/* roulang page: index */
:root{
      --bg:#f5f8fb;
      --surface:#ffffff;
      --surface-blue:#edf5fb;
      --ink:#182638;
      --muted:#627286;
      --weak:#8996a6;
      --blue:#246aa5;
      --blue-dark:#174f81;
      --blue-soft:#d9eaf7;
      --line:#dce6ef;
      --accent:#e68165;
      --shadow:0 16px 40px rgba(42,74,103,.09),0 2px 8px rgba(42,74,103,.05);
      --shadow-hover:0 22px 52px rgba(33,76,112,.16),0 4px 12px rgba(33,76,112,.08);
      --radius:18px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
    body.menu-open{overflow:hidden}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    ::selection{background:var(--blue-soft);color:var(--ink)}
    .site-shell{overflow:hidden}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .topline{height:5px;background:linear-gradient(90deg,var(--blue) 0 28%,#8bb8d9 28% 72%,#dceaf4 72%)}
    .masthead{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:.2s ease}
    .masthead-inner{padding:18px 0 0}
    .brand-row{display:flex;align-items:center;justify-content:space-between;gap:28px;padding-bottom:15px}
    .brand{font-size:clamp(25px,3vw,39px);line-height:1.05;font-weight:800;letter-spacing:-.07em;color:#143c61;white-space:nowrap}
    .edition{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:13px;letter-spacing:.08em;white-space:nowrap}
    .edition::before{content:"";height:22px;width:1px;background:var(--line)}
    .edition-dot{width:8px;height:8px;background:var(--accent);border-radius:50%;box-shadow:0 0 0 4px #fff1ed}
    .channel-row{display:flex;align-items:center;justify-content:space-between;min-height:45px;border-top:1px solid #eef3f7}
    .channels{display:flex;align-items:center;gap:27px;height:45px}
    .nav-link{position:relative;color:#596b7c;font-size:14px;letter-spacing:.08em;transition:color .2s}
    .nav-link:hover,.nav-link.active{color:var(--blue)}
    .nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-13px;height:2px;background:var(--blue)}
    .nav-mini{font-size:12px;color:var(--weak);letter-spacing:.08em}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--blue);border-radius:10px;padding:8px 11px;line-height:1}
    .drawer{display:none}
    .hero{position:relative;padding:66px 0 52px;background:radial-gradient(circle at 50% 0,#e8f3fb 0,transparent 49%),var(--bg)}
    .hero-grid{display:grid;grid-template-columns:1fr 1.45fr 1fr;align-items:center;gap:25px}
    .hero-side{display:grid;gap:15px}
    .side-note{padding:19px;border-left:2px solid var(--blue);background:rgba(255,255,255,.72)}
    .side-note strong{display:block;color:var(--blue);font-size:13px;letter-spacing:.12em}
    .side-note p{margin:7px 0 0;color:var(--muted);font-size:14px;line-height:1.65}
    .hero-center{text-align:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:5px 10px;border:1px solid #b9d5e9;border-radius:999px;background:#f8fcff;color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.1em}
    .eyebrow i{display:block;width:6px;height:6px;border-radius:50%;background:var(--accent)}
    h1,h2,h3,p{margin-top:0}
    .hero h1{margin:17px auto 15px;max-width:730px;font-size:clamp(38px,5vw,58px);line-height:1.16;letter-spacing:-.06em;font-weight:850}
    .hero-intro{max-width:630px;margin:0 auto;color:var(--muted);font-size:16px;line-height:1.9}
    .stage{position:relative;margin:30px auto 0;max-width:620px;padding:13px;background:#fff;border:1px solid #cfe0ed;border-radius:20px;box-shadow:var(--shadow)}
    .stage-top{display:flex;justify-content:space-between;align-items:center;padding:7px 10px 13px;color:var(--weak);font-size:11px;letter-spacing:.1em}
    .stage-art{position:relative;min-height:195px;overflow:hidden;border-radius:12px;background:#e7f2fa;background-image:linear-gradient(rgba(92,145,184,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(92,145,184,.13) 1px,transparent 1px);background-size:24px 24px}
    .stage-art::before{content:"";position:absolute;width:290px;height:290px;border:34px solid rgba(36,106,165,.13);border-radius:50%;left:50%;top:50%;transform:translate(-50%,-50%)}
    .stage-art::after{content:"";position:absolute;height:2px;width:80%;background:var(--blue);left:10%;top:49%;box-shadow:0 -35px 0 rgba(36,106,165,.2),0 35px 0 rgba(36,106,165,.15)}
    .stage-copy{position:absolute;z-index:1;left:50%;top:50%;transform:translate(-50%,-50%);padding:8px 13px;background:#fff;border:1px solid #d6e5f0;color:#205b8d;font-size:14px;font-weight:800;white-space:nowrap}
    .stage-bars{position:absolute;z-index:2;bottom:16px;left:21px;right:21px;display:flex;justify-content:space-between;align-items:end}
    .stage-bars span{display:block;width:12%;background:rgba(36,106,165,.6);border-radius:3px 3px 0 0}
    .stage-bars span:nth-child(1){height:28px}.stage-bars span:nth-child(2){height:54px}.stage-bars span:nth-child(3){height:42px}.stage-bars span:nth-child(4){height:72px}.stage-bars span:nth-child(5){height:37px}.stage-bars span:nth-child(6){height:61px}
    .hero-actions{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:24px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 18px;font-size:14px;font-weight:700;transition:transform .2s,background .2s,border-color .2s,box-shadow .2s}
