/* roulang page: index */
:root{
      --bg:#eef3f1;
      --bg-soft:#f7faf9;
      --surface:#ffffff;
      --surface-2:#f2f7f6;
      --surface-3:#e8f1ef;
      --text:#102022;
      --muted:#607175;
      --line:#d8e3e0;
      --accent:#1e7f7a;
      --accent-2:#0f5f72;
      --accent-soft:rgba(30,127,122,.12);
      --accent-soft-2:rgba(15,95,114,.12);
      --success:#2f936f;
      --warning:#d99a3c;
      --shadow:0 18px 45px rgba(16,32,34,.08);
      --shadow-soft:0 10px 28px rgba(16,32,34,.06);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --gap:24px;
      --gap-sm:14px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(30,127,122,.10), transparent 32%),
        radial-gradient(circle at top right, rgba(15,95,114,.10), transparent 28%),
        linear-gradient(180deg, #f8fbfb 0%, var(--bg) 100%);
      font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:all .2s ease}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(30,127,122,.16);color:var(--text)}
    .skip-link{
      position:absolute;left:16px;top:-48px;z-index:100;
      padding:10px 14px;border-radius:999px;background:var(--text);color:#fff;
    }
    .skip-link:focus{top:14px}
    .site-shell{position:relative;min-height:100vh}
    .site-shell::before{
      content:"";
      position:fixed;inset:0;
      background-image:linear-gradient(rgba(16,32,34,.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(16,32,34,.03) 1px, transparent 1px);
      background-size:48px 48px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.10), transparent 70%);
      pointer-events:none;
    }
    .container{
      width:min(var(--max), calc(100% - 32px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(18px);
      background:rgba(247,250,249,.82);
      border-bottom:1px solid rgba(216,227,224,.9);
      box-shadow:0 6px 24px rgba(16,32,34,.04);
    }
    .header-inner{
      padding:16px 0;
    }
    .topbar{
      display:grid;
      grid-template-columns:auto minmax(0, 1fr) auto;
      gap:18px;
      align-items:center;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-mark{
      width:44px;height:44px;border-radius:16px;
      display:grid;place-items:center;
      background:linear-gradient(135deg, var(--accent), var(--accent-2));
      color:#fff;
      box-shadow:0 16px 32px rgba(15,95,114,.22);
      flex:0 0 auto;
    }
    .brand-mark i{font-size:1rem}
    .brand-copy{min-width:0}
    .brand-name{
      display:block;
      font-size:1.08rem;
      font-weight:800;
      letter-spacing:.02em;
      line-height:1.1;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-sub{
      display:block;
      margin-top:2px;
      font-size:.82rem;
      color:var(--muted);
    }
    .search-shell{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:0;
      padding:12px 16px;
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:999px;
      box-shadow:var(--shadow-soft);
      transition:box-shadow .2s ease, border-color .2s ease, transform .2s ease;
    }
    .search-shell:focus-within{
      border-color:rgba(30,127,122,.55);
      box-shadow:0 0 0 4px rgba(30,127,122,.10), var(--shadow-soft);
      transform:translateY(-1px);
    }
    .search-shell i{
      color:var(--accent);
      font-size:.98rem;
      flex:0 0 auto;
    }
    .search-shell input{
      border:0;
      outline:0;
      box-shadow:none;
      background:transparent;
      margin:0;
      padding:0;
      min-width:0;
      height:auto;
      color:var(--text);
    }
    .search-shell input::placeholder{color:#8a989a}
    .search-shell button{
      border:0;
      padding:10px 16px;
      border-radius:999px;
      background:linear-gradient(135deg, var(--accent), var(--accent-2));
      color:#fff;
      font-weight:700;
      cursor:pointer;
      transition:transform .2s ease, filter .2s ease, box-shadow .2s ease;
      box-shadow:0 12px 20px rgba(15,95,114,.18);
    }
    .search-shell button:hover,
    .search-shell button:focus{
      transform:translateY(-1px);
      filter:brightness(1.02);
      box-shadow:0 16px 28px rgba(15,95,114,.22);
    }
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:10px;
      flex-wrap:wrap;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      color:var(--muted);
      border:1px solid transparent;
      background:rgba(255,255,255,.55);
      box-shadow:0 1px 0 rgba(255,255,255,.75) inset;
      transition:transform .2s ease, border-color .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
      white-space:nowrap;
    }
    .nav-link:hover,
    .nav-link:focus,
    .nav-link.is-active{
      color:var(--text);
      background:var(--surface);
      border-color:var(--line);
      transform:translateY(-1px);
      box-shadow:var(--shadow-soft);
    }
    .nav-link i{font-size:.82rem;color:var(--accent)}
    .quick-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:14px;
      justify-content:flex-end;
    }
    .quick-tags .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 12px;
      border-radius:999px;
      font-size:.84rem;
      color:var(--muted);
      background:rgba(255,255,255,.72);
      border:1px solid var(--line);
    }
    .quick-tags .tag i{color:var(--accent);font-size:.76rem}
    .main{
      padding:28px 0 42px;
    }
    .section{
      margin-top:24px;
    }
    .hero{
      position:relative;
      padding:28px 0 12px;
    }
    .hero-panel{
      position:relative;
      overflow:hidden;
      border-radius:calc(var(--radius-xl) + 4px);
      background:
        linear-gradient(135deg, rgba(255,255,255,.98), rgba(244,249,248,.96)),
        radial-gradient(circle at top right, rgba(30,127,122,.10), transparent 40%);
      border:1px solid rgba(216,227,224,.95);
      box-shadow:var(--shadow);
      padding:30px;
    }
    .hero-panel::after{
      content:"";
      position:absolute;
      inset:auto -12% -18% auto;
      width:280px;height:280px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(30,127,122,.12), transparent 66%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid rgba(30,127,122,.18);
      background:rgba(30,127,122,.08);
      color:var(--accent-2);
      font-size:.85rem;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow i{font-size:.78rem}
    h1{
      margin:18px 0 14px;
      font-size:clamp(2rem, 4vw, 3.55rem);
      line-height:1.12;
      letter-spacing:-.03em;
      font-weight:900;
    }
    .hero p{
      margin:0;
      max-width:58ch;
      color:var(--muted);
      font-size:1.02rem;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      padding:13px 18px;
      border-radius:999px;
      font-weight:800;
      letter-spacing:.01em;
      border:1px solid transparent;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
      cursor:pointer;
      white-space:nowrap;
    }
    .btn:hover,
    .btn:focus{
      transform:translateY(-1px);
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--accent), var(--accent-2));
      box-shadow:0 16px 30px rgba(15,95,114,.20);
    }
    .btn-primary:hover,
    .btn-primary:focus{
      box-shadow:0 20px 36px rgba(15,95,114,.24);
    }
    .btn-secondary{
      color:var(--accent-2);
      background:var(--surface);
      border-color:rgba(15,95,114,.20);
      box-shadow:var(--shadow-soft);
    }
    .btn-secondary:hover,
    .btn-secondary:focus{
      border-color:rgba(15,95,114,.35);
      box-shadow:0 14px 24px rgba(16,32,34,.08);
    }
    .hero-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .metric{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:12px 14px;
      border-radius:18px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.7);
      box-shadow:0 8px 18px rgba(16,32,34,.04);
      min-width:150px;
    }
    .metric strong{
      display:block;
      font-size:1.04rem;
      line-height:1.2;
    }
    .metric span{
      display:block;
      color:var(--muted);
      font-size:.84rem;
      line-height:1.2;
    }
    .metric .dot{
      width:12px;height:12px;border-radius:50%;
      background:linear-gradient(135deg, var(--accent), var(--accent-2));
      box-shadow:0 0 0 4px rgba(30,127,122,.10);
      flex:0 0 auto;
    }
    .hero-side{
      display:grid;
      gap:16px;
      align-content:start;
    }
    .card{
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
    }
    .hero-card{
      padding:22px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.98), rgba(245,249,248,.96));
    }
    .hero-card h2,
    .section-title h2{
      margin:0;
      font-size:1.4rem;
      line-height:1.25;
      letter-spacing:-.02em;
      font-weight:850;
    }
    .hero-card p{
      margin:8px 0 0;
      color:var(--muted);
      font-size:.96rem;
    }
    .mini-list{
      margin:16px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .mini-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:var(--text);
      font-size:.94rem;
    }
    .mini-list i{
      margin-top:4px;
      color:var(--success);
      font-size:.82rem;
      flex:0 0 auto;
    }
    .panel-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
      margin-top:16px;
    }
    .panel-tile{
      padding:14px;
      border-radius:18px;
      background:linear-gradient(180deg, rgba(30,127,122,.07), rgba(15,95,114,.04));
      border:1px solid rgba(30,127,122,.15);
      min-height:96px;
    }
    .panel-tile strong{
      display:block;
      font-size:.98rem;
      margin-bottom:6px;
    }
    .panel-tile span{
      display:block;
      color:var(--muted);
      font-size:.85rem;
      line-height:1.55;
    }
    .panel-tile .action{
      display:inline-flex;
      align-items:center;
      gap:6px;
      margin-top:10px;
      color:var(--accent-2);
      font-weight:700;
      font-size:.84rem;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:16px;
      margin-bottom:18px;
    }
    .section-head p{
      margin:0;
      max-width:62ch;
      color:var(--muted);
      font-size:.96rem;
    }
    .eyebrow-sm{
      display:inline-flex;
      align-items:center;
      gap:6px;
      font-size:.8rem;
      font-weight:800;
      letter-spacing:.04em;
      text-transform:none;
      color:var(--accent-2);
      margin-bottom:8px;
    }
    .eyebrow-sm::before{
      content:"";
      width:20px;height:1px;
      background:rgba(15,95,114,.35);
    }
    .section-block{
      padding:24px;
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.72);
      border:1px solid rgba(216,227,224,.95);
      box-shadow:var(--shadow-soft);
    }
    .compare-wrap{
      overflow:hidden;
    }
    table.compare-table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:20px;
      background:var(--surface);
      box-shadow:0 12px 26px rgba(16,32,34,.05);
    }
    .compare-table thead th{
      background:linear-gradient(180deg, rgba(30,127,122,.08), rgba(15,95,114,.04));
      color:var(--text);
      font-size:.92rem;
      font-weight:800;
      text-align:left;
      padding:16px 18px;
      border-bottom:1px solid var(--line);
    }
    .compare-table tbody td{
      padding:16px 18px;
      color:var(--text);
      font-size:.94rem;
      border-bottom:1px solid rgba(216,227,224,.7);
      vertical-align:top;
    }
    .compare-table tbody tr:last-child td{border-bottom:0}
    .status{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      font-size:.82rem;
      font-weight:800;
      white-space:nowrap;
    }
    .status i{font-size:.72rem}
    .status.ok{background:rgba(47,147,111,.12);color:var(--success)}
    .status.hot{background:rgba(217,154,60,.14);color:var(--warning)}
    .status.new{background:rgba(30,127,122,.12);color:var(--accent)}
    .compare-mobile{
      display:none;
      gap:14px;
    }
    .compare-card{
      padding:18px;
      border-radius:20px;
      background:var(--surface);
      border:1px solid var(--line);
      box-shadow:0 10px 22px rgba(16,32,34,.05);
    }
    .compare-card header{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:12px;
    }
    .compare-card h3{
      margin:0;
      font-size:1.03rem;
      font-weight:850;
    }
    .compare-card ul{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:8px;
      color:var(--muted);
      font-size:.92rem;
    }
    .compare-card li{
      display:flex;
      gap:8px;
      align-items:flex-start;
    }
    .compare-card li i{
      margin-top:4px;
      color:var(--accent);
      font-size:.75rem;
      flex:0 0 auto;
    }
    .levels-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:16px;
    }
    .level-card{
      position:relative;
      overflow:hidden;
      padding:20px;
      border-radius:24px;
      background:linear-gradient(180deg, #ffffff, #f5faf8);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .level-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow);
      border-color:rgba(30,127,122,.25);
    }
    .level-card::after{
      content:"";
      position:absolute;
      inset:auto -24px -24px auto;
      width:110px;height:110px;
      background:radial-gradient(circle, rgba(30,127,122,.12), transparent 68%);
      pointer-events:none;
    }
    .level-index{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-width:42px;
      height:26px;
      padding:0 10px;
      border-radius:999px;
      background:rgba(30,127,122,.10);
      color:var(--accent-2);
      font-size:.78rem;
      font-weight:900;
      letter-spacing:.04em;
