/* roulang page: index */
:root {
      --blue: #2367d1;
      --blue-dark: #174d9f;
      --blue-soft: #eaf2ff;
      --ink: #172033;
      --text: #435066;
      --muted: #718096;
      --bg: #f6f9fd;
      --surface: #ffffff;
      --line: #dce7f5;
      --teal: #20a58a;
      --amber: #e7a83e;
      --radius: 8px;
      --shadow: 0 10px 28px rgba(31, 70, 120, .10);
      --shadow-hover: 0 14px 34px rgba(31, 70, 120, .16);
      --ease: 200ms ease;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--bg);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.75;
      letter-spacing: 0;
    }
    a { color: inherit; text-decoration: none; transition: color var(--ease), background var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease); }
    img { display: block; max-width: 100%; }
    button, input, select, textarea { font: inherit; }
    button, .button { cursor: pointer; }
    :focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; }
    .grid-container { max-width: 1240px; padding-left: 32px; padding-right: 32px; }
    .section { padding: 96px 0; }
    .section-alt { background: #fff; }
    .section-head { max-width: 700px; margin-bottom: 42px; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--blue);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .04em;
      margin-bottom: 12px;
    }
    .eyebrow::before {
      content: "";
      width: 22px;
      height: 2px;
      background: var(--amber);
    }
    h1, h2, h3, p { margin-top: 0; }
    h1 {
      max-width: 690px;
      margin-bottom: 22px;
      font-size: 52px;
      line-height: 1.15;
      font-weight: 800;
      letter-spacing: 0;
    }
    h2 {
      margin-bottom: 14px;
      font-size: 34px;
      line-height: 1.25;
      font-weight: 800;
    }
    h3 {
      margin-bottom: 8px;
      font-size: 21px;
      line-height: 1.35;
      font-weight: 750;
    }
    .section-lead { color: var(--text); font-size: 17px; margin-bottom: 0; }
    .site-header {
      position: relative;
      z-index: 10;
      background: rgba(255,255,255,.97);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 3px 14px rgba(31, 70, 120, .06);
    }
    .topbar {
      min-height: 70px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--ink);
      font-weight: 800;
      white-space: nowrap;
    }
    .brand-mark {
      display: grid;
      place-items: center;
      width: 34px;
      height: 34px;
      color: #fff;
      background: var(--blue);
      border-radius: 6px;
      font-size: 14px;
    }
    .brand-name { font-size: 18px; }
    .desktop-nav { display: flex; align-items: center; gap: 6px; margin-right: auto; margin-left: 28px; }
    .desktop-nav a {
      position: relative;
      padding: 22px 14px 19px;
      color: var(--text);
      font-size: 14px;
      font-weight: 650;
    }
    .desktop-nav a:hover, .desktop-nav a.active { color: var(--blue); }
    .desktop-nav a.active::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: -1px;
      height: 3px;
      background: var(--blue);
    }
    .header-tools { display: flex; align-items: center; gap: 12px; }
    .search-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--text);
      padding: 9px 10px;
      font-size: 14px;
    }
    .search-link:hover { color: var(--blue); }
    .button {
      border: 1px solid transparent;
      border-radius: 6px;
      padding: 11px 19px;
      font-size: 14px;
      font-weight: 750;
      line-height: 1.4;
      transition: transform var(--ease), background var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .button.primary { color: #fff; background: var(--blue); }
    .button.primary:hover { color: #fff; background: var(--blue-dark); transform: translateY(-1px); box-shadow: 0 7px 16px rgba(35,103,209,.22); }
    .button.hollow { color: var(--blue); border-color: #a9c5ec; background: #fff; }
    .button.hollow:hover { color: var(--blue-dark); background: var(--blue-soft); border-color: var(--blue); transform: translateY(-1px); }
    .menu-toggle { display: none; color: var(--ink); background: transparent; border: 0; font-size: 22px; padding: 8px; }
    .mobile-menu { display: none; border-top: 1px solid var(--line); padding: 12px 0 18px; }
    .mobile-menu a { display: block; padding: 10px 0; color: var(--text); font-weight: 650; }
    .mobile-menu a.active { color: var(--blue); }

    .hero {
      position: relative;
      overflow: hidden;
      background: #fff;
      border-bottom: 1px solid var(--line);
    }
    .hero-grid {
      min-height: 610px;
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(390px, .92fr);
      align-items: center;
      gap: 62px;
      padding-top: 68px;
