/* roulang page: index */
:root{
      --bg: #f8fafc;
      --surface: #ffffff;
      --surface-soft: #f1f8ff;
      --primary: #2563eb;
      --primary-strong: #1d4ed8;
      --accent: #f59e0b;
      --accent-2: #f97316;
      --text: #0f172a;
      --muted: #475569;
      --weak: #94a3b8;
      --line: rgba(148,163,184,.22);
      --shadow: 0 18px 45px rgba(15, 23, 42, .08);
      --shadow-sm: 0 10px 28px rgba(15, 23, 42, .06);
      --radius-xl: 24px;
      --radius-lg: 18px;
      --radius-md: 14px;
      --container: 1220px;
      --ring: 0 0 0 2px rgba(37, 99, 235, .18);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at 20% 0%, rgba(37,99,235,.07), transparent 28%),
        radial-gradient(circle at 85% 10%, rgba(14,165,233,.05), transparent 24%),
        linear-gradient(180deg, #ffffff 0%, #f8fafc 38%, #f8fafc 100%);
      font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      line-height:1.75;
      overflow-x:hidden;
      padding-bottom: 96px;
    }

    ::selection{ background: rgba(37,99,235,.16); color: var(--text); }
    img{ max-width:100%; display:block; }
    a{ color:inherit; text-decoration:none; transition: color .2s ease, opacity .2s ease, transform .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease; }
    button, input, textarea, select{
      font: inherit;
    }
    button{
      cursor:pointer;
    }
    :focus-visible{
      outline: none;
      box-shadow: var(--ring);
    }

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

    .section-pad{
      padding: 88px 0;
    }

    .section-title{
      font-size: clamp(28px, 4vw, 38px);
      line-height:1.15;
      letter-spacing:-0.03em;
      font-weight:800;
      color:var(--text);
    }

    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:.5rem;
      font-size:12px;
      font-weight:700;
      letter-spacing:.16em;
      text-transform:uppercase;
      color: var(--primary);
      background: rgba(37,99,235,.08);
      border:1px solid rgba(37,99,235,.16);
      border-radius: 999px;
      padding: .45rem .8rem;
    }

    .section-copy{
      color:var(--muted);
      font-size: 17px;
      line-height:1.85;
      max-width: 66ch;
    }

    .glass-line{
      background: rgba(255,255,255,.82);
      border: 1px solid rgba(148,163,184,.18);
      backdrop-filter: blur(10px);
      box-shadow: var(--shadow-sm);
    }

    .card{
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow);
    }

    .card-soft{
      background: linear-gradient(180deg, rgba(255,255,255,.94), rgba(248,250,252,.96));
      border: 1px solid rgba(148,163,184,.18);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-sm);
    }

    .mini-card{
      background:#fff;
      border: 1px solid rgba(148,163,184,.18);
      border-radius: 20px;
      box-shadow: 0 14px 30px rgba(15, 23, 42, .05);
    }

    .badge{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      font-size:12px;
      font-weight:700;
      color: var(--primary);
      background: rgba(37,99,235,.08);
      border:1px solid rgba(37,99,235,.16);
      border-radius:999px;
      padding:.38rem .7rem;
      white-space:nowrap;
    }

    .badge-accent{
      color: #a16207;
      background: rgba(245,158,11,.12);
      border-color: rgba(245,158,11,.18);
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.55rem;
      min-height: 48px;
      padding: .9rem 1.35rem;
      border-radius: 999px;
      font-weight: 700;
      border: 1px solid transparent;
      transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease, color .18s ease, opacity .18s ease;
      will-change: transform;
    }
    .btn:hover{ transform: translateY(-1px); box-shadow: 0 16px 28px rgba(37,99,235,.16); }
    .btn:active{ transform: translateY(0); }
    .btn-primary{
      background: linear-gradient(180deg, var(--primary), var(--primary-strong));
      color:#fff;
      box-shadow: 0 16px 28px rgba(37,99,235,.18);
    }
    .btn-primary:hover{
      background: linear-gradient(180deg, #3b82f6, var(--primary));
    }
    .btn-secondary{
      background: #fff;
      color: var(--primary);
      border-color: rgba(37,99,235,.2);
    }
    .btn-secondary:hover{
      background: rgba(37,99,235,.06);
      border-color: rgba(37,99,235,.26);
    }
    .btn-ghost{
      background: transparent;
      color: var(--muted);
      border-color: rgba(148,163,184,.16);
    }
    .btn-ghost:hover{
      color: var(--text);
      background: rgba(248,250,252,.9);
      border-color: rgba(148,163,184,.28);
    }

