/* roulang page: index */
:root{
      --primary:#2563EB;
      --primary-dark:#1D4ED8;
      --accent:#06B6D4;
      --violet:#6366F1;
      --bg:#F7FAFF;
      --bg-soft:#F4F8FF;
      --blue-soft:#EAF2FF;
      --blue-line:#D9E8FF;
      --card:#FFFFFF;
      --text:#172033;
      --muted:#5B667A;
      --weak:#8792A6;
      --border:rgba(37,99,235,.10);
      --border-strong:rgba(37,99,235,.18);
      --shadow:0 12px 32px rgba(37,99,235,.08);
      --shadow-hover:0 18px 44px rgba(37,99,235,.13);
      --radius:24px;
      --radius-sm:16px;
      --max:1220px;
      --ease:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 8% 4%, rgba(37,99,235,.10), transparent 28%),
        radial-gradient(circle at 86% 18%, rgba(6,182,212,.10), transparent 26%),
        linear-gradient(180deg,#FAFCFF 0%,#F7FAFF 55%,#FAFCFF 100%);
      line-height:1.8;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border var(--ease),transform var(--ease),box-shadow var(--ease)}
    a:hover,a:focus{color:var(--primary)}
    button,input{font:inherit}
    input:focus,button:focus,a:focus{outline:3px solid rgba(37,99,235,.18);outline-offset:3px}
    img{max-width:100%;display:block}
    .site-wrap{min-height:100vh}
    .container{
      width:min(var(--max), calc(100% - 40px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      padding:18px 0 8px;
      backdrop-filter:blur(14px);
      background:rgba(247,250,255,.78);
    }
    .nav-panel{
      display:flex;
      align-items:center;
      gap:18px;
      padding:14px;
      background:rgba(255,255,255,.92);
      border:1px solid var(--border);
      border-radius:28px;
      box-shadow:var(--shadow);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:250px;
      color:var(--text);
      font-weight:800;
      letter-spacing:-.01em;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 10px 22px rgba(37,99,235,.22);
      flex:0 0 auto;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.25}
    .brand-text small{font-weight:600;color:var(--weak);font-size:12px;margin-top:2px}
    .nav-links{
      display:flex;
      align-items:center;
      gap:10px;
      flex:1;
      min-width:0;
    }
    .nav-item{
      display:flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:17px;
      border:1px solid var(--border);
      background:#fff;
      color:var(--muted);
      font-weight:700;
      white-space:nowrap;
      box-shadow:0 6px 16px rgba(37,99,235,.04);
    }
    .nav-dot{
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--blue-line);
      box-shadow:0 0 0 5px rgba(37,99,235,.05);
    }
    .nav-item:hover{
      transform:translateY(-2px);
      background:var(--blue-soft);
      border-color:var(--border-strong);
      box-shadow:0 12px 22px rgba(37,99,235,.09);
    }
    .nav-item.active{
      color:var(--primary);
      background:linear-gradient(180deg,#F4F8FF,#FFFFFF);
      border-color:rgba(37,99,235,.28);
    }
    .nav-item.active .nav-dot{background:var(--primary)}
    .nav-cta{
      flex:0 0 auto;
      padding:11px 18px;
      border-radius:999px;
      background:var(--primary);
      color:#fff;
      font-weight:800;
      box-shadow:0 12px 24px rgba(37,99,235,.22);
    }
    .nav-cta:hover{color:#fff;background:var(--primary-dark);transform:translateY(-2px)}
    .section{
      padding:78px 0;
      position:relative;
    }
    .section.tight{padding:54px 0}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:24px;
      margin-bottom:28px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      color:var(--primary);
      background:var(--blue-soft);
      border:1px solid var(--blue-line);
      font-size:13px;
      font-weight:800;
      margin-bottom:12px;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
    }
    h1,h2,h3,p{margin-top:0}
    h1{
      font-size:clamp(30px,4.1vw,48px);
      line-height:1.2;
      letter-spacing:-.04em;
      font-weight:850;
      margin-bottom:18px;
      color:var(--text);
    }
    h2{
      font-size:clamp(24px,3vw,34px);
      line-height:1.28;
      letter-spacing:-.03em;
      font-weight:820;
      margin-bottom:10px;
    }
    h3{
      font-size:20px;
      line-height:1.35;
      font-weight:800;
      margin-bottom:8px;
    }
    .lead{
      color:var(--muted);
      font-size:17px;
      line-height:1.9;
      max-width:760px;
    }
    .muted{color:var(--muted)}
    .btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border-radius:999px;
      padding:12px 20px;
      border:1px solid transparent;
      font-weight:800;
      cursor:pointer;
      min-height:46px;
    }
    .btn.primary{
      background:var(--primary);
      color:#fff;
      box-shadow:0 14px 28px rgba(37,99,235,.22);
    }
    .btn.primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px)}
    .btn.secondary{
      background:#fff;
      color:var(--primary);
      border-color:var(--blue-line);
      box-shadow:0 8px 18px rgba(37,99,235,.06);
    }
    .btn.secondary:hover{background:var(--blue-soft);transform:translateY(-2px)}
    .btn.ghost{
      color:var(--primary);
      background:rgba(234,242,255,.65);
