/* roulang page: index */
:root{
      --bg: #0b0f14;
      --bg-soft: #0f141b;
      --surface: #111822;
      --surface-2: #151f2b;
      --line: rgba(170, 192, 219, .14);
      --line-strong: rgba(246, 185, 77, .35);
      --text: #eaf1f8;
      --muted: #9aabc0;
      --muted-2: #7a8ca3;
      --accent: #f6b94d;
      --accent-2: #5dd6c7;
      --accent-3: #ff8a5b;
      --shadow: 0 18px 60px rgba(0, 0, 0, .38);
      --shadow-soft: 0 10px 30px rgba(0, 0, 0, .22);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1180px;
      --gap: 24px;
      --transition: 180ms ease;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: Inter, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background:
        radial-gradient(1100px 500px at 10% -10%, rgba(246,185,77,.14), transparent 56%),
        radial-gradient(900px 460px at 92% 8%, rgba(93,214,199,.10), transparent 55%),
        linear-gradient(180deg, #0b0f14 0%, #0c1117 46%, #0a0e13 100%);
      color:var(--text);
      line-height:1.7;
      overflow-x:hidden;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }
    img{max-width:100%;display:block}
    a{color:inherit;text-decoration:none;transition:color var(--transition), transform var(--transition), opacity var(--transition)}
    a:hover{color:var(--accent)}
    button,input,select,textarea{font:inherit}
    ::selection{background:rgba(246,185,77,.24);color:#fff}
    .container-xxl{max-width:var(--container)}
    .site-shell{position:relative}
    .site-shell::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px);
      background-size:56px 56px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.42), transparent 75%);
      opacity:.18;
      z-index:-1;
    }

    /* NAV */
    .site-nav{
      position:sticky; top:0; z-index:1020;
      backdrop-filter: blur(14px);
      background: linear-gradient(180deg, rgba(8,12,18,.88), rgba(8,12,18,.62));
      border-bottom:1px solid rgba(170, 192, 219, .10);
    }
    .navbar{padding:14px 0}
    .navbar-brand{
      display:flex; align-items:center; gap:12px;
      color:var(--text) !important;
      font-weight:800;
      letter-spacing:.2px;
      white-space:nowrap;
    }
    .brand-mark{
      width:38px; height:38px; border-radius:14px;
      background:
        linear-gradient(145deg, rgba(246,185,77,.95), rgba(255,138,91,.85));
      box-shadow: 0 10px 24px rgba(246,185,77,.18), inset 0 1px 0 rgba(255,255,255,.28);
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute; inset:10px;
      border:1.5px solid rgba(11,15,20,.55);
      border-radius:10px;
    }
    .brand-mark::after{
      inset:14px 10px 10px 14px;
      border-radius:8px;
    }
    .brand-text{font-size:1rem; line-height:1.1}
    .brand-sub{display:block; font-size:.72rem; color:var(--muted); font-weight:600; margin-top:2px}
    .nav-wrap{
      gap:10px;
      padding:8px 12px;
      border:1px solid rgba(170,192,219,.10);
      border-radius:999px;
      background: rgba(17,24,34,.72);
      box-shadow: var(--shadow-soft);
    }
    .navbar .nav-link{
      position:relative;
      color:var(--muted);
      font-weight:600;
      font-size:.95rem;
      padding:10px 15px !important;
      border-radius:999px;
    }
    .navbar .nav-link:hover,
    .navbar .nav-link:focus{
      color:#fff;
      background:rgba(255,255,255,.03);
    }
    .navbar .nav-link.active,
    .navbar .nav-link[aria-current="page"]{
      color:#101319;
      background:linear-gradient(135deg, rgba(246,185,77,1), rgba(255,161,89,1));
      box-shadow: 0 10px 22px rgba(246,185,77,.16);
    }
    .navbar-toggler{
      border:1px solid rgba(170,192,219,.16) !important;
      color:var(--text) !important;
      background:rgba(17,24,34,.7);
      border-radius:14px;
      padding:.65rem .78rem;
      box-shadow:none;
    }
    .navbar-toggler:focus{box-shadow:0 0 0 .2rem rgba(246,185,77,.16)}
    .navbar-toggler-icon{
      background-image:none !important;
      width:1.1em; height:1.1em; position:relative;
    }
    .navbar-toggler-icon::before,
    .navbar-toggler-icon::after,
    .navbar-toggler-icon span{
      content:"";
      position:absolute; left:0; right:0;
      height:2px; border-radius:2px;
      background:currentColor;
      transition:transform var(--transition), top var(--transition), bottom var(--transition), opacity var(--transition);
    }
    .navbar-toggler-icon::before{top:1px}
    .navbar-toggler-icon::after{bottom:1px}
    .navbar-toggler-icon span{top:50%; transform:translateY(-50%)}
    .nav-cta{
      display:flex; align-items:center; gap:10px;
      color:var(--muted);
      font-size:.9rem;
      padding:10px 14px;
      border-radius:999px;
      background:rgba(17,24,34,.58);
      border:1px solid rgba(170,192,219,.12);
    }
    .nav-cta i{color:var(--accent)}

    /* BUTTONS */
    .btn{
      border-radius:999px;
      font-weight:700;
      padding:.85rem 1.2rem;
      border:1px solid transparent;
      transition:transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition);
    }
    .btn:hover{transform:translateY(-1px)}
    .btn:focus-visible{
      box-shadow:0 0 0 .2rem rgba(246,185,77,.18) !important;
    }
    .btn-primary{
      background:linear-gradient(135deg, var(--accent), var(--accent-3));
      color:#0d1117;
      box-shadow:0 14px 30px rgba(246,185,77,.15);
      border-color:rgba(255,255,255,.08);
    }
    .btn-primary:hover,
    .btn-primary:focus{
      color:#0b0f14;
      box-shadow:0 18px 38px rgba(246,185,77,.22);
      background:linear-gradient(135deg, #ffc864, #ff9b67);
    }
    .btn-outline-light{
      border-color:rgba(170,192,219,.18);
      color:var(--text);
      background:rgba(255,255,255,.02);
      box-shadow:none;
    }
    .btn-outline-light:hover,
    .btn-outline-light:focus{
      background:rgba(255,255,255,.05);
      color:#fff;
      border-color:rgba(246,185,77,.30);
    }
    .btn-dark-soft{
      background:rgba(21,31,43,.78);
      color:var(--text);
      border-color:rgba(170,192,219,.12);
    }
    .btn-dark-soft:hover{border-color:rgba(246,185,77,.30); background:rgba(21,31,43,.98); color:#fff}

