/* roulang page: index */
:root{
      --bg:#f5f8fc;
      --surface:#ffffff;
      --surface-soft:#edf4fb;
      --surface-blue:#e6f0fa;
      --ink:#102a45;
      --text:#30455d;
      --muted:#6f8297;
      --primary:#2f6098;
      --primary-dark:#224d80;
      --secondary:#6867a8;
      --teal:#278479;
      --orange:#b9782d;
      --line:#d9e5f1;
      --line-strong:#c4d6e8;
      --shadow:0 16px 42px rgba(27,64,105,.09);
      --shadow-sm:0 8px 22px rgba(27,64,105,.07);
      --radius:20px;
      --radius-sm:12px;
      --container:1200px;
      --header-h:80px;
      --btn-h:48px;
      --section:104px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:var(--bg);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      padding-bottom:82px;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select{font:inherit}
    button{border:0}
    ::selection{background:#cfe2f7;color:var(--ink)}
    .site-container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .section{padding:var(--section) 0;position:relative}
    .section-soft{background:var(--surface-soft)}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      color:var(--primary);font-weight:700;font-size:.82rem;letter-spacing:.08em;
      text-transform:uppercase;
    }
    .eyebrow::before{content:"";width:20px;height:1px;background:currentColor}
    .section-title{margin:12px 0 14px;color:var(--ink);font-size:clamp(1.85rem,3vw,2.8rem);line-height:1.25;font-weight:800;letter-spacing:-.035em}
    .section-intro{max-width:690px;margin:0;color:var(--muted);font-size:1rem}
    .btn-brand,.btn-quiet{
      min-height:var(--btn-h);padding:10px 20px;border-radius:10px;
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      font-weight:700;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease;
    }
    .btn-brand{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(47,96,152,.2)}
    .btn-brand:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 22px rgba(47,96,152,.28)}
    .btn-brand:active{transform:translateY(0)}
    .btn-quiet{border:1px solid var(--line-strong);background:#fff;color:var(--primary)}
    .btn-quiet:hover{background:var(--surface-blue);border-color:#aac4df;color:var(--primary-dark);transform:translateY(-2px)}
    a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
      outline:3px solid rgba(47,96,152,.34);outline-offset:3px
    }
    .site-header{height:var(--header-h);display:flex;align-items:center;background:rgba(255,255,255,.92);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;backdrop-filter:blur(12px)}
    .header-inner{width:min(calc(100% - 48px),var(--container));margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:26px}
    .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink)}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--primary);position:relative;box-shadow:inset 0 0 0 5px #dbeaf8}
    .brand-mark::before,.brand-mark::after{content:"";position:absolute;border-radius:50%;background:#fff}
    .brand-mark::before{width:6px;height:6px;left:10px;top:9px}
    .brand-mark::after{width:6px;height:6px;right:9px;bottom:9px}
    .brand-text{font-weight:800;letter-spacing:-.04em;line-height:1.08;font-size:1.04rem}
    .brand-text small{display:block;color:var(--muted);font-size:.63rem;letter-spacing:.08em;font-weight:700;margin-top:3px}
    .desktop-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
    .desktop-nav a{color:#587087;font-size:.93rem;font-weight:700;position:relative;padding:27px 0}
    .desktop-nav a::after{content:"";position:absolute;left:0;bottom:18px;width:0;height:2px;background:var(--primary);transition:width .2s ease}
    .desktop-nav a:hover{color:var(--primary)}
    .desktop-nav a:hover::after,.desktop-nav a.active::after{width:100%}
    .desktop-nav a.active{color:var(--ink)}
    .header-actions{display:flex;align-items:center;gap:12px}
    .age-link{color:var(--orange);font-size:.8rem;font-weight:700;white-space:nowrap}
    .header-actions .btn-brand{min-height:40px;padding:8px 15px;font-size:.86rem}
    .navbar-toggler{border:1px solid var(--line-strong);border-radius:9px;padding:8px 10px;color:var(--primary);background:#fff}
    .navbar-toggler-icon{width:1.35em;height:1.35em;background-image:none;position:relative}
    .navbar-toggler-icon::before{content:"☰";font-size:1.3rem;line-height:1.1}
    .mobile-menu{background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
    .mobile-menu .nav-link{display:block;padding:14px 0;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink)}
    .mobile-menu .nav-link.active{color:var(--primary)}
    .hero{padding:58px 0 76px;overflow:hidden;position:relative;background:linear-gradient(180deg,#fff 0%,#f5f8fc 100%)}
    .hero::before{content:"";position:absolute;width:440px;height:440px;border:1px solid #dbe9f6;border-radius:50%;right:-100px;top:-180px;box-shadow:0 0 0 38px rgba(224,237,249,.42),0 0 0 76px rgba(232,241,250,.35)}
    .hero-grid{display:grid;grid-template-columns:1fr minmax(500px,1.32fr) 1fr;align-items:center;gap:24px;position:relative}
    .hero-side{display:flex;flex-direction:column;gap:16px}
    .side-note{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:var(--radius-sm);padding:17px;box-shadow:var(--shadow-sm)}
    .side-note .num{display:block;color:var(--secondary);font-weight:800;font-size:.78rem;letter-spacing:.1em}
    .side-note strong{display:block;color:var(--ink);font-size:1rem;margin:3px 0}
    .side-note span{font-size:.82rem;color:var(--muted);line-height:1.55;display:block}
    .hero-copy{text-align:center;position:relative}
    .hero-copy h1{margin:13px auto 18px;color:var(--ink);font-weight:850;letter-spacing:-.055em;font-size:clamp(2.45rem,4.6vw,4.4rem);line-height:1.12;max-width:680px}
    .hero-copy p{max-width:655px;margin:0 auto;color:var(--text);font-size:1.02rem;line-height:1.85}
    .hero-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:27px}