      padding-bottom: 68px;
    }
    .hero-copy { position: relative; z-index: 2; }
    .hero-copy p { max-width: 650px; color: var(--text); font-size: 18px; line-height: 1.8; margin-bottom: 30px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 30px; }
    .hero-notes { display: flex; flex-wrap: wrap; gap: 20px; color: var(--muted); font-size: 13px; }
    .hero-notes span { display: inline-flex; align-items: center; gap: 7px; }
    .hero-notes i { color: var(--teal); }
    .hero-visual { position: relative; min-height: 430px; }
    .hero-image {
      width: 100%;
      height: 430px;
      object-fit: cover;
      aspect-ratio: 4 / 3;
      border-radius: 8px;
      box-shadow: var(--shadow);
    }
    .visual-caption {
      position: absolute;
      left: -28px;
      bottom: 28px;
      width: 224px;
      padding: 18px;
      background: #fff;
      border: 1px solid var(--line);
      border-left: 4px solid var(--teal);
      border-radius: 7px;
      box-shadow: var(--shadow);
    }
    .visual-caption strong { display: block; color: var(--ink); font-size: 25px; line-height: 1.2; }
    .visual-caption span { color: var(--muted); font-size: 13px; }
    .visual-index {
      position: absolute;
      top: 20px;
      right: 20px;
      padding: 7px 10px;
      color: var(--blue);
      background: rgba(255,255,255,.94);
      border: 1px solid var(--line);
      border-radius: 5px;
      font-size: 12px;
      font-weight: 750;
    }

    .metric-strip { border-bottom: 1px solid var(--line); background: var(--bg); }
    .metrics { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 0; }
    .metric { padding: 30px 28px; border-right: 1px solid var(--line); }
    .metric:first-child { padding-left: 0; }
    .metric:last-child { border-right: 0; }
    .metric-value { display: block; margin-bottom: 4px; color: var(--ink); font-size: 32px; line-height: 1.2; font-weight: 800; }
    .metric:first-child .metric-value { color: var(--blue); }
    .metric-label { color: var(--muted); font-size: 14px; }
    .trend { display: inline-block; margin-left: 6px; color: var(--teal); font-size: 12px; }

    .benefit-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 18px; }
    .benefit-card, .topic-card, .plan-card, .info-panel {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .benefit-card:hover, .topic-card:hover, .plan-card:hover, .info-panel:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: #a9c5ec; }
    .benefit-card { min-height: 220px; padding: 30px; }
    .benefit-card.featured { grid-row: span 2; background: #fafdff; border-top: 4px solid var(--blue); }
    .icon-box { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 24px; color: var(--blue); background: var(--blue-soft); border-radius: 6px; }
    .benefit-card p, .topic-card p, .plan-card p { color: var(--text); font-size: 14px; margin-bottom: 18px; }
    .text-link { display: inline-flex; align-items: center; gap: 7px; color: var(--blue); font-size: 14px; font-weight: 750; }
    .text-link:hover { color: var(--blue-dark); gap: 10px; }
    .topic-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .topic-card { padding: 22px; min-height: 170px; }
    .topic-card .topic-number { color: var(--amber); font-size: 13px; font-weight: 800; }
    .topic-card h3 { margin-top: 12px; font-size: 18px; }

    .comparison { background: #eef5ff; }
    .comparison-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
    .compare-table { width: 100%; min-width: 680px; border-collapse: collapse; }
    .compare-table th, .compare-table td { padding: 18px 22px; text-align: left; border-bottom: 1px solid var(--line); }
    .compare-table th { color: var(--ink); background: #f8fbff; font-size: 14px; }
    .compare-table td { color: var(--text); font-size: 14px; }
    .compare-table tr:last-child td { border-bottom: 0; }
    .status { display: inline-flex; align-items: center; gap: 6px; color: var(--teal); font-weight: 700; }
    .status.warn { color: #b17a1b; }

    .info-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: stretch; }
    .info-list { border-top: 1px solid var(--line); }
    .info-item { display: flex; justify-content: space-between; align-items: center; gap: 22px; padding: 20px 0; border-bottom: 1px solid var(--line); }
    .info-item h3 { margin-bottom: 4px; font-size: 18px; }
    .info-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .info-meta { flex: 0 0 auto; color: var(--muted); font-size: 12px; }
    .info-panel { padding: 28px; background: var(--ink); color: #fff; border-color: var(--ink); }
    .info-panel h3 { color: #fff; margin-bottom: 12px; }
    .info-panel p { color: #cbd6e8; font-size: 14px; }
