/* roulang page: index */
:root{
      --primary:#2f6fca;
      --primary-dark:#2458a7;
      --primary-soft:#eaf3ff;
      --cyan-soft:#edfafa;
      --ink:#172033;
      --muted:#667085;
      --line:#d9e3f2;
      --bg:#f6f9fd;
      --card:#ffffff;
      --success:#11a683;
      --warning:#f59e0b;
      --radius:8px;
      --shadow:0 14px 34px rgba(28,70,125,.10);
      --shadow-sm:0 8px 22px rgba(28,70,125,.08);
      --nav-width:252px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.75;letter-spacing:0}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    .app{min-height:100vh}
    .sidebar{position:fixed;inset:0 auto 0 0;width:var(--nav-width);background:rgba(255,255,255,.94);border-right:1px solid var(--line);box-shadow:6px 0 24px rgba(43,92,154,.05);z-index:40;padding:22px 18px;display:flex;flex-direction:column;gap:22px;backdrop-filter:blur(14px)}
    .brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);line-height:1.25}
    .brand-mark{width:36px;height:36px;border-radius:8px;background:linear-gradient(135deg,var(--primary),#63c7d7);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:var(--shadow-sm)}
    .nav-label{font-size:12px;color:#8a97ab;margin:10px 10px 6px}
    .nav-link{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:8px;color:#506078;font-weight:650;transition:.22s ease;border:1px solid transparent}
    .nav-link svg{width:18px;height:18px;stroke-width:2}
    .nav-link:hover,.nav-link:focus{background:var(--primary-soft);color:var(--primary-dark);outline:none;border-color:#cfe2ff}
    .nav-link.active{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(47,111,202,.22)}
    .side-note{margin-top:auto;padding:14px;border:1px solid var(--line);border-radius:8px;background:linear-gradient(180deg,#fff,#f2f7ff);font-size:13px;color:var(--muted)}
    .mobile-top{display:none;position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px);padding:12px 16px;align-items:center;justify-content:space-between}
    .menu-toggle{border:1px solid var(--line);background:#fff;border-radius:8px;width:42px;height:40px;display:grid;place-items:center;color:var(--primary);cursor:pointer;transition:.2s ease}
    .menu-toggle:hover{box-shadow:var(--shadow-sm);transform:translateY(-1px)}
    .mobile-drawer{display:none;background:#fff;border-bottom:1px solid var(--line);padding:10px 16px 16px;box-shadow:var(--shadow-sm)}
    .mobile-drawer.open{display:block}
    .main{margin-left:var(--nav-width)}
    .container{width:min(1160px,calc(100% - 48px));margin:0 auto}
    .section{padding:68px 0}
    .section-soft{background:#fff;border-top:1px solid #edf2f8;border-bottom:1px solid #edf2f8}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:750;color:var(--primary-dark);background:var(--primary-soft);border:1px solid #cfe2ff;border-radius:999px;padding:6px 10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;padding:11px 16px;font-weight:800;border:1px solid transparent;transition:.22s ease;cursor:pointer;white-space:nowrap}
    .btn-primary{background:var(--primary);color:#fff;box-shadow:0 12px 24px rgba(47,111,202,.20)}
    .btn-primary:hover,.btn-primary:focus{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 16px 28px rgba(47,111,202,.26);outline:none}
    .btn-secondary{background:#fff;color:var(--primary-dark);border-color:#bcd5f6}
    .btn-secondary:hover,.btn-secondary:focus{background:#f7fbff;transform:translateY(-2px);box-shadow:var(--shadow-sm);outline:none}
    .hero{position:relative;min-height:640px;display:flex;align-items:center;overflow:hidden;background:radial-gradient(circle at 20% 12%,rgba(89,181,202,.22),transparent 30%),linear-gradient(135deg,#f9fcff 0%,#eaf3ff 54%,#f8fbff 100%)}
    .hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(47,111,202,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(47,111,202,.08) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,rgba(0,0,0,.75),rgba(0,0,0,.1));pointer-events:none}
    .hero-stage{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;padding:72px 0}
    .hero h1{font-size:clamp(34px,5vw,62px);line-height:1.14;margin:18px 0 18px;font-weight:900;letter-spacing:0;color:#10213d}
    .hero p{font-size:18px;color:#475569;max-width:720px;margin:0 0 24px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 20px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}
    .point{background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:8px;padding:14px;box-shadow:var(--shadow-sm)}
    .point strong{display:block;font-size:22px;color:var(--primary-dark);line-height:1.2}
    .point span{font-size:13px;color:var(--muted)}
    .recommend-card{background:rgba(255,255,255,.92);border:1px solid #d7e5f8;border-radius:8px;padding:18px;box-shadow:var(--shadow);display:grid;gap:14px}
    .recommend-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
    .recommend-title{font-size:21px;font-weight:900;color:#10213d}
    .badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:5px 9px;font-size:12px;font-weight:800;background:#eef8fb;color:#127487;border:1px solid #cceef3}
    .option-list{display:grid;gap:10px}
    .option{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:13px;border-radius:8px;border:1px solid var(--line);background:#fbfdff}