    .hero-points{display:flex;justify-content:center;gap:22px;flex-wrap:wrap;margin-top:24px}
    .hero-point{font-size:.82rem;color:var(--muted);display:flex;align-items:center;gap:7px}
    .hero-point b{width:7px;height:7px;border-radius:50%;background:var(--teal);display:inline-block}
    .stage{width:min(100%,720px);margin:39px auto 0;background:#fff;border:1px solid var(--line-strong);box-shadow:var(--shadow);border-radius:24px;padding:13px;position:relative}
    .stage::before{content:"字幕索引预览";position:absolute;top:-13px;left:28px;background:#fff;padding:0 10px;color:var(--primary);font-size:.76rem;font-weight:800;letter-spacing:.08em}
    .stage-toolbar{display:flex;align-items:center;justify-content:space-between;padding:5px 5px 13px;border-bottom:1px solid var(--line);font-size:.76rem;color:var(--muted)}
    .toolbar-dots{display:flex;gap:5px}.toolbar-dots i{width:7px;height:7px;border-radius:50%;background:#b9cce0}.toolbar-dots i:nth-child(2){background:#8caece}.toolbar-dots i:nth-child(3){background:#5d87b2}
    .stage-content{display:grid;grid-template-columns:156px 1fr;gap:13px;padding-top:13px}
    .stage-filter{background:var(--surface-soft);border-radius:14px;padding:15px 12px}
    .stage-filter strong{font-size:.78rem;color:var(--ink)}
    .filter-line{height:8px;background:#d6e5f3;border-radius:8px;margin-top:11px}.filter-line.short{width:66%}.filter-line.active{background:#72a4d4;width:84%}
    .preview-list{display:grid;gap:10px}
    .preview-row{display:grid;grid-template-columns:88px 1fr auto;align-items:center;gap:12px;padding:10px;border:1px solid #e3edf6;border-radius:12px}
    .cover-mini{height:57px;border-radius:8px;background:linear-gradient(135deg,#98b7d5,#e3edf7);position:relative;overflow:hidden}
    .cover-mini::after{content:"中文字幕";position:absolute;bottom:5px;left:5px;background:rgba(16,42,69,.78);color:#fff;padding:1px 5px;border-radius:3px;font-size:.55rem}
    .preview-row strong{display:block;color:var(--ink);font-size:.78rem;line-height:1.35}.preview-row span{font-size:.65rem;color:var(--muted)}
    .status{font-size:.65rem;font-weight:800;color:var(--teal);background:#e4f4f1;padding:4px 7px;border-radius:99px;white-space:nowrap}
    .path-line{display:flex;align-items:center;justify-content:center;gap:4px;color:var(--muted);font-size:.68rem;padding-top:8px}
    .path-line b{width:5px;height:5px;border-radius:50%;background:var(--primary)}
    .feature-section{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:43px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .feature-item{padding:31px 29px;border-right:1px solid var(--line);min-height:228px;position:relative}
    .feature-item:last-child{border-right:0}
    .feature-item:hover{background:#f9fbfe}
    .feature-num{font-size:.76rem;font-weight:800;letter-spacing:.1em;color:var(--secondary)}
    .feature-icon{width:42px;height:42px;margin:17px 0 15px;border-radius:12px;background:var(--surface-blue);color:var(--primary);display:grid;place-items:center;font-size:1.15rem;font-weight:900}
    .feature-item h3{font-size:1.15rem;color:var(--ink);margin:0 0 8px;font-weight:800}
    .feature-item p{font-size:.88rem;color:var(--muted);margin:0 0 14px;line-height:1.7}
    .text-link{font-size:.85rem;color:var(--primary);font-weight:800}
    .text-link:hover{color:var(--primary-dark);text-decoration:underline}
    .demo-layout{display:grid;grid-template-columns:360px 1fr;gap:50px;align-items:center;margin-top:42px}
    .filter-panel{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);border-radius:var(--radius);padding:25px}
    .panel-title{display:flex;justify-content:space-between;align-items:center;color:var(--ink);font-weight:800;margin-bottom:20px}
    .panel-title span{font-size:.7rem;color:var(--teal);background:#e4f4f1;padding:4px 9px;border-radius:99px}
    .form-label{font-size:.78rem;color:#577087;font-weight:800;margin-bottom:6px}
    .form-control,.form-select{border:1px solid var(--line-strong);border-radius:9px;min-height:44px;color:var(--text);background:#fff;font-size:.87rem}
    .form-control:focus,.form-select:focus{border-color:#6e9bca;box-shadow:0 0 0 .22rem rgba(47,96,152,.14)}
    .form-control::placeholder{color:#9aabba}
    .filter-check{display:flex;flex-wrap:wrap;gap:8px}
    .filter-check span{border:1px solid var(--line);padding:5px 9px;border-radius:99px;font-size:.73rem;color:#60778e;background:#fff}
    .filter-check span.selected{color:var(--primary);border-color:#a6c3df;background:#edf5fc;font-weight:800}
    .content-flow{display:grid;gap:13px}
    .flow-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:3px}
    .flow-head h3{margin:0;color:var(--ink);font-size:1.24rem;font-weight:800}
    .flow-head span{font-size:.78rem;color:var(--muted)}
    .content-row{display:grid;grid-template-columns:150px 1fr auto;gap:19px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:15px;padding:11px;transition:.2s ease}
    .content-row:hover{transform:translateX(4px);border-color:#b5cce2;box-shadow:var(--shadow-sm)}
    .content-cover{height:94px;border-radius:10px;background:linear-gradient(135deg,#c7d9eb,#759abb);position:relative;overflow:hidden}
    .content-cover.alt{background:linear-gradient(135deg,#d4d5ec,#777cab)}.content-cover.third{background:linear-gradient(135deg,#c6e2de,#679c98)}
    .content-cover::before{content:"成人向内容信息";font-size:.65rem;color:#fff;position:absolute;bottom:7px;left:8px;z-index:1}.content-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(17,42,69,.55),transparent 65%)}
    .content-info h4{color:var(--ink);font-size:1rem;margin:0 0 6px;font-weight:800}.content-info p{font-size:.78rem;margin:0;color:var(--muted)}
    .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:9px}.tag{font-size:.67rem;color:#5a7090;background:var(--surface-soft);border:1px solid #dce9f5;border-radius:99px;padding:3px 8px}.tag.violet{color:#5f5e99;background:#f0effa;border-color:#dfdef3}
