/* roulang page: index */
:root{
      --bg:#08111f;
      --bg-2:#0d172a;
      --bg-3:#111f36;
      --surface:rgba(14,24,45,.84);
      --surface-2:rgba(18,31,56,.92);
      --line:rgba(159,188,255,.16);
      --line-strong:rgba(155,209,255,.28);
      --text:#edf4ff;
      --muted:#9db0d1;
      --muted-2:#7f91b2;
      --brand:#61e6ff;
      --brand-2:#15c7ff;
      --accent:#76ff8d;
      --warning:#f8d66d;
      --danger:#ff7b8b;
      --shadow:0 18px 60px rgba(0,0,0,.38);
      --shadow-soft:0 10px 26px rgba(0,0,0,.22);
      --radius:12px;
      --radius-sm:8px;
      --gap:1.25rem;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      line-height:1.6;
      color:var(--text);
      background:
        linear-gradient(180deg, rgba(8,17,31,.88), rgba(8,17,31,.98)),
        radial-gradient(circle at 20% 0%, rgba(97,230,255,.12), transparent 28%),
        radial-gradient(circle at 85% 10%, rgba(118,255,141,.07), transparent 22%),
        linear-gradient(135deg, #08111f 0%, #0b1424 45%, #091120 100%);
      background-attachment:fixed;
      overflow-x:hidden;
    }

    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size:34px 34px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.36), transparent 82%);
      opacity:.35;
      z-index:0;
    }

    a{color:inherit;text-decoration:none}
    a:hover{color:var(--brand)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(97,230,255,.28);color:#fff}
    .page-shell{position:relative;z-index:1}

    .site-header{
      position:sticky;
      top:0;
      z-index:1030;
      background:rgba(245,248,255,.94);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(13,23,42,.08);
      box-shadow:0 6px 22px rgba(3,11,28,.06);
    }
    .navbar{
      padding:.9rem 0;
    }
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:.7rem;
      color:#0b1730;
      font-weight:800;
      letter-spacing:0;
      white-space:nowrap;
    }
    .brand-mark{
      width:38px;height:38px;
      border-radius:10px;
      background:
        linear-gradient(145deg, rgba(13,31,54,.96), rgba(7,15,28,.96));
      border:1px solid rgba(97,230,255,.36);
      box-shadow:0 0 0 4px rgba(97,230,255,.08), inset 0 0 18px rgba(97,230,255,.12);
      color:var(--brand);
      display:grid;
      place-items:center;
      flex:0 0 auto;
    }
    .brand-mark i{font-size:1.05rem}
    .navbar-nav{
      gap:.35rem;
    }
    .nav-link{
      color:#33415f;
      font-weight:600;
      padding:.55rem .9rem !important;
      border-radius:999px;
      transition:all .2s ease;
    }
    .nav-link:hover,
    .nav-link:focus,
    .nav-link.active{
      color:#08111f;
      background:rgba(97,230,255,.14);
    }

    .nav-search{
      min-width:280px;
      max-width:360px;
    }
    .search-box .form-control{
      background:#fff;
      border:1px solid rgba(18,31,56,.12);
      color:#0b1730;
      border-radius:999px 0 0 999px;
      padding:.7rem 1rem;
      box-shadow:none;
    }
    .search-box .form-control::placeholder{color:#7182a7}
    .search-box .form-control:focus{
      border-color:rgba(97,230,255,.55);
      box-shadow:0 0 0 .2rem rgba(97,230,255,.14);
    }
    .search-box .btn{
      border-radius:0 999px 999px 0;
      padding:.7rem 1rem;
      border:1px solid rgba(18,31,56,.12);
      border-left:0;
    }
    .btn-strong{
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      color:#06101f;
      border:0;
      font-weight:800;
      box-shadow:0 10px 30px rgba(21,199,255,.25);
      transition:transform .2s ease, box-shadow .2s ease, filter .2s ease;
      border-radius:10px;
    }
    .btn-strong:hover,
    .btn-strong:focus{
      transform:translateY(-1px);
      box-shadow:0 14px 34px rgba(21,199,255,.34);
      filter:saturate(1.05);
      color:#06101f;
    }
    .btn-ghost{
      background:rgba(13,23,42,.04);
      border:1px solid rgba(13,23,42,.18);
      color:#0b1730;
      border-radius:10px;
      font-weight:700;
      transition:all .2s ease;
    }
    .btn-ghost:hover,
    .btn-ghost:focus{
      background:rgba(13,23,42,.08);
      color:#08111f;
      transform:translateY(-1px);
      box-shadow:0 8px 20px rgba(3,11,28,.08);
    }

    .navbar-toggler{
      border:1px solid rgba(18,31,56,.14);
      border-radius:10px;
      box-shadow:none !important;
    }