    }
    .level-card h3{
      margin:12px 0 8px;
      font-size:1.04rem;
      font-weight:850;
    }
    .level-card p{
      margin:0 0 12px;
      color:var(--muted);
      font-size:.92rem;
    }
    .bullet-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .bullet-list li{
      display:flex;
      align-items:flex-start;
      gap:9px;
      color:var(--text);
      font-size:.9rem;
    }
    .bullet-list i{
      margin-top:4px;
      color:var(--success);
      font-size:.74rem;
      flex:0 0 auto;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:14px;
    }
    .mini-tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 11px;
      border-radius:999px;
      font-size:.8rem;
      font-weight:700;
      color:var(--accent-2);
      background:rgba(15,95,114,.08);
      border:1px solid rgba(15,95,114,.14);
    }
    .preview-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:16px;
    }
    .preview-card{
      overflow:hidden;
      border-radius:24px;
      background:var(--surface);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      transition:transform .22s ease, box-shadow .22s ease;
    }
    .preview-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow);
    }
    .preview-cover{
      min-height:126px;
      padding:16px;
      background:
        linear-gradient(135deg, rgba(15,95,114,.92), rgba(30,127,122,.88)),
        radial-gradient(circle at 20% 20%, rgba(255,255,255,.25), transparent 36%);
      color:#fff;
      position:relative;
      overflow:hidden;
    }
    .preview-cover::after{
      content:"";
      position:absolute;
      inset:auto -26px -22px auto;
      width:120px;height:120px;
      border-radius:50%;
      background:rgba(255,255,255,.10);
    }
    .preview-label{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.14);
      color:#fff;
      font-size:.76rem;
      font-weight:800;
      letter-spacing:.04em;
      position:relative;
      z-index:1;
    }
    .preview-cover strong{
      display:block;
      margin-top:22px;
      font-size:1.1rem;
      line-height:1.35;
      position:relative;
      z-index:1;
    }
    .preview-body{
      padding:18px;
    }
    .preview-body p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
      min-height:4.5em;
    }
    .preview-actions{
      margin-top:14px;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
    }
    .link-btn{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:var(--accent-2);
      font-weight:800;
      font-size:.88rem;
    }
    .link-btn:hover,
    .link-btn:focus{
      color:var(--accent);
      transform:translateX(1px);
    }
    .outline-chip{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(30,127,122,.18);
      background:rgba(30,127,122,.06);
      color:var(--accent);
      font-size:.76rem;
      font-weight:800;
    }
    .news-grid{
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:16px;
      align-items:start;
    }
    .news-list{
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:24px;
      overflow:hidden;
      box-shadow:var(--shadow-soft);
    }
    .news-item{
      display:flex;
      justify-content:space-between;
      gap:14px;
      padding:16px 18px;
      border-bottom:1px solid rgba(216,227,224,.72);
      transition:background .2s ease;
    }
    .news-item:hover{background:rgba(30,127,122,.04)}
    .news-item:last-child{border-bottom:0}
    .news-item strong{
      display:block;
      margin-bottom:6px;
      font-size:.98rem;
      font-weight:800;
    }
    .news-item p{
      margin:0;
      color:var(--muted);
      font-size:.9rem;
    }
    .news-item .arrow{
      color:var(--accent);
      align-self:center;
      font-size:.88rem;
      flex:0 0 auto;
    }
    .news-side{
      padding:22px;
      border-radius:24px;
      background:linear-gradient(180deg, rgba(15,95,114,.95), rgba(30,127,122,.92));
      color:#fff;
      box-shadow:0 18px 40px rgba(15,95,114,.20);
      position:relative;
      overflow:hidden;
    }
    .news-side::after{
      content:"";
      position:absolute;
      inset:auto -26px -28px auto;
      width:180px;height:180px;
      border-radius:50%;
      background:rgba(255,255,255,.08);
    }
    .news-side .eyebrow-sm,
    .news-side .eyebrow-sm::before{color:rgba(255,255,255,.92)}
    .news-side .eyebrow-sm::before{background:rgba(255,255,255,.45)}
    .news-side h3{
      margin:0;
      font-size:1.22rem;
      font-weight:850;
      line-height:1.3;
      position:relative;
      z-index:1;
    }
    .news-side p{
      margin:10px 0 0;
      color:rgba(255,255,255,.88);
      font-size:.93rem;
      position:relative;
      z-index:1;
    }
    .news-side .side-badges{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:16px;
      position:relative;
      z-index:1;
    }
    .side-badges .mini-tag{
      background:rgba(255,255,255,.14);
      border-color:rgba(255,255,255,.18);
      color:#fff;
    }
    .calendar-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:16px;
    }
    .calendar-card{
      padding:20px;
      border-radius:24px;
      background:linear-gradient(180deg, #ffffff, #f5faf8);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .calendar-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-bottom:12px;
    }
    .calendar-top strong{
      font-size:1rem;
      font-weight:850;
    }
    .calendar-top span{
      display:inline-flex;
      align-items:center;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(30,127,122,.10);
      color:var(--accent-2);
      font-size:.76rem;
      font-weight:800;
    }
    .calendar-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }
    .entry-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:14px;
    }
    .entry-tile{
      display:flex;
      flex-direction:column;
      gap:12px;
      align-items:flex-start;
      padding:18px;
      border-radius:22px;
      background:var(--surface);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      min-height:170px;
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .entry-tile:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow);
      border-color:rgba(30,127,122,.22);
    }
    .entry-icon{
      width:48px;height:48px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(30,127,122,.15), rgba(15,95,114,.10));
      color:var(--accent-2);
      font-size:1.1rem;
    }
    .entry-tile strong{
      font-size:1rem;
      font-weight:850;
    }
    .entry-tile p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
      flex:1 1 auto;
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    details.faq{
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:20px;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    details.faq[open]{
      border-color:rgba(30,127,122,.22);
      box-shadow:var(--shadow);
    }
    details.faq summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      font-weight:850;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      outline:none;
    }
    details.faq summary::-webkit-details-marker{display:none}
    details.faq summary span{
      display:inline-flex;
      align-items:center;
      gap:10px;
    }
    details.faq summary i{
      color:var(--accent);
      transition:transform .2s ease;
      flex:0 0 auto;
    }
    details.faq[open] summary i{transform:rotate(180deg)}
    details.faq .answer{
      padding:0 20px 18px;
      color:var(--muted);
      font-size:.94rem;
    }
    .cta-band{
      position:relative;
      overflow:hidden;
      border-radius:32px;
      background:linear-gradient(135deg, #12353f 0%, #0f5f72 54%, #1e7f7a 100%);
      color:#fff;
      box-shadow:0 22px 48px rgba(15,95,114,.24);
    }
    .cta-band::before,
    .cta-band::after{
      content:"";
      position:absolute;
      border-radius:50%;
      background:rgba(255,255,255,.08);
      pointer-events:none;
    }
    .cta-band::before{
      width:220px;height:220px;
      top:-110px;right:-70px;
    }
    .cta-band::after{
      width:160px;height:160px;
      bottom:-76px;left:-46px;
    }
    .cta-inner{
      position:relative;
      z-index:1;
      padding:30px;
    }
    .cta-inner .eyebrow-sm{
      color:rgba(255,255,255,.92);
    }
    .cta-inner .eyebrow-sm::before{
      background:rgba(255,255,255,.45);
    }
    .cta-inner h2{
      margin:10px 0 12px;
      font-size:clamp(1.55rem, 3vw, 2.3rem);
      line-height:1.2;
      font-weight:900;
    }
    .cta-inner p{
      margin:0;
      max-width:64ch;
      color:rgba(255,255,255,.88);
      font-size:.96rem;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:22px;
    }
    .cta-band .btn-primary{
      background:#fff;
      color:var(--accent-2);
      box-shadow:none;
    }
    .cta-band .btn-primary:hover,
    .cta-band .btn-primary:focus{
      color:var(--accent);
      box-shadow:0 10px 24px rgba(255,255,255,.14);
    }
    .cta-band .btn-secondary{
      background:transparent;
      color:#fff;
      border-color:rgba(255,255,255,.25);
      box-shadow:none;
    }
    .cta-band .btn-secondary:hover,
    .cta-band .btn-secondary:focus{
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.38);
    }
    .cta-notes{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .cta-note{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      color:#fff;
      font-size:.84rem;
      border:1px solid rgba(255,255,255,.16);
    }
    .site-footer{
      margin-top:26px;
      padding:30px 0 40px;
      color:var(--muted);
    }
    .footer-panel{
      padding:24px;
      border-radius:28px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(216,227,224,.95);
      box-shadow:var(--shadow-soft);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:18px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{width:40px;height:40px;border-radius:14px}
    .footer-brand strong{
      display:block;
      color:var(--text);
      font-size:1rem;
      font-weight:900;
    }
    .footer-brand span{
      display:block;
      font-size:.84rem;
      color:var(--muted);
    }
    .footer-panel p{
      margin:0;
      font-size:.92rem;
    }
    .footer-links{
      display:grid;
      gap:10px;
      justify-items:start;
    }
    .footer-links a{
      color:var(--muted);
      font-size:.92rem;
    }
    .footer-links a:hover,
    .footer-links a:focus{
      color:var(--accent-2);
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      margin-top:18px;
      padding-top:16px;
      border-top:1px solid rgba(216,227,224,.8);
      font-size:.86rem;
    }
    .footer-bottom a{color:var(--accent-2)}
    .focus-ring:focus{
      outline:3px solid rgba(30,127,122,.22);
      outline-offset:2px;
    }
    .desktop-only{display:block}
    .mobile-only{display:none}
    .section-id{scroll-margin-top:110px}
    @media screen and (max-width: 1024px){
      .topbar{
        grid-template-columns:1fr;
      }
      .nav-links{
        justify-content:flex-start;
      }
      .quick-tags{
        justify-content:flex-start;
      }
      .hero-panel{
        padding:24px;
      }
      .levels-grid,
      .preview-grid,
      .entry-grid{
        grid-template-columns:repeat(2, minmax(0, 1fr));
      }
      .news-grid,
      .calendar-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
    }
    @media screen and (max-width: 768px){
      .main{padding-top:18px}
      .hero-panel{padding:20px;border-radius:24px}
      .section-block{padding:18px;border-radius:22px}
      .section-head{
        align-items:flex-start;
        flex-direction:column;
      }
      .panel-grid,
      .levels-grid,
      .preview-grid,
      .entry-grid,
      .calendar-grid{
        grid-template-columns:1fr;
      }
      .hero .grid-x > .cell.large-6{
        width:100%;
      }
      .hero-meta{gap:8px}
      .metric{width:100%;min-width:0}
      .desktop-only{display:none}
      .mobile-only{display:grid}
      .compare-mobile{display:grid}
      .compare-wrap table{display:none}
      .nav-links{
        overflow-x:auto;
        padding-bottom:2px;
        -webkit-overflow-scrolling:touch;
        flex-wrap:nowrap;
      }
      .nav-links::-webkit-scrollbar{height:0}
      .quick-tags{
        overflow-x:auto;
        flex-wrap:nowrap;
        padding-bottom:2px;
      }
      .quick-tags::-webkit-scrollbar{height:0}
      .cta-inner{padding:24px}
    }
    @media screen and (max-width: 520px){
      .container{width:min(var(--max), calc(100% - 22px))}
      .header-inner{padding:12px 0}
      .brand-mark{width:40px;height:40px;border-radius:14px}
      .brand-name{font-size:.98rem}
      .brand-sub{font-size:.76rem}
      .search-shell{
        padding:10px 12px;
        gap:8px;
      }
      .search-shell button{
        padding:9px 12px;
      }
      h1{font-size:1.8rem}
      .hero p{font-size:.95rem}
      .hero-actions .btn,
      .cta-actions .btn{
        width:100%;
      }
      .card,
      .level-card,
      .preview-card,
      .news-list,
      .news-side,
      .calendar-card,
      .entry-tile,
      details.faq,
      .footer-panel{
        border-radius:20px;
      }
      .footer-bottom{
        flex-direction:column;
        align-items:flex-start;
      }
      details.faq summary{
        padding:16px 18px;
      }
      .answer{
        padding-left:18px;
        padding-right:18px;
      }
    }