    .nav-link{
      display:inline-flex;
      align-items:center;
      min-height: 44px;
      padding: .25rem 0;
      color: var(--muted);
      position: relative;
      font-weight: 600;
      letter-spacing: .01em;
    }
    .nav-link::after{
      content:"";
      position:absolute;
      left:0;
      bottom:-6px;
      width:0;
      height:2px;
      border-radius:999px;
      background: linear-gradient(90deg, var(--primary), #60a5fa);
      transition: width .2s ease;
    }
    .nav-link:hover{ color: var(--primary); }
    .nav-link:hover::after,
    .nav-link[aria-current="page"]::after{
      width: 100%;
    }
    .nav-link[aria-current="page"]{
      color: var(--primary);
    }

    .hero-wrap{
      position:relative;
      overflow:hidden;
      border-radius: 32px;
      border: 1px solid rgba(148,163,184,.18);
      background:
        radial-gradient(circle at 12% 8%, rgba(37,99,235,.10), transparent 22%),
        radial-gradient(circle at 82% 18%, rgba(14,165,233,.08), transparent 24%),
        linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,252,.92));
      box-shadow: 0 24px 70px rgba(15,23,42,.08);
    }
    .hero-grid-bg{
      background-image:
        linear-gradient(rgba(37,99,235,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37,99,235,.06) 1px, transparent 1px);
      background-size: 28px 28px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.26), rgba(0,0,0,0));
      pointer-events:none;
    }

    .search-shell{
      border-radius: 22px;
      border: 1px solid rgba(148,163,184,.2);
      background: rgba(255,255,255,.92);
      box-shadow: 0 16px 36px rgba(15,23,42,.06);
    }
    .search-input{
      width:100%;
      border:none;
      outline:none;
      background: transparent;
      color: var(--text);
      padding: .95rem 1rem .95rem 1.15rem;
      font-size: 16px;
    }
    .search-input::placeholder{
      color: #94a3b8;
    }

    .stat-badge{
      display:flex;
      align-items:center;
      gap:.7rem;
      border-radius: 18px;
      border: 1px solid rgba(148,163,184,.18);
      background: rgba(255,255,255,.92);
      padding: 1rem 1.05rem;
      box-shadow: 0 10px 22px rgba(15,23,42,.05);
    }

    .num-badge{
      width: 44px;
      height: 44px;
      flex: none;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius: 14px;
      background: rgba(37,99,235,.08);
      border: 1px solid rgba(37,99,235,.14);
      color: var(--primary);
      font-weight: 800;
    }

    .info-separator{
      height:1px;
      background: linear-gradient(90deg, transparent, rgba(148,163,184,.28), transparent);
    }

    .panel-grid{
      display:grid;
      gap: 1rem;
    }

    .timeline{
      position: relative;
      padding-left: 1.15rem;
    }
    .timeline::before{
      content:"";
      position:absolute;
      left:.35rem;
      top:.2rem;
      bottom:.2rem;
      width:2px;
      border-radius:999px;
      background: linear-gradient(180deg, rgba(37,99,235,.35), rgba(37,99,235,.08));
    }
    .timeline-item{
      position:relative;
      padding-left: .9rem;
    }
    .timeline-item::before{
      content:"";
      position:absolute;
      left:-.03rem;
      top:.4rem;
      width:10px;
      height:10px;
      border-radius:999px;
      background: #fff;
      border: 2px solid var(--primary);
      box-shadow: 0 0 0 4px rgba(37,99,235,.08);
    }

    .data-tile{
      border-radius: 18px;
      border: 1px solid rgba(148,163,184,.18);
      background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,252,.96));
      padding: 1rem;
    }

    .ring-dot{
      width:10px;height:10px;border-radius:999px;background:var(--primary);box-shadow:0 0 0 5px rgba(37,99,235,.09);
    }

    .news-card{
      display:block;
      padding: 1.1rem 1.15rem;
      border-radius: 18px;
      border: 1px solid rgba(148,163,184,.18);
      background: #fff;
      box-shadow: 0 12px 28px rgba(15,23,42,.05);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .news-card:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 40px rgba(15,23,42,.08);
      border-color: rgba(37,99,235,.22);
    }
    .news-card:hover .news-title{
      color: var(--primary);
    }
    .news-title{
      font-size: 18px;
      line-height: 1.45;
      font-weight: 800;
      letter-spacing: -.02em;
      color: var(--text);
    }
    .news-summary{
      color: var(--muted);
      font-size: 15px;
      line-height: 1.78;
    }
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:.5rem .75rem;
      color:#64748b;
      font-size: 12px;
    }

