/* roulang page: index */
:root{
      --bg:#0a0f18;
      --bg-soft:#0f1626;
      --panel:#111a2d;
      --panel-2:#0e1524;
      --line:rgba(255,255,255,.08);
      --line-strong:rgba(255,255,255,.14);
      --text:#e9eefc;
      --muted:#9aa7c2;
      --muted-2:#7f8aa6;
      --primary:#4de1ff;
      --primary-2:#8a7dff;
      --accent:#ffb84d;
      --accent-2:#ff6b8b;
      --success:#55e39f;
      --shadow:0 20px 60px rgba(0,0,0,.35);
      --shadow-soft:0 10px 30px rgba(0,0,0,.22);
      --radius:20px;
      --radius-lg:28px;
      --radius-sm:14px;
      --container:1180px;
      --gap:24px;
      --gap-lg:36px;
      --gap-sm:14px;
      --transition:.25s ease;
      --header-h:84px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 20%, rgba(77,225,255,.10), transparent 22%),
        radial-gradient(circle at 85% 0%, rgba(138,125,255,.15), transparent 18%),
        radial-gradient(circle at 75% 85%, rgba(255,107,139,.08), transparent 16%),
        linear-gradient(180deg, #08101b 0%, #0a0f18 38%, #08101a 100%);
      min-height:100vh;
      line-height:1.7;
      letter-spacing:.2px;
      overflow-x:hidden;
    }
    img{max-width:100%;display:block}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    ::selection{background:rgba(77,225,255,.25);color:#fff}
    .skip-link{
      position:absolute;
      left:-9999px;
      top:0;
      z-index:999;
      background:#fff;
      color:#111;
      padding:10px 14px;
      border-radius:10px;
    }
    .skip-link:focus{left:16px;top:16px}
    .container{
      width:min(100% - 32px, var(--container));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(9,14,24,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .header-inner{
      min-height:var(--header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:14px;
      min-width:0;
    }
    .brand-mark{
      width:44px;
      height:44px;
      border-radius:14px;
      background:
        linear-gradient(145deg, rgba(77,225,255,.95), rgba(138,125,255,.95));
      box-shadow:0 12px 30px rgba(77,225,255,.22);
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:10px;
      border-radius:10px;
      border:1px solid rgba(255,255,255,.55);
      transform:skewX(-10deg);
    }
    .brand-mark::after{
      inset:17px 12px 12px 17px;
      border-color:rgba(255,255,255,.36);
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      gap:2px;
      min-width:0;
    }
    .brand-name{
      font-size:1rem;
      font-weight:800;
      letter-spacing:.5px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-sub{
      font-size:.82rem;
      color:var(--muted);
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      gap:20px;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .nav-links a{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      color:var(--muted);
      font-size:.95rem;
      border:1px solid transparent;
      transition:all var(--transition);
    }
    .nav-links a:hover,
    .nav-links a:focus-visible{
      color:var(--text);
      border-color:rgba(255,255,255,.08);
      background:rgba(255,255,255,.04);
      transform:translateY(-1px);
      outline:none;
    }
    .nav-links a.is-active{
      color:#09111b;
      background:linear-gradient(135deg, var(--primary), #86f4ff);
      box-shadow:0 10px 24px rgba(77,225,255,.18);
    }
    .nav-tools{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .quick-entry{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      border:1px solid rgba(77,225,255,.18);
      background:rgba(77,225,255,.08);
      color:var(--text);
      transition:all var(--transition);
      white-space:nowrap;
    }
    .quick-entry:hover,
    .quick-entry:focus-visible{
      background:rgba(77,225,255,.15);
      border-color:rgba(77,225,255,.35);
      transform:translateY(-1px);
      outline:none;
    }
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:14px;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.04);
      color:var(--text);
      cursor:pointer;
      align-items:center;
      justify-content:center;
      gap:5px;
      flex-direction:column;
      transition:all var(--transition);
    }
    .menu-toggle span{
      width:18px;
      height:2px;
      border-radius:99px;
      background:currentColor;
      display:block;
    }
    .menu-toggle:hover{transform:translateY(-1px);background:rgba(255,255,255,.08)}
    .hero{
      position:relative;
      padding:34px 0 22px;
    }
    .hero-shell{
      position:relative;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.08);
      border-radius:32px;
      background:
        linear-gradient(160deg, rgba(17,26,45,.92), rgba(11,16,28,.86)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
      isolation:isolate;
    }
    .hero-shell::before,
    .hero-shell::after{
      content:"";
      position:absolute;
      inset:auto;
      border-radius:999px;
      filter:blur(18px);
      pointer-events:none;
      z-index:-1;
    }
    .hero-shell::before{
      width:240px;
      height:240px;
      right:-40px;
      top:-40px;
      background:rgba(138,125,255,.25);