    .hero{
      position:relative;
      padding:1.5rem 0 1.3rem;
      background:
        linear-gradient(180deg, rgba(8,17,31,.55), rgba(8,17,31,.92)),
        linear-gradient(135deg, rgba(14,25,45,.94), rgba(8,15,28,.98));
      border-bottom:1px solid rgba(159,188,255,.08);
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(120deg, rgba(97,230,255,.07), transparent 30%),
        repeating-linear-gradient(90deg, rgba(97,230,255,.045) 0 1px, transparent 1px 120px);
      opacity:.65;
      pointer-events:none;
    }
    .hero .container{position:relative}
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.04fr) minmax(0,.96fr);
      gap:1.35rem;
      align-items:stretch;
      padding:1rem 0 1.1rem;
    }
    .hero-copy{
      padding:1.1rem 0 1rem;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.35rem .8rem;
      border-radius:999px;
      background:rgba(97,230,255,.12);
      border:1px solid rgba(97,230,255,.18);
      color:var(--brand);
      font-size:.92rem;
      font-weight:700;
    }
    .hero h1{
      margin:.95rem 0 .85rem;
      font-size:clamp(2.1rem, 3.1vw, 3.7rem);
      line-height:1.06;
      letter-spacing:0;
      max-width:12ch;
    }
    .hero-lead{
      max-width:58ch;
      color:#d4e1f6;
      font-size:1.02rem;
      margin-bottom:1.25rem;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:.8rem;
      margin-bottom:1rem;
    }
    .hero-meta{
      display:flex;
      flex-wrap:wrap;
      gap:.6rem;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:.4rem;
      padding:.45rem .7rem;
      border-radius:999px;
      border:1px solid rgba(159,188,255,.16);
      background:rgba(255,255,255,.04);
      color:#d7e3fb;
      font-size:.92rem;
      backdrop-filter:blur(10px);
    }
    .chip i{color:var(--brand)}
    .hero-panel{
      position:relative;
      padding:1rem;
      border-radius:16px;
      background:linear-gradient(180deg, rgba(15,26,47,.92), rgba(10,18,34,.9));
      border:1px solid rgba(159,188,255,.14);
      box-shadow:var(--shadow);
      overflow:hidden;
      min-height:100%;
    }
    .hero-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 20% 15%, rgba(97,230,255,.14), transparent 22%),
        radial-gradient(circle at 90% 10%, rgba(118,255,141,.09), transparent 20%);
      pointer-events:none;
    }
    .panel-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-start;
      gap:1rem;
      margin-bottom:1rem;
      position:relative;
      z-index:1;
    }
    .panel-title{
      font-size:1rem;
      font-weight:800;
      margin:0;
    }
    .panel-sub{
      color:var(--muted);
      font-size:.92rem;
      margin:.2rem 0 0;
    }
    .live-pill{
      padding:.35rem .68rem;
      border-radius:999px;
      border:1px solid rgba(118,255,141,.2);
      background:rgba(118,255,141,.1);
      color:#cffff0;
      font-size:.86rem;
      white-space:nowrap;
    }
    .signal-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:.75rem;
      position:relative;
      z-index:1;
    }
    .signal{
      border-radius:12px;
      padding:.95rem .9rem;
      background:rgba(8,16,31,.7);
      border:1px solid rgba(159,188,255,.12);
      min-height:104px;
    }
    .signal .label{
      color:var(--muted);
      font-size:.86rem;
      margin-bottom:.45rem;
    }
    .signal .value{
      font-size:1.55rem;
      line-height:1;
      font-weight:800;
      margin-bottom:.4rem;
    }
    .signal .trend{
      font-size:.86rem;
      color:#bfefff;
    }
    .signal .trend.good{color:#90ffc4}
    .signal .trend.warn{color:#ffe08b}
    .panel-stack{
      display:grid;
      gap:.75rem;
      margin-top:.8rem;
      position:relative;
      z-index:1;
    }
    .stack-item{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      padding:.8rem .9rem;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(159,188,255,.12);
      border-radius:12px;
    }
    .stack-item strong{font-size:.96rem}
    .stack-item small{color:var(--muted)}
    .progress-line{
      height:8px;
      background:rgba(255,255,255,.05);
      border-radius:999px;
      overflow:hidden;
      margin-top:.5rem;
    }
    .progress-line span{
      display:block;
      height:100%;
      width:68%;
      background:linear-gradient(90deg, var(--brand), var(--accent));
      border-radius:999px;
      box-shadow:0 0 18px rgba(97,230,255,.35);
    }
    .hero-bottom{
      margin-top:1.05rem;
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:.8rem;
    }
    .bottom-card{
      background:rgba(255,255,255,.035);
      border:1px solid rgba(159,188,255,.12);
      border-radius:12px;
      padding:.8rem .85rem;
    }
    .bottom-card .k{color:var(--muted);font-size:.82rem}
    .bottom-card .v{font-weight:800;font-size:1rem;margin-top:.18rem}

