/* roulang page: index */
:root {
      --ink: #17263d;
      --muted: #64748b;
      --navy: #174a86;
      --blue: #2369b5;
      --peach: #e98267;
      --warm: #fbfcfe;
      --mist: #eef5fb;
      --line: #d9e5f0;
      --radius: 8px;
      --shadow: 0 12px 34px rgba(23,74,134,.09);
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--warm);
      font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; }
    img { display: block; max-width: 100%; }
    button, input, select, textarea { font: inherit; }
    button { cursor: pointer; }
    :focus-visible { outline: 3px solid rgba(233,130,103,.45); outline-offset: 3px; }
    .container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
    .site-header {
      position: sticky; top: 0; z-index: 50; background: rgba(251,252,254,.97);
      border-bottom: 1px solid var(--line); box-shadow: 0 3px 14px rgba(23,74,134,.04);
    }
    .nav-wrap { min-height: 76px; display: flex; align-items: center; gap: 30px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--navy); white-space: nowrap; }
    .brand-mark { width: 34px; height: 34px; display: grid; place-items: center; color: white; background: var(--navy); border-radius: 7px; font-size: 17px; }
    .brand-text { letter-spacing: .01em; }
    .nav-links { display: flex; align-items: center; gap: 25px; margin-left: auto; }
    .nav-link { position: relative; color: #40536c; font-size: 14px; padding: 24px 0; transition: color .2s ease; }
    .nav-link:hover, .nav-link.active { color: var(--navy); }
    .nav-link.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: 16px; height: 2px; background: var(--peach); }
    .nav-actions { display: flex; gap: 10px; align-items: center; }
    .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 42px; padding: 9px 17px; border: 1px solid transparent; border-radius: 7px; font-weight: 700; font-size: 14px; transition: transform .2s, box-shadow .2s, background .2s, border-color .2s; }
    .btn:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(23,74,134,.13); }
    .btn:active { transform: translateY(0); box-shadow: none; }
    .btn-primary { background: var(--navy); color: #fff; }
    .btn-primary:hover { background: #103a6d; }
    .btn-secondary { background: #fff; color: var(--navy); border-color: #bcd0e3; }
    .btn-secondary:hover { border-color: var(--navy); background: #f4f8fc; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: #fff; color: var(--navy); border-radius: 7px; padding: 8px 11px; }
    .hero { position: relative; overflow: hidden; padding: 92px 0 78px; background: linear-gradient(110deg, #f8fbfe 0%, #edf5fb 70%, #fff9f6 100%); }
    .hero::after { content: ""; position: absolute; width: 260px; height: 120px; right: -70px; bottom: 30px; background: rgba(233,130,103,.12); transform: skewX(-28deg); }
    .hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 70px; align-items: center; }
    .eyebrow, .badge { display: inline-flex; align-items: center; gap: 7px; color: var(--peach); font-weight: 800; font-size: 12px; letter-spacing: .08em; }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--peach); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { margin-bottom: 22px; font-size: clamp(38px, 5vw, 64px); line-height: 1.16; letter-spacing: .01em; color: var(--ink); }
    h2 { margin-bottom: 14px; font-size: 32px; line-height: 1.3; color: var(--ink); }
    h3 { margin-bottom: 7px; font-size: 19px; line-height: 1.45; }
    .hero-copy { max-width: 620px; color: #50647c; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 29px; }
    .hero-stats { display: flex; flex-wrap: wrap; gap: 25px; margin-top: 30px; }
    .hero-stat strong { display: block; font-size: 24px; color: var(--navy); line-height: 1.2; }
    .hero-stat span { color: var(--muted); font-size: 13px; }
    .hero-panel { min-height: 340px; position: relative; padding: 27px; background: #fff; border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow); }
    .panel-head { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--line); padding-bottom: 17px; margin-bottom: 21px; }
    .panel-title { font-weight: 800; }
    .live-dot { color: #25865d; font-size: 12px; }
    .route { display: grid; grid-template-columns: 40px 1fr auto; gap: 13px; align-items: center; padding: 14px 0; border-bottom: 1px solid #edf2f7; }
    .route:last-child { border-bottom: 0; }
    .route-no { color: var(--peach); font-weight: 800; }
    .route small { display: block; color: var(--muted); font-size: 12px; }
