/* roulang page: index */
:root{
      --bg:#07111f;
      --bg-deep:#050b15;
      --panel:rgba(16,32,55,.78);
      --panel-soft:rgba(20,43,72,.54);
      --panel-bright:rgba(25,52,86,.86);
      --line:rgba(154,202,255,.16);
      --line-strong:rgba(105,205,255,.42);
      --text:#f2f7ff;
      --muted:#9fb1c8;
      --soft:#c9d7e8;
      --cyan:#6ee7ff;
      --blue:#5796ff;
      --violet:#a995ff;
      --green:#8ff0d0;
      --radius-lg:28px;
      --radius-md:18px;
      --radius-sm:12px;
      --shadow:0 22px 70px rgba(0,0,0,.28);
      --glow:0 0 0 1px rgba(110,231,255,.2),0 0 32px rgba(70,175,255,.16);
      --container:1200px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at 14% 8%,rgba(40,111,190,.18),transparent 28rem),
        radial-gradient(circle at 86% 20%,rgba(113,77,208,.14),transparent 25rem),
        var(--bg);
      font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
      font-size:16px;
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
    }
    body::before{
      content:"";
      position:fixed;inset:0;pointer-events:none;opacity:.22;
      background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
      background-size:72px 72px;
      mask-image:linear-gradient(to bottom,black,transparent 75%);
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin-inline:auto}
    .site-header{
      position:sticky;top:14px;z-index:20;
      padding-top:14px;
    }
    .nav-shell{
      min-height:70px;display:flex;align-items:center;gap:24px;
      padding:12px 16px 12px 22px;
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(7,17,31,.76);
      backdrop-filter:blur(18px);
      box-shadow:0 14px 40px rgba(0,0,0,.2);
      transition:background .25s,border-color .25s,box-shadow .25s;
    }
    .site-header.scrolled .nav-shell{background:rgba(5,13,25,.94);border-color:var(--line-strong);box-shadow:0 18px 48px rgba(0,0,0,.34)}
    .brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;letter-spacing:-.03em}
    .brand-mark{
      width:36px;height:36px;display:grid;place-items:center;
      color:#061321;border-radius:11px;
      background:linear-gradient(145deg,var(--cyan),#8ba9ff);
      box-shadow:0 0 22px rgba(110,231,255,.32);
      font-size:18px;
    }
    .brand-text{font-size:18px}
    .nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
    .nav-links a,.footer-links a{color:var(--muted);transition:color .2s,background .2s}
    .nav-links a{padding:9px 12px;border-radius:10px;font-size:14px}
    .nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(110,231,255,.1)}
    .nav-tools{display:flex;align-items:center;gap:9px}
    .search-mini{position:relative}
    .search-mini input{
      width:164px;height:40px;padding:0 12px 0 35px;
      color:var(--text);background:rgba(255,255,255,.055);
      border:1px solid var(--line);border-radius:10px;transition:.25s;
    }
    .search-mini input::placeholder{color:#8195ad}
    .search-mini input:focus{width:190px;border-color:var(--cyan);box-shadow:0 0 0 4px rgba(110,231,255,.1)}
    .search-icon{position:absolute;left:12px;top:9px;color:var(--muted);font-size:16px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:42px;padding:0 17px;border:1px solid transparent;border-radius:11px;
      font-size:14px;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(1px)}
    .btn-primary{color:#061321;background:var(--cyan);box-shadow:0 0 24px rgba(110,231,255,.24)}
    .btn-primary:hover{background:#a6f2ff;box-shadow:0 0 34px rgba(110,231,255,.42)}
    .btn-secondary{color:var(--soft);background:rgba(255,255,255,.045);border-color:var(--line-strong)}
    .btn-secondary:hover{color:var(--text);background:rgba(110,231,255,.1);border-color:var(--cyan)}
    .menu-toggle{display:none;background:none;color:var(--text);border:1px solid var(--line);border-radius:9px;width:40px;height:40px}
    main{overflow:hidden}
    .hero{padding:92px 0 86px;position:relative}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center}
    .eyebrow,.tag{
      display:inline-flex;align-items:center;gap:7px;
      color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:.12em;
    }
    .eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(42px,6vw,76px);line-height:1.12;letter-spacing:-.065em;margin:20px 0 24px;max-width:700px}
    h1 em{font-style:normal;color:var(--cyan)}