    .faq-item{
      border-radius: 18px;
      overflow:hidden;
      border: 1px solid rgba(148,163,184,.18);
      background: #fff;
      box-shadow: 0 12px 28px rgba(15,23,42,.04);
    }
    .faq-q{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap: 1rem;
      text-align:left;
      padding: 1rem 1.1rem;
      background: transparent;
      border:none;
      color: var(--text);
      font-weight: 700;
      min-height: 56px;
    }
    .faq-q span{
      flex:1;
      line-height: 1.5;
    }
    .faq-icon{
      width: 28px;
      height: 28px;
      border-radius: 999px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background: rgba(37,99,235,.08);
      color: var(--primary);
      flex:none;
      transition: transform .2s ease, background-color .2s ease;
    }
    .faq-item.open .faq-icon{
      transform: rotate(45deg);
      background: rgba(245,158,11,.12);
      color: #b45309;
    }
    .faq-panel{
      display:none;
      padding: 0 1.1rem 1.05rem 1.1rem;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.85;
    }
    .faq-item.open .faq-panel{
      display:block;
    }

    .footer{
      background: linear-gradient(180deg, #0f172a, #0b1220);
      color: rgba(255,255,255,.88);
    }
    .footer a{
      color: rgba(255,255,255,.76);
    }
    .footer a:hover{
      color: #fff;
    }
    .footer-line{
      height:1px;
      background: rgba(255,255,255,.10);
    }

    .fixed-cta{
      position:fixed;
      left:0;
      right:0;
      bottom:0;
      z-index: 60;
      padding: 12px 0 calc(12px + env(safe-area-inset-bottom));
      background: rgba(255,255,255,.92);
      backdrop-filter: blur(12px);
      border-top: 1px solid rgba(148,163,184,.20);
      box-shadow: 0 -10px 26px rgba(15,23,42,.08);
    }

    .soft-grid{
      display:grid;
      grid-template-columns: repeat(12, minmax(0, 1fr));
      gap: 1rem;
    }

    .entry-btn{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap: 1rem;
      padding: 1rem 1.05rem;
      border-radius: 18px;
      border: 1px solid rgba(148,163,184,.18);
      background: #fff;
      box-shadow: 0 12px 26px rgba(15,23,42,.05);
      min-height: 72px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .entry-btn:hover{
      transform: translateY(-2px);
      border-color: rgba(37,99,235,.22);
      box-shadow: 0 18px 36px rgba(15,23,42,.08);
    }

    .callout{
      border-left: 4px solid rgba(37,99,235,.32);
      background: linear-gradient(90deg, rgba(37,99,235,.08), rgba(255,255,255,1));
      border-radius: 18px;
      padding: 1rem 1.1rem;
    }

    .content-rail{
      border: 1px solid rgba(148,163,184,.18);
      border-radius: 22px;
      background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,252,.96));
      box-shadow: 0 16px 34px rgba(15,23,42,.05);
    }

    .empty-state{
      padding: 2rem 1.4rem;
      text-align:center;
      color: var(--muted);
      border: 1px dashed rgba(37,99,235,.24);
      background: rgba(37,99,235,.04);
      border-radius: 18px;
      font-weight: 600;
    }

    .article-mock{
      border-radius: 22px;
      border: 1px solid rgba(148,163,184,.18);
      background: linear-gradient(180deg, #fff, #f8fafc);
      box-shadow: 0 16px 34px rgba(15,23,42,.05);
      overflow:hidden;
    }

    .article-row{
      display:grid;
      grid-template-columns: 1.7fr .7fr .5fr;
      gap: .75rem;
      align-items:center;
      padding: .95rem 1rem;
      border-top: 1px solid rgba(148,163,184,.12);
    }
    .article-row:first-child{
      border-top:none;
    }

    .chip{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      padding: .28rem .6rem;
      border-radius: 999px;
      border: 1px solid rgba(148,163,184,.18);
      background:#fff;
      color: var(--muted);
      font-size: 12px;
      white-space: nowrap;
    }

    .table-wrap{
      overflow-x:auto;
      border: 1px solid rgba(148,163,184,.18);
      border-radius: 18px;
      background:#fff;
    }
    table{
      width:100%;
      border-collapse:collapse;
      min-width: 640px;
    }
    th, td{
      padding: .9rem 1rem;
      border-bottom: 1px solid rgba(148,163,184,.12);
      text-align:left;
      vertical-align:top;
    }
    th{
      background: rgba(248,250,252,.95);
      color: var(--text);
      font-size: 14px;
    }
    td{
      color: var(--muted);
    }