    .btn:focus-visible,.faq-trigger:focus-visible,.nav-link:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(36,106,165,.25);outline-offset:3px}
    .btn-primary{background:var(--blue);color:#fff;border:1px solid var(--blue);box-shadow:0 8px 16px rgba(36,106,165,.17)}
    .btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(36,106,165,.24)}
    .btn-quiet{padding-left:4px;padding-right:4px;color:var(--blue);border:1px solid transparent}
    .btn-quiet:hover{transform:translateX(3px);color:var(--blue-dark)}
    .btn:active{transform:translateY(1px) scale(.98)}
    .metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;max-width:900px;margin:48px auto 0;border:1px solid var(--line);background:var(--line);border-radius:14px;overflow:hidden;box-shadow:0 8px 20px rgba(40,73,98,.04)}
    .metric{padding:15px 18px;background:#fff;text-align:left}
    .metric b{display:block;color:var(--blue);font-size:26px;line-height:1;font-weight:800;letter-spacing:-.04em}
    .metric span{display:block;margin-top:7px;color:var(--muted);font-size:12px}
    section{padding:88px 0}
    .section-kicker{display:flex;align-items:center;gap:10px;margin-bottom:12px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.14em}
    .section-kicker::before{content:"";width:30px;height:2px;background:var(--blue)}
    .section-head{display:flex;justify-content:space-between;gap:35px;align-items:end;margin-bottom:34px}
    .section-head h2{margin:0;font-size:clamp(28px,3.4vw,40px);line-height:1.25;letter-spacing:-.05em}
    .section-head p{max-width:470px;margin:0;color:var(--muted);font-size:15px}
    .matrix{padding-top:74px;background:#fff}
    .matrix-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
    .matrix-card{position:relative;min-height:202px;padding:26px;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:0 7px 20px rgba(42,74,103,.045);transition:.22s ease}
    .matrix-card:hover{border-color:#b6d7ec;box-shadow:var(--shadow-hover);transform:translateY(-4px)}
    .matrix-card.primary{grid-column:span 7;background:var(--blue);border-color:var(--blue);color:#fff}
    .matrix-card.medium{grid-column:span 5;background:var(--surface-blue)}
    .matrix-card.small{grid-column:span 4;min-height:175px}
    .card-num{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;color:#7b93a8;font-size:12px;letter-spacing:.12em}
    .primary .card-num{color:#cce4f5}
    .card-arrow{font-size:20px;line-height:1;transition:transform .2s}
    .matrix-card:hover .card-arrow{transform:translateX(5px)}
    .matrix-card h3{margin-bottom:8px;font-size:21px;line-height:1.35;letter-spacing:-.03em}
    .matrix-card p{max-width:390px;margin-bottom:0;color:var(--muted);font-size:14px;line-height:1.75}
    .primary p{color:#e7f4fd}
    .micro-lines{position:absolute;right:23px;bottom:24px;display:flex;gap:5px;align-items:end;opacity:.72}
    .micro-lines i{display:block;width:7px;background:#76add2}
    .micro-lines i:nth-child(1){height:14px}.micro-lines i:nth-child(2){height:29px}.micro-lines i:nth-child(3){height:20px}.micro-lines i:nth-child(4){height:38px}.micro-lines i:nth-child(5){height:26px}
    .guide{background:var(--bg)}
    .guide-layout{display:grid;grid-template-columns:5fr 7fr;gap:24px}
    .guide-copy{padding:30px;border-radius:var(--radius);background:#eaf4fb;border:1px solid #d7e9f5}
    .guide-copy h2{font-size:33px;line-height:1.3;letter-spacing:-.05em}
    .guide-copy p{color:var(--muted);font-size:15px}
    .guide-list{display:grid;gap:12px}
    .guide-item{display:grid;grid-template-columns:46px 1fr auto;align-items:center;gap:18px;padding:19px 20px;border:1px solid var(--line);border-radius:14px;background:#fff;transition:.2s}
    .guide-item:hover{border-color:#b9d7e9;transform:translateX(3px);box-shadow:0 8px 18px rgba(42,74,103,.06)}
    .guide-index{font-size:18px;font-weight:800;color:var(--blue)}
    .guide-item h3{margin:0 0 2px;font-size:16px}
    .guide-item p{margin:0;color:var(--muted);font-size:13px}
    .compare{background:#fff}
    .compare-track{display:grid;grid-template-columns:1fr 48px 1fr;align-items:stretch;gap:20px}
    .compare-card{padding:29px;border:1px solid var(--line);border-radius:var(--radius);background:#fbfdff}
    .compare-card.featured{border-color:#bcd9ec;background:#f1f8fd}
    .compare-label{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.12em}
    .compare-card h3{margin:11px 0;color:var(--ink);font-size:23px}
    .compare-card p{color:var(--muted);font-size:14px}
    .scale{display:grid;gap:10px;margin-top:22px}
    .scale-row{display:grid;grid-template-columns:80px 1fr;gap:10px;align-items:center;color:var(--muted);font-size:12px}
    .bar{height:7px;border-radius:99px;background:#dceaf3;overflow:hidden}
    .bar i{display:block;height:100%;border-radius:99px;background:var(--blue)}
    .compare-line{position:relative}
    .compare-line::before{content:"";position:absolute;left:50%;top:15%;bottom:15%;width:1px;background:var(--line)}
    .compare-line span{position:absolute;left:50%;top:50%;display:grid;place-items:center;width:38px;height:38px;transform:translate(-50%,-50%);border-radius:50%;background:#fff;border:1px solid #b9d7e9;color:var(--blue);font-size:15px}