/* roulang page: category2 */
:root{
      --bg:#eef3f2;
      --bg-soft:#f7faf9;
      --surface:#ffffff;
      --surface-2:#f2f6f5;
      --line:#d9e2df;
      --line-strong:#c7d4d0;
      --text:#17302d;
      --muted:#5c7470;
      --muted-2:#78918d;
      --brand:#0f766e;
      --brand-2:#155e75;
      --brand-3:#2a9d8f;
      --accent:#d8a81f;
      --success:#15803d;
      --shadow:0 20px 45px rgba(18, 34, 31, .08);
      --shadow-soft:0 10px 25px rgba(18, 34, 31, .06);
      --radius:20px;
      --radius-sm:14px;
      --radius-xs:10px;
      --space:clamp(18px, 2vw, 28px);
      --container:1180px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(15,118,110,.07), transparent 28%),
        radial-gradient(circle at right top, rgba(21,94,117,.07), transparent 25%),
        linear-gradient(180deg, #f8fbfa 0%, #eef3f2 100%);
      line-height:1.72;
      letter-spacing:.01em;
    }
    a{color:inherit;text-decoration:none;transition:.22s ease}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    ::selection{background:rgba(15,118,110,.18)}
    .focus-ring:focus-visible,
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    summary:focus-visible{
      outline:3px solid rgba(15,118,110,.28);
      outline-offset:3px;
    }

