/* roulang page: index */
:root{
      --bg:#f7f9fc;
      --surface:#ffffff;
      --ink:#17243a;
      --muted:#62718a;
      --brand:#2864be;
      --brand-dark:#1d4c96;
      --soft:#edf5ff;
      --line:#dce5f1;
      --accent:#e98a57;
      --success:#27835e;
      --shadow:0 12px 30px rgba(40,74,124,.09);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;line-height:1.65}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(40,100,190,.32);outline-offset:3px}
    .container{width:min(1200px,calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);border-bottom:1px solid rgba(220,229,241,.9);backdrop-filter:blur(14px)}
    .brand-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:var(--brand);color:#fff;box-shadow:0 7px 16px rgba(40,100,190,.22)}
    .nav-link{position:relative;color:var(--muted);font-size:14px;font-weight:650;transition:.2s ease}
    .nav-link:hover,.nav-link.active{color:var(--brand)}
    .nav-link.active:after{content:"";position:absolute;left:0;right:0;bottom:-17px;height:2px;background:var(--brand);border-radius:3px}
    .btn-primary,.btn-secondary,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;border-radius:11px;padding:0 18px;font-weight:700;font-size:14px;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
    .btn-primary{color:#fff;background:var(--brand);box-shadow:0 8px 18px rgba(40,100,190,.21)}
    .btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(40,100,190,.27)}
    .btn-primary:active,.btn-secondary:active,.btn-ghost:active{transform:translateY(0)}
    .btn-secondary{color:var(--brand);background:#fff;border:1px solid #bfd3ee}
    .btn-secondary:hover{background:var(--soft);border-color:var(--brand)}
    .btn-ghost{color:var(--brand);background:transparent;border:1px solid transparent}
    .btn-ghost:hover{background:var(--soft)}
    .hero-grid{background:linear-gradient(105deg,#eaf4ff 0%,#f5f9ff 54%,#edf3fb 100%);border-bottom:1px solid #d6e5f7}
    .hero-line{height:5px;background:linear-gradient(90deg,var(--brand) 0 27%,#7faee9 27% 65%,#dceafa 65%)}
    .eyebrow{display:inline-flex;align-items:center;gap:7px;padding:5px 10px;border:1px solid #c9ddef;background:rgba(255,255,255,.75);border-radius:999px;color:var(--brand);font-size:12px;font-weight:750;letter-spacing:.04em}
    .dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}
    .summary-panel{position:relative;overflow:hidden;background:#fff;border:1px solid #d5e3f3;border-radius:var(--radius);box-shadow:var(--shadow)}
    .summary-panel:before{content:"";position:absolute;right:-35px;top:-35px;width:130px;height:130px;border-radius:50%;background:#e4f0ff}
    .section{padding:82px 0}
    .section-tight{padding:64px 0}
    .section-kicker{color:var(--brand);font-size:13px;font-weight:750;letter-spacing:.12em}
    .section-title{margin:8px 0 12px;font-size:clamp(25px,3vw,38px);line-height:1.22;font-weight:800;letter-spacing:-.035em}
    .section-copy{max-width:720px;margin:0;color:var(--muted);font-size:15px}
    .metric-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:0 7px 19px rgba(44,74,111,.055);transition:.2s ease}
    .metric-card:hover{border-color:#b9d2ef;transform:translateY(-3px);box-shadow:var(--shadow)}
    .matrix-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:.22s ease}
    .matrix-card:hover{transform:translateY(-4px);border-color:#b8d1ef;box-shadow:0 16px 35px rgba(40,74,124,.12)}
    .num{font-variant-numeric:tabular-nums}
    .tag{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:4px 9px;background:#eef4fb;color:#49637f;font-size:12px;font-weight:650}
    .tag.blue{background:#e5f0ff;color:#2359aa}
    .tag.orange{background:#fff1e9;color:#bd6136}
    .tag.green{background:#e9f7ef;color:#237150}
    .compare-card{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:#fff}
    .compare-card.highlight{border-color:#a9c8ef;background:linear-gradient(150deg,#fafdff,#edf6ff)}
    .check-item{display:flex;gap:10px;padding:11px 0;border-bottom:1px solid #e8eef6;color:#51627c;font-size:14px}
    .check-item:last-child{border-bottom:0}