      border-color:rgba(37,99,235,.10);
    }
    .btn.ghost:hover{background:#fff;box-shadow:var(--shadow)}
    .card{
      background:var(--card);
      border:1px solid var(--border);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      transition:transform 220ms ease, box-shadow 220ms ease, border 220ms ease;
    }
    .card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(37,99,235,.22);
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      color:var(--primary);
      background:var(--blue-soft);
      border:1px solid var(--blue-line);
      font-size:13px;
      font-weight:800;
      line-height:1.2;
    }
    .hero{
      padding:48px 0 76px;
    }
    .coupon-stage{
      overflow:hidden;
      position:relative;
      padding:26px;
      border-radius:34px;
      background:
        linear-gradient(135deg, rgba(37,99,235,.10), rgba(6,182,212,.08) 42%, rgba(255,255,255,.96)),
        #fff;
      border:1px solid var(--border);
      box-shadow:0 24px 60px rgba(37,99,235,.10);
    }
    .coupon-stage:before{
      content:"";
      position:absolute;
      inset:auto -70px -90px auto;
      width:240px;
      height:240px;
      border-radius:50%;
      background:rgba(99,102,241,.13);
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.02fr) minmax(360px,.78fr);
      gap:26px;
      align-items:stretch;
      position:relative;
      z-index:1;
    }
    .hero-copy{
      padding:22px 10px 22px 10px;
      display:flex;
      flex-direction:column;
      justify-content:center;
    }
    .hero-copy .lead{max-width:680px;margin-bottom:20px}
    .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 24px}
    .data-points{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:12px;
      margin-top:22px;
      max-width:680px;
    }
    .data-point{
      padding:14px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.72);
      border:1px solid var(--border);
    }
    .data-point strong{
      display:block;
      color:var(--primary);
      font-size:22px;
      line-height:1.2;
      font-weight:900;
    }
    .data-point span{color:var(--muted);font-size:13px;font-weight:700}
    .coupon-wall{
      display:grid;
      grid-template-columns:1fr;
      gap:14px;
      align-content:center;
    }
    .main-coupon{
      position:relative;
      padding:24px;
      min-height:250px;
      border-radius:28px;
      background:
        radial-gradient(circle at 100% 0, rgba(6,182,212,.20), transparent 32%),
        linear-gradient(135deg,#2563EB,#1D4ED8);
      color:#fff;
      box-shadow:0 24px 44px rgba(37,99,235,.28);
      overflow:hidden;
    }
    .main-coupon:before,.main-coupon:after{
      content:"";
      position:absolute;
      top:50%;
      width:28px;
      height:28px;
      border-radius:50%;
      background:#F7FAFF;
      transform:translateY(-50%);
    }
    .main-coupon:before{left:-14px}
    .main-coupon:after{right:-14px}
    .coupon-label{
      display:inline-flex;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.16);
      border:1px solid rgba(255,255,255,.25);
      font-weight:800;
      font-size:13px;
      margin-bottom:18px;
    }
    .main-coupon h2{
      color:#fff;
      font-size:30px;
      margin-bottom:12px;
    }
    .main-coupon p{
      color:rgba(255,255,255,.86);
      margin-bottom:18px;
    }
    .coupon-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:11px 17px;
      border-radius:999px;
      background:#fff;
      color:var(--primary);
      font-weight:900;
    }
    .coupon-btn:hover{background:#EAF2FF;color:var(--primary-dark);transform:translateY(-2px)}
    .mini-coupon-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:14px;
    }
    .mini-coupon{
      padding:16px;
      border-radius:20px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 10px 24px rgba(37,99,235,.07);
    }
    .mini-coupon b{display:block;color:var(--text);margin-bottom:4px}
    .mini-coupon span{color:var(--muted);font-size:13px;line-height:1.55}
    .notice-strip{
      margin-top:16px;
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:14px 16px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--blue-line);
      color:var(--muted);
      font-size:14px;
    }
    .notice-icon{
      width:26px;
      height:26px;
      flex:0 0 auto;
      border-radius:10px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--accent),var(--primary));
      font-weight:900;
    }
    .calendar-board{
      display:grid;
      grid-template-columns:1fr 1.18fr;
      gap:22px;
      align-items:start;
    }
    .calendar-card{
      padding:28px;
      background:linear-gradient(180deg,#fff,#F8FBFF);
    }
    .calendar-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
    .calendar-item{
      display:grid;
      grid-template-columns:78px 1fr auto;
      gap:14px;
      align-items:center;
      padding:16px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 8px 20px rgba(37,99,235,.05);
    }
    .date-badge{
      text-align:center;
      border-radius:16px;
      padding:10px 8px;
      background:var(--blue-soft);