    .container{
      width:min(var(--container), calc(100% - 32px));
      margin-inline:auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:30;
      backdrop-filter:saturate(160%) blur(14px);
      background:rgba(247,250,249,.84);
      border-bottom:1px solid rgba(217,226,223,.85);
    }
    .header-inner{padding:14px 0 16px}
    .topbar{
      display:grid;
      grid-template-columns:auto minmax(280px, 1fr) auto;
      align-items:center;
      gap:16px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-mark{
      width:46px;height:46px;border-radius:16px;
      display:grid;place-items:center;
      color:#fff;
      background:linear-gradient(145deg, var(--brand), var(--brand-2));
      box-shadow:0 12px 24px rgba(15,118,110,.22);
      flex:0 0 auto;
    }
    .brand-mark i{font-size:1rem}
    .brand-copy{display:flex;flex-direction:column;line-height:1.2;min-width:0}
    .brand-name{
      font-weight:800;
      font-size:1.03rem;
      letter-spacing:.02em;
      white-space:nowrap;
    }
    .brand-sub{
      color:var(--muted);
      font-size:.88rem;
      margin-top:4px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }

    .search-shell{
      display:flex;
      align-items:center;
      gap:10px;
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:999px;
      padding:10px 12px 10px 16px;
      box-shadow:var(--shadow-soft);
      min-width:0;
    }
    .search-shell i{color:var(--muted-2)}
    .search-shell input{
      border:0;
      background:transparent;
      min-width:0;
      flex:1;
      color:var(--text);
      padding:0;
      box-shadow:none;
      margin:0;
    }
    .search-shell input::placeholder{color:#8ba09c}
    .search-shell button{
      border:0;
      border-radius:999px;
      padding:.72rem 1.05rem;
      color:#fff;
      background:linear-gradient(145deg, var(--brand), var(--brand-2));
      box-shadow:0 10px 18px rgba(15,118,110,.16);
      transition:.22s ease;
      cursor:pointer;
    }
    .search-shell button:hover{transform:translateY(-1px);filter:brightness(1.03)}
    .search-shell button:active{transform:translateY(0)}

    .nav-links{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:8px;
      flex-wrap:wrap;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:.82rem 1rem;
      border-radius:999px;
      color:var(--muted);
      border:1px solid transparent;
      background:transparent;
      font-weight:600;
      white-space:nowrap;
    }
    .nav-link i{font-size:.95rem}
    .nav-link:hover{
      color:var(--text);
      background:rgba(255,255,255,.74);
      border-color:var(--line);
      box-shadow:0 10px 18px rgba(18,34,31,.05);
    }
    .nav-link.is-active{
      color:var(--brand);
      background:rgba(15,118,110,.08);
      border-color:rgba(15,118,110,.16);
    }

    .quick-tags{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      margin-top:14px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:.52rem .78rem;
      border-radius:999px;
      color:var(--muted);
      background:rgba(255,255,255,.72);
      border:1px solid rgba(217,226,223,.95);
      box-shadow:0 8px 18px rgba(18,34,31,.04);
      font-size:.92rem;
    }
    .tag i{color:var(--brand)}

    .hero{
      padding:34px 0 10px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);
      gap:22px;
      align-items:stretch;
    }
    .hero-main{
      background:
        linear-gradient(180deg, rgba(255,255,255,.96), rgba(247,250,249,.92));
      border:1px solid rgba(217,226,223,.95);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      padding:clamp(24px, 3vw, 38px);
      position:relative;
      overflow:hidden;
    }
    .hero-main:before{
      content:"";
      position:absolute;
      inset:auto -20% -30% auto;
      width:300px;height:300px;
      background:radial-gradient(circle, rgba(15,118,110,.12), transparent 62%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:.46rem .78rem;
      border-radius:999px;
      color:var(--brand);
      background:rgba(15,118,110,.08);
      border:1px solid rgba(15,118,110,.16);
      font-size:.92rem;
      font-weight:700;
      margin-bottom:14px;
    }
    .hero h1{
      margin:0 0 14px;
      font-size:clamp(2rem, 4vw, 3.5rem);
      line-height:1.12;
      letter-spacing:.01em;
    }
    .hero-lead{
      margin:0;
      color:var(--muted);
      font-size:1.04rem;
      max-width:56ch;
    }

    .hero-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-top:24px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border-radius:999px;
      padding:.92rem 1.2rem;
      border:1px solid transparent;
      font-weight:700;
      transition:.22s ease;
      cursor:pointer;
      text-decoration:none;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(145deg, var(--brand), var(--brand-2));
      box-shadow:0 14px 24px rgba(15,118,110,.18);
    }
    .btn-primary:hover{transform:translateY(-1px);filter:brightness(1.04)}
    .btn-secondary{
      color:var(--brand);
      background:rgba(15,118,110,.07);
      border-color:rgba(15,118,110,.16);
    }
    .btn-secondary:hover{
      background:rgba(15,118,110,.11);
      transform:translateY(-1px);
    }

    .hero-points{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:12px;
      margin-top:24px;
    }
    .mini-card{
      background:rgba(255,255,255,.78);
      border:1px solid rgba(217,226,223,.95);
      border-radius:18px;
      padding:14px;
      box-shadow:0 10px 18px rgba(18,34,31,.04);
    }
    .mini-card strong{
      display:block;
      font-size:1.15rem;
      color:var(--text);
    }
    .mini-card span{
      display:block;
      margin-top:4px;
      color:var(--muted);
      font-size:.92rem;
    }

    .hero-aside{
      display:grid;
      gap:16px;
    }
    .panel{
      background:rgba(255,255,255,.94);
      border:1px solid rgba(217,226,223,.95);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .panel-head{
      padding:18px 18px 0;
    }
    .panel-title{
      margin:0;
      font-size:1.08rem;
      font-weight:800;
    }
    .panel-sub{
      color:var(--muted);
      margin:.42rem 0 0;
      font-size:.94rem;
    }
    .summary-grid{
      padding:18px;
      display:grid;
      gap:12px;
    }
    .summary-item{
      display:flex;
      justify-content:space-between;
      gap:14px;
      align-items:flex-start;
      padding:14px;
      border-radius:16px;
      background:var(--surface-2);
      border:1px solid var(--line);
    }
    .summary-item strong{display:block;font-size:1rem}
    .summary-item span{color:var(--muted);font-size:.92rem}
    .summary-badge{
      flex:0 0 auto;
      padding:.35rem .65rem;
      border-radius:999px;
      background:rgba(21,94,117,.08);
      color:var(--brand-2);
      font-weight:700;
      font-size:.86rem;
    }
    .matrix{
      padding:0 18px 18px;
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:10px;
    }
    .matrix a{
      min-height:84px;
      border:1px solid var(--line);
      background:linear-gradient(180deg, #fff, #f7fbfa);
      border-radius:16px;
      padding:14px 12px;
      display:flex;
      flex-direction:column;
      gap:8px;
      justify-content:space-between;
      box-shadow:0 8px 14px rgba(18,34,31,.04);
    }
    .matrix a:hover{
      transform:translateY(-2px);
      border-color:rgba(15,118,110,.22);
      box-shadow:0 14px 22px rgba(18,34,31,.08);
    }
    .matrix .small{
      color:var(--muted);
      font-size:.86rem;
      line-height:1.4;
    }
    .matrix .label{
      display:inline-flex;
      align-self:flex-start;
      padding:.24rem .5rem;
      border-radius:999px;
      background:rgba(15,118,110,.08);
      color:var(--brand);
      font-size:.78rem;
      font-weight:700;
    }

    main{
      padding:18px 0 50px;
    }
    .section{
      margin-top:22px;
    }
    .section-card{
      background:rgba(255,255,255,.93);
      border:1px solid rgba(217,226,223,.95);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .section-head{
      padding:22px 22px 0;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--brand);
      font-weight:800;
      font-size:.92rem;
      margin-bottom:10px;
      text-transform:none;
    }
    .section h2{
      margin:0;
      font-size:1.55rem;
      line-height:1.25;
    }
    .section-desc{
      margin:10px 0 0;
      color:var(--muted);
      max-width:72ch;
    }

