/* roulang page: index */
:root{
      --primary:#2563EB;
      --primary-strong:#1D4ED8;
      --secondary:#38BDF8;
      --accent:#F59E0B;
      --bg:#F6F9FF;
      --bg-soft:#FAFCFF;
      --card:#FFFFFF;
      --text:#1F2937;
      --muted:#64748B;
      --weak:#94A3B8;
      --border:#E2E8F0;
      --line:#EDF2F7;
      --success:#16A34A;
      --danger:#EF4444;
      --radius-lg:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --shadow:0 12px 30px rgba(37,99,235,.08);
      --shadow-hover:0 18px 42px rgba(37,99,235,.14);
      --nav-width:212px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 20% 10%, rgba(56,189,248,.18), transparent 28%),
        radial-gradient(circle at 85% 18%, rgba(37,99,235,.12), transparent 32%),
        linear-gradient(180deg,#F6F9FF 0%,#FFFFFF 48%,#F8FBFF 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(37,99,235,.16)}
    .site-shell{min-height:100vh}
    .container{
      width:min(1180px, calc(100% - 48px));
      margin:0 auto;
    }
    .desktop-sidebar{
      position:fixed;
      inset:18px auto 18px 18px;
      width:var(--nav-width);
      z-index:50;
      display:flex;
      flex-direction:column;
      gap:18px;
      padding:18px 14px;
      background:rgba(255,255,255,.92);
      border:1px solid rgba(226,232,240,.9);
      border-radius:26px;
      box-shadow:var(--shadow);
      backdrop-filter:blur(16px);
    }
    .brand-block{
      display:flex;
      align-items:center;
      gap:10px;
      padding:10px 8px 16px;
      border-bottom:1px solid var(--line);
    }
    .brand-mark{
      width:42px;height:42px;border-radius:16px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      color:#fff;font-weight:800;
      box-shadow:0 10px 22px rgba(37,99,235,.22);
      flex:0 0 auto;
    }
    .brand-name{
      font-weight:800;
      font-size:14px;
      line-height:1.35;
      letter-spacing:.2px;
      color:#0F172A;
    }
    .side-nav{
      display:flex;
      flex-direction:column;
      gap:8px;
      padding:6px 0;
    }
    .nav-link{
      position:relative;
      display:flex;
      align-items:center;
      gap:10px;
      min-height:46px;
      padding:10px 12px;
      color:var(--muted);
      border-radius:16px;
      font-size:14px;
      font-weight:700;
      transition:.22s ease;
      outline:none;
    }
    .nav-link svg{width:19px;height:19px;stroke-width:2}
    .nav-link:hover{
      color:var(--primary);
      background:#EFF6FF;
      transform:translateX(2px);
    }
    .nav-link.active{
      color:var(--primary);
      background:#EAF3FF;
    }
    .nav-link.active:before{
      content:"";
      position:absolute;
      left:0;
      top:13px;
      bottom:13px;
      width:4px;
      border-radius:999px;
      background:var(--primary);
    }
    .side-note{
      margin-top:auto;
      padding:14px;
      border-radius:18px;
      background:linear-gradient(180deg,#EFF6FF,#FFFFFF);
      border:1px solid #DBEAFE;
      color:var(--muted);
      font-size:12px;
      line-height:1.6;
    }
    .side-note strong{display:block;color:var(--primary);font-size:13px;margin-bottom:4px}
    .mobile-header{display:none}
    .main-area{
      margin-left:calc(var(--nav-width) + 36px);
      padding:18px 0 0;
    }
    .section{padding:78px 0}
    .section.compact{padding:54px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:28px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:#EFF6FF;
      color:var(--primary);
      border:1px solid #DBEAFE;
      font-size:13px;
      font-weight:800;
    }
    .section-title{
      margin:12px 0 0;
      font-size:34px;
      line-height:1.2;
      letter-spacing:-.5px;
      color:#0F172A;
      font-weight:900;
    }
    .section-desc{
      max-width:660px;
      margin:12px 0 0;
      color:var(--muted);
      font-size:16px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:800;
      font-size:15px;
      transition:.22s ease;
      outline:none;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#3B82F6);
      box-shadow:0 12px 24px rgba(37,99,235,.22);
    }
    .btn-primary:hover{transform:translateY(-2px);background:linear-gradient(135deg,var(--primary-strong),var(--primary));box-shadow:0 18px 34px rgba(37,99,235,.3)}
    .btn-secondary{
      color:var(--primary);
      background:#fff;