    .row-date{color:var(--muted);font-size:.73rem;white-space:nowrap;text-align:right}.row-date b{display:block;color:var(--teal);font-size:.7rem;margin-bottom:3px}
    .recognition-band{background:var(--ink);color:#fff;overflow:hidden}
    .recognition-band .section-title{color:#fff}.recognition-band .section-intro{color:#c2d0df}
    .signal-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1.1fr;gap:0;border-top:1px solid rgba(255,255,255,.18);margin-top:40px}
    .signal{padding:25px 24px;border-right:1px solid rgba(255,255,255,.18)}.signal:last-child{border-right:0}
    .signal b{display:block;font-size:1.1rem;color:#d6e8fa;margin-bottom:7px}.signal span{font-size:.81rem;color:#b9c9d8;line-height:1.65}
    .compare-wrap{margin-top:39px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
    .compare-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr}
    .compare-cell{padding:25px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);font-size:.88rem}.compare-cell:nth-child(3n){border-right:0}.compare-cell.head{background:var(--surface-soft);font-weight:800;color:var(--ink)}.compare-cell.good{color:var(--teal);font-weight:800;background:#fbfefd}
    .news-area{display:grid;grid-template-columns:1.35fr .65fr;gap:40px;margin-top:42px}
    .news-list{border-top:1px solid var(--line)}
    .news-item{display:grid;grid-template-columns:110px 1fr auto;align-items:center;gap:18px;padding:19px 0;border-bottom:1px solid var(--line);transition:.2s}
    .news-item:hover{padding-left:8px;background:rgba(255,255,255,.56)}
    .news-date{font-size:.76rem;color:var(--primary);font-weight:800}.news-item h3{margin:0 0 3px;color:var(--ink);font-size:1rem;font-weight:800}.news-item p{margin:0;color:var(--muted);font-size:.8rem}.news-arrow{color:var(--primary);font-size:1.25rem}
    .news-aside{background:var(--surface-blue);border-radius:var(--radius);padding:29px}
    .news-aside h3{font-size:1.2rem;color:var(--ink);font-weight:800;margin:0 0 13px}.news-aside p{font-size:.86rem;color:#5f7590;margin-bottom:20px}
    .aside-list{list-style:none;margin:0;padding:0}.aside-list li{font-size:.82rem;color:var(--text);padding:10px 0;border-bottom:1px solid rgba(115,148,182,.22)}.aside-list li::before{content:"·";font-weight:900;color:var(--primary);padding-right:8px}
    .faq-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:62px;align-items:start}
    .accordion{margin-top:0}.accordion-item{border:1px solid var(--line)!important;border-radius:12px!important;margin-bottom:10px;overflow:hidden;background:#fff}.accordion-button{font-weight:800;color:var(--ink);background:#fff;padding:18px 20px;box-shadow:none!important;font-size:.94rem}.accordion-button:not(.collapsed){color:var(--primary);background:var(--surface-soft)}.accordion-button::after{background-size:1rem}.accordion-body{font-size:.87rem;color:var(--muted);padding:0 20px 19px;line-height:1.8}
    .consult-box{padding:43px;background:linear-gradient(125deg,#e8f2fb,#f7f9fd);border:1px solid var(--line);border-radius:24px;position:relative;overflow:hidden}
    .consult-box::after{content:"";position:absolute;width:230px;height:230px;border-radius:50%;border:1px solid #c8dced;right:-73px;bottom:-105px;box-shadow:0 0 0 28px rgba(207,224,239,.55)}
    .consult-content{max-width:730px;position:relative;z-index:1}.consult-box h2{color:var(--ink);font-size:clamp(1.7rem,3vw,2.4rem);font-weight:800;letter-spacing:-.04em;margin:10px 0}.consult-box p{color:var(--muted);margin:0 0 22px}
    .footer{background:#fff;border-top:1px solid var(--line);padding:60px 0 30px}
    .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .9fr 1fr;gap:35px}
    .footer-brand p{font-size:.83rem;color:var(--muted);max-width:320px;margin-top:15px}.footer h3{font-size:.84rem;color:var(--ink);font-weight:800;margin:0 0 14px}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin:8px 0}.footer-links a{font-size:.82rem;color:var(--muted)}.footer-links a:hover{color:var(--primary);text-decoration:underline}
    .footer-bottom{border-top:1px solid var(--line);margin-top:43px;padding-top:19px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:.75rem;color:#8394a5}
    .footer-bottom a{color:var(--primary)}
    .fixed-cta{position:fixed;z-index:90;left:50%;bottom:15px;transform:translateX(-50%);width:min(calc(100% - 36px),820px);background:rgba(255,255,255,.96);border:1px solid var(--line-strong);box-shadow:0 14px 35px rgba(15,43,74,.18);border-radius:14px;padding:10px 11px 10px 18px;display:flex;align-items:center;gap:16px;backdrop-filter:blur(12px)}
    .fixed-cta .route{flex:1;min-width:0}.fixed-cta .route b{display:block;color:var(--ink);font-size:.84rem;line-height:1.25}.fixed-cta .route span{display:block;color:var(--muted);font-size:.72rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.fixed-cta .btn-brand{min-height:40px;padding:7px 15px;font-size:.82rem}.close-bar{color:#71879b;background:transparent;font-size:1.15rem;padding:6px;line-height:1;cursor:pointer}
    @media(max-width:1199px){
      .hero-grid{grid-template-columns:1fr 1.55fr 1fr}.side-note{padding:14px}.stage-content{grid-template-columns:125px 1fr}
      .desktop-nav{gap:17px}.header-actions .age-link{display:none}.demo-layout{gap:28px}
    }
    @media(max-width:991px){
      :root{--section:78px}.desktop-nav,.header-actions{display:none}.hero-grid{grid-template-columns:1fr;max-width:760px;margin:auto}.hero-side{display:grid;grid-template-columns:1fr 1fr;order:2}.hero-copy{order:1}.stage{order:3;margin-top:18px}.hero-copy h1{font-size:clamp(2.35rem,7vw,3.6rem)}.feature-grid{grid-template-columns:1fr}.feature-item{border-right:0;border-bottom:1px solid var(--line);min-height:auto}.feature-item:last-child{border-bottom:0}.demo-layout,.faq-grid{grid-template-columns:1fr}.filter-panel{max-width:620px}.news-area{grid-template-columns:1fr}.signal-grid{grid-template-columns:1fr 1fr}.signal:nth-child(2){border-right:0}.signal:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.18)}.footer-grid{grid-template-columns:1.35fr 1fr 1fr}