    }
    .hero-shell::after{
      width:220px;
      height:220px;
      left:-40px;
      bottom:-30px;
      background:rgba(77,225,255,.16);
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.08fr) minmax(340px,.92fr);
      gap:32px;
      padding:34px;
      align-items:center;
      position:relative;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 13px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      color:#dce7ff;
      border:1px solid rgba(255,255,255,.08);
      font-size:.84rem;
      letter-spacing:.3px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:99px;
      background:var(--success);
      box-shadow:0 0 0 4px rgba(85,227,159,.12);
    }
    .hero h1{
      margin:18px 0 14px;
      font-size:clamp(2.15rem, 5vw, 4.35rem);
      line-height:1.05;
      letter-spacing:-1px;
      text-wrap:balance;
    }
    .hero p{
      margin:0;
      max-width:62ch;
      color:var(--muted);
      font-size:1.03rem;
      line-height:1.85;
    }
    .hero-actions{
      margin-top:24px;
      display:flex;
      flex-wrap:wrap;
      gap:12px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      padding:13px 18px;
      border-radius:16px;
      border:1px solid transparent;
      font-weight:700;
      transition:all var(--transition);
      cursor:pointer;
      white-space:nowrap;
    }
    .btn:hover,
    .btn:focus-visible{
      transform:translateY(-1px);
      outline:none;
    }
    .btn-primary{
      background:linear-gradient(135deg, var(--primary), #91f7ff);
      color:#06101a;
      box-shadow:0 14px 30px rgba(77,225,255,.18);
    }
    .btn-primary:hover{box-shadow:0 16px 34px rgba(77,225,255,.24)}
    .btn-secondary{
      background:rgba(255,255,255,.04);
      border-color:rgba(255,255,255,.1);
      color:var(--text);
    }
    .btn-secondary:hover{
      background:rgba(255,255,255,.07);
      border-color:rgba(255,255,255,.18);
    }
    .hero-search{
      margin-top:18px;
      display:flex;
      gap:10px;
      max-width:620px;
      padding:10px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(6,10,18,.5);
      box-shadow:var(--shadow-soft);
    }
    .hero-search input{
      flex:1;
      min-width:0;
      border:none;
      outline:none;
      background:transparent;
      color:var(--text);
      padding:10px 12px;
      font-size:.98rem;
    }
    .hero-search input::placeholder{color:#7f8aa6}
    .hero-search button{
      border:none;
      padding:12px 16px;
      border-radius:14px;
      background:linear-gradient(135deg, var(--accent), #ffd577);
      color:#261806;
      font-weight:800;
      cursor:pointer;
      transition:all var(--transition);
    }
    .hero-search button:hover{transform:translateY(-1px);filter:brightness(1.03)}
    .hero-stats{
      margin-top:22px;
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
    }
    .stat{
      padding:14px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .stat strong{
      display:block;
      font-size:1.15rem;
      margin-bottom:4px;
    }
    .stat span{
      color:var(--muted);
      font-size:.9rem;
    }
    .hero-visual{
      position:relative;
      min-height:540px;
      border-radius:28px;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.08);
      background:
        linear-gradient(180deg, rgba(12,18,31,.16), rgba(12,18,31,.88)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow:var(--shadow-soft);
    }
    .hero-visual::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(135deg, rgba(77,225,255,.06), transparent 35%),
        linear-gradient(315deg, rgba(138,125,255,.12), transparent 40%);
      pointer-events:none;
    }
    .hero-visual-inner{
      position:absolute;
      inset:auto 18px 18px 18px;
      display:grid;
      gap:14px;
    }
    .visual-card{
      padding:16px;
      border-radius:20px;
      background:rgba(11,16,27,.82);
      backdrop-filter:blur(16px);
      border:1px solid rgba(255,255,255,.09);
      box-shadow:var(--shadow-soft);
    }
    .visual-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:12px;
    }
    .visual-top b{
      font-size:1rem;
    }
    .visual-tag{
      font-size:.78rem;
      color:#09111b;
      padding:6px 10px;
      border-radius:999px;
      background:linear-gradient(135deg, var(--primary), #d3fbff);
      font-weight:800;
    }
    .visual-thumb{
      display:grid;
      grid-template-columns:100px 1fr;
      gap:14px;
      align-items:center;
    }
    .visual-thumb img{
      width:100px;
      height:100px;
      object-fit:cover;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.08);
    }
    .visual-thumb p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
      line-height:1.7;
    }
    .visual-mini-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:10px;
    }
    .mini-pill{
      padding:12px 10px;
      border-radius:16px;
      text-align:center;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .mini-pill strong{
      display:block;
      font-size:1rem;
      margin-bottom:4px;
    }
    .mini-pill span{
      color:var(--muted);
      font-size:.82rem;
    }