    .notice-band{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:24px;padding:17px 22px;border-left:3px solid var(--accent);background:#fff7f4;color:#6d5148;font-size:14px}
    .notice-band a{color:var(--blue);font-weight:800;white-space:nowrap}
    .updates{background:#f1f6fa}
    .updates-grid{display:grid;grid-template-columns:1.5fr .8fr;gap:26px}
    .update-list{border-top:1px solid var(--line)}
    .update-row{display:grid;grid-template-columns:105px 1fr auto;align-items:center;gap:19px;padding:20px 0;border-bottom:1px solid var(--line);transition:.2s}
    .update-row:hover{padding-left:8px}
    .update-date{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.06em}
    .update-row h3{margin:0 0 3px;font-size:17px}
    .update-row p{margin:0;color:var(--muted);font-size:13px}
    .feature-note{padding:27px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
    .feature-note h3{font-size:23px;line-height:1.35}
    .feature-note p{color:var(--muted);font-size:14px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 25px}
    .tag{padding:5px 9px;border-radius:999px;background:#eef5fa;color:#52718a;font-size:12px}
    .faq{background:#fff}
    .faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:70px}
    .faq-intro h2{font-size:clamp(30px,3.5vw,42px);line-height:1.22;letter-spacing:-.05em}
    .faq-intro p{color:var(--muted);font-size:15px}
    .faq-number{font-size:13px;color:var(--blue);font-weight:800;letter-spacing:.15em}
    .faq-list{display:grid;gap:11px}
    .faq-item{border:1px solid var(--line);border-radius:15px;overflow:hidden;background:#fff}
    .faq-trigger{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:19px 20px;border:0;background:#fff;color:var(--ink);text-align:left;font-weight:750;font-size:16px}
    .faq-trigger span:first-child{display:flex;gap:13px;align-items:center}
    .faq-no{color:#8aa5b9;font-size:12px;letter-spacing:.08em}
    .faq-plus{color:var(--blue);font-size:24px;font-weight:300;line-height:1;transition:transform .2s}
    .faq-trigger[aria-expanded="true"] .faq-plus{transform:rotate(45deg)}
    .faq-answer{display:none;padding:0 20px 19px 55px;background:#f7fbfe;color:var(--muted);font-size:14px;line-height:1.85}
    .faq-answer.open{display:block}
    .contact{background:var(--bg);padding-bottom:96px}
    .contact-panel{position:relative;overflow:hidden;display:grid;grid-template-columns:5fr 7fr;gap:52px;padding:46px;border:1px solid #cde1ef;border-radius:22px;background:#e8f4fb;box-shadow:var(--shadow)}
    .contact-panel::after{content:"01 02 03 04";position:absolute;right:-15px;bottom:-30px;color:rgba(36,106,165,.07);font-size:95px;font-weight:800;letter-spacing:.08em;pointer-events:none}
    .contact-copy{position:relative;z-index:1}
    .contact-copy h2{font-size:34px;line-height:1.3;letter-spacing:-.05em}
    .contact-copy p{color:var(--muted);font-size:15px}
    .privacy{display:flex;gap:8px;margin-top:25px;color:#698094;font-size:12px;line-height:1.65}
    .privacy::before{content:"✓";color:var(--blue);font-weight:800}
    .contact-form{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:6px}
    .field.full{grid-column:1/-1}
    label{font-size:12px;color:#48677f;font-weight:800;letter-spacing:.04em}
    input,select,textarea{width:100%;border:1px solid #c7dce9;border-radius:10px;background:#fff;color:var(--ink);padding:11px 12px;outline:0;transition:.2s}
    input::placeholder,textarea::placeholder{color:#9aaaba}
    input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(36,106,165,.13)}
    textarea{height:84px;resize:vertical}
    .form-message{display:none;grid-column:1/-1;padding:10px 12px;border-radius:9px;background:#e6f5eb;color:#397251;font-size:13px}
    .form-message.show{display:block}
    .site-footer{border-top:1px solid var(--line);background:#eef4f8}
    .footer-top{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:30px;padding:47px 0 32px}
    .footer-brand{font-size:24px;font-weight:850;letter-spacing:-.06em;color:#19486f}
    .footer-copy{max-width:385px;margin:12px 0 0;color:var(--muted);font-size:13px}
    .footer-col h3{margin:0 0 13px;font-size:13px;color:#345d7c;letter-spacing:.1em}
    .footer-col a{display:block;margin:7px 0;color:var(--muted);font-size:13px;transition:.2s}
    .footer-col a:hover{color:var(--blue);transform:translateX(2px)}
    .footer-bottom{display:flex;justify-content:space-between;gap:18px;padding:17px 0;border-top:1px solid #d8e4ec;color:#8292a0;font-size:12px}
    @media(max-width:1024px){
      .hero-grid{grid-template-columns:1fr 1.3fr}
      .hero-side:last-child{display:none}
      .matrix-card.primary{grid-column:span 7}.matrix-card.medium{grid-column:span 5}.matrix-card.small{grid-column:span 6}
      .faq-grid{gap:36px}
    }
    @media(max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .masthead-inner{padding-top:13px}.brand-row{padding-bottom:13px}
      .brand{font-size:25px;white-space:normal}.edition{display:none}.channel-row{min-height:43px}.channels,.nav-mini{display:none}.menu-toggle{display:block}
