/* roulang page: index */
:root{
      --green:#16a34a;
      --green-2:#22c55e;
      --mint:#ecfdf5;
      --mint-2:#d1fae5;
      --amber:#f59e0b;
      --text:#111827;
      --muted:#6b7280;
      --line:#e5e7eb;
      --bg:#f8fafc;
      --shadow:0 16px 40px rgba(15,23,42,.08);
      --shadow-sm:0 10px 24px rgba(15,23,42,.05);
      --radius-xl:28px;
      --radius-lg:20px;
      --radius-md:14px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:PingFang SC, Microsoft YaHei, Noto Sans SC, system-ui, sans-serif;
      color:var(--text);
      background:#fff;
      line-height:1.75;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    ::selection{background:#bbf7d0;color:#14532d}

    .page-grid{
      background-image:
        linear-gradient(to right, rgba(148,163,184,.12) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(148,163,184,.12) 1px, transparent 1px);
      background-size:42px 42px;
      background-position:center top;
    }
    .soft-spot::before{
      content:"";
      position:absolute;
      inset:-10% auto auto -8%;
      width:22rem;
      height:22rem;
      border-radius:9999px;
      background:radial-gradient(circle, rgba(34,197,94,.16) 0%, rgba(34,197,94,0) 68%);
      filter:blur(4px);
      pointer-events:none;
    }
    .soft-spot::after{
      content:"";
      position:absolute;
      inset:auto -10% -12% auto;
      width:18rem;
      height:18rem;
      border-radius:9999px;
      background:radial-gradient(circle, rgba(245,158,11,.11) 0%, rgba(245,158,11,0) 70%);
      filter:blur(6px);
      pointer-events:none;
    }
    .panel{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(229,231,235,.95);
      box-shadow:var(--shadow);
      backdrop-filter:blur(12px);
      border-radius:var(--radius-xl);
    }
    .card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease, background-color .2s ease;
    }
    .card:hover{
      transform:translateY(-2px);
      border-color:#bbf7d0;
      box-shadow:0 18px 36px rgba(15,23,42,.08);
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.65rem .95rem;
      border-radius:999px;
      font-size:.95rem;
      color:#374151;
      border:1px solid transparent;
      transition:all .18s ease;
      white-space:nowrap;
    }
    .nav-link:hover{
      color:var(--green);
      background:#f0fdf4;
      border-color:#bbf7d0;
    }
    .nav-link.active{
      color:#166534;
      background:var(--mint);
      border-color:#bbf7d0;
      font-weight:700;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      padding:.34rem .75rem;
      border-radius:999px;
      font-size:.78rem;
      font-weight:700;
      letter-spacing:.02em;
      border:1px solid transparent;
    }
    .badge-green{background:#ecfdf5;color:#166534;border-color:#bbf7d0}
    .badge-amber{background:#fffbeb;color:#b45309;border-color:#fde68a}
    .badge-slate{background:#f8fafc;color:#475569;border-color:#e2e8f0}
    .chip{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.4rem;
      padding:.58rem .9rem;
      border-radius:999px;
      border:1px solid var(--line);
      background:#fff;
      color:#374151;
      font-size:.92rem;
      transition:all .18s ease;
      cursor:pointer;
      min-height:44px;
      user-select:none;
    }
    .chip:hover{
      border-color:#bbf7d0;
      background:#f0fdf4;
      color:#166534;
    }
    .chip.active{
      background:#16a34a;
      color:#fff;
      border-color:#16a34a;
      box-shadow:0 10px 22px rgba(22,163,74,.18);
    }
    .input-field{
      width:100%;
      min-height:46px;
      border:1px solid #dbe3ea;
      border-radius:14px;
      background:#fff;
      color:#111827;
      padding:.78rem 1rem;
      transition:all .18s ease;
      outline:none;
    }
    .input-field::placeholder{color:#94a3b8}
    .input-field:focus{
      border-color:#22c55e;
      box-shadow:0 0 0 4px rgba(34,197,94,.12);
    }
    .btn-primary{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:.82rem 1.15rem;
      border-radius:14px;
      background:linear-gradient(180deg,#22c55e 0%, #16a34a 100%);
      color:#fff;
      font-weight:700;
      border:1px solid rgba(21,128,61,.2);
      box-shadow:0 14px 28px rgba(22,163,74,.16);
      transition:transform .18s ease, box-shadow .18s ease, filter .18s ease;
      cursor:pointer;
    }