    .route-tag { padding: 4px 8px; background: #fff3ef; color: #bd604b; border-radius: 5px; font-size: 11px; }
    .section { padding: 92px 0; }
    .section-blue { background: var(--mist); }
    .section-head { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 35px; }
    .section-head p { max-width: 580px; margin-bottom: 0; color: var(--muted); }
    .metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); border-radius: 8px; overflow: hidden; }
    .metric { padding: 25px 24px; border-right: 1px solid var(--line); }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--navy); font-size: 33px; line-height: 1.2; }
    .metric label { display: block; margin: 8px 0 5px; font-weight: 800; font-size: 14px; }
    .metric p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
    .trend { color: #25865d; font-size: 12px; margin-top: 12px; }
    .matrix { display: grid; grid-template-columns: 1.3fr .85fr .85fr; gap: 16px; align-items: stretch; }
    .matrix-item { padding: 28px; background: #fff; border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow); transition: transform .2s, border-color .2s, box-shadow .2s; }
    .matrix-item:hover { transform: translateY(-4px); border-color: #9cb9d5; box-shadow: 0 15px 29px rgba(23,74,134,.12); }
    .matrix-main { grid-row: span 2; background: var(--navy); color: #fff; display: flex; flex-direction: column; justify-content: space-between; }
    .matrix-main p, .matrix-main .item-meta { color: #c8d9eb; }
    .item-index { color: var(--peach); font-size: 13px; font-weight: 800; margin-bottom: 26px; }
    .matrix-item p { color: var(--muted); font-size: 14px; }
    .item-meta { color: var(--muted); font-size: 12px; }
    .text-link { display: inline-flex; gap: 6px; align-items: center; color: var(--navy); font-size: 14px; font-weight: 800; margin-top: 16px; }
    .text-link:hover { color: var(--peach); }
    .compare { display: grid; grid-template-columns: 1fr 70px 1fr; gap: 20px; align-items: center; }
    .compare-box { padding: 30px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
    .compare-box.highlight { border-color: #a8c5df; box-shadow: var(--shadow); }
    .compare-label { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; font-weight: 800; }
    .compare-label span { padding: 4px 9px; border-radius: 5px; font-size: 12px; }
    .compare-label .old { background: #f3f5f7; color: #64748b; }
    .compare-label .new { background: #fff1ed; color: #bd604b; }
    .compare-list { list-style: none; padding: 0; margin: 0; }
    .compare-list li { position: relative; padding: 11px 0 11px 24px; border-bottom: 1px solid #edf2f7; color: #50647c; font-size: 14px; }
    .compare-list li:last-child { border-bottom: 0; }
    .compare-list li::before { content: "•"; position: absolute; left: 5px; color: #9aa9ba; font-size: 20px; line-height: 1.2; }
    .compare-box.highlight .compare-list li::before { content: "✓"; color: var(--peach); font-size: 14px; font-weight: 800; top: 12px; }
    .compare-arrow { display: grid; place-items: center; width: 52px; height: 52px; margin: auto; color: var(--navy); background: #fff; border: 1px solid var(--line); border-radius: 50%; font-size: 23px; box-shadow: var(--shadow); }
    .progress { height: 7px; margin-top: 10px; overflow: hidden; border-radius: 7px; background: #e9eff5; }
    .progress i { display: block; height: 100%; border-radius: inherit; background: var(--navy); }
    .faq-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 70px; align-items: start; }
    .faq-intro p { color: var(--muted); }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-question { width: 100%; display: flex; gap: 18px; align-items: center; justify-content: space-between; padding: 20px 4px; border: 0; background: transparent; color: var(--ink); text-align: left; font-weight: 800; }
    .faq-icon { flex: 0 0 auto; color: var(--navy); font-size: 24px; line-height: 1; transition: transform .2s; }
    .faq-answer { display: none; padding: 0 4px 21px; color: var(--muted); font-size: 14px; }
    .faq-item.open .faq-answer { display: block; }
    .faq-item.open .faq-icon { transform: rotate(45deg); color: var(--peach); }
    .form-band { background: #e9f3fb; padding: 74px 0; }
    .form-grid { display: grid; grid-template-columns: .84fr 1.16fr; gap: 70px; align-items: start; }
    .form-copy p { color: #50647c; max-width: 430px; }
    .form-card { padding: 28px; background: #fff; border: 1px solid #cbddea; border-radius: 8px; box-shadow: var(--shadow); }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .field { margin-bottom: 17px; }
