/* roulang page: index */
:root {
      --brand: #2563eb;
      --brand-dark: #1e40af;
      --cyan: #0e9fba;
      --ink: #17243d;
      --muted: #65738b;
      --line: #e3eaf3;
      --cloud: #f5f8fc;
      --white: #ffffff;
      --radius: 20px;
      --shadow: 0 16px 45px rgba(36, 64, 108, .10);
      --shadow-sm: 0 8px 28px rgba(36, 64, 108, .08);
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: #fbfdff;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; }
    img { display: block; max-width: 100%; }
    button, input { font: inherit; }
    button { cursor: pointer; }
    .container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
    .section { padding: 104px 0; }
    .section-soft { background: var(--cloud); }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--brand);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .08em;
    }
    .eyebrow::before {
      content: "";
      width: 24px;
      height: 2px;
      border-radius: 99px;
      background: var(--cyan);
    }
    .section-title {
      margin: 14px 0 0;
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.25;
      letter-spacing: -.035em;
      font-weight: 800;
    }
    .section-lead {
      max-width: 650px;
      margin: 18px 0 0;
      color: var(--muted);
      font-size: 16px;
    }
    .topbar {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255,255,255,.94);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 4px 18px rgba(36,64,108,.04);
      backdrop-filter: blur(14px);
    }
    .nav-shell {
      min-height: 76px;
      display: flex;
      align-items: center;
      gap: 22px;
    }
    .logo {
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 17px;
      font-weight: 800;
      white-space: nowrap;
      letter-spacing: -.03em;
    }
    .logo-mark {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      color: #fff;
      border-radius: 11px;
      background: var(--brand);
      box-shadow: 0 7px 16px rgba(37,99,235,.22);
      font-size: 15px;
    }
    .nav-search {
      position: relative;
      flex: 1 1 420px;
      max-width: 520px;
      margin-left: 10px;
    }
    .nav-search input {
      width: 100%;
      height: 44px;
      padding: 0 44px 0 17px;
      color: var(--ink);
      background: #f5f8fc;
      border: 1px solid var(--line);
      border-radius: 13px;
      outline: none;
      transition: .2s ease;
    }
    .nav-search input::placeholder { color: #8996aa; }
    .nav-search input:hover { border-color: #b9c9df; }
    .nav-search input:focus {
      background: #fff;
      border-color: var(--brand);
      box-shadow: 0 0 0 4px rgba(37,99,235,.11);
    }
    .search-button {
      position: absolute;
      top: 5px;
      right: 5px;
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      color: var(--brand);
      background: transparent;
      border: 0;
      border-radius: 9px;
      transition: .2s ease;
    }
    .search-button:hover, .search-button:focus-visible { background: #e8f0ff; outline: none; }
    .nav-links { display: flex; align-items: center; gap: 6px; margin-left: auto; }
    .nav-link {
      padding: 8px 12px;
      color: var(--muted);
      border-radius: 10px;
      font-size: 14px;
      transition: .2s ease;
    }
    .nav-link:hover, .nav-link:focus-visible { color: var(--brand); background: #eef4ff; outline: none; }
    .nav-link.active { color: var(--brand); background: #eaf1ff; font-weight: 700; }
    .nav-quiet {
      padding: 9px 14px;
      color: var(--brand-dark);
      border: 1px solid #cfe0ff;
      border-radius: 11px;
      font-size: 13px;
      font-weight: 700;
      transition: .2s ease;
    }
    .nav-quiet:hover, .nav-quiet:focus-visible { color: #fff; background: var(--brand); outline: none; }
    .menu-toggle { display: none; }
    .hero {
      position: relative;
      overflow: hidden;
      padding: 86px 0 92px;
      background: linear-gradient(180deg, #f7faff 0%, #fff 100%);
    }
    .hero::after {
      content: "";
      position: absolute;
      width: 420px;
      height: 420px;
      right: -170px;
      top: -180px;
      border: 1px solid #d9e8ff;
      border-radius: 50%;
      box-shadow: 0 0 0 34px rgba(219,234,254,.35), 0 0 0 70px rgba(219,234,254,.18);
      pointer-events: none;
    }
    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(390px, .95fr);