    .option.active{border-color:#8bb9f0;background:#f1f7ff;box-shadow:inset 3px 0 0 var(--primary)}
    .option b{display:block;color:#1c2b43}
    .option small{color:var(--muted)}
    .tag{display:inline-flex;align-items:center;border-radius:999px;padding:4px 9px;font-size:12px;font-weight:750;background:#f2f6fb;color:#526173;border:1px solid #dce6f3}
    .matrix-scroll{display:flex;gap:16px;overflow-x:auto;padding:6px 2px 14px;scroll-snap-type:x mandatory}
    .matrix-card{min-width:260px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px;box-shadow:var(--shadow-sm);transition:.22s ease}
    .matrix-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:26px}
    .section-head h2{font-size:clamp(25px,3vw,36px);line-height:1.25;margin:0;color:#13233b;font-weight:900}
    .section-head p{margin:8px 0 0;color:var(--muted);max-width:680px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
    .card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:20px;box-shadow:var(--shadow-sm);transition:.22s ease}
    .card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .card h3{margin:12px 0 8px;font-size:19px;line-height:1.35;color:#172033;font-weight:850}
    .card p{margin:0;color:var(--muted)}
    .icon-box{width:42px;height:42px;border-radius:8px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;border:1px solid #d4e6ff}
    .info-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:start}
    .news-list{background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow-sm);overflow:hidden}
    .news-item{display:grid;grid-template-columns:110px 1fr auto;gap:16px;align-items:center;padding:18px;border-bottom:1px solid #edf2f8;transition:.2s ease}
    .news-item:last-child{border-bottom:0}
    .news-item:hover{background:#f8fbff}
    .date{font-size:13px;color:#7b8798;font-weight:750}
    .news-item h3{font-size:17px;margin:0 0 4px;font-weight:850;color:#172033}
    .news-item p{margin:0;color:var(--muted);font-size:14px}
    .side-panel{background:#fff;border:1px solid var(--line);border-radius:8px;padding:20px;box-shadow:var(--shadow-sm)}
    .compare{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow-sm)}
    table{width:100%;border-collapse:collapse;min-width:720px}
    th,td{padding:16px;text-align:left;border-bottom:1px solid #edf2f8;vertical-align:top}
    th{background:#f3f8ff;color:#20314c;font-weight:900}
    td{color:#566274}
    tr:last-child td{border-bottom:0}
    .chips{display:flex;flex-wrap:wrap;gap:10px}
    .chip{border:1px solid #cfe0f3;background:#fff;color:#40516b;border-radius:999px;padding:7px 11px;font-size:13px;font-weight:800;transition:.2s ease}
    .chip:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-1px)}
    .steps{counter-reset:step;display:grid;gap:14px}
    .step{counter-increment:step;display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px;box-shadow:var(--shadow-sm)}
    .step:before{content:counter(step);width:36px;height:36px;border-radius:8px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:900}
    .cta{background:linear-gradient(135deg,#1f5fac,#3d89df);color:#fff;border-radius:8px;padding:32px;display:flex;align-items:center;justify-content:space-between;gap:22px;box-shadow:0 18px 40px rgba(47,111,202,.22)}
    .cta h2{margin:0 0 8px;font-size:28px;font-weight:900}
    .cta p{margin:0;color:#e8f2ff;max-width:680px}
    .faq{display:grid;gap:12px}
    details{background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px 18px;box-shadow:var(--shadow-sm)}
    summary{cursor:pointer;font-weight:850;color:#172033;list-style:none;display:flex;justify-content:space-between;gap:16px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";color:var(--primary);font-size:22px;line-height:1}
    details[open] summary:after{content:"-"}
    details p{margin:12px 0 0;color:var(--muted)}
    footer{background:#fff;border-top:1px solid var(--line);padding:34px 0;color:#617086}
    .footer-grid{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
    .footer-links{display:flex;gap:14px;flex-wrap:wrap}
    .footer-links a{color:#526173;font-weight:700}
    .footer-links a:hover{color:var(--primary)}
    .focus-ring:focus{outline:3px solid rgba(47,111,202,.22);outline-offset:3px}
    @media (max-width:1024px){
      .sidebar{display:none}.mobile-top{display:flex}.main{margin-left:0}.container{width:min(100% - 32px,980px)}
      .hero-stage{grid-template-columns:1fr}.hero{min-height:auto}.grid-3{grid-template-columns:repeat(2,1fr)}.info-layout{grid-template-columns:1fr}.section{padding:54px 0}
    }
    @media (max-width:768px){
      .section-head{display:block}.hero-stage{padding:50px 0}.hero-points{grid-template-columns:1fr}.grid-3,.grid-2{grid-template-columns:1fr}.news-item{grid-template-columns:1fr;gap:8px}.cta{display:block}.cta .btn{margin-top:18px}.recommend-top{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:520px){
      .container{width:min(100% - 24px,520px)}.hero h1{font-size:32px}.hero p{font-size:16px}.section{padding:42px 0}.btn{width:100%;white-space:normal}.hero-actions{display:grid}.option{align-items:flex-start;flex-direction:column}.matrix-card{min-width:228px}.card,.side-panel,.recommend-card{padding:16px}.cta{padding:24px}.footer-grid{display:block}.footer-links{margin-top:14px}
    }