    .hero-copy{max-width:650px;color:var(--soft);font-size:18px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
    .signal-strip{display:flex;gap:22px;flex-wrap:wrap;margin-top:38px;color:var(--muted);font-size:13px}
    .signal-strip strong{display:block;color:var(--text);font-size:18px;line-height:1.2}
    .hero-board{
      position:relative;padding:22px;border:1px solid var(--line-strong);
      border-radius:var(--radius-lg);background:linear-gradient(150deg,rgba(27,61,96,.82),rgba(10,24,43,.8));
      box-shadow:var(--shadow),var(--glow);transform:rotate(1deg);
    }
    .board-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:18px;border-bottom:1px solid var(--line)}
    .board-title{font-size:14px;font-weight:800}.live-dot{color:var(--green);font-size:12px}
    .query{margin:22px 0 16px;padding:13px 15px;border:1px solid var(--line);border-radius:12px;color:var(--cyan);background:rgba(0,0,0,.18)}
    .index-row{display:flex;align-items:center;gap:12px;padding:15px 0;border-bottom:1px solid rgba(154,202,255,.1)}
    .index-row:last-child{border-bottom:0}
    .index-num{color:var(--violet);font-size:12px;font-weight:800}.index-name{font-weight:700;flex:1}.index-meta{color:var(--muted);font-size:12px}
    .progress{height:5px;margin-top:22px;background:rgba(255,255,255,.1);border-radius:9px;overflow:hidden}.progress i{display:block;width:72%;height:100%;background:linear-gradient(90deg,var(--cyan),var(--violet));border-radius:inherit}
    .section{padding:92px 0}.section-alt{background:rgba(5,14,27,.45);border-block:1px solid rgba(154,202,255,.08)}
    .section-head{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-bottom:36px}
    .section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.25;letter-spacing:-.045em;margin:12px 0 0}
    .section-head p{max-width:510px;color:var(--muted);margin:0}
    .problem-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}
    .problem-intro{padding:30px;border-left:2px solid var(--cyan);background:linear-gradient(90deg,rgba(110,231,255,.08),transparent);border-radius:0 18px 18px 0}
    .problem-intro p{color:var(--soft);margin:0}
    .issue-list{display:grid;gap:12px}
    .issue{display:grid;grid-template-columns:52px 1fr auto;gap:18px;align-items:center;padding:20px 22px;border:1px solid var(--line);border-radius:16px;background:var(--panel);transition:.25s}
    .issue:hover{border-color:var(--line-strong);transform:translateX(5px);box-shadow:var(--glow)}
    .issue-no{color:var(--cyan);font-weight:800;font-size:13px}.issue h3{font-size:17px;margin:0 0 3px}.issue p{color:var(--muted);font-size:13px;margin:0}.issue-arrow{color:var(--muted)}
    .solution{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .wide-panel{grid-column:span 2;padding:30px;min-height:190px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--panel-bright);position:relative;overflow:hidden}
    .wide-panel::after{content:"";position:absolute;width:220px;height:220px;right:-40px;bottom:-100px;border:1px solid rgba(110,231,255,.3);border-radius:50%;box-shadow:0 0 0 25px rgba(110,231,255,.04),0 0 0 55px rgba(110,231,255,.025)}
    .wide-panel h3{font-size:25px;margin:0 0 10px}.wide-panel p,.solution-card p{color:var(--muted);max-width:650px}
    .filter-line{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}.tag{letter-spacing:0;padding:6px 11px;border:1px solid var(--line);border-radius:999px;color:var(--soft);background:rgba(255,255,255,.04)}.tag.active{color:#061321;background:var(--cyan);border-color:var(--cyan)}
    .solution-card{padding:26px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--panel);transition:.25s}.solution-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}.solution-card h3{font-size:19px;margin:0 0 7px}.icon-box{width:38px;height:38px;display:grid;place-items:center;border-radius:11px;color:var(--cyan);background:rgba(110,231,255,.1);margin-bottom:18px}
    .channel-links{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}.text-link{color:var(--cyan);font-weight:700;font-size:14px}.text-link:hover{text-decoration:underline;text-underline-offset:5px}
    .result-band{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