      gap: 72px;
      align-items: center;
    }
    .hero h1 {
      max-width: 650px;
      margin: 18px 0 22px;
      font-size: clamp(38px, 5.3vw, 66px);
      line-height: 1.14;
      letter-spacing: -.055em;
      font-weight: 850;
    }
    .hero-copy { max-width: 610px; color: var(--muted); font-size: 17px; }
    .actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 31px; }
    .btn {
      min-height: 46px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 0 19px;
      border: 1px solid transparent;
      border-radius: 12px;
      font-size: 14px;
      font-weight: 750;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .btn:hover { transform: translateY(-2px); }
    .btn:active { transform: translateY(0); }
    .btn:focus-visible { outline: 3px solid rgba(37,99,235,.25); outline-offset: 2px; }
    .btn-primary { color: #fff; background: var(--brand); box-shadow: 0 9px 20px rgba(37,99,235,.20); }
    .btn-primary:hover { background: var(--brand-dark); box-shadow: 0 12px 25px rgba(37,99,235,.27); }
    .btn-secondary { color: var(--brand-dark); background: #fff; border-color: #cfe0ff; }
    .btn-secondary:hover { background: #eef4ff; }
    .btn[disabled] { cursor: not-allowed; opacity: .5; transform: none; }
    .hero-notes { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 34px; }
    .hero-note { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 13px; }
    .note-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px #dff7fa; }
    .index-stage {
      min-height: 390px;
      padding: 23px;
      position: relative;
      border: 1px solid #dce8f8;
      border-radius: 26px;
      background: #fff;
      box-shadow: var(--shadow);
    }
    .stage-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 19px; border-bottom: 1px solid var(--line); }
    .stage-label { color: var(--ink); font-size: 14px; font-weight: 800; }
    .status { display: inline-flex; align-items: center; gap: 7px; padding: 5px 9px; color: #087b91; background: #e8fbfd; border-radius: 99px; font-size: 11px; font-weight: 700; }
    .status i { width: 6px; height: 6px; border-radius: 50%; background: #12b5cb; }
    .stage-search { margin: 20px 0; padding: 13px 14px; display: flex; align-items: center; gap: 10px; color: #7c8aa0; background: #f5f8fc; border-radius: 12px; font-size: 13px; }
    .stage-search strong { color: var(--brand); font-weight: 700; }
    .index-row { display: grid; grid-template-columns: 34px 1fr auto; gap: 12px; align-items: center; padding: 15px 0; border-bottom: 1px solid #edf1f6; }
    .index-row:last-child { border-bottom: 0; }
    .index-number { color: var(--brand); font-size: 12px; font-weight: 800; }
    .index-row b { display: block; font-size: 14px; }
    .index-row small { color: var(--muted); font-size: 11px; }
    .index-tag { padding: 4px 8px; color: #147b8d; background: #eaf9fb; border-radius: 7px; font-size: 10px; white-space: nowrap; }
    .split-heading { display: flex; justify-content: space-between; gap: 24px; align-items: end; margin-bottom: 43px; }
    .pain-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: start; }
    .pain-intro { position: sticky; top: 110px; }
    .pain-list { border-top: 1px solid var(--line); }
    .pain-item { display: grid; grid-template-columns: 62px 1fr; gap: 20px; padding: 25px 0; border-bottom: 1px solid var(--line); }
    .pain-num { color: var(--brand); font-size: 14px; font-weight: 800; }
    .pain-item h3 { margin: 0 0 6px; font-size: 19px; }
    .pain-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .solution-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 62px; align-items: center; }
    .path-card { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
    .path-step { display: grid; grid-template-columns: 44px 1fr; gap: 15px; padding: 17px 0; border-bottom: 1px solid #edf1f6; }
    .path-step:last-child { border-bottom: 0; }
    .path-icon { width: 35px; height: 35px; display: grid; place-items: center; color: var(--brand); background: #eaf1ff; border-radius: 10px; font-weight: 800; font-size: 13px; }
    .path-step h3 { margin: 0 0 3px; font-size: 16px; }
    .path-step p { margin: 0; color: var(--muted); font-size: 13px; }
    .solution-board { padding: 33px; min-height: 330px; color: #fff; border-radius: 25px; background: #18396c; box-shadow: var(--shadow); }