      .drawer{position:fixed;z-index:60;inset:0;display:none;background:rgba(18,37,54,.32)}.drawer.show{display:block}.drawer-panel{position:absolute;right:0;top:0;width:min(88vw,360px);height:100%;padding:28px;background:#fff;box-shadow:-16px 0 45px rgba(12,47,75,.17)}.drawer-brand{font-weight:850;font-size:23px;line-height:1.25;color:#19486f}.drawer-nav{display:grid;gap:5px;margin-top:30px}.drawer-nav a{padding:12px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:16px}.drawer-nav a.active{color:var(--blue);font-weight:800}
      .hero{padding:48px 0 42px}.hero-grid{grid-template-columns:1fr}.hero-side{grid-template-columns:1fr 1fr;order:2}.hero-center{order:1}.hero h1{font-size:39px}.stage-art{min-height:165px}.metric-strip{margin-top:34px;grid-template-columns:1fr 1fr}
      section{padding:60px 0}.section-head{display:block;margin-bottom:27px}.section-head h2{margin-bottom:12px}
      .matrix-grid{grid-template-columns:1fr}.matrix-card.primary,.matrix-card.medium,.matrix-card.small{grid-column:auto;min-height:185px}
      .guide-layout,.updates-grid,.faq-grid,.contact-panel{grid-template-columns:1fr;gap:24px}.guide-copy{padding:25px}.compare-track{grid-template-columns:1fr;gap:14px}.compare-line{height:26px}.compare-line::before{left:15%;right:15%;top:50%;bottom:auto;width:auto;height:1px}.compare-line span{top:50%}
      .contact-panel{padding:29px}.footer-top{grid-template-columns:1fr 1fr}.footer-top>div:first-child{grid-column:1/-1}
    }
    @media(max-width:520px){
      .hero-side{grid-template-columns:1fr}.hero h1{font-size:34px}.hero-actions{gap:10px;flex-wrap:wrap}.stage{margin-top:24px}.metric{padding:14px}.metric b{font-size:22px}
      .guide-item{grid-template-columns:36px 1fr;padding:16px}.guide-item .card-arrow{display:none}.notice-band{align-items:flex-start;flex-direction:column}.update-row{grid-template-columns:1fr auto;gap:8px}.update-date{grid-column:1/-1}.faq-answer{padding-left:20px}.contact-form{grid-template-columns:1fr}.field.full{grid-column:auto}.footer-top{grid-template-columns:1fr}.footer-top>div:first-child{grid-column:auto}.footer-bottom{display:block;line-height:2}
    }
    @media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category1 */
:root{
      --bg:#f5f8fb;
      --surface:#fff;
      --surface-blue:#edf5fb;
      --ink:#182638;
      --muted:#627286;
      --weak:#8996a6;
      --blue:#246aa5;
      --blue-dark:#174f81;
      --blue-soft:#d9eaf7;
      --line:#dce6ef;
      --accent:#e68165;
      --shadow:0 16px 40px rgba(42,74,103,.09),0 2px 8px rgba(42,74,103,.05);
      --shadow-hover:0 22px 52px rgba(33,76,112,.16),0 4px 12px rgba(33,76,112,.08);
      --radius:18px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
    body.menu-open{overflow:hidden}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .brand-row{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:22px 0 15px}
    .brand{font-size:clamp(25px,3vw,39px);line-height:1.05;font-weight:800;letter-spacing:-.07em;color:#143c61;white-space:nowrap}
    .brand-meta{display:flex;align-items:center;gap:16px;color:var(--weak);font-size:12px;letter-spacing:.08em}
    .brand-meta::before{content:"";width:1px;height:30px;background:var(--line)}
    .channel-row{display:flex;align-items:center;justify-content:space-between;min-height:45px;border-top:1px solid #eef3f7}
    .channels{display:flex;align-items:center;gap:28px}
    .nav-link{position:relative;color:#596b7c;font-size:14px;letter-spacing:.08em;transition:color .2s}
    .nav-link:hover,.nav-link.active{color:var(--blue)}
    .nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-13px;height:2px;background:var(--blue)}
    .nav-mini{font-size:12px;color:var(--weak);letter-spacing:.08em}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--blue);border-radius:10px;padding:8px 11px;line-height:1}
    .drawer{display:none}
    .page-hero{padding:76px 0 64px;background:radial-gradient(circle at 80% 10%,#e8f3fb 0,transparent 36%),var(--bg)}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--weak);font-size:13px;margin-bottom:26px}
    .breadcrumb a{color:var(--blue)}
    .hero-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:end}
    .eyebrow,.tag{display:inline-flex;align-items:center;gap:8px;padding:5px 10px;border:1px solid #b9d5e9;border-radius:999px;background:#f8fcff;color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.1em}
    .eyebrow i{display:block;width:6px;height:6px;border-radius:50%;background:var(--accent)}
    h1,h2,h3,p{margin-top:0}
    h1{margin:18px 0 16px;font-size:clamp(38px,5vw,58px);line-height:1.16;letter-spacing:-.06em;font-weight:850}
    .hero-lead{max-width:690px;color:var(--muted);font-size:17px;line-height:1.9}
    .hero-board{padding:24px;border:1px solid #cfe0ed;border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
    .board-top{display:flex;justify-content:space-between;color:var(--weak);font-size:11px;letter-spacing:.12em;border-bottom:1px solid var(--line);padding-bottom:15px}
    .board-grid{display:grid;grid-template-columns:1fr 1fr;gap:0}
    .board-item{padding:21px 12px 12px;border-bottom:1px solid var(--line)}
    .board-item:nth-child(odd){border-right:1px solid var(--line);padding-left:0}