/* roulang page: category1 */
:root {
      --blue-900: #17345f;
      --blue-800: #1f4f86;
      --blue-700: #2563a6;
      --blue-600: #2f75bd;
      --blue-100: #eaf4ff;
      --blue-50: #f5f9ff;
      --cyan-100: #e8fbff;
      --ink: #132033;
      --muted: #627187;
      --soft: #f8fbff;
      --line: #dce7f5;
      --white: #ffffff;
      --shadow-sm: 0 8px 24px rgba(31, 79, 134, .08);
      --shadow-md: 0 16px 42px rgba(31, 79, 134, .13);
      --radius: 8px;
      --sidebar: 248px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color: var(--ink);
      line-height: 1.72;
      background: linear-gradient(180deg, #f7fbff 0%, #ffffff 42%, #f6faff 100%);
      text-rendering: optimizeLegibility;
    }

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

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

    button, input, select {
      font: inherit;
    }

    .focus-ring:focus-visible,
    button:focus-visible,
    input:focus-visible,
    select:focus-visible,
    a:focus-visible {
      outline: 3px solid rgba(47, 117, 189, .28);
      outline-offset: 3px;
    }

    .app-shell {
      min-height: 100vh;
    }

    .sidebar {
      position: fixed;
      inset: 0 auto 0 0;
      width: var(--sidebar);
      background: rgba(255, 255, 255, .92);
      border-right: 1px solid var(--line);
      box-shadow: 10px 0 40px rgba(31, 79, 134, .06);
      backdrop-filter: blur(14px);
      z-index: 50;
      padding: 22px 18px;
      display: flex;
      flex-direction: column;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      color: var(--blue-900);
      line-height: 1.25;
    }

    .brand-mark {
      width: 36px;
      height: 36px;
      border-radius: var(--radius);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      background: linear-gradient(135deg, var(--blue-700), #62bdd2);
      box-shadow: 0 10px 22px rgba(37, 99, 166, .2);
      flex: 0 0 auto;
    }

    .nav-label {
      margin: 8px 10px 10px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0;
    }

    nav {
      display: grid;
      gap: 8px;
    }

    .nav-link {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 11px 12px;
      border-radius: var(--radius);
      color: #42536c;
      font-weight: 700;
      border: 1px solid transparent;
      transition: transform .18s ease, background .18s ease, color .18s ease, box-shadow .18s ease, border-color .18s ease;
    }

    .nav-link svg {
      width: 19px;
      height: 19px;
      stroke-width: 2;
      flex: 0 0 auto;
    }

    .nav-link:hover {
      color: var(--blue-800);
      background: var(--blue-50);
      border-color: #e0ecf9;
      transform: translateY(-1px);
    }

    .nav-link.active {
      color: var(--blue-900);
      background: var(--blue-100);
      border-color: #c7def6;
      box-shadow: var(--shadow-sm);
    }

    .side-note {
      margin-top: auto;
      padding: 14px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: linear-gradient(180deg, #ffffff, #f4f9ff);
      color: var(--muted);
      font-size: 13px;
    }

    .mobile-topbar {
      display: none;
      position: sticky;
      top: 0;
      z-index: 60;
      background: rgba(255, 255, 255, .94);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(12px);
      padding: 12px 16px;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .menu-toggle {
      width: 42px;
      height: 42px;
      border-radius: var(--radius);
      border: 1px solid var(--line);
      background: #fff;
      color: var(--blue-800);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: background .18s ease, box-shadow .18s ease;
    }

    .menu-toggle:hover {
      background: var(--blue-50);
      box-shadow: var(--shadow-sm);
    }

    .drawer-check {
      position: absolute;
      opacity: 0;
      pointer-events: none;
    }

    .drawer-mask {
      display: none;
    }

    .main {
      margin-left: var(--sidebar);
      min-width: 0;
    }

    .container {
      width: min(1180px, calc(100% - 48px));
      margin: 0 auto;
    }

    .page-head {
      position: relative;
      padding: 46px 0 30px;
      overflow: hidden;
      background:
        linear-gradient(120deg, rgba(234, 244, 255, .95), rgba(255, 255, 255, .9)),
        radial-gradient(circle at 88% 18%, rgba(108, 189, 214, .24), transparent 34%);
      border-bottom: 1px solid var(--line);
    }

    .crumbs {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--muted);
      font-size: 14px;
      margin-bottom: 16px;
      flex-wrap: wrap;
    }

    .crumbs a:hover {
      color: var(--blue-800);
    }

    .head-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 28px;
      align-items: end;
    }

    .kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 10px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid #d8e7f8;
      color: var(--blue-800);
      font-weight: 800;
      font-size: 13px;
      box-shadow: var(--shadow-sm);
    }

    .kicker::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: #32a7c8;
      box-shadow: 0 0 0 5px rgba(50, 167, 200, .14);
    }

    h1 {
      margin: 16px 0 12px;
      font-size: clamp(30px, 4vw, 52px);
      line-height: 1.14;
      letter-spacing: 0;
      color: var(--blue-900);
      font-weight: 900;
    }

    .lead {
      max-width: 760px;
      color: #4d5f78;
      font-size: 17px;
      margin: 0;
    }

    .head-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 22px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 42px;
      padding: 10px 16px;
      border-radius: var(--radius);
      border: 1px solid transparent;
      font-weight: 800;
      cursor: pointer;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
      white-space: nowrap;
    }

    .btn svg {
      width: 18px;
      height: 18px;
      stroke-width: 2.2;
    }

    .btn-primary {
      background: var(--blue-700);
      color: #fff;
      box-shadow: 0 12px 26px rgba(37, 99, 166, .2);
    }

    .btn-primary:hover {
      background: var(--blue-800);
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }

    .btn-secondary {
      background: #fff;
      color: var(--blue-800);
      border-color: #bad5f0;
    }

