/* roulang page: index */
:root{
      --paper:#f5f3ee;--surface:#fff;--ink:#242525;--muted:#686964;--line:#ddd9d1;
      --coral:#e85c45;--coral-dark:#c94735;--teal:#247d76;--teal-pale:#e4f0ec;
      --wine:#7f3b42;--charcoal:#292d2c;--shadow:0 16px 40px rgba(36,37,37,.09);
      --radius:16px;--mono:"SFMono-Regular",Consolas,monospace;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none;transition:.2s ease}
    a:hover{color:var(--teal)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    :focus-visible{outline:3px solid rgba(36,125,118,.35);outline-offset:3px}
    .container{max-width:1180px}
    .topline{height:34px;background:var(--charcoal);color:#f6eee5;font-size:12px;letter-spacing:.04em}
    .topline .container{height:100%;display:flex;align-items:center;justify-content:space-between}
    .age-note{color:#f2b0a3}
    .site-nav{height:74px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;transition:.25s}
    .site-nav.scrolled{box-shadow:0 8px 25px rgba(36,37,37,.08)}
    .navbar-brand{font-weight:800;letter-spacing:-.04em;font-size:21px;display:flex;align-items:center;gap:10px}
    .logo-mark{width:25px;height:19px;border-left:7px solid var(--coral);border-bottom:5px solid var(--teal);position:relative}
    .logo-mark:after{content:"";position:absolute;width:7px;height:7px;background:var(--ink);right:-2px;top:-4px}
    .navbar-nav{gap:8px}
    .nav-link{padding:8px 13px!important;color:var(--muted);font-size:14px;font-weight:600;border-radius:9px}
    .nav-link:hover,.nav-link.active{background:var(--teal-pale);color:var(--teal)}
    .nav-activity{font:11px var(--mono);color:var(--teal);margin-right:14px}
    .btn-main,.btn-outline,.btn-text{border-radius:11px;padding:11px 18px;font-size:14px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.2s}
    .btn-main{background:var(--coral);border:1px solid var(--coral);color:#fff}
    .btn-main:hover{background:var(--coral-dark);border-color:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(232,92,69,.24)}
    .btn-outline{background:#fff;border:1px solid var(--line);color:var(--ink)}
    .btn-outline:hover{background:var(--teal-pale);border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}
    .btn-text{padding-left:0;color:var(--teal);border:0;background:none}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font:11px var(--mono);letter-spacing:.12em;text-transform:uppercase;margin-bottom:16px}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
    h1,h2,h3{font-weight:800;letter-spacing:-.045em;line-height:1.2;margin:0 0 18px}
    h1{font-size:clamp(40px,5vw,68px);max-width:620px}
    h2{font-size:clamp(30px,4vw,46px)}
    h3{font-size:20px}
    .section{padding:105px 0}
    .section-intro{max-width:640px;color:var(--muted);margin-bottom:42px}
    .hero{min-height:650px;padding:80px 0 65px;display:flex;align-items:center;position:relative;overflow:hidden}
    .hero:before{content:"字幕 / 乱码 / 状态 / 说明";position:absolute;right:-30px;top:90px;color:rgba(36,125,118,.07);font:72px var(--mono);white-space:nowrap;transform:rotate(-12deg)}
    .hero-copy{position:relative;z-index:2}
    .hero h1 span{color:var(--coral);position:relative}
    .hero h1 span:after{content:"";position:absolute;height:7px;background:#f4b1a5;left:0;right:3px;bottom:2px;z-index:-1}
    .hero-lead{font-size:18px;color:var(--muted);max-width:560px;margin:22px 0 28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:30px}
    .badge-soft{background:var(--teal-pale);color:var(--teal);border:1px solid #c8e0d9;border-radius:999px;padding:6px 11px;font-size:12px;font-weight:700}
    .badge-risk{background:#f3e5e3;color:var(--wine);border-color:#e7caca}
    .state-line{display:flex;gap:22px;margin-top:38px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
    .state-line b{color:var(--ink);font:12px var(--mono);margin-right:5px}
