/* roulang page: index */
:root {
      --ink: #07121f;
      --ink-2: #0a1c2f;
      --panel: #0d263f;
      --panel-2: #102f4d;
      --cyan: #39d5e6;
      --cyan-deep: #1599b0;
      --mint: #8ee4c1;
      --amber: #f3bd68;
      --red: #f07878;
      --paper: #f1f6f8;
      --white: #f8fbfc;
      --muted: #9fb6c5;
      --muted-2: #7894a7;
      --line: rgba(188, 226, 236, .16);
      --line-strong: rgba(87, 213, 230, .38);
      --radius: 14px;
      --radius-sm: 9px;
      --shadow: 0 18px 45px rgba(0, 0, 0, .23);
      --glow: 0 0 0 1px rgba(57, 213, 230, .22), 0 10px 30px rgba(29, 181, 207, .16);
      --max: 1200px;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      color: var(--white);
      background:
        radial-gradient(circle at 78% 7%, rgba(31, 139, 161, .16), transparent 27rem),
        var(--ink);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    body::before {
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      opacity: .22;
      content: "";
      background-image: linear-gradient(rgba(96, 177, 194, .08) 1px, transparent 1px), linear-gradient(90deg, rgba(96, 177, 194, .08) 1px, transparent 1px);
      background-size: 72px 72px;
      mask-image: linear-gradient(to bottom, #000, transparent 75%);
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    a:hover {
      color: var(--cyan);
    }

    img {
      display: block;
      max-width: 100%;
    }

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

    button,
    a {
      -webkit-tap-highlight-color: transparent;
    }

    :focus-visible {
      outline: 3px solid rgba(243, 189, 104, .9);
      outline-offset: 4px;
    }

    .container {
      width: min(calc(100% - 40px), var(--max));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      border-bottom: 1px solid var(--line);
      background: rgba(7, 18, 31, .88);
      backdrop-filter: blur(18px);
    }

    .topline {
      border-bottom: 1px solid rgba(188, 226, 236, .1);
      background: rgba(13, 38, 63, .5);
      color: var(--muted);
      font-size: 12px;
    }

    .topline-inner {
      display: flex;
      min-height: 33px;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .topline strong {
      color: var(--mint);
      font-weight: 600;
    }

    .nav-row {
      display: flex;
      min-height: 76px;
      align-items: center;
      gap: 26px;
    }

    .brand {
      display: inline-flex;
      flex: 0 0 auto;
      align-items: center;
      gap: 11px;
      color: var(--white);
      font-size: 22px;
      font-weight: 800;
      letter-spacing: 0;
    }

    .brand-mark {
      display: grid;
      width: 34px;
      height: 34px;
      place-items: center;
      border: 1px solid rgba(57, 213, 230, .6);
      border-radius: 10px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .1);
      box-shadow: 0 0 22px rgba(57, 213, 230, .19);
      font-size: 17px;
    }

    .main-nav {
      display: flex;
      min-width: 0;
      flex: 1;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .nav-links {
      display: flex;
      min-width: 0;
      align-items: center;
      gap: 4px;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      height: 40px;
      align-items: center;
      padding: 0 12px;
      border-radius: 8px;
      color: var(--muted);
      font-size: 14px;
      white-space: nowrap;
      transition: color .2s ease, background .2s ease;
    }

    .nav-link::after {
      position: absolute;
      right: 12px;
      bottom: 3px;
      left: 12px;
      height: 2px;
      background: var(--cyan);
      content: "";
      opacity: 0;
      transform: scaleX(.3);
      transition: opacity .2s ease, transform .2s ease;
    }

    .nav-link:hover,
    .nav-link.active {
      color: var(--white);
      background: rgba(57, 213, 230, .08);
    }

    .nav-link.active::after {
      opacity: 1;
      transform: scaleX(1);
    }

    .phase-nav {
      display: flex;
      flex: 0 0 auto;
      align-items: center;
      gap: 6px;
      padding-left: 16px;
      border-left: 1px solid var(--line);
    }

    .phase-chip {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 6px 9px;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--muted);
      font-size: 12px;
      white-space: nowrap;
      transition: border-color .2s ease, color .2s ease, background .2s ease;
    }

    .phase-chip:hover,
    .phase-chip.active {
      color: var(--white);
      border-color: var(--line-strong);
      background: rgba(57, 213, 230, .1);
    }

    .phase-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--muted-2);
    }

    .phase-chip.warm .phase-dot {
      background: var(--amber);
      box-shadow: 0 0 10px rgba(243, 189, 104, .7);
    }

    .phase-chip.live .phase-dot {
      background: var(--mint);
      box-shadow: 0 0 10px rgba(142, 228, 193, .8);
    }

    .phase-chip.replay .phase-dot {
      background: #829cb5;
    }

    .menu-toggle {
      display: none;
      border: 1px solid var(--line);
      border-radius: 8px;
      padding: 7px 11px;
      color: var(--white);
      background: rgba(255, 255, 255, .04);
      cursor: pointer;
    }

    .notice-bar {
      border-bottom: 1px solid var(--line);
      background: rgba(9, 31, 50, .8);
      color: var(--muted);
      font-size: 13px;
    }

    .notice-inner {
      display: flex;
      min-height: 38px;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .notice-label {
      color: var(--amber);
      font-weight: 700;
    }

    .notice-link {
      color: var(--cyan);
      white-space: nowrap;
    }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 86px 0 34px;
      background-image: linear-gradient(90deg, rgba(7, 18, 31, .97) 0%, rgba(7, 18, 31, .84) 42%, rgba(7, 18, 31, .53) 100%), url("/assets/images/backpic/back-1.webp");
      background-position: center;
      background-size: cover;
    }

    .hero::after {
      position: absolute;
      right: 0;
      bottom: 0;
      left: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--cyan), transparent);
      content: "";
      opacity: .65;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(390px, .92fr);
      align-items: center;
      gap: 64px;
    }

    .eyebrow,
    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--cyan);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .12em;
    }

    .eyebrow::before,
    .section-kicker::before {
      width: 28px;
      height: 1px;
      background: currentColor;
      content: "";
    }

    .hero h1 {
      max-width: 700px;
      margin: 18px 0 22px;
      color: var(--white);
      font-size: clamp(38px, 5vw, 68px);
      font-weight: 800;
      line-height: 1.16;
      letter-spacing: 0;
    }

    .hero-lead {
      max-width: 640px;
      margin: 0;
      color: #c2d4dc;
      font-size: 18px;
      line-height: 1.9;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
      margin-top: 32px;
    }

    .button {
      display: inline-flex;
      min-height: 46px;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: 1px solid transparent;
      border-radius: 9px;
      padding: 0 18px;
      color: var(--ink);
      background: var(--cyan);
      box-shadow: 0 7px 22px rgba(57, 213, 230, .18);
      font-size: 14px;
      font-weight: 700;
      line-height: 1.2;
      transition: background .2s ease, box-shadow .2s ease, transform .2s ease, border-color .2s ease;
    }

    .button:hover {
      color: var(--ink);
      background: #74e7f0;
      box-shadow: 0 10px 28px rgba(57, 213, 230, .3);
      transform: translateY(-2px);
    }

    .button:active {
      transform: translateY(0);
    }

    .button.secondary {
      color: var(--white);
      border-color: rgba(188, 226, 236, .3);
      background: rgba(255, 255, 255, .04);
      box-shadow: none;
    }

    .button.secondary:hover {
      color: var(--white);
      border-color: var(--cyan);
      background: rgba(57, 213, 230, .1);
    }

    .button.small {
      min-height: 38px;
      padding: 0 13px;
      font-size: 13px;
    }

    .hero-points {
      display: flex;
      flex-wrap: wrap;
      gap: 22px;
      margin-top: 38px;
      padding-top: 22px;
      border-top: 1px solid var(--line);
    }

    .hero-point {
      min-width: 115px;
    }

    .hero-point strong {
      display: block;
      color: var(--white);
      font-size: 21px;
      line-height: 1.25;
    }

    .hero-point span {
      color: var(--muted);
      font-size: 12px;
    }

    .focus-panel {
      position: relative;
      padding: 22px;
      border: 1px solid rgba(167, 228, 236, .24);
      border-radius: var(--radius);
      background: rgba(10, 31, 51, .72);
      box-shadow: var(--shadow), var(--glow);
      backdrop-filter: blur(16px);
    }

    .focus-panel::before {
      position: absolute;
      top: 14px;
      right: 16px;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--mint);
      box-shadow: 0 0 12px var(--mint);
      content: "";
    }

    .panel-head {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 12px;
      padding-bottom: 18px;
      border-bottom: 1px solid var(--line);
    }

    .panel-head h2 {
      margin: 0;
      color: var(--white);
      font-size: 20px;
      line-height: 1.35;
    }

    .panel-head p {
      margin: 4px 0 0;
      color: var(--muted);
      font-size: 12px;
    }

    .static-badge,
    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 24px;
      border: 1px solid var(--line);
      border-radius: 6px;
      padding: 0 8px;
      color: var(--muted);
      background: rgba(255, 255, 255, .035);
      font-size: 11px;
      white-space: nowrap;
    }

    .static-badge {
      color: var(--amber);
      border-color: rgba(243, 189, 104, .32);
      background: rgba(243, 189, 104, .08);
    }

    .focus-list {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .focus-item {
      display: grid;
      grid-template-columns: 30px minmax(0, 1fr) auto;
      align-items: center;
      gap: 12px;
      padding: 17px 0;
      border-bottom: 1px solid rgba(188, 226, 236, .1);
    }

    .focus-item:last-child {
      border-bottom: 0;
    }

    .rank {
      display: grid;
      width: 26px;
      height: 26px;
      place-items: center;
      border-radius: 7px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .1);
      font-size: 12px;
      font-weight: 700;
    }

    .focus-title {
      display: block;
      color: var(--white);
      font-size: 14px;
      font-weight: 700;
    }

    .focus-meta {
      display: block;
      margin-top: 2px;
      color: var(--muted-2);
      font-size: 11px;
    }

    .focus-score {
      color: var(--mint);
      font-size: 18px;
      font-weight: 800;
    }

    .panel-foot {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-top: 17px;
      padding-top: 16px;
      border-top: 1px solid var(--line);
      color: var(--muted-2);
      font-size: 11px;
    }

    .hero-strip {
      display: grid;
      grid-template-columns: 1.15fr .85fr .85fr;
      gap: 1px;
      margin-top: 66px;
      border: 1px solid var(--line);
      background: var(--line);
    }

    .strip-item {
      min-height: 64px;
      padding: 13px 17px;
      background: rgba(7, 18, 31, .72);
    }

    .strip-item small {
      display: block;
      margin-bottom: 3px;
      color: var(--muted-2);
      font-size: 11px;
    }

    .strip-item strong {
      color: #d9e9ed;
      font-size: 13px;
      font-weight: 600;
    }

    .section {
      padding: 96px 0;
    }

    .section.alt {
      background: rgba(13, 38, 63, .35);
      border-top: 1px solid rgba(188, 226, 236, .07);
      border-bottom: 1px solid rgba(188, 226, 236, .07);
    }

    .section-heading {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 30px;
      margin-bottom: 38px;
    }

    .section-heading h2 {
      max-width: 640px;
      margin: 10px 0 0;
      color: var(--white);
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.25;
      letter-spacing: 0;
    }

    .section-heading p {
      max-width: 485px;
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .feature-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.4fr) minmax(250px, .6fr);
      gap: 18px;
    }

    .feature-main {
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      min-height: 390px;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--panel);
      box-shadow: var(--shadow);
    }

    .feature-copy {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 30px;
    }

    .feature-copy h3,
    .utility-card h3,
    .service-block h3,
    .case-main h3,
    .price-card h3 {
      margin: 11px 0 10px;
      color: var(--white);
      font-size: 23px;
      line-height: 1.4;
    }

    .feature-copy p,
    .utility-card p,
    .service-block p,
    .case-main p,
    .price-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .feature-media {
      position: relative;
      min-height: 300px;
      overflow: hidden;
    }

    .feature-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: .82;
    }

    .feature-media::after {
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(13, 38, 63, .6), transparent 55%);
      content: "";
    }

    .media-caption {
      position: absolute;
      right: 18px;
      bottom: 18px;
      left: 18px;
      z-index: 1;
      padding: 11px 13px;
      border: 1px solid rgba(255, 255, 255, .18);
      border-radius: 8px;
      color: var(--white);
      background: rgba(7, 18, 31, .72);
      backdrop-filter: blur(8px);
      font-size: 12px;
    }

    .utility-stack {
      display: grid;
      gap: 18px;
    }

    .utility-card {
      display: flex;
      min-height: 186px;
      flex-direction: column;
      justify-content: space-between;
      padding: 24px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(16, 47, 77, .56);
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .utility-card:hover,
    .service-block:hover,
    .price-card:hover {
      border-color: var(--line-strong);
      box-shadow: var(--glow);
      transform: translateY(-3px);
    }

    .utility-card h3 {
      margin-top: 0;
      font-size: 18px;
    }

    .utility-card .button {
      align-self: flex-start;
    }

    .service-grid {
      display: grid;
      grid-template-columns: .75fr 1.25fr;
      gap: 56px;
      align-items: start;
    }

    .service-intro {
      position: sticky;
      top: 145px;
    }

    .service-intro h2 {
      margin: 10px 0 18px;
      color: var(--white);
      font-size: 35px;
      line-height: 1.35;
    }

    .service-intro > p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .service-note {
      margin-top: 27px;
      padding: 17px;
      border-left: 2px solid var(--amber);
      color: #c5d4da;
      background: rgba(243, 189, 104, .06);
      font-size: 13px;
    }

    .service-list {
      display: grid;
      gap: 0;
      border-top: 1px solid var(--line);
    }

    .service-block {
      display: grid;
      grid-template-columns: 48px minmax(0, 1fr) auto;
      align-items: start;
      gap: 18px;
      padding: 25px 0;
      border-bottom: 1px solid var(--line);
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .service-number {
      color: var(--cyan);
      font-size: 13px;
      font-weight: 700;
    }

    .service-block h3 {
      margin: 0 0 5px;
      font-size: 19px;
    }

    .service-block .tag {
      margin-top: 4px;
      color: var(--mint);
      border-color: rgba(142, 228, 193, .28);
      background: rgba(142, 228, 193, .06);
    }

    .service-block .button {
      margin-top: 5px;
    }

    .scene-wrap {
      display: grid;
      grid-template-columns: minmax(250px, .8fr) minmax(0, 1.2fr);
      gap: 46px;
      align-items: center;
    }

    .scene-image {
      aspect-ratio: 4 / 5;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--panel);
      box-shadow: var(--shadow);
    }

    .scene-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .scene-copy h2 {
      margin: 10px 0 15px;
      color: var(--white);
      font-size: 36px;
      line-height: 1.35;
    }

    .scene-copy > p {
      margin: 0 0 25px;
      color: var(--muted);
      font-size: 15px;
    }

    .timeline {
      position: relative;
      display: grid;
      gap: 0;
    }

    .timeline::before {
      position: absolute;
      top: 18px;
      bottom: 18px;
      left: 10px;
      width: 1px;
      background: var(--line-strong);
      content: "";
    }

    .timeline-item {
      position: relative;
      display: grid;
      grid-template-columns: 24px 1fr;
      gap: 17px;
      padding: 15px 0;
    }

    .timeline-dot {
      position: relative;
      z-index: 1;
      width: 21px;
      height: 21px;
      border: 5px solid var(--ink);
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 0 1px var(--cyan);
    }

    .timeline-item:nth-child(2) .timeline-dot {
      background: var(--amber);
      box-shadow: 0 0 0 1px var(--amber);
    }

    .timeline-item:nth-child(3) .timeline-dot {
      background: var(--mint);
      box-shadow: 0 0 0 1px var(--mint);
    }

    .timeline-item h3 {
      margin: 0 0 4px;
      color: var(--white);
      font-size: 16px;
    }

    .timeline-item p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
    }

    .brand-story {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 60px;
      align-items: start;
    }

    .brand-story h2 {
      margin: 10px 0 20px;
      color: var(--white);
      font-size: 36px;
      line-height: 1.35;
    }

    .brand-story p {
      margin: 0 0 17px;
      color: #bfd0d7;
      font-size: 15px;
    }

    .story-aside {
      padding: 28px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(13, 38, 63, .64);
      box-shadow: var(--shadow);
    }

    .story-aside h3 {
      margin: 0 0 20px;
      color: var(--white);
      font-size: 19px;
    }

    .story-list {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .story-list li {
      display: flex;
      gap: 12px;
      padding: 13px 0;
      border-bottom: 1px solid var(--line);
      color: var(--muted);
      font-size: 13px;
    }

    .story-list li:last-child {
      border-bottom: 0;
    }

    .story-list b {
      color: var(--cyan);
      font-weight: 700;
    }

    .news-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(260px, .85fr);
      gap: 18px;
    }

    .news-feature {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--panel);
    }

    .news-feature img {
      width: 100%;
      height: 100%;
      min-height: 310px;
      object-fit: cover;
    }

    .news-feature-content {
      padding: 28px;
    }

    .news-feature-content h3 {
      margin: 12px 0;
      color: var(--white);
      font-size: 24px;
      line-height: 1.45;
    }

    .news-feature-content p {
      margin: 0 0 20px;
      color: var(--muted);
      font-size: 14px;
    }

    .news-list {
      padding: 6px 23px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(16, 47, 77, .44);
    }

    .news-list a {
      display: block;
      padding: 16px 0;
      border-bottom: 1px solid var(--line);
    }

    .news-list a:last-child {
      border-bottom: 0;
    }

    .news-list a:hover .news-title {
      color: var(--cyan);
    }

    .news-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      color: var(--muted-2);
      font-size: 11px;
    }

    .news-title {
      display: block;
      margin-top: 4px;
      color: #e7f0f2;
      font-size: 14px;
      font-weight: 700;
      transition: color .2s ease;
    }

    .case-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.25fr) minmax(270px, .75fr);
      gap: 18px;
    }

    .case-main {
      padding: 32px;
      border: 1px solid var(--line-strong);
      border-radius: var(--radius);
      background:
        linear-gradient(135deg, rgba(57, 213, 230, .1), transparent 48%),
        var(--panel);
      box-shadow: var(--shadow);
    }

    .case-main h3 {
      max-width: 620px;
      margin-top: 12px;
      font-size: 28px;
    }

    .case-main p {
      max-width: 680px;
      font-size: 15px;
    }

    .case-data {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1px;
      margin: 28px 0;
      border: 1px solid var(--line);
      background: var(--line);
    }

    .case-data div {
      padding: 13px;
      background: rgba(7, 18, 31, .46);
    }

    .case-data strong {
      display: block;
      color: var(--cyan);
      font-size: 21px;
    }

    .case-data span {
      color: var(--muted);
      font-size: 11px;
    }

    .case-side {
      display: grid;
      gap: 18px;
    }

    .case-mini {
      padding: 23px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(13, 38, 63, .56);
    }

    .case-mini h3 {
      margin: 9px 0 5px;
      color: var(--white);
      font-size: 18px;
    }

    .case-mini p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
    }

    .pricing-heading {
      max-width: 700px;
      margin-bottom: 34px;
    }

    .pricing-heading h2 {
      margin: 10px 0 14px;
      color: var(--white);
      font-size: 38px;
      line-height: 1.3;
    }

    .pricing-heading p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      align-items: stretch;
    }

    .price-card {
      display: flex;
      min-height: 390px;
      flex-direction: column;
      padding: 27px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(13, 38, 63, .64);
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .price-card.featured {
      border-color: var(--cyan);
      background: rgba(18, 57, 78, .72);
      box-shadow: var(--glow);
    }

    .price-card h3 {
      margin-top: 16px;
      font-size: 22px;
    }

    .price-card p {
      min-height: 75px;
    }

    .price-list {
      display: grid;
      gap: 8px;
      margin: 23px 0;
      padding: 17px 0;
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
      list-style: none;
    }

    .price-list li {
      position: relative;
      padding-left: 20px;
      color: #c6d6dc;
      font-size: 13px;
    }

    .price-list li::before {
      position: absolute;
      top: 10px;
      left: 0;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--cyan);
      content: "";
    }

    .price-card .button {
      width: 100%;
      margin-top: auto;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: .72fr 1.28fr;
      gap: 55px;
    }

    .faq-intro h2 {
      margin: 10px 0 15px;
      color: var(--white);
      font-size: 35px;
      line-height: 1.35;
    }

    .faq-intro p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .accordion {
      margin: 0;
      border: 0;
      background: transparent;
    }

    .accordion-item {
      border-bottom: 1px solid var(--line);
      background: transparent;
    }

    .accordion-title {
      display: block;
      padding: 18px 38px 18px 0;
      border: 0;
      color: var(--white);
      font-size: 16px;
      font-weight: 700;
    }