    .btn-secondary:hover {
      background: var(--blue-50);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .btn-soft {
      background: #eef7ff;
      color: var(--blue-800);
      border-color: #d5e7f7;
    }

    .btn-soft:hover {
      background: #e4f2ff;
      box-shadow: var(--shadow-sm);
    }

    .summary-panel {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(255, 255, 255, .88);
      box-shadow: var(--shadow-md);
      padding: 18px;
    }

    .count-row {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
    }

    .count-card {
      padding: 13px;
      border-radius: var(--radius);
      background: var(--blue-50);
      border: 1px solid #dbeafa;
    }

    .count-card strong {
      display: block;
      color: var(--blue-900);
      font-size: 24px;
      line-height: 1.1;
    }

    .count-card span {
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    .sort-box {
      margin-top: 12px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 12px;
      border-radius: var(--radius);
      border: 1px solid var(--line);
      background: #fff;
      color: var(--muted);
      font-size: 14px;
    }

    .sort-box select {
      border: 1px solid #cfe0f2;
      border-radius: var(--radius);
      background: #fff;
      color: var(--blue-900);
      padding: 7px 28px 7px 10px;
      font-weight: 700;
    }

    .section {
      padding: 34px 0;
    }

    .index-layout {
      display: grid;
      grid-template-columns: 260px minmax(0, 1fr);
      gap: 24px;
      align-items: start;
    }

    .filter-panel {
      position: sticky;
      top: 24px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow-sm);
      padding: 16px;
    }

    .filter-title {
      font-weight: 900;
      color: var(--blue-900);
      margin-bottom: 12px;
    }

    .search-box {
      position: relative;
      margin-bottom: 16px;
    }

    .search-box input {
      width: 100%;
      border: 1px solid #cfe0f2;
      border-radius: var(--radius);
      padding: 11px 12px;
      color: var(--ink);
      background: #fbfdff;
    }

    .search-box input::placeholder {
      color: #8a9ab0;
    }

    .filter-group {
      padding: 14px 0;
      border-top: 1px solid #edf3fa;
    }

    .filter-group:first-of-type {
      border-top: 0;
      padding-top: 0;
    }

    .filter-group h2 {
      margin: 0 0 10px;
      color: #2b3e57;
      font-size: 14px;
      font-weight: 900;
    }

    .chip-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border: 1px solid #d5e4f3;
      border-radius: 999px;
      padding: 6px 10px;
      background: #fff;
      color: #53657d;
      font-size: 13px;
      font-weight: 800;
      transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
    }

    .chip:hover,
    .chip.active {
      color: var(--blue-900);
      background: var(--blue-100);
      border-color: #bcd7f2;
      transform: translateY(-1px);
    }

    .chip-dot {
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: #32a7c8;
    }

    .quick-stat {
      display: grid;
      gap: 9px;
      margin-top: 8px;
    }

    .quick-stat li {
      list-style: none;
      display: flex;
      justify-content: space-between;
      gap: 10px;
      color: var(--muted);
      font-size: 14px;
      padding: 8px 0;
      border-bottom: 1px dashed #dce7f5;
    }

    .quick-stat strong {
      color: var(--blue-900);
    }

    .content-area {
      min-width: 0;
    }

    .toolbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 16px;
      padding: 12px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .toolbar-title {
      font-weight: 900;
      color: var(--blue-900);
    }

    .toolbar-meta {
      color: var(--muted);
      font-size: 14px;
    }

    .entry-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
    }

    .entry-card {
      min-height: 236px;
      display: flex;
      flex-direction: column;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow-sm);
      padding: 18px;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }

    .entry-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: #bdd8f3;
    }

    .card-top {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 12px;
    }

    .entry-card h3 {
      margin: 0;
      color: var(--blue-900);
      font-size: 18px;
      line-height: 1.35;
      font-weight: 900;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      flex: 0 0 auto;
      padding: 5px 9px;
      border-radius: 999px;
      border: 1px solid #cfe2f4;
      background: var(--blue-50);
      color: var(--blue-800);
      font-size: 12px;
      font-weight: 900;
      white-space: nowrap;
    }

    .entry-card p {
      margin: 0;
      color: #53657d;
      font-size: 14px;
      flex: 1;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 7px;
      margin: 14px 0;
    }

    .tag {
      padding: 4px 8px;
      border-radius: 6px;
      background: #f1f7fd;
      color: #4d6683;
      border: 1px solid #dceaf7;
      font-size: 12px;
      font-weight: 800;
    }

    .card-foot {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-top: auto;
      padding-top: 12px;
      border-top: 1px solid #edf3fa;
    }

    .status {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
    }

    .status::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: #22a6b3;
    }

    .light-action {
      color: var(--blue-800);
      font-weight: 900;
      font-size: 14px;
      transition: color .18s ease;
    }

    .light-action:hover {
      color: var(--blue-900);
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .load-more {
      display: flex;
      justify-content: center;
      margin-top: 22px;
    }

    .band {
      background: linear-gradient(180deg, #ffffff, #f5faff);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 18px;
      margin-bottom: 20px;
    }

    .section-head h2 {
      margin: 0;
      color: var(--blue-900);
      font-size: clamp(24px, 3vw, 34px);
      line-height: 1.25;
      font-weight: 900;
    }

    .section-head p {
      margin: 6px 0 0;
      color: var(--muted);
      max-width: 680px;
    }

