/* roulang page: index */
:root{
      --ink:#18212f;--muted:#687386;--paper:#f5f7fb;--white:#fff;
      --line:#e5e9f0;--violet:#6d5dfc;--violet-dark:#5143d8;
      --cyan:#26c6b8;--orange:#ff9e5b;--radius:22px;
      --shadow:0 18px 50px rgba(35,44,73,.11);
    }
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;letter-spacing:0}
    a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(229,233,240,.86)}
    .nav{height:76px;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:800;white-space:nowrap}
    .brand-mark{width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,var(--violet),var(--cyan));display:grid;place-items:center;color:white;font-weight:900}
    .nav-links{display:flex;align-items:center;gap:6px;margin-right:auto}
    .nav-links a{padding:9px 14px;border-radius:12px;color:var(--muted);font-size:14px;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:#f0efff;color:var(--violet-dark)}
    .nav-actions{display:flex;align-items:center;gap:13px}
    .status{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:13px}.status i{width:8px;height:8px;background:var(--cyan);border-radius:50%;box-shadow:0 0 0 4px #e2faf7}
    .nav-button,.primary-button,.secondary-button{border:0;border-radius:13px;padding:11px 18px;font-weight:700;cursor:pointer;transition:.2s}
    .nav-button,.primary-button{background:var(--violet);color:#fff;box-shadow:0 8px 18px rgba(109,93,252,.22)}
    .nav-button:hover,.primary-button:hover{background:var(--violet-dark);transform:translateY(-2px)}
    .secondary-button{background:#fff;border:1px solid var(--line);color:var(--ink)}.secondary-button:hover{border-color:var(--violet);color:var(--violet)}
    .hero{min-height:630px;position:relative;color:#fff;background:linear-gradient(90deg,rgba(12,17,31,.94) 0%,rgba(18,24,43,.82) 44%,rgba(18,24,43,.34) 100%),url("https://images.unsplash.com/photo-1489599849927-2ee91cede3ba?auto=format&fit=crop&w=1900&q=88") center/cover}
    .hero-inner{min-height:630px;display:flex;align-items:center;padding:75px 0}
    .hero-copy{max-width:680px}.eyebrow,.badge{display:inline-flex;align-items:center;gap:7px;border-radius:999px;padding:6px 11px;font-size:12px;font-weight:800;letter-spacing:.4px}
    .eyebrow{background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.2);color:#d8d5ff}
    h1{font-size:clamp(38px,5vw,68px);line-height:1.12;margin:22px 0 20px;letter-spacing:0;font-weight:900}
    .hero p{max-width:650px;color:#d5d9e4;font-size:17px;line-height:1.9;margin:0 0 30px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}.hero .secondary-button{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.28)}
    .hero-meta{display:flex;gap:28px;margin-top:37px;flex-wrap:wrap}.metric strong{display:block;font-size:25px;color:#fff}.metric span{font-size:12px;color:#b9c0d0}
    .section{padding:82px 0}.section.alt{background:#fff}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-head h2{font-size:31px;line-height:1.25;margin:0;font-weight:850}.section-head p{max-width:610px;color:var(--muted);margin:8px 0 0}
    .section-link{color:var(--violet-dark);font-weight:700;font-size:14px;white-space:nowrap}
    .search-bar{background:#fff;padding:20px;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);display:flex;gap:12px;align-items:center;margin-top:-38px;position:relative;z-index:2}
    .search-bar input{flex:1;border:0;outline:0;color:var(--ink);min-width:0;font-size:15px}.search-icon{color:var(--violet);font-size:20px}.search-bar button{white-space:nowrap}
    .matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.matrix-item{padding:22px;background:#fff;border:1px solid var(--line);border-radius:18px;transition:.2s}.matrix-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d4d0ff}.matrix-item b{display:block;font-size:17px;margin-bottom:5px}.matrix-item span{font-size:13px;color:var(--muted)}