    .result-item{padding:28px;background:rgba(14,31,53,.85)}.result-item:first-child{background:linear-gradient(135deg,rgba(48,101,164,.5),rgba(14,31,53,.9))}.result-item strong{display:block;font-size:30px;color:var(--cyan);line-height:1.2;margin-bottom:8px}.result-item span{color:var(--muted);font-size:13px}.result-item p{color:var(--soft);font-size:14px;margin:9px 0 0}
    .quotes{display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:16px;align-items:start}.quote{padding:27px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--panel);box-shadow:0 14px 35px rgba(0,0,0,.13)}.quote:nth-child(2){margin-top:32px;background:linear-gradient(145deg,rgba(37,72,115,.72),rgba(15,29,50,.78))}.quote-mark{color:var(--cyan);font-size:34px;line-height:1;margin-bottom:12px}.quote p{font-size:17px;line-height:1.7;color:var(--soft);min-height:84px}.quote-user{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px}.avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--violet),var(--cyan));opacity:.75}
    .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px}.faq-intro p{color:var(--muted)}.faq-list{display:grid;gap:10px}details{border:1px solid var(--line);border-radius:14px;background:var(--panel);transition:.2s}details[open]{border-color:var(--line-strong);background:var(--panel-bright)}summary{cursor:pointer;list-style:none;padding:18px 20px;font-weight:700;display:flex;justify-content:space-between;gap:20px}summary::-webkit-details-marker{display:none}summary::after{content:"＋";color:var(--cyan);font-size:20px;line-height:1}details[open] summary::after{content:"－"}details p{padding:0 20px 20px;color:var(--muted);font-size:14px;margin:0}
    .cta{padding:38px 0 96px}.cta-panel{position:relative;overflow:hidden;padding:48px 54px;border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:linear-gradient(110deg,rgba(27,69,111,.8),rgba(28,32,77,.72));box-shadow:var(--shadow)}.cta-panel::before{content:"";position:absolute;width:330px;height:330px;border:1px solid rgba(110,231,255,.2);border-radius:50%;right:-80px;top:-150px;box-shadow:0 0 0 28px rgba(110,231,255,.04),0 0 0 58px rgba(110,231,255,.025)}.cta-panel h2{font-size:clamp(27px,4vw,43px);margin:0 0 10px;letter-spacing:-.045em}.cta-panel p{color:var(--soft);max-width:650px;margin-bottom:25px}.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}
    footer{padding:36px 0 28px;border-top:1px solid var(--line);background:rgba(3,9,18,.7)}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:50px}.footer-brand p{max-width:300px;color:var(--muted);font-size:13px}.footer-title{font-size:13px;color:var(--text);font-weight:800;margin-bottom:13px}.footer-links{display:grid;gap:7px;font-size:13px}.footer-links a:hover{color:var(--cyan)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:34px;padding-top:20px;border-top:1px solid var(--line);color:#71859e;font-size:12px}
    .status-note{display:inline-flex;align-items:center;gap:7px;color:var(--green);font-size:12px}.status-note::before{content:"";width:7px;height:7px;background:var(--green);border-radius:50%;box-shadow:0 0 12px var(--green)}
    @media(max-width:1024px){.nav-links{gap:0}.search-mini input{width:130px}.search-mini input:focus{width:150px}.hero-grid{gap:35px}.result-band{grid-template-columns:repeat(2,1fr)}.result-item:first-child{grid-column:span 2}}
    @media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.site-header{top:8px;padding-top:8px}.nav-shell{padding:10px 12px 10px 16px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:0;right:0;top:70px;padding:10px;border:1px solid var(--line-strong);border-radius:16px;background:rgba(5,14,27,.97);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-shell.open .nav-links{display:flex}.nav-links a{padding:12px}.nav-tools{margin-left:auto}.nav-tools .btn-secondary{display:none}.search-mini{display:none}.hero{padding:70px 0 60px}.hero-grid,.problem-layout,.faq-grid{grid-template-columns:1fr}.hero-board{transform:none}.section{padding:66px 0}.section-head{display:block}.section-head p{margin-top:16px}.solution{grid-template-columns:1fr}.wide-panel{grid-column:auto}.quotes{grid-template-columns:1fr}.quote:nth-child(2){margin-top:0}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:span 2}}
    @media(max-width:520px){h1{font-size:42px}.hero-copy{font-size:16px}.hero-actions .btn{width:100%}.signal-strip{gap:16px}.issue{grid-template-columns:36px 1fr}.issue-arrow{display:none}.result-band{grid-template-columns:1fr}.result-item:first-child{grid-column:auto}.cta-panel{padding:32px 24px}.cta-actions .btn{width:100%}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}}
