/* roulang page: index */
:root{
      --bg:#07111f;
      --bg-soft:#0c1a2c;
      --panel:rgba(16,35,57,.72);
      --panel-strong:#102943;
      --line:rgba(150,205,255,.16);
      --line-bright:rgba(114,220,255,.42);
      --text:#edf8ff;
      --muted:#9bb4c9;
      --cyan:#66e3ff;
      --blue:#7895ff;
      --warning:#ffb47f;
      --success:#8de0bd;
      --radius:22px;
      --shadow:0 22px 70px rgba(0,0,0,.28);
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      color:var(--text);
      background:
        radial-gradient(circle at 80% 0%,rgba(71,106,220,.22),transparent 34rem),
        radial-gradient(circle at 10% 20%,rgba(46,190,214,.09),transparent 28rem),
        var(--bg);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      line-height:1.7;
      min-width:320px;
    }
    body:before{
      content:"";position:fixed;inset:0;pointer-events:none;opacity:.16;
      background-image:linear-gradient(rgba(130,195,235,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(130,195,235,.06) 1px,transparent 1px);
      background-size:42px 42px;mask-image:linear-gradient(to bottom,#000,transparent 78%);
    }
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .glass{background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(18px)}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(7,17,31,.78);border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}
    .nav-row{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{font-size:18px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .logo span{color:var(--cyan)}
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-link{padding:10px 15px;color:var(--muted);border-radius:12px;transition:.25s}
    .nav-link:hover,.nav-link.active{color:var(--text);background:rgba(111,212,255,.09)}
    .menu-toggle{display:none;border:1px solid var(--line);background:transparent;color:var(--text);border-radius:12px;padding:9px 12px}
    .steps{border-top:1px solid var(--line);display:flex;gap:8px;padding:10px 0;overflow-x:auto}
    .step{display:flex;align-items:center;gap:9px;min-width:max-content;padding:7px 13px;border:1px solid transparent;border-radius:12px;color:var(--muted);font-size:13px}
    .step b{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;color:#06131e;background:#28445e;font-size:12px}
    .step.active{border-color:var(--line-bright);color:var(--text);background:rgba(89,209,240,.08)}
    .step.active b{background:var(--cyan);box-shadow:0 0 18px rgba(102,227,255,.55)}
    section{padding:92px 0}
    .eyebrow{color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
    h1,h2,h3{line-height:1.22;letter-spacing:-.045em}
    h1{font-size:clamp(36px,5.4vw,68px);max-width:760px}
    h2{font-size:clamp(28px,4vw,43px)}
    h3{font-size:20px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
    .section-head p{max-width:580px;color:var(--muted);font-size:15px}
    .hero{padding:84px 0 76px}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
    .hero-copy p{max-width:650px;margin:25px 0;color:var(--muted);font-size:17px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 18px;border-radius:13px;border:1px solid var(--line);transition:.25s;font-weight:700;font-size:14px}
    .btn:hover{transform:translateY(-2px);border-color:var(--line-bright)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,.nav-link:focus-visible,.step:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
    .btn-primary{background:var(--cyan);color:#06131e;box-shadow:0 0 26px rgba(102,227,255,.22)}
    .btn-primary:hover{background:#a5efff;box-shadow:0 0 34px rgba(102,227,255,.4)}
    .btn-ghost{background:rgba(255,255,255,.035);color:var(--text)}
    .hero-note{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:13px}
    .hero-note strong{color:var(--warning);font-weight:700}
    .media-stage{position:relative;min-height:390px;padding:20px;border-radius:28px;overflow:hidden}
    .media-stage:after{content:"";position:absolute;inset:14px;border:1px solid rgba(140,220,255,.14);border-radius:20px;pointer-events:none}
    .media-art{height:350px;border-radius:20px;position:relative;overflow:hidden;background:linear-gradient(135deg,#162c52,#0b1b31 48%,#392f62)}
    .media-art:before,.media-art:after{content:"";position:absolute;border-radius:50%;filter:blur(2px)}