    .badge{background:#eeedff;color:var(--violet-dark)}.badge.orange{background:#fff0e5;color:#b95d1d}.badge.green{background:#e4faf7;color:#087d72}
    .feature-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}.feature-card{position:relative;overflow:hidden;border-radius:var(--radius);min-height:310px;color:#fff;background:#242b43}.feature-card img{width:100%;height:100%;object-fit:cover;opacity:.65}.feature-overlay{position:absolute;inset:0;padding:28px;display:flex;flex-direction:column;justify-content:end;background:linear-gradient(transparent 20%,rgba(9,13,28,.92))}
    .feature-overlay h3{font-size:26px;margin:8px 0}.feature-overlay p{margin:0;color:#d9dce6;font-size:14px}.side-stack{display:grid;gap:20px}.side-card{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}.side-card h3{margin:8px 0 7px;font-size:19px}.side-card p{margin:0;color:var(--muted);font-size:14px}
    .content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.content-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.2s}.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.content-card img{height:165px;width:100%;object-fit:cover}.content-body{padding:19px}.content-body h3{margin:8px 0;font-size:18px;line-height:1.45}.content-body p{font-size:13px;color:var(--muted);margin:0}.content-foot{display:flex;justify-content:space-between;align-items:center;margin-top:16px;font-size:12px;color:var(--muted)}
    .rank-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}.rank-item{display:flex;align-items:center;gap:15px;padding:17px;background:#fff;border:1px solid var(--line);border-radius:16px}.rank-no{font-size:25px;font-weight:900;color:#d2d6df;width:30px}.rank-item:nth-child(1) .rank-no{color:var(--orange)}.rank-item:nth-child(2) .rank-no{color:var(--violet)}.rank-item h3{margin:0;font-size:16px}.rank-item p{margin:2px 0 0;color:var(--muted);font-size:12px}
    .resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.resource{padding:24px;border-radius:18px;border:1px solid var(--line);background:#fbfcff}.resource b{font-size:18px}.resource p{color:var(--muted);font-size:14px;margin:8px 0 0}
    .quote-band{background:#1b2238;color:#fff}.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.quote{padding:28px;border:1px solid rgba(255,255,255,.13);border-radius:18px;background:rgba(255,255,255,.05)}.quote p{font-size:17px;margin:0 0 18px;color:#e7e9f1}.quote small{color:#aeb6ca}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.step{padding:22px 0;border-top:3px solid var(--violet)}.step strong{display:block;font-size:27px;color:var(--violet)}.step h3{font-size:17px;margin:8px 0}.step p{font-size:13px;color:var(--muted);margin:0}
    .notice{display:flex;justify-content:space-between;align-items:center;gap:22px;padding:24px 28px;border-radius:18px;background:linear-gradient(110deg,#eeedff,#e9faf7);border:1px solid #dcdcff}.notice h2{margin:0;font-size:23px}.notice p{margin:5px 0 0;color:var(--muted);font-size:14px}
    footer{background:#111729;color:#cad0df;padding:60px 0 26px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}.footer-brand{color:#fff;font-size:18px;font-weight:800}.footer-grid h3{font-size:14px;color:#fff;margin:0 0 15px}.footer-grid a{display:block;color:#aab3c7;font-size:13px;margin:8px 0}.footer-grid a:hover{color:#fff}.footer-desc{font-size:13px;line-height:1.8;max-width:280px;color:#939db3}.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:45px;padding-top:20px;font-size:12px;color:#818ba2}
    :focus-visible{outline:3px solid rgba(109,93,252,.35);outline-offset:3px}