    /* SECTIONS */
    main{padding:24px 0 10px}
    .section{
      padding:18px 0;
      position:relative;
    }
    .section-block{
      background: linear-gradient(180deg, rgba(17,24,34,.72), rgba(17,24,34,.50));
      border:1px solid rgba(170,192,219,.12);
      border-radius:var(--radius-xl);
      box-shadow: var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .section-block::before{
      content:"";
      position:absolute;
      inset:0;
      background: linear-gradient(135deg, rgba(246,185,77,.05), transparent 30%, rgba(93,214,199,.04) 92%);
      pointer-events:none;
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:18px;
      margin-bottom:18px;
      padding:0 4px;
    }
    .eyebrow{
      display:inline-flex; align-items:center; gap:8px;
      color:var(--accent);
      font-size:.84rem;
      font-weight:800;
      letter-spacing:.12em;
      text-transform:uppercase;
    }
    .eyebrow::before{
      content:"";
      width:34px; height:1px; background:linear-gradient(90deg, var(--accent), transparent);
      opacity:.9;
    }
    .section-title{
      font-size:clamp(1.34rem, 2vw, 2rem);
      line-height:1.2;
      margin:.25rem 0 .6rem;
      letter-spacing:-.03em;
    }
    .section-desc{
      color:var(--muted);
      margin:0;
      max-width:72ch;
      font-size:.98rem;
    }
    .section-link{
      color:var(--muted);
      font-weight:700;
      display:inline-flex;
      align-items:center;
      gap:8px;
      white-space:nowrap;
    }
    .section-link:hover{color:#fff}
    .section-link i{transition:transform var(--transition)}
    .section-link:hover i{transform:translateX(2px)}

    /* HERO */
    .hero{
      padding-top:10px;
    }
    .hero-panel{
      padding:28px;
      border-radius:32px;
      background:
        radial-gradient(850px 380px at 18% 16%, rgba(246,185,77,.17), transparent 45%),
        radial-gradient(760px 340px at 92% 12%, rgba(93,214,199,.12), transparent 44%),
        linear-gradient(180deg, rgba(17,24,34,.92), rgba(13,18,25,.88));
      border:1px solid rgba(170,192,219,.14);
      box-shadow: 0 24px 80px rgba(0,0,0,.42);
      overflow:hidden;
      position:relative;
    }
    .hero-panel::after{
      content:"";
      position:absolute;
      inset:auto -14% -40% -14%;
      height:220px;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.05), transparent);
      transform:rotate(-6deg);
      pointer-events:none;
      filter:blur(10px);
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.18fr .92fr;
      gap:28px;
      align-items:stretch;
      position:relative;
      z-index:1;
    }
    .hero-copy{
      padding:8px 0;
    }
    .hero-badges{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-bottom:18px;
    }
    .chip{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid rgba(170,192,219,.12);
      background:rgba(17,24,34,.66);
      color:var(--muted);
      font-weight:700;
      font-size:.88rem;
    }
    .chip .dot{
      width:8px; height:8px; border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(246,185,77,.12);
    }
    .hero h1{
      font-size:clamp(2.2rem, 4.4vw, 4.5rem);
      line-height:1.02;
      margin:0 0 16px;
      letter-spacing:-.05em;
      max-width:11.5ch;
    }
    .hero .lead{
      color:var(--muted);
      font-size:1.04rem;
      max-width:58ch;
      margin:0 0 18px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin:22px 0 18px;
    }
    .hero-stats-inline{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:14px;
    }
    .mini-stat{
      flex:1 1 150px;
      min-width:150px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.12);
      border-radius:20px;
      padding:14px 15px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
    }
    .mini-stat strong{
      display:block;
      font-size:1.2rem;
      margin-bottom:4px;
      letter-spacing:-.03em;
    }
    .mini-stat span{
      color:var(--muted);
      font-size:.86rem;
    }
    .hero-search{
      margin-top:18px;
      padding:14px;
      border-radius:24px;
      background:rgba(11,15,20,.40);
      border:1px solid rgba(170,192,219,.12);
      display:grid;
      grid-template-columns: 1fr auto;
      gap:12px;
      box-shadow: inset 0 1px 0 rgba(255,255,255,.02);
    }
    .hero-search .form-control{
      height:54px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.14);
      border-radius:16px;
      color:var(--text);
      padding:0 16px;
      box-shadow:none;
    }
    .hero-search .form-control::placeholder{color:#73879f}
    .hero-search .form-control:focus{
      border-color:rgba(246,185,77,.45);
      box-shadow:0 0 0 .2rem rgba(246,185,77,.10);
      background:rgba(255,255,255,.04);
    }
    .hero-search .btn{height:54px; padding-inline:1.35rem}
    .hero-hint{
      color:var(--muted-2);
      font-size:.86rem;
      margin-top:10px;
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
    }
    .hero-hint i{color:var(--accent)}
    .hero-visual{
      display:grid;
      grid-template-rows:auto auto;
      gap:14px;
    }
    .dashboard{
      background:linear-gradient(180deg, rgba(21,31,43,.95), rgba(17,24,34,.92));
      border:1px solid rgba(170,192,219,.12);
      border-radius:28px;
      padding:18px;
      box-shadow: var(--shadow-soft);
      position:relative;
      overflow:hidden;
    }
    .dashboard::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(360px 180px at 75% 20%, rgba(246,185,77,.14), transparent 62%),
        linear-gradient(180deg, rgba(255,255,255,.02), transparent 30%);
      pointer-events:none;
    }
    .dashboard-top{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      margin-bottom:16px;
      position:relative;
      z-index:1;
    }
    .dashboard-top .label{
      color:var(--muted);
      font-size:.86rem;
      font-weight:700;
    }
    .dashboard-top .status{
      display:inline-flex; align-items:center; gap:8px;
      color:#dce6f2;
      font-size:.84rem;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(170,192,219,.10);
    }
    .pulse{
      width:8px; height:8px; border-radius:50%;
      background:var(--accent-2);
      box-shadow:0 0 0 0 rgba(93,214,199,.36);
      animation:pulse 2s infinite;
    }
    @keyframes pulse{
      0%{box-shadow:0 0 0 0 rgba(93,214,199,.36)}
      70%{box-shadow:0 0 0 10px rgba(93,214,199,0)}
      100%{box-shadow:0 0 0 0 rgba(93,214,199,0)}
    }
    .graph{
      height:140px;
      border-radius:22px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.015)),
        repeating-linear-gradient(90deg, rgba(255,255,255,.06) 0 1px, transparent 1px 28px),
        repeating-linear-gradient(180deg, rgba(255,255,255,.05) 0 1px, transparent 1px 28px);
      position:relative;
      overflow:hidden;
      border:1px solid rgba(170,192,219,.10);
      margin-bottom:14px;
    }
    .graph .line{
      position:absolute;
      inset:auto 10px 20px 10px;
      height:72px;
      border-radius:20px;
      background:
        linear-gradient(90deg, transparent 0%, rgba(93,214,199,.95) 17%, rgba(246,185,77,.9) 55%, rgba(255,138,91,.92) 88%, transparent 100%);
      clip-path: polygon(0 82%, 12% 58%, 23% 66%, 35% 34%, 44% 48%, 55% 24%, 68% 46%, 79% 18%, 91% 28%, 100% 12%, 100% 100%, 0 100%);
      filter: drop-shadow(0 12px 24px rgba(246,185,77,.18));
      opacity:.92;
    }
    .graph .line::after{
      content:"";
      position:absolute;
      inset:0;
      border-radius:inherit;
      background:linear-gradient(90deg, rgba(93,214,199,.12), rgba(246,185,77,.12), rgba(255,138,91,.12));
      filter:blur(22px);
      opacity:.8;
    }
    .dash-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:12px;
      position:relative;
      z-index:1;
    }
    .dash-card{
      background:rgba(11,15,20,.42);
      border:1px solid rgba(170,192,219,.10);
      border-radius:18px;
      padding:14px;
      min-height:92px;
      transition:transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
    }
    .dash-card:hover{
      transform:translateY(-2px);
      border-color:rgba(246,185,77,.22);
      background:rgba(11,15,20,.56);
      box-shadow:0 16px 28px rgba(0,0,0,.20);
    }
    .dash-card .k{
      color:var(--muted);
      font-size:.84rem;
      margin-bottom:8px;
    }
    .dash-card .v{
      font-size:1.3rem;
      font-weight:800;
      letter-spacing:-.03em;
      margin:0;
    }
    .dash-card .t{
      color:var(--muted-2);
      font-size:.82rem;
      margin-top:5px;
    }