    }
    @media(max-width:767px){
      body{padding-bottom:88px}.site-container,.header-inner{width:min(calc(100% - 32px),var(--container))}.site-header{height:70px}.brand-text{font-size:.92rem}.brand-mark{width:30px;height:30px}.desktop-nav{display:none}.hero{padding:42px 0 54px}.hero::before{width:280px;height:280px;right:-130px;top:-120px}.hero-copy{text-align:left}.hero-copy h1{font-size:2.3rem;margin-left:0}.hero-copy p{margin-left:0;font-size:.95rem}.hero-actions{justify-content:flex-start}.hero-points{justify-content:flex-start;gap:13px}.hero-side{grid-template-columns:1fr;gap:9px}.stage{padding:9px;border-radius:17px}.stage-content{grid-template-columns:1fr}.stage-filter{display:none}.preview-row{grid-template-columns:64px 1fr auto}.cover-mini{height:46px}.preview-row:nth-child(3){display:none}.section-title{font-size:1.85rem}.demo-layout{margin-top:30px}.content-row{grid-template-columns:104px 1fr;gap:12px}.content-cover{height:80px}.row-date{grid-column:2;text-align:left}.content-info h4{font-size:.91rem}.signal-grid{grid-template-columns:1fr}.signal{border-right:0;border-bottom:1px solid rgba(255,255,255,.18)}.signal:last-child{border-bottom:0}.compare-wrap{overflow-x:auto}.compare-grid{min-width:600px}.news-item{grid-template-columns:80px 1fr auto;gap:10px}.news-date{font-size:.7rem}.news-item h3{font-size:.9rem}.news-item p{font-size:.75rem}.consult-box{padding:30px 24px}.footer{padding-top:45px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.fixed-cta{bottom:9px;padding:8px 8px 8px 13px;width:calc(100% - 20px)}.fixed-cta .route span{display:none}.fixed-cta .btn-brand{padding:7px 11px;font-size:.76rem}.close-bar{padding:4px}
    }
    @media(max-width:520px){
      :root{--section:62px}.hero-copy h1{font-size:2.04rem}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions .btn-brand,.hero-actions .btn-quiet{width:100%}.stage-toolbar{font-size:.64rem}.preview-row{grid-template-columns:55px 1fr}.preview-row .status{display:none}.content-row{grid-template-columns:84px 1fr;padding:8px}.content-cover{height:72px}.tags{margin-top:5px}.tag{font-size:.61rem}.row-date{font-size:.67rem}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:6px}
    }

/* roulang page: category1 */
:root{
      --bg:#f5f8fc;
      --surface:#fff;
      --surface-soft:#edf4fb;
      --surface-blue:#e6f0fa;
      --ink:#102a45;
      --text:#30455d;
      --muted:#6f8297;
      --primary:#2f6098;
      --primary-dark:#224d80;
      --secondary:#6867a8;
      --teal:#278479;
      --orange:#b9782d;
      --line:#d9e5f1;
      --line-strong:#c4d6e8;
      --shadow:0 16px 42px rgba(27,64,105,.09);
      --shadow-sm:0 8px 22px rgba(27,64,105,.07);
      --radius:20px;
      --radius-sm:12px;
      --container:1200px;
      --header-h:80px;
      --btn-h:48px;
      --section:78px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:var(--bg);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      padding-bottom:76px;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,select{font:inherit}
    button{border:0}
    .site-container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{
      height:var(--header-h);
      display:flex;
      align-items:center;
      background:rgba(255,255,255,.94);
      border-bottom:1px solid var(--line);
      position:sticky;
      top:0;
      z-index:100;
      backdrop-filter:blur(12px)
    }
    .header-inner{
      width:min(calc(100% - 48px),var(--container));
      margin:0 auto;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:26px
    }
    .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink)}
    .brand-mark{
      width:34px;height:34px;border-radius:10px;background:var(--primary);
      position:relative;box-shadow:inset 0 0 0 5px #dbeaf8
    }
    .brand-mark:before,.brand-mark:after{
      content:"";position:absolute;border-radius:50%;background:#fff
    }
    .brand-mark:before{width:6px;height:6px;left:10px;top:9px}
    .brand-mark:after{width:6px;height:6px;right:9px;bottom:9px}
    .brand-text{font-weight:800;letter-spacing:-.04em;line-height:1.08;font-size:1.04rem}
    .brand-text small{display:block;color:var(--muted);font-size:.63rem;letter-spacing:.08em;font-weight:700;margin-top:3px}
    .desktop-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
    .desktop-nav a{
      color:#587087;font-size:.93rem;font-weight:700;position:relative;padding:27px 0
    }
    .desktop-nav a:after{
      content:"";position:absolute;left:0;bottom:18px;width:0;height:2px;
      background:var(--primary);transition:width .2s ease
    }
    .desktop-nav a:hover,.desktop-nav a.active{color:var(--ink)}
    .desktop-nav a:hover:after,.desktop-nav a.active:after{width:100%}
    .header-actions{display:flex;align-items:center;gap:12px}
    .header-actions .btn-brand{min-height:40px;padding:8px 15px;font-size:.86rem}
    .age-link{font-size:.8rem;color:var(--muted);white-space:nowrap}
    .age-link:hover{color:var(--primary)}
    .btn-brand,.btn-quiet{
      min-height:var(--btn-h);padding:10px 20px;border-radius:10px;
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      font-weight:700;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease
    }
    .btn-brand{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(47,96,152,.2)}
    .btn-brand:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 22px rgba(47,96,152,.28)}
    .btn-brand:active{transform:translateY(0)}
    .btn-quiet{border:1px solid var(--line-strong);background:#fff;color:var(--primary)}
    .btn-quiet:hover{background:var(--surface-blue);border-color:#aac4df;color:var(--primary-dark);transform:translateY(-2px)}