      color:var(--primary);
      font-weight:900;
    }
    .date-badge small{display:block;color:var(--muted);font-size:12px}
    .calendar-item h3{font-size:18px;margin:0 0 2px}
    .calendar-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.6}
    .status-pill{
      padding:7px 10px;
      border-radius:999px;
      background:rgba(6,182,212,.10);
      color:#0789A1;
      font-weight:800;
      font-size:12px;
      white-space:nowrap;
    }
    .topic-layout{
      display:grid;
      grid-template-columns:1.12fr .88fr;
      gap:22px;
    }
    .feature-card{
      padding:30px;
      min-height:310px;
      background:
        linear-gradient(135deg,rgba(37,99,235,.12),rgba(6,182,212,.08)),
        #fff;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .feature-card .big-num{
      color:rgba(37,99,235,.16);
      font-size:76px;
      font-weight:950;
      line-height:1;
      letter-spacing:-.08em;
    }
    .side-stack{display:grid;gap:18px}
    .small-topic{padding:22px}
    .topic-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px}
    .guarantee-strip{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      padding:16px;
      background:#fff;
      border-radius:28px;
      border:1px solid var(--border);
      box-shadow:var(--shadow);
    }
    .guarantee-item{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:16px;
      border-radius:20px;
      background:var(--bg-soft);
      border:1px solid rgba(37,99,235,.07);
    }
    .g-icon{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      flex:0 0 auto;
      font-weight:900;
    }
    .guarantee-item b{display:block;margin-bottom:2px}
    .guarantee-item span{font-size:13px;color:var(--muted);line-height:1.55}
    .dashboard{
      display:grid;
      grid-template-columns:.75fr 1.25fr;
      gap:22px;
      align-items:stretch;
    }
    .score-card{
      padding:30px;
      background:linear-gradient(180deg,#fff,#F4F8FF);
    }
    .score{
      font-size:56px;
      line-height:1;
      color:var(--primary);
      font-weight:950;
      letter-spacing:-.06em;
      margin:18px 0 8px;
    }
    .metric-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:16px;
    }
    .metric{
      padding:22px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 10px 24px rgba(37,99,235,.06);
    }
    .metric strong{
      display:block;
      font-size:30px;
      color:var(--text);
      font-weight:900;
      line-height:1.2;
    }
    .metric span{color:var(--muted);font-size:14px}
    .news-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:22px;
      align-items:start;
    }
    .news-list{
      padding:8px;
      border-radius:26px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow);
    }
    .news-item{
      display:grid;
      grid-template-columns:120px 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px;
      border-radius:20px;
      border-bottom:1px solid rgba(37,99,235,.08);
    }
    .news-item:last-child{border-bottom:0}
    .news-item:hover{background:var(--bg-soft)}
    .news-item .type{
      display:inline-flex;
      justify-content:center;
      padding:7px 10px;
      border-radius:999px;
      background:var(--blue-soft);
      color:var(--primary);
      font-weight:800;
      font-size:13px;
    }
    .news-item h3{font-size:18px;margin:0 0 4px}
    .news-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
    .news-arrow{color:var(--primary);font-weight:900}
    .recommend-card{
      padding:24px;
      position:sticky;
      top:126px;
    }
    .recommend-list{display:grid;gap:12px;margin-top:16px}
    .recommend-row{
      display:flex;
      gap:12px;
      padding:13px;
      border-radius:17px;
      background:var(--bg-soft);
      border:1px solid rgba(37,99,235,.07);
    }
    .rank{
      width:30px;
      height:30px;
      border-radius:11px;
      background:#fff;
      color:var(--primary);
      display:grid;
      place-items:center;
      font-weight:900;
      flex:0 0 auto;
    }
    .recommend-row b{display:block;font-size:14px}
    .recommend-row span{font-size:12px;color:var(--muted)}
    .guide-wrap{
      display:grid;
      grid-template-columns:360px 1fr;
      gap:22px;
    }
    .guide-intro{
      padding:28px;
      background:linear-gradient(135deg,#fff,#F4F8FF);
    }
    .steps{
      display:grid;
      gap:14px;
      counter-reset:step;
    }
    .step{
      counter-increment:step;
      display:grid;
      grid-template-columns:52px 1fr;
      gap:16px;
      padding:20px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 10px 22px rgba(37,99,235,.06);
    }
    .step:before{
      content:counter(step);
      width:52px;
      height:52px;
      border-radius:18px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--violet));
      color:#fff;
      font-weight:950;
      font-size:20px;
    }
    .step p{margin:0;color:var(--muted);font-size:14px}
    .faq-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    .faq-card{
      padding:22px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 8px 22px rgba(37,99,235,.05);