    /* OVERVIEW STRIP */
    .strip-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:16px;
    }
    .stat-card{
      padding:18px;
      border-radius:24px;
      background:linear-gradient(180deg, rgba(17,24,34,.86), rgba(17,24,34,.64));
      border:1px solid rgba(170,192,219,.12);
      box-shadow:var(--shadow-soft);
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
      position:relative;
      overflow:hidden;
    }
    .stat-card::after{
      content:"";
      position:absolute;
      left:16px; right:16px; top:0;
      height:2px;
      background:linear-gradient(90deg, transparent, rgba(246,185,77,.85), transparent);
      opacity:.6;
    }
    .stat-card:hover{
      transform:translateY(-3px);
      border-color:rgba(246,185,77,.22);
      box-shadow:0 20px 40px rgba(0,0,0,.24);
    }
    .stat-card .num{
      font-size:1.9rem;
      font-weight:800;
      line-height:1;
      margin:0 0 8px;
      letter-spacing:-.04em;
    }
    .stat-card .cap{
      color:var(--muted);
      font-size:.9rem;
      margin:0 0 12px;
    }
    .stat-card .mini{
      display:flex; align-items:center; gap:8px;
      color:#d9e4ef;
      font-size:.84rem;
      flex-wrap:wrap;
    }
    .stat-card .mini .badge{
      background:rgba(255,255,255,.05);
      border:1px solid rgba(170,192,219,.10);
      color:#dfe7f1;
      font-weight:700;
    }

    /* MATRIX */
    .matrix-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:16px;
    }
    .matrix-card{
      min-height:190px;
      padding:22px;
      border-radius:26px;
      background:
        linear-gradient(180deg, rgba(21,31,43,.96), rgba(17,24,34,.84));
      border:1px solid rgba(170,192,219,.12);
      box-shadow:var(--shadow-soft);
      position:relative;
      overflow:hidden;
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }
    .matrix-card:hover{
      transform:translateY(-3px);
      border-color:rgba(246,185,77,.24);
      box-shadow:0 22px 38px rgba(0,0,0,.28);
      background:
        linear-gradient(180deg, rgba(23,33,46,.98), rgba(17,24,34,.92));
    }
    .matrix-card::before{
      content:attr(data-no);
      position:absolute;
      top:18px; right:18px;
      color:rgba(246,185,77,.42);
      font-size:1.1rem;
      font-weight:900;
      letter-spacing:.08em;
    }
    .matrix-card h3{
      font-size:1.15rem;
      line-height:1.25;
      margin:6px 0 10px;
      padding-right:44px;
    }
    .matrix-card p{
      color:var(--muted);
      margin:0 0 16px;
      font-size:.95rem;
    }
    .matrix-meta{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      margin-top:auto;
      color:#dfe7f1;
      font-weight:700;
    }
    .matrix-meta .arrow{
      color:var(--accent);
      transition:transform var(--transition);
    }
    .matrix-card:hover .arrow{transform:translateX(3px)}
    .matrix-card.big{
      grid-row:span 2;
      min-height:396px;
      background:
        radial-gradient(460px 220px at 80% 10%, rgba(246,185,77,.14), transparent 58%),
        linear-gradient(180deg, rgba(21,31,43,.96), rgba(16,23,32,.90));
    }
    .matrix-big-visual{
      margin-top:18px;
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:12px;
    }
    .mini-tile{
      border-radius:20px;
      padding:14px;
      background:rgba(11,15,20,.36);
      border:1px solid rgba(170,192,219,.10);
      min-height:100px;
    }
    .mini-tile strong{display:block; font-size:1.02rem; margin-bottom:8px}
    .mini-tile span{color:var(--muted); font-size:.84rem}
    .line-pills{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:16px;
    }
    .line-pills .badge{
      background:rgba(255,255,255,.04);
      border:1px solid rgba(170,192,219,.10);
      color:#dce6f2;
      font-weight:700;
      padding:.52rem .72rem;
      border-radius:999px;
    }

    /* COMPARE */
    .compare-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:16px;
    }
    .compare-card{
      padding:22px;
      border-radius:26px;
      border:1px solid rgba(170,192,219,.12);
      background:linear-gradient(180deg, rgba(17,24,34,.88), rgba(17,24,34,.68));
      box-shadow:var(--shadow-soft);
    }
    .compare-card .topline{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
    }
    .compare-card h3{font-size:1.08rem; margin:0}
    .compare-card .score{
      color:var(--accent);
      font-weight:900;
      letter-spacing:-.03em;
    }
    .progress-wrap{margin:12px 0 14px}
    .progress{
      height:10px;
      background:rgba(255,255,255,.05);
      border-radius:999px;
      overflow:hidden;
      border:1px solid rgba(170,192,219,.08);
    }
    .progress-bar{
      background:linear-gradient(90deg, var(--accent), var(--accent-3));
      border-radius:999px;
    }
    .compare-card ul{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .compare-card li{
      color:var(--muted);
      display:flex;
      justify-content:space-between;
      gap:10px;
      padding:10px 12px;
      border-radius:14px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.08);
    }
    .compare-card li strong{color:#eaf1f8; font-weight:700}

    /* TRUST */
    .trust-grid{
      display:grid;
      grid-template-columns:repeat(5, minmax(0,1fr));
      gap:14px;
    }
    .trust-item{
      padding:18px 16px;
      border-radius:22px;
      background:rgba(17,24,34,.72);
      border:1px solid rgba(170,192,219,.12);
      box-shadow:var(--shadow-soft);
      text-align:left;
      min-height:140px;
      transition:transform var(--transition), border-color var(--transition);
    }
    .trust-item:hover{transform:translateY(-2px); border-color:rgba(246,185,77,.20)}
    .trust-item .icon{
      width:42px; height:42px; border-radius:14px;
      display:grid; place-items:center;
      margin-bottom:12px;
      background:linear-gradient(135deg, rgba(246,185,77,.18), rgba(255,138,91,.12));
      border:1px solid rgba(246,185,77,.18);
      color:var(--accent);
      font-size:1.1rem;
    }
    .trust-item strong{
      display:block; margin-bottom:8px; font-size:1rem;
    }
    .trust-item p{
      color:var(--muted);
      margin:0;
      font-size:.88rem;
      line-height:1.65;
    }