    a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
      outline:3px solid rgba(47,96,152,.34);outline-offset:3px
    }
    .navbar-toggler{
      border:1px solid var(--line-strong);border-radius:9px;padding:8px 10px;
      color:var(--primary);background:#fff
    }
    .navbar-toggler-icon{width:1.35em;height:1.35em;background-image:none;position:relative}
    .navbar-toggler-icon:before{content:"☰";font-size:1.3rem;line-height:1.1}
    .mobile-menu{background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
    .mobile-menu .nav-link{display:block;padding:14px 0;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink)}
    .mobile-menu .nav-link.active{color:var(--primary)}
    .page-head{
      padding:48px 0 42px;
      background:linear-gradient(180deg,#fff 0%,#f5f8fc 100%);
      border-bottom:1px solid var(--line)
    }
    .breadcrumb{margin:0 0 18px;font-size:.83rem;color:var(--muted)}
    .breadcrumb a{color:var(--primary)}
    .head-grid{display:grid;grid-template-columns:1fr auto;gap:32px;align-items:end}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;color:var(--primary);
      font-weight:700;font-size:.82rem;letter-spacing:.08em
    }
    .eyebrow:before{content:"";width:20px;height:1px;background:currentColor}
    h1,h2,h3{color:var(--ink)}
    h1{
      margin:12px 0 13px;font-size:clamp(2rem,4vw,3.6rem);
      line-height:1.2;letter-spacing:-.05em;font-weight:850
    }
    .head-copy{max-width:700px;color:var(--muted);margin:0}
    .status-box{
      min-width:230px;padding:18px 20px;background:#fff;border:1px solid var(--line);
      border-radius:var(--radius-sm);box-shadow:var(--shadow-sm)
    }
    .status-label{font-size:.78rem;color:var(--muted);display:block;margin-bottom:4px}
    .status-value{font-size:1.12rem;color:var(--ink);font-weight:800}
    .status-value span{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--teal);margin:0 7px 2px 0}
    .filter-section{padding:30px 0 36px}
    .filter-panel{
      padding:22px;background:#fff;border:1px solid var(--line);
      border-radius:var(--radius);box-shadow:var(--shadow-sm)
    }
    .filter-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
    .filter-top h2{font-size:1.08rem;margin:0;font-weight:800}
    .filter-top span{font-size:.82rem;color:var(--muted)}
    .form-label{font-size:.8rem;color:var(--ink);font-weight:800;margin-bottom:7px}
    .form-control,.form-select{
      min-height:45px;border:1px solid var(--line-strong);border-radius:9px;
      color:var(--text);background:#fbfdff;font-size:.9rem
    }
    .form-control::placeholder{color:#9aabba}
    .form-control:focus,.form-select:focus{
      border-color:var(--primary);box-shadow:0 0 0 4px rgba(47,96,152,.11)
    }
    .filter-actions{display:flex;align-items:end;gap:10px;height:100%}
    .filter-actions .btn-brand,.filter-actions .btn-quiet{width:100%;padding-left:14px;padding-right:14px}
    .content-section{padding:24px 0 var(--section)}
    .section-bar{display:flex;justify-content:space-between;align-items:end;margin-bottom:22px;gap:20px}
    .section-bar h2{font-size:1.8rem;line-height:1.3;margin:0;font-weight:850;letter-spacing:-.035em}
    .section-bar p{margin:5px 0 0;color:var(--muted);font-size:.9rem}
    .sort-note{font-size:.84rem;color:var(--muted);white-space:nowrap}
    .update-list{display:flex;flex-direction:column;gap:16px}
    .update-item{
      display:grid;grid-template-columns:180px 1fr auto;gap:24px;align-items:center;
      padding:16px;background:var(--surface);border:1px solid var(--line);
      border-radius:var(--radius);box-shadow:var(--shadow-sm);
      transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease
    }
    .update-item:hover{transform:translateY(-3px);border-color:#b7cde2;box-shadow:var(--shadow)}
    .cover{
      aspect-ratio:4/3;border-radius:14px;overflow:hidden;position:relative;
      background:linear-gradient(135deg,#dceaf7,#eef3fa 55%,#d6e0f0)
    }
    .cover:before{
      content:"字幕资料";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
      color:#54718e;font-weight:800;letter-spacing:.12em;font-size:.88rem
    }
    .cover:after{
      content:"";position:absolute;width:90px;height:90px;border:1px solid rgba(47,96,152,.18);
      border-radius:50%;right:-16px;top:-28px;box-shadow:0 0 0 15px rgba(255,255,255,.22)
    }
    .item-meta{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-bottom:7px}
    .tag{
      display:inline-flex;align-items:center;min-height:25px;padding:3px 9px;border-radius:999px;
      background:var(--surface-blue);color:var(--primary);font-size:.74rem;font-weight:800
    }
    .tag.teal{background:#e5f4f1;color:var(--teal)}
    .tag.violet{background:#eeedfa;color:var(--secondary)}
    .item-title{font-size:1.2rem;margin:0 0 6px;color:var(--ink);font-weight:800}
    .item-desc{margin:0;color:var(--muted);font-size:.88rem;line-height:1.65}
    .item-fields{display:flex;gap:16px;flex-wrap:wrap;margin-top:12px;color:#6b8197;font-size:.78rem}
    .item-fields b{color:var(--text);font-weight:700}
    .item-side{text-align:right;min-width:115px}
    .state{display:block;color:var(--teal);font-size:.78rem;font-weight:800;margin-bottom:12px}
    .detail-link{color:var(--primary);font-size:.86rem;font-weight:800;border-bottom:1px solid #aac4df;padding-bottom:3px}
    .detail-link:hover{color:var(--primary-dark);border-color:var(--primary-dark)}
    .feature-strip{
      margin:34px 0 38px;padding:27px 30px;border-radius:var(--radius);
      background:var(--ink);color:#dce9f5;display:grid;grid-template-columns:1.5fr 1fr auto;
      align-items:center;gap:24px;position:relative;overflow:hidden
    }
    .feature-strip:after{
      content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(201,225,246,.18);
      border-radius:50%;right:90px;top:-150px
    }
    .feature-kicker{color:#9ec1e3;font-size:.76rem;font-weight:800;letter-spacing:.12em}