    }
    .faq-card h3{font-size:18px}
    .faq-card p{margin:0;color:var(--muted);font-size:15px;line-height:1.75}
    .cta-card{
      display:grid;
      grid-template-columns:1fr 420px;
      gap:28px;
      align-items:center;
      padding:34px;
      border-radius:32px;
      background:
        radial-gradient(circle at 8% 0, rgba(6,182,212,.16), transparent 28%),
        linear-gradient(135deg,#F4F8FF,#FFFFFF 58%,#EAF2FF);
      border:1px solid var(--border);
      box-shadow:var(--shadow);
    }
    .subscribe-box{
      padding:18px;
      border-radius:24px;
      background:rgba(255,255,255,.86);
      border:1px solid var(--border);
    }
    .subscribe-form{
      display:flex;
      gap:10px;
      margin-bottom:10px;
    }
    .subscribe-form input{
      flex:1;
      min-width:0;
      height:48px;
      border-radius:999px;
      border:1px solid var(--blue-line);
      padding:0 16px;
      background:#fff;
      color:var(--text);
      box-shadow:none;
      margin:0;
    }
    .subscribe-form input:focus{
      border-color:rgba(37,99,235,.52);
      box-shadow:0 0 0 4px rgba(37,99,235,.10);
    }
    .form-tip{font-size:12px;color:var(--weak);line-height:1.6;margin:0}
    .site-footer{
      padding:44px 0 30px;
      background:linear-gradient(180deg,rgba(234,242,255,.46),rgba(255,255,255,.84));
      border-top:1px solid var(--border);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .95fr;
      gap:24px;
      margin-bottom:24px;
    }
    .footer-card{
      padding:22px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 8px 20px rgba(37,99,235,.05);
    }
    .footer-title{
      font-weight:900;
      font-size:18px;
      margin-bottom:10px;
      color:var(--text);
    }
    .footer-card p,.footer-card li{
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
    }
    .footer-card ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
    .footer-card a{color:var(--muted);font-weight:700}
    .footer-card a:hover{color:var(--primary)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:var(--weak);
      font-size:13px;
      padding-top:18px;
      border-top:1px solid rgba(37,99,235,.08);
    }
    .mobile-quick{
      display:none;
      position:fixed;
      left:14px;
      right:14px;
      bottom:14px;
      z-index:60;
      padding:10px;
      border-radius:20px;
      background:rgba(255,255,255,.94);
      border:1px solid var(--border);
      box-shadow:0 18px 42px rgba(37,99,235,.18);
      backdrop-filter:blur(12px);
    }
    .mobile-quick a{
      width:100%;
      justify-content:center;
      padding:10px 12px;
      min-height:42px;
    }
    @media (max-width:1100px){
      .nav-panel{flex-wrap:wrap}
      .brand{min-width:0;flex:1}
      .nav-links{order:3;flex-basis:100%;overflow-x:auto;padding-bottom:2px}
      .hero-grid,.calendar-board,.topic-layout,.dashboard,.guide-wrap,.cta-card{grid-template-columns:1fr}
      .news-layout{grid-template-columns:1fr}
      .recommend-card{position:static}
      .guarantee-strip{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px, var(--max))}
      .site-header{padding-top:12px}
      .nav-panel{border-radius:22px;padding:12px;gap:12px}
      .brand-mark{width:38px;height:38px}
      .brand-text strong{font-size:14px}
      .brand-text small{display:none}
      .nav-cta{padding:9px 13px;font-size:13px}
      .nav-links{
        display:grid;
        grid-auto-flow:column;
        grid-auto-columns:max-content;
        gap:8px;
      }
      .nav-item{padding:9px 12px;font-size:13px;border-radius:14px}
      .section{padding:54px 0}
      .hero{padding:32px 0 54px}
      .coupon-stage{padding:18px;border-radius:26px}
      .hero-copy{padding:8px 2px}
      .data-points,.mini-coupon-grid,.metric-grid,.faq-grid,.footer-grid{grid-template-columns:1fr}
      .main-coupon{min-height:auto;padding:22px}
      .main-coupon h2{font-size:24px}
      .section-head{display:block}
      .calendar-item{grid-template-columns:64px 1fr;align-items:start}
      .calendar-item .status-pill{grid-column:2}
      .guarantee-strip{grid-template-columns:1fr;padding:10px}
      .news-item{grid-template-columns:1fr;gap:8px}
      .news-arrow{display:none}
      .subscribe-form{flex-direction:column}
      .subscribe-form .btn{width:100%}
      .copyright{display:block}
      .mobile-quick{display:block}
      body{padding-bottom:72px}
    }
    @media (max-width:520px){
      h1{font-size:29px}
      h2{font-size:23px}
      .lead{font-size:15px}
      .btn-row .btn{width:100%}
      .coupon-stage,.cta-card{border-radius:24px}
      .card{border-radius:20px}
      .footer-grid{gap:16px}
    }

/* roulang page: category1 */
:root{
      --primary:#2563EB;
      --primary-dark:#1D4ED8;
      --accent:#06B6D4;
      --violet:#6366F1;
      --bg:#F7FAFF;
      --bg-soft:#F4F8FF;
      --blue-soft:#EAF2FF;
      --blue-line:#D9E8FF;
      --card:#FFFFFF;
      --text:#172033;
      --muted:#5B667A;
      --weak:#8792A6;
      --border:rgba(37,99,235,.10);
      --border-strong:rgba(37,99,235,.20);
      --shadow:0 12px 32px rgba(37,99,235,.08);