    .board-item:nth-child(even){padding-right:0}
    .board-item:nth-child(3),.board-item:nth-child(4){border-bottom:0}
    .board-num{display:block;color:var(--blue);font-size:30px;font-weight:800;line-height:1.1}
    .board-label{display:block;color:var(--muted);font-size:13px;margin-top:6px}
    section{padding:88px 0}
    .section-kicker{display:flex;align-items:center;gap:10px;margin-bottom:12px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.14em}
    .section-kicker::before{content:"";width:30px;height:2px;background:var(--blue)}
    .section-head{display:flex;justify-content:space-between;gap:35px;align-items:end;margin-bottom:34px}
    .section-head h2{margin:0;font-size:clamp(28px,3.4vw,40px);line-height:1.25;letter-spacing:-.05em}
    .section-head p{max-width:470px;margin:0;color:var(--muted);font-size:15px}
    .index-layout{display:grid;grid-template-columns:220px 1fr;gap:28px}
    .filter-panel{align-self:start;padding:20px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 8px 22px rgba(42,74,103,.05)}
    .filter-panel h3{font-size:15px;margin-bottom:15px}
    .filter-list{display:grid;gap:8px}
    .filter-list a{padding:9px 10px;border-radius:9px;color:var(--muted);font-size:14px;transition:.2s}
    .filter-list a:hover,.filter-list a.active{background:var(--surface-blue);color:var(--blue);font-weight:700}
    .entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
    .entry-card{position:relative;min-height:230px;padding:25px;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:0 7px 20px rgba(42,74,103,.045);transition:.22s ease}
    .entry-card:hover{border-color:#b6d7ec;box-shadow:var(--shadow-hover);transform:translateY(-4px)}
    .entry-card.featured{grid-column:span 2;background:var(--surface-blue);min-height:250px}
    .entry-card::after{content:"";position:absolute;right:-28px;bottom:-45px;width:135px;height:135px;border:18px solid rgba(36,106,165,.08);border-radius:50%}
    .entry-meta{display:flex;justify-content:space-between;gap:12px;color:var(--weak);font-size:12px;margin-bottom:26px}
    .entry-card h3{font-size:22px;line-height:1.35;margin-bottom:10px;letter-spacing:-.03em}
    .entry-card p{max-width:550px;color:var(--muted);font-size:15px;margin-bottom:25px}
    .entry-foot{display:flex;justify-content:space-between;align-items:center;color:var(--blue);font-size:13px;font-weight:700}
    .arrow{transition:transform .2s}
    .entry-card:hover .arrow{transform:translateX(5px)}
    .note-band{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px 26px;border-left:4px solid var(--blue);background:#e6f2fa;border-radius:0 14px 14px 0;color:var(--muted)}
    .note-band strong{color:var(--ink);font-size:16px}
    .note-band p{margin:4px 0 0;font-size:14px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 18px;font-size:14px;font-weight:700;transition:transform .2s,background .2s,border-color .2s,box-shadow .2s}
    .btn:focus-visible,.nav-link:focus-visible,.filter-list a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(36,106,165,.25);outline-offset:3px}
    .btn-primary{background:var(--blue);color:#fff;border:1px solid var(--blue);box-shadow:0 8px 16px rgba(36,106,165,.17)}
    .btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(36,106,165,.24)}
    .btn-outline{background:#fff;color:var(--blue);border:1px solid #b9d5e9}
    .btn-outline:hover{border-color:var(--blue);background:var(--surface-blue);transform:translateY(-2px)}
    .btn:active{transform:translateY(1px) scale(.98)}
    .path-section{background:#fff}
    .path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .path-card{padding:24px;border-top:3px solid var(--blue-soft);border-radius:14px;background:var(--bg)}
    .path-card strong{font-size:30px;color:var(--blue);display:block;line-height:1;margin-bottom:18px}
    .path-card h3{font-size:18px;margin-bottom:8px}
    .path-card p{color:var(--muted);font-size:14px;margin-bottom:0}
    .faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:65px}
    .faq-title h2{font-size:clamp(28px,3.4vw,40px);line-height:1.25;letter-spacing:-.05em;margin-bottom:15px}
    .faq-title p{color:var(--muted);font-size:15px}
    .faq-list{display:grid;gap:10px}
    .faq-item{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden}
    .faq-trigger{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;border:0;background:#fff;color:var(--ink);padding:19px 21px;font-weight:700}
    .faq-trigger:hover{color:var(--blue)}
    .faq-icon{color:var(--blue);font-size:22px;font-weight:400;transition:transform .2s}
    .faq-answer{display:none;padding:0 21px 20px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-icon{transform:rotate(45deg)}
    .consult{padding:42px;background:var(--surface-blue);border:1px solid #cfe0ed;border-radius:var(--radius);box-shadow:var(--shadow)}
    .consult-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:start}
    .consult h2{font-size:30px;line-height:1.3;margin-bottom:12px}
    .consult p{color:var(--muted);font-size:15px}
    .privacy{font-size:12px!important;color:var(--weak)!important}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    .field{display:grid;gap:6px}