    .stage{height:430px;background:#d9e6df;border:1px solid #c7d8d0;border-radius:24px;position:relative;padding:22px;box-shadow:var(--shadow);overflow:hidden}
    .stage:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 17px,rgba(36,125,118,.06) 18px),linear-gradient(135deg,transparent 35%,rgba(232,92,69,.12));}
    .stage-main{height:100%;background:#303735;border-radius:15px;padding:24px;color:#f6f1e9;position:relative;overflow:hidden}
    .stage-main:after{content:"字幕轨 01 02 03 04 05";position:absolute;bottom:32px;left:25px;right:25px;border-top:2px solid var(--coral);padding-top:12px;color:#b9cec7;font:12px var(--mono)}
    .stage-title{font-size:25px;font-weight:800;max-width:220px;line-height:1.3}
    .scan{height:76px;margin:32px 0 22px;background:repeating-linear-gradient(0deg,#53615b 0 4px,#3a4541 5px 9px);border-left:5px solid var(--coral);display:flex;align-items:center;padding:18px;font:17px var(--mono);color:#fff}
    .play{width:62px;height:62px;border-radius:50%;background:var(--coral);color:#fff;border:0;display:grid;place-items:center;font-size:25px;position:absolute;right:28px;bottom:76px;box-shadow:0 8px 18px rgba(0,0,0,.24)}
    .float-card{position:absolute;background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:13px;padding:13px 15px;box-shadow:var(--shadow);font-size:12px;z-index:3}
    .float-a{right:-15px;top:48px}.float-b{left:-18px;bottom:30px}
    .problem-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .problem-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0}
    .problem-item{padding:28px 25px;border-right:1px solid var(--line)}
    .problem-item:last-child{border:0}.problem-item strong{display:block;font-size:18px;margin-bottom:6px}.problem-item p{margin:0;color:var(--muted);font-size:14px}
    .solution{background:var(--teal-pale)}
    .track{display:grid;grid-template-columns:110px 1fr;gap:24px;align-items:start}
    .track-number{font:34px var(--mono);color:var(--coral);padding-top:25px}
    .solution-card{background:#fff;border:1px solid #cfe0da;border-radius:var(--radius);padding:25px;margin-bottom:16px;display:grid;grid-template-columns:150px 1fr auto;gap:22px;align-items:center;transition:.2s}
    .solution-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .abstract-cover{height:92px;border-radius:11px;background:linear-gradient(135deg,#343c39 0 42%,#e85c45 43% 52%,#b8d7cd 53%);position:relative;overflow:hidden}
    .abstract-cover:after{content:"字幕 00:24:18";position:absolute;bottom:10px;left:12px;color:#fff;font:11px var(--mono)}
    .solution-card p{color:var(--muted);font-size:14px;margin:0}
    .progress{height:5px;background:#e8e5de;margin-top:14px;border-radius:20px;overflow:hidden}.progress-bar{background:var(--teal)}
    .result{background:var(--charcoal);color:#f6f0e7}
    .result .section-intro{color:#b9c2bc}
    .result-grid{display:grid;grid-template-columns:4fr 7fr;gap:70px;align-items:start}
    .metric-wrap{display:flex;gap:30px;flex-wrap:wrap}.metric strong{display:block;font:42px var(--mono);color:#f18a74}.metric span{font-size:12px;color:#aab6af}
    .timeline{border-left:1px solid #65726c;padding-left:25px}
    .timeline-item{position:relative;padding:0 0 27px}.timeline-item:before{content:"";position:absolute;left:-31px;top:9px;width:10px;height:10px;border-radius:50%;background:var(--coral);border:2px solid var(--charcoal)}
    .timeline-item h3{font-size:17px;margin-bottom:4px}.timeline-item p{color:#b9c2bc;font-size:14px;margin:0}
    .info-list{margin-top:55px;border-top:1px solid #53605b}
    .info-row{display:grid;grid-template-columns:50px 1fr 120px auto;gap:18px;align-items:center;padding:18px 0;border-bottom:1px solid #53605b}
    .info-row small{color:#aab6af}.info-row .badge-soft{font-size:11px}
    .testimonials{background:#fff}
    .quote-layout{display:grid;grid-template-columns:1.4fr .8fr;gap:18px}
    .quote-card{background:#f8f6f1;border:1px solid var(--line);border-radius:var(--radius);padding:32px;min-height:220px}