    /* LATEST */
    .latest-grid{
      display:grid;
      grid-template-columns: 1.42fr .58fr;
      gap:16px;
    }
    .latest-list{
      display:grid;
      gap:14px;
    }
    .post-card{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:14px;
      align-items:start;
      padding:18px;
      border-radius:22px;
      background:linear-gradient(180deg, rgba(17,24,34,.88), rgba(17,24,34,.66));
      border:1px solid rgba(170,192,219,.12);
      box-shadow:var(--shadow-soft);
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .post-card:hover{
      transform:translateY(-2px);
      border-color:rgba(246,185,77,.24);
      box-shadow:0 20px 34px rgba(0,0,0,.25);
    }
    .post-index{
      width:38px; height:38px;
      border-radius:14px;
      display:grid; place-items:center;
      background:rgba(246,185,77,.10);
      border:1px solid rgba(246,185,77,.18);
      color:var(--accent);
      font-weight:900;
      flex:0 0 auto;
    }
    .post-content h3{
      margin:0 0 8px;
      font-size:1.03rem;
      line-height:1.35;
      letter-spacing:-.02em;
    }
    .post-content h3 a{color:var(--text)}
    .post-content h3 a:hover{color:var(--accent)}
    .post-content p{
      margin:0 0 12px;
      color:var(--muted);
      font-size:.94rem;
      line-height:1.7;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .post-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px 10px;
      align-items:center;
      color:var(--muted-2);
      font-size:.83rem;
    }
    .post-meta .badge{
      background:rgba(255,255,255,.04);
      border:1px solid rgba(170,192,219,.10);
      color:#dfe7f1;
      font-weight:700;
    }
    .post-arrow{
      color:var(--accent);
      margin-top:3px;
      font-size:1.05rem;
      transition:transform var(--transition);
    }
    .post-card:hover .post-arrow{transform:translateX(3px)}
    .latest-side{
      display:grid;
      gap:14px;
    }
    .side-box{
      padding:20px;
      border-radius:24px;
      background:linear-gradient(180deg, rgba(21,31,43,.95), rgba(17,24,34,.78));
      border:1px solid rgba(170,192,219,.12);
      box-shadow:var(--shadow-soft);
    }
    .side-box h3{
      font-size:1rem;
      margin:0 0 12px;
    }
    .tag-cloud{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .tag-cloud .badge{
      padding:.62rem .8rem;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(170,192,219,.10);
      color:#dce6f2;
      font-weight:700;
      font-size:.84rem;
    }
    .list-notes{
      display:grid; gap:12px;
      margin:0; padding:0;
      list-style:none;
    }
    .list-notes li{
      display:flex; align-items:flex-start; gap:10px;
      color:var(--muted);
      font-size:.92rem;
      padding:11px 12px;
      border-radius:16px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.08);
    }
    .list-notes i{color:var(--accent); margin-top:2px}

    .empty-state{
      padding:24px;
      border-radius:22px;
      border:1px dashed rgba(170,192,219,.18);
      color:#b7c3d2;
      background:rgba(255,255,255,.02);
      text-align:center;
      min-height:176px;
      display:grid;
      place-items:center;
    }

    /* FAQ */
    .faq-wrap{
      display:grid;
      grid-template-columns: 1fr;
      gap:12px;
    }
    details.faq-item{
      border-radius:20px;
      border:1px solid rgba(170,192,219,.12);
      background:linear-gradient(180deg, rgba(17,24,34,.86), rgba(17,24,34,.68));
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      transition:border-color var(--transition), transform var(--transition);
    }
    details.faq-item:hover{border-color:rgba(246,185,77,.18); transform:translateY(-1px)}
    details.faq-item[open]{border-color:rgba(246,185,77,.24)}
    details.faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      font-weight:800;
      color:#eef4fa;
      outline:none;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    details.faq-item summary .toggle{
      width:30px; height:30px;
      border-radius:999px;
      display:grid; place-items:center;
      border:1px solid rgba(170,192,219,.12);
      background:rgba(255,255,255,.03);
      color:var(--accent);
      flex:0 0 auto;
      transition:transform var(--transition), background var(--transition), border-color var(--transition);
    }
    details.faq-item[open] summary .toggle{
      transform:rotate(45deg);
      background:rgba(246,185,77,.10);
      border-color:rgba(246,185,77,.20);
    }
    .faq-body{
      padding:0 20px 18px;
      color:var(--muted);
      font-size:.95rem;
    }

    /* CTA / CONTACT */
    .cta-grid{
      display:grid;
      grid-template-columns: .95fr 1.05fr;
      gap:16px;
    }
    .cta-panel,
    .form-panel{
      padding:24px;
      border-radius:28px;
      background:
        radial-gradient(460px 220px at 100% 0%, rgba(246,185,77,.12), transparent 54%),
        linear-gradient(180deg, rgba(17,24,34,.92), rgba(17,24,34,.70));
      border:1px solid rgba(170,192,219,.12);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .cta-panel h2{
      font-size:1.7rem;
      line-height:1.2;
      margin:0 0 14px;
      letter-spacing:-.03em;
    }
    .cta-panel p{
      color:var(--muted);
      margin:0 0 16px;
    }
    .cta-badges{
      display:flex; flex-wrap:wrap; gap:10px;
      margin:18px 0 0;
    }
    .cta-badges .badge{
      background:rgba(255,255,255,.04);
      border:1px solid rgba(170,192,219,.10);
      color:#dbe6f1;
      font-weight:700;
      padding:.7rem .8rem;
      border-radius:999px;
    }
    .form-panel .form-label{
      color:#dce6f2;
      font-weight:700;
      margin-bottom:8px;
    }
    .form-control, .form-select{
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.14);
      color:var(--text);
      border-radius:16px;
      min-height:54px;
      box-shadow:none;
    }
    .form-control::placeholder{color:#73879f}
    .form-control:focus, .form-select:focus{
      background:rgba(255,255,255,.04);
      color:var(--text);
      border-color:rgba(246,185,77,.45);
      box-shadow:0 0 0 .2rem rgba(246,185,77,.10);
    }
    textarea.form-control{min-height:126px; border-radius:18px; padding-top:14px}
    .form-note{
      color:var(--muted-2);
      font-size:.86rem;
      margin-top:10px;
    }
    .checkline{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:.92rem;
      margin-top:14px;
    }
    .checkline input{
      width:18px; height:18px;
      accent-color:var(--accent);
    }

    /* FOOTER */
    footer{
      padding:22px 0 34px;
    }
    .footer-wrap{
      padding:26px;
      border-radius:28px;
      border:1px solid rgba(170,192,219,.12);
      background:linear-gradient(180deg, rgba(10,14,20,.95), rgba(17,24,34,.82));
      box-shadow:var(--shadow-soft);
    }
    .footer-top{
      display:grid;
      grid-template-columns: 1fr auto;
      gap:18px;
      align-items:start;
      padding-bottom:18px;
      border-bottom:1px solid rgba(170,192,219,.10);
      margin-bottom:18px;
    }
    .footer-brand{
      display:flex; align-items:center; gap:12px;
      margin-bottom:10px;
    }
    .footer-brand strong{font-size:1.05rem}
    .footer-desc{
      color:var(--muted);
      max-width:68ch;
      margin:0;
      font-size:.94rem;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-end;
    }
    .footer-links a{
      color:#dce6f2;
      font-weight:700;
      padding:10px 14px;
      border-radius:999px;
      border:1px solid rgba(170,192,219,.12);
      background:rgba(255,255,255,.03);
    }
    .footer-links a:hover{border-color:rgba(246,185,77,.24); color:#fff}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      color:var(--muted-2);
      font-size:.88rem;
    }
    .footer-bottom a{color:#dce6f2}
    .footer-bottom a:hover{color:var(--accent)}
    .copyright-line{display:flex; gap:10px; flex-wrap:wrap; align-items:center}