    .article-content{
      color: #1e293b;
      font-size: 17px;
      line-height: 1.9;
    }
    .article-content h2,
    .article-content h3{
      color: var(--text);
      line-height:1.35;
      font-weight:800;
      letter-spacing:-0.02em;
      margin: 2rem 0 1rem;
    }
    .article-content h2{ font-size: clamp(22px, 3vw, 30px); }
    .article-content h3{ font-size: 22px; }
    .article-content p{ margin: 1rem 0; }
    .article-content ul,
    .article-content ol{
      margin: 1rem 0;
      padding-left: 1.25rem;
    }
    .article-content li{ margin: .45rem 0; }
    .article-content blockquote{
      margin: 1.25rem 0;
      padding: 1rem 1.1rem;
      border-left: 4px solid rgba(37,99,235,.32);
      background: rgba(37,99,235,.05);
      border-radius: 0 16px 16px 0;
      color: #334155;
    }
    .article-content pre{
      overflow:auto;
      padding: 1rem 1.1rem;
      border-radius: 18px;
      background: #0f172a;
      color:#e2e8f0;
      font-size: 14px;
    }
    .article-content code{
      padding: .15rem .4rem;
      border-radius: 8px;
      background: rgba(15,23,42,.06);
      color:#0f172a;
    }
    .article-content figure{
      margin: 1.25rem 0;
    }
    .article-content img{
      border-radius: 16px;
      border: 1px solid rgba(148,163,184,.2);
    }

    @media (max-width: 1024px){
      .section-pad{ padding: 72px 0; }
      .hero-wrap{ border-radius: 28px; }
      .soft-grid{ grid-template-columns: repeat(6, minmax(0, 1fr)); }
      .article-row{ grid-template-columns: 1.4fr .8fr .6fr; }
    }

    @media (max-width: 768px){
      body{ padding-bottom: 110px; }
      .section-pad{ padding: 60px 0; }
      .container{ width:min(var(--container), calc(100% - 24px)); }
      .soft-grid{ grid-template-columns: 1fr; }
      .news-title{ font-size: 17px; }
      .article-row{ grid-template-columns: 1fr; gap: .45rem; }
    }

    @media (max-width: 640px){
      .section-title{ font-size: 26px; }
      .section-copy{ font-size: 16px; }
      .btn{ width:100%; }
      .hero-wrap{ border-radius: 22px; }
      .search-shell{ border-radius: 18px; }
      .fixed-cta .btn{ min-width: 0; }
      .fixed-cta .container > div{
        flex-direction:column;
        align-items:stretch;
      }
      .fixed-cta .container > div > div:last-child{
        width:100%;
      }
    }

/* roulang page: article */
:root{
      --bg: #f8fafc;
      --surface: #ffffff;
      --surface-soft: #f1f8ff;
      --primary: #2563eb;
      --primary-strong: #1d4ed8;
      --accent: #f59e0b;
      --accent-2: #f97316;
      --text: #0f172a;
      --muted: #475569;
      --weak: #94a3b8;
      --line: rgba(148,163,184,.22);
      --shadow: 0 18px 45px rgba(15, 23, 42, .08);
      --shadow-sm: 0 10px 28px rgba(15, 23, 42, .06);
      --radius-xl: 24px;
      --radius-lg: 18px;
      --radius-md: 14px;
      --container: 1220px;
      --ring: 0 0 0 2px rgba(37, 99, 235, .18);
    }

    *{ box-sizing:border-box; }
    html{ scroll-behavior:smooth; text-size-adjust:100%; }
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at 20% 0%, rgba(37,99,235,.07), transparent 28%),
        radial-gradient(circle at 85% 10%, rgba(14,165,233,.05), transparent 24%),
        linear-gradient(180deg, #ffffff 0%, #f8fafc 38%, #f8fafc 100%);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      line-height:1.75;
      overflow-x:hidden;
      padding-bottom:96px;
    }
    ::selection{ background:rgba(37,99,235,.16); color:#0f172a; }
    img{ max-width:100%; display:block; }
    a{ color:inherit; text-decoration:none; transition:color .2s ease, opacity .2s ease, transform .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease; }
    button,input,textarea,select{ font:inherit; }
    button{ cursor:pointer; }
    a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible{
      outline:2px solid var(--primary);
      outline-offset:3px;
      border-radius:12px;
    }