      --shadow-hover:0 18px 44px rgba(37,99,235,.13);
      --radius-xl:26px;
      --radius-lg:20px;
      --radius-md:16px;
      --radius-pill:999px;
      --container:1200px;
      --section:82px;
      --transition:220ms ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 4%, rgba(37,99,235,.10), transparent 28%),
        radial-gradient(circle at 88% 16%, rgba(6,182,212,.10), transparent 24%),
        linear-gradient(180deg,#FAFCFF 0%,var(--bg) 45%,#FFFFFF 100%);
      line-height:1.82;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color var(--transition),background var(--transition),border-color var(--transition),box-shadow var(--transition),transform var(--transition)}
    a:hover,a:focus{color:var(--primary)}
    button,input{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    ::selection{background:rgba(37,99,235,.16);color:var(--primary-dark)}
    .container{
      width:min(var(--container),calc(100% - 40px));
      margin:0 auto;
    }

    .site-header{
      padding:24px 0 10px;
      position:relative;
      z-index:20;
    }
    .nav-panel{
      min-height:86px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:14px;
      background:rgba(255,255,255,.92);
      border:1px solid var(--border);
      border-radius:28px;
      box-shadow:var(--shadow);
      backdrop-filter:blur(16px);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:270px;
      padding:8px 10px;
      border-radius:20px;
    }
    .brand:hover{background:var(--blue-soft);transform:translateY(-1px)}
    .brand-mark{
      width:48px;
      height:48px;
      display:grid;
      place-items:center;
      border-radius:17px;
      color:#fff;
      font-weight:800;
      font-size:22px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 12px 24px rgba(37,99,235,.22);
      flex:0 0 auto;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.25}
    .brand-text strong{
      font-size:17px;
      font-weight:800;
      color:var(--text);
      letter-spacing:-.02em;
      white-space:nowrap;
    }
    .brand-text small{
      margin-top:4px;
      color:var(--weak);
      font-size:12px;
      white-space:nowrap;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:10px;
      flex:1;
      justify-content:center;
    }
    .nav-item{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:46px;
      padding:11px 15px;
      border-radius:16px;
      background:#fff;
      border:1px solid var(--border);
      color:var(--muted);
      font-weight:700;
      font-size:14px;
      box-shadow:0 8px 20px rgba(37,99,235,.045);
      white-space:nowrap;
    }
    .nav-dot{
      width:9px;
      height:9px;
      border-radius:999px;
      background:#C7D7F4;
      box-shadow:0 0 0 4px rgba(37,99,235,.06);
      transition:background var(--transition),box-shadow var(--transition);
    }
    .nav-item:hover{
      background:var(--blue-soft);
      border-color:var(--border-strong);
      transform:translateY(-2px);
      box-shadow:0 12px 24px rgba(37,99,235,.09);
    }
    .nav-item:hover .nav-dot{background:var(--primary)}
    .nav-item.active{
      background:linear-gradient(180deg,#F4F8FF,#EAF2FF);
      color:var(--primary-dark);
      border-color:rgba(37,99,235,.34);
      box-shadow:0 12px 24px rgba(37,99,235,.10);
    }
    .nav-item.active .nav-dot{
      background:var(--primary);
      box-shadow:0 0 0 4px rgba(37,99,235,.14);
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:48px;
      padding:12px 20px;
      border-radius:var(--radius-pill);
      background:var(--primary);
      color:#fff;
      font-weight:800;
      font-size:14px;
      box-shadow:0 14px 28px rgba(37,99,235,.18);
      white-space:nowrap;
    }
    .nav-cta:hover,.nav-cta:focus{
      color:#fff;
      background:var(--primary-dark);
      transform:translateY(-2px);
      box-shadow:0 18px 34px rgba(37,99,235,.25);
    }

    main{position:relative}
    .section{padding:var(--section) 0}
    .section.compact{padding-top:54px}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:var(--blue-soft);
      color:var(--primary-dark);
      border:1px solid var(--border);
      font-size:13px;
      font-weight:800;
      margin-bottom:18px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:linear-gradient(135deg,var(--primary),var(--accent));
    }
    h1,h2,h3,p{margin-top:0}
    h1{
      font-size:clamp(32px,4.3vw,48px);
      line-height:1.2;
      letter-spacing:-.04em;
      font-weight:800;
      margin-bottom:20px;
      color:var(--text);
    }
    h2{
      font-size:clamp(24px,3vw,34px);
      line-height:1.26;
      letter-spacing:-.03em;
      font-weight:800;
      margin-bottom:14px;
    }
    h3{
      font-size:20px;
      line-height:1.36;
      font-weight:800;
      margin-bottom:10px;
    }
    .lead{
      color:var(--muted);
      font-size:17px;
      line-height:1.9;
      max-width:720px;
      margin-bottom:0;
    }
    .muted{color:var(--muted)}
    .text-small{font-size:14px;color:var(--weak);line-height:1.75}

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:48px;