    .accordion-title:hover,
    .accordion-title:focus {
      color: var(--cyan);
      background: transparent;
    }

    .accordion-title::before {
      right: 8px;
      color: var(--cyan);
    }

    .accordion-content {
      padding: 0 35px 20px 0;
      border: 0;
      color: var(--muted);
      background: transparent;
      font-size: 14px;
    }

    .cta-section {
      padding: 32px 0 100px;
    }

    .cta-box {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      padding: 34px 38px;
      border: 1px solid rgba(57, 213, 230, .36);
      border-radius: var(--radius);
      background:
        linear-gradient(105deg, rgba(57, 213, 230, .12), transparent 54%),
        rgba(13, 38, 63, .76);
      box-shadow: var(--glow);
    }

    .cta-box h2 {
      margin: 0 0 7px;
      color: var(--white);
      font-size: 27px;
      line-height: 1.35;
    }

    .cta-box p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .site-footer {
      padding: 46px 0 25px;
      border-top: 1px solid var(--line);
      background: #06101b;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.1fr 1fr 1fr;
      gap: 45px;
      padding-bottom: 34px;
    }

    .footer-brand p {
      max-width: 360px;
      margin: 14px 0 0;
      color: var(--muted);
      font-size: 13px;
    }

    .footer-title {
      margin: 0 0 13px;
      color: var(--white);
      font-size: 14px;
    }

    .footer-links {
      display: grid;
      gap: 7px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .footer-links a {
      color: var(--muted);
      font-size: 13px;
    }

    .footer-links a:hover {
      color: var(--cyan);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding-top: 20px;
      border-top: 1px solid var(--line);
      color: var(--muted-2);
      font-size: 12px;
    }

    .footer-records {
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
    }

    .footer-records a {
      color: var(--muted);
    }

    .footer-records a:hover {
      color: var(--cyan);
    }

    @media (max-width: 1024px) {
      .nav-row {
        gap: 14px;
      }

      .phase-nav {
        padding-left: 10px;
      }

      .phase-chip {
        padding-inline: 7px;
      }

      .hero-grid {
        gap: 35px;
      }

      .feature-main {
        grid-template-columns: 1fr;
      }

      .feature-media {
        min-height: 240px;
      }

      .service-grid,
      .brand-story,
      .faq-grid {
        gap: 35px;
      }
    }

    @media (max-width: 768px) {
      .container {
        width: min(calc(100% - 30px), var(--max));
      }

      .topline-inner {
        min-height: 31px;
      }

      .topline-inner span:last-child {
        display: none;
      }

      .nav-row {
        position: relative;
        min-height: 67px;
        justify-content: space-between;
      }

      .menu-toggle {
        display: inline-flex;
        align-items: center;
        gap: 7px;
      }

      .main-nav {
        position: absolute;
        top: calc(100% + 1px);
        right: 0;
        left: 0;
        display: none;
        align-items: stretch;
        flex-direction: column;
        gap: 12px;
        padding: 15px;
        border: 1px solid var(--line);
        background: rgba(7, 18, 31, .98);
        box-shadow: var(--shadow);
      }

      .main-nav.is-open {
        display: flex;
      }

      .nav-links {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 5px;
      }

      .nav-link {
        justify-content: center;
      }

      .phase-nav {
        overflow-x: auto;
        justify-content: flex-start;
        padding: 12px 0 0;
        border-top: 1px solid var(--line);
        border-left: 0;
      }

      .notice-inner {
        min-height: 42px;
      }

      .notice-inner .notice-link {
        display: none;
      }

      .hero {
        padding-top: 58px;
      }

      .hero-grid,
      .feature-layout,
      .service-grid,
      .scene-wrap,
      .brand-story,
      .news-layout,
      .case-layout,
      .faq-grid {
        grid-template-columns: 1fr;
      }

      .hero h1 {
        font-size: 43px;
      }

      .hero-lead {
        font-size: 16px;
      }

      .hero-strip {
        grid-template-columns: 1fr;
        margin-top: 45px;
      }

      .strip-item {
        min-height: auto;
      }

      .section {
        padding: 70px 0;
      }

      .section-heading {
        display: block;
        margin-bottom: 28px;
      }

      .section-heading p {
        margin-top: 15px;
      }

      .service-intro {
        position: static;
      }

      .scene-image {
        max-height: 390px;
      }

      .story-aside {
        margin-top: 4px;
      }

      .news-feature {
        grid-template-columns: 1fr;
      }

      .news-feature img {
        min-height: 225px;
        max-height: 280px;
      }

      .price-grid {
        grid-template-columns: 1fr;
      }

      .price-card {
        min-height: auto;
      }

      .faq-intro h2,
      .brand-story h2,
      .scene-copy h2 {
        font-size: 30px;
      }

      .cta-box {
        display: block;
        padding: 27px;
      }

      .cta-box .button {
        width: 100%;
        margin-top: 21px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
      }

      .footer-brand {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 520px) {
      .hero h1 {
        font-size: 36px;
      }

      .hero-actions {
        display: grid;
        grid-template-columns: 1fr;
      }

      .hero-actions .button {
        width: 100%;
      }

      .hero-points {
        gap: 15px;
      }

      .focus-panel {
        padding: 17px;
      }

      .feature-copy,
      .case-main {
        padding: 23px;
      }

      .service-block {
        grid-template-columns: 34px minmax(0, 1fr);
        gap: 11px;
      }

      .service-block .button {
        grid-column: 2;
        justify-self: start;
      }

      .case-data {
        grid-template-columns: 1fr;
      }

      .news-feature-content {
        padding: 22px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }

      .footer-brand {
        grid-column: auto;
      }

      .footer-bottom {
        display: block;
      }

      .footer-records {
        margin-top: 9px;
      }
    }

/* roulang page: category1 */
:root {
      --ink: #07121f;
      --ink-2: #0a1c2f;
      --panel: #0d263f;
      --panel-2: #102f4d;
      --cyan: #39d5e6;
      --cyan-deep: #1599b0;
      --mint: #8ee4c1;
      --amber: #f3bd68;
      --red: #f07878;
      --paper: #f1f6f8;
      --white: #f8fbfc;
      --muted: #9fb6c5;
      --muted-2: #7894a7;
      --line: rgba(188, 226, 236, .16);
      --line-strong: rgba(87, 213, 230, .38);
      --radius: 14px;
      --radius-sm: 9px;
      --shadow: 0 18px 45px rgba(0, 0, 0, .23);
      --glow: 0 0 0 1px rgba(57, 213, 230, .22), 0 10px 30px rgba(29, 181, 207, .16);
      --max: 1200px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--white);
      background: radial-gradient(circle at 79% 4%, rgba(27, 137, 160, .16), transparent 27rem), var(--ink);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    body::before {
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      opacity: .22;
      content: "";
      background-image: linear-gradient(rgba(96, 177, 194, .08) 1px, transparent 1px), linear-gradient(90deg, rgba(96, 177, 194, .08) 1px, transparent 1px);
      background-size: 72px 72px;
      mask-image: linear-gradient(to bottom, #000, transparent 76%);
    }
    a { color: inherit; text-decoration: none; }
    a:hover { color: var(--cyan); }
    img { display: block; max-width: 100%; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    button { cursor: pointer; }
    :focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; }

    .container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      border-bottom: 1px solid var(--line);
      background: rgba(7, 18, 31, .9);
      backdrop-filter: blur(18px);
    }
    .nav-row { display: flex; min-height: 76px; align-items: center; gap: 26px; }
    .brand {
      display: inline-flex;
      flex: 0 0 auto;
      align-items: center;
      gap: 11px;
      color: var(--white);
      font-size: 22px;
      font-weight: 800;
      letter-spacing: 0;
    }
    .brand-mark {
      display: grid;
      width: 34px;
      height: 34px;
      place-items: center;
      border: 1px solid rgba(57, 213, 230, .6);
      border-radius: 10px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .1);
      box-shadow: 0 0 22px rgba(57, 213, 230, .19);
      font-size: 17px;
    }
    .main-nav { display: flex; min-width: 0; flex: 1; align-items: center; justify-content: space-between; gap: 18px; }
    .nav-links { display: flex; min-width: 0; align-items: center; gap: 4px; }
    .nav-link {
      position: relative;
      display: inline-flex;
      height: 40px;
      align-items: center;
      padding: 0 12px;
      border-radius: 8px;
      color: var(--muted);
      font-size: 14px;
      white-space: nowrap;
      transition: color .2s ease, background .2s ease;
    }
    .nav-link::after {
      position: absolute;
      right: 12px;
      bottom: 3px;
      left: 12px;
      height: 2px;
      background: var(--cyan);
      content: "";
      opacity: 0;
      transform: scaleX(.3);
      transition: opacity .2s ease, transform .2s ease;
    }
    .nav-link:hover, .nav-link.active { color: var(--white); background: rgba(57, 213, 230, .08); }
    .nav-link.active::after { opacity: 1; transform: scaleX(1); }
    .phase-nav {
      display: flex;
      flex: 0 0 auto;
      align-items: center;
      gap: 6px;
      padding-left: 16px;
      border-left: 1px solid var(--line);
    }
    .phase-chip {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 6px 9px;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--muted);
      font-size: 12px;
      white-space: nowrap;
      transition: border-color .2s ease, color .2s ease, background .2s ease;
    }
    .phase-chip:hover, .phase-chip.active { color: var(--white); border-color: var(--line-strong); background: rgba(57, 213, 230, .1); }
    .phase-dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
    .phase-chip.warm .phase-dot { background: var(--amber); box-shadow: 0 0 10px rgba(243, 189, 104, .7); }
    .phase-chip.live .phase-dot { background: var(--mint); box-shadow: 0 0 10px rgba(142, 228, 193, .8); }
    .phase-chip.replay .phase-dot { background: #829cb5; }
    .menu-toggle {
      display: none;
      border: 1px solid var(--line);
      border-radius: 8px;
      padding: 7px 11px;
      color: var(--white);
      background: rgba(255,255,255,.04);
    }
    .status-strip {
      border-bottom: 1px solid var(--line);
      background: rgba(13, 38, 63, .7);
    }
    .status-inner { display: flex; min-height: 39px; align-items: center; justify-content: space-between; gap: 18px; color: var(--muted); font-size: 12px; }
    .status-note { display: inline-flex; align-items: center; gap: 8px; }
    .status-note i { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px rgba(57,213,230,.7); }

    .channel-hero {
      position: relative;
      overflow: hidden;
      padding: 76px 0 54px;
      border-bottom: 1px solid var(--line);
      background-image: linear-gradient(90deg, rgba(7,18,31,.97) 0%, rgba(7,18,31,.86) 45%, rgba(7,18,31,.47) 100%), url("/assets/images/backpic/back-2.webp");
      background-size: cover;
      background-position: center;
    }
    .channel-hero::after {
      position: absolute;
      inset: auto 0 0;
      height: 1px;
      content: "";
      background: linear-gradient(90deg, transparent, var(--cyan), transparent);
      opacity: .7;
    }
    .crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; }
    .crumbs span { color: var(--muted-2); }
    .eyebrow, .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--cyan);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .12em;
    }
    .eyebrow::before, .section-kicker::before { width: 28px; height: 1px; background: currentColor; content: ""; }
    .hero-copy { max-width: 765px; padding-top: 31px; }
    h1, h2, h3, p { margin-top: 0; }
    .channel-hero h1 {
      max-width: 760px;
      margin: 16px 0 19px;
      font-size: clamp(38px, 5.2vw, 66px);
      line-height: 1.15;
      letter-spacing: 0;
    }
    .channel-lead { max-width: 700px; margin-bottom: 25px; color: #c2d4dc; font-size: 17px; line-height: 1.9; }
    .hero-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
    .tag, .meta-label {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      padding: 3px 10px;
      border: 1px solid var(--line);
      border-radius: 7px;
      color: var(--muted);
      background: rgba(7,18,31,.46);
      font-size: 12px;
      line-height: 1.4;
    }
    .tag.cyan { border-color: rgba(57,213,230,.35); color: var(--cyan); background: rgba(57,213,230,.08); }
    .tag.amber { border-color: rgba(243,189,104,.34); color: var(--amber); background: rgba(243,189,104,.08); }
    .meta-text { color: var(--muted); font-size: 13px; }

    main { padding: 28px 0 86px; }
    .section { padding: 56px 0; }
    .section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 25px; }
    .section-head h2 { margin: 9px 0 0; font-size: clamp(26px, 3vw, 38px); line-height: 1.3; letter-spacing: 0; }
    .section-intro { max-width: 430px; margin: 0; color: var(--muted); font-size: 14px; }

    .filter-bar {
      display: grid;
      grid-template-columns: minmax(240px, 1.5fr) minmax(130px, .65fr) minmax(130px, .65fr) auto;
      gap: 11px;
      padding: 13px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(13,38,63,.72);
      box-shadow: var(--shadow);
      backdrop-filter: blur(13px);
    }
    .search-field { position: relative; }
    .search-field::before { position: absolute; top: 50%; left: 14px; color: var(--cyan); content: "⌕"; font-size: 22px; transform: translateY(-54%); }
    .field-control {
      width: 100%;
      height: 46px;
      margin: 0;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--white);
      background: rgba(5,17,29,.68);
      box-shadow: none;
      transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }
    input.field-control { padding: 0 14px 0 42px; }
    select.field-control { padding: 0 34px 0 13px; }
    .field-control::placeholder { color: var(--muted-2); }
    .field-control:hover, .field-control:focus { border-color: var(--line-strong); background: rgba(10,28,47,.95); box-shadow: 0 0 0 3px rgba(57,213,230,.09); outline: none; }
    .button {
      display: inline-flex;
      min-height: 46px;
      align-items: center;
      justify-content: center;
      gap: 8px;
      margin: 0;
      padding: 0 18px;
      border: 1px solid transparent;
      border-radius: 8px;
      color: #03121a;
      background: var(--cyan);
      box-shadow: 0 0 0 1px rgba(57,213,230,.2), 0 10px 28px rgba(29,181,207,.2);
      font-size: 14px;
      font-weight: 800;
      line-height: 1;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .button:hover { color: #03121a; background: #66e2ef; box-shadow: 0 0 0 1px rgba(102,226,239,.5), 0 13px 32px rgba(29,181,207,.3); transform: translateY(-2px); }
    .button:active { transform: translateY(0); box-shadow: none; }
    .button.secondary { color: var(--white); border-color: var(--line-strong); background: rgba(57,213,230,.08); box-shadow: none; }
    .button.secondary:hover { color: var(--cyan); border-color: var(--cyan); background: rgba(57,213,230,.14); }
    .button.small { min-height: 38px; padding: 0 13px; font-size: 13px; }

    .feature-panel {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(290px, .8fr);
      overflow: hidden;
      border: 1px solid var(--line-strong);
      border-radius: var(--radius);
      background: rgba(13,38,63,.78);
      box-shadow: var(--shadow), var(--glow);
      transition: transform .25s ease, border-color .25s ease;
    }
    .feature-panel:hover { border-color: rgba(57,213,230,.62); transform: translateY(-3px); }
    .feature-image { position: relative; min-height: 365px; overflow: hidden; }
    .feature-image::after { position: absolute; inset: 0; content: ""; background: linear-gradient(90deg, transparent, rgba(7,18,31,.5)); }
    .feature-image img { width: 100%; height: 100%; object-fit: cover; }
    .image-caption { position: absolute; z-index: 1; right: 16px; bottom: 14px; left: 16px; color: #d3e2e7; font-size: 12px; }
    .feature-body { display: flex; flex-direction: column; justify-content: center; padding: 38px; }
    .feature-body h2 { margin: 14px 0 14px; font-size: clamp(25px, 3vw, 38px); line-height: 1.3; }
    .feature-body p { color: var(--muted); }
    .feature-footer { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 17px; }

    .content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 284px; gap: 28px; margin-top: 41px; }
    .list-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
    .list-heading h2 { margin: 0; font-size: 22px; }
    .count { color: var(--muted); font-size: 13px; }
    .news-list { border-top: 0; }
    .news-item {
      display: grid;
      grid-template-columns: 94px minmax(0, 1fr) auto;
      align-items: center;
      gap: 18px;
      padding: 22px 0;
      border-bottom: 1px solid var(--line);
      transition: padding .2s ease, background .2s ease;
    }
    .news-item:hover { padding-right: 11px; padding-left: 11px; background: rgba(57,213,230,.045); }
    .news-date { color: var(--muted); font-size: 12px; line-height: 1.45; }
    .news-date strong { display: block; color: var(--cyan); font-size: 21px; font-weight: 800; }
    .news-content h3 { margin: 0 0 5px; color: var(--white); font-size: 18px; line-height: 1.5; transition: color .2s ease; }
    .news-item:hover h3 { color: var(--cyan); }
    .news-content p { display: -webkit-box; overflow: hidden; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.72; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
    .item-meta { display: flex; align-items: center; gap: 8px; margin-top: 9px; }
    .read-icon {
      display: grid;
      width: 35px;
      height: 35px;
      place-items: center;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--cyan);
      background: rgba(57,213,230,.05);
      font-size: 19px;
      transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
    }
    .news-item:hover .read-icon { border-color: var(--cyan); background: rgba(57,213,230,.13); transform: translateX(3px); }

    .side-panel { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(13,38,63,.54); box-shadow: var(--shadow); }
    .side-panel + .side-panel { margin-top: 18px; }
    .side-panel h2 { margin: 0 0 15px; font-size: 17px; }
    .topic-list { margin: 0; padding: 0; list-style: none; }
    .topic-list li { border-top: 1px solid var(--line); }
    .topic-list li:first-child { border-top: 0; }
    .topic-list a { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 11px 0; color: #d2e0e6; font-size: 14px; }
    .topic-list a:hover { color: var(--cyan); }
    .topic-list span { color: var(--muted-2); font-size: 12px; }
    .quick-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .quick-tags a { transition: border-color .2s ease, background .2s ease, color .2s ease; }
    .quick-tags a:hover { border-color: var(--cyan); color: var(--cyan); background: rgba(57,213,230,.1); }
    .notice { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
    .notice strong { color: var(--white); }

    .pager { display: flex; align-items: center; justify-content: center; gap: 8px; padding-top: 32px; }
    .pager a, .pager span {
      display: grid;
      width: 37px;
      height: 37px;
      place-items: center;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--muted);
      background: rgba(13,38,63,.5);
      font-size: 13px;
      transition: color .2s ease, border-color .2s ease, background .2s ease;
    }
    .pager a:hover, .pager .current { border-color: var(--cyan); color: var(--ink); background: var(--cyan); }
    .pager .ellipsis { width: 22px; border: 0; background: transparent; }

    .guide-band { margin-top: 65px; padding: 42px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(10,28,47,.58); }
    .guide-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 52px; align-items: start; }
    .guide-grid h2 { margin: 11px 0; font-size: clamp(25px, 3vw, 36px); line-height: 1.35; }
    .guide-grid > div > p { color: var(--muted); }
    .guide-points { margin: 0; padding: 0; list-style: none; }
    .guide-points li { position: relative; padding: 0 0 18px 30px; color: #d2e0e6; }
    .guide-points li::before { position: absolute; top: 8px; left: 0; width: 12px; height: 12px; border: 2px solid var(--cyan); border-radius: 50%; content: ""; box-shadow: 0 0 12px rgba(57,213,230,.45); }
    .guide-points li:not(:last-child)::after { position: absolute; top: 24px; bottom: 2px; left: 5px; width: 1px; background: var(--line-strong); content: ""; }

    .faq-section { padding-top: 74px; }
    .faq-grid { display: grid; grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr); gap: 45px; align-items: start; }
    .faq-grid h2 { margin: 10px 0 13px; font-size: clamp(26px, 3vw, 38px); line-height: 1.3; }
    .faq-grid p { color: var(--muted); }
    .accordion { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: rgba(13,38,63,.53); }
    .accordion-item { border-bottom: 1px solid var(--line); }
    .accordion-item:last-child { border-bottom: 0; }
    .accordion-title {
      position: relative;
      padding: 18px 49px 18px 19px;
      border: 0;
      color: var(--white);
      background: transparent;
      font-size: 15px;
      font-weight: 700;
      line-height: 1.55;
      transition: color .2s ease, background .2s ease;
    }
    .accordion-title::before { right: 19px; color: var(--cyan); content: "+"; font-size: 21px; font-weight: 400; }
    .accordion-title:hover, .accordion-title:focus { color: var(--cyan); background: rgba(57,213,230,.06); }
    .accordion-content { padding: 0 19px 19px; border: 0; color: var(--muted); background: transparent; font-size: 14px; line-height: 1.85; }