    .field label { display: block; margin-bottom: 7px; color: #344861; font-size: 13px; font-weight: 800; }
    .field input, .field select, .field textarea {
      width: 100%; min-height: 45px; padding: 10px 12px; border: 1px solid #cbd9e5; border-radius: 6px; background: #fff; color: var(--ink); transition: border-color .2s, box-shadow .2s;
    }
    .field textarea { min-height: 92px; resize: vertical; }
    .field input::placeholder, .field textarea::placeholder { color: #9aa8b7; }
    .field input:focus, .field select:focus, .field textarea:focus { outline: 0; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(35,105,181,.12); }
    .form-note { margin: 14px 0 0; color: #718198; font-size: 12px; line-height: 1.7; }
    .form-feedback { display: none; margin-top: 14px; padding: 10px 12px; border-radius: 6px; background: #eaf7ef; color: #26714f; font-size: 13px; }
    .form-feedback.show { display: block; }
    .site-footer { padding: 53px 0 26px; background: #eaf1f7; border-top: 1px solid var(--line); }
    .footer-grid { display: grid; grid-template-columns: 1.1fr .9fr .75fr; gap: 45px; padding-bottom: 34px; }
    .footer-brand p { max-width: 360px; margin: 14px 0 0; color: #64748b; font-size: 13px; }
    .footer-title { margin-bottom: 13px; color: #38506c; font-size: 13px; font-weight: 800; }
    .footer-links { display: grid; gap: 8px; }
    .footer-links a { color: #64748b; font-size: 13px; transition: color .2s; }
    .footer-links a:hover { color: var(--navy); }
    .copyright { display: flex; justify-content: space-between; gap: 16px; padding-top: 20px; border-top: 1px solid #d4e0ea; color: #718198; font-size: 12px; }
    .floating-cta { position: fixed; right: 22px; bottom: 22px; z-index: 40; display: flex; align-items: center; gap: 11px; max-width: calc(100% - 44px); padding: 11px 12px 11px 16px; background: #fff; border: 1px solid #bfd2e4; border-radius: 8px; box-shadow: 0 14px 34px rgba(23,74,134,.17); }
    .floating-cta span { color: #50647c; font-size: 12px; font-weight: 700; }
    @media (max-width: 1024px) {
      .hero-grid, .faq-layout, .form-grid { gap: 38px; }
      .matrix { grid-template-columns: 1.15fr 1fr; }
      .matrix-main { grid-row: span 2; }
      .metric { padding: 20px 17px; }
    }
    @media (max-width: 768px) {
      .container { width: min(100% - 32px, 1160px); }
      .nav-wrap { min-height: 67px; gap: 12px; }
      .nav-links, .nav-actions { display: none; }
      .menu-toggle { display: inline-flex; margin-left: auto; }
      .mobile-nav { display: none; padding: 0 0 16px; }
      .mobile-nav.open { display: grid; gap: 8px; }
      .mobile-nav a { padding: 10px 12px; color: #40536c; font-size: 14px; border-radius: 6px; }
      .mobile-nav a:hover, .mobile-nav a.active { color: var(--navy); background: #eef5fb; }
      .mobile-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; padding-top: 6px; }
      .hero { padding: 63px 0 58px; }
      .hero-grid, .faq-layout, .form-grid { grid-template-columns: 1fr; }
      .hero-panel { min-height: auto; }
      .section { padding: 64px 0; }
      .section-head { display: block; margin-bottom: 25px; }
      .section-head h2 { margin-bottom: 11px; }
      .metric-grid { grid-template-columns: 1fr 1fr; }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      .matrix { grid-template-columns: 1fr 1fr; }
      .matrix-main { grid-column: span 2; grid-row: auto; min-height: 250px; }
      .compare { grid-template-columns: 1fr; gap: 13px; }
      .compare-arrow { transform: rotate(90deg); }
      .faq-intro { margin-bottom: 6px; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
      .footer-brand { grid-column: span 2; }
    }
    @media (max-width: 520px) {
      h1 { font-size: 39px; }
      h2 { font-size: 27px; }
      .brand-text { max-width: 190px; overflow: hidden; text-overflow: ellipsis; }
      .hero-copy { font-size: 15px; }
      .hero-actions, .hero-actions .btn { width: 100%; }
      .hero-stats { gap: 17px; }
      .metric-grid, .matrix, .form-row, .footer-grid { grid-template-columns: 1fr; }
      .metric, .metric:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--line); }
      .metric:last-child { border-bottom: 0; }
      .matrix-main, .footer-brand { grid-column: auto; }
      .matrix-item { padding: 22px; }
      .form-card { padding: 21px; }
      .copyright { display: block; }
      .copyright span { display: block; margin-bottom: 5px; }
      .floating-cta { right: 12px; bottom: 12px; left: 12px; justify-content: space-between; max-width: none; }