      border:1px solid #BFDBFE;
    }
    .btn-secondary:hover{background:#EFF6FF;transform:translateY(-2px)}
    .btn-text{
      color:var(--primary);
      font-weight:800;
      display:inline-flex;
      align-items:center;
      gap:6px;
      transition:.22s ease;
    }
    .btn-text:hover{text-decoration:underline;gap:10px}
    .btn:focus-visible,.nav-link:focus-visible,.faq-summary:focus-visible,.filter-pill:focus-visible{
      outline:3px solid rgba(37,99,235,.22);
      outline-offset:3px;
    }
    .hero{
      padding:38px 0 72px;
    }
    .hero-stage{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg,rgba(37,99,235,.96),rgba(56,189,248,.82) 54%,#FFFFFF 160%);
      box-shadow:0 22px 60px rgba(37,99,235,.18);
      color:#fff;
      min-height:520px;
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:26px;
      padding:48px;
      isolation:isolate;
    }
    .hero-stage:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
      background-size:34px 34px;
      opacity:.42;
      z-index:-2;
    }
    .hero-stage:after{
      content:"";
      position:absolute;
      width:360px;height:360px;
      right:-110px;top:-120px;
      border-radius:50%;
      background:rgba(255,255,255,.22);
      filter:blur(2px);
      z-index:-1;
    }
    .promo-sticker{
      position:absolute;
      top:26px;
      right:34px;
      width:108px;
      height:108px;
      border-radius:32px;
      transform:rotate(8deg);
      display:grid;
      place-items:center;
      text-align:center;
      background:#FFFBEB;
      color:#B45309;
      font-weight:900;
      line-height:1.25;
      box-shadow:0 16px 30px rgba(146,64,14,.18);
      border:1px solid rgba(245,158,11,.26);
    }
    .hero-copy{
      align-self:center;
      max-width:720px;
    }
    .hero h1{
      margin:18px 0 18px;
      font-size:48px;
      line-height:1.14;
      letter-spacing:-1px;
      font-weight:950;
    }
    .hero-intro{
      max-width:720px;
      color:rgba(255,255,255,.9);
      font-size:17px;
      line-height:1.85;
      margin:0 0 26px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin:24px 0 26px;
    }
    .hero .btn-secondary{border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.94)}
    .data-points{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:18px;
    }
    .data-chip{
      min-width:142px;
      padding:12px 14px;
      border-radius:18px;
      background:rgba(255,255,255,.15);
      border:1px solid rgba(255,255,255,.24);
      backdrop-filter:blur(10px);
    }
    .data-chip strong{display:block;font-size:22px;line-height:1.1}
    .data-chip span{font-size:12px;color:rgba(255,255,255,.78)}
    .hero-matrix{
      align-self:end;
      display:grid;
      grid-template-columns:1fr;
      gap:14px;
      padding-top:78px;
    }
    .matrix-card{
      background:rgba(255,255,255,.94);
      color:var(--text);
      border-radius:24px;
      padding:20px;
      border:1px solid rgba(255,255,255,.68);
      box-shadow:0 16px 36px rgba(15,23,42,.09);
      transform:translateY(var(--shift));
      transition:.25s ease;
    }
    .matrix-card:hover{transform:translateY(calc(var(--shift) - 4px))}
    .matrix-card:nth-child(1){--shift:0px;margin-left:30px}
    .matrix-card:nth-child(2){--shift:0px;margin-right:28px}
    .matrix-card:nth-child(3){--shift:0px;margin-left:64px}
    .matrix-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
    .matrix-icon{
      width:40px;height:40px;border-radius:15px;
      display:grid;place-items:center;
      background:#EFF6FF;color:var(--primary);
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:5px;
      border-radius:999px;
      padding:6px 10px;
      font-size:12px;
      line-height:1;
      font-weight:800;
      background:#E0F2FE;
      color:#0369A1;
      border:1px solid #BAE6FD;
    }
    .badge.orange{background:#FEF3C7;color:#B45309;border-color:#FDE68A}
    .badge.green{background:#DCFCE7;color:#15803D;border-color:#BBF7D0}
    .matrix-card h3{font-size:18px;margin:0 0 6px;font-weight:900;color:#0F172A}
    .matrix-card p{font-size:14px;margin:0;color:var(--muted);line-height:1.7}
    .play-card-track{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:18px;
    }
    .vertical-card{