    .solution-board h3 { margin: 0; font-size: 25px; line-height: 1.35; }
    .board-line { height: 1px; margin: 27px 0; background: rgba(255,255,255,.18); }
    .board-pills { display: flex; flex-wrap: wrap; gap: 9px; }
    .board-pill { padding: 7px 10px; color: #dbeafe; border: 1px solid rgba(191,219,254,.25); border-radius: 8px; font-size: 12px; }
    .results-band { display: grid; grid-template-columns: 1.1fr 1.9fr; gap: 55px; align-items: center; }
    .metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: var(--line); box-shadow: var(--shadow-sm); }
    .metric { min-height: 145px; padding: 25px 22px; background: #fff; }
    .metric strong { display: block; color: var(--brand); font-size: 32px; line-height: 1.2; letter-spacing: -.04em; }
    .metric span { display: block; margin-top: 9px; color: var(--muted); font-size: 13px; }
    .quote-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 20px; align-items: stretch; }
    .quote-main, .quote-small { padding: 32px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
    .quote-main { display: flex; flex-direction: column; justify-content: space-between; min-height: 280px; }
    .quote-mark { color: var(--brand); font-size: 46px; line-height: 1; font-family: Georgia, serif; }
    blockquote { margin: 13px 0 25px; font-size: 22px; line-height: 1.55; font-weight: 700; letter-spacing: -.025em; }
    .quote-author { color: var(--muted); font-size: 13px; }
    .quote-stack { display: grid; gap: 20px; }
    .quote-small p { margin: 0 0 15px; color: var(--muted); font-size: 14px; }
    .quote-small b { font-size: 13px; }
    .faq-list { max-width: 850px; margin: 42px auto 0; border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-question { width: 100%; padding: 22px 4px; display: flex; justify-content: space-between; gap: 20px; text-align: left; color: var(--ink); background: transparent; border: 0; font-size: 16px; font-weight: 750; }
    .faq-question:hover { color: var(--brand); }
    .faq-question:focus-visible { outline: 3px solid rgba(37,99,235,.18); outline-offset: -3px; border-radius: 8px; }
    .faq-symbol { color: var(--brand); font-size: 22px; line-height: 1; transition: transform .2s ease; }
    .faq-answer { max-height: 0; overflow: hidden; color: var(--muted); font-size: 14px; transition: max-height .3s ease, padding .3s ease; }
    .faq-item.open .faq-answer { max-height: 160px; padding: 0 38px 22px 4px; }
    .faq-item.open .faq-symbol { transform: rotate(45deg); }
    .cta-panel { display: flex; justify-content: space-between; align-items: center; gap: 35px; padding: 43px 48px; border: 1px solid #cfe0ff; border-radius: 25px; background: #edf4ff; }
    .cta-panel h2 { margin: 0; font-size: clamp(25px, 3vw, 35px); line-height: 1.3; }
    .cta-panel p { max-width: 620px; margin: 11px 0 0; color: var(--muted); font-size: 14px; }
    .footer { padding: 48px 0 28px; background: #142746; color: #dce8f8; }
    .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 50px; padding-bottom: 38px; }
    .footer .logo { color: #fff; }
    .footer-desc { max-width: 350px; margin: 16px 0 0; color: #9fb0c9; font-size: 13px; }
    .footer h3 { margin: 3px 0 14px; color: #fff; font-size: 14px; }
    .footer-links { display: grid; gap: 8px; color: #9fb0c9; font-size: 13px; }
    .footer-links a:hover, .footer-links a:focus-visible { color: #fff; outline: none; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.13); color: #90a4bf; font-size: 12px; }
    .toast { position: fixed; right: 20px; bottom: 20px; z-index: 80; padding: 12px 16px; color: #fff; background: #18396c; border-radius: 11px; box-shadow: var(--shadow); opacity: 0; pointer-events: none; transform: translateY(12px); transition: .25s ease; }
    .toast.show { opacity: 1; transform: translateY(0); }
    @media (max-width: 1024px) {
      .hero-grid { gap: 40px; }
      .nav-links { gap: 0; }
      .nav-quiet { display: none; }
      .pain-grid, .solution-wrap { gap: 38px; }
    }
    @media (max-width: 768px) {
      .container { width: min(100% - 32px, 600px); }
      .section { padding: 72px 0; }
      .nav-shell { min-height: auto; padding: 14px 0; flex-wrap: wrap; gap: 12px; }
      .logo { flex: 1; }
      .menu-toggle { display: inline-grid; place-items: center; width: 40px; height: 38px; color: var(--brand); background: #eef4ff; border: 0; border-radius: 10px; }