    /* OFFCANVAS / COLLAPSE */
    .navbar-collapse{
      margin-top:14px;
      padding:14px;
      border-radius:24px;
      border:1px solid rgba(170,192,219,.12);
      background:rgba(12,17,24,.95);
      box-shadow:var(--shadow-soft);
    }

    /* RESPONSIVE */
    @media (max-width: 1199.98px){
      .hero-grid,
      .latest-grid,
      .cta-grid{grid-template-columns:1fr}
      .trust-grid{grid-template-columns:repeat(3, minmax(0,1fr))}
      .matrix-grid{grid-template-columns:1fr 1fr}
      .matrix-card.big{grid-row:auto; min-height:260px}
      .strip-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
    }
    @media (max-width: 991.98px){
      .nav-wrap{
        border-radius:24px;
        margin-top:12px;
        padding:10px;
      }
      .navbar .nav-link{padding:10px 13px !important}
      .hero-panel{padding:22px}
      .section-head{flex-direction:column; align-items:flex-start}
      .compare-grid{grid-template-columns:1fr}
      .trust-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
    }
    @media (max-width: 767.98px){
      main{padding-top:12px}
      .hero h1{max-width:100%}
      .hero-search{grid-template-columns:1fr}
      .dash-grid{grid-template-columns:1fr}
      .strip-grid,
      .matrix-grid,
      .trust-grid{grid-template-columns:1fr}
      .post-card{grid-template-columns:auto 1fr; }
      .post-arrow{display:none}
      .footer-top{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
      .section{padding:14px 0}
    }
    @media (max-width: 519.98px){
      .navbar{padding:12px 0}
      .navbar-brand{gap:10px}
      .brand-text{font-size:.96rem}
      .brand-sub{font-size:.7rem}
      .hero-panel,
      .section-block,
      .footer-wrap,
      .cta-panel,
      .form-panel{
        border-radius:22px;
      }
      .hero-panel{padding:18px}
      .hero-actions .btn{width:100%}
      .hero-stats-inline{gap:10px}
      .mini-stat{min-width:100%; flex-basis:100%}
      .post-card{grid-template-columns:1fr}
      .post-index{width:34px; height:34px}
      details.faq-item summary{padding:16px}
      .faq-body{padding:0 16px 16px}
    }

/* roulang page: article */
:root{
      --bg: #0b0f14;
      --bg-soft: #0f141b;
      --surface: #111822;
      --surface-2: #151f2b;
      --line: rgba(170, 192, 219, .14);
      --line-strong: rgba(246, 185, 77, .35);
      --text: #eaf1f8;
      --muted: #9aabc0;
      --muted-2: #7a8ca3;
      --accent: #f6b94d;
      --accent-2: #5dd6c7;
      --accent-3: #ff8a5b;
      --shadow: 0 18px 60px rgba(0, 0, 0, .38);
      --shadow-soft: 0 10px 30px rgba(0, 0, 0, .22);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1180px;
      --gap: 24px;
      --transition: 180ms ease;
    }

    html{scroll-behavior:smooth}
    *{box-sizing:border-box}
    body{
      margin:0;
      min-height:100vh;
      font-family: Inter, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background:
        radial-gradient(1100px 500px at 10% -10%, rgba(246,185,77,.14), transparent 56%),
        radial-gradient(900px 460px at 92% 8%, rgba(93,214,199,.10), transparent 55%),
        linear-gradient(180deg, #0b0f14 0%, #0c1117 46%, #0a0e13 100%);
      color:var(--text);
      line-height:1.7;
      overflow-x:hidden;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }
    ::selection{background:rgba(246,185,77,.28);color:#fff}
    img{max-width:100%;display:block}
    a{color:inherit;text-decoration:none;transition:color var(--transition), transform var(--transition), opacity var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition)}
    a:hover{color:var(--accent)}
    button,input,select,textarea{font:inherit}
    .container-xxl{max-width:var(--container)}
    .visually-hidden-focusable:focus, .visually-hidden-focusable:focus-within{
      position:static!important; width:auto!important; height:auto!important; margin:0!important; overflow:visible!important; clip:auto!important; white-space:normal!important;
    }

    .site-nav{
      position:sticky;
      top:0;
      z-index:1020;
      backdrop-filter: blur(14px);
      background: linear-gradient(180deg, rgba(8,12,18,.88), rgba(8,12,18,.62));
      border-bottom:1px solid rgba(170, 192, 219, .10);
    }
    .navbar{padding:14px 0}
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:var(--text) !important;
      font-weight:800;
      letter-spacing:.2px;
      white-space:nowrap;
    }
    .brand-mark{
      width:38px;
      height:38px;
      border-radius:14px;
      background: linear-gradient(145deg, rgba(246,185,77,.95), rgba(255,138,91,.85));
      box-shadow: 0 10px 24px rgba(246,185,77,.18), inset 0 1px 0 rgba(255,255,255,.28);
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:10px;
      border:1.5px solid rgba(11,15,20,.55);
      border-radius:10px;
    }
    .brand-mark::after{
      inset:14px 10px 10px 14px;
      border-radius:8px;
    }
    .brand-text{font-size:1rem; line-height:1.1}
    .brand-sub{display:block; font-size:.72rem; color:var(--muted); font-weight:600; margin-top:2px}
    .nav-wrap{
      gap:10px;
      padding:8px 12px;
      border:1px solid rgba(170,192,219,.10);
      border-radius:999px;
      background: rgba(17,24,34,.72);
      box-shadow: var(--shadow-soft);
    }
    .navbar .nav-link{
      position:relative;
      color:var(--muted);
      font-weight:600;
      font-size:.95rem;
      padding:10px 15px !important;
      border-radius:999px;
      transition: transform var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition);
    }
    .navbar .nav-link:hover,
    .navbar .nav-link:focus{
      color:#fff;
      background:rgba(255,255,255,.03);
    }
    .navbar .nav-link.active,
    .navbar .nav-link[aria-current="page"]{
      color:#101319;
      background:linear-gradient(135deg, rgba(246,185,77,1), rgba(255,161,89,1));
      box-shadow: 0 10px 22px rgba(246,185,77,.16);
    }
    .navbar-toggler{
      border:1px solid rgba(170,192,219,.16) !important;
      color:var(--text) !important;
      background:rgba(17,24,34,.7);
      border-radius:14px;
      padding:.65rem .78rem;
      box-shadow:none;
    }
    .navbar-toggler:focus{box-shadow:0 0 0 .2rem rgba(246,185,77,.16)}
    .navbar-toggler-icon{
      background-image:none !important;
      width:1.1em;
      height:1.1em;
      position:relative;
      display:inline-block;
    }
    .navbar-toggler-icon::before,
    .navbar-toggler-icon::after,
    .navbar-toggler-icon span{
      content:"";
      position:absolute;
      left:0;
      right:0;
      height:2px;
      border-radius:2px;
      background:currentColor;
      transition:transform var(--transition), top var(--transition), bottom var(--transition), opacity var(--transition);
    }
    .navbar-toggler-icon::before{top:1px}
    .navbar-toggler-icon::after{bottom:1px}
    .navbar-toggler-icon span{top:50%; transform:translateY(-50%)}
    .nav-cta{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:.9rem;
      padding:10px 14px;
      border-radius:999px;
      background:rgba(17,24,34,.58);
      border:1px solid rgba(170,192,219,.12);
    }
    .nav-cta i{color:var(--accent)}