    .mini-list { margin: 22px 0 0; padding: 0; list-style: none; }
    .mini-list li { padding: 11px 0; color: #e3ebf7; border-top: 1px solid rgba(255,255,255,.14); font-size: 14px; }
    .mini-list i { width: 20px; color: var(--amber); }

    .opening { background: #fff; }
    .opening-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 70px; align-items: start; }
    .opening-copy { padding-top: 15px; }
    .opening-copy p { color: var(--text); font-size: 16px; }
    .privacy-note { display: flex; gap: 9px; margin-top: 24px; color: var(--muted); font-size: 13px; }
    .privacy-note i { color: var(--teal); margin-top: 5px; }
    .form-panel { padding: 30px; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); }
    label { color: var(--ink); font-size: 14px; font-weight: 700; }
    input, select, textarea { height: auto; margin-top: 7px; padding: 12px 13px !important; color: var(--ink) !important; background: #fff !important; border: 1px solid #cbd9eb !important; border-radius: 6px !important; box-shadow: none !important; }
    input:focus, select:focus, textarea:focus { border-color: var(--blue) !important; box-shadow: 0 0 0 2px rgba(35,103,209,.14) !important; }
    textarea { min-height: 96px; resize: vertical; }
    .form-error { display: none; color: #b33a3a; font-size: 12px; margin-top: -10px; margin-bottom: 10px; }
    .form-check { display: flex; align-items: flex-start; gap: 8px; margin: 3px 0 18px; color: var(--muted); font-size: 13px; }
    .form-check input { margin: 5px 0 0 !important; }
    .form-message { display: none; margin: 14px 0 0; color: var(--teal); font-size: 14px; }

    .faq { background: var(--bg); }
    .accordion { margin: 0; background: transparent; border: 0; }
    .accordion-item { margin-bottom: 10px; border: 1px solid var(--line); border-radius: 7px; overflow: hidden; background: #fff; }
    .accordion-title { padding: 20px 52px 20px 22px; color: var(--ink); border: 0; font-size: 16px; font-weight: 700; }
    .accordion-title:hover { color: var(--blue); background: #fbfdff; }
    .accordion-title::before { right: 22px; color: var(--blue); }
    .accordion-content { padding: 0 22px 20px; color: var(--text); border: 0; background: #fff; font-size: 14px; }
    .accordion-item.is-active .accordion-title { color: var(--blue); }
    .accordion-item.is-active .accordion-title::before { transform: rotate(180deg); }

    .site-footer { padding: 48px 0 30px; background: #fff; border-top: 1px solid var(--line); }
    .footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 40px; }
    .footer-desc { max-width: 360px; margin: 16px 0 0; color: var(--muted); font-size: 14px; }
    .footer-title { margin-bottom: 14px; color: var(--ink); font-size: 14px; font-weight: 800; }
    .footer-links { margin: 0; padding: 0; list-style: none; }
    .footer-links li { margin-bottom: 8px; color: var(--muted); font-size: 14px; }
    .footer-links a:hover { color: var(--blue); }
    .copyright { margin-top: 40px; padding-top: 20px; color: var(--muted); border-top: 1px solid var(--line); font-size: 12px; }

    @media screen and (max-width: 1023px) {
      .grid-container { padding-left: 24px; padding-right: 24px; }
      h1 { font-size: 44px; }
      .hero-grid { gap: 36px; grid-template-columns: 1fr 1fr; }
      .metrics { grid-template-columns: repeat(2, 1fr); }
      .metric, .metric:first-child { padding: 24px 18px; border-bottom: 1px solid var(--line); }
      .benefit-grid { grid-template-columns: repeat(2, 1fr); }
      .benefit-card.featured { grid-row: auto; }
      .topic-grid { grid-template-columns: repeat(2, 1fr); }
      .opening-grid { gap: 35px; }
    }
    @media screen and (max-width: 639px) {
      .grid-container { padding-left: 16px; padding-right: 16px; }
      .topbar { min-height: 64px; }
      .desktop-nav, .header-tools .search-link { display: none; }
      .header-tools { margin-left: auto; }
      .menu-toggle { display: block; }
      .mobile-menu.is-open { display: block; }
      .mobile-menu .button { display: inline-block; margin-top: 8px; }
      .section { padding: 58px 0; }
      h1 { font-size: 36px; line-height: 1.18; }
      h2 { font-size: 29px; }
      .hero-grid { min-height: auto; display: flex; flex-direction: column; align-items: stretch; gap: 32px; padding-top: 52px; padding-bottom: 52px; }
      .hero-copy p { font-size: 16px; line-height: 1.7; }
      .hero-visual { min-height: 300px; }
      .hero-image { height: 300px; }
      .visual-caption { left: 14px; bottom: 16px; width: 190px; padding: 13px; }
      .visual-caption strong { font-size: 22px; }
      .metrics { grid-template-columns: repeat(2, 1fr); }