    .field.full{grid-column:span 2}
    .field label{font-size:13px;font-weight:700;color:var(--ink)}
    .field input,.field select,.field textarea{width:100%;border:1px solid #c8d8e5;border-radius:10px;background:#fff;color:var(--ink);padding:11px 13px;font-size:14px}
    .field textarea{min-height:102px;resize:vertical}
    .site-footer{padding:55px 0 22px;background:#eaf0f5;border-top:1px solid var(--line)}
    .footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px;padding-bottom:40px}
    .footer-brand{font-size:23px;font-weight:800;color:#143c61;letter-spacing:-.05em}
    .footer-copy{max-width:390px;color:var(--muted);font-size:14px;margin:13px 0 0}
    .footer-col{display:grid;align-content:start;gap:8px}
    .footer-col h3{font-size:13px;color:var(--ink);margin:0 0 8px;letter-spacing:.08em}
    .footer-col a{color:var(--muted);font-size:14px;transition:color .2s}
    .footer-col a:hover{color:var(--blue)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:18px;border-top:1px solid #d5e0e9;color:var(--weak);font-size:12px}
    @media(max-width:900px){
      .hero-layout,.faq-layout{grid-template-columns:1fr;gap:35px}
      .index-layout{grid-template-columns:1fr}
      .filter-panel{padding:15px}
      .filter-list{display:flex;overflow:auto;gap:8px}
      .filter-list a{white-space:nowrap}
      .path-grid{grid-template-columns:1fr}
      .consult-grid{grid-template-columns:1fr;gap:25px}
    }
    @media(max-width:700px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .brand-row{padding:17px 0 13px}
      .brand{font-size:25px;white-space:normal;max-width:270px}
      .brand-meta,.channels{display:none}
      .channel-row{justify-content:flex-end;min-height:0;border-top:0}
      .menu-toggle{display:inline-flex;margin-bottom:12px}
      .drawer{position:fixed;inset:0;background:rgba(24,38,56,.28);z-index:30}
      body.menu-open .drawer{display:block}
      .drawer-inner{position:absolute;right:0;top:0;width:min(86%,360px);height:100%;padding:28px 24px;background:#fff;box-shadow:-10px 0 30px rgba(24,38,56,.12)}
      .drawer-close{float:right;border:0;background:var(--surface-blue);color:var(--blue);border-radius:8px;padding:4px 10px}
      .drawer-brand{clear:both;padding-top:48px;color:#143c61;font-weight:800;font-size:21px}
      .drawer-links{display:grid;gap:18px;margin-top:28px}
      .drawer-links a{font-size:15px;color:var(--muted)}
      .page-hero{padding:52px 0 42px}
      section{padding:60px 0}
      .section-head{display:block}
      .section-head p{margin-top:14px}
      .entry-grid{grid-template-columns:1fr}
      .entry-card.featured{grid-column:span 1}
      .note-band{display:block;padding:19px}
      .note-band .btn{margin-top:15px}
      .form-grid{grid-template-columns:1fr}
      .field.full{grid-column:span 1}
      .footer-top{grid-template-columns:1fr;gap:25px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media(prefers-reduced-motion:reduce){
      *{scroll-behavior:auto!important;transition:none!important}
    }

/* roulang page: category2 */
:root{
 --bg:#f5f8fb;--surface:#fff;--surface-blue:#edf5fb;--ink:#182638;--muted:#627286;--weak:#8996a6;
 --blue:#246aa5;--blue-dark:#174f81;--blue-soft:#d9eaf7;--line:#dce6ef;--accent:#e68165;
 --shadow:0 16px 40px rgba(42,74,103,.09),0 2px 8px rgba(42,74,103,.05);
 --shadow-hover:0 22px 52px rgba(33,76,112,.16),0 4px 12px rgba(33,76,112,.08);
 --radius:18px;--container:1200px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}img{max-width:100%;display:block}
.container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
.site-header{position:sticky;z-index:50;top:0;background:rgba(255,255,255,.94);border-bottom:1px solid #e7eef4;backdrop-filter:blur(12px)}
.header-inner{padding:18px 0 0}.brand-row{display:flex;align-items:center;justify-content:space-between;gap:28px;padding-bottom:15px}
.brand{font-size:clamp(25px,3vw,39px);line-height:1.05;font-weight:800;letter-spacing:-.07em;color:#143c61;white-space:nowrap}
.brand-note{display:flex;align-items:center;gap:11px;color:var(--weak);font-size:12px;letter-spacing:.1em;text-align:right}
.brand-note:before{content:"";width:1px;height:30px;background:var(--line)}
.channel-row{display:flex;align-items:center;justify-content:space-between;min-height:45px;border-top:1px solid #eef3f7}
.channels{display:flex;align-items:center;gap:28px;height:45px}.nav-link{position:relative;color:#596b7c;font-size:14px;letter-spacing:.08em;transition:color .2s}
.nav-link:hover,.nav-link.active{color:var(--blue)}.nav-link.active:after{content:"";position:absolute;left:0;right:0;bottom:-13px;height:2px;background:var(--blue)}
.nav-mini{font-size:12px;color:var(--weak);letter-spacing:.08em}.menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--blue);border-radius:10px;padding:8px 11px;line-height:1}
.drawer{display:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 18px;font-size:14px;font-weight:700;border:1px solid transparent;transition:transform .2s,background .2s,border-color .2s,box-shadow .2s}
.btn-primary{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 8px 16px rgba(36,106,165,.17)}.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(36,106,165,.24)}