      .nav-search { order: 3; flex-basis: 100%; max-width: none; margin-left: 0; }
      .nav-links { order: 4; display: none; width: 100%; padding: 8px; overflow-x: auto; justify-content: flex-start; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
      .nav-links.open { display: flex; }
      .hero { padding: 65px 0 72px; }
      .hero-grid, .pain-grid, .solution-wrap, .results-band, .quote-layout { grid-template-columns: 1fr; }
      .hero h1 { font-size: clamp(37px, 10vw, 54px); }
      .pain-intro { position: static; }
      .metrics { grid-template-columns: 1fr; }
      .metric { min-height: auto; }
      .cta-panel { align-items: flex-start; flex-direction: column; padding: 30px 25px; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
      .footer-grid > :first-child { grid-column: 1 / -1; }
      .footer-bottom { flex-direction: column; gap: 6px; }
    }
    @media (max-width: 520px) {
      .hero-notes { display: grid; gap: 10px; }
      .index-stage { padding: 18px; }
      .split-heading { display: block; margin-bottom: 30px; }
      .pain-item { grid-template-columns: 42px 1fr; gap: 10px; }
      .solution-board { padding: 25px; }
      .quote-main, .quote-small { padding: 25px; }
      blockquote { font-size: 19px; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-grid > :first-child { grid-column: auto; }
      .actions .btn { width: 100%; }
    }

/* roulang page: category1 */
:root {
      --brand:#2563eb;
      --brand-dark:#1e40af;
      --cyan:#0e9fba;
      --ink:#17243d;
      --muted:#65738b;
      --line:#e3eaf3;
      --cloud:#f5f8fc;
      --white:#fff;
      --radius:20px;
      --shadow:0 16px 45px rgba(36,64,108,.10);
      --shadow-sm:0 8px 28px rgba(36,64,108,.08);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;color:var(--ink);background:#fbfdff;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",
      "Hiragino Sans GB","Microsoft YaHei",sans-serif;
      line-height:1.75;-webkit-font-smoothing:antialiased
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,select{font:inherit}
    button{cursor:pointer}
    .container{width:min(1160px,calc(100% - 40px));margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);
      border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(36,64,108,.04);
      backdrop-filter:blur(14px)
    }
    .nav-shell{min-height:76px;display:flex;align-items:center;gap:22px}
    .logo{flex:0 0 auto;display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;white-space:nowrap;letter-spacing:-.03em}
    .logo-mark{width:34px;height:34px;display:grid;place-items:center;color:#fff;border-radius:11px;background:var(--brand);box-shadow:0 7px 16px rgba(37,99,235,.22);font-size:15px}
    .nav-search{position:relative;flex:1 1 420px;max-width:520px;margin-left:10px}
    .nav-search input{width:100%;height:44px;padding:0 44px 0 17px;color:var(--ink);background:#f5f8fc;border:1px solid var(--line);border-radius:13px;outline:none;transition:.2s ease}
    .nav-search input::placeholder{color:#8996aa}
    .nav-search input:hover{border-color:#b9c9df}
    .nav-search input:focus{background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(37,99,235,.11)}
    .search-button{position:absolute;top:5px;right:5px;width:34px;height:34px;display:grid;place-items:center;color:var(--brand);background:transparent;border:0;border-radius:9px;transition:.2s ease}
    .search-button:hover,.search-button:focus-visible{background:#e8f0ff;outline:none}
    .nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
    .nav-link{padding:8px 12px;color:var(--muted);border-radius:10px;font-size:14px;transition:.2s ease}
    .nav-link:hover,.nav-link:focus-visible{color:var(--brand);background:#eef4ff;outline:none}
    .nav-link.active{color:var(--brand);background:#eaf1ff;font-weight:700}
    .nav-quiet{padding:9px 14px;color:var(--brand-dark);border:1px solid #cfe0ff;border-radius:11px;font-size:13px;font-weight:700;transition:.2s ease}
    .nav-quiet:hover,.nav-quiet:focus-visible{color:#fff;background:var(--brand);outline:none}
    .menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:11px;background:#fff;color:var(--ink)}
    .page-head{padding:66px 0 48px;background:linear-gradient(180deg,#f7faff 0%,#fff 100%);border-bottom:1px solid #edf2f8}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:13px;font-weight:700;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;border-radius:99px;background:var(--cyan)}