    .media-art:before{width:260px;height:260px;right:-35px;top:-30px;background:rgba(103,219,255,.18)}
    .media-art:after{width:330px;height:330px;left:-120px;bottom:-130px;background:rgba(144,105,255,.24)}
    .silhouette{position:absolute;left:50%;top:50%;width:120px;height:190px;transform:translate(-50%,-48%);opacity:.36;background:linear-gradient(145deg,#b9f0ff,transparent 60%);clip-path:polygon(48% 0,67% 16%,63% 34%,82% 48%,100% 100%,8% 100%,21% 51%,38% 36%,33% 15%)}
    .play{position:absolute;inset:0;display:grid;place-items:center}
    .play span{width:68px;height:68px;border-radius:50%;display:grid;place-items:center;background:rgba(102,227,255,.88);color:#07111f;font-size:24px;padding-left:4px;box-shadow:0 0 35px rgba(102,227,255,.4)}
    .media-tag,.media-time{position:absolute;z-index:2;padding:6px 10px;border-radius:8px;background:rgba(4,12,24,.72);border:1px solid var(--line);font-size:12px}
    .media-tag{top:18px;left:18px;color:var(--cyan)} .media-time{right:18px;bottom:18px;color:var(--text)}
    .stage-caption{position:absolute;z-index:3;left:36px;right:36px;bottom:35px;display:flex;justify-content:space-between;align-items:end}
    .stage-caption small{color:var(--muted)}
    .problem-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:42px}
    .index-list{border-left:1px solid var(--line);padding-left:22px;display:grid;gap:19px;align-content:start}
    .index-list span{color:var(--muted);font-size:14px}.index-list span:first-child{color:var(--cyan)}
    .card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card{padding:24px;border-radius:var(--radius);transition:.25s}
    .card:hover{border-color:var(--line-bright);transform:translateY(-3px)}
    .card p{color:var(--muted);font-size:14px;margin-top:10px}
    .status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--warning);margin-right:8px}
    .status-dot.cool{background:var(--cyan)}
    .workbench{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px}
    .filter-panel,.preview-panel{padding:28px;border-radius:var(--radius)}
    .filter-panel{display:grid;gap:17px}
    label{font-size:13px;color:var(--muted);display:grid;gap:7px}
    input,select,textarea{width:100%;color:var(--text);background:#0b1c30;border:1px solid var(--line);border-radius:12px;padding:12px 14px;outline:none}
    input:focus,select:focus,textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(102,227,255,.1)}
    .chips{display:flex;flex-wrap:wrap;gap:8px}.chip{padding:7px 11px;border-radius:999px;background:rgba(110,222,255,.08);border:1px solid var(--line);font-size:12px;color:var(--muted)}.chip.active{color:var(--cyan);border-color:var(--line-bright)}
    .preview-panel{display:grid;gap:14px}
    .preview-row{display:flex;align-items:center;gap:16px;padding:15px;border-bottom:1px solid var(--line)}
    .thumb{width:105px;aspect-ratio:16/10;border-radius:12px;background:linear-gradient(135deg,#1f4371,#263358,#5c477b);flex:none}
    .preview-row p{color:var(--muted);font-size:13px}.mini-label{margin-left:auto;color:var(--success);font-size:12px}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .metric{padding:25px 18px;border-right:1px solid var(--line)}.metric:last-child{border:0}.metric strong{font-size:32px;display:block;color:var(--cyan);font-variant-numeric:tabular-nums}.metric span{font-size:13px;color:var(--muted)}
    .theme-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:16px}.theme-card{min-height:190px;padding:24px;border-radius:var(--radius);position:relative;overflow:hidden}.theme-card:first-child{grid-row:span 2}.theme-card:before{content:"";position:absolute;inset:auto -30px -60px auto;width:180px;height:180px;border-radius:50%;background:rgba(102,227,255,.14);filter:blur(8px)}.theme-card p{color:var(--muted);font-size:14px;margin-top:12px;max-width:300px}
    .rank-layout{display:grid;grid-template-columns:1fr .8fr;gap:20px}.rank-list{padding:12px 24px;border-radius:var(--radius)}.rank-item{display:grid;grid-template-columns:42px 1fr auto;align-items:center;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}.rank-item:last-child{border:0}.rank-no{color:var(--cyan);font-size:20px;font-weight:800}.rank-item small{display:block;color:var(--muted)}.trend{color:var(--success);font-size:12px}
    .feedback{display:flex;gap:16px;overflow:auto}.feedback .card{min-width:270px}.quote{color:#dcecf6;font-size:15px}