    .guide-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 18px;
    }

    .guide-panel {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow-sm);
      padding: 20px;
    }

    .guide-panel h3 {
      margin: 0 0 12px;
      color: var(--blue-900);
      font-size: 20px;
      font-weight: 900;
    }

    .step-list {
      display: grid;
      gap: 12px;
      margin: 0;
      padding: 0;
    }

    .step-list li {
      list-style: none;
      display: grid;
      grid-template-columns: 32px minmax(0, 1fr);
      gap: 12px;
      align-items: start;
      padding: 12px;
      border-radius: var(--radius);
      background: var(--blue-50);
      border: 1px solid #dceafa;
    }

    .step-num {
      width: 32px;
      height: 32px;
      border-radius: var(--radius);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      background: var(--blue-700);
      font-weight: 900;
    }

    .step-list strong {
      display: block;
      color: #223a58;
      margin-bottom: 2px;
    }

    .step-list span {
      color: var(--muted);
      font-size: 14px;
    }

    .related-grid {
      display: grid;
      gap: 12px;
    }

    .related-item {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      padding: 14px;
      border: 1px solid #dceafa;
      border-radius: var(--radius);
      background: #fbfdff;
      transition: transform .18s ease, box-shadow .18s ease;
    }

    .related-item:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .related-item strong {
      color: var(--blue-900);
    }

    .related-item span {
      color: var(--muted);
      font-size: 14px;
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    details {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    summary {
      cursor: pointer;
      padding: 16px 18px;
      color: var(--blue-900);
      font-weight: 900;
      list-style: none;
      display: flex;
      justify-content: space-between;
      gap: 14px;
    }

    summary::-webkit-details-marker {
      display: none;
    }

    summary::after {
      content: "+";
      color: var(--blue-700);
      font-size: 22px;
      line-height: 1;
      transition: transform .18s ease;
    }

    details[open] summary::after {
      transform: rotate(45deg);
    }

    details p {
      margin: 0;
      padding: 0 18px 18px;
      color: var(--muted);
    }

    .cta-strip {
      border: 1px solid #cfe0f2;
      border-radius: var(--radius);
      background:
        linear-gradient(135deg, rgba(37, 99, 166, .95), rgba(57, 150, 185, .92)),
        linear-gradient(180deg, #fff, #fff);
      color: #fff;
      padding: 26px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 22px;
      align-items: center;
      box-shadow: var(--shadow-md);
    }

    .cta-strip h2 {
      margin: 0 0 8px;
      font-size: clamp(24px, 3vw, 34px);
      line-height: 1.25;
      font-weight: 900;
    }

    .cta-strip p {
      margin: 0;
      color: rgba(255, 255, 255, .88);
    }

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

    .cta-strip .btn-secondary {
      border-color: rgba(255, 255, 255, .65);
      background: #fff;
      color: var(--blue-800);
    }

    footer {
      margin-left: var(--sidebar);
      border-top: 1px solid var(--line);
      background: #fff;
      padding: 26px 0;
      color: var(--muted);
    }

    .footer-grid {
      display: flex;
      justify-content: space-between;
      gap: 24px;
      align-items: center;
    }

    .footer-links {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .footer-links a {
      color: #52657e;
      font-weight: 800;
      transition: color .18s ease;
    }

    .footer-links a:hover {
      color: var(--blue-800);
    }

    .mt-3 {
      margin-top: .75rem;
    }

    .mb-0 {
      margin-bottom: 0;
    }

    @media (max-width: 1024px) {
      :root {
        --sidebar: 218px;
      }

      .container {
        width: min(100% - 36px, 980px);
      }

      .head-grid,
      .index-layout,
      .guide-grid {
        grid-template-columns: 1fr;
      }

      .filter-panel {
        position: static;
      }

      .filter-panel .filter-stack {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
      }
    }

    @media (max-width: 768px) {
      .mobile-topbar {
        display: flex;
      }

      .sidebar {
        transform: translateX(-105%);
        transition: transform .22s ease;
        width: min(86vw, 310px);
      }

      .drawer-check:checked ~ .sidebar {
        transform: translateX(0);
      }

      .drawer-mask {
        position: fixed;
        inset: 0;
        background: rgba(19, 32, 51, .36);
        z-index: 45;
      }

      .drawer-check:checked ~ .drawer-mask {
        display: block;
      }

      .main,
      footer {
        margin-left: 0;
      }

      .page-head {
        padding-top: 28px;
      }

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

      .toolbar,
      .section-head,
      .cta-strip,
      .footer-grid {
        align-items: stretch;
        flex-direction: column;
        display: flex;
      }

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

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

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

    @media (max-width: 520px) {
      .container {
        width: min(100% - 28px, 100%);
      }

      h1 {
        font-size: 30px;
      }

      .head-actions,
      .cta-actions {
        width: 100%;
      }

      .btn {
        width: 100%;
      }

      .card-top,
      .card-foot,
      .related-item,
      .sort-box {
        align-items: flex-start;
        flex-direction: column;
      }

      .count-row {
        grid-template-columns: 1fr;
      }

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

      .mobile-topbar .brand span:last-child {
        max-width: 190px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }
    }