    .quote-card.featured{background:var(--coral);color:#fff;min-height:300px}.quote-card.featured p{color:#fff}
    .quote-mark{font:48px Georgia;color:var(--coral);line-height:1}.featured .quote-mark{color:#ffd0c7}
    .quote-card p{font-size:19px;line-height:1.65;margin:10px 0 25px}.quote-meta{font-size:12px;color:var(--muted)}.featured .quote-meta{color:#ffe8e1}
    .faq{background:#f0eee8}.accordion-item{border:1px solid var(--line)!important;border-radius:12px!important;overflow:hidden;margin-bottom:10px;background:#fff}.accordion-button{font-weight:700;color:var(--ink);background:#fff;padding:18px 20px;box-shadow:none!important}.accordion-button:not(.collapsed){color:var(--teal);background:var(--teal-pale)}.accordion-body{color:var(--muted);font-size:14px;padding:0 20px 20px}
    .cta{padding:95px 0}.cta-panel{background:var(--coral);border-radius:24px;padding:44px 50px;color:#fff;position:relative;overflow:hidden}.cta-panel:after{content:"字幕轨 // STATUS";position:absolute;right:-8px;bottom:15px;color:rgba(255,255,255,.16);font:35px var(--mono);transform:rotate(-8deg)}.cta-panel p{max-width:620px;color:#fff0eb}.cta-panel .btn-outline{background:#fff;border-color:#fff;color:var(--coral-dark)}.cta-panel .btn-outline:hover{background:#ffe8e1}
    footer{background:var(--charcoal);color:#d6d8d2;border-top:4px solid var(--coral);padding:50px 0 25px;font-size:13px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px}.footer-brand{font-size:20px;font-weight:800;color:#fff;margin-bottom:12px}.footer-copy{color:#aab2ac;max-width:360px}.footer-title{color:#fff;font-weight:700;margin-bottom:13px}.footer-links{display:grid;gap:7px;color:#aab2ac}.footer-links a:hover{color:#f18a74}.copyright{border-top:1px solid #4d5651;margin-top:40px;padding-top:18px;color:#8f9992;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    @media(max-width:991px){.nav-activity{display:none}.hero{padding-top:55px}.stage{margin-top:35px}.result-grid{gap:35px}.solution-card{grid-template-columns:120px 1fr}.solution-card .btn-text{grid-column:2}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:767px){.topline .container{justify-content:center}.site-nav{height:auto}.navbar{padding:14px 0}.navbar-collapse{padding-top:15px}.navbar-nav{gap:2px}.nav-link{padding:10px!important}.hero{padding:55px 0 45px;min-height:auto}.hero h1{font-size:43px}.hero-lead{font-size:16px}.state-line{gap:9px;justify-content:space-between}.stage{height:340px}.float-a{right:-5px}.float-b{left:-5px}.problem-grid{grid-template-columns:1fr}.problem-item{border-right:0;border-bottom:1px solid var(--line)}.section{padding:70px 0}.track{grid-template-columns:1fr;gap:0}.track-number{padding-top:0}.solution-card{grid-template-columns:1fr;gap:15px}.solution-card .btn-text{grid-column:auto}.abstract-cover{height:120px}.result-grid,.quote-layout{grid-template-columns:1fr}.info-row{grid-template-columns:32px 1fr auto}.info-row small{display:none}.footer-grid{grid-template-columns:1fr;gap:28px}.cta-panel{padding:32px 25px}.cta-panel .hero-actions{flex-direction:column;align-items:stretch}}
    @media(max-width:520px){h2{font-size:33px}.hero-actions .btn-main,.hero-actions .btn-outline{width:100%}.metric-wrap{gap:20px}.info-row{gap:9px}.info-row .badge-soft{display:none}}

/* roulang page: category2 */
:root{
      --paper:#f5f3ee;--surface:#fff;--ink:#242525;--muted:#686964;--line:#ddd9d1;
      --coral:#e85c45;--coral-dark:#c94735;--teal:#247d76;--teal-pale:#e4f0ec;
      --wine:#7f3b42;--charcoal:#292d2c;--shadow:0 16px 40px rgba(36,37,37,.09);
      --radius:16px;--mono:"SFMono-Regular",Consolas,monospace
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none;transition:.2s ease}
    a:hover{color:var(--teal)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    .container{max-width:1180px}
    .site-nav{height:74px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;transition:.25s}