    .faq{display:grid;grid-template-columns:.7fr 1.3fr;gap:38px}.faq-list{display:grid;gap:10px}details{padding:18px 20px;border:1px solid var(--line);border-radius:15px;background:rgba(16,35,57,.55)}summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:20px}summary:after{content:"＋";color:var(--cyan)}details[open]{border-color:var(--line-bright)}details[open] summary:after{content:"－"}details p{color:var(--muted);font-size:14px;margin-top:12px}
    .cta{padding:38px;border-radius:26px;display:flex;align-items:center;justify-content:space-between;gap:25px}.cta p{color:var(--muted);max-width:650px;margin-top:10px}.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    footer{border-top:1px solid var(--line);padding:42px 0 28px;background:rgba(4,12,23,.5)}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}.footer-title{font-weight:800;margin-bottom:12px}.footer-copy,.footer-links a{color:var(--muted);font-size:13px}.footer-links{display:grid;gap:8px}.footer-links a:hover{color:var(--cyan)}.copyright{border-top:1px solid var(--line);margin-top:30px;padding-top:20px;color:#70899e;font-size:12px;display:flex;justify-content:space-between;gap:15px}
    @media(max-width:900px){.hero-grid,.problem-layout,.workbench,.rank-layout,.faq{grid-template-columns:1fr}.hero{padding-top:55px}.theme-grid{grid-template-columns:1fr 1fr}.theme-card:first-child{grid-row:auto}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:640px){.container{width:min(100% - 28px,1180px)}.nav-row{height:68px}.nav-links{display:none;position:absolute;top:68px;left:14px;right:14px;padding:12px;flex-direction:column;align-items:stretch;background:#0b1b2d;border:1px solid var(--line);border-radius:16px}.nav-links.open{display:flex}.menu-toggle{display:block}.hero{padding:48px 0}.hero-copy p{font-size:15px}.media-stage{min-height:320px}.media-art{height:280px}.section-head{display:block}.section-head p{margin-top:12px}.card-grid,.theme-grid{grid-template-columns:1fr}.metrics{grid-template-columns:1fr 1fr}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid var(--line)}.preview-row{align-items:start}.mini-label{display:none}.cta{display:block;padding:27px}.cta-actions{margin-top:20px}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category1 */
:root{
      --bg:#07111f;
      --bg-soft:#0c1a2c;
      --panel:rgba(16,35,57,.72);
      --panel-strong:#102943;
      --line:rgba(150,205,255,.16);
      --line-bright:rgba(114,220,255,.42);
      --text:#edf8ff;
      --muted:#9bb4c9;
      --cyan:#66e3ff;
      --blue:#7895ff;
      --warning:#ffb47f;
      --success:#8de0bd;
      --radius:22px;
      --shadow:0 22px 70px rgba(0,0,0,.28);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;color:var(--text);background:
      radial-gradient(circle at 80% 0%,rgba(71,106,220,.22),transparent 34rem),
      radial-gradient(circle at 10% 20%,rgba(46,190,214,.09),transparent 28rem),var(--bg);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      line-height:1.7;min-width:320px;
    }
    body:before{
      content:"";position:fixed;inset:0;pointer-events:none;opacity:.16;
      background-image:linear-gradient(rgba(130,195,235,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(130,195,235,.06) 1px,transparent 1px);
      background-size:42px 42px;mask-image:linear-gradient(to bottom,#000,transparent 78%);
    }
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .glass{background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(18px)}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(7,17,31,.78);border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}
    .nav-row{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{font-size:18px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .logo span{color:var(--cyan)}
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-link{padding:10px 15px;color:var(--muted);border-radius:12px;transition:.25s}
    .nav-link:hover,.nav-link.active{color:var(--text);background:rgba(111,212,255,.09)}
    .menu-toggle{display:none;border:1px solid var(--line);background:transparent;color:var(--text);border-radius:12px;padding:9px 12px}
    .stepbar{border-top:1px solid rgba(150,205,255,.08);padding:12px 0}
    .steps{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none}
    .steps::-webkit-scrollbar{display:none}