      padding:12px 22px;
      border-radius:var(--radius-pill);
      font-weight:800;
      border:1px solid transparent;
      line-height:1.2;
      transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),color var(--transition);
    }
    .btn.primary{
      background:var(--primary);
      color:#fff;
      box-shadow:0 14px 28px rgba(37,99,235,.18);
    }
    .btn.primary:hover,.btn.primary:focus{
      color:#fff;
      background:var(--primary-dark);
      transform:translateY(-2px);
      box-shadow:0 18px 34px rgba(37,99,235,.25);
    }
    .btn.secondary{
      background:#fff;
      color:var(--primary-dark);
      border-color:var(--border-strong);
      box-shadow:0 10px 22px rgba(37,99,235,.06);
    }
    .btn.secondary:hover,.btn.secondary:focus{
      background:var(--blue-soft);
      transform:translateY(-2px);
      box-shadow:0 14px 28px rgba(37,99,235,.12);
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      border-radius:999px;
      background:#fff;
      color:var(--muted);
      border:1px solid var(--border);
      font-size:13px;
      font-weight:700;
      box-shadow:0 8px 18px rgba(37,99,235,.045);
    }
    .tag b{
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--accent);
      display:inline-block;
    }

    .category-hero{
      padding:46px 0 36px;
    }
    .hero-wrap{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(360px,.72fr);
      gap:30px;
      align-items:stretch;
    }
    .hero-copy{
      padding:38px;
      border-radius:32px;
      background:rgba(255,255,255,.82);
      border:1px solid var(--border);
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .hero-copy::after{
      content:"";
      position:absolute;
      right:-80px;
      bottom:-120px;
      width:260px;
      height:260px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(6,182,212,.16),transparent 68%);
      pointer-events:none;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
      position:relative;
      z-index:1;
    }
    .notice-strip{
      display:flex;
      align-items:flex-start;
      gap:12px;
      margin-top:24px;
      padding:14px 16px;
      border-radius:18px;
      background:linear-gradient(180deg,#F4F8FF,#FFFFFF);
      border:1px solid var(--border);
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
      position:relative;
      z-index:1;
    }
    .notice-icon{
      width:30px;
      height:30px;
      border-radius:11px;
      display:grid;
      place-items:center;
      background:var(--blue-soft);
      color:var(--primary);
      flex:0 0 auto;
      font-weight:900;
    }
    .overview-card{
      border-radius:32px;
      background:linear-gradient(160deg,#FFFFFF 0%,#F4F8FF 58%,#EAF2FF 100%);
      border:1px solid var(--border);
      box-shadow:var(--shadow);
      padding:26px;
      overflow:hidden;
      position:relative;
    }
    .overview-card::before{
      content:"";
      position:absolute;
      inset:18px 18px auto auto;
      width:92px;
      height:92px;
      border-radius:28px;
      background:linear-gradient(135deg,rgba(37,99,235,.14),rgba(6,182,212,.12));
      transform:rotate(8deg);
    }
    .status-bar{
      position:relative;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:13px 14px;
      border-radius:18px;
      background:rgba(255,255,255,.78);
      border:1px solid var(--border);
      margin-bottom:18px;
      font-size:13px;
      font-weight:800;
      color:var(--primary-dark);
    }
    .status-pill{
      padding:5px 9px;
      border-radius:999px;
      background:var(--blue-soft);
      color:var(--primary-dark);
      font-size:12px;
      white-space:nowrap;
    }
    .overview-list{
      position:relative;
      display:grid;
      gap:12px;
      margin:0;
      list-style:none;
    }
    .overview-item{
      display:grid;
      grid-template-columns:42px 1fr;
      gap:12px;
      align-items:start;
      padding:15px;
      border-radius:20px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 10px 22px rgba(37,99,235,.05);
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .overview-item:hover{
      transform:translateY(-3px);
      border-color:var(--border-strong);
      box-shadow:var(--shadow-hover);
    }
    .num{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:15px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      color:#fff;
      font-weight:900;
    }
    .overview-item strong{
      display:block;
      font-weight:800;
      margin-bottom:3px;
      color:var(--text);
    }
    .overview-item span{
      display:block;
      color:var(--muted);
      font-size:14px;
      line-height:1.65;
    }

    .filter-panel{
      padding:26px;
      border-radius:28px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow);
    }
    .filter-top{
      display:flex;
      justify-content:space-between;
      gap:18px;
      align-items:flex-start;
      margin-bottom:20px;
    }
    .filter-controls{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .filter-btn{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:42px;
      padding:10px 14px;