    .site-nav.scrolled{box-shadow:0 8px 25px rgba(36,37,37,.08)}
    .navbar-brand{font-weight:800;letter-spacing:-.04em;font-size:21px;display:flex;align-items:center;gap:10px}
    .logo-mark{width:25px;height:19px;border-left:7px solid var(--coral);border-bottom:5px solid var(--teal);position:relative;display:inline-block}
    .logo-mark:after{content:"";position:absolute;width:7px;height:7px;background:var(--ink);right:-2px;top:-4px}
    .navbar-nav{gap:8px}
    .nav-link{padding:8px 13px!important;color:var(--muted);font-size:14px;font-weight:600;border-radius:9px}
    .nav-link:hover,.nav-link.active{background:var(--teal-pale);color:var(--teal)}
    .nav-activity{font:11px var(--mono);color:var(--teal);margin-right:14px}
    .btn-main,.btn-outline,.btn-text{border-radius:11px;padding:11px 18px;font-size:14px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.2s}
    .btn-main{background:var(--coral);border:1px solid var(--coral);color:#fff}
    .btn-main:hover{background:var(--coral-dark);border-color:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(232,92,69,.24)}
    .btn-outline{background:#fff;border:1px solid var(--line);color:var(--ink)}
    .btn-outline:hover{background:var(--teal-pale);border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}
    .btn-text{padding-left:0;color:var(--teal);border:0;background:none}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font:11px var(--mono);letter-spacing:.12em;margin-bottom:14px}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
    .page-hero{padding:66px 0 54px;background:#e8eee9;border-bottom:1px solid #d4ded8;position:relative;overflow:hidden}
    .page-hero:after{content:"00 01 10 11 字幕 状态 规范";position:absolute;right:-20px;bottom:18px;color:rgba(36,125,118,.1);font:54px var(--mono);transform:rotate(-8deg);white-space:nowrap}
    .breadcrumb{font-size:13px;color:var(--muted);margin-bottom:28px}
    .breadcrumb a{color:var(--teal)}
    h1,h2,h3{font-weight:800;letter-spacing:-.035em;line-height:1.25}
    h1{font-size:clamp(36px,5vw,64px);max-width:720px;margin:0 0 18px}
    h1 span{color:var(--coral)}
    .hero-lead{max-width:680px;color:var(--muted);font-size:18px;margin:0 0 24px}
    .hero-meta,.tag-row{display:flex;gap:9px;flex-wrap:wrap;align-items:center}
    .badge-soft{background:var(--teal-pale);color:var(--teal);border:1px solid #c8e0d9;border-radius:999px;padding:5px 11px;font-size:12px;font-weight:700}
    .badge-risk{background:#f3e5e3;color:var(--wine);border-color:#e7caca}
    .update{font:11px var(--mono);color:var(--muted)}
    .campaign{margin-top:35px;background:var(--charcoal);border-radius:20px;padding:24px;color:#f6f1e9;display:flex;align-items:center;gap:26px;max-width:700px;box-shadow:var(--shadow)}
    .progress-ring{width:94px;height:94px;border-radius:50%;background:conic-gradient(var(--coral) 0 68%,#56615c 68% 100%);display:grid;place-items:center;flex:0 0 auto}
    .progress-ring:before{content:"";width:70px;height:70px;border-radius:50%;background:var(--charcoal);position:absolute}
    .progress-ring span{position:relative;font:700 20px var(--mono);z-index:1}
    .campaign h3{font-size:18px;margin:0 0 5px}
    .campaign p{font-size:13px;color:#bdc6c0;margin:0}
    .campaign-info{flex:1}
    .campaign-levels{display:flex;gap:8px;margin-top:12px}
    .level{border:1px solid #56615c;border-radius:8px;padding:5px 8px;font-size:11px;color:#d8dfda}
    .section{padding:82px 0}
    .section-heading{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:32px}
    .section-heading h2{font-size:34px;margin:0}
    .section-heading p{max-width:480px;color:var(--muted);margin:0}
    .tabs-wrap{overflow-x:auto;padding-bottom:5px;margin-bottom:34px}
    .nav-pills{flex-wrap:nowrap;gap:10px;min-width:max-content}
    .nav-pills .nav-link{border:1px solid var(--line);background:#fff;color:var(--muted);padding:10px 18px!important}