    .comparison-wrap{padding:20px 22px 24px}
    .comparison-table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:18px;
      background:#fff;
    }
    .comparison-table th,
    .comparison-table td{
      padding:16px 14px;
      border-bottom:1px solid var(--line);
      vertical-align:top;
      text-align:left;
      font-size:.96rem;
    }
    .comparison-table th{
      background:#f4f8f7;
      color:#28433f;
      font-weight:800;
    }
    .comparison-table tr:last-child td{border-bottom:0}
    .comparison-table .state{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:.3rem .56rem;
      border-radius:999px;
      background:rgba(21,128,61,.08);
      color:var(--success);
      font-size:.84rem;
      font-weight:700;
      margin-top:6px;
    }

    .levels-grid{
      padding:20px 22px 24px;
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:14px;
    }
    .level-card{
      background:linear-gradient(180deg, #fff, #f8fbfa);
      border:1px solid var(--line);
      border-radius:18px;
      padding:18px;
      box-shadow:0 10px 18px rgba(18,34,31,.04);
      position:relative;
      overflow:hidden;
    }
    .level-card:before{
      content:"";
      position:absolute;
      right:-20px;top:-20px;
      width:92px;height:92px;
      background:radial-gradient(circle, rgba(15,118,110,.12), transparent 65%);
      pointer-events:none;
    }
    .level-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-bottom:14px;
    }
    .level-name{
      font-weight:800;
      font-size:1.08rem;
    }
    .level-tag{
      padding:.28rem .56rem;
      border-radius:999px;
      background:rgba(15,118,110,.08);
      color:var(--brand);
      font-size:.8rem;
      font-weight:700;
      white-space:nowrap;
    }
    .level-card p{
      margin:0;
      color:var(--muted);
      font-size:.94rem;
    }
    .level-list{
      margin:14px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:8px;
    }
    .level-list li{
      display:flex;
      gap:8px;
      align-items:flex-start;
      color:#35524d;
      font-size:.92rem;
    }
    .level-list i{
      color:var(--brand);
      margin-top:.28rem;
      flex:0 0 auto;
    }

    .preview-grid{
      padding:20px 22px 24px;
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:14px;
    }
    .preview-card{
      border:1px solid var(--line);
      border-radius:18px;
      background:#fff;
      overflow:hidden;
      box-shadow:0 10px 18px rgba(18,34,31,.04);
      display:flex;
      flex-direction:column;
      min-height:100%;
    }
    .preview-thumb{
      min-height:132px;
      padding:16px;
      background:
        linear-gradient(145deg, rgba(15,118,110,.12), rgba(21,94,117,.06)),
        linear-gradient(180deg, #eef5f4, #f9fbfb);
      position:relative;
      border-bottom:1px solid var(--line);
    }
    .preview-thumb .signal{
      position:absolute;
      inset:auto 16px 16px auto;
      padding:.34rem .58rem;
      border-radius:999px;
      background:rgba(255,255,255,.88);
      border:1px solid rgba(217,226,223,.95);
      color:var(--brand-2);
      font-weight:700;
      font-size:.8rem;
    }
    .preview-thumb .chip{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:.3rem .5rem;
      border-radius:999px;
      background:rgba(255,255,255,.88);
      color:#35524d;
      font-size:.8rem;
      margin-right:6px;
      margin-bottom:6px;
      border:1px solid rgba(217,226,223,.9);
    }
    .preview-body{
      padding:16px;
      display:flex;
      flex-direction:column;
      gap:10px;
      flex:1;
    }
    .preview-body h3{
      margin:0;
      font-size:1.02rem;
      line-height:1.34;
    }
    .preview-body p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
    }
    .preview-actions{
      margin-top:auto;
      display:flex;
      gap:10px;
      flex-wrap:wrap;
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--brand);
      font-weight:700;
    }

    .faq-wrap{
      padding:20px 22px 24px;
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:18px;
      background:#fff;
      overflow:hidden;
      box-shadow:0 10px 18px rgba(18,34,31,.04);
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:18px 18px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      font-weight:700;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary span{
      display:inline-flex;
      align-items:center;
      gap:10px;
    }
    .faq-item summary i{color:var(--brand)}
    .faq-item p{
      margin:0;
      padding:0 18px 18px 46px;
      color:var(--muted);
    }

    .cta-box{
      padding:22px;
      background:
        linear-gradient(135deg, rgba(15,118,110,.96), rgba(21,94,117,.96));
      color:#fff;
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .cta-box:after{
      content:"";
      position:absolute;
      width:280px;height:280px;
      right:-120px;top:-120px;
      background:radial-gradient(circle, rgba(255,255,255,.16), transparent 65%);
      pointer-events:none;
    }
    .cta-grid{
      display:grid;
      grid-template-columns:minmax(0,1.2fr) minmax(260px,.8fr);
      gap:18px;
      align-items:center;
    }
    .cta-box h2{
      margin:0 0 12px;
      font-size:1.65rem;
      line-height:1.25;
    }
    .cta-box p{
      margin:0;
      color:rgba(255,255,255,.86);
      max-width:62ch;
    }
    .cta-actions{
      display:flex;
      flex-direction:column;
      align-items:flex-start;
      gap:12px;
    }
    .cta-actions .btn{
      box-shadow:none;
    }
    .btn-light{
      color:var(--brand-2);
      background:#fff;
      border-color:#fff;
    }
    .btn-light:hover{transform:translateY(-1px);filter:brightness(.98)}
    .cta-note{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      color:rgba(255,255,255,.88);
      font-size:.92rem;
    }
    .cta-note span{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:.42rem .62rem;
      border-radius:999px;
      background:rgba(255,255,255,.14);
      border:1px solid rgba(255,255,255,.14);
    }

    .site-footer{
      padding:16px 0 28px;
    }
    .footer-panel{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(217,226,223,.95);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:20px;
      padding:24px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:12px;
    }
    .footer-brand strong{display:block;font-size:1.02rem}
    .footer-brand span{display:block;color:var(--muted);font-size:.92rem;margin-top:3px}
    .footer-grid p{
      margin:0;
      color:var(--muted);
    }
    .footer-links{
      display:grid;
      gap:10px;
      align-content:start;
    }
    .footer-links a{
      color:var(--muted);
      padding:4px 0;
    }
    .footer-links a:hover{color:var(--brand)}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      padding:16px 24px 20px;
      border-top:1px solid rgba(217,226,223,.95);
      color:var(--muted-2);
      font-size:.92rem;
    }

    .section + .section{margin-top:24px}

    @media (max-width: 1080px){
      .topbar{
        grid-template-columns:1fr;
      }
      .nav-links{justify-content:flex-start}
      .hero-grid,
      .cta-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .hero-points,
      .levels-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .preview-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
    }
    @media (max-width: 760px){
      .container{width:min(var(--container), calc(100% - 20px))}
      .header-inner{padding:12px 0 14px}
      .search-shell{
        border-radius:18px;
        padding:10px 12px;
        flex-wrap:wrap;
      }
      .search-shell input{
        width:100%;
        order:3;
        flex-basis:100%;
        padding-top:2px;
      }
      .nav-links{gap:8px;overflow:auto;padding-bottom:2px}
      .nav-link{padding:.72rem .9rem}
      .hero{padding-top:20px}
      .hero h1{font-size:clamp(1.7rem, 7vw, 2.6rem)}
      .hero-points,
      .levels-grid,
      .preview-grid{
        grid-template-columns:1fr;
      }
      .comparison-table{
        display:block;
        overflow-x:auto;
        white-space:nowrap;
      }
      .comparison-table th,
      .comparison-table td{
        white-space:normal;
        min-width:160px;
      }
      .section-head,
      .comparison-wrap,
      .levels-grid,
      .preview-grid,
      .faq-wrap{
        padding-left:16px;
        padding-right:16px;
      }
      .cta-box{padding:18px}
      .cta-box h2{font-size:1.45rem}
      .footer-grid,
      .footer-bottom{
        padding-left:18px;
        padding-right:18px;
      }
      .footer-bottom{
        flex-direction:column;
      }
    }
    @media (max-width: 520px){
      .brand-sub{white-space:normal}
      .hero-actions,
      .cta-actions{
        width:100%;
      }
      .btn{width:100%}
      .summary-item{
        flex-direction:column;
      }
      .matrix{
        grid-template-columns:1fr;
      }
      .panel-head{padding-top:16px}
    }