/* roulang page: category2 */
:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --primary-soft: #dbeafe;
      --accent: #0891b2;
      --ink: #102033;
      --muted: #64748b;
      --weak: #94a3b8;
      --line: #dbe5f0;
      --panel: #ffffff;
      --bg: #f6f9fd;
      --bg-soft: #edf6ff;
      --success: #0f9f6e;
      --warning: #f59e0b;
      --radius: 8px;
      --shadow: 0 12px 32px rgba(30, 64, 175, .10);
      --shadow-sm: 0 6px 18px rgba(15, 23, 42, .07);
      --sidebar: 264px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      color: var(--ink);
      background:
        linear-gradient(180deg, #f8fbff 0%, #f4f8fd 46%, #ffffff 100%);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      line-height: 1.75;
      letter-spacing: 0;
      text-rendering: optimizeLegibility;
    }

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

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

    button, input {
      font: inherit;
    }

    .focus-ring:focus-visible,
    button:focus-visible,
    a:focus-visible,
    input:focus-visible {
      outline: 3px solid rgba(37, 99, 235, .28);
      outline-offset: 3px;
    }

    .app-shell {
      min-height: 100vh;
    }

    .sidebar {
      position: fixed;
      inset: 0 auto 0 0;
      z-index: 50;
      width: var(--sidebar);
      padding: 22px 18px;
      background: rgba(255, 255, 255, .94);
      border-right: 1px solid var(--line);
      box-shadow: 8px 0 26px rgba(15, 23, 42, .05);
      backdrop-filter: blur(14px);
      display: flex;
      flex-direction: column;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      font-weight: 800;
      color: var(--ink);
      line-height: 1.25;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      flex: 0 0 38px;
      display: grid;
      place-items: center;
      border-radius: var(--radius);
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 10px 20px rgba(37, 99, 235, .22);
    }

    .nav-label {
      margin: 6px 10px 8px;
      color: var(--weak);
      font-size: 12px;
      font-weight: 700;
    }

    nav {
      display: grid;
      gap: 8px;
    }

    .nav-link {
      display: flex;
      align-items: center;
      gap: 10px;
      min-height: 44px;
      padding: 10px 12px;
      border-radius: var(--radius);
      color: #475569;
      font-weight: 700;
      transition: color .2s ease, background .2s ease, transform .2s ease, box-shadow .2s ease;
    }

    .nav-link svg {
      width: 19px;
      height: 19px;
      stroke-width: 2;
      flex: 0 0 19px;
    }

    .nav-link:hover {
      color: var(--primary);
      background: #eef6ff;
      transform: translateY(-1px);
    }

    .nav-link.active {
      color: var(--primary-dark);
      background: var(--primary-soft);
      box-shadow: inset 0 0 0 1px rgba(37, 99, 235, .18);
    }

    .sidebar-note {
      margin-top: auto;
      padding: 14px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #f8fbff;
      color: var(--muted);
      font-size: 13px;
    }

    .mobile-topbar {
      display: none;
      position: sticky;
      top: 0;
      z-index: 60;
      padding: 12px 16px;
      background: rgba(255, 255, 255, .96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(14px);
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .menu-button {
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      color: var(--primary);
      display: grid;
      place-items: center;
      cursor: pointer;
      transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
    }

    .menu-button:hover {
      background: #eef6ff;
      transform: translateY(-1px);
      box-shadow: var(--shadow-sm);
    }

    .drawer {
      display: none;
      position: fixed;
      inset: 67px 12px auto 12px;
      z-index: 70;
      padding: 14px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow);
    }

    .drawer.open {
      display: block;
    }

    .page {
      margin-left: var(--sidebar);
      min-height: 100vh;
    }

    .container {
      width: min(1180px, calc(100% - 48px));
      margin: 0 auto;
    }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 48px 0 36px;
      background:
        radial-gradient(circle at 72% 18%, rgba(8, 145, 178, .16), transparent 32%),
        linear-gradient(135deg, #f7fbff 0%, #eef6ff 62%, #ffffff 100%);
      border-bottom: 1px solid var(--line);
    }

    .hero-wrap {
      display: grid;
      grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr);
      gap: 28px;
      align-items: stretch;
    }

    .hero-copy {
      padding: 18px 0;
    }

    .crumb {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary-dark);
      background: #fff;
      border: 1px solid rgba(37, 99, 235, .18);
      border-radius: 999px;
      padding: 7px 12px;
      font-size: 13px;
      font-weight: 800;
      box-shadow: var(--shadow-sm);
    }

    .crumb-dot {
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: var(--success);
      box-shadow: 0 0 0 5px rgba(15, 159, 110, .12);
    }

    h1 {
      margin: 18px 0 14px;
      max-width: 780px;
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.14;
      font-weight: 900;
      letter-spacing: 0;
      color: #0f1f33;
    }

    .hero-sub {
      max-width: 760px;
      color: #475569;
      font-size: 18px;
      line-height: 1.9;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 11px 18px;
      border-radius: var(--radius);
      border: 1px solid transparent;
      font-weight: 800;
      line-height: 1.2;
      cursor: pointer;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
    }

    .btn svg {
      width: 18px;
      height: 18px;
      stroke-width: 2.2;
    }

    .btn-primary {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 12px 24px rgba(37, 99, 235, .22);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 16px 28px rgba(37, 99, 235, .28);
    }

    .btn-secondary {
      color: var(--primary-dark);
      background: #fff;
      border-color: rgba(37, 99, 235, .28);
    }