      .metric { min-height: 108px; padding: 18px 12px !important; }
      .metric-value { font-size: 25px; }
      .metric-label { font-size: 12px; }
      .benefit-grid, .topic-grid, .info-layout, .opening-grid, .footer-grid { grid-template-columns: 1fr; }
      .benefit-card { min-height: auto; padding: 24px; }
      .topic-card { min-height: 145px; }
      .comparison-wrap { margin-right: -16px; border-right: 0; border-radius: 7px 0 0 7px; }
      .opening-grid { gap: 28px; }
      .form-panel { padding: 22px 18px; }
      .info-item { align-items: flex-start; }
      .info-meta { white-space: nowrap; }
      .footer-grid { gap: 26px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
    }

/* roulang page: category1 */
:root {
      --blue:#2367d1;
      --blue-dark:#174d9f;
      --blue-soft:#eaf2ff;
      --ink:#172033;
      --text:#435066;
      --muted:#718096;
      --bg:#f6f9fd;
      --surface:#fff;
      --line:#dce7f5;
      --teal:#20a58a;
      --amber:#e7a83e;
      --radius:8px;
      --shadow:0 10px 28px rgba(31,70,120,.10);
      --shadow-hover:0 14px 34px rgba(31,70,120,.16);
      --ease:200ms ease;
    }
    * { box-sizing:border-box; }
    html { scroll-behavior:smooth; }
    body {
      margin:0;
      color:var(--ink);
      background:var(--bg);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      letter-spacing:0;
    }
    a { color:inherit; text-decoration:none; transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease); }
    img { display:block; max-width:100%; }
    button,input,select,textarea { font:inherit; }
    button,.button { cursor:pointer; }
    :focus-visible { outline:3px solid rgba(35,103,209,.35); outline-offset:3px; }
    .grid-container { max-width:1240px; padding-left:32px; padding-right:32px; }
    .site-header {
      position:relative;
      z-index:10;
      background:rgba(255,255,255,.97);
      border-bottom:1px solid var(--line);
      box-shadow:0 3px 14px rgba(31,70,120,.06);
    }
    .topbar { min-height:70px; display:flex; align-items:center; justify-content:space-between; gap:24px; }
    .brand { display:inline-flex; align-items:center; gap:10px; color:var(--ink); font-weight:800; white-space:nowrap; }
    .brand-mark { display:grid; place-items:center; width:34px; height:34px; color:#fff; background:var(--blue); border-radius:6px; font-size:14px; }
    .brand-name { font-size:18px; }
    .desktop-nav { display:flex; align-items:center; gap:6px; margin-right:auto; margin-left:28px; }
    .desktop-nav a { position:relative; padding:22px 14px 19px; color:var(--text); font-size:14px; font-weight:650; }
    .desktop-nav a:hover,.desktop-nav a.active { color:var(--blue); }
    .desktop-nav a.active::after { content:""; position:absolute; left:14px; right:14px; bottom:-1px; height:3px; background:var(--blue); }
    .header-tools { display:flex; align-items:center; gap:12px; }
    .search-link { display:inline-flex; align-items:center; gap:8px; color:var(--text); padding:9px 10px; font-size:14px; }
    .search-link:hover { color:var(--blue); }
    .button { border:1px solid transparent; border-radius:6px; padding:11px 19px; font-size:14px; font-weight:750; line-height:1.4; transition:transform var(--ease),background var(--ease),box-shadow var(--ease),border-color var(--ease); }
    .button.primary { color:#fff; background:var(--blue); }
    .button.primary:hover { color:#fff; background:var(--blue-dark); transform:translateY(-1px); box-shadow:0 7px 16px rgba(35,103,209,.22); }
    .button.hollow { color:var(--blue); border-color:#a9c5ec; background:#fff; }
    .button.hollow:hover { color:var(--blue-dark); background:var(--blue-soft); border-color:var(--blue); transform:translateY(-1px); }
    .menu-toggle { display:none; color:var(--ink); background:transparent; border:0; font-size:22px; padding:8px; }
    .mobile-menu { display:none; border-top:1px solid var(--line); padding:12px 0 18px; }
    .mobile-menu a { display:block; padding:10px 0; color:var(--text); font-weight:650; }
    .mobile-menu a.active { color:var(--blue); }

    .inner-hero { background:#fff; border-bottom:1px solid var(--line); }
    .inner-hero-grid { min-height:390px; display:grid; grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr); align-items:center; gap:64px; padding-top:54px; padding-bottom:54px; }
    .eyebrow { display:inline-flex; align-items:center; gap:8px; color:var(--blue); font-size:13px; font-weight:700; letter-spacing:.04em; margin-bottom:12px; }
    .eyebrow::before { content:""; width:22px; height:2px; background:var(--amber); }
    h1,h2,h3 { color:var(--ink); line-height:1.2; margin-top:0; }