/* roulang page: category1 */
:root{
      --bg:#eef2f6;
      --bg-soft:#f7f9fb;
      --panel:#ffffff;
      --panel-2:#f4f7f9;
      --ink:#0f1720;
      --muted:#60707f;
      --soft:#8a97a6;
      --line:#d9e2ea;
      --line-strong:#c7d2dd;
      --brand:#0d8f86;
      --brand-2:#2563eb;
      --brand-3:#0f766e;
      --accent:#f4b942;
      --success:#15803d;
      --shadow:0 18px 46px rgba(15, 23, 42, .08);
      --shadow-soft:0 10px 26px rgba(15, 23, 42, .06);
      --radius:24px;
      --radius-sm:16px;
      --radius-xs:12px;
      --container:1180px;
      --gap:24px;
      --gap-sm:16px;
      --transition:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at top left, rgba(13,143,134,.08), transparent 28%),
        radial-gradient(circle at 85% 15%, rgba(37,99,235,.08), transparent 24%),
        linear-gradient(180deg, #f8fafc 0%, #edf3f7 100%);
      line-height:1.75;
      min-height:100vh;
      color-scheme:light;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(13,143,134,.18);color:#0b1720}
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }
    .focus-ring:focus-visible,
    .button:focus-visible,
    .nav-link:focus-visible,
    .search-shell input:focus-visible,
    .search-shell button:focus-visible,
    .footer-links a:focus-visible,
    .accordion-title:focus-visible{
      outline:3px solid rgba(13,143,134,.28);
      outline-offset:2px;
      border-radius:14px;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(150%) blur(18px);
      background:rgba(246,249,251,.86);
      border-bottom:1px solid rgba(215,224,233,.9);
      box-shadow:0 8px 22px rgba(15,23,42,.04);
    }
    .header-inner{
      padding:16px 0 14px;
    }
    .topbar{
      display:grid;
      grid-template-columns:auto minmax(0,1fr) auto;
      gap:16px;
      align-items:center;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-mark{
      width:46px;
      height:46px;
      border-radius:16px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:linear-gradient(145deg, var(--brand), #12b3a8);
      color:#fff;
      box-shadow:0 12px 24px rgba(13,143,134,.22);
      flex:0 0 auto;
    }
    .brand-mark i{font-size:1rem}
    .brand-copy{
      display:flex;
      flex-direction:column;
      min-width:0;
    }
    .brand-name{
      font-size:1.02rem;
      font-weight:800;
      letter-spacing:.02em;
      line-height:1.2;
    }
    .brand-sub{
      font-size:.82rem;
      color:var(--muted);
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .search-shell{
      display:flex;
      align-items:center;
      gap:10px;
      padding:12px 14px;
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:18px;
      box-shadow:var(--shadow-soft);
      min-width:0;
    }
    .search-shell i{
      color:var(--brand);
      font-size:.96rem;
      flex:0 0 auto;
    }
    .search-shell input{
      border:0;
      outline:none;
      background:transparent;
      width:100%;
      min-width:0;
      color:var(--ink);
    }
    .search-shell input::placeholder{color:#7b8794}
    .search-shell button{
      border:0;
      background:linear-gradient(135deg, var(--brand), #0ea5a5);
      color:#fff;
      border-radius:12px;
      padding:10px 16px;
      cursor:pointer;
      font-weight:700;
      letter-spacing:.02em;
      transition:transform var(--transition), filter var(--transition), box-shadow var(--transition);
      box-shadow:0 10px 18px rgba(13,143,134,.16);
      flex:0 0 auto;
    }
    .search-shell button:hover,
    .search-shell button:focus-visible{
      transform:translateY(-1px);
      filter:brightness(1.02);
    }
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:10px;
      flex-wrap:wrap;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:11px 14px;
      border-radius:14px;
      color:var(--muted);
      border:1px solid transparent;
      background:transparent;
      transition:transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
      white-space:nowrap;
      font-weight:700;
    }
    .nav-link i{font-size:.95rem}
    .nav-link:hover{
      background:rgba(13,143,134,.08);
      border-color:rgba(13,143,134,.14);
      color:var(--ink);
      transform:translateY(-1px);
    }
    .nav-link.is-active{
      background:linear-gradient(135deg, rgba(13,143,134,.12), rgba(37,99,235,.09));
      border-color:rgba(13,143,134,.2);
      color:#0d433f;
      box-shadow:0 8px 18px rgba(13,143,134,.08);
    }
    .quick-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:12px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(217,226,234,.95);
      color:#4f5d6a;
      font-size:.9rem;
      box-shadow:0 6px 16px rgba(15,23,42,.04);
    }
    .tag i{color:var(--brand);font-size:.9rem}

    .hero-shell{
      padding:28px 0 14px;
    }
    .hero-panel{
      position:relative;
      overflow:hidden;
      border-radius:32px;
      background:
        radial-gradient(circle at 18% 12%, rgba(13,143,134,.28), transparent 28%),
        radial-gradient(circle at 82% 18%, rgba(37,99,235,.22), transparent 24%),
        linear-gradient(145deg, #0b1722 0%, #111d2d 48%, #17333b 100%);
      color:#f3f7fb;
      box-shadow:0 26px 58px rgba(7,13,23,.22);
      border:1px solid rgba(255,255,255,.08);
    }
    .hero-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(120deg, rgba(255,255,255,.05) 0%, rgba(255,255,255,0) 30%, rgba(255,255,255,.04) 100%),
        linear-gradient(0deg, rgba(0,0,0,.22), rgba(0,0,0,.22));
      pointer-events:none;
    }
    .hero-panel::after{
      content:"";
      position:absolute;
      inset:auto -15% -36% auto;
      width:420px;
      height:420px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(13,143,134,.22) 0%, rgba(13,143,134,0) 70%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      z-index:1;
      padding:34px;
      min-height:560px;
      display:flex;
      align-items:center;
    }
    .hero-copy{
      padding:10px 8px 10px 0;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.09);
      border:1px solid rgba(255,255,255,.12);
      color:#d9f7f3;
      font-size:.88rem;
      letter-spacing:.02em;
      margin-bottom:18px;
    }
    .hero-copy h1{
      margin:0;
      font-size:clamp(2rem, 4.2vw, 3.8rem);
      line-height:1.1;
      letter-spacing:-.03em;
      max-width:12ch;
    }
    .hero-copy p{
      margin:18px 0 0;
      color:#c9d7e1;
      font-size:1.05rem;
      max-width:42rem;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
    }
    .button{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      padding:13px 18px;
      border-radius:16px;
      font-weight:800;
      letter-spacing:.02em;
      border:1px solid transparent;
      transition:transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition), filter var(--transition);
      cursor:pointer;
      line-height:1;
      user-select:none;
    }
    .primary-btn{
      background:linear-gradient(135deg, #14b8a6, #0ea5e9);
      color:#fff;
      box-shadow:0 14px 26px rgba(14,165,233,.18);
    }
    .primary-btn:hover{transform:translateY(-2px);filter:brightness(1.02)}
    .secondary-btn{
      background:rgba(255,255,255,.06);
      color:#eff6fb;
      border-color:rgba(255,255,255,.14);
    }
    .secondary-btn:hover{
      transform:translateY(-2px);
      background:rgba(255,255,255,.1);
      border-color:rgba(255,255,255,.22);
    }
    .hero-metrics{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:14px;
      margin-top:28px;
      max-width:34rem;
    }
    .metric{
      padding:16px 18px;
      border-radius:20px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
      box-shadow:0 12px 20px rgba(0,0,0,.08);
      backdrop-filter:blur(8px);
    }
    .metric strong{
      display:block;
      font-size:1.5rem;
      line-height:1;
      color:#fff;
      margin-bottom:8px;
    }
    .metric span{
      font-size:.92rem;
      color:#c8d5df;
    }
    .hero-list{
      list-style:none;
      margin:20px 0 0;
      padding:0;
      display:grid;
      gap:10px;
      max-width:40rem;
    }
    .hero-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:#deebf2;
      font-size:.98rem;
    }
    .hero-list i{
      margin-top:.22rem;
      color:#6ee7d8;
      flex:0 0 auto;
    }