    .btn-secondary:hover {
      background: #f0f7ff;
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .visual-panel {
      position: relative;
      min-height: 430px;
      border: 1px solid rgba(191, 219, 254, .9);
      border-radius: 12px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.9), rgba(245,250,255,.96)),
        repeating-linear-gradient(90deg, rgba(37,99,235,.08) 0 1px, transparent 1px 78px);
      box-shadow: var(--shadow);
      padding: 18px;
      overflow: hidden;
    }

    .burst {
      position: absolute;
      right: 18px;
      top: 18px;
      z-index: 2;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 9px 12px;
      border-radius: var(--radius);
      color: #fff;
      background: #0f766e;
      font-weight: 900;
      box-shadow: 0 12px 24px rgba(15, 118, 110, .24);
    }

    .visual-board {
      position: absolute;
      inset: 74px 18px 18px;
      display: grid;
      grid-template-rows: auto 1fr auto;
      gap: 14px;
    }

    .scan-line {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 12px;
      align-items: center;
      padding: 14px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .scan-title {
      font-weight: 900;
      color: #16304f;
    }

    .scan-text {
      color: var(--muted);
      font-size: 13px;
    }

    .scan-badge {
      padding: 6px 10px;
      border-radius: 999px;
      color: var(--primary-dark);
      background: var(--primary-soft);
      font-size: 12px;
      font-weight: 900;
      white-space: nowrap;
    }

    .metric-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .metric-card {
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(255,255,255,.86);
      box-shadow: var(--shadow-sm);
    }

    .metric-card strong {
      display: block;
      font-size: 28px;
      line-height: 1;
      color: var(--primary-dark);
    }

    .metric-card span {
      display: block;
      margin-top: 8px;
      color: var(--muted);
      font-size: 13px;
    }

    .section {
      padding: 54px 0;
    }

    .section.alt {
      background: #f8fbff;
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, .82fr) minmax(240px, .18fr);
      gap: 20px;
      align-items: end;
      margin-bottom: 22px;
    }

    .eyebrow {
      display: inline-flex;
      width: fit-content;
      align-items: center;
      gap: 8px;
      color: var(--accent);
      font-size: 13px;
      font-weight: 900;
      margin-bottom: 8px;
    }

    .section-title {
      margin: 0;
      font-size: clamp(24px, 3vw, 36px);
      line-height: 1.25;
      font-weight: 900;
      color: #102033;
    }

    .section-desc {
      margin: 8px 0 0;
      color: var(--muted);
      max-width: 760px;
    }

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

    .tag,
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid rgba(37, 99, 235, .18);
      background: #fff;
      color: var(--primary-dark);
      font-size: 12px;
      font-weight: 800;
      white-space: nowrap;
    }

    .tag-muted {
      color: #64748b;
      border-color: var(--line);
      background: #f8fafc;
    }

    .topic-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 18px;
      align-items: stretch;
    }

    .topic-main,
    .side-card,
    .info-card,
    .compare-card,
    .faq-item,
    .cta-band {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--panel);
      box-shadow: var(--shadow-sm);
    }

    .topic-main {
      padding: 22px;
      min-height: 320px;
    }

    .topic-title-row {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 18px;
    }

    .topic-main h2,
    .side-card h3,
    .info-card h3,
    .compare-card h3 {
      margin: 0;
      color: #123052;
      font-weight: 900;
      line-height: 1.35;
    }

    .topic-list {
      display: grid;
      gap: 12px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .topic-list li {
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 12px;
      align-items: start;
      padding: 14px;
      border: 1px solid #e6eef8;
      border-radius: var(--radius);
      background: #fbfdff;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .topic-list li:hover {
      transform: translateY(-2px);
      border-color: rgba(37, 99, 235, .26);
      box-shadow: var(--shadow-sm);
    }

    .num {
      width: 30px;
      height: 30px;
      display: grid;
      place-items: center;
      border-radius: var(--radius);
      color: #fff;
      background: var(--primary);
      font-weight: 900;
      font-size: 13px;
    }

    .topic-list strong {
      display: block;
      color: #143354;
      line-height: 1.4;
    }

    .topic-list p {
      margin: 3px 0 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .status-dot {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-top: 3px;
      color: var(--success);
      font-size: 12px;
      font-weight: 900;
      white-space: nowrap;
    }

    .status-dot::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: currentColor;
    }

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

    .side-card {
      padding: 20px;
    }

    .side-card p {
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 14px;
    }

    .mini-stat {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 14px;
    }

    .mini-stat div {
      padding: 12px;
      border-radius: var(--radius);
      background: #f1f7ff;
      border: 1px solid #dbeafe;
    }

    .mini-stat strong {
      display: block;
      color: var(--primary-dark);
      font-size: 22px;
      line-height: 1;
    }

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

    .matrix-scroll {
      display: grid;
      grid-auto-flow: column;
      grid-auto-columns: minmax(260px, 1fr);
      gap: 14px;
      overflow-x: auto;
      padding: 2px 2px 12px;
      scrollbar-color: #bfdbfe #eef6ff;
    }

    .info-card {
      padding: 18px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .info-card:hover,
    .compare-card:hover {
      transform: translateY(-3px);
      border-color: rgba(37, 99, 235, .26);
      box-shadow: var(--shadow);
    }

    .info-card p,
    .compare-card p {
      color: var(--muted);
      margin: 8px 0 0;
      font-size: 14px;
    }

    .card-top {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 12px;
    }

    .icon-box {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: var(--radius);
      color: var(--primary);
      background: #eef6ff;
      border: 1px solid #dbeafe;
    }