    .signal-bar{
      margin-top:18px;
      display:grid;
      grid-template-columns:1.15fr .95fr .95fr 1fr;
      gap:12px;
    }
    .signal{
      padding:14px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(255,255,255,.08);
      display:flex;
      align-items:center;
      gap:12px;
      min-height:74px;
    }
    .signal i{
      width:42px;
      height:42px;
      border-radius:14px;
      background:linear-gradient(135deg, rgba(77,225,255,.18), rgba(138,125,255,.18));
      border:1px solid rgba(255,255,255,.08);
      flex:0 0 auto;
      position:relative;
    }
    .signal i::before{
      content:"";
      position:absolute;
      inset:12px;
      border-radius:999px;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
    }
    .signal b,
    .signal span{
      display:block;
    }
    .signal b{
      font-size:.95rem;
      margin-bottom:2px;
    }
    .signal span{
      color:var(--muted);
      font-size:.85rem;
    }
    .section{
      padding:34px 0 8px;
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:20px;
      margin-bottom:18px;
    }
    .section-head h2{
      margin:0;
      font-size:clamp(1.45rem, 2.2vw, 2rem);
      line-height:1.2;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      max-width:62ch;
    }
    .section-link{
      color:#bfefff;
      font-weight:700;
      display:inline-flex;
      align-items:center;
      gap:8px;
      transition:all var(--transition);
      white-space:nowrap;
    }
    .section-link:hover{color:#fff;transform:translateX(2px)}
    .grid-3{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:var(--gap);
    }
    .grid-4{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:var(--gap);
    }
    .card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg, rgba(20,28,45,.92), rgba(13,19,32,.96));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      min-height:100%;
    }
    .card:hover{
      transform:translateY(-4px);
      border-color:rgba(255,255,255,.14);
      box-shadow:0 18px 45px rgba(0,0,0,.3);
    }
    .card-media{
      position:relative;
      aspect-ratio:16/10;
      overflow:hidden;
      background:#0b1220;
    }
    .card-media img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .6s ease;
    }
    .card:hover .card-media img{transform:scale(1.05)}
    .card-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent 45%, rgba(7,11,18,.84) 100%);
    }
    .card-body{
      padding:18px;
    }
    .card-kicker{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:12px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      color:#dbe6ff;
      font-size:.76rem;
      line-height:1;
    }
    .badge.hot{
      background:rgba(255,184,77,.12);
      color:#ffd08a;
      border-color:rgba(255,184,77,.18);
    }
    .badge.info{
      background:rgba(77,225,255,.12);
      color:#a9f2ff;
      border-color:rgba(77,225,255,.18);
    }
    .card h3{
      margin:0 0 10px;
      font-size:1.12rem;
      line-height:1.35;
    }
    .card p{
      margin:0;
      color:var(--muted);
      font-size:.94rem;
      line-height:1.75;
    }
    .card-foot{
      margin-top:16px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
    }
    .meta{
      display:flex;
      flex-direction:column;
      gap:3px;
      color:var(--muted-2);
      font-size:.82rem;
    }
    .more{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#cff6ff;
      font-weight:700;
      transition:all var(--transition);
    }
    .more:hover{color:#fff;transform:translateX(2px)}
    .panel{
      border-radius:var(--radius-lg);
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(17,26,45,.92), rgba(11,16,27,.92));
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .panel-bg{
      position:relative;
      min-height:320px;
      background:
        linear-gradient(90deg, rgba(11,16,27,.9), rgba(11,16,27,.46)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
    }
    .panel-body{
      padding:24px;
      position:relative;
      z-index:1;
      max-width:680px;
    }
    .panel-body h3{
      margin:0 0 12px;
      font-size:1.5rem;
      line-height:1.3;
    }
    .panel-body p{
      margin:0 0 18px;
      color:var(--muted);
      max-width:58ch;
    }
    .timeline{
      display:grid;
      gap:12px;
      margin-top:18px;
    }
    .timeline-item{
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:14px 0;
      border-top:1px solid rgba(255,255,255,.07);
    }
    .timeline-item:first-child{border-top:none;padding-top:0}
    .timeline-num{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      color:#dff7ff;
      font-weight:800;
      flex:0 0 auto;
    }
    .timeline-item b{
      display:block;
      margin-bottom:4px;
      font-size:.98rem;
    }
    .timeline-item span{
      display:block;
      color:var(--muted);
      font-size:.92rem;
      line-height:1.7;
    }
    .live-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:var(--gap);
    }
    .live-board{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      min-height:100%;
      background:
        linear-gradient(180deg, rgba(11,16,27,.32), rgba(11,16,27,.9)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .live-board .inner{
      padding:26px;
      min-height:100%;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      gap:16px;
      background:linear-gradient(180deg, transparent 45%, rgba(7,11,18,.85) 100%);
    }
    .live-board h3{
      margin:0;
      font-size:1.45rem;
    }
    .live-board p{
      margin:0;
      color:#d9e4ff;
      max-width:52ch;
    }
    .live-list{
      display:grid;
      gap:14px;
    }
    .live-note{
      padding:18px;
      border-radius:22px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .live-note strong{
      display:block;
      margin-bottom:6px;
      font-size:1rem;
    }
    .live-note span{
      color:var(--muted);
      font-size:.92rem;
      line-height:1.7;
    }
    .chips{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:11px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      color:#dfe8ff;
      border:1px solid rgba(255,255,255,.08);
      transition:all var(--transition);
    }
    .chip:hover,
    .chip:focus-visible{
      background:rgba(77,225,255,.1);
      border-color:rgba(77,225,255,.2);
      transform:translateY(-1px);
      outline:none;
    }
    .side-note{
      padding:22px;
      border-radius:var(--radius-lg);
      background:linear-gradient(160deg, rgba(138,125,255,.13), rgba(11,16,27,.92));
      border:1px solid rgba(255,255,255,.08);
    }
    .side-note h3{
      margin:0 0 10px;
      font-size:1.18rem;
    }
    .side-note p{
      margin:0;
      color:var(--muted);
      line-height:1.8;
    }
    .faq{
      display:grid;
      gap:14px;
    }
    details.faq-item{
      border-radius:20px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.035);
      overflow:hidden;
      box-shadow:var(--shadow-soft);
    }
    details.faq-item[open]{
      background:rgba(255,255,255,.05);
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      font-weight:700;
      color:var(--text);
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"+";
      width:28px;
      height:28px;
      border-radius:999px;
      display:grid;
      place-items:center;
      background:rgba(255,255,255,.06);
      color:#dfe8ff;
      flex:0 0 auto;
      transition:transform var(--transition);
    }
    details[open] > summary::after{
      content:"–";
      transform:rotate(180deg);
    }
    .faq-content{
      padding:0 20px 18px;
      color:var(--muted);
      line-height:1.85;
    }
    .cta{
      padding:34px 0 10px;
    }
    .cta-box{
      position:relative;
      overflow:hidden;
      border-radius:32px;
      background:
        linear-gradient(90deg, rgba(8,12,20,.92), rgba(8,12,20,.68)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow);
    }
    .cta-inner{
      padding:30px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .cta-copy{
      max-width:62ch;
    }
    .cta-copy h2{
      margin:0 0 10px;
      font-size:clamp(1.55rem, 2.8vw, 2.2rem);
    }
    .cta-copy p{
      margin:0;
      color:#dbe6ff;
      line-height:1.85;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
    }
    .footer{
      margin-top:28px;
      padding:24px 0 34px;
      border-top:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, transparent, rgba(4,8,14,.24));
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .7fr .9fr;
      gap:var(--gap);
      padding-top:6px;
    }
    .footer-brand{
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .footer-brand strong{
      font-size:1.08rem;
    }
    .footer-brand p,
    .footer-col p,
    .footer-col a{
      color:var(--muted);
      font-size:.92rem;
      line-height:1.8;
    }
    .footer-col h4{
      margin:0 0 10px;
      font-size:1rem;
    }
    .footer-links{
      display:grid;
      gap:8px;
    }
    .footer-links a{
      display:inline-flex;
      align-items:center;
      gap:8px;
      transition:all var(--transition);
    }
    .footer-links a:hover{color:#fff;transform:translateX(2px)}
    .copyright{
      margin-top:20px;
      padding-top:16px;
      border-top:1px solid rgba(255,255,255,.06);
      color:#8391ab;
      font-size:.88rem;
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
      gap:10px;
    }
    .glow-line{
      position:absolute;
      inset:auto 0 0 0;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(77,225,255,.8), rgba(138,125,255,.8), transparent);
      opacity:.55;
    }
    .subtle-border{
      border:1px solid rgba(255,255,255,.08);
    }
    .center-note{
      display:grid;
      place-items:center;
      min-height:100%;
    }
    .tiny{
      font-size:.82rem;
      color:var(--muted-2);
    }

    @media (max-width: 1100px){
      .hero-grid,
      .live-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .signal-bar,
      .grid-4{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .grid-3{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .hero-visual{
        min-height:420px;
      }
      .section-head{
        align-items:flex-start;
        flex-direction:column;
      }
      .cta-inner{
        flex-direction:column;