    .cta-box {
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
      margin-top: 72px;
      padding: 42px;
      border: 1px solid rgba(57,213,230,.38);
      border-radius: var(--radius);
      background: linear-gradient(115deg, rgba(14,52,76,.88), rgba(13,38,63,.82)), url("/assets/images/backpic/back-3.webp") center/cover;
      box-shadow: var(--shadow), var(--glow);
    }
    .cta-box h2 { margin: 8px 0 8px; font-size: clamp(25px, 3vw, 38px); line-height: 1.3; }
    .cta-box p { max-width: 660px; margin: 0; color: #c7d9e0; }
    .cta-actions { display: flex; flex: 0 0 auto; flex-wrap: wrap; gap: 10px; }

    .site-footer { border-top: 1px solid var(--line); background: #06101c; }
    .footer-grid { display: grid; grid-template-columns: 1.7fr .8fr .8fr; gap: 44px; padding: 55px 0 39px; }
    .footer-brand p { max-width: 430px; margin: 15px 0 0; color: var(--muted); font-size: 13px; line-height: 1.85; }
    .footer-title { margin: 2px 0 14px; color: var(--white); font-size: 14px; }
    .footer-links { margin: 0; padding: 0; list-style: none; }
    .footer-links li { margin: 8px 0; }
    .footer-links a { color: var(--muted); font-size: 13px; }
    .footer-links a:hover { color: var(--cyan); }
    .footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 0 27px; border-top: 1px solid var(--line); color: var(--muted-2); font-size: 12px; }
    .footer-records { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 15px; }
    .footer-records a:hover { color: var(--cyan); }

    @media (max-width: 1120px) {
      .nav-row { gap: 14px; }
      .nav-link { padding-right: 8px; padding-left: 8px; }
      .phase-nav { padding-left: 11px; }
      .content-layout { grid-template-columns: minmax(0, 1fr) 250px; }
    }
    @media (max-width: 960px) {
      .main-nav { overflow-x: auto; padding: 8px 0; }
      .nav-row { min-height: 68px; }
      .phase-nav { margin-left: auto; }
      .channel-hero { padding-top: 60px; }
      .content-layout { grid-template-columns: 1fr; }
      .sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
      .side-panel + .side-panel { margin-top: 0; }
      .sidebar .side-panel:last-child { grid-column: 1 / -1; }
      .guide-grid, .faq-grid { grid-template-columns: 1fr; gap: 24px; }
    }
    @media (max-width: 720px) {
      .container { width: min(calc(100% - 28px), var(--max)); }
      .site-header { position: relative; }
      .nav-row { flex-wrap: wrap; padding: 12px 0; }
      .menu-toggle { display: inline-flex; margin-left: auto; }
      .main-nav { display: none; order: 3; width: 100%; flex-basis: 100%; }
      .main-nav.is-open { display: block; }
      .nav-links, .phase-nav { overflow-x: auto; padding-bottom: 4px; }
      .nav-links { padding-right: 2px; }
      .phase-nav { margin: 10px 0 0; padding: 10px 0 0; border-top: 1px solid var(--line); border-left: 0; }
      .status-inner { align-items: flex-start; padding: 8px 0; }
      .status-inner > span:last-child { display: none; }
      .channel-hero { padding: 48px 0 43px; }
      .channel-hero h1 { font-size: 39px; }
      .filter-bar { grid-template-columns: 1fr 1fr; }
      .filter-bar .search-field { grid-column: 1 / -1; }
      .filter-bar .button { grid-column: 1 / -1; width: 100%; }
      .feature-panel { grid-template-columns: 1fr; }
      .feature-image { min-height: 245px; }
      .feature-image::after { background: linear-gradient(0deg, rgba(7,18,31,.65), transparent 58%); }
      .feature-body { padding: 27px 23px; }
      .news-item { grid-template-columns: 65px minmax(0,1fr) 33px; gap: 11px; }
      .news-date strong { font-size: 18px; }
      .news-content h3 { font-size: 16px; }
      .news-content p { -webkit-line-clamp: 2; }
      .sidebar { grid-template-columns: 1fr; }
      .sidebar .side-panel:last-child { grid-column: auto; }
      .guide-band { padding: 29px 0; background: transparent; }
      .cta-box { display: block; padding: 28px 23px; }
      .cta-actions { margin-top: 22px; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; padding-top: 42px; }
      .footer-brand { grid-column: 1 / -1; }
      .footer-bottom { align-items: flex-start; flex-direction: column; }
      .footer-records { justify-content: flex-start; gap: 9px 15px; }
    }
    @media (max-width: 520px) {
      body { font-size: 15px; }
      .brand { font-size: 20px; }
      .channel-hero h1 { font-size: 34px; }
      .channel-lead { font-size: 16px; }
      .filter-bar { grid-template-columns: 1fr; }
      .filter-bar select { grid-column: 1; }
      .section { padding: 39px 0; }
      .section-head { display: block; margin-bottom: 19px; }
      .section-intro { margin-top: 10px; }
      .feature-image { min-height: 210px; }
      .feature-body h2 { font-size: 25px; }
      .news-item { grid-template-columns: 54px minmax(0,1fr); padding: 18px 0; }
      .read-icon { display: none; }
      .news-date { font-size: 11px; }
      .news-date strong { font-size: 16px; }
      .item-meta { flex-wrap: wrap; }
      .pager { gap: 5px; }
      .pager a, .pager span { width: 33px; height: 33px; }
      .cta-actions .button { width: 100%; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-brand { grid-column: auto; }
    }

/* roulang page: category2 */
:root {
      --ink: #07121f;
      --ink-2: #0a1c2f;
      --panel: #0d263f;
      --panel-2: #102f4d;
      --cyan: #39d5e6;
      --cyan-deep: #1599b0;
      --mint: #8ee4c1;
      --amber: #f3bd68;
      --red: #f07878;
      --paper: #f1f6f8;
      --white: #f8fbfc;
      --muted: #9fb6c5;
      --muted-2: #7894a7;
      --line: rgba(188, 226, 236, .16);
      --line-strong: rgba(87, 213, 230, .38);
      --radius: 14px;
      --radius-sm: 9px;
      --shadow: 0 18px 45px rgba(0, 0, 0, .23);
      --glow: 0 0 0 1px rgba(57, 213, 230, .22), 0 10px 30px rgba(29, 181, 207, .16);
      --max: 1200px;
    }

    html { scroll-behavior: smooth; }
    *, *::before, *::after { box-sizing: border-box; }
    body {
      margin: 0;
      color: var(--white);
      background:
        radial-gradient(circle at 82% 5%, rgba(31, 139, 161, .16), transparent 28rem),
        var(--ink);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    body::before {
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      opacity: .22;
      content: "";
      background-image:
        linear-gradient(rgba(96, 177, 194, .08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 177, 194, .08) 1px, transparent 1px);
      background-size: 72px 72px;
      mask-image: linear-gradient(to bottom, #000, transparent 75%);
    }
    a { color: inherit; text-decoration: none; }
    a:hover { color: var(--cyan); }
    img { display: block; max-width: 100%; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
      outline: 3px solid rgba(57, 213, 230, .6);
      outline-offset: 3px;
    }
    .container {
      width: min(calc(100% - 40px), var(--max));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      border-bottom: 1px solid var(--line);
      background: rgba(7, 18, 31, .9);
      backdrop-filter: blur(18px);
    }
    .nav-row {
      display: flex;
      min-height: 76px;
      align-items: center;
      gap: 26px;
    }
    .brand {
      display: inline-flex;
      flex: 0 0 auto;
      align-items: center;
      gap: 11px;
      color: var(--white);
      font-size: 22px;
      font-weight: 800;
    }
    .brand-mark {
      display: grid;
      width: 34px;
      height: 34px;
      place-items: center;
      border: 1px solid rgba(57, 213, 230, .6);
      border-radius: 10px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .1);
      box-shadow: 0 0 22px rgba(57, 213, 230, .19);
      font-size: 17px;
    }
    .main-nav {
      display: flex;
      min-width: 0;
      flex: 1;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }
    .nav-links {
      display: flex;
      min-width: 0;
      align-items: center;
      gap: 4px;
    }
    .nav-link {
      position: relative;
      display: inline-flex;
      height: 40px;
      align-items: center;
      padding: 0 12px;
      border-radius: 8px;
      color: var(--muted);
      font-size: 14px;
      white-space: nowrap;
      transition: color .2s ease, background .2s ease;
    }
    .nav-link::after {
      position: absolute;
      right: 12px;
      bottom: 3px;
      left: 12px;
      height: 2px;
      background: var(--cyan);
      content: "";
      opacity: 0;
      transform: scaleX(.3);
      transition: opacity .2s ease, transform .2s ease;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--white);
      background: rgba(57, 213, 230, .08);
    }
    .nav-link.active::after { opacity: 1; transform: scaleX(1); }
    .phase-nav {
      display: flex;
      flex: 0 0 auto;
      align-items: center;
      gap: 6px;
      padding-left: 16px;
      border-left: 1px solid var(--line);
    }
    .phase-chip {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 6px 9px;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--muted);
      font-size: 12px;
      white-space: nowrap;
      transition: border-color .2s ease, color .2s ease, background .2s ease;
    }
    .phase-chip:hover, .phase-chip.active {
      color: var(--white);
      border-color: var(--line-strong);
      background: rgba(57, 213, 230, .1);
    }
    .phase-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: currentColor;
    }
    .phase-chip.warm .phase-dot { background: var(--amber); box-shadow: 0 0 10px rgba(243, 189, 104, .7); }
    .phase-chip.live .phase-dot { background: var(--mint); box-shadow: 0 0 10px rgba(142, 228, 193, .8); }
    .phase-chip.replay .phase-dot { background: #829cb5; }
    .menu-toggle {
      display: none;
      border: 1px solid var(--line);
      border-radius: 8px;
      padding: 7px 11px;
      color: var(--white);
      background: rgba(255, 255, 255, .04);
      cursor: pointer;
    }
    .notice-bar {
      border-bottom: 1px solid rgba(188, 226, 236, .1);
      color: var(--muted);
      background: rgba(13, 38, 63, .62);
      font-size: 13px;
    }
    .notice-inner {
      display: flex;
      min-height: 36px;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .notice-label { color: var(--amber); font-weight: 700; }
    .notice-link { color: var(--cyan); }

    .page-banner {
      position: relative;
      overflow: hidden;
      padding: 62px 0 48px;
      border-bottom: 1px solid var(--line);
      background:
        linear-gradient(90deg, rgba(7, 18, 31, .98) 0%, rgba(7, 18, 31, .86) 50%, rgba(7, 18, 31, .68) 100%),
        url("/assets/images/backpic/back-2.webp") center / cover;
    }
    .page-banner::after {
      position: absolute;
      right: 0;
      bottom: 0;
      left: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--cyan), transparent);
      content: "";
      opacity: .65;
    }
    .banner-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
      align-items: end;
      gap: 60px;
    }
    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 9px;
      margin-bottom: 19px;
      color: var(--muted-2);
      font-size: 13px;
    }
    .breadcrumb span { color: var(--cyan); }
    .eyebrow, .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--cyan);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .12em;
    }
    .eyebrow::before, .section-kicker::before {
      width: 28px;
      height: 1px;
      background: currentColor;
      content: "";
    }
    .page-banner h1 {
      max-width: 760px;
      margin: 15px 0 18px;
      color: var(--white);
      font-size: clamp(36px, 5vw, 62px);
      font-weight: 800;
      line-height: 1.2;
    }
    .banner-copy {
      max-width: 690px;
      margin: 0;
      color: #c4d7df;
      font-size: 18px;
      line-height: 1.85;
    }
    .banner-side {
      padding: 21px 23px;
      border: 1px solid var(--line-strong);
      border-radius: var(--radius);
      background: rgba(13, 38, 63, .68);
      box-shadow: var(--glow);
      backdrop-filter: blur(12px);
    }
    .side-overline {
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: var(--muted);
      font-size: 12px;
    }
    .side-overline strong { color: var(--mint); font-weight: 700; }
    .banner-side h2 {
      margin: 14px 0 8px;
      font-size: 24px;
      line-height: 1.35;
    }
    .banner-side p { margin: 0; color: var(--muted); font-size: 14px; }
    .mini-line {
      height: 5px;
      margin-top: 17px;
      overflow: hidden;
      border-radius: 5px;
      background: rgba(255,255,255,.08);
    }
    .mini-line i {
      display: block;
      width: 72%;
      height: 100%;
      border-radius: inherit;
      background: var(--cyan);
      box-shadow: 0 0 12px rgba(57, 213, 230, .7);
    }

    main { padding: 48px 0 82px; }
    .section { margin-top: 72px; }
    .section:first-child { margin-top: 0; }
    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 25px;
    }
    .section-head h2 {
      margin: 8px 0 0;
      color: var(--white);
      font-size: clamp(25px, 3vw, 36px);
      line-height: 1.3;
    }
    .section-intro {
      max-width: 560px;
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .metric-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(13, 38, 63, .7);
      box-shadow: var(--shadow);
    }
    .metric {
      position: relative;
      min-height: 128px;
      padding: 22px 24px;
      border-right: 1px solid var(--line);
    }
    .metric:last-child { border-right: 0; }
    .metric-label { color: var(--muted); font-size: 13px; }
    .metric-value {
      display: block;
      margin-top: 6px;
      color: var(--white);
      font-size: 30px;
      font-weight: 800;
      line-height: 1.2;
    }
    .metric-note { display: block; margin-top: 6px; color: var(--muted-2); font-size: 12px; }
    .metric .signal {
      position: absolute;
      top: 26px;
      right: 23px;
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--mint);
      box-shadow: 0 0 12px rgba(142, 228, 193, .75);
    }
    .metric:nth-child(2) .signal { background: var(--cyan); box-shadow: 0 0 12px rgba(57, 213, 230, .75); }
    .metric:nth-child(3) .signal { background: var(--amber); box-shadow: 0 0 12px rgba(243, 189, 104, .75); }
    .metric:nth-child(4) .signal { background: #829cb5; box-shadow: none; }

    .observation-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 318px;
      align-items: start;
      gap: 28px;
    }
    .content-panel, .filter-panel, .note-panel, .step-panel, .service-panel, .cta-panel {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(13, 38, 63, .72);
      box-shadow: var(--shadow);
    }
    .content-panel { overflow: hidden; }
    .feature-observation {
      display: grid;
      grid-template-columns: 43% 57%;
      min-height: 292px;
      border-bottom: 1px solid var(--line);
    }
    .feature-image {
      position: relative;
      min-height: 292px;
      overflow: hidden;
      background: var(--panel-2);
    }
    .feature-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: .85;
    }
    .feature-image::after {
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, transparent 55%, rgba(13,38,63,.7));
      content: "";
    }
    .image-caption {
      position: absolute;
      right: 15px;
      bottom: 13px;
      left: 15px;
      z-index: 1;
      color: #d8e9ee;
      font-size: 12px;
    }
    .feature-copy { padding: 31px 32px; }
    .tag-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
    .tag, .status-badge {
      display: inline-flex;
      align-items: center;
      min-height: 25px;
      padding: 2px 9px;
      border: 1px solid var(--line-strong);
      border-radius: 6px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .08);
      font-size: 12px;
      line-height: 1.4;
    }
    .status-badge.mint { color: var(--mint); border-color: rgba(142,228,193,.35); background: rgba(142,228,193,.08); }
    .status-badge.warm { color: var(--amber); border-color: rgba(243,189,104,.35); background: rgba(243,189,104,.08); }
    .feature-copy h3 {
      margin: 17px 0 10px;
      color: var(--white);
      font-size: 25px;
      line-height: 1.4;
    }
    .feature-copy p { margin: 0 0 19px; color: var(--muted); font-size: 14px; }
    .meta-line {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      color: var(--muted-2);
      font-size: 12px;
    }
    .observation-list { padding: 9px 28px 5px; }
    .observation-row {
      display: grid;
      grid-template-columns: 96px minmax(0, 1fr) auto;
      align-items: center;
      gap: 18px;
      min-height: 82px;
      border-bottom: 1px solid var(--line);
    }
    .observation-row:last-child { border-bottom: 0; }
    .row-kind { color: var(--cyan); font-size: 12px; font-weight: 700; }
    .row-content h4 { margin: 0; color: var(--white); font-size: 16px; line-height: 1.45; }
    .row-content p { margin: 4px 0 0; color: var(--muted-2); font-size: 12px; }
    .row-arrow {
      display: inline-grid;
      width: 30px;
      height: 30px;
      place-items: center;
      border: 1px solid var(--line);
      border-radius: 7px;
      color: var(--muted);
      transition: all .2s ease;
    }
    .observation-row:hover .row-arrow {
      color: var(--cyan);
      border-color: var(--line-strong);
      background: rgba(57,213,230,.1);
      transform: translateX(3px);
    }

    .filter-panel {
      position: sticky;
      top: 102px;
      padding: 23px;
    }
    .filter-panel h3, .note-panel h3 {
      margin: 0 0 7px;
      font-size: 19px;
      line-height: 1.4;
    }
    .filter-panel > p, .note-panel p { margin: 0 0 18px; color: var(--muted); font-size: 13px; }
    .filter-label {
      display: block;
      margin: 15px 0 7px;
      color: #c9dbe2;
      font-size: 13px;
      font-weight: 700;
    }
    .filter-panel select, .filter-panel input, .help-form input, .help-form select, .help-form textarea {
      width: 100%;
      min-height: 43px;
      margin: 0;
      padding: 8px 11px;
      border: 1px solid var(--line);
      border-radius: 8px;
      outline: 0;
      color: var(--white);
      background: rgba(7,18,31,.76);
      box-shadow: none;
      font-size: 13px;
    }
    .filter-panel select:focus, .filter-panel input:focus, .help-form input:focus, .help-form select:focus, .help-form textarea:focus {
      border-color: var(--cyan);
      box-shadow: 0 0 0 3px rgba(57,213,230,.12);
    }
    option { color: var(--ink); }
    .filter-actions { display: flex; gap: 8px; margin-top: 20px; }
    .button {
      display: inline-flex;
      min-height: 43px;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 9px 17px;
      border: 1px solid transparent;
      border-radius: 8px;
      color: var(--ink);
      background: var(--cyan);
      box-shadow: 0 7px 22px rgba(57, 213, 230, .2);
      font-size: 14px;
      font-weight: 800;
      line-height: 1.3;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
    }
    .button:hover {
      color: var(--ink);
      background: #62e1ed;
      box-shadow: 0 10px 28px rgba(57, 213, 230, .32);
      transform: translateY(-2px);
    }
    .button:active { transform: translateY(0); }
    .button.secondary {
      color: var(--white);
      border-color: var(--line-strong);
      background: rgba(57,213,230,.07);
      box-shadow: none;
    }
    .button.secondary:hover { color: var(--white); background: rgba(57,213,230,.15); }
    .button.small { min-height: 35px; padding: 7px 12px; font-size: 12px; }
    .button.full { width: 100%; }
    .note-panel {
      margin-top: 18px;
      padding: 21px 23px;
      border-color: rgba(243,189,104,.25);
      background: rgba(61, 49, 31, .28);
    }
    .note-panel h3 { color: var(--amber); }
    .note-list { margin: 0; padding: 0; list-style: none; }
    .note-list li {
      position: relative;
      padding: 8px 0 8px 18px;
      border-bottom: 1px solid rgba(243,189,104,.12);
      color: var(--muted);
      font-size: 13px;
    }
    .note-list li:last-child { border-bottom: 0; }
    .note-list li::before {
      position: absolute;
      top: 18px;
      left: 0;
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--amber);
      content: "";
    }

    .trend-board {
      display: grid;
      grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
      gap: 0;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--panel);
      box-shadow: var(--shadow);
    }
    .trend-copy { padding: 32px; border-right: 1px solid var(--line); }
    .trend-copy h3 { margin: 10px 0 12px; font-size: 26px; line-height: 1.35; }
    .trend-copy p { margin: 0; color: var(--muted); font-size: 14px; }
    .trend-highlight {
      display: inline-flex;
      align-items: baseline;
      gap: 8px;
      margin-top: 27px;
      color: var(--white);
    }
    .trend-highlight strong { color: var(--cyan); font-size: 38px; line-height: 1; }
    .trend-highlight span { color: var(--muted); font-size: 13px; }
    .trend-bars { padding: 30px 32px; }
    .bar-item { margin-bottom: 20px; }
    .bar-item:last-child { margin-bottom: 0; }
    .bar-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 7px; color: #c9dbe2; font-size: 13px; }
    .bar-top em { color: var(--muted); font-style: normal; font-size: 12px; }
    .bar-track { height: 7px; overflow: hidden; border-radius: 5px; background: rgba(255,255,255,.08); }
    .bar-fill { height: 100%; border-radius: inherit; background: var(--cyan); box-shadow: 0 0 13px rgba(57,213,230,.45); }
    .bar-fill.mint { background: var(--mint); box-shadow: 0 0 13px rgba(142,228,193,.4); }
    .bar-fill.amber { background: var(--amber); box-shadow: 0 0 13px rgba(243,189,104,.4); }