    @media(max-width:1024px){.nav{gap:18px}.matrix{grid-template-columns:repeat(2,1fr)}.feature-grid{grid-template-columns:1fr}.timeline{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(100% - 28px,620px)}.nav{height:68px}.nav-links{display:none}.status{display:none}.brand{font-size:15px}.nav-button{padding:9px 12px;font-size:13px}.hero,.hero-inner{min-height:590px}.hero-inner{padding:55px 0}.hero p{font-size:15px}.section{padding:62px 0}.section-head{display:block}.section-head h2{font-size:27px}.section-link{display:inline-block;margin-top:13px}.search-bar{margin-top:-28px}.content-grid,.resource-grid{grid-template-columns:1fr 1fr}.rank-list,.quote-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:520px){h1{font-size:38px}.hero-actions{display:grid}.hero-actions a{width:100%;text-align:center}.hero-meta{gap:18px}.search-bar{align-items:stretch;flex-direction:column}.search-bar button{width:100%}.matrix,.content-grid,.resource-grid,.timeline{grid-template-columns:1fr}.feature-card{min-height:285px}.footer-grid{grid-template-columns:1fr}.copyright{margin-top:30px}}

/* roulang page: category1 */
:root{
      --ink:#18212f;--muted:#687386;--paper:#f5f7fb;--white:#fff;
      --line:#e5e9f0;--violet:#6d5dfc;--violet-dark:#5143d8;
      --cyan:#26c6b8;--orange:#ff9e5b;--radius:22px;
      --shadow:0 18px 50px rgba(35,44,73,.11);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:90px}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;letter-spacing:0}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(38,198,184,.55);outline-offset:3px}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(229,233,240,.86)}
    .nav{height:76px;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:800;white-space:nowrap}
    .brand-mark{width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,var(--violet),var(--cyan));display:grid;place-items:center;color:#fff;font-weight:900}
    .nav-links{display:flex;align-items:center;gap:6px;margin-right:auto}
    .nav-links a{padding:9px 14px;border-radius:12px;color:var(--muted);font-size:14px;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:#f0efff;color:var(--violet-dark)}
    .nav-actions{display:flex;align-items:center;gap:13px}
    .status{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;white-space:nowrap}
    .status i{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(38,198,184,.13)}
    .nav-button,.primary-button,.secondary-button{display:inline-flex;justify-content:center;align-items:center;gap:8px;border:0;border-radius:13px;padding:11px 18px;font-weight:700;cursor:pointer;transition:background .2s,color .2s,transform .2s,box-shadow .2s}
    .nav-button,.primary-button{background:var(--violet);color:#fff;box-shadow:0 8px 18px rgba(109,93,252,.22)}
    .nav-button:hover,.primary-button:hover{background:var(--violet-dark);transform:translateY(-2px)}
    .secondary-button{background:#fff;border:1px solid var(--line);color:var(--ink)}
    .secondary-button:hover{border-color:var(--violet);color:var(--violet)}
    .hero{position:relative;overflow:hidden;color:#fff;background:#171d31}
    .hero::before{content:"";position:absolute;inset:0;background:linear-gradient(112deg,rgba(12,17,31,.97) 0%,rgba(20,27,48,.95) 62%,rgba(50,48,106,.88) 100%)}
    .hero::after{content:"";position:absolute;width:440px;height:440px;right:-90px;top:-170px;border:1px solid rgba(255,255,255,.08);border-radius:50%;box-shadow:0 0 0 48px rgba(255,255,255,.025),0 0 0 96px rgba(255,255,255,.02)}
    .hero-inner{position:relative;z-index:1;min-height:540px;display:grid;grid-template-columns:1.1fr .9fr;gap:55px;align-items:center;padding:64px 0}
    .hero-copy{max-width:660px}
    .eyebrow,.badge{display:inline-flex;align-items:center;gap:7px;border-radius:999px;padding:6px 11px;font-size:12px;font-weight:800}
    .eyebrow{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);color:#d8d5ff}
    .hero h1{font-size:clamp(38px,5vw,58px);line-height:1.14;margin:20px 0 18px;font-weight:850}
    .hero p{max-width:620px;color:#d5d9e4;font-size:16px;line-height:1.9;margin:0 0 27px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .hero .secondary-button{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.25)}