    .step{display:flex;align-items:center;gap:9px;min-width:max-content;padding:7px 12px;border:1px solid transparent;border-radius:12px;color:var(--muted);font-size:12px}
    .step:hover,.step.current{color:var(--text);border-color:var(--line-bright);background:rgba(102,227,255,.06)}
    .step b{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;color:#07111f;background:var(--muted);font-size:11px}
    .step.current b{background:var(--cyan);box-shadow:0 0 18px rgba(102,227,255,.4)}
    main{position:relative}
    .page-intro{padding:64px 0 34px}
    .eyebrow{color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:.16em}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(32px,5vw,56px);line-height:1.16;letter-spacing:-.055em;margin:14px 0 18px}
    h2{font-size:clamp(26px,3vw,38px);line-height:1.25;letter-spacing:-.04em;margin-bottom:12px}
    h3{font-size:19px;line-height:1.35;margin-bottom:7px}
    .lead{max-width:700px;color:var(--muted);font-size:16px}
    .breadcrumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
    .breadcrumbs a:hover{color:var(--cyan)}
    section{padding:54px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:25px}
    .section-head p{max-width:580px;color:var(--muted);font-size:14px;margin-bottom:0}
    .workspace{display:grid;grid-template-columns:.82fr 1.18fr;gap:18px;align-items:stretch}
    .panel{padding:26px;border-radius:var(--radius)}
    .category-summary{display:flex;flex-direction:column;justify-content:space-between;min-height:360px}
    .summary-mark{width:62px;height:62px;border-radius:18px;display:grid;place-items:center;color:var(--cyan);font-size:25px;background:linear-gradient(145deg,rgba(102,227,255,.16),rgba(120,149,255,.08));border:1px solid var(--line-bright);margin-bottom:28px}
    .category-summary p{color:var(--muted);font-size:14px}
    .chips{display:flex;flex-wrap:wrap;gap:8px}
    .chip{padding:7px 11px;border-radius:999px;background:rgba(110,222,255,.08);border:1px solid var(--line);font-size:12px;color:var(--muted)}
    .chip.active{color:var(--cyan);border-color:var(--line-bright)}
    .filter-panel{min-height:360px}
    .filter-top{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:22px}
    .filter-title{font-size:18px;font-weight:800}
    .clear-link{color:var(--cyan);font-size:13px}
    .form-grid{display:grid;grid-template-columns:1.4fr .8fr;gap:13px;margin-bottom:17px}
    input,select,textarea{width:100%;color:var(--text);background:#0b1c30;border:1px solid var(--line);border-radius:12px;padding:12px 14px;outline:none}
    input::placeholder,textarea::placeholder{color:#67829a}
    input:focus,select:focus,textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(102,227,255,.1)}
    .filter-label{display:block;color:var(--muted);font-size:12px;margin-bottom:7px}
    .filter-status{display:flex;gap:9px;align-items:center;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--muted);font-size:13px}
    .status-dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 12px var(--success)}
    .filter-actions{display:flex;gap:10px;margin-top:20px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 18px;border-radius:13px;border:1px solid var(--line);transition:.25s;font-weight:700;font-size:14px}
    .btn:hover{transform:translateY(-2px);border-color:var(--line-bright)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,.nav-link:focus-visible,.step:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
    .btn-primary{background:var(--cyan);color:#06131e;box-shadow:0 0 26px rgba(102,227,255,.22)}
    .btn-primary:hover{background:#a5efff;box-shadow:0 0 34px rgba(102,227,255,.4)}
    .btn-ghost{background:rgba(255,255,255,.035);color:var(--text)}
    .content-layout{display:grid;grid-template-columns:1.18fr .82fr;gap:18px}
    .featured{min-height:310px;border-radius:var(--radius);padding:26px;position:relative;overflow:hidden;background:linear-gradient(135deg,#162c52,#0b1b31 52%,#322d5d);border:1px solid var(--line)}
    .featured:before{content:"";position:absolute;width:300px;height:300px;right:-90px;top:-100px;border-radius:50%;background:rgba(102,227,255,.14);filter:blur(7px)}
    .featured:after{content:"";position:absolute;width:260px;height:260px;left:-110px;bottom:-150px;border-radius:50%;background:rgba(144,105,255,.22);filter:blur(6px)}
    .media-info{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:space-between}