    .container{
      width:min(var(--container), calc(100% - 32px));
      margin-inline:auto;
    }
    .section-pad{ padding:88px 0; }
    .section-title{
      font-size:clamp(28px,4vw,38px);
      line-height:1.15;
      letter-spacing:-0.03em;
      font-weight:800;
      color:var(--text);
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:.5rem;
      font-size:12px;
      font-weight:700;
      letter-spacing:.16em;
      text-transform:uppercase;
      color:var(--primary);
      background:rgba(37,99,235,.08);
      border:1px solid rgba(37,99,235,.16);
      border-radius:999px;
      padding:.45rem .8rem;
    }
    .section-copy{
      color:var(--muted);
      font-size:17px;
      line-height:1.85;
      max-width:66ch;
    }

    .card{
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow);
    }
    .card-soft{
      background:linear-gradient(180deg, rgba(255,255,255,.94), rgba(248,250,252,.96));
      border:1px solid rgba(148,163,184,.18);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-sm);
    }
    .mini-card{
      background:#fff;
      border:1px solid rgba(148,163,184,.18);
      border-radius:20px;
      box-shadow:0 14px 30px rgba(15,23,42,.05);
    }

    .badge{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      font-size:12px;
      font-weight:700;
      color:var(--primary);
      background:rgba(37,99,235,.08);
      border:1px solid rgba(37,99,235,.16);
      border-radius:999px;
      padding:.38rem .7rem;
      white-space:nowrap;
    }
    .badge-accent{
      color:#a16207;
      background:rgba(245,158,11,.12);
      border-color:rgba(245,158,11,.18);
    }
    .chip{
      display:inline-flex;
      align-items:center;
      min-height:28px;
      padding:.25rem .62rem;
      border-radius:999px;
      color:#2563eb;
      background:rgba(37,99,235,.07);
      border:1px solid rgba(37,99,235,.14);
      font-weight:700;
      white-space:nowrap;
    }
    .ring-dot{
      width:10px;
      height:10px;
      display:inline-flex;
      border-radius:999px;
      background:#22c55e;
      box-shadow:0 0 0 5px rgba(34,197,94,.12);
      flex:0 0 auto;
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.55rem;
      min-height:48px;
      padding:.9rem 1.35rem;
      border-radius:999px;
      font-weight:700;
      border:1px solid transparent;
      transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease, color .18s ease, opacity .18s ease;
      will-change:transform;
    }
    .btn:hover{ transform:translateY(-1px); box-shadow:0 16px 28px rgba(37,99,235,.16); }
    .btn:active{ transform:translateY(0); }
    .btn-primary{
      background:linear-gradient(180deg, var(--primary), var(--primary-strong));
      color:#fff;
      box-shadow:0 16px 28px rgba(37,99,235,.18);
    }
    .btn-primary:hover{ background:linear-gradient(180deg, #3b82f6, var(--primary)); }
    .btn-secondary{
      background:#fff;
      color:var(--primary);
      border-color:rgba(37,99,235,.2);
    }
    .btn-secondary:hover{
      background:rgba(37,99,235,.06);
      border-color:rgba(37,99,235,.26);
    }
    .btn-ghost{
      background:transparent;
      color:var(--muted);
      border-color:rgba(148,163,184,.16);
    }
    .btn-ghost:hover{
      color:var(--text);
      background:rgba(248,250,252,.9);
      border-color:rgba(148,163,184,.28);
    }

    .nav-link{
      display:inline-flex;
      align-items:center;
      min-height:44px;
      padding:.25rem 0;
      color:var(--muted);
      position:relative;
      font-weight:600;
      letter-spacing:.01em;
    }
    .nav-link::after{
      content:"";
      position:absolute;
      left:0;
      bottom:-6px;
      width:0;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg, var(--primary), #60a5fa);
      transition:width .2s ease;
    }
    .nav-link:hover{ color:var(--primary); }
    .nav-link:hover::after,
    .nav-link[aria-current="page"]::after{ width:100%; }
    .nav-link[aria-current="page"]{ color:var(--primary); }

    .article-top{
      padding:42px 0 28px;
      background:
        linear-gradient(rgba(37,99,235,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37,99,235,.045) 1px, transparent 1px);
      background-size:30px 30px;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:.45rem;
      flex-wrap:wrap;
      color:#64748b;
      font-size:14px;
      margin-bottom:22px;
    }
    .breadcrumb a{
      color:#64748b;
      font-weight:600;
    }
    .breadcrumb a:hover{ color:var(--primary); }
    .breadcrumb .sep{ color:#cbd5e1; }
    .breadcrumb .current{
      max-width:min(58ch, 100%);
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
      color:#94a3b8;
    }