      min-height:330px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      padding:22px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow);
      transition:.24s ease;
      position:relative;
      overflow:hidden;
    }
    .vertical-card:before{
      content:attr(data-index);
      position:absolute;
      top:16px;right:18px;
      font-size:54px;
      line-height:1;
      font-weight:950;
      color:rgba(37,99,235,.08);
    }
    .vertical-card:hover{
      transform:translateY(-6px);
      border-color:#BFDBFE;
      box-shadow:var(--shadow-hover);
    }
    .card-visual{
      width:56px;height:72px;border-radius:18px;
      display:grid;place-items:center;
      color:#fff;
      font-weight:900;
      background:linear-gradient(160deg,var(--primary),var(--secondary));
      box-shadow:0 12px 22px rgba(37,99,235,.18);
      margin-bottom:18px;
    }
    .vertical-card h3{font-size:21px;line-height:1.25;margin:0 0 10px;font-weight:900;color:#0F172A}
    .vertical-card p{font-size:14px;color:var(--muted);margin:0 0 16px;line-height:1.7}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
    .tag{
      display:inline-flex;
      align-items:center;
      border-radius:999px;
      padding:5px 9px;
      background:#EFF6FF;
      color:var(--primary);
      font-size:12px;
      font-weight:800;
    }
    .guide-panel{
      display:grid;
      grid-template-columns:.42fr .58fr;
      gap:24px;
      align-items:stretch;
    }
    .check-panel,.result-panel{
      background:#fff;
      border:1px solid var(--border);
      border-radius:26px;
      box-shadow:var(--shadow);
      padding:28px;
    }
    .check-list{display:flex;flex-direction:column;gap:0;margin-top:18px}
    .check-item{
      display:flex;
      gap:14px;
      padding:17px 0;
      border-bottom:1px solid var(--line);
    }
    .check-item:last-child{border-bottom:0}
    .check-num{
      width:30px;height:30px;
      border-radius:12px;
      display:grid;place-items:center;
      flex:0 0 auto;
      background:#EFF6FF;
      color:var(--primary);
      font-weight:900;
      font-size:13px;
    }
    .check-item strong{display:block;font-size:16px;color:#0F172A;margin-bottom:3px}
    .check-item span{display:block;font-size:14px;color:var(--muted);line-height:1.65}
    .result-panel{
      background:
        linear-gradient(180deg,#FFFFFF 0%,#F8FBFF 100%);
      position:relative;
      overflow:hidden;
    }
    .result-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:14px;
      margin:22px 0;
    }
    .mini-stat{
      border-radius:18px;
      padding:16px;
      background:#fff;
      border:1px solid var(--line);
    }
    .mini-stat strong{display:block;color:var(--primary);font-size:24px;line-height:1.1}
    .mini-stat span{font-size:13px;color:var(--muted)}
    .reward-grid{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:18px;
    }
    .reward-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:24px;
      box-shadow:var(--shadow);
      padding:24px;
      transition:.22s ease;
    }
    .reward-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#BFDBFE}
    .reward-card.featured{
      border-color:#93C5FD;
      background:linear-gradient(180deg,#EFF6FF,#fff);
    }
    .reward-card h3{font-size:20px;margin:12px 0 8px;font-weight:900;color:#0F172A}
    .reward-card p{font-size:14px;color:var(--muted);margin:0 0 16px}
    .progress-board{
      background:#fff;
      border:1px solid var(--border);
      border-radius:28px;
      padding:28px;
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:28px;
      align-items:center;
    }
    .progress-line{
      height:12px;
      border-radius:999px;
      background:#EAF3FF;
      overflow:hidden;
      margin:18px 0;
    }
    .progress-line span{
      display:block;height:100%;width:72%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--secondary));
    }
    .step-list{display:grid;gap:12px}
    .step-item{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:14px;
      border-radius:18px;
      background:#F8FBFF;
      border:1px solid var(--line);
    }
    .step-dot{
      width:24px;height:24px;border-radius:50%;
      background:#DBEAFE;color:var(--primary);
      display:grid;place-items:center;
      flex:0 0 auto;
      font-size:12px;font-weight:900;
    }
    .news-layout{