    .section{
      padding:1.5rem 0;
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:1rem;
      margin-bottom:1rem;
    }
    .section-title{
      margin:0;
      font-size:1.45rem;
      font-weight:800;
      letter-spacing:0;
    }
    .section-desc{
      margin:.28rem 0 0;
      color:var(--muted);
      max-width:68ch;
      font-size:.98rem;
    }
    .section-link{
      color:#d6f7ff;
      font-weight:700;
      white-space:nowrap;
    }
    .glass-card{
      position:relative;
      background:var(--surface);
      border:1px solid rgba(159,188,255,.12);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      transition:transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }
    .glass-card:hover{
      transform:translateY(-2px);
      border-color:rgba(97,230,255,.22);
      box-shadow:0 14px 32px rgba(0,0,0,.28);
    }
    .glass-card .card-body{padding:1rem}
    .glass-card .card-title{
      margin:0 0 .4rem;
      font-size:1.02rem;
      font-weight:800;
    }
    .glass-card p{color:var(--muted);margin:0}
    .metric-grid{
      display:grid;
      grid-template-columns:repeat(5,minmax(0,1fr));
      gap:.9rem;
    }
    .metric-card{
      padding:1rem;
      min-height:150px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .metric-card .head{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:.5rem;
      margin-bottom:.75rem;
    }
    .metric-card .tag{
      font-size:.82rem;
      color:#cde8ff;
      padding:.25rem .55rem;
      border-radius:999px;
      background:rgba(97,230,255,.08);
      border:1px solid rgba(97,230,255,.16);
    }
    .metric-card .num{
      font-size:2rem;
      font-weight:900;
      line-height:1;
      margin:.2rem 0;
    }
    .metric-card .sub{
      color:var(--muted);
      font-size:.92rem;
      margin-top:.2rem;
    }
    .metric-card .delta{
      color:#8effc2;
      font-weight:700;
      font-size:.88rem;
      margin-top:.6rem;
    }
    .metric-card.alt{
      background:linear-gradient(180deg, rgba(18,32,56,.95), rgba(12,22,40,.92));
    }

    .matrix-grid{
      display:grid;
      grid-template-columns:repeat(6,minmax(0,1fr));
      gap:.9rem;
    }
    .matrix-card{
      min-height:176px;
      padding:1rem;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .matrix-card.span-2{grid-column:span 2}
    .matrix-card.span-3{grid-column:span 3}
    .matrix-card .icon{
      width:40px;height:40px;
      border-radius:10px;
      display:grid;
      place-items:center;
      background:rgba(97,230,255,.12);
      color:var(--brand);
      border:1px solid rgba(97,230,255,.2);
      margin-bottom:.8rem;
      font-size:1.1rem;
    }
    .matrix-card .meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:.8rem;
      margin-top:.9rem;
      flex-wrap:wrap;
    }
    .matrix-card .btn{
      border-radius:10px;
      padding:.5rem .8rem;
      font-size:.92rem;
    }
    .mini-label{
      color:var(--muted);
      font-size:.85rem;
      margin-bottom:.3rem;
    }

    .news-wrap{
      display:grid;
      grid-template-columns:minmax(0,1.2fr) minmax(290px,.8fr);
      gap:.9rem;
      align-items:start;
    }
    .news-list{
      padding:.5rem 0 0;
    }
    .news-item{
      display:grid;
      grid-template-columns:auto minmax(0,1fr) auto;
      gap:.8rem;
      align-items:center;
      padding:.95rem 1rem;
      border-bottom:1px solid rgba(159,188,255,.1);
      transition:background .2s ease;
    }
    .news-item:hover{background:rgba(255,255,255,.025)}
    .news-item:last-child{border-bottom:0}
    .news-index{
      width:32px;height:32px;
      border-radius:10px;
      display:grid;
      place-items:center;
      background:rgba(97,230,255,.12);
      color:var(--brand);
      font-weight:800;
      flex:0 0 auto;
    }
    .news-item h3{
      font-size:1rem;
      margin:0 0 .18rem;
      font-weight:750;
    }
    .news-item p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
      overflow:hidden;
      text-overflow:ellipsis;
      display:-webkit-box;
      -webkit-line-clamp:1;
      -webkit-box-orient:vertical;
    }
    .news-meta{
      display:flex;
      flex-direction:column;
      align-items:flex-end;
      gap:.3rem;
      color:var(--muted);
      font-size:.84rem;
      white-space:nowrap;
    }
    .badge-soft{
      border:1px solid rgba(159,188,255,.16);
      background:rgba(255,255,255,.04);
      color:#dce9ff;
      border-radius:999px;
      font-weight:700;
      padding:.28rem .58rem;
      font-size:.8rem;
    }
    .aside-card{
      padding:1rem;
      min-height:100%;
    }
    .aside-card .list{
      display:grid;
      gap:.75rem;
      margin-top:.8rem;
    }
    .aside-row{
      display:flex;
      justify-content:space-between;
      gap:1rem;
      padding:.85rem .9rem;
      border-radius:12px;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(159,188,255,.1);
    }
    .aside-row strong{display:block}
    .aside-row small{color:var(--muted)}
    .tags{
      display:flex;
      flex-wrap:wrap;
      gap:.55rem;
      margin-top:1rem;
    }
    .tag-pill{
      padding:.42rem .72rem;
      border-radius:999px;
      background:rgba(97,230,255,.08);
      border:1px solid rgba(97,230,255,.16);
      color:#d9f9ff;
      font-size:.88rem;
    }