    .article-head-card{
      position:relative;
      overflow:hidden;
      border-radius:32px;
      border:1px solid rgba(148,163,184,.18);
      background:
        radial-gradient(circle at 10% 18%, rgba(37,99,235,.1), transparent 23%),
        radial-gradient(circle at 92% 0%, rgba(14,165,233,.08), transparent 25%),
        linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,252,.96));
      box-shadow:0 24px 70px rgba(15,23,42,.08);
    }
    .article-head-card::before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(37,99,235,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37,99,235,.06) 1px, transparent 1px);
      background-size:28px 28px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.32), rgba(0,0,0,0));
      pointer-events:none;
    }
    .article-head-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0, 1fr) 320px;
      gap:34px;
      padding:38px;
      align-items:stretch;
    }
    .article-title{
      max-width:920px;
      font-size:clamp(32px, 5vw, 52px);
      line-height:1.08;
      letter-spacing:-.045em;
      font-weight:900;
      color:var(--text);
    }
    .article-desc{
      margin-top:18px;
      max-width:74ch;
      color:#475569;
      font-size:17px;
      line-height:1.85;
    }
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:.7rem;
      margin-top:20px;
      color:#64748b;
      font-size:14px;
    }
    .meta-pill{
      display:inline-flex;
      align-items:center;
      gap:.42rem;
      border-radius:999px;
      padding:.4rem .72rem;
      background:#fff;
      border:1px solid rgba(148,163,184,.18);
      box-shadow:0 8px 20px rgba(15,23,42,.04);
      color:#475569;
      font-weight:650;
    }
    .summary-panel{
      align-self:stretch;
      padding:20px;
      border-radius:24px;
      background:rgba(255,255,255,.86);
      border:1px solid rgba(148,163,184,.2);
      box-shadow:0 16px 36px rgba(15,23,42,.06);
    }
    .summary-panel-title{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      padding-bottom:14px;
      border-bottom:1px solid rgba(148,163,184,.18);
      font-weight:850;
      color:#0f172a;
    }
    .summary-list{
      margin:16px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .summary-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#475569;
      font-size:14px;
      line-height:1.65;
    }
    .summary-list li::before{
      content:"";
      width:8px;
      height:8px;
      margin-top:8px;
      border-radius:999px;
      background:#2563eb;
      box-shadow:0 0 0 5px rgba(37,99,235,.09);
      flex:0 0 auto;
    }

    .reader-layout{
      display:grid;
      grid-template-columns:minmax(0, 820px) 320px;
      gap:34px;
      align-items:start;
      padding:44px 0 0;
    }
    .reader-card{
      background:#fff;
      border:1px solid rgba(148,163,184,.18);
      border-radius:28px;
      box-shadow:var(--shadow);
      padding:42px;
      min-width:0;
    }
    .article-prose{
      color:#1e293b;
      font-size:17px;
      line-height:1.88;
      overflow-wrap:anywhere;
    }
    .article-prose > *:first-child{ margin-top:0; }
    .article-prose > *:last-child{ margin-bottom:0; }
    .article-prose h2{
      margin:2.1em 0 .75em;
      padding-top:.15em;
      font-size:clamp(24px, 3vw, 32px);
      line-height:1.25;
      letter-spacing:-.03em;
      font-weight:850;
      color:#0f172a;
    }
    .article-prose h2::before{
      content:"";
      display:block;
      width:38px;
      height:4px;
      border-radius:999px;
      background:linear-gradient(90deg, #2563eb, #93c5fd);
      margin-bottom:14px;
    }
    .article-prose h3{
      margin:1.8em 0 .65em;
      font-size:clamp(20px, 2.4vw, 25px);
      line-height:1.35;
      font-weight:800;
      color:#0f172a;
    }
    .article-prose h4{
      margin:1.5em 0 .5em;
      font-size:18px;
      font-weight:800;
      color:#1e293b;
    }
    .article-prose p{ margin:1.05em 0; }
    .article-prose a{
      color:#1d4ed8;
      font-weight:700;
      border-bottom:1px solid rgba(37,99,235,.25);
    }
    .article-prose a:hover{
      color:#2563eb;
      border-bottom-color:rgba(37,99,235,.55);
    }
    .article-prose ul,
    .article-prose ol{
      margin:1.1em 0;
      padding-left:1.4em;
    }
    .article-prose li{ margin:.42em 0; padding-left:.15em; }
    .article-prose blockquote{
      margin:1.6em 0;
      padding:1.1rem 1.25rem;
      border-left:4px solid #2563eb;
      border-radius:0 18px 18px 0;
      background:linear-gradient(90deg, rgba(37,99,235,.08), rgba(224,242,254,.36));
      color:#334155;
      font-weight:550;
    }
    .article-prose figure{ margin:1.6em 0; }
    .article-prose figcaption{
      margin-top:.65rem;
      text-align:center;
      color:#94a3b8;
      font-size:13px;
    }
    .article-prose img{
      border-radius:18px;
      border:1px solid rgba(148,163,184,.2);
      box-shadow:0 14px 32px rgba(15,23,42,.06);
      margin:1.4em auto;
      height:auto;
    }
    .article-prose code{
      border-radius:8px;
      padding:.14rem .34rem;
      background:#eef6ff;
      border:1px solid rgba(37,99,235,.12);
      color:#1d4ed8;
      font-size:.92em;
    }
    .article-prose pre{
      margin:1.5em 0;
      padding:1rem;
      border-radius:18px;
      background:#0f172a;
      color:#e2e8f0;
      overflow:auto;
      box-shadow:0 16px 35px rgba(15,23,42,.14);
    }
    .article-prose pre code{
      padding:0;
      border:0;
      background:transparent;
      color:inherit;
      font-size:14px;
    }
    .article-prose table{
      display:block;
      width:100%;
      max-width:100%;
      overflow-x:auto;
      border-collapse:collapse;
      margin:1.5em 0;
      border:1px solid rgba(148,163,184,.22);
      border-radius:16px;
      background:#fff;
    }
    .article-prose th,
    .article-prose td{
      min-width:120px;
      padding:.78rem .9rem;
      border-bottom:1px solid rgba(148,163,184,.18);
      text-align:left;
      vertical-align:top;
    }
    .article-prose th{
      background:#f1f8ff;
      color:#0f172a;
      font-weight:800;
    }