      display:grid;
      grid-template-columns:1.3fr .7fr;
      gap:24px;
    }
    .news-list,.recommend-box{
      background:#fff;
      border:1px solid var(--border);
      border-radius:26px;
      box-shadow:var(--shadow);
      padding:22px;
    }
    .news-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      align-items:center;
      gap:14px;
      padding:16px 0;
      border-bottom:1px solid var(--line);
    }
    .news-item:last-child{border-bottom:0}
    .news-date{
      min-width:78px;
      text-align:center;
      border-radius:14px;
      padding:8px 10px;
      background:#EFF6FF;
      color:var(--primary);
      font-size:12px;
      font-weight:900;
    }
    .news-item h3{font-size:16px;margin:0 0 3px;font-weight:900;color:#0F172A}
    .news-item p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}
    .recommend-box{
      background:linear-gradient(180deg,#EFF6FF,#FFFFFF);
    }
    .recommend-box h3{font-size:22px;line-height:1.28;margin:0 0 12px;font-weight:950;color:#0F172A}
    .recommend-box p{color:var(--muted);font-size:14px}
    .feedback-scroll{
      display:flex;
      gap:16px;
      overflow-x:auto;
      padding:4px 4px 18px;
      scroll-snap-type:x mandatory;
    }
    .feedback-scroll::-webkit-scrollbar{height:8px}
    .feedback-scroll::-webkit-scrollbar-thumb{background:#C7D2FE;border-radius:999px}
    .feedback-card{
      flex:0 0 310px;
      scroll-snap-align:start;
      background:#fff;
      border:1px solid var(--border);
      border-radius:22px;
      box-shadow:var(--shadow);
      padding:20px;
    }
    .feedback-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
    .avatar{
      width:40px;height:40px;border-radius:50%;
      display:grid;place-items:center;
      background:linear-gradient(135deg,#DBEAFE,#BAE6FD);
      color:var(--primary);
      font-weight:900;
    }
    .stars{color:#F59E0B;letter-spacing:1px;font-size:13px}
    .feedback-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.75}
    .faq-wrap{
      display:grid;
      grid-template-columns:.36fr .64fr;
      gap:24px;
      align-items:start;
    }
    .faq-list{
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .faq-item{
      background:#fff;
      border:1px solid var(--border);
      border-radius:20px;
      box-shadow:0 8px 22px rgba(37,99,235,.06);
      overflow:hidden;
      transition:.22s ease;
    }
    .faq-item[open]{border-color:#BFDBFE;box-shadow:var(--shadow)}
    .faq-summary{
      list-style:none;
      padding:18px 20px;
      font-size:17px;
      font-weight:900;
      color:#0F172A;
      cursor:pointer;
      display:flex;
      justify-content:space-between;
      gap:14px;
      min-height:58px;
      align-items:center;
    }
    .faq-summary::-webkit-details-marker{display:none}
    .faq-summary:after{
      content:"+";
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      background:#EFF6FF;color:var(--primary);
      flex:0 0 auto;
      transition:.2s ease;
    }
    .faq-item[open] .faq-summary:after{content:"−";background:var(--primary);color:#fff}
    .faq-answer{
      padding:0 20px 20px 20px;
      color:var(--muted);
      font-size:15px;
      line-height:1.8;
      border-top:1px solid var(--line);
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      border-radius:30px;
      padding:36px;
      background:
        radial-gradient(circle at 80% 20%,rgba(255,255,255,.72),transparent 24%),
        linear-gradient(135deg,#DBEAFE,#EFF6FF 45%,#FFFFFF);
      border:1px solid #BFDBFE;
      box-shadow:var(--shadow-hover);
      display:grid;
      grid-template-columns:1fr auto;
      align-items:center;
      gap:28px;
    }
    .cta-panel h2{font-size:32px;line-height:1.2;margin:8px 0 12px;font-weight:950;color:#0F172A}
    .cta-panel p{color:var(--muted);margin:0;max-width:680px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
    .footer{
      margin-top:60px;
      background:#EEF4FF;
      border-top:1px solid #DBEAFE;
      padding:42px 0 28px;
      color:var(--muted);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      gap:12px;
      align-items:center;
      margin-bottom:12px;
      color:#0F172A;
      font-weight:900;
    }
    .footer-links{
      display:flex;
      gap:14px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .footer-links a{