      .floating-cta span { display: none; }
    }

/* roulang page: category2 */
:root {
      --ink: #17263d;
      --muted: #64748b;
      --navy: #174a86;
      --blue: #2369b5;
      --peach: #e98267;
      --warm: #fbfcfe;
      --mist: #eef5fb;
      --line: #d9e5f0;
      --radius: 8px;
      --shadow: 0 12px 34px rgba(23,74,134,.09);
      --shadow-hover: 0 17px 34px rgba(23,74,134,.14);
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--warm);
      font-family: "Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; }
    img { display: block; max-width: 100%; }
    button,input,select,textarea { font: inherit; }
    button { cursor: pointer; }
    :focus-visible { outline: 3px solid rgba(233,130,103,.45); outline-offset: 3px; }
    .container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
    .site-header {
      position: sticky; top: 0; z-index: 50;
      background: rgba(251,252,254,.97);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 3px 14px rgba(23,74,134,.04);
    }
    .nav-wrap { min-height: 76px; display: flex; align-items: center; gap: 30px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--navy); white-space: nowrap; }
    .brand-mark {
      width: 34px; height: 34px; display: grid; place-items: center;
      color: #fff; background: var(--navy); border-radius: 7px; font-size: 17px;
    }
    .brand-text { letter-spacing: .01em; }
    .nav-links { display: flex; align-items: center; gap: 25px; margin-left: auto; }
    .nav-link {
      position: relative; color: #40536c; font-size: 14px; padding: 24px 0;
      transition: color .2s ease;
    }
    .nav-link:hover,.nav-link.active { color: var(--navy); }
    .nav-link.active::after {
      content: ""; position: absolute; left: 0; right: 0; bottom: 16px;
      height: 2px; background: var(--peach);
    }
    .nav-actions { display: flex; gap: 10px; align-items: center; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 42px; padding: 9px 17px; border: 1px solid transparent;
      border-radius: 7px; font-weight: 700; font-size: 14px;
      transition: transform .2s,box-shadow .2s,background .2s,border-color .2s;
    }
    .btn:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(23,74,134,.13); }
    .btn:active { transform: translateY(0); box-shadow: none; }
    .btn-primary { background: var(--navy); color: #fff; }
    .btn-primary:hover { background: #103a6d; }
    .btn-secondary { background: #fff; color: var(--navy); border-color: #bcd0e3; }
    .btn-secondary:hover { border-color: var(--navy); background: #f4f8fc; }
    .menu-toggle {
      display: none; border: 1px solid var(--line); background: #fff;
      color: var(--navy); border-radius: 7px; padding: 8px 11px; }
    .page-hero {
      padding: 76px 0 58px;
      background: linear-gradient(110deg,#f8fbfe 0%,#eef5fb 70%,#fff9f6 100%);
      border-bottom: 1px solid var(--line);
    }
    .page-hero-grid {
      display: grid; grid-template-columns: 1fr .78fr;
      gap: 64px; align-items: end;
    }
    .eyebrow,.badge {
      display: inline-flex; align-items: center; gap: 7px;
      color: var(--peach); font-weight: 800; font-size: 12px;
      letter-spacing: .08em;
    }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--peach); }
    h1,h2,h3,p { margin-top: 0; }
    h1 {
      max-width: 700px; margin-bottom: 19px; color: var(--ink);
      font-size: clamp(36px,5vw,62px); line-height: 1.18;
      letter-spacing: .01em;
    }
    h2 { margin-bottom: 12px; color: var(--ink); font-size: 32px; line-height: 1.3; }
    h3 { margin-bottom: 8px; font-size: 19px; line-height: 1.45; }
    .lead { max-width: 680px; color: #50647c; font-size: 17px; }
    .hero-note {
      padding: 24px; background: #fff; border: 1px solid var(--line);
      border-radius: var(--radius); box-shadow: var(--shadow);
    }
    .note-top { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 22px; }
    .note-title { font-weight: 800; }
    .status { display: inline-flex; align-items: center; gap: 7px; color: #41715a; font-size: 12px; font-weight: 700; }
    .status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #65aa7c; }
    .topic-bars { display: grid; gap: 15px; }
    .topic-bar { display: grid; grid-template-columns: 92px 1fr 42px; gap: 12px; align-items: center; color: var(--muted); font-size: 12px; }
    .bar-track { height: 7px; overflow: hidden; background: #e8eff6; border-radius: 8px; }
    .bar-fill { height: 100%; background: var(--blue); border-radius: inherit; }