    h1 { max-width:650px; font-size:clamp(36px,4vw,52px); margin-bottom:20px; }
    h2 { font-size:32px; margin-bottom:14px; }
    h3 { font-size:20px; margin-bottom:10px; }
    .hero-lead { max-width:650px; color:var(--text); font-size:18px; margin-bottom:24px; }
    .hero-actions { display:flex; flex-wrap:wrap; gap:12px; }
    .hero-visual { position:relative; }
    .hero-image { width:100%; height:285px; aspect-ratio:16/9; object-fit:cover; border-radius:8px; box-shadow:var(--shadow); }
    .visual-note { position:absolute; right:18px; bottom:18px; max-width:230px; padding:14px 16px; color:var(--ink); background:#fff; border-left:3px solid var(--teal); box-shadow:var(--shadow); font-size:14px; }
    .section { padding:88px 0; }
    .section-alt { background:#fff; }
    .section-head { max-width:720px; margin-bottom:36px; }
    .section-lead { color:var(--text); font-size:17px; margin:0; }
    .guide-layout { display:grid; grid-template-columns:minmax(0,1.25fr) minmax(300px,.75fr); gap:22px; align-items:start; }
    .feature-entry,.guide-item,.info-panel,.faq-wrap {
      background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow);
      transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
    }
    .feature-entry:hover,.guide-item:hover,.info-panel:hover { transform:translateY(-2px); box-shadow:var(--shadow-hover); border-color:#a9c5ec; }
    .feature-entry { display:grid; grid-template-columns:minmax(230px,.9fr) minmax(0,1.1fr); overflow:hidden; }
    .feature-entry img { width:100%; height:100%; min-height:285px; aspect-ratio:4/3; object-fit:cover; }
    .entry-copy { padding:30px; }
    .entry-copy p,.guide-item p { color:var(--text); font-size:15px; }
    .entry-meta,.item-meta { display:flex; flex-wrap:wrap; gap:14px; color:var(--muted); font-size:13px; margin:18px 0; }
    .entry-meta span,.item-meta span { display:inline-flex; align-items:center; gap:6px; }
    .entry-meta i { color:var(--teal); }
    .guide-list { display:grid; gap:14px; }
    .guide-item { display:grid; grid-template-columns:100px minmax(0,1fr) 24px; gap:18px; align-items:center; padding:16px; }
    .guide-item img { width:100px; height:78px; aspect-ratio:4/3; object-fit:cover; border-radius:6px; }
    .guide-item h3 { font-size:18px; margin-bottom:5px; }
    .guide-item p { margin:0; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
    .guide-item .arrow { color:var(--blue); font-size:17px; }
    .tag { display:inline-block; color:var(--blue); background:var(--blue-soft); border:1px solid #c8dcf8; border-radius:4px; padding:3px 8px; font-size:12px; font-weight:700; }
    .notice-bar { display:flex; justify-content:space-between; gap:20px; align-items:center; margin-top:28px; padding:18px 22px; border-left:3px solid var(--amber); background:#fffaf1; color:var(--text); font-size:14px; }
    .notice-bar strong { color:var(--ink); }
    .pagination { display:flex; justify-content:center; gap:8px; margin-top:36px; }
    .pagination a { min-width:38px; height:38px; display:grid; place-items:center; border:1px solid var(--line); border-radius:6px; background:#fff; color:var(--text); font-size:14px; }
    .pagination a:hover,.pagination a.current { color:#fff; background:var(--blue); border-color:var(--blue); }
    .search-band { background:var(--blue-soft); padding:54px 0; }
    .search-layout { display:grid; grid-template-columns:.8fr 1.2fr; gap:42px; align-items:center; }
    .search-layout h2 { margin-bottom:10px; }
    .search-layout p { color:var(--text); margin:0; }
    .search-form { display:flex; gap:10px; }
    .search-form input { height:48px; flex:1; margin:0; border:1px solid #b9cde9; border-radius:6px; box-shadow:none; background:#fff; }
    .search-form input:focus { border-color:var(--blue); box-shadow:0 0 0 3px rgba(35,103,209,.12); }
    .faq-wrap { overflow:hidden; }
    .accordion { margin:0; background:#fff; }
    .accordion-title { color:var(--ink); font-size:16px; font-weight:700; border:0; border-bottom:1px solid var(--line); padding:20px 24px; }
    .accordion-title:hover,.accordion-title:focus { color:var(--blue); background:var(--blue-soft); }
    .accordion-content { border:0; border-bottom:1px solid var(--line); padding:0 24px 20px; color:var(--text); font-size:15px; }
    .cta-band { background:#fff; padding:78px 0 90px; }
    .cta-box { display:grid; grid-template-columns:.75fr 1.25fr; gap:48px; align-items:start; }
    .cta-copy p { color:var(--text); }
    .privacy-note { color:var(--muted); font-size:13px; }
    .form-grid { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
    .form-field.full { grid-column:1/-1; }