      color:var(--muted);
      font-weight:800;
      padding:8px 10px;
      border-radius:12px;
      transition:.2s ease;
    }
    .footer-links a:hover{color:var(--primary);background:#DBEAFE}
    .copyright{
      margin-top:24px;
      padding-top:18px;
      border-top:1px solid #DCE8FA;
      font-size:13px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }
    .backtop{
      position:fixed;
      right:22px;
      bottom:22px;
      width:46px;height:46px;
      border-radius:16px;
      display:grid;place-items:center;
      background:var(--primary);
      color:#fff;
      box-shadow:0 16px 30px rgba(37,99,235,.25);
      opacity:0;
      pointer-events:none;
      transform:translateY(10px);
      transition:.22s ease;
      z-index:60;
    }
    .backtop.show{opacity:1;pointer-events:auto;transform:translateY(0)}
    @media (max-width:1180px){
      :root{--nav-width:188px}
      .hero-stage{grid-template-columns:1fr;padding:40px}
      .hero-matrix{grid-template-columns:repeat(3,minmax(0,1fr));padding-top:0}
      .matrix-card:nth-child(n){margin:0}
      .play-card-track{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:1023px){
      .desktop-sidebar{display:none}
      .mobile-header{
        position:sticky;
        top:0;
        z-index:70;
        display:block;
        background:rgba(255,255,255,.94);
        border-bottom:1px solid var(--border);
        backdrop-filter:blur(16px);
      }
      .mobile-bar{
        min-height:62px;
        display:flex;
        align-items:center;
        justify-content:space-between;
        gap:14px;
        width:min(1180px, calc(100% - 32px));
        margin:0 auto;
      }
      .mobile-brand{
        display:flex;align-items:center;gap:10px;font-weight:900;color:#0F172A;
        font-size:14px;line-height:1.25;
      }
      .menu-btn{
        width:44px;height:44px;border-radius:14px;
        background:#EFF6FF;color:var(--primary);
        display:grid;place-items:center;
      }
      .mobile-menu{
        display:none;
        width:min(1180px, calc(100% - 32px));
        margin:0 auto 12px;
        padding:10px;
        border-radius:18px;
        background:#EFF6FF;
        border:1px solid #DBEAFE;
      }
      .mobile-menu.open{display:grid;gap:8px}
      .mobile-menu .nav-link{background:#fff}
      .main-area{margin-left:0;padding:0}
      .container{width:min(1180px, calc(100% - 32px))}
      .section{padding:62px 0}
      .hero{padding-top:22px}
      .hero h1{font-size:38px}
      .hero-matrix{grid-template-columns:1fr}
      .guide-panel,.progress-board,.news-layout,.faq-wrap,.cta-panel{grid-template-columns:1fr}
      .reward-grid{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:767px){
      .hero-stage{padding:28px 20px;min-height:auto;border-radius:24px}
      .promo-sticker{position:static;width:auto;height:auto;transform:none;display:inline-flex;padding:10px 14px;border-radius:999px;margin-bottom:14px}
      .hero h1{font-size:32px;letter-spacing:-.3px}
      .hero-intro{font-size:15px}
      .hero-actions{flex-direction:column}
      .btn{width:100%}
      .data-chip{flex:1 1 100%}
      .section-head{display:block}
      .section-title{font-size:27px}
      .play-card-track{
        display:flex;
        overflow-x:auto;
        scroll-snap-type:x mandatory;
        padding:4px 4px 16px;
      }
      .vertical-card{
        min-width:260px;
        scroll-snap-align:start;
      }
      .result-grid{grid-template-columns:1fr}
      .news-item{grid-template-columns:1fr;align-items:start}
      .news-date{width:max-content}
      .cta-panel{padding:26px 20px}
      .cta-panel h2{font-size:26px}
      .footer{padding-bottom:84px}
    }
    @media (max-width:520px){
      .mobile-brand span{max-width:220px}
      .section{padding:52px 0}
      .check-panel,.result-panel,.progress-board,.news-list,.recommend-box{padding:20px}
      .feedback-card{flex-basis:280px}
      .copyright{display:block}
    }

/* roulang page: category1 */
:root{
      --primary:#2563EB;
      --primary-dark:#1D4ED8;
      --primary-soft:#EFF6FF;
      --secondary:#38BDF8;
      --accent:#F59E0B;
      --success:#10B981;
      --bg:#F6F9FF;
      --bg-soft:#FAFCFF;
      --surface:#FFFFFF;
      --text:#1F2937;