    .nav-pills .nav-link.active,.nav-pills .nav-link:hover{background:var(--coral);border-color:var(--coral);color:#fff}
    .masonry{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:10px;gap:18px}
    .m-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:0 5px 15px rgba(36,37,37,.035);display:flex;flex-direction:column;overflow:hidden;transition:.22s}
    .m-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#bfd6ce}
    .feature{grid-column:span 2;grid-row:span 32}
    .standard{grid-column:span 1;grid-row:span 27}
    .wide{grid-column:span 2;grid-row:span 18;background:var(--teal-pale)}
    .rule-card{grid-column:span 2;grid-row:span 22;background:#f3e5e3;border-color:#e7caca}
    .cover{height:128px;border-radius:12px;background:#d9e6df;position:relative;overflow:hidden;margin-bottom:16px;display:flex;align-items:end;padding:14px}
    .feature .cover{height:205px}
    .cover:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 15px,rgba(36,125,118,.12) 16px),linear-gradient(135deg,rgba(232,92,69,.22),transparent 55%)}
    .cover:after{content:"字幕轨 01 / 02 / 03";position:absolute;bottom:14px;left:14px;right:14px;border-top:2px solid var(--coral);padding-top:7px;color:#3d514c;font:11px var(--mono)}
    .cover-label{position:relative;z-index:1;background:#fff;padding:4px 8px;border-radius:6px;font:11px var(--mono);color:var(--teal)}
    .m-card h3{font-size:19px;margin:0 0 7px}
    .m-card p{color:var(--muted);font-size:14px;line-height:1.7;margin:0 0 14px}
    .card-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px}
    .status{display:inline-flex;align-items:center;gap:6px;color:var(--teal);font-size:12px}
    .status:before{content:"";width:7px;height:7px;background:var(--teal);border-radius:50%}
    .status.warn{color:var(--wine)}.status.warn:before{background:var(--wine)}
    .status-line{background:var(--charcoal);color:#f7f2e9;padding:26px 30px;border-radius:16px;display:grid;grid-template-columns:1.2fr 2fr 1fr;gap:26px;align-items:center;margin-top:46px}
    .status-line h3{font-size:20px;margin:0}.status-line p{margin:0;color:#bcc6c0;font-size:13px}
    .ticks{display:flex;justify-content:space-between;gap:10px;border-top:2px solid var(--coral);padding-top:12px;color:#d6dfd9;font:11px var(--mono)}
    .status-code{color:#f4b1a5;font:22px var(--mono);text-align:right}
    .bottom-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:26px;align-items:start}
    .faq-box{background:#f0eee8;padding:30px;border-radius:18px}
    .accordion-item{border:1px solid var(--line)!important;border-radius:12px!important;overflow:hidden;margin-bottom:10px;background:#fff}
    .accordion-button{font-weight:700;color:var(--ink);background:#fff;padding:17px 19px;box-shadow:none!important}
    .accordion-button:not(.collapsed){color:var(--teal);background:var(--teal-pale)}
    .accordion-body{color:var(--muted);font-size:14px;line-height:1.8}
    .cta-card{background:var(--coral);color:#fff;border-radius:18px;padding:32px;position:sticky;top:100px}
    .cta-card h2{font-size:28px;margin:0 0 12px}.cta-card p{color:#ffe8e1;font-size:14px}
    .cta-card .btn-outline{background:transparent;border-color:#ffd0c7;color:#fff;margin-top:10px}
    footer{background:var(--charcoal);color:#f6f1e9;border-top:4px solid var(--coral);padding:55px 0 22px}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px}
    .footer-brand{font-size:20px;font-weight:800;display:flex;align-items:center;gap:10px}
    .footer-copy{color:#b9c2bc;font-size:13px;max-width:390px;margin-top:16px}
    .footer-title{font-size:13px;font-weight:800;margin-bottom:13px}
    .footer-links{display:flex;flex-direction:column;gap:8px;color:#b9c2bc;font-size:13px}
    .footer-links a:hover{color:#fff}
    .copyright{border-top:1px solid #4d5752;margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#9eaaa3;font-size:12px}
    :focus-visible{outline:3px solid rgba(36,125,118,.35);outline-offset:3px}