    .hero .secondary-button:hover{background:rgba(255,255,255,.16);color:#fff}
    .hero-meta{display:flex;gap:24px;margin-top:28px;flex-wrap:wrap;color:#bac2d4;font-size:13px}
    .hero-meta strong{color:#fff;font-size:16px;margin-right:5px}
    .rank-panel{position:relative;z-index:1;padding:23px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:20px;backdrop-filter:blur(8px)}
    .rank-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
    .rank-panel-head h2{font-size:16px;margin:0;color:#fff}
    .live-label{display:inline-flex;align-items:center;gap:7px;font-size:11px;color:#b6f5e9;background:rgba(38,198,184,.12);padding:5px 9px;border-radius:999px}
    .live-label i{width:6px;height:6px;border-radius:50%;background:var(--cyan)}
    .rank-row{display:grid;grid-template-columns:32px 1fr auto;align-items:center;gap:12px;padding:13px 0;border-top:1px solid rgba(255,255,255,.1)}
    .rank-no{font-size:17px;font-weight:900;color:#c4c9d8}
    .rank-row:first-of-type .rank-no{color:var(--orange)}
    .rank-title{font-size:14px;font-weight:700;color:#f5f6fb}
    .rank-sub{font-size:11px;color:#aab3c7;margin-top:2px}
    .rank-score{font-size:12px;color:#c6cbe0;background:rgba(255,255,255,.09);padding:5px 8px;border-radius:8px}
    .section{padding:72px 0}
    .section.alt{background:#fff}
    .section.tint{background:#eef1f8}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}
    .section-head h2{font-size:29px;line-height:1.28;margin:0;font-weight:850}
    .section-head p{max-width:610px;color:var(--muted);margin:8px 0 0}
    .section-link{color:var(--violet-dark);font-weight:700;font-size:14px;white-space:nowrap}
    .section-link:hover{text-decoration:underline;text-underline-offset:4px}
    .intro-band{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center}
    .intro-copy h2{font-size:30px;line-height:1.3;margin:0 0 15px}
    .intro-copy p{color:var(--muted);margin:0 0 13px}
    .intro-note{display:flex;gap:14px;align-items:flex-start;padding:19px;border-left:3px solid var(--cyan);background:#f1fbfa;border-radius:0 14px 14px 0;color:#42515f;font-size:14px}
    .intro-note strong{display:block;color:var(--ink);margin-bottom:3px}
    .topic-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .topic-item{display:flex;align-items:center;gap:13px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:15px;transition:.2s}
    .topic-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#d4d0ff}
    .topic-icon{width:40px;height:40px;flex:none;display:grid;place-items:center;border-radius:13px;background:#eeedff;color:var(--violet-dark);font-weight:900}
    .topic-item:nth-child(2) .topic-icon{background:#e4faf7;color:#087d72}
    .topic-item:nth-child(3) .topic-icon{background:#fff0e5;color:#b95d1d}
    .topic-item:nth-child(4) .topic-icon{background:#edf2ff;color:#4568b8}
    .topic-item b{display:block;font-size:14px}
    .topic-item span{display:block;color:var(--muted);font-size:12px;margin-top:2px}
    .badge{background:#eeedff;color:var(--violet-dark)}
    .badge.orange{background:#fff0e5;color:#b95d1d}
    .badge.green{background:#e4faf7;color:#087d72}
    .benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .benefit{padding:23px;background:#fff;border:1px solid var(--line);border-radius:18px;min-height:196px}
    .benefit .topic-icon{margin-bottom:16px}
    .benefit h3{font-size:17px;margin:0 0 7px}
    .benefit p{font-size:13px;color:var(--muted);margin:0}
    .feature-split{display:grid;grid-template-columns:.86fr 1.14fr;gap:30px;align-items:stretch}
    .feature-copy{padding:12px 0}
    .feature-copy h2{font-size:29px;line-height:1.35;margin:14px 0}
    .feature-copy p{color:var(--muted);margin:0 0 19px}
    .feature-visual{min-height:310px;position:relative;overflow:hidden;border-radius:var(--radius);background:#232a42}
    .feature-visual img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;opacity:.7}