      --muted:#64748B;
      --weak:#94A3B8;
      --border:#E2E8F0;
      --line:#EDF2F7;
      --shadow:0 12px 30px rgba(37,99,235,.08);
      --shadow-hover:0 18px 42px rgba(37,99,235,.13);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --nav-width:220px;
      --nav-compact:96px;
      --container:1180px;
      --transition:all .22s ease;
      --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 78% 6%, rgba(56,189,248,.16), transparent 28%),
        radial-gradient(circle at 18% 16%, rgba(37,99,235,.10), transparent 28%),
        linear-gradient(180deg,#F6F9FF 0%,#FFFFFF 46%,#FAFCFF 100%);
      line-height:1.75;
      font-size:16px;
      min-height:100vh;
    }
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0;background:none}
    ::selection{background:rgba(37,99,235,.14);color:var(--primary-dark)}
    :focus-visible{outline:3px solid rgba(37,99,235,.25);outline-offset:3px}

    .container{
      width:min(100% - 48px,var(--container));
      margin-inline:auto;
    }
    .layout{
      display:flex;
      min-height:100vh;
    }
    .sidebar{
      width:var(--nav-width);
      position:sticky;
      top:0;
      height:100vh;
      padding:22px 16px;
      background:rgba(255,255,255,.92);
      border-right:1px solid var(--border);
      backdrop-filter:blur(12px);
      z-index:30;
      display:flex;
      flex-direction:column;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-height:54px;
      padding:10px 8px;
      color:var(--text);
      font-weight:800;
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:38px;
      height:38px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      flex:0 0 auto;
      border-radius:14px;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      color:#fff;
      font-weight:900;
      box-shadow:0 10px 20px rgba(37,99,235,.20);
    }
    .brand-text{
      font-size:15px;
      line-height:1.32;
    }
    .side-nav{
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .nav-link{
      position:relative;
      display:flex;
      align-items:center;
      gap:11px;
      min-height:48px;
      padding:12px 13px;
      border-radius:16px;
      color:var(--muted);
      font-weight:700;
      transition:var(--transition);
    }
    .nav-link svg{
      width:20px;
      height:20px;
      stroke-width:2;
      flex:0 0 auto;
    }
    .nav-link:hover{
      background:var(--primary-soft);
      color:var(--primary);
      transform:translateX(2px);
    }
    .nav-link.active{
      background:linear-gradient(90deg,rgba(37,99,235,.12),rgba(56,189,248,.10));
      color:var(--primary);
      box-shadow:inset 4px 0 0 var(--primary);
    }
    .nav-note{
      margin-top:auto;
      padding:14px;
      border:1px solid var(--border);
      background:#fff;
      border-radius:18px;
      color:var(--muted);
      font-size:13px;
      box-shadow:0 10px 24px rgba(15,23,42,.04);
    }
    .nav-note strong{display:block;color:var(--primary);margin-bottom:3px}

    .mobile-header{
      display:none;
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.96);
      border-bottom:1px solid var(--border);
      backdrop-filter:blur(12px);
    }
    .mobile-bar{
      height:62px;
      width:min(100% - 28px,var(--container));
      margin:auto;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
    }
    .menu-toggle{
      width:44px;
      height:44px;
      border-radius:14px;
      border:1px solid var(--border);
      color:var(--primary);
      background:#fff;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      transition:var(--transition);
    }
    .menu-toggle:hover{background:var(--primary-soft);border-color:#BFDBFE}
    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after{
      content:"";
      display:block;
      width:18px;
      height:2px;
      background:currentColor;
      border-radius:99px;
      transition:var(--transition);
    }
    .menu-toggle span::before{transform:translateY(-6px)}
    .menu-toggle span::after{transform:translateY(4px)}
    .mobile-menu{
      display:none;
      width:min(100% - 28px,var(--container));
      margin:0 auto 14px;
      padding:12px;
      border:1px solid var(--border);
      border-radius:20px;
      background:linear-gradient(180deg,#fff,#F8FBFF);
      box-shadow:var(--shadow);
    }