    .compare-wrap{
      padding:1rem;
    }
    .compare-table{
      width:100%;
      color:var(--text);
      margin:0;
      border-collapse:separate;
      border-spacing:0;
    }
    .compare-table thead th{
      background:rgba(255,255,255,.04);
      color:#dce7fb;
      font-size:.9rem;
      padding:1rem .85rem;
      border-bottom:1px solid rgba(159,188,255,.12);
      white-space:nowrap;
    }
    .compare-table tbody td{
      padding:1rem .85rem;
      border-bottom:1px solid rgba(159,188,255,.08);
      vertical-align:top;
      color:#eaf2ff;
    }
    .compare-table tbody tr:hover td{background:rgba(255,255,255,.02)}
    .compare-table .muted{color:var(--muted)}
    .compare-table .good{color:#8effc2;font-weight:700}
    .compare-table .warn{color:#ffe08b;font-weight:700}

    .entry-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:.9rem;
    }
    .entry-btn{
      min-height:98px;
      display:flex;
      align-items:center;
      justify-content:center;
      gap:.65rem;
      text-align:center;
      padding:1rem;
      border-radius:12px;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(159,188,255,.12);
      color:var(--text);
      transition:all .2s ease;
    }
    .entry-btn:hover{
      transform:translateY(-2px);
      border-color:rgba(97,230,255,.28);
      background:rgba(97,230,255,.08);
      color:#fff;
    }
    .entry-btn i{
      color:var(--brand);
      font-size:1.15rem;
    }
    .entry-btn span{
      display:block;
      font-weight:800;
      line-height:1.2;
    }
    .entry-btn small{
      display:block;
      color:var(--muted);
      font-weight:500;
      margin-top:.25rem;
    }

    .accordion{
      --bs-accordion-bg:transparent;
      --bs-accordion-border-color:rgba(159,188,255,.12);
      --bs-accordion-btn-color:var(--text);
      --bs-accordion-btn-bg:rgba(255,255,255,.03);
      --bs-accordion-active-color:var(--text);
      --bs-accordion-active-bg:rgba(97,230,255,.08);
      --bs-accordion-btn-focus-box-shadow:0 0 0 .2rem rgba(97,230,255,.12);
      --bs-accordion-border-radius:12px;
      --bs-accordion-inner-border-radius:12px;
      --bs-accordion-btn-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2361e6ff'%3e%3cpath fill-rule='evenodd' d='M1.5 5.5a.75.75 0 0 1 1.06 0L8 10.94l5.44-5.44a.75.75 0 1 1 1.06 1.06l-6 6a.75.75 0 0 1-1.06 0l-6-6a.75.75 0 0 1 0-1.06z'/%3e%3c/svg%3e");
      --bs-accordion-btn-active-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2361e6ff'%3e%3cpath fill-rule='evenodd' d='M1.5 5.5a.75.75 0 0 1 1.06 0L8 10.94l5.44-5.44a.75.75 0 1 1 1.06 1.06l-6 6a.75.75 0 0 1-1.06 0l-6-6a.75.75 0 0 1 0-1.06z'/%3e%3c/svg%3e");
      display:grid;
      gap:.75rem;
    }
    .accordion-item{
      background:var(--surface);
      border:1px solid rgba(159,188,255,.12);
      border-radius:12px !important;
      overflow:hidden;
    }
    .accordion-button{
      border-radius:0 !important;
      color:var(--text);
      font-weight:700;
      padding:1rem 1rem;
      box-shadow:none !important;
    }
    .accordion-button:not(.collapsed){
      color:var(--text);
      background:rgba(97,230,255,.08);
    }
    .accordion-body{
      color:var(--muted);
      padding:0 1rem 1rem;
    }

    .form-panel{
      padding:1.15rem;
    }
    .form-panel .form-label{
      color:#dce9ff;
      font-weight:700;
      margin-bottom:.45rem;
    }
    .form-control,
    .form-select,
    .form-textarea{
      background:rgba(255,255,255,.04);
      border:1px solid rgba(159,188,255,.16);
      color:var(--text);
      border-radius:10px;
      padding:.8rem .9rem;
      box-shadow:none !important;
    }
    .form-control::placeholder,
    .form-textarea::placeholder{color:#8596b7}
    .form-control:focus,
    .form-select:focus,
    .form-textarea:focus{
      background:rgba(255,255,255,.05);
      color:#fff;
      border-color:rgba(97,230,255,.45);
      box-shadow:0 0 0 .2rem rgba(97,230,255,.14) !important;
    }
    .field-note{
      color:var(--muted);
      font-size:.9rem;
      margin-top:.4rem;
    }
    textarea.form-control{min-height:120px;resize:vertical}

    .footer{
      padding:1.4rem 0 2rem;
      margin-top:1rem;
      border-top:1px solid rgba(159,188,255,.08);
      background:linear-gradient(180deg, rgba(8,17,31,.16), rgba(8,17,31,.36));
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr .75fr;
      gap:1rem;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:.7rem;
      margin-bottom:.8rem;
      font-weight:800;
      font-size:1.02rem;
    }
    .footer p{
      color:var(--muted);
      margin:0;
      max-width:52ch;
    }
    .footer-links{
      display:grid;
      gap:.55rem;
    }
    .footer-links a{
      color:#dce8ff;
      width:max-content;
    }
    .footer-links a:hover{color:var(--brand)}
    .footer-note{
      margin-top:1.1rem;
      padding-top:1rem;
      border-top:1px solid rgba(159,188,255,.08);
      color:var(--muted-2);
      font-size:.92rem;
      display:flex;
      justify-content:space-between;
      gap:1rem;
      flex-wrap:wrap;
    }