    .not-found{
      padding:44px 24px;
      text-align:center;
      border:1px dashed rgba(37,99,235,.24);
      border-radius:24px;
      background:linear-gradient(180deg, rgba(224,242,254,.45), rgba(255,255,255,.92));
    }
    .not-found-icon{
      width:58px;
      height:58px;
      border-radius:22px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      margin-bottom:14px;
      background:#eff6ff;
      color:#2563eb;
      font-size:24px;
      font-weight:900;
      border:1px solid rgba(37,99,235,.16);
    }

    .reader-aside{
      position:sticky;
      top:128px;
      display:grid;
      gap:18px;
    }
    .aside-card{
      padding:20px;
      border-radius:24px;
      background:#fff;
      border:1px solid rgba(148,163,184,.18);
      box-shadow:var(--shadow-sm);
    }
    .aside-title{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      font-size:15px;
      font-weight:850;
      color:#0f172a;
      padding-bottom:12px;
      border-bottom:1px solid rgba(148,163,184,.18);
    }
    .assist-list{
      margin:14px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .assist-list a,
    .assist-list span{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:#475569;
      font-size:14px;
      line-height:1.6;
      padding:9px 10px;
      border-radius:14px;
    }
    .assist-list a:hover{
      color:#2563eb;
      background:rgba(37,99,235,.06);
    }
    .assist-index{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:22px;
      height:22px;
      border-radius:999px;
      background:#eff6ff;
      color:#2563eb;
      font-size:12px;
      font-weight:800;
      flex:0 0 auto;
    }

    .notice-strip{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:16px;
      border-radius:20px;
      background:linear-gradient(180deg, rgba(255,251,235,.86), rgba(255,255,255,.92));
      border:1px solid rgba(245,158,11,.2);
      color:#78350f;
      font-size:14px;
      line-height:1.65;
    }
    .notice-strip strong{ color:#92400e; }

    .related-section{
      padding:46px 0 88px;
    }
    .related-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
      align-items:stretch;
      margin-top:24px;
    }
    .related-card{
      position:relative;
      overflow:hidden;
      padding:24px;
      border-radius:24px;
      background:#fff;
      border:1px solid rgba(148,163,184,.18);
      box-shadow:var(--shadow-sm);
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .related-card:hover{
      transform:translateY(-2px);
      box-shadow:var(--shadow);
      border-color:rgba(37,99,235,.2);
    }
    .related-card h3{
      margin:12px 0 10px;
      font-size:22px;
      line-height:1.35;
      letter-spacing:-.02em;
      font-weight:850;
      color:#0f172a;
    }
    .related-card p{
      color:#475569;
      line-height:1.8;
      margin:0 0 18px;
    }
    .related-meta{
      display:flex;
      flex-wrap:wrap;
      gap:.6rem;
      align-items:center;
      color:#64748b;
      font-size:13px;
    }
    .empty-related{
      padding:24px;
      border-radius:24px;
      border:1px dashed rgba(37,99,235,.24);
      background:linear-gradient(180deg, rgba(224,242,254,.45), rgba(255,255,255,.92));
    }