    .feature-strip h3{color:#fff;font-size:1.45rem;margin:5px 0 6px;font-weight:800}
    .feature-strip p{margin:0;color:#b9cada;font-size:.86rem}
    .feature-fields{display:flex;flex-wrap:wrap;gap:8px;position:relative;z-index:1}
    .feature-fields span{padding:5px 10px;border:1px solid rgba(202,225,245,.22);border-radius:999px;font-size:.75rem;color:#d7e7f5}
    .feature-strip .btn-quiet{background:transparent;border-color:#7696b5;color:#fff;position:relative;z-index:1}
    .feature-strip .btn-quiet:hover{background:#fff;color:var(--ink)}
    .pagination-wrap{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:30px}
    .page-number{
      min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
      border:1px solid var(--line-strong);border-radius:9px;background:#fff;color:var(--primary);font-weight:700
    }
    .page-number:hover,.page-number.active{background:var(--primary);border-color:var(--primary);color:#fff}
    .page-more{color:var(--muted);padding:0 4px}
    .info-section{padding:68px 0;background:var(--surface-soft)}
    .info-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:start}
    .info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
    .info-card h2{font-size:1.45rem;margin:0 0 12px;font-weight:850}
    .info-card p{margin:0;color:var(--muted);font-size:.9rem}
    .faq-list{margin-top:18px}
    .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
    .accordion-button{padding:16px 0;background:transparent;color:var(--ink);font-weight:800;box-shadow:none!important}
    .accordion-button:not(.collapsed){color:var(--primary);background:transparent}
    .accordion-button:after{background-size:14px}
    .accordion-body{padding:0 0 17px;color:var(--muted);font-size:.86rem}
    .contact-list{list-style:none;padding:0;margin:20px 0 0}
    .contact-list li{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);font-size:.86rem}
    .contact-list span:first-child{color:var(--muted)}
    .contact-list a{color:var(--primary);font-weight:700}
    .footer{padding:62px 0 24px;background:#fff;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px}
    .footer-brand p{max-width:360px;color:var(--muted);font-size:.82rem;margin:18px 0 0}
    .footer h3{font-size:.9rem;margin:4px 0 14px;font-weight:850}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:7px 0}
    .footer-links a{color:var(--muted);font-size:.84rem}
    .footer-links a:hover{color:var(--primary)}
    .footer-bottom{
      display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:18px;
      border-top:1px solid var(--line);font-size:.75rem;color:var(--muted)
    }
    .footer-bottom a{color:var(--primary)}
    .sticky-cta{
      position:fixed;z-index:90;bottom:0;left:0;right:0;background:rgba(255,255,255,.96);
      border-top:1px solid var(--line-strong);box-shadow:0 -8px 24px rgba(27,64,105,.08);
      padding:12px 0
    }
    .sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
    .sticky-copy strong{display:block;color:var(--ink);font-size:.9rem}
    .sticky-copy span{color:var(--muted);font-size:.76rem}
    .sticky-cta .btn-brand{min-height:40px;padding:8px 17px;font-size:.86rem}
    @media(max-width:991px){
      .desktop-nav,.header-actions{display:none}
      .head-grid{grid-template-columns:1fr}
      .status-box{width:max-content}
      .feature-strip{grid-template-columns:1fr auto}
      .feature-fields{grid-column:1/-1}
      .info-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:2}
    }
    @media(max-width:767px){
      body{padding-bottom:88px}
      .site-container,.header-inner{width:min(calc(100% - 32px),var(--container))}
      .site-header{height:70px}
      .page-head{padding:34px 0 30px}
      h1{font-size:2.15rem}
      .status-box{width:100%;min-width:0}
      .filter-section{padding:22px 0}
      .filter-panel{padding:18px}
      .filter-top{align-items:flex-start;flex-direction:column;gap:3px}
      .update-item{grid-template-columns:112px 1fr;gap:14px;padding:12px}
      .item-side{grid-column:2;text-align:left;min-width:0;margin-top:-5px}
      .item-title{font-size:1rem}
      .item-desc{font-size:.8rem}
      .item-fields{gap:8px;margin-top:7px;font-size:.72rem}
      .feature-strip{grid-template-columns:1fr;padding:23px}
      .feature-strip .btn-quiet{width:max-content}
      .section-bar{align-items:flex-start;flex-direction:column;gap:4px}
      .sort-note{white-space:normal}
      .info-section{padding:48px 0}
      .info-card{padding:22px}
      .footer{padding-top:46px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-grid>div:last-child{grid-column:1/-1}
      .footer-bottom{flex-direction:column;gap:8px;margin-top:30px}
      .sticky-inner{align-items:center}
      .sticky-copy span{display:block;max-width:205px;line-height:1.45}
      .sticky-cta .btn-brand{white-space:nowrap}
    }
    @media(max-width:520px){
      .brand-text{font-size:.9rem}
      .brand-text small{font-size:.56rem}
      .brand-mark{width:30px;height:30px}
      .update-item{grid-template-columns:92px 1fr}
      .cover{border-radius:10px}
      .item-meta{gap:5px}
      .tag{font-size:.67rem;padding:2px 7px}
      .item-desc{display:none}
      .sticky-copy strong{font-size:.82rem}
      .sticky-cta .btn-brand{padding-left:12px;padding-right:12px}
    }

/* roulang page: category2 */
:root{
 --bg:#f5f8fc;
 --surface:#fff;
 --surface-soft:#edf4fb;
 --surface-blue:#e6f0fa;
 --ink:#102a45;
 --text:#30455d;
 --muted:#6f8297;
 --primary:#2f6098;
 --primary-dark:#224d80;
 --secondary:#6867a8;
 --teal:#278479;
 --orange:#b9782d;
 --line:#d9e5f1;
 --line-strong:#c4d6e8;
 --shadow:0 16px 42px rgba(27,64,105,.09);
 --shadow-sm:0 8px 22px rgba(27,64,105,.07);
 --radius:20px;
 --radius-sm:12px;
 --container:1200px;
 --header-h:80px;
 --btn-h:48px;
 --section:78px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--text);background:var(--bg);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.75;padding-bottom:78px}