    label { display:block; color:var(--ink); font-weight:700; font-size:14px; margin-bottom:6px; }
    input,select,textarea { width:100%; border:1px solid var(--line); border-radius:6px; background:#fff; padding:11px 13px; color:var(--ink); }
    textarea { min-height:106px; resize:vertical; }
    .check-line { display:flex; align-items:flex-start; gap:9px; color:var(--text); font-size:13px; margin:14px 0 20px; }
    .check-line input { width:17px; height:17px; margin-top:4px; }
    .form-message { display:none; margin-top:12px; padding:10px 13px; border-radius:6px; font-size:14px; }
    .form-message.success { display:block; color:#176e5c; background:#e7f7f2; }
    .form-message.error { display:block; color:#a33b35; background:#fff0ef; }
    .site-footer { background:#fff; border-top:1px solid var(--line); padding:48px 0 24px; }
    .footer-grid { display:grid; grid-template-columns:1.3fr .7fr .8fr; gap:48px; }
    .footer-desc { max-width:340px; color:var(--muted); font-size:14px; margin:16px 0 0; }
    .footer-title { color:var(--ink); font-weight:750; margin-bottom:12px; }
    .footer-links { list-style:none; margin:0; padding:0; }
    .footer-links li { margin-bottom:8px; }
    .footer-links a { color:var(--text); font-size:14px; }
    .footer-links a:hover { color:var(--blue); }
    .copyright { border-top:1px solid var(--line); margin-top:34px; padding-top:18px; color:var(--muted); font-size:13px; }
    @media screen and (max-width:1023px) {
      .grid-container { padding-left:24px; padding-right:24px; }
      .inner-hero-grid { gap:34px; }
      .guide-layout,.search-layout,.cta-box { grid-template-columns:1fr; }
      .search-layout { gap:22px; }
    }
    @media screen and (max-width:639px) {
      .grid-container { padding-left:16px; padding-right:16px; }
      .desktop-nav,.header-tools .search-link { display:none; }
      .menu-toggle { display:block; }
      .mobile-menu.is-open { display:block; }
      .inner-hero-grid { min-height:auto; grid-template-columns:1fr; padding-top:46px; padding-bottom:46px; gap:30px; }
      h1 { font-size:36px; }
      h2 { font-size:28px; }
      .hero-lead { font-size:16px; }
      .hero-image { height:230px; }
      .visual-note { right:10px; bottom:10px; font-size:13px; }
      .section { padding:60px 0; }
      .feature-entry { grid-template-columns:1fr; }
      .feature-entry img { min-height:210px; height:210px; }
      .entry-copy { padding:24px; }
      .guide-item { grid-template-columns:76px minmax(0,1fr) 18px; gap:12px; padding:12px; }
      .guide-item img { width:76px; height:64px; }
      .guide-item h3 { font-size:16px; }
      .guide-item p { font-size:14px; }
      .notice-bar { display:block; padding:15px 16px; }
      .notice-bar .tag { margin-top:10px; }
      .pagination a:nth-child(4),.pagination a:nth-child(5) { display:none; }
      .search-form { display:block; }
      .search-form .button { width:100%; margin-top:10px; }
      .form-grid,.footer-grid { grid-template-columns:1fr; gap:14px; }
      .form-field.full { grid-column:auto; }
      .footer-grid { gap:26px; }
    }
    @media (prefers-reduced-motion:reduce) {
      *,*::before,*::after { scroll-behavior:auto!important; transition:none!important; }
    }

/* roulang page: category2 */
:root {
      --blue:#2367d1;
      --blue-dark:#174d9f;
      --blue-soft:#eaf2ff;
      --ink:#172033;
      --text:#435066;
      --muted:#718096;
      --bg:#f6f9fd;
      --surface:#fff;
      --line:#dce7f5;
      --teal:#20a58a;
      --amber:#e7a83e;
      --radius:8px;
      --shadow:0 10px 28px rgba(31,70,120,.10);
      --shadow-hover:0 14px 34px rgba(31,70,120,.16);
      --ease:200ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--bg);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:16px;line-height:1.75;letter-spacing:0}
    a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease)}
    img{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    button,.button{cursor:pointer}
    .grid-container{max-width:1240px;padding-left:32px;padding-right:32px}
    .section{padding:96px 0}
    .section-alt{background:#fff}
    .section-head{max-width:720px;margin-bottom:42px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:700;letter-spacing:.04em;margin-bottom:12px}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--amber)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:50px;line-height:1.15;letter-spacing:0;margin-bottom:22px}
    h2{font-size:34px;line-height:1.3;margin-bottom:14px}
    h3{font-size:21px;line-height:1.4;margin-bottom:9px}
    .section-lead{color:var(--text);font-size:17px;margin-bottom:0}
    .site-header{position:relative;z-index:10;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);box-shadow:0 3px 14px rgba(31,70,120,.06)}