    .steps {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1px;
      overflow: hidden;
      border: 1px solid var(--line);
      background: var(--line);
      border-radius: var(--radius);
    }
    .step-panel {
      min-height: 205px;
      padding: 27px;
      border: 0;
      border-radius: 0;
      box-shadow: none;
      background: rgba(13,38,63,.92);
    }
    .step-number {
      display: inline-flex;
      width: 34px;
      height: 34px;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--line-strong);
      border-radius: 8px;
      color: var(--cyan);
      background: rgba(57,213,230,.08);
      font-size: 13px;
      font-weight: 800;
    }
    .step-panel h3 { margin: 19px 0 7px; font-size: 18px; }
    .step-panel p { margin: 0; color: var(--muted); font-size: 13px; }

    .service-panel {
      display: grid;
      grid-template-columns: 38% 62%;
      overflow: hidden;
    }
    .service-image { min-height: 330px; background: var(--panel-2); }
    .service-image img { width: 100%; height: 100%; object-fit: cover; }
    .service-copy { padding: 34px 36px; }
    .service-copy h2 { margin: 9px 0 14px; font-size: 29px; line-height: 1.35; }
    .service-copy > p { margin: 0 0 20px; color: var(--muted); font-size: 14px; }
    .service-points { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 24px; margin: 0 0 24px; padding: 0; list-style: none; }
    .service-points li { position: relative; padding-left: 20px; color: #c7d9df; font-size: 13px; }
    .service-points li::before {
      position: absolute;
      top: 10px;
      left: 0;
      width: 7px;
      height: 7px;
      border: 1px solid var(--cyan);
      border-radius: 2px;
      content: "";
      transform: rotate(45deg);
    }

    .accordion {
      margin: 0;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      background: rgba(13,38,63,.72);
      box-shadow: var(--shadow);
    }
    .accordion-item { border-bottom: 1px solid var(--line); background: transparent; }
    .accordion-item:last-child { border-bottom: 0; }
    .accordion-title {
      display: block;
      padding: 20px 53px 20px 24px;
      border: 0;
      color: var(--white);
      background: transparent;
      font-size: 16px;
      font-weight: 700;
    }
    .accordion-title::before { right: 24px; color: var(--cyan); }
    .accordion-title:hover, .accordion-item.is-active .accordion-title { color: var(--cyan); background: rgba(57,213,230,.06); }
    .accordion-content {
      padding: 0 52px 20px 24px;
      border: 0;
      color: var(--muted);
      background: transparent;
      font-size: 14px;
    }
    .cta-panel {
      position: relative;
      overflow: hidden;
      padding: 39px 43px;
      border-color: var(--line-strong);
      background:
        linear-gradient(100deg, rgba(13,38,63,.95), rgba(16,47,77,.7)),
        url("/assets/images/backpic/back-3.webp") center / cover;
      box-shadow: var(--glow);
    }
    .cta-panel::before {
      position: absolute;
      top: -60px;
      right: 9%;
      width: 180px;
      height: 180px;
      border: 1px solid rgba(57,213,230,.22);
      border-radius: 50%;
      content: "";
    }
    .cta-content { position: relative; z-index: 1; max-width: 760px; }
    .cta-panel h2 { margin: 9px 0 10px; font-size: 31px; line-height: 1.35; }
    .cta-panel p { margin: 0 0 22px; color: #c4d8df; font-size: 15px; }
    .cta-actions { display: flex; flex-wrap: wrap; gap: 10px; }

    .site-footer {
      padding: 52px 0 23px;
      border-top: 1px solid var(--line);
      background: rgba(5, 14, 25, .85);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.7fr 1fr 1fr;
      gap: 50px;
      padding-bottom: 39px;
    }
    .footer-brand .brand { margin-bottom: 16px; }
    .footer-brand p { max-width: 430px; margin: 0; color: var(--muted); font-size: 13px; }
    .footer-title { margin: 4px 0 14px; color: var(--white); font-size: 14px; }
    .footer-links { margin: 0; padding: 0; list-style: none; }
    .footer-links li { margin: 7px 0; }
    .footer-links a { color: var(--muted); font-size: 13px; }
    .footer-links a:hover { color: var(--cyan); text-decoration: underline; text-underline-offset: 4px; }
    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding-top: 19px;
      border-top: 1px solid var(--line);
      color: var(--muted-2);
      font-size: 12px;
    }
    .footer-records { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
    .footer-records a { color: var(--muted); }
    .footer-records a:hover { color: var(--cyan); }

    @media (max-width: 1050px) {
      .nav-row { gap: 15px; }
      .main-nav { gap: 8px; }
      .nav-link { padding-inline: 8px; font-size: 13px; }
      .phase-nav { padding-left: 9px; }
      .banner-grid { gap: 34px; }
    }
    @media (max-width: 820px) {
      .container { width: min(calc(100% - 30px), var(--max)); }
      .menu-toggle { display: inline-flex; margin-left: auto; }
      .main-nav {
        position: absolute;
        top: 76px;
        right: 15px;
        left: 15px;
        display: none;
        align-items: stretch;
        flex-direction: column;
        padding: 14px;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: rgba(7,18,31,.98);
        box-shadow: var(--shadow);
      }
      .site-header.nav-open .main-nav { display: flex; }
      .nav-links { flex-wrap: wrap; }
      .nav-link { flex: 1 0 auto; justify-content: center; }
      .phase-nav {
        overflow-x: auto;
        justify-content: flex-start;
        padding: 12px 0 0;
        border-top: 1px solid var(--line);
        border-left: 0;
      }
      .banner-grid, .observation-layout, .trend-board, .service-panel { grid-template-columns: 1fr; }
      .banner-side { max-width: 520px; }
      .trend-copy { border-right: 0; border-bottom: 1px solid var(--line); }
      .filter-panel { position: static; }
      .service-image { min-height: 240px; }
      .metric-strip { grid-template-columns: repeat(2, 1fr); }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      .steps { grid-template-columns: 1fr; }
      .step-panel { min-height: auto; }
    }
    @media (max-width: 560px) {
      body { font-size: 15px; }
      .notice-inner { align-items: flex-start; flex-direction: column; gap: 0; padding: 6px 0; }
      .page-banner { padding: 42px 0 35px; }
      .page-banner h1 { font-size: 35px; }
      .banner-copy { font-size: 16px; }
      main { padding-top: 34px; }
      .section { margin-top: 53px; }
      .section-head { display: block; }
      .section-intro { margin-top: 10px; }
      .metric { min-height: 115px; padding: 17px 16px; }
      .metric-value { font-size: 25px; }
      .metric .signal { top: 20px; right: 16px; }
      .feature-observation { display: block; }
      .feature-image { min-height: 205px; }
      .feature-copy { padding: 25px 21px; }
      .observation-list { padding-inline: 18px; }
      .observation-row { grid-template-columns: 73px minmax(0, 1fr) auto; gap: 9px; min-height: 93px; }
      .row-content h4 { font-size: 14px; }
      .row-content p { line-height: 1.5; }
      .trend-copy, .trend-bars, .service-copy { padding: 25px 21px; }
      .service-image { min-height: 195px; }
      .service-points { grid-template-columns: 1fr; gap: 9px; }
      .accordion-title { padding-left: 18px; padding-right: 45px; font-size: 14px; }
      .accordion-content { padding-left: 18px; padding-right: 35px; }
      .cta-panel { padding: 30px 22px; }
      .cta-panel h2 { font-size: 26px; }
      .cta-actions .button { width: 100%; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px 18px; }
      .footer-brand { grid-column: 1 / -1; }
      .footer-bottom { display: block; }
      .footer-records { margin-top: 12px; gap: 9px 14px; }
    }

/* roulang page: category4 */
:root {
      --ink: #07121f;
      --ink-2: #0a1c2f;
      --panel: #0d263f;
      --panel-2: #102f4d;
      --cyan: #39d5e6;
      --cyan-deep: #1599b0;
      --mint: #8ee4c1;
      --amber: #f3bd68;
      --red: #f07878;
      --paper: #f1f6f8;
      --white: #f8fbfc;
      --muted: #9fb6c5;
      --muted-2: #7894a7;
      --line: rgba(188, 226, 236, .16);
      --line-strong: rgba(87, 213, 230, .38);
      --radius: 14px;
      --radius-sm: 9px;
      --shadow: 0 18px 45px rgba(0, 0, 0, .23);
      --glow: 0 0 0 1px rgba(57, 213, 230, .22), 0 10px 30px rgba(29, 181, 207, .16);
      --max: 1200px;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      overflow-x: hidden;
      color: var(--white);
      background:
        radial-gradient(circle at 78% 7%, rgba(31, 139, 161, .16), transparent 27rem),
        radial-gradient(circle at 4% 58%, rgba(21, 153, 176, .1), transparent 25rem),
        var(--ink);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    body::before {
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      opacity: .22;
      content: "";
      background-image:
        linear-gradient(rgba(96, 177, 194, .08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 177, 194, .08) 1px, transparent 1px);
      background-size: 72px 72px;
      mask-image: linear-gradient(to bottom, #000, transparent 80%);
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, border-color .2s ease, background-color .2s ease, opacity .2s ease;
    }

    a:hover {
      color: var(--cyan);
    }

    img {
      display: block;
      max-width: 100%;
    }

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

    button,
    a {
      -webkit-tap-highlight-color: transparent;
    }

    button {
      cursor: pointer;
    }

    input,
    select,
    textarea {
      width: 100%;
      height: auto;
      margin: 0;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      color: var(--white);
      background: rgba(5, 17, 29, .78);
      box-shadow: none;
      transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }

    input,
    select {
      min-height: 48px;
      padding: 11px 13px;
    }

    textarea {
      min-height: 130px;
      padding: 12px 13px;
      resize: vertical;
    }

    input::placeholder,
    textarea::placeholder {
      color: var(--muted-2);
    }

    input:focus,
    select:focus,
    textarea:focus,
    button:focus-visible,
    a:focus-visible {
      outline: 2px solid var(--cyan);
      outline-offset: 3px;
      border-color: var(--cyan);
      box-shadow: 0 0 0 4px rgba(57, 213, 230, .1);
    }

    select {
      padding-right: 35px;
      background-color: rgba(5, 17, 29, .78);
      background-image:
        linear-gradient(45deg, transparent 50%, var(--cyan) 50%),
        linear-gradient(135deg, var(--cyan) 50%, transparent 50%);
      background-position:
        calc(100% - 18px) 21px,
        calc(100% - 13px) 21px;
      background-size: 5px 5px, 5px 5px;
      background-repeat: no-repeat;
    }

    select option {
      color: var(--white);
      background: var(--ink-2);
    }

    ::selection {
      color: var(--ink);
      background: var(--cyan);
    }

    .container {
      width: min(calc(100% - 40px), var(--max));
      margin-inline: auto;
    }

    .skip-link {
      position: fixed;
      top: 12px;
      left: 12px;
      z-index: 100;
      padding: 9px 14px;
      border-radius: 7px;
      color: var(--ink);
      background: var(--cyan);
      font-weight: 700;
      transform: translateY(-150%);
    }

    .skip-link:focus {
      transform: translateY(0);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 30;
      border-bottom: 1px solid var(--line);
      background: rgba(7, 18, 31, .88);
      backdrop-filter: blur(18px);
    }

    .nav-row {
      display: flex;
      min-height: 76px;
      align-items: center;
      gap: 26px;
    }

    .brand {
      display: inline-flex;
      flex: 0 0 auto;
      align-items: center;
      gap: 11px;
      color: var(--white);
      font-size: 22px;
      font-weight: 800;
      letter-spacing: 0;
    }

    .brand:hover {
      color: var(--white);
    }

    .brand-mark {
      display: grid;
      width: 34px;
      height: 34px;
      place-items: center;
      border: 1px solid rgba(57, 213, 230, .6);
      border-radius: 10px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .1);
      box-shadow: 0 0 22px rgba(57, 213, 230, .19);
      font-size: 17px;
    }

    .main-nav {
      display: flex;
      min-width: 0;
      flex: 1;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .nav-links {
      display: flex;
      min-width: 0;
      align-items: center;
      gap: 4px;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      height: 40px;
      align-items: center;
      padding: 0 12px;
      border-radius: 8px;
      color: var(--muted);
      font-size: 14px;
      white-space: nowrap;
    }

    .nav-link::after {
      position: absolute;
      right: 12px;
      bottom: 3px;
      left: 12px;
      height: 2px;
      background: var(--cyan);
      content: "";
      opacity: 0;
      transform: scaleX(.3);
      transition: opacity .2s ease, transform .2s ease;
    }

    .nav-link:hover,
    .nav-link.active {
      color: var(--white);
      background: rgba(57, 213, 230, .08);
    }

    .nav-link.active::after {
      opacity: 1;
      transform: scaleX(1);
    }

    .phase-nav {
      display: flex;
      flex: 0 0 auto;
      align-items: center;
      gap: 6px;
      padding-left: 16px;
      border-left: 1px solid var(--line);
    }

    .phase-chip {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 6px 9px;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--muted);
      font-size: 12px;
      white-space: nowrap;
    }

    .phase-chip:hover,
    .phase-chip.active {
      color: var(--white);
      border-color: var(--line-strong);
      background: rgba(57, 213, 230, .1);
    }

    .phase-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
    }

    .phase-chip.warm .phase-dot {
      background: var(--amber);
      box-shadow: 0 0 10px rgba(243, 189, 104, .7);
    }

    .phase-chip.live .phase-dot {
      background: var(--mint);
      box-shadow: 0 0 10px rgba(142, 228, 193, .8);
    }

    .phase-chip.replay .phase-dot {
      background: #829cb5;
    }

    .menu-toggle {
      display: none;
      flex: 0 0 auto;
      align-items: center;
      gap: 8px;
      border: 1px solid var(--line);
      border-radius: 8px;
      padding: 8px 11px;
      color: var(--white);
      background: rgba(255, 255, 255, .04);
    }

    .menu-toggle-lines,
    .menu-toggle-lines::before,
    .menu-toggle-lines::after {
      display: block;
      width: 18px;
      height: 2px;
      border-radius: 2px;
      background: var(--cyan);
      content: "";
    }

    .menu-toggle-lines {
      position: relative;
    }

    .menu-toggle-lines::before {
      position: absolute;
      top: -6px;
      left: 0;
    }

    .menu-toggle-lines::after {
      position: absolute;
      top: 6px;
      left: 0;
    }

    .status-strip {
      border-bottom: 1px solid var(--line);
      background: rgba(10, 28, 47, .86);
    }

    .status-inner {
      display: flex;
      min-height: 38px;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      color: var(--muted);
      font-size: 12px;
    }

    .status-message {
      display: flex;
      align-items: center;
      gap: 9px;
    }

    .status-message::before {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--mint);
      box-shadow: 0 0 9px rgba(142, 228, 193, .65);
      content: "";
    }

    .status-links {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .status-links a {
      color: #c0d5de;
    }

    .status-links a:hover {
      color: var(--cyan);
    }

    .breadcrumb-wrap {
      padding: 22px 0 0;
    }

    .breadcrumbs {
      margin: 0;
      color: var(--muted-2);
      background: transparent;
    }

    .breadcrumbs li,
    .breadcrumbs a {
      color: var(--muted-2);
      font-size: 12px;
    }

    .breadcrumbs a:hover {
      color: var(--cyan);
    }

    .breadcrumbs li:not(:last-child)::after {
      color: rgba(159, 182, 197, .45);
    }

    .page-hero {
      position: relative;
      overflow: hidden;
      padding: 48px 0 76px;
    }

    .page-hero::before {
      position: absolute;
      top: 5%;
      right: -8%;
      width: 480px;
      height: 480px;
      border-radius: 50%;
      background: rgba(57, 213, 230, .08);
      filter: blur(80px);
      content: "";
      pointer-events: none;
    }

    .page-hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 7fr) minmax(340px, 5fr);
      align-items: center;
      gap: 66px;
    }

    .eyebrow,
    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--cyan);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .12em;
    }

    .eyebrow::before,
    .section-kicker::before {
      width: 28px;
      height: 1px;
      background: currentColor;
      content: "";
    }

    .page-hero h1 {
      max-width: 760px;
      margin: 17px 0 20px;
      color: var(--white);
      font-size: clamp(36px, 5vw, 61px);
      font-weight: 800;
      line-height: 1.18;
      letter-spacing: 0;
    }

    .page-lead {
      max-width: 700px;
      margin: 0;
      color: #bed0d9;
      font-size: 18px;
      line-height: 1.9;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 30px;
    }

    .button {
      display: inline-flex;
      min-height: 48px;
      align-items: center;
      justify-content: center;
      gap: 9px;
      margin: 0;
      padding: 12px 19px;
      border: 1px solid transparent;
      border-radius: 10px;
      font-weight: 700;
      line-height: 1.2;
      transition: transform .2s ease, box-shadow .2s ease, color .2s ease, border-color .2s ease, background .2s ease;
    }

    .button svg {
      width: 18px;
      height: 18px;
      fill: none;
      stroke: currentColor;
      stroke-width: 1.8;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .button.primary {
      color: #031116;
      background: var(--cyan);
      box-shadow: 0 0 0 1px rgba(57, 213, 230, .18), 0 10px 27px rgba(57, 213, 230, .2);
    }

    .button.primary:hover,
    .button.primary:focus {
      color: #031116;
      background: #69e4ef;
      box-shadow: 0 0 0 1px rgba(57, 213, 230, .25), 0 13px 33px rgba(57, 213, 230, .28);
      transform: translateY(-2px);
    }

    .button.secondary {
      color: var(--white);
      border-color: var(--line-strong);
      background: rgba(15, 48, 77, .46);
    }

    .button.secondary:hover,
    .button.secondary:focus {
      color: var(--white);
      border-color: var(--cyan);
      background: rgba(57, 213, 230, .1);
      transform: translateY(-2px);
    }

    .button.quiet {
      min-height: 42px;
      padding: 9px 14px;
      color: var(--muted);
      border-color: var(--line);
      background: transparent;
      font-size: 14px;
    }

    .button.quiet:hover {
      color: var(--white);
      border-color: var(--line-strong);
      background: rgba(57, 213, 230, .07);
    }

    .button:disabled,
    .button.disabled {
      cursor: not-allowed;
      opacity: .45;
      transform: none;
      box-shadow: none;
    }

    .hero-points {
      display: flex;
      flex-wrap: wrap;
      gap: 14px 24px;
      margin: 26px 0 0;
      padding: 0;
      list-style: none;
      color: var(--muted);
      font-size: 13px;
    }

    .hero-points li {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .hero-points li::before {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--mint);
      content: "";
    }

    .hero-visual {
      position: relative;
      min-height: 440px;
    }

    .hero-image-shell {
      position: absolute;
      top: 4px;
      right: 0;
      width: 94%;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--panel);
      box-shadow: var(--shadow);
      transform: rotate(1.5deg);
    }

    .hero-image-shell::after {
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(7, 18, 31, .92), transparent 58%);
      content: "";
    }

    .hero-image-shell img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
    }

    .image-label {
      position: absolute;
      right: 20px;
      bottom: 18px;
      left: 20px;
      z-index: 2;
    }

    .image-label span {
      display: inline-flex;
      margin-bottom: 8px;
      padding: 4px 8px;
      border: 1px solid rgba(57, 213, 230, .3);
      border-radius: 6px;
      color: var(--cyan);
      background: rgba(7, 18, 31, .68);
      font-size: 11px;
    }

    .image-label strong {
      display: block;
      color: var(--white);
      font-size: 17px;
      line-height: 1.45;
    }

    .floating-summary {
      position: absolute;
      z-index: 4;
      right: -18px;
      bottom: 2px;
      width: 285px;
      padding: 18px;
      border: 1px solid var(--line-strong);
      border-radius: 12px;
      background: rgba(10, 28, 47, .89);
      box-shadow: var(--glow);
      backdrop-filter: blur(16px);
    }

    .floating-summary-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding-bottom: 11px;
      border-bottom: 1px solid var(--line);
    }

    .floating-summary-header strong {
      font-size: 14px;
    }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 8px;
      border: 1px solid rgba(142, 228, 193, .3);
      border-radius: 7px;
      color: var(--mint);
      background: rgba(142, 228, 193, .08);
      font-size: 11px;
      font-weight: 700;
    }

    .summary-lines {
      display: grid;
      gap: 9px;
      margin-top: 13px;
    }

    .summary-line {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      color: var(--muted);
      font-size: 12px;
    }

    .summary-line b {
      color: var(--white);
      font-weight: 600;
    }

    .section {
      position: relative;
      padding: 82px 0;
    }

    .section.section-deep {
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
      background: rgba(8, 24, 40, .72);
    }

    .section-heading {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 40px;
      margin-bottom: 34px;
    }

    .section-heading-copy {
      max-width: 730px;
    }

    .section-heading h2 {
      margin: 12px 0 0;
      color: var(--white);
      font-size: clamp(28px, 3.5vw, 43px);
      font-weight: 800;
      line-height: 1.25;
    }