    .section-divider{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(97,230,255,.28), transparent);
      margin:0;
      border:0;
      opacity:.9;
    }

    @media (max-width: 1199.98px){
      .metric-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
      .matrix-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
      .hero-grid{grid-template-columns:1fr}
      .hero-bottom{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-grid{grid-template-columns:1fr 1fr}
    }

    @media (max-width: 991.98px){
      .nav-search{min-width:100%;max-width:100%;margin-top:.75rem}
      .navbar .container{gap:.4rem}
      .hero{padding-top:1rem}
      .news-wrap{grid-template-columns:1fr}
      .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-grid{grid-template-columns:1fr}
    }

    @media (max-width: 767.98px){
      .section{padding:1.2rem 0}
      .section-head{flex-direction:column;align-items:flex-start}
      .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .matrix-grid{grid-template-columns:1fr}
      .matrix-card.span-2,
      .matrix-card.span-3{grid-column:span 1}
      .signal-grid{grid-template-columns:1fr}
      .hero-bottom{grid-template-columns:1fr}
      .entry-grid{grid-template-columns:1fr}
      .news-item{
        grid-template-columns:auto minmax(0,1fr);
        align-items:flex-start;
      }
      .news-meta{
        grid-column:2;
        flex-direction:row;
        justify-content:flex-start;
      }
      .compare-table{
        min-width:720px;
      }
      .compare-wrap{
        overflow:auto;
      }
    }

    @media (max-width: 575.98px){
      .navbar-brand{font-size:1rem}
      .brand-mark{width:34px;height:34px}
      .hero h1{font-size:2rem;max-width:14ch}
      .hero-actions .btn{width:100%}
      .hero-meta{gap:.5rem}
      .chip{width:100%;justify-content:flex-start}
      .metric-grid{grid-template-columns:1fr}
      .news-item{padding:.9rem .75rem}
      .aside-card,
      .compare-wrap,
      .form-panel,
      .matrix-card,
      .metric-card{padding:.9rem}
      .accordion-button{padding:.95rem .85rem}
    }

/* roulang page: category1 */
:root {
      --nav-bg: #ffffff;
      --nav-text: #122033;
      --nav-muted: #627086;
      --bg: #07111f;
      --bg-2: #0a1729;
      --panel: rgba(16, 32, 54, .72);
      --panel-strong: rgba(21, 42, 70, .9);
      --glass: rgba(255, 255, 255, .075);
      --text: #eef6ff;
      --muted: #9fb0c5;
      --muted-2: #74869d;
      --line: rgba(178, 211, 255, .16);
      --line-strong: rgba(89, 214, 255, .34);
      --cyan: #39d8ff;
      --green: #79ffb2;
      --blue: #2b78ff;
      --amber: #ffd166;
      --danger: #ff6b7a;
      --radius: 10px;
      --radius-sm: 8px;
      --shadow: 0 20px 60px rgba(0, 0, 0, .34);
      --glow: 0 0 0 1px rgba(57, 216, 255, .22), 0 0 28px rgba(57, 216, 255, .22);
      --container: 1180px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 20% 10%, rgba(43, 120, 255, .28), transparent 34%),
        radial-gradient(circle at 84% 24%, rgba(57, 216, 255, .16), transparent 28%),
        linear-gradient(180deg, #081322 0%, #06101d 46%, #091827 100%);
      line-height: 1.65;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.72), transparent 82%);
      z-index: -1;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
    }

    img {
      max-width: 100%;
      display: block;
    }

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

    .container {
      max-width: var(--container);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: var(--nav-bg);
      border-bottom: 1px solid rgba(16, 32, 54, .08);
      box-shadow: 0 10px 30px rgba(7, 17, 31, .08);
    }

    .navbar {
      padding: 14px 0;
    }

    .navbar-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--nav-text);
      font-weight: 850;
      letter-spacing: -.02em;
      font-size: 1.06rem;
      white-space: nowrap;
    }

    .brand-mark {
      width: 34px;
      height: 34px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 9px;
      color: #06111f;
      background: linear-gradient(135deg, var(--cyan), var(--green));
      box-shadow: 0 8px 24px rgba(57, 216, 255, .28);
      flex: 0 0 auto;
    }

    .navbar-toggler {
      border: 1px solid rgba(18, 32, 51, .16);
      border-radius: 9px;
      padding: 8px 10px;
    }

    .navbar-toggler:focus {
      box-shadow: 0 0 0 3px rgba(43, 120, 255, .16);
    }

    .nav-link {
      color: var(--nav-muted);
      font-weight: 700;
      padding: 8px 14px !important;
      border-radius: 9px;
      white-space: nowrap;
    }

    .nav-link:hover,
    .nav-link:focus {
      color: var(--nav-text);
      background: rgba(43, 120, 255, .08);
    }