    .article-cta{
      margin-top:26px;
      overflow:hidden;
      border-radius:30px;
      border:1px solid rgba(37,99,235,.16);
      background:
        radial-gradient(circle at 16% 18%, rgba(37,99,235,.12), transparent 28%),
        linear-gradient(135deg, rgba(239,246,255,.95), rgba(255,255,255,.96));
      box-shadow:var(--shadow);
    }
    .article-cta-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      padding:30px;
    }
    .article-cta h2{
      margin:0;
      font-size:clamp(24px, 3vw, 32px);
      line-height:1.18;
      letter-spacing:-.03em;
      font-weight:900;
    }
    .article-cta p{
      margin:10px 0 0;
      color:#475569;
      max-width:66ch;
      line-height:1.8;
    }

    .footer{
      background:#0f172a;
      color:#fff;
    }
    .footer a{
      color:rgba(255,255,255,.66);
    }
    .footer a:hover{
      color:#fff;
      text-decoration:underline;
      text-underline-offset:4px;
    }
    .footer-line{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.16), transparent);
    }

    .fixed-bar{
      position:fixed;
      z-index:45;
      left:0;
      right:0;
      bottom:0;
      background:rgba(255,255,255,.94);
      backdrop-filter:blur(18px);
      border-top:1px solid rgba(148,163,184,.22);
      box-shadow:0 -18px 45px rgba(15,23,42,.08);
      padding:12px 0 calc(12px + env(safe-area-inset-bottom));
    }
    .fixed-bar[hidden]{ display:none; }
    .fixed-bar-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
    }
    .fixed-copy{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      color:#475569;
      font-size:14px;
    }
    .fixed-copy strong{
      color:#0f172a;
      font-weight:850;
    }
    .fixed-actions{
      display:flex;
      align-items:center;
      gap:10px;
      flex:0 0 auto;
    }
    .fixed-close{
      width:38px;
      height:38px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:999px;
      border:1px solid rgba(148,163,184,.22);
      background:#fff;
      color:#64748b;
      transition:background .18s ease, color .18s ease, transform .18s ease;
    }
    .fixed-close:hover{
      background:#f8fafc;
      color:#0f172a;
      transform:translateY(-1px);
    }

    @media (max-width:1024px){
      body{ padding-bottom:112px; }
      .article-head-inner{
        grid-template-columns:1fr;
        padding:30px;
      }
      .summary-panel{ max-width:none; }
      .reader-layout{
        grid-template-columns:1fr;
      }
      .reader-aside{
        position:static;
        grid-template-columns:1fr 1fr;
      }
      .related-grid{
        grid-template-columns:1fr;
      }
      .article-cta-inner{
        align-items:flex-start;
        flex-direction:column;
      }
    }

    @media (max-width:768px){
      .container{ width:min(100% - 24px, var(--container)); }
      .section-pad{ padding:64px 0; }
      header nav{
        width:100%;
        overflow-x:auto;
        flex-wrap:nowrap !important;
        padding-bottom:8px;
      }
      header nav::-webkit-scrollbar{ height:0; }
      .nav-link{ white-space:nowrap; }
      .article-top{ padding:26px 0 18px; }
      .article-head-card{ border-radius:24px; }
      .article-head-inner{ padding:24px; gap:22px; }
      .article-desc{ font-size:16px; }
      .reader-layout{ padding-top:28px; }
      .reader-card{ padding:28px 22px; border-radius:24px; }
      .article-prose{ font-size:16px; line-height:1.86; }
      .reader-aside{ grid-template-columns:1fr; }
      .related-section{ padding:36px 0 70px; }
      .fixed-bar-inner{
        align-items:stretch;
        flex-direction:column;
      }
      .fixed-copy{
        justify-content:space-between;
      }
      .fixed-actions{
        width:100%;
      }
      .fixed-actions .btn{
        flex:1;
      }
    }

    @media (max-width:520px){
      body{ padding-bottom:142px; }
      .article-title{ font-size:32px; }
      .breadcrumb .current{ white-space:normal; }
      .meta-row{ gap:.5rem; }
      .summary-panel{ padding:16px; border-radius:20px; }
      .reader-card{ padding:24px 18px; }
      .article-prose h2{ font-size:24px; }
      .article-prose h3{ font-size:20px; }
      .article-cta-inner{ padding:24px 18px; }
      .related-card,
      .empty-related{ padding:20px; }
      .btn{ width:100%; }
      .fixed-copy{
        font-size:13px;
        align-items:flex-start;
      }
      .fixed-copy .chip{
        display:none;
      }
      .fixed-close{
        width:36px;
        height:36px;
      }
    }