    .section-heading p {
      max-width: 520px;
      margin: 0;
      color: var(--muted);
    }

    .tool-workspace {
      display: grid;
      grid-template-columns: minmax(0, 1.45fr) minmax(300px, .55fr);
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(13, 38, 63, .62);
      box-shadow: var(--shadow);
      backdrop-filter: blur(14px);
    }

    .workspace-main {
      padding: 30px;
      border-right: 1px solid var(--line);
    }

    .workspace-aside {
      display: flex;
      flex-direction: column;
      padding: 30px;
      background: rgba(7, 18, 31, .38);
    }

    .workspace-title-row {
      display: flex;
      align-items: start;
      justify-content: space-between;
      gap: 22px;
      margin-bottom: 25px;
    }

    .workspace-title-row h3,
    .workspace-aside h3 {
      margin: 0;
      color: var(--white);
      font-size: 22px;
      font-weight: 750;
    }

    .workspace-title-row p,
    .workspace-aside > p {
      margin: 7px 0 0;
      color: var(--muted);
      font-size: 14px;
    }

    .demo-badge {
      display: inline-flex;
      flex: 0 0 auto;
      align-items: center;
      gap: 7px;
      padding: 6px 9px;
      border: 1px solid rgba(243, 189, 104, .28);
      border-radius: 7px;
      color: var(--amber);
      background: rgba(243, 189, 104, .07);
      font-size: 11px;
      font-weight: 700;
    }

    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .field-group {
      min-width: 0;
    }

    .field-group.full {
      grid-column: 1 / -1;
    }

    .field-label {
      display: block;
      margin-bottom: 7px;
      color: #dbe8ed;
      font-size: 13px;
      font-weight: 700;
    }

    .field-help {
      display: block;
      margin-top: 6px;
      color: var(--muted-2);
      font-size: 11px;
    }

    .date-range {
      display: grid;
      grid-template-columns: 1fr 25px 1fr;
      align-items: center;
      gap: 8px;
    }

    .date-divider {
      color: var(--muted-2);
      text-align: center;
    }

    .filter-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .filter-chip {
      position: relative;
    }

    .filter-chip input {
      position: absolute;
      opacity: 0;
      pointer-events: none;
    }

    .filter-chip span {
      display: inline-flex;
      min-height: 38px;
      align-items: center;
      padding: 7px 12px;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--muted);
      background: rgba(5, 17, 29, .45);
      cursor: pointer;
      transition: color .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
    }

    .filter-chip span:hover {
      color: var(--white);
      border-color: var(--line-strong);
    }

    .filter-chip input:checked + span {
      color: var(--white);
      border-color: var(--cyan);
      background: rgba(57, 213, 230, .12);
      box-shadow: inset 0 0 0 1px rgba(57, 213, 230, .08);
    }

    .filter-chip input:focus-visible + span {
      outline: 2px solid var(--cyan);
      outline-offset: 3px;
    }

    .form-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
      padding-top: 22px;
      border-top: 1px solid var(--line);
    }

    .result-panel {
      display: flex;
      min-height: 280px;
      flex: 1;
      flex-direction: column;
      margin-top: 20px;
      padding: 20px;
      border: 1px dashed rgba(188, 226, 236, .2);
      border-radius: 11px;
      background: rgba(5, 17, 29, .38);
    }

    .empty-state {
      display: grid;
      min-height: 238px;
      place-items: center;
      text-align: center;
    }

    .empty-icon {
      display: grid;
      width: 54px;
      height: 54px;
      margin: 0 auto 14px;
      place-items: center;
      border: 1px solid var(--line-strong);
      border-radius: 13px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .07);
    }

    .empty-icon svg {
      width: 25px;
      height: 25px;
      fill: none;
      stroke: currentColor;
      stroke-width: 1.7;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .empty-state strong {
      display: block;
      color: var(--white);
      font-size: 15px;
    }

    .empty-state p {
      max-width: 240px;
      margin: 7px auto 0;
      color: var(--muted-2);
      font-size: 12px;
    }

    .generated-result {
      display: none;
    }

    .generated-result.is-visible {
      display: block;
    }

    .generated-result h4 {
      margin: 0 0 13px;
      color: var(--white);
      font-size: 16px;
    }

    .result-list {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .result-list li {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      padding: 9px 0;
      border-bottom: 1px solid var(--line);
      color: var(--muted);
      font-size: 13px;
    }

    .result-list li:last-child {
      border-bottom: 0;
    }

    .result-list strong {
      color: var(--white);
      text-align: right;
    }

    .result-note {
      margin: 16px 0 0;
      padding: 11px;
      border-left: 2px solid var(--amber);
      color: #c9d7dd;
      background: rgba(243, 189, 104, .06);
      font-size: 12px;
    }

    .tool-mosaic {
      display: grid;
      grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
      grid-template-areas:
        "primary secondary"
        "primary tertiary"
        "guide guide";
      gap: 18px;
    }

    .tool-card {
      position: relative;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      color: var(--white);
      background: rgba(13, 38, 63, .58);
      transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
    }

    .tool-card:hover {
      color: var(--white);
      border-color: var(--line-strong);
      box-shadow: var(--glow);
      transform: translateY(-3px);
    }

    .tool-card-primary {
      grid-area: primary;
      min-height: 430px;
      padding: 34px;
      background:
        linear-gradient(135deg, rgba(13, 38, 63, .96), rgba(7, 18, 31, .72)),
        url("/assets/images/backpic/back-2.webp") center / cover;
    }

    .tool-card-secondary,
    .tool-card-tertiary {
      min-height: 206px;
      padding: 25px;
    }

    .tool-card-secondary {
      grid-area: secondary;
    }

    .tool-card-tertiary {
      grid-area: tertiary;
    }

    .tool-guide-panel {
      grid-area: guide;
      display: grid;
      grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
      align-items: center;
      gap: 28px;
      padding: 28px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--ink-2);
    }

    .tool-icon {
      display: grid;
      width: 48px;
      height: 48px;
      margin-bottom: 24px;
      place-items: center;
      border: 1px solid rgba(57, 213, 230, .38);
      border-radius: 11px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .09);
    }

    .tool-icon svg {
      width: 24px;
      height: 24px;
      fill: none;
      stroke: currentColor;
      stroke-width: 1.7;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .tool-number {
      position: absolute;
      top: 20px;
      right: 22px;
      color: rgba(159, 182, 197, .45);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .12em;
    }

    .tool-card h3 {
      max-width: 480px;
      margin: 0 0 11px;
      color: var(--white);
      font-size: 25px;
      font-weight: 750;
      line-height: 1.35;
    }

    .tool-card-secondary h3,
    .tool-card-tertiary h3 {
      font-size: 20px;
    }

    .tool-card p {
      max-width: 550px;
      margin: 0;
      color: var(--muted);
    }

    .tool-card-primary p {
      font-size: 16px;
    }

    .tool-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 24px;
    }

    .tool-tag,
    .content-tag {
      display: inline-flex;
      align-items: center;
      padding: 5px 8px;
      border: 1px solid var(--line);
      border-radius: 7px;
      color: #b7ccd5;
      background: rgba(7, 18, 31, .42);
      font-size: 11px;
    }

    .tool-link {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      margin-top: 25px;
      color: var(--cyan);
      font-size: 14px;
      font-weight: 700;
    }

    .tool-link::after {
      content: "→";
      transition: transform .2s ease;
    }

    .tool-card:hover .tool-link::after {
      transform: translateX(4px);
    }

    .guide-copy h3 {
      margin: 0 0 10px;
      color: var(--white);
      font-size: 21px;
      font-weight: 750;
    }

    .guide-copy p {
      margin: 0;
      color: var(--muted);
    }

    .guide-points {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .guide-points li {
      padding: 4px 18px;
      border-left: 1px solid var(--line);
    }

    .guide-points b {
      display: block;
      color: var(--cyan);
      font-size: 20px;
      line-height: 1.2;
    }

    .guide-points span {
      display: block;
      margin-top: 6px;
      color: var(--muted);
      font-size: 12px;
    }

    .scenario-layout {
      display: grid;
      grid-template-columns: minmax(320px, .82fr) minmax(0, 1.18fr);
      align-items: stretch;
      gap: 34px;
    }

    .scenario-media {
      position: relative;
      min-height: 560px;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--panel);
      box-shadow: var(--shadow);
    }

    .scenario-media img {
      width: 100%;
      height: 100%;
      min-height: 560px;
      object-fit: cover;
    }

    .scenario-media::after {
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(7, 18, 31, .96), rgba(7, 18, 31, .08) 66%);
      content: "";
    }

    .scenario-caption {
      position: absolute;
      right: 28px;
      bottom: 25px;
      left: 28px;
      z-index: 2;
    }

    .scenario-caption span {
      color: var(--cyan);
      font-size: 12px;
      font-weight: 700;
    }

    .scenario-caption strong {
      display: block;
      margin-top: 7px;
      color: var(--white);
      font-size: 23px;
      line-height: 1.4;
    }

    .scenario-caption p {
      margin: 9px 0 0;
      color: #bdd0d9;
      font-size: 13px;
    }

    .scenario-list {
      border-top: 1px solid var(--line);
    }

    .scenario-item {
      display: grid;
      grid-template-columns: 58px minmax(0, 1fr) auto;
      align-items: start;
      gap: 20px;
      padding: 25px 6px;
      border-bottom: 1px solid var(--line);
      transition: background .2s ease, padding .2s ease;
    }

    .scenario-item:hover {
      padding-right: 16px;
      padding-left: 16px;
      background: rgba(57, 213, 230, .04);
    }

    .scenario-index {
      display: grid;
      width: 42px;
      height: 42px;
      place-items: center;
      border: 1px solid var(--line);
      border-radius: 9px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .06);
      font-size: 12px;
      font-weight: 800;
    }

    .scenario-item h3 {
      margin: 0 0 7px;
      color: var(--white);
      font-size: 19px;
      font-weight: 750;
    }

    .scenario-item p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .scenario-link {
      display: inline-flex;
      align-items: center;
      margin-top: 4px;
      color: var(--cyan);
      font-size: 13px;
      white-space: nowrap;
    }

    .process-line {
      position: relative;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 0;
      margin-top: 42px;
    }

    .process-line::before {
      position: absolute;
      top: 24px;
      right: 11%;
      left: 11%;
      height: 1px;
      background: linear-gradient(90deg, var(--cyan), rgba(57, 213, 230, .15));
      content: "";
    }

    .process-step {
      position: relative;
      z-index: 2;
      padding: 0 23px;
      text-align: left;
    }

    .step-dot {
      display: grid;
      width: 49px;
      height: 49px;
      margin-bottom: 22px;
      place-items: center;
      border: 1px solid var(--line-strong);
      border-radius: 12px;
      color: var(--cyan);
      background: var(--ink-2);
      box-shadow: 0 0 0 7px var(--ink);
      font-size: 13px;
      font-weight: 800;
    }

    .process-step h3 {
      margin: 0 0 8px;
      color: var(--white);
      font-size: 18px;
      font-weight: 750;
    }

    .process-step p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
    }

    .boundary-panel {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(13, 38, 63, .54);
      box-shadow: var(--shadow);
    }

    .boundary-copy {
      padding: 38px;
    }

    .boundary-copy h2 {
      margin: 12px 0 16px;
      color: var(--white);
      font-size: clamp(27px, 3.5vw, 40px);
      font-weight: 800;
      line-height: 1.3;
    }

    .boundary-copy > p {
      margin: 0;
      color: var(--muted);
    }

    .boundary-list {
      display: grid;
      gap: 13px;
      margin: 27px 0 0;
      padding: 0;
      list-style: none;
    }

    .boundary-list li {
      display: grid;
      grid-template-columns: 25px 1fr;
      gap: 11px;
      color: #c7d6dd;
    }

    .boundary-check {
      display: grid;
      width: 21px;
      height: 21px;
      margin-top: 3px;
      place-items: center;
      border: 1px solid rgba(142, 228, 193, .35);
      border-radius: 6px;
      color: var(--mint);
      background: rgba(142, 228, 193, .07);
      font-size: 12px;
    }

    .boundary-aside {
      padding: 38px;
      border-left: 1px solid var(--line);
      background:
        linear-gradient(rgba(7, 18, 31, .77), rgba(7, 18, 31, .92)),
        url("/assets/images/backpic/back-3.webp") center / cover;
    }

    .boundary-aside h3 {
      margin: 0 0 18px;
      color: var(--white);
      font-size: 20px;
      font-weight: 750;
    }

    .boundary-facts {
      margin: 0;
    }

    .boundary-fact {
      padding: 15px 0;
      border-bottom: 1px solid var(--line);
    }

    .boundary-fact:last-child {
      border-bottom: 0;
    }

    .boundary-fact dt {
      color: var(--muted-2);
      font-size: 12px;
      font-weight: 500;
    }

    .boundary-fact dd {
      margin: 4px 0 0;
      color: var(--white);
      font-size: 14px;
    }

    .faq-layout {
      display: grid;
      grid-template-columns: minmax(250px, .38fr) minmax(0, .62fr);
      align-items: start;
      gap: 60px;
    }

    .faq-intro {
      position: sticky;
      top: 118px;
    }

    .faq-intro h2 {
      margin: 12px 0 14px;
      color: var(--white);
      font-size: clamp(29px, 3.5vw, 42px);
      font-weight: 800;
      line-height: 1.3;
    }

    .faq-intro p {
      margin: 0;
      color: var(--muted);
    }

    .faq-intro .button {
      margin-top: 23px;
    }

    .accordion.faq-list {
      margin: 0;
      border: 0;
      background: transparent;
    }

    .faq-list .accordion-item {
      margin-bottom: 10px;
      border: 1px solid var(--line);
      border-radius: 11px;
      background: rgba(13, 38, 63, .46);
      overflow: hidden;
      transition: border-color .2s ease, background .2s ease;
    }

    .faq-list .accordion-item:hover,
    .faq-list .accordion-item.is-active {
      border-color: var(--line-strong);
      background: rgba(13, 38, 63, .7);
    }

    .faq-list .accordion-title {
      padding: 20px 54px 20px 20px;
      border: 0;
      color: var(--white);
      font-size: 16px;
      font-weight: 700;
      line-height: 1.55;
      background: transparent;
    }

    .faq-list .accordion-title:hover,
    .faq-list .accordion-title:focus {
      color: var(--cyan);
      background: transparent;
    }

    .faq-list .accordion-title::before {
      right: 20px;
      margin-top: -11px;
      color: var(--cyan);
      font-size: 22px;
    }

    .faq-list .accordion-content {
      padding: 0 20px 21px;
      border: 0;
      color: var(--muted);
      background: transparent;
      font-size: 14px;
    }

    .faq-list .accordion-content p {
      margin: 0;
    }

    .final-cta {
      padding: 0 0 86px;
    }

    .cta-panel {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      align-items: center;
      gap: 36px;
      overflow: hidden;
      padding: 42px;
      border: 1px solid var(--line-strong);
      border-radius: var(--radius);
      background:
        radial-gradient(circle at 86% 20%, rgba(57, 213, 230, .17), transparent 17rem),
        rgba(13, 38, 63, .72);
      box-shadow: var(--glow);
    }

    .cta-panel::before {
      position: absolute;
      top: -52px;
      right: 20%;
      width: 120px;
      height: 120px;
      border: 1px solid rgba(57, 213, 230, .13);
      border-radius: 50%;
      content: "";
    }

    .cta-panel h2 {
      position: relative;
      margin: 0 0 10px;
      color: var(--white);
      font-size: clamp(27px, 3.5vw, 41px);
      font-weight: 800;
      line-height: 1.3;
    }

    .cta-panel p {
      position: relative;
      max-width: 700px;
      margin: 0;
      color: var(--muted);
    }

    .cta-actions {
      position: relative;
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 10px;
    }

    .site-footer {
      border-top: 1px solid var(--line);
      background: #05101c;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.5fr) minmax(160px, .55fr) minmax(160px, .55fr);
      gap: 65px;
      padding: 62px 0 42px;
    }

    .footer-brand p {
      max-width: 520px;
      margin: 18px 0 0;
      color: var(--muted);
      font-size: 14px;
    }

    .footer-title {
      margin: 4px 0 17px;
      color: var(--white);
      font-size: 14px;
      font-weight: 750;
    }

    .footer-links {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 9px;
    }

    .footer-links a {
      color: var(--muted);
      font-size: 13px;
    }

    .footer-links a:hover {
      color: var(--cyan);
    }

    .footer-bottom {
      display: flex;
      min-height: 76px;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
      border-top: 1px solid var(--line);
      color: var(--muted-2);
      font-size: 12px;
    }

    .footer-records {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 10px 18px;
    }

    .footer-records a:hover {
      color: var(--cyan);
    }

    .back-to-top {
      position: fixed;
      right: 22px;
      bottom: 22px;
      z-index: 16;
      display: grid;
      width: 42px;
      height: 42px;
      place-items: center;
      border: 1px solid var(--line-strong);
      border-radius: 10px;
      color: var(--cyan);
      background: rgba(7, 18, 31, .9);
      box-shadow: var(--glow);
      opacity: 0;
      pointer-events: none;
      transform: translateY(8px);
      transition: opacity .2s ease, transform .2s ease, background .2s ease;
    }

    .back-to-top.is-visible {
      opacity: 1;
      pointer-events: auto;
      transform: translateY(0);
    }

    .back-to-top:hover {
      color: var(--white);
      background: var(--panel);
    }

    .back-to-top svg {
      width: 19px;
      height: 19px;
      fill: none;
      stroke: currentColor;
      stroke-width: 2;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    @media screen and (max-width: 1100px) {
      .nav-row {
        gap: 16px;
      }

      .nav-link {
        padding-right: 8px;
        padding-left: 8px;
        font-size: 13px;
      }

      .phase-nav {
        padding-left: 10px;
      }

      .phase-chip {
        padding-right: 7px;
        padding-left: 7px;
      }

      .page-hero-grid {
        gap: 42px;
      }

      .floating-summary {
        right: 0;
      }

      .tool-workspace {
        grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
      }

      .scenario-layout {
        grid-template-columns: minmax(290px, .72fr) minmax(0, 1.28fr);
      }
    }

    @media screen and (max-width: 960px) {
      .nav-row {
        min-height: 68px;
        justify-content: space-between;
      }

      .menu-toggle {
        display: inline-flex;
      }

      .main-nav {
        position: absolute;
        top: 68px;
        right: 0;
        left: 0;
        display: none;
        max-height: calc(100vh - 68px);
        overflow-y: auto;
        padding: 16px 20px 20px;
        border-bottom: 1px solid var(--line);
        background: rgba(7, 18, 31, .98);
        box-shadow: var(--shadow);
      }

      .main-nav.is-open {
        display: block;
      }

      .nav-links {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 7px;
      }

      .nav-link {
        justify-content: center;
        padding: 0 10px;
        border: 1px solid transparent;
      }

      .nav-link.active {
        border-color: var(--line-strong);
      }

      .phase-nav {
        max-width: 100%;
        overflow-x: auto;
        margin-top: 14px;
        padding: 14px 0 0;
        border-top: 1px solid var(--line);
        border-left: 0;
        scrollbar-width: thin;
      }

      .phase-chip {
        padding: 7px 11px;
      }

      .page-hero-grid {
        grid-template-columns: 1fr;
      }

      .page-hero {
        padding-bottom: 60px;
      }

      .hero-visual {
        min-height: 410px;
      }

      .hero-image-shell {
        right: 3%;
        left: 3%;
        width: auto;
        transform: rotate(.8deg);
      }

      .floating-summary {
        right: 1%;
      }

      .section-heading {
        display: block;
      }

      .section-heading p {
        margin-top: 15px;
      }

      .tool-workspace {
        grid-template-columns: 1fr;
      }

      .workspace-main {
        border-right: 0;
        border-bottom: 1px solid var(--line);
      }

      .tool-mosaic {
        grid-template-columns: 1fr 1fr;
        grid-template-areas:
          "primary primary"
          "secondary tertiary"
          "guide guide";
      }

      .tool-card-primary {
        min-height: 360px;
      }

      .scenario-layout {
        grid-template-columns: 1fr;
      }

      .scenario-media,
      .scenario-media img {
        min-height: 430px;
      }

      .process-line {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        row-gap: 42px;
      }

      .process-line::before {
        display: none;
      }

      .boundary-panel {
        grid-template-columns: 1fr;
      }

      .boundary-aside {
        border-top: 1px solid var(--line);
        border-left: 0;
      }

      .faq-layout {
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .faq-intro {
        position: static;
      }

      .cta-panel {
        grid-template-columns: 1fr;
      }

      .cta-actions {
        justify-content: flex-start;
      }

      .footer-grid {
        grid-template-columns: 1.35fr .65fr .65fr;
        gap: 35px;
      }
    }

    @media screen and (max-width: 760px) {
      .container {
        width: min(calc(100% - 28px), var(--max));
      }