      border-radius:15px;
      background:var(--bg-soft);
      color:var(--muted);
      border:1px solid var(--border);
      font-weight:800;
      font-size:14px;
    }
    .filter-btn:hover,.filter-btn:focus,.filter-btn.active{
      background:var(--blue-soft);
      color:var(--primary-dark);
      border-color:rgba(37,99,235,.30);
      transform:translateY(-2px);
    }
    .filter-btn .mini-dot{
      width:8px;height:8px;border-radius:50%;background:#B9C8E6;
    }
    .filter-btn.active .mini-dot{background:var(--primary)}
    .update-line{
      margin-top:18px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      color:var(--weak);
      font-size:13px;
    }
    .update-line span{
      padding:6px 10px;
      border-radius:999px;
      background:#F8FBFF;
      border:1px solid var(--border);
    }

    .content-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:28px;
      align-items:start;
    }
    .index-list{
      display:grid;
      gap:18px;
    }
    .index-card{
      border-radius:24px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow);
      padding:24px;
      display:grid;
      grid-template-columns:1fr auto;
      gap:20px;
      align-items:start;
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .index-card:hover{
      transform:translateY(-3px);
      border-color:var(--border-strong);
      box-shadow:var(--shadow-hover);
    }
    .card-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:12px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      padding:6px 10px;
      border-radius:999px;
      background:var(--blue-soft);
      color:var(--primary-dark);
      font-size:12px;
      font-weight:900;
      line-height:1;
    }
    .badge.soft{
      background:#F6FAFF;
      color:var(--muted);
      border:1px solid var(--border);
    }
    .index-card h3{margin-bottom:8px}
    .index-card p{
      color:var(--muted);
      line-height:1.8;
      margin-bottom:14px;
      max-width:720px;
    }
    .card-foot{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      color:var(--weak);
      font-size:13px;
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:var(--primary-dark);
      font-weight:900;
    }
    .text-link:hover{gap:10px}
    .index-action{
      align-self:center;
      white-space:nowrap;
    }
    .side-stack{
      position:sticky;
      top:18px;
      display:grid;
      gap:16px;
    }
    .side-card{
      padding:22px;
      border-radius:24px;
      background:linear-gradient(180deg,#FFFFFF,#F8FBFF);
      border:1px solid var(--border);
      box-shadow:var(--shadow);
    }
    .side-card h3{
      font-size:18px;
      margin-bottom:10px;
    }
    .side-list{
      list-style:none;
      margin:14px 0 0;
      padding:0;
      display:grid;
      gap:10px;
    }
    .side-list li{
      display:flex;
      gap:10px;
      color:var(--muted);
      font-size:14px;
      line-height:1.65;
    }
    .check{
      width:20px;
      height:20px;
      border-radius:8px;
      display:grid;
      place-items:center;
      background:var(--blue-soft);
      color:var(--primary);
      font-weight:900;
      flex:0 0 auto;
      margin-top:2px;
    }

    .principle-wrap{
      border-radius:32px;
      padding:32px;
      background:linear-gradient(135deg,#EAF2FF,#FFFFFF 55%,#F7FAFF);
      border:1px solid var(--border);
      box-shadow:var(--shadow);
    }
    .principle-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px;
      margin-top:24px;
    }
    .principle-card{
      padding:22px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 10px 24px rgba(37,99,235,.06);
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .principle-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-hover);
      border-color:var(--border-strong);
    }
    .principle-card .num{
      width:36px;
      height:36px;
      border-radius:13px;
      margin-bottom:14px;
      font-size:14px;
    }

    .faq-head{
      max-width:760px;
      margin-bottom:26px;
    }
    .accordion{
      background:transparent;
      border:0;
    }
    .accordion-item{
      margin-bottom:12px;
      border-radius:20px;
      overflow:hidden;
      border:1px solid var(--border);
      background:#fff;
      box-shadow:0 10px 24px rgba(37,99,235,.055);
    }
    .accordion-title{
      border:0;
      padding:20px 56px 20px 22px;
      color:var(--text);
      font-weight:900;
      font-size:16px;
      line-height:1.5;
      background:#fff;
    }
    .accordion-title::before{
      right:22px;
      margin-top:-8px;
      color:var(--primary);
      font-size:22px;
      font-weight:700;
    }
    .accordion-title:hover,.accordion-title:focus{
      background:var(--blue-soft);
      color:var(--primary-dark);
    }
    .is-active>.accordion-title{
      background:linear-gradient(180deg,#F4F8FF,#FFFFFF);
      color:var(--primary-dark);
    }
    .accordion-content{
      border:0;
      padding:0 22px 22px;
      color:var(--muted);
      line-height:1.85;
      background:linear-gradient(180deg,#FFFFFF,#F8FBFF);
    }