    @media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category1 */
:root{
 --bg:#07111f;--bg-deep:#050b15;--panel:rgba(16,32,55,.78);--panel-soft:rgba(20,43,72,.54);
 --panel-bright:rgba(25,52,86,.86);--line:rgba(154,202,255,.16);--line-strong:rgba(105,205,255,.42);
 --text:#f2f7ff;--muted:#9fb1c8;--soft:#c9d7e8;--cyan:#6ee7ff;--blue:#5796ff;--violet:#a995ff;
 --green:#8ff0d0;--radius-lg:28px;--radius-md:18px;--radius-sm:12px;
 --shadow:0 22px 70px rgba(0,0,0,.28);--glow:0 0 0 1px rgba(110,231,255,.2),0 0 32px rgba(70,175,255,.16);
 --container:1200px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--text);background:radial-gradient(circle at 12% 8%,rgba(40,111,190,.18),transparent 28rem),radial-gradient(circle at 88% 18%,rgba(113,77,208,.14),transparent 25rem),var(--bg);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.2;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(to bottom,#000,transparent 75%)}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input{font:inherit}button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin-inline:auto}
.site-header{position:sticky;top:14px;z-index:20;padding-top:14px}
.nav-shell{min-height:70px;display:flex;align-items:center;gap:24px;padding:12px 16px 12px 22px;border:1px solid var(--line);border-radius:20px;background:rgba(7,17,31,.76);backdrop-filter:blur(18px);box-shadow:0 14px 40px rgba(0,0,0,.2);transition:.25s}
.site-header.scrolled .nav-shell{background:rgba(5,13,25,.94);border-color:var(--line-strong);box-shadow:0 18px 48px rgba(0,0,0,.34)}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;letter-spacing:-.03em}.brand-mark{width:36px;height:36px;display:grid;place-items:center;color:#061321;border-radius:11px;background:linear-gradient(145deg,var(--cyan),#8ba9ff);box-shadow:0 0 22px rgba(110,231,255,.32);font-size:18px}.brand-text{font-size:18px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}.nav-links a,.footer-links a{color:var(--muted);transition:.2s}.nav-links a{padding:9px 12px;border-radius:10px;font-size:14px}.nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(110,231,255,.1)}
.nav-tools{display:flex;align-items:center;gap:9px}.search-mini{position:relative}.search-mini input{width:164px;height:40px;padding:0 12px 0 35px;color:var(--text);background:rgba(255,255,255,.055);border:1px solid var(--line);border-radius:10px;transition:.25s}.search-mini input::placeholder{color:#8195ad}.search-mini input:focus{width:190px;border-color:var(--cyan);box-shadow:0 0 0 4px rgba(110,231,255,.1);outline:0}.search-icon{position:absolute;left:12px;top:7px;color:var(--muted);font-size:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:0 17px;border:1px solid transparent;border-radius:11px;font-size:14px;font-weight:700;transition:.2s}.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(1px)}.btn:focus-visible,.nav-links a:focus-visible,.footer-links a:focus-visible{outline:3px solid rgba(110,231,255,.55);outline-offset:3px}.btn-primary{color:#061321;background:var(--cyan);box-shadow:0 0 24px rgba(110,231,255,.24)}.btn-primary:hover{background:#a6f2ff;box-shadow:0 0 34px rgba(110,231,255,.42)}.btn-secondary{color:var(--soft);background:rgba(255,255,255,.045);border-color:var(--line-strong)}.btn-secondary:hover{color:var(--text);background:rgba(110,231,255,.1);border-color:var(--cyan)}
.menu-toggle{display:none;background:none;color:var(--text);border:1px solid var(--line);border-radius:9px;width:40px;height:40px}
main{overflow:hidden}.hero{padding:88px 0 72px;position:relative}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}.eyebrow,.tag{display:inline-flex;align-items:center;gap:7px;color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:.1em}.eyebrow:before{content:"";width:22px;height:1px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