      .status-inner {
        min-height: 42px;
      }

      .status-links {
        display: none;
      }

      .breadcrumb-wrap {
        padding-top: 16px;
      }

      .page-hero {
        padding-top: 36px;
      }

      .page-hero h1 {
        font-size: clamp(34px, 10vw, 48px);
      }

      .page-lead {
        font-size: 16px;
      }

      .hero-visual {
        min-height: 360px;
      }

      .floating-summary {
        right: 0;
        bottom: -6px;
        width: 255px;
      }

      .section {
        padding: 64px 0;
      }

      .section-heading {
        margin-bottom: 27px;
      }

      .workspace-main,
      .workspace-aside {
        padding: 23px;
      }

      .form-grid {
        grid-template-columns: 1fr;
      }

      .field-group.full {
        grid-column: auto;
      }

      .tool-mosaic {
        grid-template-columns: 1fr;
        grid-template-areas:
          "primary"
          "secondary"
          "tertiary"
          "guide";
      }

      .tool-card-primary {
        min-height: 390px;
        padding: 27px;
      }

      .tool-card-secondary,
      .tool-card-tertiary {
        min-height: auto;
      }

      .tool-guide-panel {
        grid-template-columns: 1fr;
      }

      .guide-points {
        border-top: 1px solid var(--line);
        padding-top: 18px;
      }

      .guide-points li:first-child {
        border-left: 0;
        padding-left: 0;
      }

      .scenario-item {
        grid-template-columns: 48px minmax(0, 1fr);
      }

      .scenario-link {
        grid-column: 2;
        margin-top: -8px;
      }

      .boundary-copy,
      .boundary-aside {
        padding: 28px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }

      .footer-brand {
        grid-column: 1 / -1;
      }

      .footer-bottom {
        display: block;
        padding: 20px 0;
      }

      .footer-records {
        justify-content: flex-start;
        margin-top: 10px;
      }
    }

    @media screen and (max-width: 520px) {
      .brand {
        font-size: 19px;
      }

      .brand-mark {
        width: 31px;
        height: 31px;
      }

      .menu-toggle {
        font-size: 13px;
      }

      .nav-links {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .page-hero {
        padding-bottom: 50px;
      }

      .hero-actions,
      .form-actions,
      .cta-actions {
        display: grid;
        grid-template-columns: 1fr;
      }

      .hero-actions .button,
      .form-actions .button,
      .cta-actions .button {
        width: 100%;
      }

      .hero-points {
        display: grid;
        gap: 9px;
      }

      .hero-visual {
        min-height: 320px;
      }

      .hero-image-shell {
        right: 0;
        left: 0;
      }

      .hero-image-shell img {
        aspect-ratio: 5 / 4;
      }

      .floating-summary {
        right: 7px;
        bottom: -20px;
        width: calc(100% - 32px);
      }

      .workspace-title-row {
        display: block;
      }

      .demo-badge {
        margin-top: 13px;
      }

      .workspace-main,
      .workspace-aside {
        padding: 19px;
      }

      .date-range {
        grid-template-columns: 1fr;
      }

      .date-divider {
        display: none;
      }

      .filter-chips {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .filter-chip span {
        justify-content: center;
      }

      .tool-card-primary {
        min-height: 410px;
        padding: 23px;
      }

      .tool-guide-panel {
        padding: 23px;
      }

      .guide-points {
        grid-template-columns: 1fr;
      }

      .guide-points li {
        padding: 12px 0;
        border-top: 1px solid var(--line);
        border-left: 0;
      }

      .guide-points li:first-child {
        border-top: 0;
      }

      .scenario-media,
      .scenario-media img {
        min-height: 390px;
      }

      .scenario-caption {
        right: 20px;
        bottom: 20px;
        left: 20px;
      }

      .scenario-item {
        gap: 12px;
      }

      .process-line {
        grid-template-columns: 1fr;
      }

      .process-step {
        display: grid;
        grid-template-columns: 49px 1fr;
        column-gap: 16px;
        padding: 0;
      }

      .step-dot {
        grid-row: 1 / span 2;
        margin: 0;
        box-shadow: none;
      }

      .process-step h3 {
        align-self: end;
      }

      .boundary-copy,
      .boundary-aside {
        padding: 23px;
      }

      .cta-panel {
        padding: 28px 23px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 27px;
        padding-top: 46px;
      }

      .footer-brand {
        grid-column: auto;
      }

      .footer-records {
        display: grid;
        gap: 6px;
      }

      .back-to-top {
        right: 14px;
        bottom: 14px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      html {
        scroll-behavior: auto;
      }

      *,
      *::before,
      *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
      }
    }

/* roulang page: category3 */
:root {
      --ink: #07121f;
      --ink-2: #0a1c2f;
      --panel: #0d263f;
      --panel-2: #102f4d;
      --cyan: #39d5e6;
      --cyan-deep: #1599b0;
      --mint: #8ee4c1;
      --amber: #f3bd68;
      --red: #f07878;
      --paper: #f1f6f8;
      --white: #f8fbfc;
      --muted: #9fb6c5;
      --muted-2: #7894a7;
      --line: rgba(188, 226, 236, .16);
      --line-strong: rgba(87, 213, 230, .38);
      --radius: 14px;
      --radius-sm: 9px;
      --shadow: 0 18px 45px rgba(0, 0, 0, .23);
      --glow: 0 0 0 1px rgba(57, 213, 230, .22), 0 10px 30px rgba(29, 181, 207, .16);
      --max: 1200px;
      --section-space: 92px;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      overflow-x: hidden;
      color: var(--white);
      background:
        radial-gradient(circle at 78% 7%, rgba(31, 139, 161, .16), transparent 27rem),
        var(--ink);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    body::before {
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      opacity: .22;
      content: "";
      background-image:
        linear-gradient(rgba(96, 177, 194, .08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 177, 194, .08) 1px, transparent 1px);
      background-size: 72px 72px;
      mask-image: linear-gradient(to bottom, #000, transparent 75%);
    }

    body,
    h1,
    h2,
    h3,
    h4,
    p,
    ul,
    ol,
    figure {
      padding: 0;
    }

    h1,
    h2,
    h3,
    h4 {
      margin-top: 0;
      color: var(--white);
      font-weight: 800;
      line-height: 1.28;
      letter-spacing: 0;
    }

    p {
      margin-top: 0;
      color: var(--muted);
    }

    ul,
    ol {
      margin-top: 0;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, border-color .2s ease, background-color .2s ease, transform .2s ease;
    }

    a:hover {
      color: var(--cyan);
    }

    img {
      display: block;
      width: 100%;
      max-width: 100%;
    }

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

    button,
    a {
      -webkit-tap-highlight-color: transparent;
    }

    button {
      cursor: pointer;
    }

    button:focus-visible,
    a:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible {
      outline: 3px solid rgba(57, 213, 230, .48);
      outline-offset: 3px;
    }

    ::selection {
      color: var(--ink);
      background: var(--cyan);
    }

    .container {
      width: min(calc(100% - 40px), var(--max));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      border-bottom: 1px solid var(--line);
      background: rgba(7, 18, 31, .88);
      backdrop-filter: blur(18px);
    }

    .nav-row {
      display: flex;
      min-height: 76px;
      align-items: center;
      gap: 26px;
    }

    .brand {
      display: inline-flex;
      flex: 0 0 auto;
      align-items: center;
      gap: 11px;
      color: var(--white);
      font-size: 22px;
      font-weight: 800;
      letter-spacing: 0;
    }

    .brand:hover {
      color: var(--white);
    }

    .brand-mark {
      display: grid;
      width: 34px;
      height: 34px;
      place-items: center;
      border: 1px solid rgba(57, 213, 230, .6);
      border-radius: 10px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .1);
      box-shadow: 0 0 22px rgba(57, 213, 230, .19);
      font-size: 17px;
    }

    .main-nav {
      display: flex;
      min-width: 0;
      flex: 1;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .nav-links {
      display: flex;
      min-width: 0;
      align-items: center;
      gap: 4px;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      height: 40px;
      align-items: center;
      padding: 0 12px;
      border-radius: 8px;
      color: var(--muted);
      font-size: 14px;
      white-space: nowrap;
    }

    .nav-link::after {
      position: absolute;
      right: 12px;
      bottom: 3px;
      left: 12px;
      height: 2px;
      background: var(--cyan);
      content: "";
      opacity: 0;
      transform: scaleX(.3);
      transition: opacity .2s ease, transform .2s ease;
    }

    .nav-link:hover,
    .nav-link.active {
      color: var(--white);
      background: rgba(57, 213, 230, .08);
    }

    .nav-link.active::after {
      opacity: 1;
      transform: scaleX(1);
    }

    .phase-nav {
      display: flex;
      flex: 0 0 auto;
      align-items: center;
      gap: 6px;
      padding-left: 16px;
      border-left: 1px solid var(--line);
    }

    .phase-chip {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 6px 9px;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--muted);
      font-size: 12px;
      white-space: nowrap;
    }

    .phase-chip:hover,
    .phase-chip.active {
      color: var(--white);
      border-color: var(--line-strong);
      background: rgba(57, 213, 230, .1);
    }

    .phase-dot {
      width: 7px;
      height: 7px;
      flex: 0 0 auto;
      border-radius: 50%;
    }

    .phase-chip.warm .phase-dot {
      background: var(--amber);
      box-shadow: 0 0 10px rgba(243, 189, 104, .7);
    }

    .phase-chip.live .phase-dot {
      background: var(--mint);
      box-shadow: 0 0 10px rgba(142, 228, 193, .8);
    }

    .phase-chip.replay .phase-dot {
      background: #829cb5;
    }

    .menu-toggle {
      display: none;
      width: 42px;
      height: 40px;
      margin-left: auto;
      padding: 0;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--white);
      background: rgba(255, 255, 255, .04);
    }

    .menu-toggle:hover {
      border-color: var(--line-strong);
      background: rgba(57, 213, 230, .09);
    }

    .menu-icon {
      position: relative;
      display: block;
      width: 18px;
      height: 2px;
      margin: auto;
      background: currentColor;
    }

    .menu-icon::before,
    .menu-icon::after {
      position: absolute;
      left: 0;
      width: 18px;
      height: 2px;
      background: currentColor;
      content: "";
    }

    .menu-icon::before {
      top: -6px;
    }

    .menu-icon::after {
      top: 6px;
    }

    .status-bar {
      border-bottom: 1px solid var(--line);
      background: rgba(13, 38, 63, .64);
    }

    .status-inner {
      display: flex;
      min-height: 39px;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      color: var(--muted);
      font-size: 12px;
    }

    .status-message {
      display: flex;
      align-items: center;
      gap: 9px;
    }

    .status-pulse {
      width: 7px;
      height: 7px;
      flex: 0 0 auto;
      border-radius: 50%;
      background: var(--mint);
      box-shadow: 0 0 12px rgba(142, 228, 193, .75);
    }

    .breadcrumb-line {
      display: flex;
      align-items: center;
      gap: 7px;
      color: var(--muted-2);
    }

    .breadcrumb-line a:hover {
      color: var(--cyan);
    }

    .topic-hero {
      position: relative;
      min-height: 650px;
      overflow: hidden;
      border-bottom: 1px solid var(--line);
      background:
        linear-gradient(90deg, rgba(7, 18, 31, .97) 0%, rgba(7, 18, 31, .85) 43%, rgba(7, 18, 31, .32) 100%),
        linear-gradient(0deg, rgba(7, 18, 31, .94) 0%, transparent 45%),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    }

    .topic-hero::after {
      position: absolute;
      right: 0;
      bottom: 0;
      left: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--cyan), transparent);
      content: "";
      opacity: .72;
    }

    .topic-hero-inner {
      position: relative;
      z-index: 2;
      display: flex;
      min-height: 650px;
      flex-direction: column;
      justify-content: space-between;
      padding: 82px 0 34px;
    }

    .hero-copy {
      width: min(760px, 100%);
    }

    .eyebrow,
    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--cyan);
      font-size: 12px;
      font-weight: 700;
    }

    .eyebrow::before,
    .section-kicker::before {
      width: 28px;
      height: 1px;
      background: currentColor;
      content: "";
    }

    .topic-hero h1 {
      max-width: 820px;
      margin: 20px 0 22px;
      font-size: clamp(40px, 5.6vw, 72px);
      line-height: 1.12;
    }

    .hero-lead {
      max-width: 680px;
      margin-bottom: 0;
      color: #c5d7df;
      font-size: 18px;
      line-height: 1.9;
    }

    .hero-actions,
    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 30px;
    }

    .button,
    .action-button {
      display: inline-flex;
      min-height: 46px;
      align-items: center;
      justify-content: center;
      gap: 9px;
      margin: 0;
      padding: 11px 19px;
      border: 1px solid transparent;
      border-radius: 9px;
      font-size: 14px;
      font-weight: 700;
      line-height: 1.4;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
    }

    .button.primary,
    .action-button.primary {
      color: #031318;
      border-color: var(--cyan);
      background: var(--cyan);
      box-shadow: 0 0 0 1px rgba(57, 213, 230, .15), 0 8px 28px rgba(57, 213, 230, .22);
    }

    .button.primary:hover,
    .action-button.primary:hover {
      color: #031318;
      background: #63e4ef;
      box-shadow: 0 0 0 1px rgba(99, 228, 239, .4), 0 12px 34px rgba(57, 213, 230, .3);
      transform: translateY(-2px);
    }

    .button.secondary,
    .action-button.secondary {
      color: var(--white);
      border-color: var(--line-strong);
      background: rgba(13, 38, 63, .54);
      backdrop-filter: blur(10px);
    }

    .button.secondary:hover,
    .action-button.secondary:hover {
      color: var(--white);
      border-color: var(--cyan);
      background: rgba(57, 213, 230, .1);
      transform: translateY(-2px);
    }

    .button.disabled,
    .button:disabled {
      cursor: not-allowed;
      opacity: .48;
      box-shadow: none;
      transform: none;
    }

    .button-symbol {
      font-size: 17px;
      line-height: 1;
    }

    .hero-index {
      display: grid;
      grid-template-columns: 1.3fr 1fr 1fr;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(7, 18, 31, .72);
      box-shadow: var(--shadow);
      backdrop-filter: blur(14px);
    }

    .hero-index-item {
      min-width: 0;
      padding: 17px 20px;
      border-right: 1px solid var(--line);
    }

    .hero-index-item:last-child {
      border-right: 0;
    }

    .hero-index-label {
      display: block;
      margin-bottom: 3px;
      color: var(--muted-2);
      font-size: 11px;
    }

    .hero-index-value {
      display: block;
      color: var(--white);
      font-size: 14px;
      font-weight: 700;
    }

    .section {
      padding: var(--section-space) 0;
    }

    .section.compact {
      padding: 72px 0;
    }

    .section-alt {
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
      background: rgba(10, 28, 47, .72);
    }

    .section-heading {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 34px;
      margin-bottom: 38px;
    }

    .section-heading-main {
      max-width: 740px;
    }

    .section-heading h2 {
      margin: 13px 0 12px;
      font-size: clamp(28px, 3.6vw, 44px);
    }

    .section-heading p {
      max-width: 680px;
      margin-bottom: 0;
      font-size: 16px;
    }

    .section-note {
      flex: 0 0 auto;
      padding-bottom: 8px;
      color: var(--muted-2);
      font-size: 12px;
    }

    .feature-stage {
      display: grid;
      grid-template-columns: minmax(0, 1.45fr) minmax(310px, .55fr);
      gap: 24px;
    }

    .feature-visual {
      position: relative;
      min-height: 510px;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }

    .feature-visual img {
      width: 100%;
      height: 100%;
      min-height: 510px;
      object-fit: cover;
    }

    .feature-overlay {
      position: absolute;
      inset: auto 0 0;
      padding: 120px 34px 30px;
      background: linear-gradient(to top, rgba(4, 14, 25, .97), rgba(4, 14, 25, .78) 55%, transparent);
    }

    .feature-overlay h3 {
      max-width: 700px;
      margin: 12px 0 10px;
      font-size: clamp(25px, 3vw, 38px);
    }

    .feature-overlay p {
      max-width: 690px;
      margin-bottom: 0;
      color: #bfd0d8;
    }

    .badge-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 9px;
      border: 1px solid var(--line);
      border-radius: 7px;
      color: var(--muted);
      background: rgba(7, 18, 31, .7);
      font-size: 11px;
      font-weight: 700;
    }

    .badge.cyan {
      color: var(--cyan);
      border-color: rgba(57, 213, 230, .36);
      background: rgba(57, 213, 230, .09);
    }

    .badge.amber {
      color: var(--amber);
      border-color: rgba(243, 189, 104, .32);
      background: rgba(243, 189, 104, .08);
    }

    .badge.mint {
      color: var(--mint);
      border-color: rgba(142, 228, 193, .28);
      background: rgba(142, 228, 193, .08);
    }

    .feature-aside {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .glass-panel {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(13, 38, 63, .62);
      box-shadow: var(--shadow);
      backdrop-filter: blur(14px);
    }

    .summary-panel {
      flex: 1;
      padding: 25px;
    }

    .summary-panel h3 {
      margin-bottom: 14px;
      font-size: 20px;
    }

    .summary-panel > p {
      font-size: 14px;
    }

    .summary-list {
      margin: 20px 0 0;
      list-style: none;
    }

    .summary-list li {
      position: relative;
      padding: 14px 0 14px 25px;
      border-top: 1px solid var(--line);
      color: #c8d8df;
      font-size: 14px;
    }

    .summary-list li::before {
      position: absolute;
      top: 22px;
      left: 2px;
      width: 8px;
      height: 8px;
      border: 2px solid var(--cyan);
      border-radius: 50%;
      content: "";
    }

    .topic-meta {
      display: grid;
      grid-template-columns: 1fr 1fr;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--ink-2);
    }

    .topic-meta div {
      padding: 17px;
    }

    .topic-meta div + div {
      border-left: 1px solid var(--line);
    }

    .topic-meta span {
      display: block;
      color: var(--muted-2);
      font-size: 11px;
    }

    .topic-meta strong {
      display: block;
      margin-top: 3px;
      color: var(--white);
      font-size: 14px;
    }

    .story-stack {
      display: flex;
      flex-direction: column;
      gap: 76px;
    }

    .story-row {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(0, .86fr);
      align-items: center;
      gap: 70px;
    }

    .story-row.reverse {
      grid-template-columns: minmax(0, .86fr) minmax(0, 1fr);
    }

    .story-row.reverse .story-media {
      order: 2;
    }

    .story-row.reverse .story-copy {
      order: 1;
    }

    .story-media {
      position: relative;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--panel);
      box-shadow: var(--shadow);
    }

    .story-media img {
      aspect-ratio: 16 / 10;
      object-fit: cover;
      transition: transform .45s ease;
    }

    .story-media:hover img {
      transform: scale(1.025);
    }

    .media-caption {
      position: absolute;
      right: 12px;
      bottom: 12px;
      left: 12px;
      padding: 10px 13px;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: #d5e2e7;
      background: rgba(7, 18, 31, .84);
      backdrop-filter: blur(10px);
      font-size: 12px;
    }

    .story-number {
      display: inline-grid;
      width: 42px;
      height: 42px;
      place-items: center;
      margin-bottom: 20px;
      border: 1px solid var(--line-strong);
      border-radius: 10px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .08);
      font-size: 13px;
      font-weight: 800;
    }

    .story-copy h3 {
      margin-bottom: 16px;
      font-size: clamp(25px, 3vw, 36px);
    }

    .story-copy p {
      margin-bottom: 16px;
    }

    .check-list {
      margin: 22px 0 0;
      list-style: none;
    }

    .check-list li {
      position: relative;
      margin-bottom: 11px;
      padding-left: 27px;
      color: #c5d5dc;
      font-size: 14px;
    }

    .check-list li::before {
      position: absolute;
      top: 2px;
      left: 0;
      color: var(--mint);
      content: "✓";
      font-weight: 800;
    }

    .directory-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.55fr) minmax(280px, .45fr);
      gap: 28px;
      align-items: start;
    }

    .directory-toolbar {
      display: flex;
      gap: 12px;
      margin-bottom: 18px;
    }

    .search-field {
      position: relative;
      flex: 1;
    }

    .search-field input {
      width: 100%;
      height: 48px;
      margin: 0;
      padding: 0 16px 0 43px;
      border: 1px solid var(--line);
      border-radius: 9px;
      color: var(--white);
      background: rgba(13, 38, 63, .72);
      box-shadow: none;
    }

    .search-field input::placeholder {
      color: var(--muted-2);
    }

    .search-field input:focus {
      border-color: var(--cyan);
      background: rgba(13, 38, 63, .92);
      box-shadow: 0 0 0 3px rgba(57, 213, 230, .1);
    }

    .search-icon {
      position: absolute;
      top: 50%;
      left: 16px;
      color: var(--cyan);
      transform: translateY(-50%);
      pointer-events: none;
    }