        align-items:flex-start;
      }
      .cta-actions{
        justify-content:flex-start;
      }
    }
    @media (max-width: 860px){
      .nav-wrap{
        position:fixed;
        left:16px;
        right:16px;
        top:calc(var(--header-h) - 6px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:14px;
        border-radius:22px;
        background:rgba(9,14,24,.96);
        border:1px solid rgba(255,255,255,.08);
        box-shadow:var(--shadow);
      }
      .nav-wrap.is-open{display:flex}
      .nav-links{
        flex-direction:column;
        align-items:stretch;
      }
      .nav-links a{
        justify-content:center;
      }
      .nav-tools{
        justify-content:center;
      }
      .menu-toggle{
        display:inline-flex;
      }
      .hero-grid{
        padding:24px;
      }
      .hero-stats{
        grid-template-columns:1fr;
      }
      .signal-bar,
      .grid-3,
      .grid-4{
        grid-template-columns:1fr;
      }
      .visual-thumb{
        grid-template-columns:84px 1fr;
      }
      .visual-thumb img{
        width:84px;height:84px;
      }
    }
    @media (max-width: 640px){
      :root{
        --header-h:74px;
      }
      .header-inner{
        gap:10px;
      }
      .brand-sub{
        display:none;
      }
      .brand-name{
        font-size:.96rem;
      }
      .hero{
        padding-top:22px;
      }
      .hero-shell{
        border-radius:24px;
      }
      .hero-grid{
        gap:22px;
        padding:18px;
      }
      .hero h1{
        font-size:2rem;
      }
      .hero p{
        font-size:.96rem;
      }
      .hero-search{
        flex-direction:column;
        padding:8px;
      }
      .hero-search button{
        width:100%;
      }
      .hero-visual{
        min-height:380px;
        border-radius:22px;
      }
      .hero-visual-inner{
        inset:auto 12px 12px 12px;
      }
      .section{
        padding-top:28px;
      }
      .card-body,
      .panel-body,
      .cta-inner,
      .live-board .inner{
        padding:18px;
      }
      .card h3{
        font-size:1.05rem;
      }
      .faq-item summary{
        padding:16px;
        font-size:.96rem;
      }
      .faq-content{
        padding:0 16px 16px;
      }
      .copyright{
        flex-direction:column;
        align-items:flex-start;
      }
      .cta-box{
        border-radius:24px;
      }
      .visual-mini-grid{
        grid-template-columns:1fr;
      }
    }
    .focus-ring:focus-visible{
      outline:3px solid rgba(77,225,255,.35);
      outline-offset:3px;
    }

/* roulang page: category1 */
:root {
      --bg: #080c14;
      --bg-soft: #0d1422;
      --panel: #111a2b;
      --panel-2: #151f33;
      --panel-light: #f4f7fb;
      --text: #eef5ff;
      --text-dark: #132033;
      --muted: #94a3b8;
      --muted-dark: #5f6f86;
      --line: rgba(148, 163, 184, .22);
      --line-strong: rgba(74, 222, 255, .34);
      --primary: #36d9ff;
      --primary-2: #7c5cff;
      --accent: #ffcf4a;
      --danger: #ff5f7a;
      --success: #62e6a9;
      --radius-sm: 10px;
      --radius: 18px;
      --radius-lg: 28px;
      --shadow: 0 22px 70px rgba(0, 0, 0, .34);
      --shadow-soft: 0 14px 36px rgba(5, 12, 24, .22);
      --container: 1180px;
      --header-h: 74px;
      --ease: all .22s ease;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      min-height: 100vh;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 4%, rgba(54, 217, 255, .16), transparent 30%),
        radial-gradient(circle at 85% 9%, rgba(124, 92, 255, .18), transparent 28%),
        linear-gradient(180deg, #070b13 0%, #0b1020 44%, #090d16 100%);
      line-height: 1.72;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; }
    img { display: block; max-width: 100%; height: auto; }
    button, input { font: inherit; }
    button { cursor: pointer; border: 0; }
    .container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
    .focus-ring:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
      outline: 3px solid rgba(54, 217, 255, .45);
      outline-offset: 4px;
      border-radius: 12px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: var(--header-h);
      border-bottom: 1px solid rgba(148, 163, 184, .16);
      background: rgba(8, 12, 20, .84);
      backdrop-filter: blur(16px);
    }
    .nav-wrap {
      height: var(--header-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 900;
      letter-spacing: -.02em;
      color: #fff;
    }
    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      color: #07101e;
      font-weight: 950;
      background:
        linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 0 0 6px rgba(54, 217, 255, .08), 0 12px 28px rgba(54, 217, 255, .18);
      transform: skew(-7deg);
    }
    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.15;
      white-space: nowrap;
    }
    .brand-text span:first-child { font-size: 15px; }
    .brand-text span:last-child { font-size: 12px; color: var(--muted); font-weight: 650; margin-top: 3px; }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 6px;