    .bar-fill.peach { background: var(--peach); }
    .section { padding: 86px 0; }
    .section-blue { background: var(--mist); }
    .section-head {
      display: flex; justify-content: space-between; gap: 30px;
      align-items: end; margin-bottom: 34px;
    }
    .section-head p { max-width: 580px; margin-bottom: 0; color: var(--muted); }
    .filter-shell {
      display: grid; grid-template-columns: 220px 1fr;
      gap: 28px; align-items: start;
    }
    .filter-panel {
      padding: 22px; background: #fff; border: 1px solid var(--line);
      border-radius: var(--radius); box-shadow: var(--shadow);
      position: sticky; top: 100px;
    }
    .filter-label {
      display: block; margin-bottom: 12px; color: var(--ink);
      font-size: 13px; font-weight: 800;
    }
    .filter-group { display: grid; gap: 7px; margin-bottom: 24px; }
    .filter-chip {
      display: flex; align-items: center; justify-content: space-between;
      width: 100%; padding: 9px 11px; border: 1px solid transparent;
      border-radius: 6px; color: #50647c; background: #f7fafc;
      font-size: 13px; text-align: left; transition: .2s ease;
    }
    .filter-chip:hover,.filter-chip.active {
      color: var(--navy); border-color: #bcd0e3; background: #eef5fb;
    }
    .filter-chip.active { font-weight: 800; }
    .filter-chip small { color: var(--muted); }
    .filter-select {
      width: 100%; padding: 10px 12px; color: var(--ink);
      background: #fff; border: 1px solid var(--line); border-radius: 6px;
    }
    .result-head {
      display: flex; align-items: center; justify-content: space-between;
      gap: 20px; padding-bottom: 17px; border-bottom: 1px solid var(--line);
    }
    .result-count { color: var(--muted); font-size: 13px; }
    .result-list { display: grid; gap: 14px; margin-top: 18px; }
    .result-item {
      display: grid; grid-template-columns: 112px 1fr auto; gap: 20px;
      align-items: center; padding: 18px; background: #fff;
      border: 1px solid var(--line); border-radius: var(--radius);
      box-shadow: 0 7px 20px rgba(23,74,134,.055);
      transition: transform .2s,box-shadow .2s,border-color .2s;
    }
    .result-item:hover { transform: translateY(-3px); border-color: #9cb9d5; box-shadow: var(--shadow-hover); }
    .result-thumb {
      display: grid; place-items: center; min-height: 88px;
      color: var(--navy); background: #edf5fb; border-radius: 6px;
      font-size: 25px; font-weight: 800;
    }
    .result-thumb.peach { color: #b85d49; background: #fff1ed; }
    .result-thumb.sand { color: #8b6c3e; background: #faf5e8; }
    .item-kicker { margin-bottom: 5px; color: var(--peach); font-size: 11px; font-weight: 800; }
    .result-item p { margin-bottom: 7px; color: var(--muted); font-size: 13px; }
    .meta-line { display: flex; flex-wrap: wrap; gap: 14px; color: #8392a4; font-size: 11px; }
    .result-action { white-space: nowrap; }
    .topic-cloud {
      display: flex; flex-wrap: wrap; gap: 10px; padding: 22px;
      background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
      box-shadow: var(--shadow);
    }
    .topic-tag {
      display: inline-flex; padding: 8px 13px; color: var(--navy);
      background: #f2f7fb; border: 1px solid #d7e5f1; border-radius: 6px;
      font-size: 13px; transition: .2s ease;
    }
    .topic-tag:hover { color: #fff; background: var(--navy); border-color: var(--navy); }
    .faq-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 70px; align-items: start; }
    .faq-intro p { color: var(--muted); }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-question {
      width: 100%; display: flex; gap: 18px; align-items: center;
      justify-content: space-between; padding: 20px 4px; border: 0;
      background: transparent; color: var(--ink); text-align: left; font-weight: 800;
    }
    .faq-icon { flex: 0 0 auto; color: var(--navy); font-size: 24px; line-height: 1; transition: transform .2s; }
    .faq-answer { display: none; padding: 0 4px 21px; color: var(--muted); font-size: 14px; }
    .faq-item.open .faq-answer { display: block; }
    .faq-item.open .faq-icon { transform: rotate(45deg); color: var(--peach); }
    .cta-band { padding: 58px 0; background: #eaf3fb; border-top: 1px solid var(--line); }
    .cta-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 55px; align-items: start; }
    .cta-copy p { color: var(--muted); }
    .contact-form {
      display: grid; grid-template-columns: 1fr 1fr; gap: 15px;