    .btn-primary:hover{
      transform:translateY(-1px);
      filter:saturate(1.05);
      box-shadow:0 18px 30px rgba(22,163,74,.22);
    }
    .btn-primary:active{transform:translateY(0) scale(.99)}
    .btn-secondary{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:.82rem 1.15rem;
      border-radius:14px;
      background:#fff;
      color:#111827;
      border:1px solid #d8e1e8;
      transition:all .18s ease;
      font-weight:700;
      cursor:pointer;
    }
    .btn-secondary:hover{
      background:#f0fdf4;
      border-color:#bbf7d0;
      color:#166534;
    }
    .section-title{
      font-size:clamp(1.8rem, 3vw, 2.55rem);
      line-height:1.18;
      font-weight:800;
      letter-spacing:-.03em;
      color:#0f172a;
    }
    .section-subtitle{
      color:#64748b;
      font-size:1rem;
      line-height:1.8;
      max-width:72ch;
    }
    details summary{list-style:none}
    details summary::-webkit-details-marker{display:none}
    details[open]{
      border-color:#bbf7d0 !important;
      box-shadow:0 14px 30px rgba(22,163,74,.08);
    }
    .footer-link{
      display:inline-flex;
      padding:.2rem 0;
      color:#64748b;
      transition:color .18s ease;
    }
    .footer-link:hover{color:#166534}
    .count-num{
      font-size:clamp(1.65rem, 3vw, 2.4rem);
      line-height:1;
      font-weight:800;
      letter-spacing:-.03em;
      color:#0f172a;
    }
    .timeline-dot{
      width:.8rem;
      height:.8rem;
      border-radius:999px;
      background:#22c55e;
      box-shadow:0 0 0 6px rgba(34,197,94,.12);
      flex:none;
    }

/* roulang page: category1 */
:root{
      --bg:#ffffff;
      --bg-soft:#f8fafc;
      --bg-soft-2:#f9fafb;
      --text:#111827;
      --muted:#6b7280;
      --line:#e5e7eb;
      --line-strong:#cbd5e1;
      --green:#16a34a;
      --green-strong:#15803d;
      --green-soft:#ecfdf5;
      --green-weak:#d1fae5;
      --amber:#f59e0b;
      --shadow:0 16px 40px rgba(15,23,42,.08);
      --radius-xl:28px;
      --radius-lg:20px;
      --radius-md:14px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        linear-gradient(to right, rgba(229,231,235,.55) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(229,231,235,.55) 1px, transparent 1px),
        var(--bg);
      background-size:48px 48px,48px 48px,auto;
      font-family: PingFang SC, Microsoft YaHei, Noto Sans SC, system-ui, sans-serif;
      letter-spacing:0;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    ::selection{background:#bbf7d0;color:#052e16}
    .nav-link{
      display:inline-flex;
      align-items:center;
      height:42px;
      padding:0 16px;
      border-radius:999px;
      color:#374151;
      border:1px solid transparent;
      transition:all .2s ease;
      font-size:14px;
      font-weight:600;
    }
    .nav-link:hover,
    .nav-link:focus-visible{
      background:var(--green-soft);
      border-color:#bbf7d0;
      color:#166534;
      outline:none;
      transform:translateY(-1px);
    }
    .nav-link.active{
      background:#dcfce7;
      border-color:#86efac;
      color:#166534;
      box-shadow:0 10px 20px rgba(22,163,74,.08);
    }
    .footer-link{
      color:#4b5563;
      transition:all .2s ease;
    }
    .footer-link:hover,
    .footer-link:focus-visible{
      color:#166534;
      outline:none;
    }
    .panel{
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.94);
      box-shadow:var(--shadow);
    }
    .card{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:#fff;
      transition:all .2s ease;
      box-shadow:0 10px 28px rgba(15,23,42,.05);
    }
    .card:hover{
      transform:translateY(-2px);
      border-color:#86efac;
      box-shadow:var(--shadow);
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:.4rem;
      border-radius:999px;
      padding:.46rem .8rem;
      font-size:13px;
      line-height:1;
      font-weight:700;
      white-space:nowrap;
    }
    .pill-green{
      background:var(--green-soft);
      color:#166534;
      border:1px solid #bbf7d0;
    }
    .pill-gray{
      background:#f3f4f6;
      color:#4b5563;
      border:1px solid #e5e7eb;
    }
    .pill-amber{
      background:#fffbeb;
      color:#92400e;
      border:1px solid #fde68a;
    }
    .btn-primary{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.5rem;
      min-height:44px;