    .page-title{max-width:780px;margin:15px 0 16px;font-size:clamp(34px,5vw,58px);line-height:1.18;letter-spacing:-.05em;font-weight:850}
    .page-lead{max-width:720px;color:var(--muted);font-size:16px}
    .crumbs{display:flex;gap:9px;align-items:center;color:#8290a5;font-size:13px;margin-bottom:25px}
    .crumbs a:hover{color:var(--brand)}
    .filter-wrap{padding:30px 0 18px}
    .filter-bar{display:grid;grid-template-columns:minmax(240px,1fr) auto auto auto;gap:12px;align-items:center;padding:15px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm)}
    .field{height:44px;padding:0 14px;border:1px solid var(--line);border-radius:11px;background:#f8fafd;color:var(--ink);outline:none;min-width:0}
    .field:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(37,99,235,.1);background:#fff}
    .filter-tag{height:38px;padding:0 14px;border:1px solid #d4e2f8;border-radius:10px;background:#f5f9ff;color:var(--brand-dark);font-size:13px;font-weight:700;transition:.2s}
    .filter-tag:hover,.filter-tag.active{background:#e8f1ff;border-color:#9ebff5}
    .filter-reset{height:38px;padding:0 13px;border:0;background:transparent;color:var(--muted);font-size:13px}
    .filter-reset:hover{color:var(--brand)}
    .browse-layout{display:grid;grid-template-columns:minmax(0,1fr) 292px;gap:26px;padding:18px 0 92px}
    .result-top{display:flex;justify-content:space-between;align-items:end;margin:20px 0 15px}
    .result-top h2{margin:0;font-size:24px;letter-spacing:-.03em}
    .result-count{color:var(--muted);font-size:13px}
    .content-list{display:grid;gap:14px}
    .content-item{display:grid;grid-template-columns:116px 1fr auto;gap:20px;align-items:center;padding:18px;background:#fff;border:1px solid var(--line);border-radius:17px;box-shadow:0 5px 20px rgba(36,64,108,.045);transition:.2s ease}
    .content-item:hover{transform:translateY(-2px);border-color:#bfd3f3;box-shadow:var(--shadow-sm)}
    .cover{height:92px;border-radius:13px;position:relative;overflow:hidden;background:#eaf2ff;border:1px solid #d5e5fb}
    .cover:before{content:"";position:absolute;width:82px;height:82px;border:14px solid rgba(37,99,235,.14);border-radius:50%;right:-20px;top:-22px}
    .cover:after{content:"";position:absolute;width:42px;height:42px;background:rgba(14,159,186,.18);border-radius:12px;left:18px;bottom:14px;transform:rotate(18deg)}
    .item-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:#8794a8;font-size:12px}
    .tag{display:inline-flex;padding:3px 9px;color:var(--brand-dark);background:#eaf2ff;border-radius:99px;font-size:12px;font-weight:700}
    .content-item h3{margin:7px 0 5px;font-size:17px;line-height:1.4}
    .content-item h3 a:hover{color:var(--brand)}
    .item-desc{margin:0;color:var(--muted);font-size:13px;line-height:1.7}
    .item-arrow{width:34px;height:34px;display:grid;place-items:center;color:var(--brand);border:1px solid #d9e6f7;border-radius:10px;transition:.2s}
    .content-item:hover .item-arrow{background:#eef4ff;border-color:#b9d0f4}
    .aside-card{padding:22px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm);margin-bottom:16px}
    .aside-card h3{margin:0 0 13px;font-size:17px}
    .aside-card p{margin:0;color:var(--muted);font-size:13px}
    .aside-list{display:grid;gap:10px;margin:17px 0 0;padding:0;list-style:none}
    .aside-list li{display:flex;justify-content:space-between;gap:10px;padding-bottom:10px;border-bottom:1px solid #edf1f6;color:var(--muted);font-size:13px}
    .aside-list li:last-child{border-bottom:0;padding-bottom:0}
    .aside-list b{color:var(--ink);font-weight:700}
    .index-visual{height:145px;margin-bottom:17px;position:relative;overflow:hidden;border-radius:14px;background:#edf5ff;border:1px solid #dce9f8}
    .index-visual span{position:absolute;border-radius:99px;background:#bcd6ff}
    .index-visual span:nth-child(1){width:170px;height:15px;left:20px;top:28px}
    .index-visual span:nth-child(2){width:110px;height:15px;left:20px;top:60px;background:#9edce5}
    .index-visual span:nth-child(3){width:145px;height:15px;left:20px;top:92px;background:#d0ddf8}
    .index-visual i{position:absolute;width:58px;height:58px;right:24px;top:43px;border:11px solid rgba(37,99,235,.18);border-radius:50%}