      padding: 26px; background: #fff; border: 1px solid var(--line);
      border-radius: var(--radius); box-shadow: var(--shadow);
    }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { color: var(--ink); font-size: 13px; font-weight: 800; }
    .field input,.field select,.field textarea {
      width: 100%; padding: 10px 12px; color: var(--ink);
      background: #fbfdff; border: 1px solid #cbdbea; border-radius: 6px;
      transition: border-color .2s,box-shadow .2s;
    }
    .field textarea { min-height: 96px; resize: vertical; }
    .field input:hover,.field select:hover,.field textarea:hover { border-color: #9cb9d5; }
    .field input:focus,.field select:focus,.field textarea:focus {
      outline: none; border-color: var(--blue);
      box-shadow: 0 0 0 3px rgba(35,105,181,.12);
    }
    .form-foot {
      grid-column: 1 / -1; display: flex; align-items: center;
      justify-content: space-between; gap: 18px; flex-wrap: wrap;
    }
    .privacy-note { color: #8190a1; font-size: 11px; }
    .form-message { grid-column: 1 / -1; min-height: 22px; color: #397653; font-size: 13px; }
    .site-footer { padding: 54px 0 24px; background: #f0f5f9; border-top: 1px solid var(--line); }
    .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 48px; }
    .footer-brand p { max-width: 340px; margin: 18px 0 0; color: var(--muted); font-size: 13px; }
    .footer-title { margin-bottom: 15px; color: var(--ink); font-size: 13px; font-weight: 800; }
    .footer-links { display: grid; gap: 9px; color: var(--muted); font-size: 13px; }
    .footer-links a:hover { color: var(--navy); }
    .copyright {
      display: flex; justify-content: space-between; gap: 20px;
      margin-top: 42px; padding-top: 19px; border-top: 1px solid var(--line);
      color: #8291a1; font-size: 11px;
    }
    .mini-rule { width: 48px; height: 2px; margin: 18px 0; background: var(--peach); }
    @media (max-width: 900px) {
      .nav-wrap { gap: 18px; }
      .nav-links { gap: 16px; }
      .nav-actions .btn { padding-left: 12px; padding-right: 12px; }
      .page-hero-grid,.cta-layout { grid-template-columns: 1fr; gap: 30px; }
      .filter-shell { grid-template-columns: 190px 1fr; gap: 20px; }
      .faq-layout { gap: 35px; }
    }
    @media (max-width: 720px) {
      .container { width: min(100% - 28px, 600px); }
      .nav-wrap { min-height: 68px; justify-content: space-between; }
      .brand-text { font-size: 14px; }
      .menu-toggle { display: block; }
      .nav-links {
        display: none; position: absolute; left: 14px; right: 14px; top: 76px;
        margin: 0; padding: 12px 16px; background: #fff;
        border: 1px solid var(--line); border-radius: 7px; box-shadow: var(--shadow);
        align-items: stretch; flex-direction: column; gap: 0;
      }
      .nav-links.open { display: flex; }
      .nav-link { padding: 11px 0; border-bottom: 1px solid #edf2f7; }
      .nav-link:last-child { border-bottom: 0; }
      .nav-link.active::after { bottom: 8px; left: auto; right: 0; width: 22px; }
      .nav-actions { display: none; }
      .page-hero { padding: 54px 0 42px; }
      h1 { font-size: 38px; }
      h2 { font-size: 27px; }
      .section { padding: 60px 0; }
      .section-head { display: block; margin-bottom: 25px; }
      .section-head p { margin-top: 10px; }
      .filter-shell { grid-template-columns: 1fr; }
      .filter-panel { position: static; }
      .filter-group { display: flex; flex-wrap: wrap; margin-bottom: 16px; }
      .filter-chip { width: auto; }
      .result-item { grid-template-columns: 72px 1fr; gap: 14px; }
      .result-thumb { min-height: 68px; font-size: 20px; }
      .result-action { grid-column: 2; justify-self: start; }
      .contact-form { grid-template-columns: 1fr; padding: 19px; }
      .field.full,.form-foot,.form-message { grid-column: auto; }
      .form-foot { align-items: flex-start; flex-direction: column; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
      .footer-brand { grid-column: 1 / -1; }
      .copyright { display: block; }
      .copyright span { display: block; margin-top: 5px; }
    }
    @media (max-width: 430px) {
      .brand-mark { width: 30px; height: 30px; font-size: 15px; }
      .brand-text { max-width: 170px; white-space: normal; line-height: 1.25; }
      .page-hero-grid { gap: 22px; }
      h1 { font-size: 32px; }
      .hero-note { padding: 18px; }
      .topic-bar { grid-template-columns: 76px 1fr 32px; gap: 8px; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-brand { grid-column: auto; }
    }