h1,h2,h3,p{margin-top:0}.hero h1{font-size:clamp(38px,6vw,72px);line-height:1.12;letter-spacing:-.06em;margin:18px 0;color:var(--text)}.hero h1 span{color:var(--cyan)}.hero-copy{max-width:650px;color:var(--soft);font-size:18px;line-height:1.9}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.hero-board{padding:24px;border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:linear-gradient(150deg,rgba(27,61,96,.82),rgba(10,24,43,.8));box-shadow:var(--shadow),var(--glow);transform:rotate(1deg)}.board-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.board-title{font-weight:800}.status{color:var(--green);font-size:12px}.search-large{display:flex;gap:10px;margin-bottom:18px}.search-large input{min-width:0;flex:1;background:rgba(4,13,26,.62);border:1px solid var(--line);border-radius:10px;color:var(--text);padding:12px 14px;outline:0}.search-large input:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(110,231,255,.1)}.index-row{display:flex;align-items:center;gap:12px;padding:15px 0;border-bottom:1px solid rgba(154,202,255,.1)}.index-row:last-child{border:0}.index-dot{width:9px;height:9px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}.index-meta{margin-left:auto;color:var(--muted);font-size:12px}.tag{letter-spacing:0;padding:6px 11px;border:1px solid var(--line);border-radius:999px;color:var(--soft);background:rgba(255,255,255,.04)}.tag.active{color:#061321;background:var(--cyan);border-color:var(--cyan)}
.section{padding:86px 0}.section-alt{background:rgba(5,14,27,.45);border-block:1px solid rgba(154,202,255,.08)}.section-head{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-bottom:34px}.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.25;letter-spacing:-.045em;margin:12px 0 0}.section-head p{max-width:520px;color:var(--muted);margin:0}
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;padding:18px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--panel-soft);margin-bottom:26px}.filter-bar button{border:0}.filter-bar button:focus-visible{outline:3px solid rgba(110,231,255,.45);outline-offset:2px}
.feature-panel{display:grid;grid-template-columns:1.25fr .75fr;gap:28px;padding:30px;border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:var(--panel);box-shadow:var(--shadow)}.feature-visual{min-height:250px;border-radius:20px;padding:24px;background:linear-gradient(135deg,rgba(87,150,255,.24),rgba(169,149,255,.12)),#0b1d35;display:flex;align-items:end;position:relative;overflow:hidden}.feature-visual:after{content:"字幕检索";position:absolute;right:24px;top:22px;color:rgba(242,247,255,.22);font-size:42px;font-weight:900;letter-spacing:-.08em}.scan-line{height:5px;width:66%;background:var(--cyan);box-shadow:0 0 22px var(--cyan);border-radius:8px}.feature-copy{align-self:center}.feature-copy h3{font-size:26px;margin:12px 0}.feature-copy p{color:var(--muted)}.mini-list{display:grid;gap:12px;margin:22px 0}.mini-list div{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:10px;color:var(--soft)}.mini-list small{color:var(--muted)}
.topic-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.topic-card{padding:26px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--panel);transition:.25s}.topic-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}.topic-card.large{grid-row:span 2;background:linear-gradient(145deg,rgba(25,52,86,.86),rgba(16,32,55,.72))}.topic-card h3{font-size:21px;margin:14px 0 8px}.topic-card p{color:var(--muted);margin-bottom:20px}.text-link{color:var(--cyan);font-weight:700}.text-link:hover{text-decoration:underline}
.timeline{border-left:1px solid var(--line-strong);margin:10px 0 0 12px;padding-left:30px;display:grid;gap:28px}.timeline-item{position:relative}.timeline-item:before{content:"";position:absolute;left:-37px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 5px rgba(110,231,255,.1),0 0 18px var(--cyan)}.timeline-item h3{margin-bottom:6px}.timeline-item p{color:var(--muted);margin-bottom:0}
.faq-list{max-width:850px;margin:auto}.faq-list details{border-bottom:1px solid var(--line);padding:20px 0}.faq-list summary{cursor:pointer;list-style:none;font-weight:700;display:flex;justify-content:space-between;gap:20px}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"＋";color:var(--cyan);font-size:20px}.faq-list details[open] summary:after{content:"－"}.faq-answer{color:var(--muted);padding:12px 36px 0 0}
.cta{padding:34px;border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:radial-gradient(circle at 90% 20%,rgba(87,150,255,.2),transparent 30%),var(--panel);display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:var(--shadow)}.cta h2{font-size:clamp(26px,4vw,42px);margin:10px 0}.cta p{color:var(--muted);margin:0}.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