    .cta-card{
      display:grid;
      grid-template-columns:1fr 380px;
      gap:26px;
      align-items:center;
      padding:34px;
      border-radius:34px;
      background:
        radial-gradient(circle at 88% 10%,rgba(6,182,212,.18),transparent 28%),
        linear-gradient(135deg,#EAF2FF,#FFFFFF 48%,#F4F8FF);
      border:1px solid var(--border);
      box-shadow:var(--shadow);
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
    }
    .subscribe-box{
      padding:20px;
      border-radius:24px;
      background:rgba(255,255,255,.82);
      border:1px solid var(--border);
      box-shadow:0 10px 24px rgba(37,99,235,.06);
    }
    .input-group{
      display:flex;
      gap:10px;
      margin:0 0 10px;
    }
    .email-input{
      flex:1;
      min-width:0;
      height:48px;
      border-radius:999px;
      border:1px solid var(--border-strong);
      background:#fff;
      padding:0 16px;
      box-shadow:none;
      color:var(--text);
      margin:0;
    }
    .email-input:focus{
      border-color:var(--primary);
      box-shadow:0 0 0 4px rgba(37,99,235,.12);
      background:#fff;
    }
    .submit-btn{
      height:48px;
      border:0;
      border-radius:999px;
      padding:0 18px;
      background:var(--primary);
      color:#fff;
      font-weight:900;
      white-space:nowrap;
      transition:transform var(--transition),box-shadow var(--transition),background var(--transition);
    }
    .submit-btn:hover,.submit-btn:focus{
      background:var(--primary-dark);
      transform:translateY(-2px);
      box-shadow:0 14px 26px rgba(37,99,235,.22);
    }

    .site-footer{
      margin-top:30px;
      padding:48px 0 28px;
      background:linear-gradient(180deg,#F8FBFF,#FFFFFF);
      border-top:1px solid var(--border);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .75fr 1fr;
      gap:18px;
    }
    .footer-card{
      padding:22px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 10px 24px rgba(37,99,235,.055);
    }
    .footer-title{
      font-weight:900;
      color:var(--text);
      margin-bottom:10px;
      font-size:17px;
    }
    .footer-card p{
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
      margin:0;
    }
    .footer-card ul{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:8px;
    }
    .footer-card a{
      color:var(--muted);
      font-weight:700;
      font-size:14px;
    }
    .footer-card a:hover{color:var(--primary)}
    .copyright{
      margin-top:20px;
      padding-top:18px;
      border-top:1px solid var(--border);
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:10px;
      color:var(--weak);
      font-size:13px;
    }

    @media (max-width: 1199px){
      :root{--section:68px}
      .container{width:min(100% - 32px, var(--container))}
      .nav-panel{align-items:stretch;flex-wrap:wrap}
      .brand{min-width:auto;flex:1}
      .nav-links{order:3;width:100%;justify-content:flex-start;overflow-x:auto;padding-bottom:2px}
      .nav-item{flex:0 0 auto}
      .hero-wrap{grid-template-columns:1fr}
      .content-layout{grid-template-columns:1fr}
      .side-stack{position:static;grid-template-columns:repeat(2,1fr)}
      .cta-card{grid-template-columns:1fr}
    }
    @media (max-width: 767px){
      :root{--section:54px}
      body{font-size:15px}
      .container{width:min(100% - 24px, var(--container))}
      .site-header{padding:14px 0 6px}
      .nav-panel{border-radius:22px;padding:12px;gap:12px}
      .brand{width:100%;padding:6px}
      .brand-mark{width:44px;height:44px;border-radius:15px}
      .brand-text strong{font-size:15px;white-space:normal}
      .brand-text small{white-space:normal}
      .nav-cta{width:100%;min-height:44px}
      .nav-links{
        display:grid;
        grid-template-columns:repeat(2,minmax(0,1fr));
        overflow:visible;
        gap:8px;
      }
      .nav-item{
        justify-content:center;
        min-height:42px;
        padding:9px 10px;
        font-size:13px;
      }
      .category-hero{padding:28px 0 20px}
      .hero-copy,.overview-card{padding:24px;border-radius:26px}
      .hero-actions,.cta-actions{flex-direction:column}
      .btn{width:100%}
      .filter-top{display:block}
      .filter-controls{margin-top:16px}
      .filter-btn{flex:1 1 calc(50% - 10px);justify-content:center}
      .index-card{grid-template-columns:1fr;padding:20px}
      .index-action{justify-self:start}
      .side-stack{grid-template-columns:1fr}
      .principle-wrap{padding:22px;border-radius:26px}
      .principle-grid{grid-template-columns:1fr}
      .cta-card{padding:24px;border-radius:28px}
      .input-group{flex-direction:column}
      .submit-btn,.email-input{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:grid}
    }
    @media (max-width: 520px){
      h1{font-size:30px}
      h2{font-size:24px}
      .tag-row{gap:8px}
      .tag{font-size:12px}
      .overview-item{grid-template-columns:36px 1fr;padding:13px}
      .num{width:36px;height:36px;border-radius:13px;font-size:13px}
      .accordion-title{padding:18px 48px 18px 18px}
      .accordion-content{padding:0 18px 18px}
    }