/* roulang page: category1 */
:root {
      --ink:#17263d;
      --muted:#64748b;
      --navy:#174a86;
      --blue:#2369b5;
      --peach:#e98267;
      --warm:#fbfcfe;
      --mist:#eef5fb;
      --line:#d9e5f0;
      --radius:8px;
      --shadow:0 12px 34px rgba(23,74,134,.09);
      --shadow-hover:0 17px 34px rgba(23,74,134,.14);
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--warm);font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(233,130,103,.48);outline-offset:3px}
    .container{width:min(1160px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(251,252,254,.97);border-bottom:1px solid var(--line);box-shadow:0 3px 14px rgba(23,74,134,.04)}
    .nav-wrap{min-height:76px;display:flex;align-items:center;gap:30px}
    .brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--navy);white-space:nowrap}
    .brand-mark{width:34px;height:34px;display:grid;place-items:center;color:#fff;background:var(--navy);border-radius:7px;font-size:17px}
    .brand-text{letter-spacing:.01em}
    .nav-links{display:flex;align-items:center;gap:25px;margin-left:auto}
    .nav-link{position:relative;color:#40536c;font-size:14px;padding:24px 0;transition:color .2s ease}
    .nav-link:hover,.nav-link.active{color:var(--navy)}
    .nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;background:var(--peach)}
    .nav-actions{display:flex;gap:10px;align-items:center}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:9px 17px;border:1px solid transparent;border-radius:7px;font-weight:700;font-size:14px;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s}
    .btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(23,74,134,.13)}
    .btn:active{transform:translateY(0);box-shadow:none}
    .btn-primary{background:var(--navy);color:#fff}
    .btn-primary:hover{background:#103a6d}
    .btn-secondary{background:#fff;color:var(--navy);border-color:#bcd0e3}
    .btn-secondary:hover{border-color:var(--navy);background:#f4f8fc}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--navy);border-radius:7px;padding:8px 11px}
    .page-hero{padding:78px 0 62px;background:#f1f7fc;border-bottom:1px solid var(--line)}
    .hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}
    .eyebrow,.badge{display:inline-flex;align-items:center;gap:7px;color:var(--peach);font-weight:800;font-size:12px;letter-spacing:.08em}
    .eyebrow::before{content:"";width:24px;height:2px;background:var(--peach)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5vw,64px);line-height:1.15;letter-spacing:-.02em;margin:17px 0 20px;color:var(--ink)}
    h2{font-size:32px;line-height:1.3;margin-bottom:14px}
    h3{font-size:19px;line-height:1.45;margin-bottom:9px}
    .hero-copy{max-width:650px;color:#50647c;font-size:17px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .profile-panel{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:8px;padding:27px}
    .profile-top{display:flex;align-items:center;gap:16px;padding-bottom:23px;border-bottom:1px solid var(--line)}
    .profile-avatar{width:66px;height:66px;border-radius:8px;display:grid;place-items:center;background:#fff0ea;color:var(--peach);font-size:29px;font-weight:800;border:1px solid #f3c8ba}
    .profile-name{font-weight:800;font-size:20px}
    .profile-note{color:var(--muted);font-size:13px}
    .profile-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding-top:23px}
    .profile-stats strong{display:block;color:var(--navy);font-size:23px;line-height:1.2}
    .profile-stats span{font-size:12px;color:var(--muted)}
    .section{padding:82px 0}
    .section-blue{background:var(--mist)}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:32px}
    .section-head p{max-width:580px;margin-bottom:0;color:var(--muted)}
    .filter-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:15px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:8px;margin-bottom:28px}
    .filter-label{font-size:13px;font-weight:800;color:var(--navy);margin-right:4px}
    .filter-chip{border:1px solid var(--line);background:#fff;color:#50647c;border-radius:6px;padding:7px 13px;font-size:13px;transition:.2s}
    .filter-chip:hover,.filter-chip.active{background:#edf5fb;border-color:#9cb9d5;color:var(--navy)}
    .filter-select{margin-left:auto;border:1px solid var(--line);border-radius:6px;color:var(--ink);background:#fff;padding:8px 12px;font-size:13px}
    .content-layout{display:grid;grid-template-columns:280px 1fr;gap:28px;align-items:start}
    .side-box{background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px;box-shadow:var(--shadow);position:sticky;top:100px}