a{color:inherit;text-decoration:none}
a:hover{color:var(--primary)}
img{display:block;max-width:100%}
button,input,select{font:inherit}
button{border:0}
.site-container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
.section{padding:var(--section) 0;position:relative}
.section-soft{background:var(--surface-soft)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-weight:700;font-size:.82rem;letter-spacing:.08em}
.eyebrow:before{content:"";width:20px;height:1px;background:currentColor}
.section-title{margin:12px 0 14px;color:var(--ink);font-size:clamp(1.85rem,3vw,2.8rem);line-height:1.25;font-weight:800;letter-spacing:-.035em}
.section-intro{max-width:690px;margin:0;color:var(--muted)}
.btn-brand,.btn-quiet{min-height:var(--btn-h);padding:10px 20px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease}
.btn-brand{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(47,96,152,.2)}
.btn-brand:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 22px rgba(47,96,152,.28)}
.btn-brand:active,.btn-quiet:active{transform:translateY(0)}
.btn-quiet{border:1px solid var(--line-strong);background:#fff;color:var(--primary)}
.btn-quiet:hover{background:var(--surface-blue);border-color:#aac4df;color:var(--primary-dark);transform:translateY(-2px)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(47,96,152,.34);outline-offset:3px}
.site-header{height:var(--header-h);display:flex;align-items:center;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;backdrop-filter:blur(12px)}
.header-inner{width:min(calc(100% - 48px),var(--container));margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:26px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink)}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--primary);position:relative;box-shadow:inset 0 0 0 5px #dbeaf8}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;background:#fff}
.brand-mark:before{width:6px;height:6px;left:10px;top:9px}
.brand-mark:after{width:6px;height:6px;right:9px;bottom:9px}
.brand-text{font-weight:800;letter-spacing:-.04em;line-height:1.08;font-size:1.04rem}
.brand-text small{display:block;color:var(--muted);font-size:.63rem;letter-spacing:.08em;font-weight:700;margin-top:3px}
.desktop-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.desktop-nav a{color:#587087;font-size:.93rem;font-weight:700;position:relative;padding:27px 0}
.desktop-nav a:after{content:"";position:absolute;left:0;bottom:18px;width:0;height:2px;background:var(--primary);transition:width .2s ease}
.desktop-nav a:hover,.desktop-nav a.active{color:var(--ink)}
.desktop-nav a:hover:after,.desktop-nav a.active:after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px}
.header-actions .btn-brand{min-height:40px;padding:8px 15px;font-size:.86rem}
.age-link{color:var(--muted);font-size:.8rem;font-weight:700}
.navbar-toggler{border:1px solid var(--line-strong);border-radius:9px;padding:8px 10px;color:var(--primary);background:#fff}
.navbar-toggler-icon{width:1.35em;height:1.35em;background-image:none;position:relative}
.navbar-toggler-icon:before{content:"☰";font-size:1.3rem;line-height:1.1}
.mobile-menu{background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
.mobile-menu .nav-link{display:block;padding:14px 0;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink)}
.mobile-menu .nav-link.active{color:var(--primary)}
.breadcrumb-wrap{padding:25px 0 0}
.breadcrumb{margin:0;color:var(--muted);font-size:.86rem}
.breadcrumb-item+.breadcrumb-item:before{color:#9bb0c3}
.page-head{padding:30px 0 50px;background:#fff;border-bottom:1px solid var(--line)}
.page-head-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:end}
.page-head h1{margin:13px 0 15px;color:var(--ink);font-size:clamp(2.3rem,4vw,4rem);line-height:1.15;font-weight:850;letter-spacing:-.055em}
.page-head p{max-width:720px;margin:0;color:var(--text)}
.profile-panel{display:flex;align-items:center;gap:18px;justify-content:flex-end}
.profile-avatar{width:76px;height:76px;border-radius:22px;background:var(--surface-blue);border:1px solid var(--line-strong);position:relative}
.profile-avatar:before{content:"索";position:absolute;inset:0;display:grid;place-items:center;color:var(--primary);font-size:2rem;font-weight:800}
.profile-meta strong{display:block;color:var(--ink);font-size:1.1rem}
.profile-meta span{display:block;color:var(--muted);font-size:.86rem}
.profile-stats{display:flex;gap:10px;margin-top:8px}
.stat-badge{padding:5px 9px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--primary);font-size:.75rem;font-weight:700}
.topic-nav{padding:22px 0;border-bottom:1px solid var(--line);background:var(--surface-soft)}
.topic-groups{display:flex;gap:30px;align-items:flex-start;flex-wrap:wrap}
.topic-group{display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.topic-group-label{color:var(--ink);font-size:.83rem;font-weight:800}
.topic-pill{padding:6px 12px;border:1px solid var(--line-strong);border-radius:20px;color:var(--text);background:#fff;font-size:.82rem;transition:.2s ease}
.topic-pill:hover,.topic-pill.active{border-color:var(--primary);color:var(--primary);background:#f7fbff}
.explore-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(250px,.65fr);gap:22px;align-items:stretch}
.feature-topic{min-height:390px;padding:36px;display:flex;flex-direction:column;justify-content:flex-end;border-radius:var(--radius);border:1px solid var(--line-strong);background:linear-gradient(145deg,#dcecf8 0%,#fff 64%);box-shadow:var(--shadow);position:relative;overflow:hidden}
.feature-topic:before{content:"主题索引 01";position:absolute;top:27px;left:32px;color:var(--primary);font-size:.75rem;font-weight:800;letter-spacing:.1em}
.feature-topic:after{content:"";position:absolute;width:230px;height:230px;border:1px solid #c8ddec;border-radius:50%;right:-55px;top:-70px;box-shadow:0 0 0 25px rgba(255,255,255,.36),0 0 0 50px rgba(255,255,255,.25)}