    .check{width:20px;height:20px;flex:0 0 20px;display:grid;place-items:center;border-radius:50%;background:#dfeeff;color:var(--brand);font-size:12px;font-weight:800;margin-top:2px}
    .progress-track{height:7px;background:#e8eef6;border-radius:999px;overflow:hidden}
    .progress-value{height:100%;border-radius:inherit;background:linear-gradient(90deg,#2864be,#6d9fda)}
    .news-row{display:grid;grid-template-columns:58px 1fr auto;align-items:center;gap:18px;padding:18px 0;border-bottom:1px solid var(--line);transition:.2s ease}
    .news-row:hover{padding-left:10px;background:#fbfdff}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:19px 0;color:var(--ink);font-weight:750;text-align:left;background:transparent;border:0}
    .faq-icon{width:26px;height:26px;display:grid;place-items:center;border:1px solid #c8d9ec;color:var(--brand);border-radius:8px;transition:.2s ease}
    .faq-answer{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .28s ease,padding .28s ease}
    .faq-item.open .faq-answer{max-height:180px;padding:0 38px 19px 0}
    .faq-item.open .faq-icon{background:var(--brand);color:white;transform:rotate(45deg)}
    .form-card{background:#fff;border:1px solid #d6e4f4;border-radius:22px;box-shadow:var(--shadow)}
    label{display:block;margin-bottom:7px;color:#364862;font-size:14px;font-weight:700}
    .field{width:100%;border:1px solid #cddaea;border-radius:10px;background:#fff;padding:12px 13px;color:var(--ink);outline:none;transition:.2s ease}
    .field::placeholder{color:#97a5b8}
    .field:hover{border-color:#a8c1df}
    .field:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(40,100,190,.12)}
    .field.error{border-color:#d96969}
    .footer-link{color:#b9c8da;font-size:14px;transition:.2s ease}
    .footer-link:hover{color:#fff}
    .mobile-menu{display:none}
    @media(max-width:1024px){
      .section{padding:66px 0}
      .nav-link.active:after{bottom:-14px}
    }
    @media(max-width:768px){
      .container{width:min(100% - 28px,1200px)}
      .desktop-nav{display:none}
      .mobile-toggle{display:inline-flex}
      .mobile-menu.open{display:block}
      .nav-link.active:after{display:none}
      .section{padding:54px 0}
      .hero-grid{padding-bottom:30px}
      .news-row{grid-template-columns:44px 1fr}
      .news-row .news-date{grid-column:2}
    }
    @media(max-width:520px){
      .section-title{font-size:27px}
      .btn-primary,.btn-secondary{width:100%}
      .summary-panel{border-radius:14px}
      .metric-card{padding:18px}
      .compare-card{padding:21px}
      .news-row{gap:12px}
    }

/* roulang page: category1 */
:root{
      --bg:#f7f9fc;
      --surface:#fff;
      --ink:#17243a;
      --muted:#62718a;
      --brand:#2864be;
      --brand-dark:#1d4c96;
      --soft:#edf5ff;
      --line:#dce5f1;
      --accent:#e98a57;
      --success:#27835e;
      --shadow:0 12px 30px rgba(40,74,124,.09);
      --radius:18px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;line-height:1.65}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1200px,calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);border-bottom:1px solid rgba(220,229,241,.9);backdrop-filter:blur(14px)}
    .brand-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:var(--brand);color:#fff;box-shadow:0 7px 16px rgba(40,100,190,.22)}
    .nav-link{position:relative;color:var(--muted);font-size:14px;font-weight:650;transition:.2s ease}
    .nav-link:hover,.nav-link.active{color:var(--brand)}
    .nav-link.active:after{content:"";position:absolute;left:0;right:0;bottom:-17px;height:2px;background:var(--brand);border-radius:3px}
    .btn-primary,.btn-secondary,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;border-radius:11px;padding:0 18px;font-weight:700;font-size:14px;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
    .btn-primary{color:#fff;background:var(--brand);box-shadow:0 8px 18px rgba(40,100,190,.21)}
    .btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(40,100,190,.27)}
    .btn-secondary{color:var(--brand);background:#fff;border:1px solid #bfd3ee}
    .btn-secondary:hover{background:var(--soft);border-color:var(--brand)}