    @media(max-width:991px){
      .nav-activity{display:none}.masonry{grid-template-columns:repeat(2,1fr)}
      .feature,.rule-card,.wide{grid-column:span 2}.status-line{grid-template-columns:1fr 1.5fr}
      .status-code{text-align:left}.bottom-grid{grid-template-columns:1fr}
      .cta-card{position:static}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}
    }
    @media(max-width:767px){
      .site-nav{height:auto;min-height:70px}.navbar{padding:14px 0}
      .navbar-collapse{padding:14px 0}.navbar-nav{gap:3px}.nav-link{padding:10px!important}
      .page-hero{padding:42px 0}.hero-lead{font-size:16px}
      .campaign{align-items:flex-start;flex-wrap:wrap;padding:20px}.campaign .btn-main{width:100%}
      .section{padding:58px 0}.section-heading{display:block}.section-heading h2{font-size:28px;margin-bottom:12px}
      .masonry{display:grid;grid-template-columns:1fr;grid-auto-rows:auto}.feature,.standard,.wide,.rule-card{grid-column:span 1;grid-row:auto}
      .feature .cover,.cover{height:155px}.status-line{display:block}.ticks{margin:22px 0}.status-code{text-align:left}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:span 2}
      .copyright{display:block}.copyright span{display:block;margin-bottom:7px}
    }
    @media(max-width:520px){h1{font-size:38px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}}

/* roulang page: category1 */
:root{
 --paper:#f5f3ee;--surface:#fff;--ink:#242525;--muted:#686964;--line:#ddd9d1;
 --coral:#e85c45;--coral-dark:#c94735;--teal:#247d76;--teal-pale:#e4f0ec;
 --wine:#7f3b42;--charcoal:#292d2c;--shadow:0 16px 40px rgba(36,37,37,.09);
 --radius:16px;--mono:"SFMono-Regular",Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
a{color:inherit;text-decoration:none;transition:.2s ease}
a:hover{color:var(--teal)}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
.container{max-width:1180px}
.site-nav{min-height:74px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;transition:.25s}
.site-nav.scrolled{box-shadow:0 8px 25px rgba(36,37,37,.08)}
.navbar{min-height:74px;padding:0}
.navbar-brand{font-weight:800;letter-spacing:-.04em;font-size:21px;display:flex;align-items:center;gap:10px;color:var(--ink)}
.logo-mark{width:25px;height:19px;border-left:7px solid var(--coral);border-bottom:5px solid var(--teal);position:relative;display:inline-block;flex:0 0 auto}
.logo-mark:after{content:"";position:absolute;width:7px;height:7px;background:var(--ink);right:-2px;top:-4px}
.navbar-nav{gap:8px}
.nav-link{padding:8px 13px!important;color:var(--muted);font-size:14px;font-weight:700;border-radius:9px}
.nav-link:hover,.nav-link.active{background:var(--teal-pale);color:var(--teal)}
.nav-activity{font:11px var(--mono);color:var(--teal);margin-right:14px;white-space:nowrap}
.btn-main,.btn-outline,.btn-text{border-radius:11px;padding:11px 18px;font-size:14px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.2s;border:1px solid transparent}
.btn-main{background:var(--coral);border-color:var(--coral);color:#fff}
.btn-main:hover{background:var(--coral-dark);border-color:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(232,92,69,.24)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-outline:hover{background:var(--teal-pale);border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}
.btn-text{padding:0;background:none;color:var(--teal)}
.btn-text:hover{color:var(--coral);gap:12px}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,.accordion-button:focus-visible{outline:3px solid rgba(36,125,118,.28);outline-offset:3px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font:11px var(--mono);letter-spacing:.12em;text-transform:uppercase;margin-bottom:15px}
.eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
.badge-soft,.badge-risk,.badge-dark{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:700;border:1px solid}
.badge-soft{background:var(--teal-pale);color:var(--teal);border-color:#c8e0d9}