.btn-outline{background:#fff;color:var(--blue);border-color:#b9d5e9}.btn-outline:hover{background:var(--surface-blue);border-color:var(--blue);transform:translateY(-2px)}
.btn-quiet{padding-left:4px;padding-right:4px;color:var(--blue)}.btn-quiet:hover{transform:translateX(3px);color:var(--blue-dark)}
.btn:active{transform:translateY(1px) scale(.98)}.btn:focus-visible,.nav-link:focus-visible,.menu-toggle:focus-visible,.faq-trigger:focus-visible{outline:3px solid rgba(36,106,165,.28);outline-offset:3px}
.page-hero{padding:58px 0 44px;background:radial-gradient(circle at 78% 4%,#e3f1fb 0,transparent 34%),var(--bg)}
.breadcrumb{display:flex;flex-wrap:wrap;gap:9px;color:var(--weak);font-size:13px}.breadcrumb a:hover{color:var(--blue)}.breadcrumb span{color:#a7b3bf}
.hero-line{display:grid;grid-template-columns:132px minmax(0,1fr);gap:34px;align-items:end;margin-top:28px}
.chapter{font-size:15px;color:var(--blue);letter-spacing:.16em;font-weight:800;padding-bottom:13px;border-bottom:2px solid var(--blue)}
.chapter strong{display:block;font-size:64px;line-height:.92;letter-spacing:-.08em;color:#bed8ea;font-weight:850}
.hero-main{padding-bottom:4px;border-bottom:1px solid #cfdfea}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:5px 10px;border:1px solid #b9d5e9;border-radius:999px;background:#f8fcff;color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.1em}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent)}
h1{margin:16px 0 13px;font-size:clamp(38px,5vw,56px);line-height:1.16;letter-spacing:-.06em;font-weight:850}
.hero-copy{max-width:770px;margin:0;color:var(--muted);font-size:16px;line-height:1.9}.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}
.tag{padding:5px 10px;border-radius:999px;background:#fff;color:#587088;border:1px solid var(--line);font-size:12px}.tag.blue{background:var(--blue-soft);border-color:#c4dded;color:#1a5c91}
section{padding:84px 0}.content-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(280px,4fr);gap:54px;align-items:start}
.section-kicker{display:flex;align-items:center;gap:10px;margin-bottom:12px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.14em}.section-kicker:before{content:"";width:30px;height:2px;background:var(--blue)}
.section-title{margin:0;font-size:clamp(28px,3.4vw,40px);line-height:1.26;letter-spacing:-.05em}.section-lead{margin:15px 0 0;max-width:710px;color:var(--muted);font-size:16px}
.path-block{position:relative;margin-top:30px;padding:29px 30px 30px 42px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:0 7px 20px rgba(42,74,103,.045)}
.path-block:before{content:"";position:absolute;left:18px;top:33px;bottom:-36px;width:1px;background:#c9dfed}.path-block:last-of-type:before{bottom:33px}
.path-index{position:absolute;left:-13px;top:29px;display:grid;place-items:center;width:28px;height:28px;border:2px solid var(--blue);border-radius:50%;background:#fff;color:var(--blue);font-size:12px;font-weight:800}
.path-block h2{margin:0;font-size:23px;line-height:1.4;letter-spacing:-.03em}.path-block p{margin:12px 0 0;color:var(--muted);font-size:15px}
.info-strip{display:flex;align-items:flex-start;gap:15px;margin-top:21px;padding:15px 17px;border-left:3px solid var(--blue);border-radius:0 12px 12px 0;background:var(--surface-blue);color:#38576f;font-size:14px}.info-strip b{color:var(--blue);white-space:nowrap}
.split-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px}.mini-card{padding:19px;border:1px solid var(--line);border-radius:14px;background:#fbfdff;transition:.22s ease}.mini-card:hover{transform:translateY(-3px);border-color:#b6d7ec;box-shadow:var(--shadow)}
.mini-card span{display:block;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.1em}.mini-card h3{margin:8px 0 6px;font-size:17px}.mini-card p{margin:0;font-size:14px}
.abstract-panel{position:relative;overflow:hidden;min-height:190px;margin-top:22px;padding:25px;border:1px solid #cde0ed;border-radius:16px;background:#eaf4fa;background-image:linear-gradient(rgba(65,126,169,.11) 1px,transparent 1px),linear-gradient(90deg,rgba(65,126,169,.11) 1px,transparent 1px);background-size:25px 25px}
.abstract-panel:after{content:"";position:absolute;right:-30px;bottom:-65px;width:230px;height:230px;border:32px solid rgba(36,106,165,.13);border-radius:50%}.abstract-panel h3,.abstract-panel p{position:relative;z-index:1}.abstract-panel h3{margin:0;font-size:20px}.abstract-panel p{max-width:440px;color:#557087;font-size:14px}
.bars{position:absolute;z-index:1;right:30px;bottom:29px;display:flex;align-items:end;gap:7px;height:85px}.bars b{display:block;width:16px;background:var(--blue);border-radius:4px 4px 0 0;opacity:.7}.bars b:nth-child(1){height:34px}.bars b:nth-child(2){height:72px}.bars b:nth-child(3){height:48px}.bars b:nth-child(4){height:85px}
.sidebar{position:sticky;top:145px}.side-card{padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}.side-card+.side-card{margin-top:18px}
.side-card h2{margin:0 0 12px;font-size:17px}.toc a{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid #edf2f6;color:#587088;font-size:14px;transition:.2s}.toc a:last-child{border-bottom:0}.toc a:hover{color:var(--blue);padding-left:4px}.toc b{color:var(--blue);font-size:12px}