    .nav-link.active {
      color: #075a78 !important;
      background: rgba(57, 216, 255, .14);
    }

    .nav-search {
      min-width: 310px;
    }

    .search-box {
      border: 1px solid rgba(18, 32, 51, .12);
      border-radius: 12px;
      overflow: hidden;
      background: #f5f8fb;
    }

    .search-box .form-control {
      border: 0;
      background: transparent;
      min-height: 42px;
      color: var(--nav-text);
      box-shadow: none;
    }

    .search-box .form-control::placeholder {
      color: #7c8898;
    }

    .btn {
      border-radius: 9px;
      font-weight: 800;
      transition: transform .2s ease, box-shadow .2s ease, filter .2s ease, background .2s ease, border-color .2s ease;
    }

    .btn:focus-visible,
    .form-control:focus,
    .form-select:focus,
    textarea:focus {
      outline: none;
      box-shadow: 0 0 0 3px rgba(57, 216, 255, .22);
      border-color: var(--cyan);
    }

    .btn-ghost {
      color: #1b334d;
      background: rgba(255, 255, 255, .72);
      border: 0;
      padding-inline: 14px;
    }

    .btn-ghost:hover {
      color: #06111f;
      background: #ffffff;
    }

    .btn-strong {
      color: #06111f;
      border: 1px solid rgba(57, 216, 255, .75);
      background: linear-gradient(135deg, var(--cyan), var(--green));
      box-shadow: 0 14px 34px rgba(57, 216, 255, .28);
    }

    .btn-strong:hover {
      color: #06111f;
      transform: translateY(-2px);
      filter: brightness(1.06);
      box-shadow: 0 18px 44px rgba(57, 216, 255, .38);
    }

    .btn-outline-glow {
      color: var(--text);
      border: 1px solid var(--line-strong);
      background: rgba(255, 255, 255, .04);
    }

    .btn-outline-glow:hover {
      color: #ffffff;
      border-color: var(--cyan);
      transform: translateY(-2px);
      box-shadow: var(--glow);
      background: rgba(57, 216, 255, .1);
    }

    main {
      position: relative;
    }

    .section {
      padding: 74px 0;
    }

    .section-tight {
      padding: 42px 0;
    }

    .hero-category {
      padding: 62px 0 28px;
      border-bottom: 1px solid var(--line);
      background:
        linear-gradient(135deg, rgba(12, 29, 52, .9), rgba(8, 17, 31, .52)),
        radial-gradient(circle at 88% 10%, rgba(121, 255, 178, .13), transparent 30%);
    }

    .hero-shell {
      display: grid;
      grid-template-columns: minmax(0, 1.12fr) minmax(330px, .88fr);
      gap: 28px;
      align-items: stretch;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 10px;
      border-radius: 999px;
      color: var(--green);
      border: 1px solid rgba(121, 255, 178, .28);
      background: rgba(121, 255, 178, .08);
      font-size: .86rem;
      font-weight: 800;
      margin-bottom: 16px;
    }

    h1,
    h2,
    h3 {
      letter-spacing: -.035em;
      line-height: 1.18;
      margin: 0;
    }

    h1 {
      font-size: clamp(2.2rem, 5vw, 4.25rem);
      max-width: 800px;
      font-weight: 900;
    }

    .hero-lead {
      max-width: 760px;
      color: #c8d5e6;
      font-size: 1.08rem;
      margin: 18px 0 24px;
    }

    .quick-form {
      display: grid;
      grid-template-columns: 1fr 160px;
      gap: 10px;
      max-width: 620px;
      padding: 10px;
      border-radius: 12px;
      background: rgba(255, 255, 255, .07);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .quick-form .form-control {
      min-height: 48px;
      color: var(--text);
      background: rgba(5, 13, 24, .72);
      border: 1px solid rgba(255,255,255,.12);
      border-radius: 9px;
    }

    .trust-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    .mini-badge,
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 28px;
      padding: 5px 9px;
      border-radius: 8px;
      color: #dcecff;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, .055);
      font-size: .84rem;
      font-weight: 700;
    }

    .tag.hot {
      color: var(--green);
      border-color: rgba(121, 255, 178, .28);
      background: rgba(121, 255, 178, .08);
    }

    .tag.new {
      color: var(--cyan);
      border-color: rgba(57, 216, 255, .32);
      background: rgba(57, 216, 255, .08);
    }

    .status-panel,
    .glass-panel {
      border: 1px solid var(--line);
      background: linear-gradient(180deg, rgba(255,255,255,.1), rgba(255,255,255,.045));
      backdrop-filter: blur(18px);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }

    .status-panel {
      padding: 18px;
    }

    .panel-title {
      font-size: 1rem;
      font-weight: 850;
      color: #f8fbff;
    }

    .status-stack {
      display: grid;
      gap: 10px;
      margin-top: 16px;
    }

    .status-row {
      display: grid;
      grid-template-columns: 92px 1fr auto;
      gap: 12px;
      align-items: center;
      padding: 12px;
      border-radius: 9px;
      background: rgba(4, 12, 23, .52);
      border: 1px solid rgba(255,255,255,.08);
    }