.badge-risk{background:#f3e5e3;color:var(--wine);border-color:#e7caca}
.badge-dark{background:#edf0ed;color:#4f5854;border-color:#d7ddd8}
.page-head{padding:51px 0 38px;background:var(--surface);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-head:after{content:"字幕 识别 / 字符 检查 / 状态";position:absolute;right:-30px;top:25px;color:rgba(36,125,118,.055);font:42px var(--mono);white-space:nowrap;transform:rotate(-8deg)}
.breadcrumb{margin:0 0 17px;position:relative;z-index:1}
.breadcrumb-item,.breadcrumb-item a{font-size:13px;color:var(--muted)}
.breadcrumb-item.active{color:var(--teal)}
.breadcrumb-item+.breadcrumb-item::before{color:#aaa79f}
.page-head h1{font-size:clamp(31px,4vw,48px);line-height:1.22;letter-spacing:-.055em;margin:0 0 15px;font-weight:850;position:relative;z-index:1}
.page-head h1 em{font-style:normal;color:var(--coral);text-decoration:underline;text-decoration-color:#f4b1a5;text-decoration-thickness:7px;text-underline-offset:-2px}
.page-summary{max-width:720px;color:var(--muted);margin:0;position:relative;z-index:1}
.head-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:21px;position:relative;z-index:1}
.section{padding:64px 0}
.filter-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;position:sticky;top:94px}
.filter-title{font-weight:800;font-size:16px;margin:0 0 5px}
.filter-note{font-size:12px;color:var(--muted);margin-bottom:15px}
.filter-panel .accordion-item{border:0!important;border-top:1px solid var(--line)!important;border-radius:0!important;margin:0;background:transparent}
.filter-panel .accordion-button{padding:15px 0;background:transparent;font-size:14px;color:var(--ink)}
.filter-panel .accordion-button:not(.collapsed){color:var(--teal);box-shadow:none!important}
.filter-panel .accordion-body{padding:0 0 15px}
.form-check{margin:0 0 9px}
.form-check-input{border-color:#bbb7af;width:1.05em;height:1.05em}
.form-check-input:checked{background-color:var(--teal);border-color:var(--teal)}
.form-check-input:focus{box-shadow:0 0 0 .22rem rgba(36,125,118,.16)}
.form-check-label{font-size:13px;color:#555752;display:flex;justify-content:space-between;gap:9px;width:100%}
.count{font:11px var(--mono);color:#99978f}
.result-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-bottom:17px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.result-total{font-size:14px;font-weight:700}
.result-total span{color:var(--coral);font-family:var(--mono)}
.sort-select{border:1px solid var(--line);border-radius:10px;padding:9px 34px 9px 12px;background-color:#fff;font-size:13px;color:var(--ink)}
.sort-select:focus{border-color:var(--teal);box-shadow:0 0 0 .22rem rgba(36,125,118,.13)}
.filter-tags{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:18px}
.current-tag{font-size:12px;border:1px solid #c8e0d9;color:var(--teal);background:var(--teal-pale);padding:5px 9px;border-radius:999px}
.current-tag b{font-weight:800;margin-left:5px}
.media-card{display:grid;grid-template-columns:215px 1fr auto;gap:22px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin-bottom:15px;transition:.22s}
.media-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c6d8d1}
.cover{min-height:120px;border-radius:11px;overflow:hidden;position:relative;background:#31423e}
.cover:before{content:"字幕轨 / 01:28";position:absolute;left:12px;bottom:12px;color:#fff;font:11px var(--mono);padding-top:7px;border-top:2px solid var(--coral);z-index:1}
.cover:after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 17px,rgba(255,255,255,.07) 18px),linear-gradient(130deg,rgba(36,125,118,.8),rgba(36,37,37,.35) 55%,rgba(232,92,69,.5))}
.cover-two{background:#796c61}.cover-three{background:#44686b}.cover-four{background:#805d58}.cover-five{background:#5a6256}
.media-body h2{font-size:18px;line-height:1.45;margin:0 0 7px;font-weight:800}
.media-body p{font-size:13px;color:var(--muted);margin:0 0 11px;line-height:1.7}