.side-note{margin:0;color:var(--muted);font-size:14px}.notice{display:flex;gap:12px;padding:15px;border-radius:12px;background:var(--surface-blue);color:#426177;font-size:13px}.notice strong{color:var(--blue)}
.related{padding-top:0}.related-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;margin-top:30px}.related-card{position:relative;overflow:hidden;padding:29px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 7px 20px rgba(42,74,103,.045);transition:.22s}.related-card:hover{border-color:#b6d7ec;box-shadow:var(--shadow-hover);transform:translateY(-4px)}.related-card.primary{background:var(--blue);border-color:var(--blue);color:#fff}.related-card .num{color:#82afcf;font-size:12px;font-weight:800;letter-spacing:.14em}.related-card.primary .num{color:#b9d9ed}.related-card h3{margin:18px 0 9px;font-size:23px;line-height:1.3}.related-card p{margin:0;color:var(--muted);font-size:15px}.related-card.primary p{color:#d9ebf7}.related-card .arrow{display:inline-block;margin-top:20px;color:var(--blue);font-weight:800}.related-card.primary .arrow{color:#fff}.related-card:hover .arrow{transform:translateX(5px)}
.faq-section{padding-top:22px}.faq-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:52px;align-items:start}.faq-intro{padding-top:12px}.faq-intro p{color:var(--muted);font-size:15px}.faq-list{display:grid;gap:12px}.faq-item{overflow:hidden;border:1px solid var(--line);border-radius:15px;background:#fff}.faq-trigger{display:flex;align-items:center;width:100%;gap:14px;padding:18px;background:#fff;border:0;color:var(--ink);font-size:15px;font-weight:700;text-align:left}.faq-no{color:var(--blue);font-size:12px;letter-spacing:.1em}.faq-plus{margin-left:auto;color:var(--blue);font-size:22px;font-weight:400;transition:.2s}.faq-trigger[aria-expanded="true"] .faq-plus{transform:rotate(45deg)}.faq-answer{display:none;padding:0 20px 18px 59px;background:#fbfdff;color:var(--muted);font-size:14px}.faq-answer.open{display:block}
.cta{padding:32px 0 88px}.cta-box{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:39px 42px;border:1px solid #c9dfed;border-radius:22px;background:var(--surface-blue);box-shadow:var(--shadow)}.cta-box h2{margin:0;font-size:clamp(25px,3vw,34px);line-height:1.3;letter-spacing:-.05em}.cta-box p{max-width:620px;margin:10px 0 0;color:var(--muted);font-size:15px}.cta-actions{display:flex;flex-wrap:wrap;gap:10px;flex:none}
.site-footer{border-top:1px solid #dce6ef;background:#edf3f7;color:#516577}.footer-top{display:grid;grid-template-columns:1.7fr .65fr .65fr;gap:50px;padding:52px 0 37px}.footer-brand{display:inline-block;color:#174f81;font-size:24px;font-weight:850;letter-spacing:-.06em}.footer-copy{max-width:470px;margin:12px 0 0;font-size:14px}.footer-col h3{margin:0 0 12px;color:#27445d;font-size:14px}.footer-col a{display:block;margin:7px 0;font-size:14px;transition:.2s}.footer-col a:hover{color:var(--blue);transform:translateX(3px)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid #d6e2eb;color:#718294;font-size:12px}
@media(max-width:1024px){.content-layout{gap:30px}.channels{gap:18px}.brand-note{display:none}.footer-top{gap:28px}.hero-line{gap:24px}}
@media(max-width:768px){.container{width:min(calc(100% - 32px),var(--container))}.header-inner{padding-top:13px}.brand-row{padding-bottom:13px}.brand{font-size:25px;white-space:normal}.channel-row{min-height:0;border:0}.channels,.nav-mini{display:none}.menu-toggle{display:block;margin-left:auto;margin-bottom:12px}.drawer{position:fixed;inset:0;z-index:80;background:rgba(18,38,56,.35)}.drawer.open{display:block}.drawer-panel{position:absolute;right:0;top:0;width:min(88vw,355px);height:100%;padding:27px;background:#fff;box-shadow:-16px 0 40px rgba(26,53,75,.16)}.drawer-brand{color:#174f81;font-size:24px;font-weight:850;line-height:1.25;letter-spacing:-.06em}.drawer-nav{display:grid;gap:3px;margin-top:28px}.drawer-nav a{padding:13px 0;border-bottom:1px solid var(--line);color:#526a7d;font-size:15px}.drawer-nav a.active{color:var(--blue);font-weight:800}.page-hero{padding:37px 0 32px}.hero-line{grid-template-columns:1fr;gap:16px;margin-top:22px}.chapter{display:flex;align-items:center;gap:12px;padding:0 0 10px}.chapter strong{font-size:38px}.content-layout,.faq-grid{grid-template-columns:1fr;gap:30px}.sidebar{position:static;order:-1}.side-card:last-child{display:none}section{padding:58px 0}.path-block{padding:25px 20px 25px 34px}.split-cards,.related-grid{grid-template-columns:1fr}.cta{padding-bottom:58px}.cta-box{display:block;padding:29px}.cta-actions{margin-top:22px}.footer-top{grid-template-columns:1fr 1fr;padding:40px 0 28px}.footer-top>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block}.footer-bottom span+span{margin-top:5px}}
@media(max-width:520px){h1{font-size:35px}.hero-copy{font-size:15px}.hero-tags{gap:7px}.abstract-panel{min-height:220px}.bars{right:20px}.footer-top{grid-template-columns:1fr;gap:23px}.footer-top>div:first-child{grid-column:auto}.btn{width:100%}.cta-actions{display:grid}.faq-answer{padding-left:20px}.path-block:before{left:14px}.path-index{left:-11px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}