    .filter-tabs {
      display: flex;
      gap: 7px;
      margin-bottom: 22px;
      overflow-x: auto;
      scrollbar-width: thin;
    }

    .filter-button {
      flex: 0 0 auto;
      min-height: 38px;
      padding: 7px 13px;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--muted);
      background: transparent;
      font-size: 13px;
      font-weight: 700;
    }

    .filter-button:hover,
    .filter-button.active {
      color: var(--white);
      border-color: var(--line-strong);
      background: rgba(57, 213, 230, .1);
    }

    .directory-list {
      margin: 0;
      border-top: 1px solid var(--line);
      list-style: none;
    }

    .directory-item {
      display: grid;
      grid-template-columns: 54px minmax(0, 1fr) auto;
      align-items: center;
      gap: 20px;
      min-height: 132px;
      padding: 23px 8px;
      border-bottom: 1px solid var(--line);
      transition: background .2s ease, padding .2s ease;
    }

    .directory-item:hover {
      padding-right: 16px;
      padding-left: 16px;
      background: rgba(57, 213, 230, .045);
    }

    .directory-item[hidden] {
      display: none;
    }

    .directory-index {
      color: var(--muted-2);
      font-size: 13px;
      font-weight: 800;
    }

    .directory-content h3 {
      margin-bottom: 6px;
      font-size: 19px;
    }

    .directory-content p {
      max-width: 680px;
      margin-bottom: 10px;
      font-size: 13px;
    }

    .directory-link {
      display: inline-flex;
      width: 38px;
      height: 38px;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--cyan);
      background: rgba(13, 38, 63, .65);
      font-size: 18px;
    }

    .directory-link:hover {
      color: var(--ink);
      border-color: var(--cyan);
      background: var(--cyan);
      transform: translateX(2px);
    }

    .empty-message {
      display: none;
      padding: 30px 18px;
      border-bottom: 1px solid var(--line);
      color: var(--muted);
      text-align: center;
    }

    .empty-message.visible {
      display: block;
    }

    .directory-aside {
      position: sticky;
      top: 104px;
      padding: 25px;
    }

    .directory-aside h3 {
      margin-bottom: 13px;
      font-size: 20px;
    }

    .directory-aside p {
      font-size: 14px;
    }

    .stage-list {
      margin: 22px 0 0;
      list-style: none;
    }

    .stage-list li {
      display: grid;
      grid-template-columns: 18px 1fr;
      gap: 11px;
      padding: 13px 0;
      border-top: 1px solid var(--line);
    }

    .stage-mark {
      position: relative;
      width: 10px;
      height: 10px;
      margin-top: 8px;
      border: 2px solid var(--muted-2);
      border-radius: 50%;
    }

    .stage-list li:first-child .stage-mark {
      border-color: var(--amber);
      box-shadow: 0 0 9px rgba(243, 189, 104, .35);
    }

    .stage-list li:nth-child(2) .stage-mark {
      border-color: var(--mint);
      box-shadow: 0 0 9px rgba(142, 228, 193, .35);
    }

    .stage-list strong {
      display: block;
      color: var(--white);
      font-size: 14px;
    }

    .stage-list span {
      color: var(--muted-2);
      font-size: 12px;
    }

    .journey {
      position: relative;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 0;
      margin-top: 34px;
    }

    .journey::before {
      position: absolute;
      top: 23px;
      right: 11%;
      left: 11%;
      height: 1px;
      background: linear-gradient(90deg, var(--amber), var(--cyan), var(--mint), #829cb5);
      content: "";
      opacity: .52;
    }

    .journey-step {
      position: relative;
      padding: 0 24px;
      text-align: left;
    }

    .journey-dot {
      position: relative;
      z-index: 2;
      display: grid;
      width: 46px;
      height: 46px;
      place-items: center;
      margin-bottom: 22px;
      border: 1px solid var(--line-strong);
      border-radius: 11px;
      color: var(--cyan);
      background: var(--ink-2);
      box-shadow: 0 0 20px rgba(57, 213, 230, .12);
      font-size: 13px;
      font-weight: 800;
    }

    .journey-step:first-child .journey-dot {
      color: var(--amber);
      border-color: rgba(243, 189, 104, .42);
    }

    .journey-step:nth-child(3) .journey-dot {
      color: var(--mint);
      border-color: rgba(142, 228, 193, .4);
    }

    .journey-step:last-child .journey-dot {
      color: #a7b7c8;
      border-color: rgba(167, 183, 200, .36);
    }

    .journey-step h3 {
      margin-bottom: 8px;
      font-size: 17px;
    }

    .journey-step p {
      margin-bottom: 0;
      font-size: 13px;
    }

    .trust-layout {
      display: grid;
      grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr);
      gap: 56px;
      align-items: start;
    }

    .trust-intro {
      position: sticky;
      top: 112px;
    }

    .trust-intro h2 {
      margin: 14px 0 16px;
      font-size: clamp(28px, 3.4vw, 42px);
    }

    .trust-intro p {
      margin-bottom: 0;
    }

    .trust-points {
      border-top: 1px solid var(--line);
    }

    .trust-point {
      display: grid;
      grid-template-columns: 40px minmax(0, 1fr);
      gap: 20px;
      padding: 27px 0;
      border-bottom: 1px solid var(--line);
    }

    .trust-icon {
      display: grid;
      width: 40px;
      height: 40px;
      place-items: center;
      border: 1px solid var(--line);
      border-radius: 9px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .07);
      font-weight: 800;
    }

    .trust-point h3 {
      margin-bottom: 8px;
      font-size: 18px;
    }

    .trust-point p {
      margin-bottom: 0;
      font-size: 14px;
    }

    .notice-box {
      margin-top: 30px;
      padding: 19px 21px;
      border-left: 3px solid var(--amber);
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      color: #cfdae0;
      background: rgba(243, 189, 104, .07);
      font-size: 13px;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: minmax(260px, .45fr) minmax(0, 1.55fr);
      gap: 52px;
      align-items: start;
    }

    .faq-intro h2 {
      margin: 14px 0;
      font-size: clamp(28px, 3.4vw, 42px);
    }

    .faq-intro p {
      font-size: 14px;
    }

    .accordion {
      margin: 0;
      border: 0;
      border-top: 1px solid var(--line);
      background: transparent;
    }

    .accordion-item {
      border-bottom: 1px solid var(--line);
      background: transparent;
    }

    .accordion-title {
      padding: 23px 50px 23px 0;
      border: 0;
      color: var(--white);
      background: transparent;
      font-size: 16px;
      font-weight: 700;
      line-height: 1.55;
    }

    .accordion-title::before {
      right: 8px;
      margin-top: -12px;
      color: var(--cyan);
      font-size: 23px;
    }

    .accordion-title:hover,
    .accordion-title:focus {
      color: var(--cyan);
      background: transparent;
    }

    :last-child:not(.is-active) > .accordion-title {
      border-bottom: 0;
    }

    .accordion-content {
      padding: 0 45px 22px 0;
      border: 0;
      color: var(--muted);
      background: transparent;
      font-size: 14px;
      line-height: 1.85;
    }

    .accordion-content p:last-child {
      margin-bottom: 0;
    }

    .final-cta {
      padding: 0 0 92px;
    }

    .cta-panel {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1.3fr) auto;
      align-items: center;
      gap: 42px;
      overflow: hidden;
      padding: 45px 48px;
      border: 1px solid var(--line-strong);
      border-radius: var(--radius);
      background:
        linear-gradient(105deg, rgba(16, 47, 77, .96), rgba(9, 29, 47, .88)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      box-shadow: var(--glow);
    }

    .cta-panel::after {
      position: absolute;
      top: -45px;
      right: 20%;
      width: 190px;
      height: 1px;
      background: var(--cyan);
      box-shadow: 0 0 35px 12px rgba(57, 213, 230, .22);
      content: "";
      transform: rotate(-18deg);
    }

    .cta-panel h2 {
      margin-bottom: 11px;
      font-size: clamp(26px, 3.4vw, 40px);
    }

    .cta-panel p {
      max-width: 720px;
      margin-bottom: 0;
      color: #c4d6de;
    }

    .cta-panel .cta-actions {
      flex-wrap: nowrap;
      margin-top: 0;
    }

    .site-footer {
      padding: 66px 0 24px;
      border-top: 1px solid var(--line);
      background: #050e18;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.6fr) 1fr 1fr;
      gap: 70px;
      padding-bottom: 45px;
    }

    .footer-brand p {
      max-width: 510px;
      margin: 20px 0 0;
      color: var(--muted-2);
      font-size: 14px;
    }

    .footer-title {
      margin: 3px 0 18px;
      color: var(--white);
      font-size: 14px;
    }

    .footer-links {
      margin: 0;
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      color: var(--muted-2);
      font-size: 13px;
    }

    .footer-links a:hover {
      color: var(--cyan);
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding-top: 22px;
      border-top: 1px solid var(--line);
      color: #688397;
      font-size: 12px;
    }

    .footer-records {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 8px 16px;
    }

    .footer-records a:hover {
      color: var(--cyan);
    }

    .back-top {
      position: fixed;
      right: 22px;
      bottom: 22px;
      z-index: 18;
      display: grid;
      width: 42px;
      height: 42px;
      place-items: center;
      border: 1px solid var(--line-strong);
      border-radius: 9px;
      color: var(--cyan);
      background: rgba(7, 18, 31, .9);
      box-shadow: var(--shadow);
      opacity: 0;
      pointer-events: none;
      transform: translateY(8px);
      transition: opacity .2s ease, transform .2s ease, background .2s ease;
    }

    .back-top.visible {
      opacity: 1;
      pointer-events: auto;
      transform: translateY(0);
    }

    .back-top:hover {
      color: var(--ink);
      background: var(--cyan);
    }

    @media screen and (max-width: 1120px) {
      .nav-row {
        gap: 14px;
      }

      .nav-link {
        padding-right: 8px;
        padding-left: 8px;
        font-size: 13px;
      }

      .phase-nav {
        gap: 4px;
        padding-left: 10px;
      }

      .phase-chip {
        padding-right: 7px;
        padding-left: 7px;
      }

      .feature-stage {
        grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
      }
    }

    @media screen and (max-width: 960px) {
      :root {
        --section-space: 76px;
      }

      .nav-row {
        min-height: 68px;
        flex-wrap: wrap;
      }

      .menu-toggle {
        display: block;
      }

      .main-nav {
        display: none;
        width: 100%;
        flex: 0 0 100%;
        padding: 8px 0 17px;
      }

      .main-nav.is-open {
        display: block;
      }

      .nav-links {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
      }

      .nav-link {
        justify-content: center;
        border: 1px solid transparent;
      }

      .nav-link.active {
        border-color: var(--line);
      }

      .phase-nav {
        margin-top: 10px;
        padding: 10px 0 0;
        overflow-x: auto;
        border-top: 1px solid var(--line);
        border-left: 0;
      }

      .topic-hero,
      .topic-hero-inner {
        min-height: 590px;
      }

      .topic-hero {
        background-position: 62% center;
      }

      .feature-stage,
      .directory-layout,
      .trust-layout,
      .faq-wrap {
        grid-template-columns: 1fr;
      }

      .feature-aside {
        display: grid;
        grid-template-columns: 1.3fr .7fr;
      }

      .directory-aside,
      .trust-intro {
        position: static;
      }

      .story-row,
      .story-row.reverse {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
      }

      .journey {
        grid-template-columns: 1fr 1fr;
        gap: 34px 0;
      }

      .journey::before {
        display: none;
      }

      .cta-panel {
        grid-template-columns: 1fr;
      }

      .cta-panel .cta-actions {
        justify-content: flex-start;
      }

      .footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 38px;
      }

      .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
      }

      .footer-records {
        justify-content: flex-start;
      }
    }

    @media screen and (max-width: 720px) {
      .container {
        width: min(calc(100% - 30px), var(--max));
      }

      .status-inner {
        align-items: flex-start;
        flex-direction: column;
        gap: 3px;
        padding: 8px 0;
      }

      .topic-hero,
      .topic-hero-inner {
        min-height: 610px;
      }

      .topic-hero-inner {
        padding-top: 60px;
      }

      .topic-hero {
        background-image:
          linear-gradient(90deg, rgba(7, 18, 31, .96), rgba(7, 18, 31, .72)),
          linear-gradient(0deg, rgba(7, 18, 31, .96), transparent),
          url("/assets/images/backpic/back-2.webp");
      }

      .topic-hero h1 {
        font-size: 42px;
      }

      .hero-lead {
        font-size: 16px;
      }

      .hero-index {
        grid-template-columns: 1fr;
      }

      .hero-index-item {
        padding: 10px 14px;
        border-right: 0;
        border-bottom: 1px solid var(--line);
      }

      .hero-index-item:last-child {
        border-bottom: 0;
      }

      .section-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 6px;
      }

      .feature-stage,
      .feature-aside,
      .story-row,
      .story-row.reverse {
        grid-template-columns: 1fr;
      }

      .story-row.reverse .story-media,
      .story-row.reverse .story-copy {
        order: initial;
      }

      .feature-visual,
      .feature-visual img {
        min-height: 450px;
      }

      .feature-overlay {
        padding: 95px 22px 23px;
      }

      .story-stack {
        gap: 54px;
      }

      .directory-item {
        grid-template-columns: 38px minmax(0, 1fr) 36px;
        gap: 10px;
      }

      .journey-step {
        padding: 0 16px 0 0;
      }

      .cta-panel {
        padding: 34px 25px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }

      .footer-brand {
        grid-column: 1 / -1;
      }
    }

    @media screen and (max-width: 520px) {
      :root {
        --section-space: 62px;
      }

      .container {
        width: min(calc(100% - 24px), var(--max));
      }

      .brand {
        font-size: 19px;
      }

      .nav-links {
        grid-template-columns: 1fr 1fr;
      }

      .topic-hero h1 {
        font-size: 35px;
      }

      .hero-actions,
      .cta-actions {
        align-items: stretch;
        flex-direction: column;
      }

      .button,
      .action-button {
        width: 100%;
      }

      .section-heading h2,
      .trust-intro h2,
      .faq-intro h2 {
        font-size: 28px;
      }

      .feature-visual,
      .feature-visual img {
        min-height: 410px;
      }

      .feature-overlay h3 {
        font-size: 25px;
      }

      .story-media img {
        aspect-ratio: 4 / 3;
      }

      .directory-toolbar {
        flex-direction: column;
      }

      .directory-toolbar .button {
        width: 100%;
      }

      .directory-item {
        grid-template-columns: 30px minmax(0, 1fr);
        min-height: 0;
        padding: 20px 0;
      }

      .directory-link {
        display: none;
      }

      .journey {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .journey-step {
        display: grid;
        grid-template-columns: 46px minmax(0, 1fr);
        gap: 16px;
        padding: 0;
      }

      .journey-dot {
        margin-bottom: 0;
        grid-row: 1 / span 2;
      }

      .journey-step h3 {
        margin-top: 2px;
        margin-bottom: 3px;
      }

      .trust-point {
        gap: 14px;
      }

      .accordion-title {
        padding-right: 38px;
        font-size: 15px;
      }

      .accordion-content {
        padding-right: 10px;
      }

      .cta-panel .cta-actions {
        width: 100%;
        flex-direction: column;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }

      .footer-brand {
        grid-column: auto;
      }

      .footer-records {
        flex-direction: column;
        gap: 6px;
      }

      .back-top {
        right: 12px;
        bottom: 12px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      html {
        scroll-behavior: auto;
      }

      *,
      *::before,
      *::after {
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
      }
    }

/* roulang page: category5 */
:root {
      --ink: #07121f;
      --ink-2: #0a1c2f;
      --panel: #0d263f;
      --panel-2: #102f4d;
      --panel-3: #123753;
      --cyan: #39d5e6;
      --cyan-deep: #1599b0;
      --mint: #8ee4c1;
      --amber: #f3bd68;
      --red: #f07878;
      --paper: #f1f6f8;
      --white: #f8fbfc;
      --muted: #9fb6c5;
      --muted-2: #7894a7;
      --line: rgba(188, 226, 236, .16);
      --line-strong: rgba(87, 213, 230, .38);
      --radius: 14px;
      --radius-sm: 9px;
      --shadow: 0 18px 45px rgba(0, 0, 0, .23);
      --glow: 0 0 0 1px rgba(57, 213, 230, .22), 0 10px 30px rgba(29, 181, 207, .16);
      --max: 1200px;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      color: var(--white);
      background:
        radial-gradient(circle at 80% 6%, rgba(31, 139, 161, .15), transparent 28rem),
        var(--ink);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    body::before {
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      content: "";
      opacity: .2;
      background-image:
        linear-gradient(rgba(96, 177, 194, .08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 177, 194, .08) 1px, transparent 1px);
      background-size: 72px 72px;
      mask-image: linear-gradient(to bottom, #000, transparent 76%);
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
    }

    a:hover {
      color: var(--cyan);
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible {
      outline: 3px solid rgba(57, 213, 230, .65);
      outline-offset: 3px;
    }

    img {
      display: block;
      max-width: 100%;
    }

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

    button,
    a {
      -webkit-tap-highlight-color: transparent;
    }

    .container {
      width: min(calc(100% - 40px), var(--max));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 30;
      border-bottom: 1px solid var(--line);
      background: rgba(7, 18, 31, .9);
      backdrop-filter: blur(18px);
    }

    .nav-row {
      display: flex;
      min-height: 76px;
      align-items: center;
      gap: 26px;
    }

    .brand {
      display: inline-flex;
      flex: 0 0 auto;
      align-items: center;
      gap: 11px;
      color: var(--white);
      font-size: 22px;
      font-weight: 800;
      white-space: nowrap;
    }

    .brand:hover {
      color: var(--white);
    }

    .brand-mark {
      display: grid;
      width: 34px;
      height: 34px;
      place-items: center;
      border: 1px solid rgba(57, 213, 230, .6);
      border-radius: 10px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .1);
      box-shadow: 0 0 22px rgba(57, 213, 230, .19);
      font-size: 17px;
    }

    .main-nav {
      display: flex;
      min-width: 0;
      flex: 1;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .nav-links {
      display: flex;
      min-width: 0;
      align-items: center;
      gap: 4px;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      height: 40px;
      align-items: center;
      padding: 0 12px;
      border-radius: 8px;
      color: var(--muted);
      font-size: 14px;
      white-space: nowrap;
    }

    .nav-link::after {
      position: absolute;
      right: 12px;
      bottom: 3px;
      left: 12px;
      height: 2px;
      background: var(--cyan);
      content: "";
      opacity: 0;
      transform: scaleX(.3);
      transition: opacity .2s ease, transform .2s ease;
    }

    .nav-link:hover,
    .nav-link.active {
      color: var(--white);
      background: rgba(57, 213, 230, .08);
    }

    .nav-link.active::after {
      opacity: 1;
      transform: scaleX(1);
    }

    .phase-nav {
      display: flex;
      flex: 0 0 auto;
      align-items: center;
      gap: 6px;
      padding-left: 16px;
      border-left: 1px solid var(--line);
    }

    .phase-chip {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 6px 9px;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--muted);
      font-size: 12px;
      white-space: nowrap;
    }

    .phase-chip:hover,
    .phase-chip.active {
      color: var(--white);
      border-color: var(--line-strong);
      background: rgba(57, 213, 230, .1);
    }

    .phase-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: currentColor;
    }

    .phase-chip.warm .phase-dot {
      background: var(--amber);
      box-shadow: 0 0 10px rgba(243, 189, 104, .7);
    }

    .phase-chip.live .phase-dot {
      background: var(--mint);
      box-shadow: 0 0 10px rgba(142, 228, 193, .8);
    }

    .phase-chip.replay .phase-dot {
      background: #829cb5;
    }

    .menu-toggle {
      display: none;
      border: 1px solid var(--line);
      border-radius: 8px;
      padding: 7px 11px;
      color: var(--white);
      background: rgba(255, 255, 255, .04);
      cursor: pointer;
    }

    .announcement-bar {
      border-bottom: 1px solid var(--line);
      color: var(--muted);
      background: rgba(10, 28, 47, .74);
      font-size: 13px;
    }

    .announcement-inner {
      display: flex;
      min-height: 38px;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .announcement-inner p {
      margin: 0;
    }

    .announcement-mark {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--mint);
    }

    .announcement-mark::before {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--mint);
      box-shadow: 0 0 10px rgba(142, 228, 193, .75);
      content: "";
    }

    .announcement-link {
      color: var(--cyan);
      white-space: nowrap;
    }

    .page-hero {
      position: relative;
      overflow: hidden;
      padding: 72px 0 82px;
      border-bottom: 1px solid var(--line);
      background-image:
        linear-gradient(90deg, rgba(7, 18, 31, .98) 0%, rgba(7, 18, 31, .9) 43%, rgba(7, 18, 31, .55) 100%),
        url("/assets/images/backpic/back-2.webp");
      background-position: center;
      background-size: cover;
    }