      border: 1px solid rgba(148, 163, 184, .14);
      border-radius: 999px;
      background: rgba(255, 255, 255, .04);
    }
    .nav-links a {
      position: relative;
      padding: 9px 15px;
      border-radius: 999px;
      font-size: 14px;
      color: #cbd5e1;
      transition: var(--ease);
      white-space: nowrap;
    }
    .nav-links a:hover { color: #fff; background: rgba(255, 255, 255, .07); }
    .nav-links a.is-active {
      color: #07101e;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      font-weight: 850;
    }
    .nav-search {
      display: flex;
      align-items: center;
      gap: 8px;
      width: 230px;
      padding: 9px 12px;
      border: 1px solid rgba(148, 163, 184, .18);
      border-radius: 999px;
      background: rgba(255, 255, 255, .05);
      color: var(--muted);
    }
    .nav-search input {
      width: 100%;
      color: var(--text);
      background: transparent;
      border: 0;
      outline: 0;
      font-size: 13px;
    }
    .nav-search input::placeholder { color: #7f8da3; }

    .category-hero {
      position: relative;
      isolation: isolate;
      padding: 76px 0 42px;
      overflow: hidden;
    }
    .category-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -2;
      background:
        linear-gradient(90deg, rgba(8, 12, 20, .92), rgba(8, 12, 20, .60), rgba(8, 12, 20, .92)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      opacity: .9;
    }
    .category-hero::after {
      content: "";
      position: absolute;
      left: -8%;
      right: -8%;
      bottom: -1px;
      height: 74px;
      z-index: -1;
      background: linear-gradient(180deg, rgba(8, 12, 20, 0), var(--bg));
    }
    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(340px, .72fr);
      gap: 34px;
      align-items: end;
    }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border: 1px solid rgba(54, 217, 255, .28);
      border-radius: 999px;
      color: #bff5ff;
      background: rgba(54, 217, 255, .08);
      font-size: 13px;
      font-weight: 760;
    }
    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--success);
      box-shadow: 0 0 18px var(--success);
    }
    h1 {
      margin-top: 18px;
      max-width: 860px;
      font-size: clamp(36px, 5.5vw, 68px);
      line-height: 1.02;
      letter-spacing: -.055em;
      color: #fff;
    }
    .hero-lead {
      max-width: 780px;
      margin-top: 22px;
      color: #cbd5e1;
      font-size: 18px;
      line-height: 1.86;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 14px;
      font-weight: 850;
      transition: var(--ease);
      border: 1px solid transparent;
    }
    .btn-primary {
      color: #06101e;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 16px 34px rgba(54, 217, 255, .22);
    }
    .btn-primary:hover { transform: translateY(-2px); filter: brightness(1.05); }
    .btn-secondary {
      color: #e2e8f0;
      border-color: rgba(226, 232, 240, .22);
      background: rgba(255, 255, 255, .06);
    }
    .btn-secondary:hover { transform: translateY(-2px); border-color: rgba(54, 217, 255, .46); background: rgba(54, 217, 255, .1); }
    .hero-panel {
      border: 1px solid rgba(226, 232, 240, .17);
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, rgba(17, 26, 43, .9), rgba(11, 16, 28, .82));
      box-shadow: var(--shadow);
      padding: 18px;
      overflow: hidden;
    }
    .hero-cover {
      position: relative;
      min-height: 230px;
      border-radius: 22px;
      overflow: hidden;
      background: #111827;
    }
    .hero-cover img { width: 100%; height: 100%; min-height: 230px; object-fit: cover; }
    .hero-cover::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 20%, rgba(8, 12, 20, .86));
    }
    .cover-caption {
      position: absolute;
      z-index: 1;
      left: 18px;
      right: 18px;
      bottom: 16px;
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: end;
    }
    .cover-caption strong { font-size: 18px; color: #fff; }
    .cover-caption span { color: #b6c5d8; font-size: 13px; }
    .panel-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-top: 14px;
    }
    .stat-box {
      padding: 14px 10px;
      border: 1px solid rgba(148, 163, 184, .16);
      border-radius: 16px;
      background: rgba(255, 255, 255, .045);
      text-align: center;
    }
    .stat-box strong { display: block; color: #fff; font-size: 18px; line-height: 1.2; }
    .stat-box span { color: var(--muted); font-size: 12px; }

    main { padding: 34px 0 0; }
    .section { padding: 58px 0; }
    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 24px;
    }
    .section-kicker { color: var(--primary); font-size: 13px; font-weight: 900; letter-spacing: .08em; }
    h2 {
      margin-top: 6px;
      color: #fff;
      font-size: clamp(26px, 3vw, 38px);
      line-height: 1.18;
      letter-spacing: -.035em;
    }
    .section-desc { max-width: 620px; color: var(--muted); font-size: 15px; }
    .filter-strip {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      padding: 14px;
      border: 1px solid rgba(148, 163, 184, .16);
      border-radius: 22px;