      padding:.8rem 1.15rem;
      border-radius:14px;
      background:var(--green);
      color:#fff;
      border:1px solid var(--green);
      font-weight:700;
      box-shadow:0 12px 28px rgba(22,163,74,.18);
      transition:all .2s ease;
    }
    .btn-primary:hover,
    .btn-primary:focus-visible{
      background:var(--green-strong);
      border-color:var(--green-strong);
      transform:translateY(-1px);
      outline:none;
    }
    .btn-primary:active{transform:translateY(0) scale(.99)}
    .btn-secondary{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.5rem;
      min-height:44px;
      padding:.8rem 1.15rem;
      border-radius:14px;
      background:#fff;
      color:#111827;
      border:1px solid var(--line-strong);
      font-weight:700;
      transition:all .2s ease;
    }
    .btn-secondary:hover,
    .btn-secondary:focus-visible{
      background:var(--green-soft);
      border-color:#86efac;
      color:#166534;
      outline:none;
      transform:translateY(-1px);
    }
    .input{
      width:100%;
      min-height:48px;
      border-radius:14px;
      border:1px solid var(--line-strong);
      background:#fff;
      color:var(--text);
      padding:0 14px;
      transition:all .2s ease;
      outline:none;
    }
    .input::placeholder{color:#9ca3af}
    .input:focus{
      border-color:#86efac;
      box-shadow:0 0 0 4px rgba(22,163,74,.12);
    }
    .section{
      padding:72px 0;
    }
    .section-tight{padding:56px 0}
    .section-title{
      font-size:clamp(28px, 4vw, 40px);
      line-height:1.15;
      font-weight:800;
      letter-spacing:0;
      color:#0f172a;
    }
    .section-subtitle{
      color:var(--muted);
      line-height:1.8;
      font-size:16px;
      max-width:720px;
    }
    .timeline-line{
      position:relative;
      padding-left:20px;
    }
    .timeline-line::before{
      content:"";
      position:absolute;
      left:7px;
      top:8px;
      bottom:8px;
      width:2px;
      background:linear-gradient(to bottom, #bbf7d0, #e5e7eb);
    }
    .timeline-dot{
      position:absolute;
      left:0;
      top:7px;
      width:16px;
      height:16px;
      border-radius:999px;
      background:#22c55e;
      box-shadow:0 0 0 4px rgba(34,197,94,.15);
    }
    details summary::-webkit-details-marker{display:none}
    details summary{
      list-style:none;
      cursor:pointer;
    }
    .mini-chip{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      padding:.35rem .6rem;
      border-radius:999px;
      background:#f8fafc;
      border:1px solid #e5e7eb;
      color:#475569;
      font-size:12px;
      font-weight:700;
    }
    .screen-card{
      border:1px solid #dbeafe;
      background:linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
      border-radius:24px;
      box-shadow:var(--shadow);
    }
    .screen-topbar{
      height:14px;
      border-bottom:1px solid #e5e7eb;
      background:linear-gradient(90deg, #f8fafc 0%, #ffffff 100%);
      border-top-left-radius:24px;
      border-top-right-radius:24px;
    }
    .screen-grid{
      background-image:
        linear-gradient(to right, rgba(34,197,94,.08) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(34,197,94,.08) 1px, transparent 1px);
      background-size:24px 24px;
    }
    .icon-box{
      width:44px;
      height:44px;
      border-radius:16px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:var(--green);
      color:#fff;
      box-shadow:0 12px 24px rgba(22,163,74,.2);
    }
    .soft-border{border-color:var(--line)}
    .stat-box{
      border:1px solid #e5e7eb;
      background:#fff;
      border-radius:18px;
      padding:16px;
    }
    .stat-number{
      font-size:28px;
      line-height:1;
      font-weight:800;
      letter-spacing:0;
      color:#111827;
    }
    .table-like{
      border:1px solid #e5e7eb;
      border-radius:18px;
      overflow:hidden;
      background:#fff;
    }
    .table-like > div + div{border-top:1px solid #e5e7eb}
    .sticky-shadow{
      box-shadow:0 1px 0 rgba(15,23,42,.06), 0 8px 24px rgba(15,23,42,.04);
    }
    @media (max-width: 1024px){
      .section{padding:64px 0}
    }
    @media (max-width: 768px){
      .section{padding:56px 0}
      .section-tight{padding:44px 0}
      .section-title{font-size:clamp(24px, 7vw, 32px)}
    }