    .recommend{padding:78px 0;background:var(--cloud);border-top:1px solid #edf2f8}
    .recommend-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}
    .recommend-head h2{margin:13px 0 0;font-size:32px;line-height:1.25;letter-spacing:-.04em}
    .recommend-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr;gap:16px}
    .recommend-card{min-height:190px;padding:23px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm);transition:.2s}
    .recommend-card:first-child{background:#eef5ff;border-color:#cfe0fb}
    .recommend-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .recommend-card h3{margin:14px 0 8px;font-size:18px}
    .recommend-card p{margin:0;color:var(--muted);font-size:13px}
    .number{color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.08em}
    .faq-section{padding:82px 0}
    .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:72px}
    .faq-list{display:grid;gap:10px}
    .faq-item{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden}
    .faq-item summary{padding:17px 20px;cursor:pointer;font-weight:750;list-style:none;display:flex;justify-content:space-between;gap:20px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:var(--brand);font-size:20px;line-height:1}
    .faq-item[open] summary{color:var(--brand);background:#f7faff}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 20px 18px;color:var(--muted);font-size:14px}
    .cta-section{padding:0 0 88px}
    .cta-box{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:34px 38px;background:#eaf3ff;border:1px solid #cfe1fb;border-radius:22px}
    .cta-box h2{margin:0 0 8px;font-size:28px;line-height:1.3}
    .cta-box p{margin:0;color:var(--muted);font-size:14px}
    .btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 19px;border:1px solid transparent;border-radius:12px;font-size:14px;font-weight:750;transition:.2s}
    .btn:hover{transform:translateY(-2px)} .btn:active{transform:translateY(0)}
    .btn:focus-visible{outline:3px solid rgba(37,99,235,.25);outline-offset:2px}
    .btn-primary{color:#fff;background:var(--brand);box-shadow:0 9px 20px rgba(37,99,235,.2)}
    .btn-primary:hover{background:var(--brand-dark)}
    .btn-secondary{color:var(--brand-dark);background:#fff;border-color:#cfe0ff}
    .btn[disabled]{cursor:not-allowed;opacity:.5;transform:none}
    .footer{padding:54px 0 24px;background:#f4f7fb;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr;gap:60px}
    .footer-desc{max-width:330px;margin:16px 0 0;color:var(--muted);font-size:13px}
    .footer h3{margin:0 0 13px;font-size:14px}
    .footer-links{display:grid;gap:8px;color:var(--muted);font-size:13px}
    .footer-links a:hover{color:var(--brand)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:20px;border-top:1px solid var(--line);color:#8b98aa;font-size:12px}
    @media(max-width:1024px){.nav-quiet{display:none}.hero-grid{gap:35px}.browse-layout{grid-template-columns:1fr 250px}.recommend-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:768px){
      .container{width:min(100% - 28px,620px)}
      .nav-shell{min-height:auto;padding:14px 0;display:grid;grid-template-columns:1fr auto;gap:12px}
      .logo{font-size:15px}.menu-toggle{display:block}
      .nav-search{grid-column:1/-1;grid-row:2;width:100%;max-width:none;margin:0}
      .nav-links{display:none;grid-column:1/-1;grid-row:3;overflow-x:auto;margin:0;padding-bottom:2px}
      .nav-links.open{display:flex}
      .page-head{padding:45px 0 35px}.page-title{font-size:39px}
      .filter-bar{grid-template-columns:1fr 1fr}.filter-bar .field{grid-column:1/-1}
      .browse-layout{grid-template-columns:1fr;padding-bottom:70px}
      .aside-card{margin-bottom:0}.recommend{padding:62px 0}.recommend-grid{grid-template-columns:1fr}
      .faq-grid{grid-template-columns:1fr;gap:28px}.faq-section{padding:62px 0}
      .cta-box{align-items:flex-start;flex-direction:column;padding:28px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}
    }
    @media(max-width:520px){
      .content-item{grid-template-columns:78px 1fr;gap:13px;padding:14px}
      .cover{height:78px}.item-arrow{display:none}.content-item h3{font-size:15px}
      .item-desc{font-size:12px}.filter-bar{grid-template-columns:1fr}
      .filter-tag,.filter-reset{width:100%}.recommend-head{display:block}
      .recommend-head h2{font-size:27px}.footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}
    }