      background: rgba(255, 255, 255, .04);
      box-shadow: var(--shadow-soft);
    }
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 8px 12px;
      border: 1px solid rgba(148, 163, 184, .18);
      border-radius: 999px;
      color: #d7e1ef;
      background: rgba(17, 26, 43, .78);
      font-size: 13px;
      font-weight: 760;
      transition: var(--ease);
    }
    .tag:hover, .tag.is-hot { color: #07101e; background: linear-gradient(135deg, var(--primary), var(--accent)); border-color: transparent; }
    .tag i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: .75; }

    .content-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 24px;
      align-items: start;
    }
    .topic-list { display: grid; gap: 18px; }
    .topic-card {
      display: grid;
      grid-template-columns: 240px minmax(0, 1fr);
      gap: 18px;
      padding: 16px;
      border: 1px solid rgba(148, 163, 184, .18);
      border-radius: var(--radius);
      background: linear-gradient(180deg, rgba(17, 26, 43, .92), rgba(13, 20, 34, .92));
      box-shadow: var(--shadow-soft);
      transition: var(--ease);
    }
    .topic-card:hover { transform: translateY(-3px); border-color: rgba(54, 217, 255, .38); box-shadow: 0 20px 44px rgba(0, 0, 0, .28); }
    .topic-thumb {
      position: relative;
      overflow: hidden;
      border-radius: 16px;
      min-height: 160px;
      background: #111827;
    }
    .topic-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
    .topic-card:hover .topic-thumb img { transform: scale(1.04); }
    .topic-thumb .badge {
      position: absolute;
      left: 12px;
      top: 12px;
    }
    .badge {
      display: inline-flex;
      align-items: center;
      padding: 5px 9px;
      border-radius: 999px;
      color: #06101e;
      background: var(--accent);
      font-size: 12px;
      font-weight: 900;
    }
    .badge.blue { background: var(--primary); }
    .badge.purple { color: #fff; background: var(--primary-2); }
    .topic-body { min-width: 0; display: flex; flex-direction: column; justify-content: space-between; gap: 14px; }
    .meta-row { display: flex; flex-wrap: wrap; gap: 8px; color: #8ea0b9; font-size: 12px; }
    .meta-row span { padding: 4px 8px; border-radius: 999px; background: rgba(148, 163, 184, .10); }
    .topic-card h3 { color: #fff; font-size: 22px; line-height: 1.32; letter-spacing: -.02em; }
    .topic-card p { color: #aebbd0; font-size: 14px; }
    .card-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #bff5ff;
      font-weight: 850;
      font-size: 14px;
      transition: var(--ease);
    }
    .card-link:hover { color: var(--accent); transform: translateX(3px); }

    .side-stack { display: grid; gap: 16px; position: sticky; top: calc(var(--header-h) + 18px); }
    .side-card {
      border: 1px solid rgba(148, 163, 184, .18);
      border-radius: var(--radius);
      background: rgba(17, 26, 43, .86);
      box-shadow: var(--shadow-soft);
      padding: 20px;
    }
    .side-card h3 { color: #fff; font-size: 18px; margin-bottom: 12px; }
    .score-mini { display: grid; gap: 10px; }
    .score-row {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 10px;
      padding: 12px;
      border-radius: 14px;
      background: rgba(255, 255, 255, .045);
      border: 1px solid rgba(148, 163, 184, .12);
    }
    .score-row strong { color: #fff; font-size: 14px; }
    .score-row span { color: var(--accent); font-weight: 900; }
    .side-note { color: var(--muted); font-size: 13px; margin-top: 10px; }
    .keyword-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .keyword-cloud a {
      padding: 7px 10px;
      border-radius: 999px;
      color: #dbeafe;
      background: rgba(54, 217, 255, .08);
      border: 1px solid rgba(54, 217, 255, .17);
      font-size: 12px;
      transition: var(--ease);
    }
    .keyword-cloud a:hover { color: #07101e; background: var(--primary); }

    .index-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }
    .index-card {
      min-height: 170px;
      padding: 20px;
      border: 1px solid rgba(148, 163, 184, .18);
      border-radius: var(--radius);
      background:
        linear-gradient(180deg, rgba(255,255,255,.065), rgba(255,255,255,.025)),
        var(--panel);
      transition: var(--ease);
      position: relative;
      overflow: hidden;
    }
    .index-card::after {
      content: "";
      position: absolute;
      width: 88px;
      height: 88px;
      right: -24px;
      top: -24px;
      border-radius: 50%;
      background: rgba(54, 217, 255, .12);
    }
    .index-card:hover { transform: translateY(-3px); border-color: rgba(255, 207, 74, .36); }
    .index-card b { color: var(--accent); font-size: 13px; }
    .index-card h3 { margin: 8px 0; color: #fff; font-size: 19px; }
    .index-card p { color: var(--muted); font-size: 13px; }

    .notice-band {
      border: 1px solid rgba(54, 217, 255, .22);
      border-radius: var(--radius-lg);
      background:
        linear-gradient(135deg, rgba(54, 217, 255, .12), rgba(124, 92, 255, .10)),
        rgba(17, 26, 43, .92);
      box-shadow: var(--shadow-soft);