    .visual-overlay{position:absolute;inset:0;padding:25px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(180deg,rgba(9,13,28,.08),rgba(9,13,28,.82))}
    .visual-overlay h3{margin:0;color:white;font-size:23px;max-width:420px}
    .visual-overlay p{margin:7px 0 0;color:#d9dce6;font-size:13px}
    .visual-caption{display:flex;justify-content:space-between;align-items:end;gap:12px;color:#fff;font-size:12px}
    .content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .content-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.2s}
    .content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .content-card img{height:175px;width:100%;object-fit:cover}
    .content-body{padding:19px}
    .content-body h3{margin:9px 0 7px;font-size:17px;line-height:1.45}
    .content-body p{font-size:13px;color:var(--muted);margin:0}
    .content-meta{display:flex;gap:8px;align-items:center;color:#8a94a7;font-size:11px;margin-top:15px}
    .content-meta span+span::before{content:"·";margin-right:8px}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);margin-top:34px}
    .timeline-item{position:relative;padding:24px 19px 0 0}
    .timeline-item::before{content:"";position:absolute;top:-6px;left:0;width:11px;height:11px;border-radius:50%;background:var(--violet);box-shadow:0 0 0 5px #eeedff}
    .timeline-item h3{font-size:15px;margin:0 0 6px;padding-top:4px}
    .timeline-item p{font-size:13px;color:var(--muted);margin:0}
    .proof-band{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0;background:#171d31;color:#fff;border-radius:20px;overflow:hidden}
    .proof-cell{padding:25px 28px;border-right:1px solid rgba(255,255,255,.12)}
    .proof-cell:last-child{border:0}
    .proof-cell strong{display:block;font-size:25px;line-height:1.2}
    .proof-cell span{display:block;color:#b6bfd1;font-size:12px;margin-top:7px}
    .comparison{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .compare-panel{padding:25px;border-radius:18px;border:1px solid var(--line);background:#fff}
    .compare-panel.featured{background:#f1f0ff;border-color:#d9d5ff}
    .compare-panel h3{margin:0 0 14px;font-size:18px}
    .compare-panel ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
    .compare-panel li{display:flex;gap:10px;align-items:flex-start;color:#596477;font-size:14px}
    .check{width:19px;height:19px;flex:none;border-radius:50%;display:grid;place-items:center;background:#e4faf7;color:#087d72;font-size:12px;font-weight:900}
    .cross{width:19px;height:19px;flex:none;border-radius:50%;display:grid;place-items:center;background:#f0f1f4;color:#8a94a7;font-size:12px;font-weight:900}
    .quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .quote-card{padding:22px;background:#fff;border:1px solid var(--line);border-radius:17px}
    .quote-card blockquote{margin:0;color:#465165;font-size:15px;line-height:1.85}
    .quote-source{display:flex;align-items:center;gap:10px;margin-top:17px;color:var(--muted);font-size:12px}
    .quote-mark{width:34px;height:34px;border-radius:50%;background:#f0efff;color:var(--violet-dark);display:grid;place-items:center;font-weight:900}
    .faq-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .faq-item{padding:20px;background:#fff;border:1px solid var(--line);border-radius:15px}
    .faq-item h3{font-size:15px;margin:0 0 7px}
    .faq-item p{font-size:13px;color:var(--muted);margin:0}
    .cta-band{position:relative;overflow:hidden;background:#171d31;color:#fff;border-radius:22px;padding:35px 38px;display:flex;justify-content:space-between;align-items:center;gap:24px}
    .cta-band::after{content:"";position:absolute;width:240px;height:240px;border-radius:50%;border:1px solid rgba(255,255,255,.1);right:20%;top:-130px;box-shadow:0 0 0 30px rgba(255,255,255,.025)}
    .cta-copy{position:relative;z-index:1}
    .cta-copy h2{margin:0 0 6px;font-size:24px}