    .btn-ghost{color:var(--brand);background:transparent;border:1px solid transparent}
    .btn-ghost:hover{background:var(--soft)}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(40,100,190,.28);outline-offset:3px}
    .hero-grid{background:linear-gradient(105deg,#eaf4ff 0%,#f5f9ff 54%,#edf3fb 100%);border-bottom:1px solid #d6e5f7}
    .hero-line{height:5px;background:linear-gradient(90deg,var(--brand) 0 27%,#7faee9 27% 65%,#dceafa 65%)}
    .eyebrow{display:inline-flex;align-items:center;gap:7px;padding:5px 10px;border:1px solid #c9ddef;background:rgba(255,255,255,.75);border-radius:999px;color:var(--brand);font-size:12px;font-weight:750;letter-spacing:.04em}
    .section{padding:76px 0}
    .section-tight{padding:56px 0}
    .section-kicker{color:var(--brand);font-size:13px;font-weight:750;letter-spacing:.12em}
    .section-title{margin:8px 0 12px;font-size:clamp(25px,3vw,38px);line-height:1.22;font-weight:800;letter-spacing:-.035em}
    .section-copy{max-width:720px;margin:0;color:var(--muted);font-size:15px}
    .matrix-card,.summary-panel,.filter-box,.entry-card,.side-panel,.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .matrix-card,.entry-card,.side-panel{transition:.22s ease}
    .matrix-card:hover,.entry-card:hover{transform:translateY(-3px);border-color:#b8d1ef;box-shadow:0 16px 35px rgba(40,74,124,.12)}
    .tag{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:4px 9px;background:#eef4fb;color:#49637f;font-size:12px;font-weight:650}
    .tag.blue{background:#e5f0ff;color:#2359aa}
    .tag.orange{background:#fff1e9;color:#bd6136}
    .tag.green{background:#e9f7ef;color:#237150}
    .index-number{color:#86a5c9;font-size:12px;font-weight:800;letter-spacing:.08em}
    .filter-input,.filter-select{width:100%;height:44px;padding:0 13px;border:1px solid var(--line);border-radius:10px;background:#fbfdff;color:var(--ink);font-size:14px;transition:.2s}
    .filter-input:hover,.filter-select:hover{border-color:#a8c7e9}
    .filter-input:focus,.filter-select:focus{border-color:var(--brand);background:#fff;outline:3px solid rgba(40,100,190,.12)}
    .filter-chip{display:inline-flex;align-items:center;white-space:nowrap;height:36px;padding:0 13px;border:1px solid var(--line);border-radius:9px;color:var(--muted);font-size:13px;font-weight:650;background:#fff;transition:.2s}
    .filter-chip:hover,.filter-chip.selected{color:var(--brand);border-color:#a9c8ef;background:var(--soft)}
    .entry-card{padding:22px 24px;border-left:4px solid #8cb5e6;border-radius:12px}
    .entry-card.accent{border-left-color:var(--accent)}
    .entry-card.green{border-left-color:#6eb995}
    .entry-card p{color:var(--muted);font-size:14px;line-height:1.75}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:19px 0;color:var(--ink);font-weight:750;text-align:left;background:transparent;border:0}
    .faq-icon{width:26px;height:26px;display:grid;place-items:center;border:1px solid #c8d9ec;color:var(--brand);border-radius:8px;transition:.2s}
    .faq-answer{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .28s ease,padding .28s ease}
    .faq-item.open .faq-answer{max-height:180px;padding:0 38px 19px 0}
    .faq-item.open .faq-icon{background:var(--brand);color:white;transform:rotate(45deg)}
    .form-card{background:#fff;border:1px solid #d6e4f4;border-radius:22px;box-shadow:var(--shadow)}
    .footer-link{color:#b9c8da;font-size:14px;transition:.2s ease}
    .footer-link:hover{color:#fff}
    .mobile-menu{display:none}
    @media(max-width:1024px){.section{padding:64px 0}}
    @media(max-width:768px){
      .container{width:min(100% - 28px,1200px)}
      .desktop-nav{display:none}
      .mobile-toggle{display:inline-flex}
      .mobile-menu.open{display:block}
      .nav-link.active:after{display:none}
      .section{padding:54px 0}
      .hero-grid{padding-bottom:30px}
    }
    @media(min-width:769px){.mobile-toggle{display:none}.desktop-nav{display:flex}}
    @media(max-width:520px){
      .section-title{font-size:27px}
      .btn-primary,.btn-secondary{width:100%}
      .summary-panel{border-radius:14px}
      .entry-card{padding:18px 17px}
    }