    .btn{
      border-radius:999px;
      font-weight:700;
      padding:.85rem 1.2rem;
      border:1px solid transparent;
      transition:transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition);
    }
    .btn:hover{transform:translateY(-1px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible{
      box-shadow:0 0 0 .2rem rgba(246,185,77,.18) !important;
    }
    .btn-primary{
      background:linear-gradient(135deg, var(--accent), var(--accent-3));
      color:#0d1117;
      box-shadow:0 14px 30px rgba(246,185,77,.15);
      border-color:rgba(255,255,255,.08);
    }
    .btn-primary:hover,
    .btn-primary:focus{
      color:#0b0f14;
      box-shadow:0 18px 38px rgba(246,185,77,.22);
      background:linear-gradient(135deg, #ffc864, #ff9b67);
    }
    .btn-outline-light{
      border-color:rgba(170,192,219,.18);
      color:var(--text);
      background:rgba(255,255,255,.02);
      box-shadow:none;
    }
    .btn-outline-light:hover,
    .btn-outline-light:focus{
      background:rgba(255,255,255,.05);
      color:#fff;
      border-color:rgba(246,185,77,.30);
    }
    .btn-dark-soft{
      background:rgba(21,31,43,.78);
      color:var(--text);
      border-color:rgba(170,192,219,.12);
    }
    .btn-dark-soft:hover{
      border-color:rgba(246,185,77,.30);
      background:rgba(21,31,43,.98);
      color:#fff;
    }

    main{padding:24px 0 14px}
    .section{padding:18px 0; position:relative}
    .section-tight{padding-top:12px}
    .section-block,
    .content-panel,
    .info-card,
    .feature-card,
    .result-card,
    .faq-card,
    .cta-card,
    .related-card,
    .empty-state,
    .hero-shell{
      background: linear-gradient(180deg, rgba(17,24,34,.74), rgba(17,24,34,.52));
      border:1px solid rgba(170,192,219,.12);
      border-radius:var(--radius-xl);
      box-shadow: var(--shadow);
    }
    .section-block{padding:28px}
    .panel-soft{
      background: linear-gradient(180deg, rgba(21,31,43,.84), rgba(17,24,34,.72));
      border:1px solid rgba(170,192,219,.11);
      border-radius:var(--radius-lg);
      box-shadow: var(--shadow-soft);
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-size:.84rem;
      color:#14171d;
      background:linear-gradient(135deg, #f7c963, #ff9c68);
      padding:8px 14px;
      border-radius:999px;
      font-weight:800;
      letter-spacing:.2px;
      box-shadow:0 12px 28px rgba(246,185,77,.14);
    }
    .eyebrow i{font-size:.9rem}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:16px;
      margin-bottom:18px;
    }
    .section-title{
      margin:0;
      font-size:1.45rem;
      line-height:1.25;
      letter-spacing:-.02em;
      font-weight:800;
    }
    .section-desc{
      margin:.55rem 0 0;
      color:var(--muted);
      font-size:.98rem;
      max-width:64ch;
    }
    .section-meta{
      color:var(--muted-2);
      font-size:.9rem;
      white-space:nowrap;
    }

    .article-hero{padding-top:8px}
    .hero-shell{
      position:relative;
      overflow:hidden;
      padding:28px;
      isolation:isolate;
    }
    .hero-shell::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(580px 240px at 18% 0%, rgba(246,185,77,.16), transparent 56%),
        radial-gradient(520px 220px at 92% 10%, rgba(93,214,199,.12), transparent 56%);
      opacity:.95;
      z-index:-1;
    }
    .hero-shell::after{
      content:"";
      position:absolute;
      inset:auto 0 0 0;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(246,185,77,.52), rgba(93,214,199,.32), transparent);
      opacity:.8;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0, 1.35fr) minmax(320px, .95fr);
      gap:24px;
      align-items:stretch;
    }
    .hero-kicker{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      margin-bottom:14px;
    }
    .hero-badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(246,185,77,.12);
      border:1px solid rgba(246,185,77,.22);
      color:#ffd58a;
      font-size:.83rem;
      font-weight:700;
    }
    .hero-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(93,214,199,.10);
      border:1px solid rgba(93,214,199,.18);
      color:#c6fff8;
      font-size:.83rem;
      font-weight:700;
    }
    .article-title{
      margin:0;
      font-size:clamp(2rem, 4vw, 3.55rem);
      line-height:1.06;
      letter-spacing:-.04em;
      font-weight:900;
      max-width:11ch;
    }
    .hero-subtitle{
      margin:16px 0 0;
      color:var(--muted);
      font-size:1rem;
      max-width:60ch;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:22px;
    }
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .meta-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      border-radius:999px;
      padding:8px 12px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.12);
      color:var(--muted);
      font-size:.88rem;
    }
    .meta-pill i{color:var(--accent)}
    .hero-side{
      display:grid;
      gap:14px;
      align-content:start;
    }
    .hero-visual{
      padding:18px;
      min-height:236px;
      position:relative;
      overflow:hidden;
    }
    .hero-visual::before{
      content:"";
      position:absolute;
      inset:16px;
      border-radius:20px;
      border:1px solid rgba(170,192,219,.12);
      background:
        linear-gradient(135deg, rgba(255,255,255,.04), rgba(255,255,255,.01)),
        radial-gradient(180px 120px at 80% 20%, rgba(246,185,77,.20), transparent 58%),
        radial-gradient(140px 100px at 16% 78%, rgba(93,214,199,.12), transparent 60%);
    }
    .hero-visual-inner{
      position:relative;
      z-index:1;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      height:100%;
      min-height:198px;
    }
    .cover-mark{
      width:64px;
      height:64px;
      border-radius:22px;
      background:linear-gradient(145deg, rgba(246,185,77,.95), rgba(255,138,91,.86));
      box-shadow:0 16px 34px rgba(246,185,77,.18);
      position:relative;
    }
    .cover-mark::before,
    .cover-mark::after{
      content:"";
      position:absolute;
      border:1.8px solid rgba(11,15,20,.55);
      border-radius:14px;
    }
    .cover-mark::before{inset:14px}
    .cover-mark::after{inset:22px 14px 14px 22px;border-radius:11px}
    .hero-mini-title{
      margin:16px 0 8px;
      font-size:1.05rem;
      font-weight:800;
      letter-spacing:-.02em;
    }
    .hero-mini-desc{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
      max-width:28ch;
    }
    .hero-metric-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0, 1fr));
      gap:14px;
    }
    .metric-card{
      padding:18px 18px 16px;
      min-height:112px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      position:relative;
      overflow:hidden;
      transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .metric-card::after{
      content:"";
      position:absolute;
      inset:auto 16px 0 16px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg, rgba(246,185,77,.0), rgba(246,185,77,.85), rgba(93,214,199,.65), rgba(246,185,77,.0));
      opacity:.7;
    }
    .metric-card:hover{
      transform:translateY(-2px);
      border-color:rgba(246,185,77,.26);
      box-shadow:0 18px 36px rgba(0,0,0,.26);
    }
    .metric-label{
      color:var(--muted);
      font-size:.84rem;
      display:flex;
      align-items:center;
      gap:8px;
    }
    .metric-label i{color:var(--accent)}
    .metric-value{
      font-size:1.45rem;
      font-weight:900;
      line-height:1;
      margin-top:8px;
      letter-spacing:-.03em;
    }
    .metric-note{
      margin-top:8px;
      color:var(--muted-2);
      font-size:.86rem;
    }