    .cta-copy p{margin:0;color:#b9c2d3;font-size:14px}
    .cta-band .primary-button{position:relative;z-index:1;white-space:nowrap;background:var(--cyan);color:#102d32}
    .cta-band .primary-button:hover{background:#58dccf}
    footer{background:#111729;color:#cad0df;padding:57px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer-brand{color:#fff;font-size:18px;font-weight:800}
    .footer-grid h3{font-size:14px;color:#fff;margin:0 0 15px}
    .footer-grid a{display:block;color:#aab3c7;font-size:13px;margin:8px 0;transition:color .2s}
    .footer-grid a:hover{color:#fff}
    .footer-desc{font-size:13px;line-height:1.8;max-width:280px;color:#939db3}
    .copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:42px;padding-top:19px;font-size:12px;color:#818ba2}
    .sticky-action{position:fixed;z-index:15;bottom:16px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:16px;padding:10px 12px 10px 18px;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border:1px solid var(--line);border-radius:16px;box-shadow:0 14px 40px rgba(22,29,48,.2)}
    .sticky-action span{font-size:13px;font-weight:700;white-space:nowrap}
    .sticky-action .primary-button{padding:9px 14px;font-size:13px}
    @media(max-width:1024px){
      .container{width:min(100% - 36px,900px)}
      .nav{gap:18px}
      .hero-inner{gap:30px}
      .content-grid{grid-template-columns:repeat(2,1fr)}
      .benefit-grid{grid-template-columns:repeat(3,1fr)}
      .footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:26px}
      .footer-grid>div:last-child{display:none}
    }
    @media(max-width:768px){
      .container{width:min(100% - 32px,620px)}
      .nav{height:68px}
      .nav-links{display:none}
      .brand{font-size:15px}
      .brand-mark{width:33px;height:33px}
      .nav-button{padding:9px 12px;font-size:13px}
      .status{display:none}
      .hero-inner{min-height:auto;grid-template-columns:1fr;padding:53px 0 45px;gap:28px}
      .hero h1{font-size:42px}
      .hero p{font-size:15px}
      .rank-panel{max-width:520px}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-head h2,.intro-copy h2{font-size:26px}
      .section-head .section-link{display:inline-block;margin-top:12px}
      .intro-band,.feature-split{grid-template-columns:1fr;gap:25px}
      .topic-list{grid-template-columns:1fr 1fr}
      .benefit-grid{grid-template-columns:1fr 1fr}
      .timeline{grid-template-columns:1fr 1fr;row-gap:12px}
      .proof-cell{padding:20px}
      .proof-cell strong{font-size:22px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid>div:last-child{display:block}
      .sticky-action{width:calc(100% - 28px);justify-content:space-between;gap:10px}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 28px)}
      .nav{gap:9px}
      .brand{font-size:13px;gap:7px}
      .brand-mark{width:30px;height:30px;border-radius:10px;font-size:14px}
      .nav-actions{margin-left:auto}
      .nav-button{font-size:12px;padding:8px 10px}
      .hero-inner{padding:43px 0 37px}
      .hero h1{font-size:35px}
      .hero-meta{gap:14px}
      .hero-meta strong{font-size:14px}
      .rank-panel{padding:17px}
      .section{padding:49px 0}
      .section-head h2,.intro-copy h2{font-size:24px}
      .topic-list,.benefit-grid,.content-grid,.timeline,.comparison,.quote-grid,.faq-list{grid-template-columns:1fr}
      .feature-visual{min-height:260px}
      .proof-band{grid-template-columns:1fr}
      .proof-cell{border-right:0;border-bottom:1px solid rgba(255,255,255,.12)}
      .proof-cell:last-child{border-bottom:0}
      .footer-grid{grid-template-columns:1fr 1fr;gap:23px 16px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .cta-band{padding:25px;align-items:flex-start;flex-direction:column}
      .sticky-action span{font-size:12px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*::before,*::after{scroll-behavior:auto!important;transition:none!important}
    }