.meta-line{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12px;color:#88867f}
.arrow-link{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--teal)}
.media-card:hover .arrow-link{background:var(--coral);border-color:var(--coral);color:#fff}
.notice-card{margin:20px 0;background:var(--teal-pale);border:1px solid #c9dfd8;border-radius:var(--radius);padding:24px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.notice-card h2{font-size:18px;margin:0 0 4px;font-weight:800}
.notice-card p{color:#51645e;font-size:13px;margin:0}
.progress-mini{height:5px;background:#d2e4dd;border-radius:99px;overflow:hidden;margin-top:12px;max-width:420px}
.progress-mini span{display:block;height:100%;width:72%;background:var(--teal)}
.pagination{gap:7px;margin:38px 0 0}
.page-link{border:1px solid var(--line);border-radius:9px!important;color:var(--ink);font-size:13px;font-weight:700;padding:8px 13px;background:#fff}
.page-link:hover{background:var(--teal-pale);border-color:var(--teal);color:var(--teal)}
.page-item.active .page-link{background:var(--coral);border-color:var(--coral);color:#fff}
.faq-wrap{background:#efede7;border-top:1px solid var(--line)}
.section-title{font-size:30px;letter-spacing:-.045em;font-weight:850;line-height:1.35;margin:0 0 12px}
.section-intro{max-width:650px;color:var(--muted);margin:0 0 27px}
.accordion-item{border:1px solid var(--line)!important;border-radius:12px!important;overflow:hidden;margin-bottom:10px;background:#fff}
.accordion-button{font-weight:750;color:var(--ink);background:#fff;padding:18px 20px;box-shadow:none!important}
.accordion-button:not(.collapsed){color:var(--teal);background:var(--teal-pale)}
.accordion-button::after{background-size:1rem}
.accordion-body{color:var(--muted);font-size:14px;line-height:1.85;padding:17px 20px}
.rule-strip{background:var(--charcoal);border-radius:var(--radius);padding:25px 28px;color:#f7f3eb;display:flex;align-items:center;justify-content:space-between;gap:22px;margin-top:42px}
.rule-strip strong{display:block;font-size:17px;margin-bottom:4px}
.rule-strip p{margin:0;color:#c6cfca;font-size:13px}
footer{background:var(--charcoal);color:#e5e1d9;border-top:4px solid var(--coral);padding:58px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:55px;padding-bottom:39px}
.footer-brand{font-size:20px;font-weight:800;display:flex;align-items:center;gap:10px;color:#fff}
.footer-copy{font-size:13px;line-height:1.8;color:#b9c0bc;max-width:420px;margin:16px 0 0}
.footer-title{font-size:13px;font-weight:800;color:#fff;margin-bottom:13px}
.footer-links{display:flex;flex-direction:column;gap:8px}
.footer-links a{font-size:13px;color:#b9c0bc}
.footer-links a:hover{color:#8ec9bf}
.copyright{border-top:1px solid #4d5552;padding-top:20px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#aeb5b0;font-size:12px}
.navbar-toggler{font-size:13px!important;padding:8px 12px!important}
@media(max-width:991px){
 .navbar-collapse{background:#fff;padding:12px 0 18px}
 .navbar-nav{margin:7px 0!important}
 .nav-activity{display:inline-block;margin:8px 0 12px}
 .filter-panel{position:static;margin-bottom:24px}
 .media-card{grid-template-columns:180px 1fr auto}
 .footer-grid{gap:30px}
}
@media(max-width:767px){
 body{font-size:15px}
 .page-head{padding:35px 0 29px}
 .page-head:after{font-size:28px;top:10px}
 .section{padding:45px 0}
 .page-head h1{font-size:32px}
 .result-toolbar{align-items:flex-start;flex-direction:column}
 .media-card{grid-template-columns:1fr;padding:12px;gap:14px}
 .cover{min-height:155px}
 .arrow-link{display:none}
 .notice-card,.rule-strip{align-items:flex-start;flex-direction:column}
 .footer-grid{grid-template-columns:1fr;gap:28px}
 .copyright{flex-direction:column;gap:5px}
}
@media(max-width:520px){
 .navbar-brand{font-size:18px}
 .btn-main,.btn-outline{width:100%}
 .head-meta{gap:6px}
 .section-title{font-size:25px}
 .filter-panel{padding:16px}
 .sort-select{width:100%}
}