    .topbar{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;white-space:nowrap}
    .brand-mark{display:grid;place-items:center;width:34px;height:34px;color:#fff;background:var(--blue);border-radius:6px;font-size:14px}
    .brand-name{font-size:18px}
    .desktop-nav{display:flex;align-items:center;gap:6px;margin-right:auto;margin-left:28px}
    .desktop-nav a{position:relative;padding:22px 14px 19px;color:var(--text);font-size:14px;font-weight:650}
    .desktop-nav a:hover,.desktop-nav a.active{color:var(--blue)}
    .desktop-nav a.active:after{content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:3px;background:var(--blue)}
    .header-tools{display:flex;align-items:center;gap:12px}
    .search-link{display:inline-flex;align-items:center;gap:8px;color:var(--text);padding:9px 10px;font-size:14px}
    .search-link:hover{color:var(--blue)}
    .button{border:1px solid transparent;border-radius:6px;padding:11px 19px;font-size:14px;font-weight:750;line-height:1.4}
    .button.primary{color:#fff;background:var(--blue)}
    .button.primary:hover{color:#fff;background:var(--blue-dark);transform:translateY(-1px);box-shadow:0 7px 16px rgba(35,103,209,.22)}
    .button.hollow{color:var(--blue);border-color:#a9c5ec;background:#fff}
    .button.hollow:hover{color:var(--blue-dark);background:var(--blue-soft);border-color:var(--blue);transform:translateY(-1px)}
    .button:focus,.search-link:focus,.desktop-nav a:focus,.footer-links a:focus,.menu-toggle:focus{outline:2px solid var(--amber);outline-offset:3px}
    .menu-toggle{display:none;color:var(--ink);background:transparent;border:0;font-size:22px;padding:8px}
    .mobile-menu{display:none;border-top:1px solid var(--line);padding:12px 0 18px}
    .mobile-menu a{display:block;padding:10px 0;color:var(--text);font-weight:650}
    .mobile-menu a.active{color:var(--blue)}
    .inner-hero{background:#fff;border-bottom:1px solid var(--line);padding:68px 0 74px}
    .inner-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 390px;gap:70px;align-items:center}
    .inner-hero p{max-width:690px;color:var(--text);font-size:18px;line-height:1.8;margin-bottom:27px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .hero-image{width:100%;height:270px;aspect-ratio:4/3;object-fit:cover;border-radius:8px;box-shadow:var(--shadow)}
    .metric-panel{border-left:3px solid var(--blue);padding:20px 0 20px 24px;background:#fafdff}
    .metric-panel strong{display:block;color:var(--blue);font-size:35px;line-height:1.2}
    .metric-panel span{color:var(--muted);font-size:14px}
    .service-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:54px;align-items:start}
    .index-nav{position:sticky;top:24px;border-right:1px solid var(--line);padding-right:25px}
    .index-nav-title{font-size:13px;font-weight:800;color:var(--muted);margin-bottom:12px}
    .index-nav a{display:block;padding:11px 13px;border-left:2px solid transparent;color:var(--text);font-size:14px}
    .index-nav a:hover,.index-nav a.active{color:var(--blue);background:var(--blue-soft);border-left-color:var(--blue)}
    .group{margin-bottom:48px}
    .group:last-child{margin-bottom:0}
    .group-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:17px;padding-bottom:14px;border-bottom:1px solid var(--line)}
    .group-heading p{color:var(--muted);font-size:14px;margin:0}
    .service-list{position:relative;padding-left:25px}
    .service-list:before{content:"";position:absolute;left:7px;top:13px;bottom:18px;width:1px;background:#c5d8ef}
    .service-item{position:relative;display:flex;align-items:center;justify-content:space-between;gap:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:19px 21px;margin-bottom:12px;box-shadow:0 7px 20px rgba(31,70,120,.06);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
    .service-item:before{content:attr(data-step);position:absolute;left:-25px;top:23px;width:16px;height:16px;border:3px solid var(--bg);border-radius:50%;background:var(--blue);box-shadow:0 0 0 1px #9dbbe4}
    .service-item:hover{transform:translateX(2px);border-color:#a9c5ec;box-shadow:var(--shadow-hover)}
    .service-item h3{font-size:18px;margin-bottom:4px}
    .service-item p{color:var(--text);font-size:14px;margin:0;line-height:1.65}
    .item-meta{display:flex;align-items:center;gap:12px;flex-shrink:0;color:var(--muted);font-size:13px}
    .tag{display:inline-block;padding:3px 8px;border:1px solid #b8d1f1;border-radius:4px;color:var(--blue);background:var(--blue-soft);font-size:12px;white-space:nowrap}
    .item-arrow{color:var(--blue);font-size:17px}