footer{padding:58px 0 24px;background:rgba(4,10,19,.64);border-top:1px solid rgba(154,202,255,.08)}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px}.footer-brand p{color:var(--muted);max-width:350px;margin-top:16px}.footer-title{font-size:13px;font-weight:800;margin-bottom:14px;color:var(--soft)}.footer-links{display:grid;gap:8px;font-size:14px}.footer-links a:hover{color:var(--cyan)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:20px;margin-top:42px;color:#71849b;font-size:12px}
@media(max-width:1024px){.hero-grid{gap:34px}.nav-shell{gap:12px}.search-mini input{width:130px}.feature-panel{grid-template-columns:1fr}}
@media(max-width:768px){.container{width:min(var(--container),calc(100% - 32px))}.site-header{top:6px;padding-top:6px}.nav-shell{position:relative;flex-wrap:wrap;padding:10px 12px 10px 16px}.menu-toggle{display:block;margin-left:auto}.nav-tools{order:3;width:100%;display:none}.nav-tools.open{display:flex}.nav-tools .search-mini{flex:1}.nav-tools input,.nav-tools input:focus{width:100%}.nav-links{display:none;order:4;width:100%;flex-direction:column;align-items:stretch;margin:0;padding-top:8px;border-top:1px solid var(--line)}.nav-links.open{display:flex}.nav-links a{padding:11px 12px}.hero{padding:64px 0 50px}.hero-grid{grid-template-columns:1fr}.hero-board{transform:none}.section{padding:64px 0}.section-head{display:block}.section-head p{margin-top:16px}.topic-grid{grid-template-columns:1fr}.topic-card.large{grid-row:auto}.cta{display:block}.cta-actions{margin-top:24px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media(max-width:480px){.hero h1{font-size:42px}.hero-actions,.cta-actions{display:grid;grid-template-columns:1fr}.btn{width:100%}.feature-panel{padding:18px}.feature-visual{min-height:190px;padding:18px}.filter-bar{overflow:auto;flex-wrap:nowrap}.filter-bar .tag{white-space:nowrap}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category2 */
:root{
 --bg:#07111f;--bg-deep:#050b15;--panel:rgba(16,32,55,.78);--panel-soft:rgba(20,43,72,.54);--panel-bright:rgba(25,52,86,.86);
 --line:rgba(154,202,255,.16);--line-strong:rgba(105,205,255,.42);--text:#f2f7ff;--muted:#9fb1c8;--soft:#c9d7e8;
 --cyan:#6ee7ff;--blue:#5796ff;--violet:#a995ff;--green:#8ff0d0;--danger:#ff9eaf;
 --radius-lg:28px;--radius-md:18px;--radius-sm:12px;--shadow:0 22px 70px rgba(0,0,0,.28);
 --glow:0 0 0 1px rgba(110,231,255,.2),0 0 32px rgba(70,175,255,.16);--container:1200px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--text);background:radial-gradient(circle at 14% 8%,rgba(40,111,190,.18),transparent 28rem),radial-gradient(circle at 86% 20%,rgba(113,77,208,.14),transparent 25rem),var(--bg);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.22;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(to bottom,black,transparent 75%)}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input{font:inherit}button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin-inline:auto}
.site-header{position:sticky;top:14px;z-index:20;padding-top:14px}
.nav-shell{min-height:70px;display:flex;align-items:center;gap:24px;padding:12px 16px 12px 22px;border:1px solid var(--line);border-radius:20px;background:rgba(7,17,31,.76);backdrop-filter:blur(18px);box-shadow:0 14px 40px rgba(0,0,0,.2);transition:.25s}
.site-header.scrolled .nav-shell{background:rgba(5,13,25,.94);border-color:var(--line-strong);box-shadow:0 18px 48px rgba(0,0,0,.34)}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;letter-spacing:-.03em}
.brand-mark{width:36px;height:36px;display:grid;place-items:center;color:#061321;border-radius:11px;background:linear-gradient(145deg,var(--cyan),#8ba9ff);box-shadow:0 0 22px rgba(110,231,255,.32);font-size:18px}
.brand-text{font-size:18px}.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a,.footer-links a{color:var(--muted);transition:.2s}
.nav-links a{padding:9px 12px;border-radius:10px;font-size:14px}
.nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(110,231,255,.1)}
.nav-tools{display:flex;align-items:center;gap:9px}.search-mini{position:relative}
.search-mini input{width:164px;height:40px;padding:0 12px 0 35px;color:var(--text);background:rgba(255,255,255,.055);border:1px solid var(--line);border-radius:10px;transition:.25s}