    .article-layout{
      display:grid;
      grid-template-columns:minmax(0, 1.35fr) 340px;
      gap:24px;
      align-items:start;
      margin-top:24px;
    }
    .article-content{
      padding:24px;
    }
    .content-header{
      display:flex;
      flex-direction:column;
      gap:12px;
      margin-bottom:18px;
    }
    .content-title-row{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }
    .content-title{
      margin:0;
      font-size:1.32rem;
      font-weight:800;
      letter-spacing:-.03em;
    }
    .content-summary{
      padding:16px 18px;
      border-radius:20px;
      background:linear-gradient(180deg, rgba(246,185,77,.08), rgba(246,185,77,.03));
      border:1px solid rgba(246,185,77,.16);
      color:#f0e0bb;
      position:relative;
    }
    .content-summary::before{
      content:"摘要";
      display:inline-flex;
      padding:4px 10px;
      border-radius:999px;
      background:rgba(246,185,77,.15);
      border:1px solid rgba(246,185,77,.18);
      color:#ffd88a;
      font-size:.78rem;
      font-weight:800;
      margin-bottom:10px;
    }
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      color:var(--muted);
      font-size:.9rem;
    }
    .article-meta .meta-item{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.12);
    }
    .article-meta i{color:var(--accent)}
    .article-prose{
      color:#dbe6f2;
      font-size:1.02rem;
      line-height:1.92;
    }
    .article-prose :is(p, ul, ol, blockquote, pre, figure, table){
      margin-bottom:1rem;
    }
    .article-prose :is(h2, h3, h4){
      margin:1.6rem 0 .85rem;
      line-height:1.28;
      letter-spacing:-.02em;
      font-weight:800;
      color:#fff;
    }
    .article-prose h2{font-size:1.34rem}
    .article-prose h3{font-size:1.15rem}
    .article-prose p{color:#d8e1eb}
    .article-prose a{
      color:#ffd88a;
      text-decoration:underline;
      text-underline-offset:3px;
    }
    .article-prose a:hover{color:#fff}
    .article-prose img{
      border-radius:18px;
      margin:18px 0;
      box-shadow:var(--shadow-soft);
      border:1px solid rgba(170,192,219,.12);
    }
    .article-prose blockquote{
      padding:16px 18px;
      border-left:3px solid var(--accent);
      border-radius:16px;
      background:rgba(255,255,255,.03);
      color:#e8f0f8;
    }
    .article-prose pre{
      padding:18px;
      border-radius:18px;
      background:#0a0f14;
      border:1px solid rgba(170,192,219,.12);
      overflow:auto;
      color:#dbe6f2;
    }
    .article-prose code{
      background:rgba(255,255,255,.06);
      color:#ffd98f;
      border-radius:8px;
      padding:.15rem .35rem;
    }
    .article-prose ul, .article-prose ol{padding-left:1.2rem}
    .article-prose li::marker{color:var(--accent)}
    .article-prose hr{
      border:0;
      border-top:1px solid rgba(170,192,219,.14);
      margin:1.5rem 0;
    }

    .sidebar{
      display:grid;
      gap:16px;
      position:sticky;
      top:96px;
    }
    .sidebar-card{
      padding:20px;
    }
    .sidebar-title{
      margin:0 0 12px;
      font-size:1rem;
      font-weight:800;
      letter-spacing:-.02em;
    }
    .sidebar-desc{
      margin:0 0 14px;
      color:var(--muted);
      font-size:.92rem;
    }
    .tag-list{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.12);
      color:var(--muted);
      font-size:.86rem;
      transition:transform var(--transition), border-color var(--transition), background var(--transition), color var(--transition);
    }
    .tag:hover{
      transform:translateY(-1px);
      color:#fff;
      border-color:rgba(246,185,77,.24);
      background:rgba(246,185,77,.08);
    }
    .quick-list{
      display:grid;
      gap:10px;
    }
    .quick-link{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:13px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.12);
      color:var(--text);
      transition:transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .quick-link:hover{
      transform:translateY(-1px);
      background:rgba(255,255,255,.05);
      border-color:rgba(246,185,77,.22);
      box-shadow:0 14px 26px rgba(0,0,0,.18);
      color:#fff;
    }
    .quick-link small{color:var(--muted)}
    .quick-link i{color:var(--accent)}
    .mini-stats{
      display:grid;
      gap:12px;
    }
    .mini-stat{
      padding:14px 15px;
      border-radius:16px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.12);
    }
    .mini-stat b{
      display:block;
      font-size:.98rem;
      margin-bottom:4px;
      letter-spacing:-.02em;
    }
    .mini-stat span{
      color:var(--muted);
      font-size:.86rem;
    }

    .related-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:16px;
    }
    .related-card{
      padding:18px;
      position:relative;
      overflow:hidden;
      min-height:160px;
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .related-card::before{
      content:"";
      position:absolute;
      inset:auto 18px 18px 18px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg, rgba(246,185,77,.0), rgba(246,185,77,.88), rgba(93,214,199,.68), rgba(246,185,77,.0));
      opacity:.65;
    }
    .related-card:hover{
      transform:translateY(-2px);
      border-color:rgba(246,185,77,.24);
    }
    .card-index{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:34px;
      height:34px;
      border-radius:12px;
      background:rgba(246,185,77,.14);
      border:1px solid rgba(246,185,77,.18);
      color:#ffd88a;
      font-weight:800;
      margin-bottom:14px;
    }
    .related-title{
      margin:0 0 8px;
      font-size:1.02rem;
      font-weight:800;
      line-height:1.35;
      letter-spacing:-.02em;
    }
    .related-desc{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }
    .related-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-top:14px;
      color:#ffd88a;
      font-weight:700;
    }