    .bar {
      height: 8px;
      border-radius: 999px;
      overflow: hidden;
      background: rgba(255,255,255,.1);
    }

    .bar span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--blue), var(--cyan), var(--green));
    }

    .filter-wrap {
      margin-top: -22px;
      position: relative;
      z-index: 2;
    }

    .filter-panel {
      padding: 16px;
      display: grid;
      grid-template-columns: 1.2fr .9fr .9fr auto;
      gap: 12px;
      align-items: center;
    }

    .filter-panel .form-control,
    .filter-panel .form-select {
      min-height: 44px;
      color: var(--text);
      border: 1px solid var(--line);
      background-color: rgba(4, 12, 23, .72);
      border-radius: 9px;
    }

    .filter-panel .form-control::placeholder {
      color: var(--muted-2);
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      gap: 24px;
      align-items: end;
      margin-bottom: 22px;
    }

    .section-head h2 {
      font-size: clamp(1.55rem, 3vw, 2.25rem);
      font-weight: 900;
    }

    .section-head p {
      max-width: 580px;
      color: var(--muted);
      margin: 8px 0 0;
    }

    .metric-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }

    .metric-box {
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, .055);
      min-height: 118px;
    }

    .metric-label {
      color: var(--muted);
      font-size: .86rem;
      font-weight: 750;
    }

    .metric-value {
      margin-top: 8px;
      font-size: 2rem;
      font-weight: 900;
      line-height: 1;
    }

    .metric-note {
      margin-top: 8px;
      color: var(--green);
      font-size: .84rem;
      font-weight: 800;
    }

    .browse-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 18px;
      align-items: start;
    }

    .entry-list {
      display: grid;
      gap: 12px;
    }

    .entry-card {
      display: grid;
      grid-template-columns: 116px minmax(0, 1fr) auto;
      gap: 16px;
      align-items: center;
      padding: 14px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, .06);
      border-radius: var(--radius);
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }

    .entry-card:hover {
      transform: translateY(-2px);
      border-color: rgba(57, 216, 255, .38);
      box-shadow: 0 14px 38px rgba(0, 0, 0, .28);
      background: rgba(255, 255, 255, .082);
    }

    .entry-thumb {
      min-height: 84px;
      border-radius: 8px;
      border: 1px solid rgba(255,255,255,.1);
      background:
        linear-gradient(135deg, rgba(57,216,255,.18), rgba(121,255,178,.08)),
        repeating-linear-gradient(135deg, rgba(255,255,255,.08) 0 1px, transparent 1px 10px);
      position: relative;
      overflow: hidden;
    }

    .entry-thumb::after {
      content: "";
      position: absolute;
      inset: auto 10px 10px 10px;
      height: 8px;
      border-radius: 999px;
      background: linear-gradient(90deg, var(--cyan), transparent);
      opacity: .7;
    }

    .entry-title {
      font-size: 1.08rem;
      font-weight: 900;
      color: #ffffff;
      margin-bottom: 6px;
    }

    .entry-desc {
      color: var(--muted);
      margin: 0 0 10px;
      font-size: .94rem;
    }

    .entry-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .entry-action {
      min-width: 124px;
      text-align: right;
    }

    .heat {
      display: block;
      color: var(--amber);
      font-weight: 900;
      margin-bottom: 10px;
      white-space: nowrap;
    }

    .side-panel {
      padding: 16px;
      position: sticky;
      top: 92px;
    }

    .rank-list {
      display: grid;
      gap: 10px;
      margin: 16px 0 0;
      padding: 0;
      list-style: none;
    }

    .rank-list li {
      display: grid;
      grid-template-columns: 28px 1fr auto;
      gap: 10px;
      align-items: center;
      padding: 10px;
      border-radius: 8px;
      background: rgba(4, 12, 23, .46);
      border: 1px solid rgba(255,255,255,.08);
      color: #dcecff;
      font-size: .92rem;
    }

    .rank-no {
      width: 28px;
      height: 28px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 7px;
      color: #06111f;
      background: var(--cyan);
      font-weight: 900;
    }

    .matrix-line {
      display: grid;
      gap: 10px;
    }

    .matrix-item {
      display: grid;
      grid-template-columns: 42px 1fr 86px;
      gap: 12px;
      align-items: center;
      padding: 13px;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      background: rgba(255,255,255,.052);
    }

    .matrix-icon {
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 9px;
      color: var(--cyan);
      background: rgba(57, 216, 255, .1);
      border: 1px solid rgba(57, 216, 255, .18);
      font-size: 1.2rem;
    }

    .matrix-item h3 {
      font-size: 1rem;
      font-weight: 850;
      margin-bottom: 2px;
    }

    .matrix-item p {
      margin: 0;
      color: var(--muted);
      font-size: .91rem;
    }

    .compare-panel {
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(255,255,255,.055);
    }

    .compare-row {
      display: grid;
      grid-template-columns: 180px 1fr 1fr;
      border-bottom: 1px solid var(--line);
    }

    .compare-row:last-child {
      border-bottom: 0;
    }

    .compare-row > div {
      padding: 15px;
      color: var(--muted);
    }

    .compare-row .dim {
      color: #ffffff;
      font-weight: 850;
      background: rgba(57, 216, 255, .08);
    }