    .hero-media{
      position:relative;
      padding:8px 0 8px 16px;
    }
    .hero-media-frame{
      position:relative;
      min-height:360px;
      border-radius:28px;
      border:1px solid rgba(255,255,255,.12);
      background:
        linear-gradient(135deg, rgba(255,255,255,.1), rgba(255,255,255,.03)),
        radial-gradient(circle at 20% 20%, rgba(20,184,166,.22), transparent 28%),
        radial-gradient(circle at 80% 22%, rgba(96,165,250,.22), transparent 26%),
        linear-gradient(180deg, rgba(8,18,29,.9), rgba(11,25,38,.96));
      box-shadow:0 22px 42px rgba(0,0,0,.25);
      overflow:hidden;
      isolation:isolate;
    }
    .hero-media-frame::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px) 0 0 / 32px 32px,
        linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px) 0 0 / 32px 32px;
      opacity:.35;
      pointer-events:none;
    }
    .hero-media-frame::after{
      content:"";
      position:absolute;
      inset:auto -8% -16% -8%;
      height:48%;
      background:linear-gradient(180deg, transparent, rgba(9,17,27,.88));
      pointer-events:none;
    }
    .media-chip{
      position:absolute;
      top:18px;
      left:18px;
      z-index:2;
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.12);
      color:#e9f3fb;
      font-size:.88rem;
      backdrop-filter:blur(8px);
    }
    .media-chip::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:#6ee7d8;
      box-shadow:0 0 0 6px rgba(110,231,216,.14);
    }
    .play-button{
      position:absolute;
      inset:50% auto auto 50%;
      transform:translate(-50%, -50%);
      width:82px;
      height:82px;
      border-radius:50%;
      border:0;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:linear-gradient(135deg, rgba(20,184,166,.96), rgba(37,99,235,.96));
      color:#fff;
      box-shadow:0 18px 34px rgba(13,143,134,.3);
      z-index:2;
      transition:transform var(--transition), filter var(--transition), box-shadow var(--transition);
      cursor:pointer;
    }
    .play-button i{font-size:1.15rem;margin-left:3px}
    .play-button:hover{transform:translate(-50%, -51%) scale(1.03);filter:brightness(1.03)}
    .media-copy{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      z-index:2;
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:14px;
    }
    .media-copy strong{
      display:block;
      font-size:1.08rem;
      color:#fff;
      margin-bottom:4px;
    }
    .media-copy span{
      color:#c0cfda;
      font-size:.92rem;
    }
    .media-stats{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:12px;
      margin-top:14px;
    }
    .media-stat{
      padding:14px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.1);
      color:#eff6fb;
    }
    .media-stat strong{
      display:block;
      font-size:1rem;
      margin-bottom:4px;
    }
    .media-stat span{
      color:#c9d6df;
      font-size:.88rem;
    }
    .media-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:12px;
      margin-top:14px;
    }
    .mini-card{
      padding:14px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.1);
      color:#f7fbfe;
    }
    .mini-card span{
      display:block;
      color:#c9d6df;
      font-size:.85rem;
      margin-bottom:8px;
    }
    .mini-card strong{
      font-size:1.08rem;
    }

    .section{
      padding:18px 0 0;
    }
    .section-panel{
      margin-top:22px;
      background:rgba(255,255,255,.78);
      border:1px solid rgba(217,226,234,.88);
      border-radius:30px;
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .section-inner{
      padding:28px;
    }
    .section-head{
      display:flex;
      flex-direction:column;
      gap:10px;
      margin-bottom:20px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-size:.88rem;
      font-weight:800;
      letter-spacing:.06em;
      text-transform:none;
      color:var(--brand);
    }
    .section-kicker::before{
      content:"";
      width:11px;
      height:11px;
      border-radius:50%;
      background:linear-gradient(135deg, var(--brand), #0ea5e9);
      box-shadow:0 0 0 5px rgba(13,143,134,.12);
    }
    .section-head h2{
      margin:0;
      font-size:clamp(1.5rem, 2.5vw, 2.2rem);
      line-height:1.18;
      letter-spacing:-.02em;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      max-width:60rem;
    }

    .table-wrap{
      border-radius:22px;
      overflow:hidden;
      border:1px solid var(--line);
      background:var(--panel);
      box-shadow:var(--shadow-soft);
    }
    .comparison-table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
    }
    .comparison-table caption{
      text-align:left;
      padding:16px 20px 0;
      color:var(--soft);
      font-size:.92rem;
    }
    .comparison-table thead th{
      background:linear-gradient(180deg, #f8fbfd, #eef4f8);
      color:#435364;
      font-weight:800;
      padding:16px 18px;
      border-bottom:1px solid var(--line);
      text-align:left;
      white-space:nowrap;
      font-size:.95rem;
    }
    .comparison-table tbody td{
      padding:18px;
      border-bottom:1px solid var(--line);
      vertical-align:top;
      color:#304152;
      background:#fff;
    }
    .comparison-table tbody tr:last-child td{border-bottom:0}
    .comparison-table tbody tr:hover td{
      background:rgba(13,143,134,.03);
    }
    .level-name{
      display:flex;
      flex-direction:column;
      gap:8px;
      font-weight:800;
      color:var(--ink);
    }
    .level-name small{
      font-weight:700;
      color:var(--muted);
      font-size:.86rem;
    }
    .status-badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      font-size:.82rem;
      font-weight:800;
      letter-spacing:.01em;
      white-space:nowrap;
    }
    .status-badge::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:currentColor;
      opacity:.7;
    }
    .status-ready{background:rgba(13,143,134,.1); color:#0d6a63;}
    .status-recommend{background:rgba(37,99,235,.1); color:#1e40af;}
    .status-peak{background:rgba(244,185,66,.16); color:#9a6700;}
    .status-full{background:rgba(21,128,61,.1); color:#166534;}
    .table-note{
      padding:14px 18px 18px;
      color:var(--muted);
      font-size:.92rem;
      border-top:1px solid var(--line);
      background:#fbfdfe;
    }
    .show-desktop{display:block}
    .show-mobile{display:none}

    .comparison-cards{
      display:grid;
      gap:14px;
    }
    .comparison-card{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:20px;
      box-shadow:var(--shadow-soft);
      padding:18px;
    }
    .comparison-card .card-top{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      margin-bottom:12px;
    }
    .comparison-card h3{
      margin:0;
      font-size:1.06rem;
      line-height:1.25;
    }
    .kv-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .kv-list li{
      display:grid;
      grid-template-columns:86px minmax(0,1fr);
      gap:10px;
      align-items:start;
      color:#314255;
      font-size:.95rem;
    }
    .kv-list span{
      color:var(--muted);
      font-weight:700;
    }

    .feature-grid{
      display:grid;
      gap:16px;
      grid-template-columns:repeat(4,minmax(0,1fr));
    }
    .feature-card{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:24px;
      box-shadow:var(--shadow-soft);
      padding:20px;
      transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      min-height:100%;
    }
    .feature-card:hover{
      transform:translateY(-3px);
      box-shadow:0 18px 36px rgba(15,23,42,.1);
      border-color:rgba(13,143,134,.22);
    }
    .feature-card .badge{
      display:inline-flex;
      align-items:center;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(13,143,134,.1);
      color:#0b736d;
      font-size:.82rem;
      font-weight:800;
      margin-bottom:14px;
    }
    .feature-card h3{
      margin:0;
      font-size:1.08rem;
      line-height:1.3;
    }
    .feature-card p{
      margin:10px 0 0;
      color:var(--muted);
      font-size:.95rem;
    }
    .feature-points{
      display:grid;
      gap:8px;
      margin:14px 0 0;
      padding:0;
      list-style:none;
    }
    .feature-points li{
      display:flex;
      align-items:flex-start;
      gap:8px;
      color:#304152;
      font-size:.93rem;
    }
    .feature-points i{
      color:var(--brand);
      margin-top:.25rem;
      flex:0 0 auto;
    }