      padding: 28px;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 22px;
      align-items: center;
    }
    .notice-band h2 { margin: 0; font-size: clamp(24px, 2.8vw, 34px); }
    .notice-band p { color: #b8c7da; max-width: 760px; margin-top: 8px; }
    .check-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
    .check-item {
      padding: 14px;
      border-radius: 16px;
      border: 1px solid rgba(148, 163, 184, .14);
      background: rgba(255, 255, 255, .04);
      color: #dce7f6;
      font-size: 14px;
    }
    .check-item::before { content: "✓"; color: var(--success); font-weight: 950; margin-right: 8px; }

    .faq-grid { display: grid; grid-template-columns: .88fr 1.12fr; gap: 24px; align-items: start; }
    .faq-intro {
      padding: 24px;
      border: 1px solid rgba(148, 163, 184, .18);
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, rgba(21, 31, 51, .95), rgba(13, 20, 34, .92));
    }
    .faq-intro p { color: var(--muted); margin-top: 12px; }
    .faq-list { display: grid; gap: 12px; }
    details {
      border: 1px solid rgba(148, 163, 184, .18);
      border-radius: 18px;
      background: rgba(17, 26, 43, .88);
      overflow: hidden;
      transition: var(--ease);
    }
    details[open] { border-color: rgba(54, 217, 255, .35); background: rgba(17, 26, 43, .98); }
    summary {
      list-style: none;
      cursor: pointer;
      padding: 18px 20px;
      color: #fff;
      font-weight: 850;
      display: flex;
      justify-content: space-between;
      gap: 16px;
    }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; color: var(--primary); font-size: 22px; line-height: 1; }
    details[open] summary::after { content: "−"; }
    details p { padding: 0 20px 20px; color: #aebbd0; font-size: 14px; }

    .cta {
      padding: 64px 0 76px;
    }
    .cta-box {
      position: relative;
      overflow: hidden;
      border-radius: 32px;
      border: 1px solid rgba(255, 207, 74, .22);
      background:
        linear-gradient(110deg, rgba(8, 12, 20, .96), rgba(13, 20, 34, .78)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      padding: 38px;
      box-shadow: var(--shadow);
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
    }
    .cta-box h2 { margin: 0; }
    .cta-box p { max-width: 720px; margin-top: 10px; color: #c4d1e3; }

    .footer {
      border-top: 1px solid rgba(148, 163, 184, .16);
      background: #070a11;
      padding: 44px 0 28px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .7fr 1fr;
      gap: 34px;
      padding-bottom: 28px;
    }
    .footer-brand strong { display: block; color: #fff; font-size: 18px; margin-bottom: 10px; }
    .footer p { color: #8f9db2; font-size: 14px; }
    .footer-col h4 { color: #e9f2ff; font-size: 15px; margin-bottom: 12px; }
    .footer-links { display: grid; gap: 8px; }
    .footer-links a { color: #9fb0c6; font-size: 14px; transition: var(--ease); }
    .footer-links a:hover { color: var(--primary); transform: translateX(3px); }
    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      padding-top: 20px;
      border-top: 1px solid rgba(148, 163, 184, .13);
      color: #78869c;
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .nav-search { display: none; }
      .hero-grid, .content-layout, .faq-grid, .cta-box { grid-template-columns: 1fr; }
      .side-stack { position: static; }
      .index-grid { grid-template-columns: repeat(2, 1fr); }
      .check-list { grid-template-columns: 1fr; }
      .notice-band { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      :root { --header-h: auto; }
      .site-header { position: relative; height: auto; }
      .nav-wrap { height: auto; padding: 14px 0; align-items: stretch; flex-direction: column; }
      .brand-text span:first-child { white-space: normal; }
      .nav-links { width: 100%; justify-content: space-between; overflow-x: auto; border-radius: 18px; }
      .nav-links a { flex: 1 0 auto; text-align: center; }
      .category-hero { padding: 46px 0 32px; }
      h1 { font-size: clamp(34px, 10vw, 48px); }
      .hero-lead { font-size: 16px; }
      .hero-actions, .cover-caption, .copyright { flex-direction: column; align-items: stretch; }
      .btn { width: 100%; }
      .panel-stats { grid-template-columns: 1fr; }
      .section { padding: 42px 0; }
      .section-head { display: block; }
      .section-desc { margin-top: 10px; }
      .topic-card { grid-template-columns: 1fr; }
      .topic-thumb { min-height: 210px; }
      .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    }
    @media (max-width: 520px) {
      .container { width: min(100% - 28px, var(--container)); }
      .brand-mark { width: 38px; height: 38px; }
      .brand-text span:first-child { font-size: 14px; }
      .category-hero { padding-top: 34px; }
      .hero-panel, .filter-strip, .notice-band, .cta-box { border-radius: 22px; padding: 18px; }
      .index-grid { grid-template-columns: 1fr; }
      .topic-card h3 { font-size: 20px; }
      .topic-thumb { min-height: 176px; }
      summary { padding: 16px; }
      details p { padding: 0 16px 16px; }
    }