    .compare-strip{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:var(--radius);margin-top:28px}
    .compare-cell{padding:21px 24px;border-right:1px solid var(--line)}
    .compare-cell:last-child{border-right:0}
    .compare-cell strong{display:block;font-size:23px;color:var(--ink);line-height:1.3}
    .compare-cell span{display:block;color:var(--muted);font-size:13px;margin-top:5px}
    .state-good{color:var(--teal)!important}
    .faq-wrap{max-width:820px}
    .accordion{background:transparent;margin:0;border:0}
    .accordion-item{border:1px solid var(--line);border-radius:6px;background:#fff;margin-bottom:10px;overflow:hidden}
    .accordion-title{border:0;color:var(--ink);font-size:16px;font-weight:700;padding:19px 50px 19px 20px}
    .accordion-title:hover{color:var(--blue);background:#fbfdff}
    .accordion-title:before{color:var(--blue);font-size:18px;right:20px}
    .accordion-content{border:0;padding:0 20px 20px;color:var(--text);font-size:15px;background:#fff}
    .cta-band{background:var(--blue-soft);padding:76px 0}
    .cta-grid{display:grid;grid-template-columns:4fr 8fr;gap:70px;align-items:start}
    .cta-copy p{color:var(--text);font-size:15px}
    .privacy-note{color:var(--muted);font-size:13px;margin-top:16px}
    .form-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
    label{display:block;color:var(--ink);font-size:14px;font-weight:700;margin-bottom:6px}
    input,select,textarea{width:100%;border:1px solid #bfd0e5;border-radius:6px;background:#fff;color:var(--ink);padding:10px 12px;box-shadow:none}
    input:focus,select:focus,textarea:focus{border-color:var(--blue);outline:2px solid rgba(35,103,209,.18)}
    textarea{min-height:104px;resize:vertical}
    .form-row{margin-bottom:16px}
    .form-message{display:none;margin:12px 0 0;padding:10px 12px;border-radius:5px;font-size:14px}
    .form-message.error{color:#a43a3a;background:#fff1f1;border:1px solid #edc3c3}
    .form-message.success{color:#14745f;background:#eaf8f4;border:1px solid #b9e3d8}
    .form-message.show{display:block}
    .site-footer{background:#fff;border-top:1px solid var(--line);padding:48px 0 25px}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
    .footer-desc{max-width:360px;color:var(--muted);font-size:14px;margin:18px 0 0}
    .footer-title{font-size:14px;font-weight:800;margin-bottom:12px}
    .footer-links{list-style:none;margin:0;padding:0}
    .footer-links li{margin-bottom:7px;color:var(--text);font-size:14px}
    .footer-links a:hover{color:var(--blue)}
    .copyright{border-top:1px solid var(--line);margin-top:35px;padding-top:18px;color:var(--muted);font-size:13px}
    .search-box{padding:28px 0 0}
    .search-box form{display:flex;max-width:680px;gap:10px}
    .search-box input{height:46px}
    @media(max-width:1023px){
      .grid-container{padding-left:24px;padding-right:24px}
      .inner-hero-grid{grid-template-columns:minmax(0,1fr) 310px;gap:36px}
      .service-layout{gap:32px}
      .cta-grid{gap:36px}
    }
    @media(max-width:639px){
      h1{font-size:36px}
      h2{font-size:29px}
      .section{padding:60px 0}
      .grid-container{padding-left:16px;padding-right:16px}
      .desktop-nav,.header-tools .search-link,.header-tools .button{display:none}
      .menu-toggle{display:block}
      .topbar{min-height:64px}
      .mobile-menu.is-open{display:block}
      .inner-hero{padding:48px 0 54px}
      .inner-hero-grid{grid-template-columns:1fr;gap:30px}
      .inner-hero p{font-size:16px}
      .hero-image{height:230px}
      .metric-panel{padding:16px 0 16px 18px}
      .service-layout{display:block}
      .index-nav{position:static;border-right:0;border-bottom:1px solid var(--line);padding:0 0 14px;margin-bottom:34px}
      .index-nav select{display:block}
      .index-nav a{display:none}
      .group-heading{display:block}
      .group-heading p{margin-top:5px}
      .service-list{padding-left:17px}
      .service-list:before{left:5px}
      .service-item{align-items:flex-start;padding:17px 15px;gap:10px}
      .service-item:before{left:-17px;top:22px;width:14px;height:14px}
      .item-meta{display:flex;flex-direction:column;align-items:flex-end;gap:5px}
      .item-meta small{display:none}
      .compare-strip{grid-template-columns:1fr;margin-top:22px}
      .compare-cell{border-right:0;border-bottom:1px solid var(--line);padding:16px 19px}
      .compare-cell:last-child{border-bottom:0}
      .cta-band{padding:56px 0}
      .cta-grid{grid-template-columns:1fr;gap:27px}
      .form-panel{padding:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .search-box form{display:block}
      .search-box .button{margin-top:10px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
    }