    .side-title{font-weight:800;font-size:16px;padding-bottom:15px;border-bottom:1px solid var(--line);margin-bottom:10px}
    .side-list{list-style:none;padding:0;margin:0}
    .side-list li{border-bottom:1px solid #edf2f7}
    .side-list a{display:flex;justify-content:space-between;gap:10px;padding:12px 0;color:#50647c;font-size:14px;transition:color .2s}
    .side-list a:hover,.side-list a.active{color:var(--navy);font-weight:700}
    .side-list small{color:#9aa9ba}
    .side-tip{margin-top:22px;padding:14px;background:#fff8f5;border-left:3px solid var(--peach);color:#6d5b56;font-size:13px}
    .content-list{display:grid;gap:14px}
    .content-item{display:grid;grid-template-columns:88px 1fr auto;gap:20px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:8px;padding:20px;box-shadow:0 7px 22px rgba(23,74,134,.055);transition:transform .2s,box-shadow .2s,border-color .2s}
    .content-item:hover{transform:translateY(-3px);border-color:#9cb9d5;box-shadow:var(--shadow-hover)}
    .item-visual{width:88px;height:74px;border-radius:6px;background:#eaf3fb;display:grid;place-items:center;color:var(--navy);font-weight:800;font-size:24px;border:1px solid #d4e4f1}
    .item-visual.peach{background:#fff0ea;color:var(--peach);border-color:#f3d1c7}
    .item-kicker{color:var(--peach);font-size:11px;font-weight:800;letter-spacing:.05em}
    .item-summary{color:var(--muted);font-size:13px;margin-bottom:6px}
    .item-meta{color:#8a9aad;font-size:12px}
    .item-action{white-space:nowrap}
    .text-link{display:inline-flex;gap:6px;align-items:center;color:var(--navy);font-size:14px;font-weight:800}
    .text-link:hover{color:var(--peach)}
    .notice{padding:18px 20px;background:#fff;border:1px dashed #aac2d8;border-radius:8px;color:#50647c;font-size:14px}
    .faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px;align-items:start}
    .faq-intro p{color:var(--muted)}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;display:flex;gap:18px;align-items:center;justify-content:space-between;padding:20px 4px;border:0;background:transparent;color:var(--ink);text-align:left;font-weight:800}
    .faq-icon{flex:0 0 auto;color:var(--navy);font-size:24px;line-height:1;transition:transform .2s}
    .faq-answer{display:none;padding:0 4px 21px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-icon{transform:rotate(45deg);color:var(--peach)}
    .cta-band{padding:54px 0;background:#eaf3fb;border-top:1px solid #d4e4f1}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta-inner p{color:var(--muted);margin-bottom:0;max-width:650px}
    .site-footer{padding:52px 0 24px;background:#edf3f8;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px;padding-bottom:40px}
    .footer-brand p{max-width:350px;color:var(--muted);font-size:14px;margin-top:16px}
    .footer-title{font-weight:800;color:var(--navy);margin-bottom:13px}
    .footer-links{display:grid;gap:8px;color:#5b6f85;font-size:14px}
    .footer-links a:hover{color:var(--peach)}
    .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:19px;border-top:1px solid var(--line);color:#7a8b9d;font-size:12px}
    @media(max-width:900px){
      .hero-inner,.content-layout,.faq-layout{grid-template-columns:1fr;gap:34px}
      .side-box{position:static}
      .nav-wrap{gap:15px}
      .nav-links{gap:16px}
      .nav-actions{display:none}
    }
    @media(max-width:680px){
      .container{width:min(100% - 28px,1160px)}
      .nav-wrap{min-height:66px}
      .brand-text{font-size:14px}
      .brand-mark{width:31px;height:31px}
      .nav-links{display:none;position:absolute;left:14px;right:14px;top:72px;flex-direction:column;align-items:stretch;gap:0;padding:10px 16px;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow)}
      .nav-links.open{display:flex}
      .nav-link{padding:12px 0}
      .nav-link.active::after{bottom:5px;right:auto;width:28px}
      .menu-toggle{display:block;margin-left:auto}
      .page-hero{padding:55px 0 45px}
      h1{font-size:39px}
      h2{font-size:27px}
      .profile-stats{gap:7px}
      .section{padding:58px 0}
      .section-head,.cta-inner{display:block}
      .section-head p{margin-top:12px}
      .filter-select{margin-left:0;width:100%}
      .content-item{grid-template-columns:60px 1fr;gap:14px;padding:16px}
      .item-visual{width:60px;height:60px;font-size:19px}
      .item-action{grid-column:2;justify-self:start}
      .footer-grid{grid-template-columns:1fr;gap:25px;padding-bottom:28px}
      .copyright{display:grid;gap:7px}
    }