.feature-topic h2{max-width:470px;margin:0 0 12px;color:var(--ink);font-size:2rem;line-height:1.3}
.feature-topic p{max-width:530px;margin:0 0 22px;color:var(--text)}
.topic-index{display:flex;gap:8px;flex-wrap:wrap}
.index-tag{padding:5px 10px;border-radius:7px;background:rgba(255,255,255,.82);color:var(--primary);font-size:.78rem;font-weight:700}
.small-topic-list{display:flex;flex-direction:column;gap:14px}
.small-topic{padding:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);transition:.2s ease}
.small-topic:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.small-topic .number{color:var(--secondary);font-size:.75rem;font-weight:800}
.small-topic h3{margin:7px 0 5px;color:var(--ink);font-size:1.12rem}
.small-topic p{margin:0;color:var(--muted);font-size:.86rem}
.status{display:inline-flex;align-items:center;gap:6px;margin-top:11px;color:var(--teal);font-size:.78rem;font-weight:700}
.status:before{content:"";width:7px;height:7px;background:var(--teal);border-radius:50%}
.section-header{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:28px}
.tag-cloud{display:flex;gap:12px;flex-wrap:wrap;max-width:900px}
.cloud-tag{padding:10px 15px;border-radius:10px;background:#fff;border:1px solid var(--line);box-shadow:0 4px 14px rgba(27,64,105,.04);color:var(--primary);font-weight:700;transition:.2s ease}
.cloud-tag:hover{background:var(--surface-blue);border-color:#abc6df;transform:translateY(-2px)}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.content-preview{display:grid;grid-template-columns:190px 1fr;gap:22px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px;box-shadow:var(--shadow-sm)}
.cover-placeholder{aspect-ratio:4/3;border-radius:10px;background:linear-gradient(135deg,#cddfed,#edf4fb);display:grid;place-items:center;color:var(--primary);font-weight:800;font-size:.9rem}
.content-preview h3{margin:7px 0;color:var(--ink);font-size:1.1rem}
.content-preview p{margin:0;color:var(--muted);font-size:.86rem}
.content-link{display:inline-flex;margin-top:12px;color:var(--primary);font-size:.85rem;font-weight:800}
.label{display:inline-block;padding:4px 8px;border-radius:6px;background:var(--surface-blue);color:var(--primary);font-size:.72rem;font-weight:800}
.info-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;border:1px solid var(--line);background:var(--line);margin-top:30px}
.info-cell{background:#fff;padding:22px}
.info-cell strong{display:block;color:var(--ink);font-size:1.45rem;line-height:1.2}
.info-cell span{display:block;color:var(--muted);font-size:.82rem;margin-top:4px}
.faq-list{max-width:850px;margin-top:26px}
.accordion-item{border:1px solid var(--line)!important;border-radius:10px!important;margin-bottom:10px;overflow:hidden;background:#fff}
.accordion-button{color:var(--ink);font-weight:800;background:#fff;box-shadow:none!important;padding:18px 20px}
.accordion-button:not(.collapsed){color:var(--primary);background:var(--surface-soft)}
.accordion-body{color:var(--muted);font-size:.92rem;padding:0 20px 18px}
.cta-band{background:var(--primary);color:#fff;padding:42px 0}
.cta-grid{display:flex;justify-content:space-between;align-items:center;gap:24px}
.cta-band h2{margin:0 0 7px;font-size:1.8rem}
.cta-band p{margin:0;color:#dceaf7}
.cta-band .btn-quiet{background:#fff;border-color:#fff;color:var(--primary)}
.footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand p{max-width:330px;color:var(--muted);font-size:.84rem;margin:18px 0 0}
.footer h3{color:var(--ink);font-size:.95rem;margin:5px 0 15px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin:7px 0;color:var(--muted);font-size:.86rem}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:38px;padding-top:20px;color:var(--muted);font-size:.76rem}
.sticky-cta{position:fixed;z-index:90;left:50%;bottom:18px;transform:translateX(-50%);width:min(calc(100% - 48px),760px);display:flex;align-items:center;justify-content:space-between;gap:18px;padding:10px 12px 10px 20px;background:rgba(255,255,255,.96);border:1px solid var(--line-strong);border-radius:13px;box-shadow:0 12px 34px rgba(27,64,105,.16);backdrop-filter:blur(10px)}
.sticky-cta span{color:var(--text);font-size:.86rem;font-weight:700}
@media(max-width:991px){
 .desktop-nav,.header-actions{display:none}
 .header-inner{justify-content:space-between}
 .page-head-grid{grid-template-columns:1fr}
 .profile-panel{justify-content:flex-start}
 .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
 .footer-grid>div:last-child{grid-column:2}
}
@media(max-width:767px){
 body{padding-bottom:90px}
 .site-container,.header-inner{width:min(calc(100% - 32px),var(--container))}
 .section{padding:54px 0}
 .page-head{padding:22px 0 38px}
 .page-head h1{font-size:2.35rem}
 .profile-avatar{width:62px;height:62px;border-radius:17px}
 .profile-stats{flex-wrap:wrap}
 .topic-groups{gap:16px}
 .explore-layout,.feature-grid{grid-template-columns:1fr}
 .feature-topic{min-height:350px;padding:27px}
 .feature-topic:before{left:25px;top:22px}
 .feature-topic h2{font-size:1.65rem}
 .section-header{display:block}
 .info-strip{grid-template-columns:1fr}
 .content-preview{grid-template-columns:125px 1fr}
 .footer{padding-top:42px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .footer-grid>div:last-child{grid-column:auto}
 .footer-brand{grid-column:1/-1}
 .footer-bottom{display:block}
 .footer-bottom span{display:block;margin-top:7px}
 .sticky-cta{width:calc(100% - 24px);bottom:10px;padding-left:14px}
 .sticky-cta span{font-size:.78rem}
 .sticky-cta .btn-brand{min-height:42px;padding:8px 13px;font-size:.82rem}
}
@media(max-width:520px){
 .breadcrumb-wrap{padding-top:17px}
 .profile-panel{align-items:flex-start}
 .content-preview{grid-template-columns:1fr}
 .cover-placeholder{aspect-ratio:16/8}
 .footer-grid{grid-template-columns:1fr}
 .footer-brand{grid-column:auto}
 .sticky-cta span{max-width:145px}
}