    .compare-row .better {
      color: #eafff4;
      background: rgba(121, 255, 178, .06);
    }

    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }

    .step {
      padding: 16px;
      min-height: 158px;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      background: rgba(255,255,255,.055);
      position: relative;
      overflow: hidden;
    }

    .step::before {
      content: attr(data-step);
      position: absolute;
      right: 12px;
      top: 8px;
      font-size: 2.4rem;
      font-weight: 950;
      color: rgba(255,255,255,.075);
      line-height: 1;
    }

    .step h3 {
      font-size: 1.04rem;
      font-weight: 900;
      margin: 32px 0 8px;
    }

    .step p {
      color: var(--muted);
      margin: 0;
      font-size: .94rem;
    }

    .accordion {
      display: grid;
      gap: 10px;
    }

    .accordion-item {
      color: var(--text);
      border: 1px solid var(--line);
      border-radius: var(--radius-sm) !important;
      overflow: hidden;
      background: rgba(255,255,255,.055);
    }

    .accordion-button {
      color: #ffffff;
      background: rgba(255,255,255,.045);
      font-weight: 850;
      box-shadow: none !important;
    }

    .accordion-button:not(.collapsed) {
      color: var(--green);
      background: rgba(121, 255, 178, .08);
    }

    .accordion-button::after {
      filter: invert(1);
    }

    .accordion-body {
      color: var(--muted);
      background: rgba(4, 12, 23, .32);
    }

    .cta-band {
      padding: 26px;
      border-radius: var(--radius);
      border: 1px solid rgba(57, 216, 255, .28);
      background:
        linear-gradient(135deg, rgba(57,216,255,.14), rgba(121,255,178,.07)),
        rgba(255,255,255,.052);
      box-shadow: var(--glow);
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 18px;
      align-items: center;
    }

    .cta-band h2 {
      font-size: clamp(1.45rem, 3vw, 2.15rem);
      font-weight: 900;
      margin-bottom: 8px;
    }

    .cta-band p {
      margin: 0;
      color: #c8d5e6;
    }

    .load-more {
      display: flex;
      justify-content: center;
      margin-top: 18px;
    }

    .footer {
      padding: 54px 0 26px;
      background: #050c16;
      border-top: 1px solid var(--line);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.25fr .8fr .8fr;
      gap: 34px;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 1.05rem;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .footer p {
      max-width: 440px;
      color: var(--muted);
      margin: 0;
    }

    .footer-links {
      display: grid;
      gap: 9px;
    }

    .footer-links a {
      color: var(--muted);
      font-weight: 700;
    }

    .footer-links a:hover {
      color: var(--cyan);
      transform: translateX(2px);
    }

    .footer-note {
      margin-top: 34px;
      padding-top: 18px;
      border-top: 1px solid var(--line);
      display: flex;
      justify-content: space-between;
      gap: 14px;
      color: var(--muted-2);
      font-size: .9rem;
      flex-wrap: wrap;
    }

    @media (max-width: 1024px) {
      .nav-search {
        min-width: 240px;
      }

      .hero-shell,
      .browse-layout {
        grid-template-columns: 1fr;
      }

      .side-panel {
        position: static;
      }

      .filter-panel {
        grid-template-columns: 1fr 1fr;
      }

      .metric-strip,
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }

      .entry-card {
        grid-template-columns: 96px 1fr;
      }

      .entry-action {
        grid-column: 1 / -1;
        display: flex;
        justify-content: space-between;
        align-items: center;
        text-align: left;
      }
    }

    @media (max-width: 768px) {
      .navbar {
        padding: 10px 0;
      }

      .navbar-collapse {
        padding-top: 14px;
      }

      .nav-search {
        min-width: 100%;
      }

      .hero-category {
        padding-top: 42px;
      }

      .section {
        padding: 54px 0;
      }

      .section-head,
      .cta-band {
        grid-template-columns: 1fr;
        display: grid;
        align-items: start;
      }

      .quick-form,
      .filter-panel,
      .metric-strip,
      .flow-steps,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .compare-row {
        grid-template-columns: 1fr;
      }

      .compare-row > div {
        border-bottom: 1px solid rgba(255,255,255,.06);
      }

      .compare-row > div:last-child {
        border-bottom: 0;
      }
    }

    @media (max-width: 520px) {
      h1 {
        font-size: 2.05rem;
      }

      .hero-lead {
        font-size: 1rem;
      }

      .entry-card {
        grid-template-columns: 1fr;
      }

      .entry-thumb {
        min-height: 118px;
      }

      .entry-action {
        display: grid;
        gap: 10px;
      }

      .entry-action .btn {
        width: 100%;
      }

      .matrix-item {
        grid-template-columns: 38px 1fr;
      }

      .matrix-item .tag {
        grid-column: 1 / -1;
        width: fit-content;
      }

      .status-row {
        grid-template-columns: 1fr;
      }

      .btn-strong,
      .btn-outline-glow {
        width: 100%;
      }

      .footer-note {
        display: grid;
      }
    }