    .faq-accordion .accordion-item{
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.12);
      border-radius:18px !important;
      overflow:hidden;
      margin-bottom:12px;
      box-shadow:none;
    }
    .faq-accordion .accordion-button{
      background:transparent;
      color:var(--text);
      box-shadow:none !important;
      font-weight:800;
      padding:18px 20px;
      gap:14px;
    }
    .faq-accordion .accordion-button::after{
      background-image:none !important;
      content:"+";
      width:auto;
      height:auto;
      font-size:1.2rem;
      line-height:1;
      color:var(--accent);
      font-weight:900;
      margin-left:auto;
      transform:none !important;
    }
    .faq-accordion .accordion-button:not(.collapsed){
      background:rgba(246,185,77,.06);
      color:#fff;
      border-bottom:1px solid rgba(170,192,219,.10);
      box-shadow:none;
    }
    .faq-accordion .accordion-button:not(.collapsed)::after{
      content:"−";
      color:#fff;
    }
    .faq-accordion .accordion-body{
      color:var(--muted);
      padding:18px 20px 20px;
      background:rgba(0,0,0,.06);
    }

    .cta-card{
      padding:24px;
      overflow:hidden;
      position:relative;
    }
    .cta-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(460px 180px at 18% 0%, rgba(246,185,77,.15), transparent 56%),
        radial-gradient(360px 160px at 92% 18%, rgba(93,214,199,.10), transparent 55%);
      pointer-events:none;
    }
    .cta-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0, 1fr) 380px;
      gap:18px;
      align-items:center;
    }
    .cta-title{
      margin:0;
      font-size:1.35rem;
      font-weight:900;
      letter-spacing:-.03em;
      line-height:1.2;
    }
    .cta-text{
      margin:10px 0 0;
      color:var(--muted);
      max-width:58ch;
    }
    .cta-badges{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:16px;
    }
    .cta-form{
      display:grid;
      gap:10px;
      padding:18px;
      border-radius:22px;
      background:rgba(8,12,18,.28);
      border:1px solid rgba(170,192,219,.10);
    }
    .form-label{
      color:var(--muted);
      font-size:.9rem;
      margin-bottom:0;
    }
    .form-control{
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.14);
      color:var(--text);
      border-radius:14px;
      padding:.85rem 1rem;
      transition:border-color var(--transition), box-shadow var(--transition), background var(--transition), transform var(--transition);
    }
    .form-control::placeholder{color:#6f8097}
    .form-control:focus{
      background:rgba(255,255,255,.05);
      border-color:rgba(246,185,77,.36);
      box-shadow:0 0 0 .2rem rgba(246,185,77,.12);
      color:#fff;
    }
    .form-text{
      color:var(--muted-2) !important;
      margin-top:0;
      font-size:.82rem;
    }
    .form-check-input{
      background-color:rgba(255,255,255,.05);
      border-color:rgba(170,192,219,.18);
      box-shadow:none !important;
    }
    .form-check-input:checked{
      background-color:var(--accent);
      border-color:var(--accent);
    }
    .form-check-label{color:var(--muted); font-size:.9rem}
    .submit-row{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      margin-top:4px;
    }

    .empty-state{
      padding:56px 24px;
      text-align:center;
    }
    .empty-icon{
      width:72px;
      height:72px;
      margin:0 auto 18px;
      border-radius:24px;
      background:linear-gradient(145deg, rgba(246,185,77,.18), rgba(93,214,199,.10));
      border:1px solid rgba(246,185,77,.18);
      display:grid;
      place-items:center;
      color:#ffd88a;
      font-size:1.5rem;
      box-shadow:0 18px 34px rgba(0,0,0,.18);
    }
    .empty-state h1{
      margin:0;
      font-size:1.6rem;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .empty-state p{
      margin:12px auto 0;
      max-width:44ch;
      color:var(--muted);
    }

    footer{
      padding:18px 0 34px;
      margin-top:8px;
    }
    .footer-wrap{
      padding:26px;
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg, rgba(17,24,34,.82), rgba(11,15,20,.92));
      border:1px solid rgba(170,192,219,.12);
      box-shadow: var(--shadow);
    }
    .footer-top{
      display:flex;
      justify-content:space-between;
      gap:24px;
      align-items:flex-start;
      padding-bottom:18px;
      border-bottom:1px solid rgba(170,192,219,.10);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:12px;
      color:#fff;
    }
    .footer-brand strong{font-size:1.05rem}
    .footer-desc{
      margin:0;
      color:var(--muted);
      max-width:60ch;
      font-size:.95rem;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-end;
    }
    .footer-links a{
      padding:10px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.10);
      color:var(--muted);
      font-size:.92rem;
    }
    .footer-links a:hover{
      color:#fff;
      border-color:rgba(246,185,77,.20);
      background:rgba(246,185,77,.07);
    }
    .footer-bottom{
      padding-top:18px;
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:10px 16px;
      color:var(--muted-2);
      font-size:.86rem;
    }
    .copyright-line{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
    }

    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(170,192,219,.12);
      color:var(--muted);
      font-size:.83rem;
    }

    .divider-line{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(170,192,219,.12), transparent);
      margin:18px 0;
    }

    .focus-ring:focus-visible{
      outline:none;
      box-shadow:0 0 0 .2rem rgba(246,185,77,.18);
    }

    @media (max-width: 1199.98px){
      .hero-grid,
      .article-layout,
      .cta-inner{
        grid-template-columns:1fr;
      }
      .sidebar{
        position:static;
      }
      .related-grid{
        grid-template-columns:repeat(2, minmax(0,1fr));
      }
    }
    @media (max-width: 991.98px){
      .nav-wrap{
        width:100%;
        margin-top:14px;
        padding:14px;
        border-radius:22px;
        flex-direction:column !important;
        align-items:stretch !important;
      }
      .navbar-collapse{
        width:100%;
      }
      .nav-cta{
        display:none !important;
      }
      .hero-shell,
      .section-block,
      .content-panel,
      .cta-card,
      .footer-wrap,
      .hero-visual,
      .sidebar-card,
      .related-card{
        border-radius:22px;
      }
      .hero-metric-grid{
        grid-template-columns:repeat(2, minmax(0, 1fr));
      }
      .article-title{
        max-width:14ch;
      }
    }
    @media (max-width: 767.98px){
      main{padding-top:18px}
      .hero-shell,
      .section-block,
      .content-panel,
      .cta-card,
      .footer-wrap{
        padding:20px;
      }
      .hero-grid,
      .article-layout{
        gap:18px;
      }
      .hero-metric-grid,
      .related-grid{
        grid-template-columns:1fr;
      }
      .section-head{
        flex-direction:column;
        align-items:flex-start;
      }
      .footer-top{
        flex-direction:column;
      }
      .footer-links{
        justify-content:flex-start;
      }
      .article-title{
        font-size:clamp(1.8rem, 8vw, 2.55rem);
      }
      .hero-actions{
        flex-direction:column;
      }
      .hero-actions .btn{
        width:100%;
      }
      .submit-row .btn{
        width:100%;
      }
    }
    @media (max-width: 575.98px){
      .navbar-brand{
        gap:10px;
      }
      .brand-text{
        font-size:.96rem;
      }
      .brand-sub{
        font-size:.69rem;
      }
      .hero-badge,
      .hero-pill,
      .meta-pill,
      .badge-soft,
      .tag,
      .quick-link,
      .footer-links a{
        font-size:.8rem;
      }
      .article-content,
      .sidebar-card{
        padding:18px;
      }
      .content-summary{
        padding:14px 15px;
      }
      .cta-form{
        padding:14px;
      }
      .faq-accordion .accordion-button,
      .faq-accordion .accordion-body{
        padding-left:16px;
        padding-right:16px;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}