.search-mini input::placeholder{color:#8195ad}.search-mini input:focus{width:190px;border-color:var(--cyan);box-shadow:0 0 0 4px rgba(110,231,255,.1);outline:0}
.search-icon{position:absolute;left:12px;top:7px;color:var(--muted);font-size:17px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:0 17px;border:1px solid transparent;border-radius:11px;font-size:14px;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s}
.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(1px)}.btn:focus-visible,.nav-links a:focus-visible,.footer-links a:focus-visible,.timeline-link:focus-visible{outline:3px solid rgba(110,231,255,.45);outline-offset:3px}
.btn-primary{color:#061321;background:var(--cyan);box-shadow:0 0 24px rgba(110,231,255,.24)}.btn-primary:hover{background:#a6f2ff;box-shadow:0 0 34px rgba(110,231,255,.42)}
.btn-secondary{color:var(--soft);background:rgba(255,255,255,.045);border-color:var(--line-strong)}.btn-secondary:hover{color:var(--text);background:rgba(110,231,255,.1);border-color:var(--cyan)}
.menu-toggle{display:none;background:none;color:var(--text);border:1px solid var(--line);border-radius:9px;width:40px;height:40px}
main{overflow:hidden}.hero{padding:86px 0 72px}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:64px;align-items:center}
.eyebrow,.tag{display:inline-flex;align-items:center;gap:7px;color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:.08em}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
h1,h2,h3,p{margin-top:0}.hero h1{max-width:690px;margin:18px 0 20px;font-size:clamp(38px,5.5vw,68px);line-height:1.14;letter-spacing:-.06em}
.hero h1 em{font-style:normal;color:var(--cyan)}.hero-copy{max-width:650px;color:var(--soft);font-size:18px;line-height:1.9}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.index-board{padding:24px;border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:linear-gradient(150deg,rgba(27,61,96,.82),rgba(10,24,43,.8));box-shadow:var(--shadow),var(--glow);transform:rotate(1deg)}
.board-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:18px;border-bottom:1px solid var(--line)}.board-title{font-weight:800}.live-dot{color:var(--green);font-size:12px}
.board-stat{display:flex;gap:14px;align-items:end;margin:26px 0}.board-stat strong{font-size:42px;line-height:1;color:var(--text)}.board-stat span{color:var(--muted);font-size:13px}
.index-row{display:flex;align-items:center;gap:13px;padding:16px 0;border-bottom:1px solid rgba(154,202,255,.1)}.index-row:last-child{border-bottom:0}
.row-mark{width:9px;height:9px;border-radius:50%;background:var(--cyan);box-shadow:0 0 14px var(--cyan);flex:none}.row-copy{flex:1}.row-copy strong{display:block;font-size:14px}.index-meta{color:var(--muted);font-size:12px}
.section{padding:88px 0}.section-alt{background:rgba(5,14,27,.45);border-block:1px solid rgba(154,202,255,.08)}
.section-head{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-bottom:34px}.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.25;letter-spacing:-.045em;margin:12px 0 0}.section-head p{max-width:520px;color:var(--muted);margin:0}
.issue-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:22px;align-items:stretch}.issue-intro,.timeline-card,.filter-panel,.deep-card,.faq-wrap,.cta-box{border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow)}
.issue-intro{padding:30px;border-radius:var(--radius-lg);background:linear-gradient(145deg,rgba(31,64,101,.66),rgba(13,27,47,.72))}
.issue-intro h3{font-size:25px;line-height:1.35}.issue-intro p{color:var(--muted)}.signal-list{display:grid;gap:12px;margin-top:28px}.signal{display:flex;gap:12px;color:var(--soft);font-size:14px}.signal b{color:var(--cyan);font-weight:500}
.timeline-card{padding:27px 30px;border-radius:var(--radius-lg)}.timeline{position:relative;margin-top:10px}.timeline::before{content:"";position:absolute;left:7px;top:10px;bottom:10px;width:1px;background:linear-gradient(var(--cyan),rgba(110,231,255,.05))}
.timeline-item{position:relative;padding:0 0 28px 34px}.timeline-item:last-child{padding-bottom:0}.timeline-item::before{content:"";position:absolute;left:2px;top:8px;width:11px;height:11px;border-radius:50%;background:var(--bg);border:2px solid var(--cyan);box-shadow:0 0 14px rgba(110,231,255,.65)}
.timeline-date{color:var(--cyan);font-size:12px;font-weight:800}.timeline-item h3{font-size:17px;margin:4px 0 4px}.timeline-item p{color:var(--muted);font-size:14px;margin-bottom:8px}.timeline-link{color:var(--soft);font-size:13px;border-bottom:1px solid var(--line-strong);padding-bottom:2px}