    .page-hero::after {
      position: absolute;
      right: 0;
      bottom: 0;
      left: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--cyan), transparent);
      content: "";
      opacity: .7;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(370px, .78fr);
      align-items: center;
      gap: 68px;
    }

    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 9px;
      margin-bottom: 23px;
      color: var(--muted-2);
      font-size: 13px;
    }

    .breadcrumb a {
      color: var(--muted);
    }

    .breadcrumb a:hover {
      color: var(--cyan);
    }

    .breadcrumb-separator {
      color: var(--cyan-deep);
    }

    .eyebrow,
    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--cyan);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .12em;
    }

    .eyebrow::before,
    .section-kicker::before {
      width: 28px;
      height: 1px;
      background: currentColor;
      content: "";
    }

    .page-hero h1 {
      max-width: 680px;
      margin: 17px 0 21px;
      color: var(--white);
      font-size: 55px;
      font-weight: 800;
      line-height: 1.2;
    }

    .hero-lead {
      max-width: 650px;
      margin: 0;
      color: #c2d4dc;
      font-size: 18px;
      line-height: 1.9;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 29px;
    }

    .button {
      display: inline-flex;
      min-height: 46px;
      align-items: center;
      justify-content: center;
      gap: 8px;
      margin: 0;
      border: 1px solid transparent;
      border-radius: 9px;
      padding: 10px 18px;
      color: var(--ink);
      background: var(--cyan);
      box-shadow: 0 0 0 1px rgba(57, 213, 230, .1), 0 9px 22px rgba(22, 186, 209, .23);
      font-size: 14px;
      font-weight: 800;
      line-height: 1.3;
      cursor: pointer;
    }

    .button:hover {
      color: var(--ink);
      background: #68e2ee;
      box-shadow: 0 0 0 1px rgba(57, 213, 230, .32), 0 12px 28px rgba(22, 186, 209, .35);
      transform: translateY(-2px);
    }

    .button:active {
      transform: translateY(0);
      box-shadow: 0 0 0 1px rgba(57, 213, 230, .28), 0 5px 12px rgba(22, 186, 209, .2);
    }

    .button.secondary {
      border-color: var(--line-strong);
      color: var(--white);
      background: rgba(15, 45, 72, .7);
      box-shadow: none;
    }

    .button.secondary:hover {
      color: var(--white);
      background: rgba(57, 213, 230, .12);
      box-shadow: none;
    }

    .button.small {
      min-height: 38px;
      padding: 8px 13px;
      font-size: 13px;
    }

    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 20px;
      margin-top: 31px;
      padding-top: 18px;
      border-top: 1px solid var(--line);
      color: var(--muted-2);
      font-size: 12px;
    }

    .hero-meta strong {
      color: var(--muted);
      font-weight: 600;
    }

    .resource-card {
      position: relative;
      padding: 17px;
      border: 1px solid var(--line-strong);
      border-radius: var(--radius);
      background: rgba(13, 38, 63, .8);
      box-shadow: var(--shadow), var(--glow);
      backdrop-filter: blur(16px);
    }

    .resource-card::before {
      position: absolute;
      top: 15px;
      right: 15px;
      width: 72px;
      height: 72px;
      border-top: 1px solid rgba(57, 213, 230, .5);
      border-right: 1px solid rgba(57, 213, 230, .5);
      content: "";
      opacity: .8;
    }

    .resource-cover {
      position: relative;
      overflow: hidden;
      aspect-ratio: 1.55 / 1;
      border-radius: 10px;
      border: 1px solid rgba(188, 226, 236, .18);
      background: var(--ink-2);
    }

    .resource-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: .83;
    }

    .resource-cover::after {
      position: absolute;
      inset: 0;
      background: linear-gradient(0deg, rgba(7, 18, 31, .9), transparent 68%);
      content: "";
    }

    .cover-caption {
      position: absolute;
      right: 18px;
      bottom: 14px;
      left: 18px;
      z-index: 1;
    }

    .cover-caption small {
      display: block;
      margin-bottom: 3px;
      color: var(--cyan);
      font-size: 11px;
      letter-spacing: .1em;
    }

    .cover-caption strong {
      display: block;
      color: var(--white);
      font-size: 20px;
      line-height: 1.35;
    }

    .resource-content {
      padding: 18px 4px 3px;
    }

    .resource-content h2 {
      margin: 0 0 5px;
      color: var(--white);
      font-size: 20px;
      line-height: 1.4;
    }

    .resource-content p {
      margin: 0 0 14px;
      color: var(--muted);
      font-size: 13px;
    }

    .resource-list {
      margin: 0 0 17px;
      padding: 0;
      list-style: none;
    }

    .resource-list li {
      display: flex;
      align-items: baseline;
      gap: 10px;
      padding: 7px 0;
      border-bottom: 1px solid var(--line);
      color: #c8d8df;
      font-size: 13px;
    }

    .resource-list li:last-child {
      border-bottom: 0;
    }

    .resource-list span {
      color: var(--cyan);
      font-size: 11px;
      font-weight: 700;
    }

    .section {
      padding: 82px 0;
    }

    .section.compact {
      padding-top: 58px;
      padding-bottom: 58px;
    }

    .section-heading {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 25px;
      margin-bottom: 32px;
    }

    .section-heading h2 {
      max-width: 720px;
      margin: 10px 0 0;
      color: var(--white);
      font-size: 34px;
      line-height: 1.3;
    }

    .section-heading p {
      max-width: 415px;
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .guide-shell {
      display: grid;
      grid-template-columns: 275px minmax(0, 1fr);
      gap: 34px;
      align-items: start;
    }

    .guide-menu {
      position: sticky;
      top: 106px;
      padding: 13px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(10, 28, 47, .72);
    }

    .guide-menu-title {
      margin: 3px 10px 12px;
      color: var(--muted-2);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: .1em;
    }

    .guide-menu a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      min-height: 43px;
      border-left: 2px solid transparent;
      border-radius: 6px;
      padding: 8px 11px;
      color: var(--muted);
      font-size: 14px;
    }

    .guide-menu a span {
      color: var(--muted-2);
      font-size: 12px;
    }

    .guide-menu a:hover,
    .guide-menu a.active {
      border-left-color: var(--cyan);
      color: var(--white);
      background: rgba(57, 213, 230, .1);
    }

    .guide-menu a.active span {
      color: var(--cyan);
    }

    .guide-main {
      min-width: 0;
    }

    .feature-guide {
      display: grid;
      grid-template-columns: minmax(220px, .68fr) minmax(0, 1fr);
      gap: 26px;
      padding-bottom: 31px;
      border-bottom: 1px solid var(--line);
    }

    .feature-image {
      overflow: hidden;
      aspect-ratio: 1.4 / 1;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      background: var(--panel);
    }

    .feature-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .feature-copy {
      padding-top: 2px;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
    }

    .tag {
      display: inline-flex;
      min-height: 25px;
      align-items: center;
      border: 1px solid rgba(57, 213, 230, .3);
      border-radius: 6px;
      padding: 3px 8px;
      color: var(--cyan);
      background: rgba(57, 213, 230, .08);
      font-size: 11px;
      line-height: 1.35;
    }

    .tag.neutral {
      border-color: var(--line);
      color: var(--muted);
      background: rgba(255, 255, 255, .03);
    }

    .tag.warm {
      border-color: rgba(243, 189, 104, .34);
      color: var(--amber);
      background: rgba(243, 189, 104, .08);
    }

    .feature-copy h3 {
      margin: 0 0 11px;
      color: var(--white);
      font-size: 25px;
      line-height: 1.4;
    }

    .feature-copy p {
      margin: 0 0 17px;
      color: var(--muted);
      font-size: 14px;
    }

    .guide-list {
      margin-top: 8px;
    }

    .guide-list-item {
      display: grid;
      grid-template-columns: 62px minmax(0, 1fr) auto;
      gap: 20px;
      align-items: center;
      padding: 21px 0;
      border-bottom: 1px solid var(--line);
    }

    .guide-index {
      color: var(--cyan);
      font-size: 22px;
      font-weight: 800;
      line-height: 1;
    }

    .guide-list-item h3 {
      margin: 0 0 4px;
      color: var(--white);
      font-size: 17px;
      line-height: 1.45;
    }

    .guide-list-item p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.7;
    }

    .guide-arrow {
      display: inline-grid;
      width: 34px;
      height: 34px;
      place-items: center;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--cyan);
      font-size: 18px;
    }

    .guide-list-item:hover .guide-arrow {
      border-color: var(--line-strong);
      background: rgba(57, 213, 230, .1);
      transform: translateX(3px);
    }

    .notice-section {
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
      background: rgba(10, 28, 47, .48);
    }

    .notice-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.12fr) minmax(290px, .88fr);
      gap: 54px;
      align-items: center;
    }

    .notice-copy h2 {
      margin: 11px 0 14px;
      color: var(--white);
      font-size: 32px;
      line-height: 1.35;
    }

    .notice-copy > p {
      max-width: 670px;
      margin: 0 0 21px;
      color: var(--muted);
      font-size: 15px;
    }

    .notice-list {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px 25px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .notice-list li {
      position: relative;
      padding-left: 18px;
      color: #c9d8de;
      font-size: 14px;
    }

    .notice-list li::before {
      position: absolute;
      top: 11px;
      left: 0;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--amber);
      box-shadow: 0 0 9px rgba(243, 189, 104, .6);
      content: "";
    }

    .status-panel {
      padding: 24px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(13, 38, 63, .73);
      box-shadow: var(--shadow);
    }

    .status-panel h3 {
      margin: 0 0 17px;
      color: var(--white);
      font-size: 18px;
    }

    .status-row {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      padding: 12px 0;
      border-top: 1px solid var(--line);
      color: var(--muted);
      font-size: 13px;
    }

    .status-row strong {
      color: var(--white);
      font-weight: 600;
      text-align: right;
    }

    .status-good {
      color: var(--mint) !important;
    }

    .faq-section {
      padding-bottom: 78px;
    }

    .faq-layout {
      display: grid;
      grid-template-columns: minmax(220px, .65fr) minmax(0, 1.35fr);
      gap: 58px;
      align-items: start;
    }

    .faq-intro h2 {
      margin: 11px 0 13px;
      color: var(--white);
      font-size: 33px;
      line-height: 1.35;
    }

    .faq-intro p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .accordion {
      margin: 0;
      border: 0;
      background: transparent;
    }

    .accordion-item {
      border-top: 1px solid var(--line);
      background: transparent;
    }

    .accordion-item:last-child {
      border-bottom: 1px solid var(--line);
    }

    .accordion-title {
      display: block;
      padding: 19px 42px 19px 0;
      border: 0;
      color: var(--white);
      background: transparent;
      font-size: 16px;
      font-weight: 700;
    }

    .accordion-title::before {
      right: 8px;
      color: var(--cyan);
    }

    .accordion-title:hover,
    .accordion-title:focus {
      color: var(--cyan);
      background: transparent;
    }

    .accordion-content {
      border: 0;
      padding: 0 43px 20px 0;
      color: var(--muted);
      background: transparent;
      font-size: 14px;
    }

    .accordion-content p {
      margin: 0;
    }

    .contact-band {
      position: relative;
      overflow: hidden;
      padding: 70px 0;
      border-top: 1px solid var(--line);
      background:
        linear-gradient(105deg, rgba(13, 38, 63, .94), rgba(10, 28, 47, .8)),
        url("/assets/images/backpic/back-3.webp") center / cover;
    }

    .contact-grid {
      display: grid;
      grid-template-columns: minmax(0, .8fr) minmax(370px, 1.2fr);
      gap: 63px;
      align-items: start;
    }

    .contact-intro h2 {
      margin: 11px 0 16px;
      color: var(--white);
      font-size: 35px;
      line-height: 1.3;
    }

    .contact-intro p {
      max-width: 480px;
      margin: 0;
      color: #c0d2da;
      font-size: 15px;
    }

    .contact-points {
      display: grid;
      gap: 13px;
      margin: 28px 0 0;
      padding: 0;
      list-style: none;
    }

    .contact-points li {
      display: flex;
      gap: 11px;
      color: var(--muted);
      font-size: 13px;
    }

    .contact-points li::before {
      flex: 0 0 auto;
      width: 7px;
      height: 7px;
      margin-top: 9px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 10px rgba(57, 213, 230, .55);
      content: "";
    }

    .request-form {
      padding: 27px;
      border: 1px solid var(--line-strong);
      border-radius: var(--radius);
      background: rgba(7, 18, 31, .72);
      box-shadow: var(--shadow), var(--glow);
      backdrop-filter: blur(14px);
    }

    .form-heading {
      display: flex;
      align-items: start;
      justify-content: space-between;
      gap: 15px;
      margin-bottom: 19px;
    }

    .form-heading h3 {
      margin: 0;
      color: var(--white);
      font-size: 20px;
    }

    .form-heading span {
      color: var(--mint);
      font-size: 11px;
      white-space: nowrap;
    }

    .form-row {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }

    .form-field {
      margin-bottom: 15px;
    }

    .form-field label {
      display: block;
      margin-bottom: 6px;
      color: #c7d7de;
      font-size: 13px;
      font-weight: 600;
    }

    .form-field input,
    .form-field select,
    .form-field textarea {
      width: 100%;
      margin: 0;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--white);
      background: rgba(13, 38, 63, .74);
      box-shadow: none;
      font-size: 14px;
    }

    .form-field input,
    .form-field select {
      height: 43px;
      padding: 8px 12px;
    }

    .form-field textarea {
      min-height: 92px;
      resize: vertical;
      padding: 10px 12px;
    }

    .form-field input::placeholder,
    .form-field textarea::placeholder {
      color: var(--muted-2);
    }

    .form-field select option {
      color: var(--ink);
      background: var(--paper);
    }

    .form-field input:hover,
    .form-field select:hover,
    .form-field textarea:hover {
      border-color: rgba(188, 226, 236, .33);
    }

    .form-field input:focus,
    .form-field select:focus,
    .form-field textarea:focus {
      border-color: var(--cyan);
      background: rgba(13, 38, 63, .95);
      box-shadow: 0 0 0 3px rgba(57, 213, 230, .12);
    }

    .form-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
      margin-top: 3px;
    }

    .form-note {
      color: var(--muted-2);
      font-size: 12px;
    }

    .form-message {
      display: none;
      margin: 14px 0 0;
      border-left: 2px solid var(--mint);
      padding-left: 12px;
      color: var(--mint);
      font-size: 13px;
    }

    .form-message.visible {
      display: block;
    }

    .site-footer {
      padding: 56px 0 23px;
      border-top: 1px solid var(--line);
      background: rgba(5, 14, 25, .93);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(145px, .55fr));
      gap: 50px;
      padding-bottom: 42px;
    }

    .footer-brand p {
      max-width: 430px;
      margin: 17px 0 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.8;
    }

    .footer-title {
      margin: 5px 0 14px;
      color: var(--white);
      font-size: 14px;
    }

    .footer-links {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .footer-links li {
      margin: 7px 0;
    }

    .footer-links a {
      color: var(--muted);
      font-size: 13px;
    }

    .footer-links a:hover {
      color: var(--cyan);
    }

    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 12px 28px;
      padding-top: 19px;
      border-top: 1px solid var(--line);
      color: var(--muted-2);
      font-size: 12px;
    }

    .footer-records {
      display: flex;
      flex-wrap: wrap;
      gap: 8px 17px;
    }

    .footer-records a {
      color: var(--muted);
    }

    .footer-records a:hover {
      color: var(--cyan);
    }

    @media screen and (max-width: 1024px) {
      .nav-row {
        gap: 16px;
      }

      .nav-link {
        padding-inline: 9px;
        font-size: 13px;
      }

      .phase-nav {
        padding-left: 10px;
      }

      .hero-grid,
      .contact-grid {
        gap: 40px;
      }

      .page-hero h1 {
        font-size: 48px;
      }

      .guide-shell {
        grid-template-columns: 230px minmax(0, 1fr);
        gap: 25px;
      }
    }

    @media screen and (max-width: 768px) {
      .container {
        width: min(calc(100% - 32px), var(--max));
      }

      .site-header {
        position: relative;
      }

      .nav-row {
        min-height: 68px;
        justify-content: space-between;
      }

      .menu-toggle {
        display: inline-flex;
        align-items: center;
        gap: 7px;
      }

      .main-nav {
        display: none;
        position: absolute;
        top: 68px;
        right: 0;
        left: 0;
        align-items: stretch;
        flex-direction: column;
        gap: 15px;
        padding: 14px 16px 18px;
        border-bottom: 1px solid var(--line);
        background: rgba(7, 18, 31, .98);
        box-shadow: var(--shadow);
      }

      .main-nav.is-open {
        display: flex;
      }

      .nav-links {
        overflow-x: auto;
        align-items: stretch;
        flex-direction: column;
        gap: 3px;
      }

      .nav-link {
        justify-content: flex-start;
        width: 100%;
        height: 42px;
        padding-inline: 12px;
      }

      .nav-link::after {
        right: auto;
        bottom: 8px;
        left: 0;
        width: 2px;
        height: 26px;
        transform: scaleY(.3);
      }

      .nav-link.active::after {
        transform: scaleY(1);
      }

      .phase-nav {
        overflow-x: auto;
        justify-content: flex-start;
        padding: 14px 0 0;
        border-top: 1px solid var(--line);
        border-left: 0;
      }

      .announcement-inner {
        min-height: 42px;
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        gap: 0;
        padding: 7px 0;
      }

      .announcement-link {
        display: none;
      }

      .page-hero {
        padding: 54px 0 58px;
      }

      .hero-grid,
      .notice-grid,
      .faq-layout,
      .contact-grid {
        grid-template-columns: 1fr;
      }

      .page-hero h1 {
        margin-top: 13px;
        font-size: 42px;
      }

      .hero-lead {
        font-size: 16px;
      }

      .resource-card {
        max-width: 590px;
      }

      .section {
        padding: 62px 0;
      }

      .section-heading {
        display: block;
        margin-bottom: 24px;
      }

      .section-heading h2,
      .notice-copy h2,
      .faq-intro h2,
      .contact-intro h2 {
        font-size: 29px;
      }

      .section-heading p {
        margin-top: 12px;
      }

      .guide-shell {
        grid-template-columns: 1fr;
      }

      .guide-menu {
        position: static;
        overflow-x: auto;
        display: flex;
        gap: 5px;
        padding: 8px;
      }

      .guide-menu-title {
        display: none;
      }

      .guide-menu a {
        flex: 0 0 auto;
        min-height: 38px;
        border-left: 0;
        border-bottom: 2px solid transparent;
        padding: 7px 10px;
        white-space: nowrap;
      }

      .guide-menu a:hover,
      .guide-menu a.active {
        border-bottom-color: var(--cyan);
        border-left-color: transparent;
      }

      .feature-guide {
        grid-template-columns: minmax(190px, .75fr) minmax(0, 1fr);
        gap: 19px;
      }

      .notice-list {
        margin-bottom: 8px;
      }

      .status-panel {
        max-width: 580px;
      }

      .contact-band {
        padding: 58px 0;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px 25px;
      }

      .footer-brand {
        grid-column: 1 / -1;
      }
    }

    @media screen and (max-width: 520px) {
      .container {
        width: min(calc(100% - 26px), var(--max));
      }

      .brand {
        font-size: 20px;
      }

      .page-hero {
        padding-top: 43px;
      }

      .page-hero h1 {
        font-size: 34px;
      }

      .hero-actions,
      .form-actions {
        align-items: stretch;
        flex-direction: column;
      }

      .hero-actions .button,
      .form-actions .button {
        width: 100%;
      }

      .hero-meta {
        gap: 7px 13px;
      }

      .section {
        padding: 50px 0;
      }

      .section-heading h2,
      .notice-copy h2,
      .faq-intro h2,
      .contact-intro h2 {
        font-size: 26px;
      }

      .feature-guide {
        display: block;
      }

      .feature-image {
        margin-bottom: 20px;
      }

      .guide-list-item {
        grid-template-columns: 38px minmax(0, 1fr) 30px;
        gap: 10px;
        padding: 18px 0;
      }

      .guide-index {
        font-size: 17px;
      }

      .guide-list-item h3 {
        font-size: 15px;
      }

      .guide-list-item p {
        font-size: 12px;
      }

      .notice-list {
        grid-template-columns: 1fr;
        gap: 8px;
      }

      .faq-layout {
        gap: 24px;
      }

      .request-form {
        padding: 20px 16px;
      }

      .form-row {
        grid-template-columns: 1fr;
        gap: 0;
      }

      .form-heading {
        display: block;
      }

      .form-heading span {
        display: block;
        margin-top: 4px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .footer-brand {
        grid-column: auto;
      }

      .footer-bottom {
        display: block;
      }

      .footer-records {
        margin-top: 10px;
      }
    }