    .preview-grid{
      display:grid;
      gap:16px;
      grid-template-columns:repeat(4,minmax(0,1fr));
    }
    .preview-card{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:24px;
      overflow:hidden;
      box-shadow:var(--shadow-soft);
      transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      display:flex;
      flex-direction:column;
      min-height:100%;
    }
    .preview-card:hover{
      transform:translateY(-3px);
      box-shadow:0 18px 36px rgba(15,23,42,.1);
      border-color:rgba(37,99,235,.18);
    }
    .preview-thumb{
      position:relative;
      min-height:150px;
      background:
        radial-gradient(circle at 18% 24%, rgba(20,184,166,.34), transparent 24%),
        radial-gradient(circle at 82% 28%, rgba(37,99,235,.24), transparent 24%),
        linear-gradient(145deg, #0f1724, #17263a 55%, #203845);
      overflow:hidden;
    }
    .preview-thumb::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px) 0 0 / 28px 28px,
        linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px) 0 0 / 28px 28px;
      opacity:.28;
    }
    .preview-thumb .state{
      position:absolute;
      top:14px;
      left:14px;
      z-index:1;
    }
    .preview-thumb .state span{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:8px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      color:#f4fbff;
      border:1px solid rgba(255,255,255,.12);
      font-size:.8rem;
      font-weight:800;
      backdrop-filter:blur(8px);
    }
    .preview-body{
      padding:18px;
      display:flex;
      flex-direction:column;
      gap:10px;
      flex:1 1 auto;
    }
    .preview-body h3{
      margin:0;
      font-size:1.02rem;
    }
    .preview-body p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
    }
    .preview-tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:auto;
    }
    .mini-tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 10px;
      border-radius:999px;
      background:var(--panel-2);
      color:#445363;
      border:1px solid var(--line);
      font-size:.82rem;
      font-weight:700;
    }
    .card-actions{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      margin-top:4px;
    }
    .card-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:10px 14px;
      border-radius:14px;
      background:linear-gradient(135deg, rgba(13,143,134,.12), rgba(37,99,235,.1));
      color:#0b5e59;
      font-weight:800;
      border:1px solid rgba(13,143,134,.16);
      transition:transform var(--transition), background var(--transition), box-shadow var(--transition);
    }
    .card-link:hover{transform:translateY(-1px);box-shadow:0 10px 18px rgba(13,143,134,.08)}

    .faq-section .accordion{
      margin:0;
      background:transparent;
      border:0;
    }
    .faq-section .accordion-item{
      margin-bottom:14px;
      border:1px solid var(--line);
      border-radius:20px;
      overflow:hidden;
      background:var(--panel);
      box-shadow:var(--shadow-soft);
    }
    .faq-section .accordion-title{
      position:relative;
      font-size:1rem;
      font-weight:800;
      color:var(--ink);
      padding:18px 56px 18px 20px;
      border:0;
      background:transparent;
      transition:background var(--transition), color var(--transition);
    }
    .faq-section .accordion-title:hover{
      background:rgba(13,143,134,.04);
    }
    .faq-section .accordion-title::before{
      right:20px;
      color:var(--brand);
      margin-top:-.2rem;
      font-size:1.1rem;
    }
    .faq-section .accordion-content{
      padding:0 20px 20px;
      border:0;
      color:var(--muted);
      line-height:1.8;
    }

    .cta-shell{
      position:relative;
      overflow:hidden;
      border-radius:30px;
      background:
        radial-gradient(circle at 20% 20%, rgba(13,143,134,.24), transparent 26%),
        radial-gradient(circle at 82% 18%, rgba(37,99,235,.2), transparent 24%),
        linear-gradient(145deg, #0f1724 0%, #11293a 48%, #164746 100%);
      color:#eff7fb;
      padding:28px;
      box-shadow:0 24px 54px rgba(8,15,24,.2);
      border:1px solid rgba(255,255,255,.08);
    }
    .cta-shell::after{
      content:"";
      position:absolute;
      inset:auto -12% -30% auto;
      width:360px;
      height:360px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(110,231,216,.16) 0%, rgba(110,231,216,0) 72%);
      pointer-events:none;
    }
    .cta-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1.4fr) minmax(280px,.9fr);
      gap:18px;
      align-items:center;
    }
    .cta-shell h2{
      margin:10px 0 0;
      font-size:clamp(1.5rem, 2.8vw, 2.4rem);
      line-height:1.15;
    }
    .cta-shell p{
      margin:14px 0 0;
      color:#d8e7ef;
      max-width:56rem;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
    }
    .cta-actions .button{
      min-width:164px;
    }
    .cta-meta{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
      margin-top:18px;
    }
    .cta-meta .meta-item{
      padding:14px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      color:#eff7fb;
      font-size:.92rem;
    }
    .cta-meta .meta-item i{
      color:#6ee7d8;
      margin-right:8px;
    }

    .site-footer{
      padding:24px 0 34px;
    }
    .footer-panel{
      background:linear-gradient(145deg, #0d1722 0%, #122231 100%);
      color:#d9e5ed;
      border-radius:28px;
      padding:26px;
      box-shadow:0 20px 44px rgba(8,15,24,.18);
      border:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:minmax(0,1.4fr) repeat(2,minmax(180px,.7fr));
      gap:20px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
    }
    .footer-brand strong{
      display:block;
      color:#fff;
      font-size:1.03rem;
      margin-bottom:2px;
    }
    .footer-brand span{
      display:block;
      color:#a9b7c6;
      font-size:.88rem;
    }
    .site-footer p{
      margin:0;
      color:#b7c5d1;
      line-height:1.8;
      max-width:44rem;
    }
    .footer-links{
      display:flex;
      flex-direction:column;
      gap:10px;
      align-self:start;
    }
    .footer-links a{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#d7e5ef;
      transition:color var(--transition), transform var(--transition);
      width:max-content;
    }
    .footer-links a::before{
      content:"";
      width:6px;
      height:6px;
      border-radius:50%;
      background:rgba(110,231,216,.9);
      box-shadow:0 0 0 4px rgba(110,231,216,.12);
      flex:0 0 auto;
    }
    .footer-links a:hover{
      color:#fff;
      transform:translateX(2px);
    }
    .footer-bottom{
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:10px;
      padding-top:18px;
      margin-top:18px;
      border-top:1px solid rgba(255,255,255,.1);
      color:#9fb0be;
      font-size:.9rem;
    }

    .section-divider{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(13,143,134,.18), transparent);
      margin:24px 0;
    }

    @media (max-width: 1100px){
      .hero-grid{padding:28px}
      .feature-grid,
      .preview-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .cta-grid{
        grid-template-columns:1fr;
      }
      .cta-actions{
        justify-content:flex-start;
      }
    }
    @media (max-width: 960px){
      .topbar{
        grid-template-columns:1fr;
      }
      .nav-links{
        justify-content:flex-start;
      }
      .hero-grid{
        min-height:auto;
      }
      .hero-copy h1{
        max-width:none;
      }
      .hero-grid{
        padding:22px;
      }
      .hero-media{
        padding:18px 0 0;
      }
      .cta-meta{
        grid-template-columns:1fr;
      }
      .footer-grid{
        grid-template-columns:1fr;
      }
    }
    @media (max-width: 768px){
      .container{width:min(var(--container), calc(100% - 22px))}
      .header-inner{padding:12px 0 10px}
      .search-shell{
        width:100%;
        order:3;
      }
      .nav-links{
        overflow-x:auto;
        padding-bottom:4px;
        scrollbar-width:none;
      }
      .nav-links::-webkit-scrollbar{display:none}
      .nav-link{
        flex:0 0 auto;
      }
      .hero-shell{
        padding-top:20px;
      }
      .hero-panel{
        border-radius:28px;
      }
      .hero-grid{
        padding:20px 18px 18px;
      }
      .hero-metrics{
        grid-template-columns:1fr;
      }
      .hero-media-frame{
        min-height:300px;
      }
      .show-desktop{display:none}
      .show-mobile{display:grid}
      .feature-grid,
      .preview-grid{
        grid-template-columns:1fr;
      }
      .section-panel{
        border-radius:24px;
      }
      .section-inner{
        padding:20px 16px;
      }
      .footer-panel{
        border-radius:24px;
        padding:20px 16px;
      }
    }
    @media (max-width: 520px){
      .brand-sub{display:none}
      .quick-tags{
        gap:8px;
      }
      .tag{
        padding:7px 10px;
        font-size:.84rem;
      }
      .hero-copy h1{
        font-size:clamp(1.8rem, 11vw, 2.5rem);
      }
      .hero-copy p,
      .section-head p{
        font-size:.96rem;
      }
      .hero-actions,
      .cta-actions{
        flex-direction:column;
      }
      .button,
      .cta-actions .button{
        width:100%;
        min-width:0;
      }
      .media-copy{
        flex-direction:column;
        align-items:flex-start;
      }
      .media-grid{
        grid-template-columns:1fr;
      }
      .comparison-table thead th,
      .comparison-table tbody td{
        padding:14px 12px;
      }
      .comparison-card{
        padding:16px;
      }
      .kv-list li{
        grid-template-columns:1fr;
        gap:4px;
      }
      .faq-section .accordion-title{
        padding-right:48px;
      }
    }