.filter-panel{padding:24px;border-radius:var(--radius-md);margin-bottom:22px}.filter-line{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.filter-label{color:var(--muted);font-size:13px;margin-right:4px}.tag{letter-spacing:0;padding:6px 11px;border:1px solid var(--line);border-radius:999px;color:var(--soft);background:rgba(255,255,255,.04);transition:.2s}.tag:hover,.tag.active{color:#061321;background:var(--cyan);border-color:var(--cyan)}
.deep-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:22px}.deep-card{border-radius:var(--radius-lg);padding:30px}.deep-card h3{font-size:25px;margin-bottom:12px}.deep-card p{color:var(--muted)}.route-list{display:grid;gap:0;margin-top:22px}.route-item{display:flex;justify-content:space-between;gap:18px;padding:16px 0;border-top:1px solid var(--line);color:var(--soft)}.route-item span{color:var(--muted);font-size:13px}.mini-note{padding:24px;border-radius:var(--radius-md);background:rgba(110,231,255,.06);border:1px solid rgba(110,231,255,.18)}.mini-note strong{display:block;font-size:32px;color:var(--cyan);line-height:1.2}.mini-note p{font-size:14px;margin:8px 0 0}
.faq-wrap{border-radius:var(--radius-lg);overflow:hidden}.faq-wrap details{border-bottom:1px solid var(--line);padding:0 25px}.faq-wrap details:last-child{border-bottom:0}.faq-wrap summary{list-style:none;cursor:pointer;padding:21px 28px 21px 0;font-weight:700;position:relative}.faq-wrap summary::-webkit-details-marker{display:none}.faq-wrap summary::after{content:"＋";position:absolute;right:0;color:var(--cyan);font-size:20px;transition:.2s}.faq-wrap details[open] summary::after{content:"－"}.faq-answer{color:var(--muted);font-size:14px;padding:0 0 20px;max-width:800px}
.cta-box{position:relative;overflow:hidden;border-radius:var(--radius-lg);padding:44px 48px;background:linear-gradient(125deg,rgba(27,62,101,.88),rgba(13,27,49,.85))}
.cta-box::after{content:"";position:absolute;width:260px;height:260px;right:-80px;top:-110px;border-radius:50%;border:1px solid rgba(110,231,255,.2);box-shadow:0 0 0 28px rgba(110,231,255,.03),0 0 0 56px rgba(110,231,255,.02)}
.cta-box h2{font-size:clamp(27px,4vw,42px);margin-bottom:10px}.cta-box p{color:var(--soft);max-width:630px}.cta-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
footer{padding:58px 0 26px;border-top:1px solid rgba(154,202,255,.1);background:rgba(3,9,18,.4)}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}.footer-brand p{max-width:330px;color:var(--muted);font-size:14px;margin-top:16px}.footer-title{font-size:13px;font-weight:800;color:var(--soft);margin-bottom:15px}.footer-links{display:grid;gap:9px;font-size:14px}.footer-links a:hover{color:var(--cyan)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:20px;border-top:1px solid var(--line);color:#74869d;font-size:12px}
@media(max-width:1024px){.nav-shell{gap:14px}.nav-tools .btn-secondary{display:none}.hero-grid{gap:34px}.deep-grid{grid-template-columns:1fr}.issue-layout{grid-template-columns:1fr}}
@media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.site-header{top:8px;padding-top:8px}.nav-shell{position:relative;flex-wrap:wrap;padding:10px 12px 10px 15px}.brand-text{font-size:16px}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;order:3;width:100%;margin:0;padding-top:8px;border-top:1px solid var(--line);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:11px 12px}.nav-tools{margin-left:0;order:2}.search-mini{display:none}.nav-tools .btn-primary{min-height:40px;padding-inline:13px}.hero{padding:64px 0 55px}.hero-grid{grid-template-columns:1fr}.hero h1{font-size:clamp(38px,11vw,56px)}.index-board{transform:none}.section{padding:64px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:15px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.cta-box{padding:32px 25px}}
@media(max-width:480px){.hero-copy{font-size:16px}.hero-actions,.cta-actions{display:grid;grid-template-columns:1fr}.hero-actions .btn,.cta-actions .btn{width:100%}.issue-intro,.timeline-card,.deep-card{padding:23px 20px}.filter-panel{padding:18px}.filter-line{align-items:flex-start}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:grid;gap:8px}.board-stat strong{font-size:34px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}