    .icon-box svg {
      width: 22px;
      height: 22px;
      stroke-width: 2;
    }

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

    .compare-card {
      padding: 20px;
    }

    .compare-list {
      display: grid;
      gap: 10px;
      padding: 0;
      margin: 14px 0 0;
      list-style: none;
    }

    .compare-list li {
      display: flex;
      gap: 8px;
      color: #475569;
      font-size: 14px;
      line-height: 1.6;
    }

    .compare-list li::before {
      content: "";
      width: 8px;
      height: 8px;
      flex: 0 0 8px;
      margin-top: 8px;
      border-radius: 999px;
      background: var(--accent);
    }

    .split-layout {
      display: grid;
      grid-template-columns: .78fr 1.22fr;
      gap: 18px;
      align-items: start;
    }

    .filter-panel {
      position: sticky;
      top: 24px;
      padding: 20px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .filter-panel h3 {
      margin: 0 0 12px;
      font-weight: 900;
      color: #123052;
    }

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

    .chip {
      border: 1px solid var(--line);
      border-radius: 999px;
      padding: 7px 11px;
      background: #fff;
      color: #475569;
      font-size: 13px;
      font-weight: 800;
      transition: background .2s ease, border-color .2s ease, color .2s ease, transform .2s ease;
    }

    .chip:hover,
    .chip.active {
      color: var(--primary-dark);
      border-color: rgba(37, 99, 235, .28);
      background: var(--primary-soft);
      transform: translateY(-1px);
    }

    .entry-list {
      display: grid;
      gap: 14px;
    }

    .entry-item {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 18px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow-sm);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .entry-item:hover {
      transform: translateY(-2px);
      border-color: rgba(37, 99, 235, .26);
      box-shadow: var(--shadow);
    }

    .entry-item h3 {
      margin: 0;
      color: #123052;
      font-weight: 900;
      line-height: 1.35;
    }

    .entry-item p {
      margin: 6px 0 12px;
      color: var(--muted);
      font-size: 14px;
    }

    .entry-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .entry-action {
      min-width: 132px;
      white-space: nowrap;
    }

    .flow {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    .flow-step {
      position: relative;
      padding: 18px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .flow-step strong {
      display: block;
      margin-top: 12px;
      color: #123052;
      font-weight: 900;
    }

    .flow-step p {
      margin: 6px 0 0;
      color: var(--muted);
      font-size: 14px;
    }

    .faq-grid {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      overflow: hidden;
    }

    .faq-item summary {
      list-style: none;
      cursor: pointer;
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      font-weight: 900;
      color: #123052;
      transition: background .2s ease, color .2s ease;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::after {
      content: "+";
      width: 26px;
      height: 26px;
      display: grid;
      place-items: center;
      border-radius: 999px;
      color: var(--primary);
      background: #eef6ff;
      flex: 0 0 26px;
    }

    .faq-item[open] summary {
      color: var(--primary-dark);
      background: #f4f9ff;
    }

    .faq-item[open] summary::after {
      content: "−";
    }

    .faq-item p {
      margin: 0;
      padding: 0 20px 18px;
      color: var(--muted);
      line-height: 1.8;
    }

    .cta-band {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 26px;
      background:
        linear-gradient(135deg, rgba(37, 99, 235, .08), rgba(8, 145, 178, .08)),
        #fff;
    }

    .cta-band h2 {
      margin: 0;
      color: #102033;
      font-size: clamp(24px, 3vw, 34px);
      line-height: 1.25;
      font-weight: 900;
    }

    .cta-band p {
      margin: 8px 0 0;
      color: var(--muted);
    }

    footer {
      margin-left: var(--sidebar);
      padding: 30px 0;
      border-top: 1px solid var(--line);
      background: #fff;
      color: var(--muted);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: flex-end;
    }

    .footer-links a {
      color: #475569;
      font-weight: 700;
      transition: color .2s ease;
    }

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

    @media (max-width: 1180px) {
      .hero-wrap,
      .topic-grid,
      .split-layout {
        grid-template-columns: 1fr;
      }

      .filter-panel {
        position: static;
      }

      .compare-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .flow {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 1024px) {
      .sidebar {
        display: none;
      }

      .mobile-topbar {
        display: flex;
      }

      .page,
      footer {
        margin-left: 0;
      }

      .container {
        width: min(100% - 32px, 920px);
      }

      .hero {
        padding-top: 30px;
      }
    }

    @media (max-width: 768px) {
      .section {
        padding: 42px 0;
      }

      .section-head {
        grid-template-columns: 1fr;
      }

      .badge-row {
        justify-content: flex-start;
      }

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

      .metric-grid,
      .compare-grid,
      .mini-stat,
      .flow,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .entry-item,
      .cta-band,
      .topic-list li {
        grid-template-columns: 1fr;
      }

      .entry-action {
        width: 100%;
      }

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

    @media (max-width: 520px) {
      .container {
        width: min(100% - 24px, 100%);
      }

      h1 {
        font-size: 32px;
      }

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

      .btn {
        width: 100%;
      }

      .hero-actions {
        width: 100%;
      }

      .matrix-scroll {
        grid-auto-columns: minmax(236px, 86%);
      }

      .visual-board {
        inset: 70px 12px 12px;
      }

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

      .topic-main,
      .side-card,
      .info-card,
      .compare-card,
      .filter-panel,
      .entry-item,
      .flow-step,
      .cta-band {
        padding: 16px;
      }
    }