    .media-badges{display:flex;justify-content:space-between;gap:10px}
    .badge{display:inline-flex;align-items:center;width:max-content;padding:6px 10px;border-radius:8px;background:rgba(4,12,24,.7);border:1px solid var(--line);font-size:12px;color:var(--cyan)}
    .badge.warn{color:var(--warning)}
    .play-icon{width:55px;height:55px;border-radius:50%;display:grid;place-items:center;background:rgba(102,227,255,.14);border:1px solid var(--line-bright);font-size:21px;color:var(--cyan);margin:45px 0 20px}
    .media-info p{color:#b4c9da;max-width:430px;font-size:14px}
    .list-stack{display:grid;gap:14px}
    .content-item{display:grid;grid-template-columns:112px 1fr;gap:16px;align-items:center;padding:15px;border-radius:18px;transition:.25s}
    .content-item:hover{border-color:var(--line-bright);transform:translateX(3px)}
    .cover{height:88px;border-radius:13px;background:linear-gradient(145deg,#263d69,#111e36 55%,#52406d);position:relative;overflow:hidden}
    .cover:after{content:"";position:absolute;width:90px;height:90px;right:-24px;top:-26px;background:rgba(102,227,255,.19);border-radius:50%;filter:blur(5px)}
    .item-meta{display:flex;flex-wrap:wrap;gap:7px;color:var(--muted);font-size:12px;margin-top:8px}
    .item-title{font-size:16px;font-weight:700}
    .item-action{color:var(--cyan);font-size:12px;margin-top:8px;display:inline-block}
    .notice{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .notice-card{padding:22px;border-radius:18px}
    .notice-card p{color:var(--muted);font-size:14px;margin:8px 0 0}
    .icon-line{display:flex;gap:12px;align-items:flex-start}
    .icon-box{flex:0 0 34px;height:34px;border-radius:10px;display:grid;place-items:center;color:var(--cyan);background:rgba(102,227,255,.1);border:1px solid var(--line)}
    .faq{display:grid;grid-template-columns:.72fr 1.28fr;gap:40px;align-items:start}
    .faq-intro p{color:var(--muted);font-size:14px}
    .faq-list{display:grid;gap:10px}
    details{border:1px solid var(--line);border-radius:15px;background:rgba(16,35,57,.56);overflow:hidden}
    summary{padding:17px 20px;cursor:pointer;font-weight:700;list-style:none;position:relative;padding-right:45px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";position:absolute;right:19px;color:var(--cyan);font-size:19px;top:14px}
    details[open]{border-left:2px solid var(--cyan);background:rgba(16,35,57,.86)}
    details[open] summary:after{content:"－"}
    details p{padding:0 20px 18px;color:var(--muted);font-size:14px;margin:0}
    .cta{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;padding:30px;border-radius:var(--radius);background:linear-gradient(105deg,rgba(102,227,255,.12),rgba(120,149,255,.08));border:1px solid var(--line-bright)}
    .cta p{color:var(--muted);margin:8px 0 0;font-size:14px}
    footer{padding:54px 0 25px;border-top:1px solid var(--line);background:rgba(4,12,23,.45)}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;padding-bottom:38px}
    .footer-title{font-weight:800;margin-bottom:13px}
    .footer-copy{max-width:370px;color:var(--muted);font-size:13px;margin:0}
    .footer-links{display:grid;gap:8px;color:var(--muted);font-size:13px}
    .footer-links a:hover{color:var(--cyan)}
    .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid var(--line);color:#718ba2;font-size:12px}
    .muted-note{color:var(--muted);font-size:13px}
    @media(max-width:900px){
      .hero-grid,.workspace,.content-layout,.faq{grid-template-columns:1fr}
      .category-summary{min-height:auto}
      .faq{gap:24px}
    }
    @media(max-width:700px){
      .container{width:min(100% - 28px,600px)}
      .nav-row{height:68px}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;top:68px;left:14px;right:14px;padding:10px;flex-direction:column;align-items:stretch;background:rgba(7,17,31,.97);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
      .nav-links.open{display:flex}
      .nav-link{padding:12px 14px}
      .page-intro{padding:44px 0 20px}
      section{padding:40px 0}
      .form-grid,.notice,.cta,.footer-grid{grid-template-columns:1fr}
      .panel,.featured{padding:21px}
      .content-item{grid-template-columns:92px 1fr}
      .cover{height:76px}
      .cta .btn{width:100%}
      .copyright{flex-direction:column;gap:5px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
    }