    .mobile-menu.open{display:block}
    .mobile-menu .side-nav{gap:8px}

    .page{
      flex:1;
      min-width:0;
    }
    main{overflow:hidden}
    .section{
      padding:78px 0;
    }
    .section-tight{padding:54px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary);
      background:rgba(37,99,235,.08);
      border:1px solid rgba(37,99,235,.12);
      padding:7px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:800;
      margin-bottom:16px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:99px;
      background:var(--secondary);
      box-shadow:0 0 0 5px rgba(56,189,248,.12);
    }
    h1,h2,h3,p{margin-top:0}
    h1{
      font-size:clamp(32px,5vw,50px);
      line-height:1.18;
      letter-spacing:-.045em;
      margin-bottom:18px;
      color:#0F172A;
    }
    h2{
      font-size:clamp(25px,3.2vw,36px);
      line-height:1.25;
      letter-spacing:-.03em;
      color:#0F172A;
      margin-bottom:14px;
    }
    h3{
      font-size:20px;
      line-height:1.35;
      color:#111827;
      margin-bottom:10px;
    }
    .lead{
      font-size:17px;
      color:var(--muted);
      max-width:760px;
      margin-bottom:0;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-head .lead{max-width:660px}
    .muted{color:var(--muted)}
    .small{font-size:13px;color:var(--weak)}

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:800;
      transition:var(--transition);
      white-space:nowrap;
    }
    .btn-primary{
      background:var(--primary);
      color:#fff;
      box-shadow:0 12px 24px rgba(37,99,235,.22);
    }
    .btn-primary:hover{
      background:var(--primary-dark);
      transform:translateY(-2px);
      box-shadow:0 18px 34px rgba(37,99,235,.28);
    }
    .btn-secondary{
      background:#fff;
      color:var(--primary);
      border:1px solid #BFDBFE;
    }
    .btn-secondary:hover{
      background:var(--primary-soft);
      transform:translateY(-2px);
    }
    .btn-text{
      color:var(--primary);
      font-weight:800;
      display:inline-flex;
      align-items:center;
      gap:6px;
    }
    .btn-text:hover{text-decoration:underline}
    .btn-text:hover span{transform:translateX(3px)}
    .btn-text span{transition:var(--transition)}

    .badge,.tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:800;
      line-height:1.2;
    }
    .tag{background:var(--primary-soft);color:var(--primary)}
    .tag.orange{background:#FFF7ED;color:#C2410C}
    .tag.green{background:#ECFDF5;color:#047857}
    .badge{background:#fff;border:1px solid var(--border);color:var(--muted)}

    .hero{
      padding:42px 0 72px;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      margin:22px 0 24px;
      color:var(--muted);
      font-size:14px;
    }
    .breadcrumb a{color:var(--primary);font-weight:800}
    .breadcrumb span:not(:last-child)::after{
      content:"/";
      color:var(--weak);
      margin-left:8px;
      font-weight:400;
    }
    .hero-panel{
      position:relative;
      border:1px solid rgba(226,232,240,.9);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,rgba(255,255,255,.94),rgba(239,246,255,.92)),
        radial-gradient(circle at 80% 10%,rgba(56,189,248,.18),transparent 26%);
      box-shadow:var(--shadow);
      padding:34px;
      overflow:hidden;
    }
    .hero-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(37,99,235,.05) 1px,transparent 1px),
        linear-gradient(90deg,rgba(37,99,235,.05) 1px,transparent 1px);
      background-size:28px 28px;
      mask-image:linear-gradient(120deg,transparent 0%,#000 20%,transparent 80%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:minmax(0,1.1fr) 360px;
      gap:30px;
      align-items:stretch;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:26px;
    }
    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .progress-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:26px;
      padding:24px;
      box-shadow:0 16px 36px rgba(37,99,235,.10);
    }
    .progress-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:18px;
    }
    .ring-wrap{
      display:grid;
      grid-template-columns:136px 1fr;
      gap:18px;
      align-items:center;
    }
    .ring{
      width:136px;
      height:136px;
      border-radius:50%;
      background:
        conic-gradient(var(--primary) 0 76%, #DBEAFE 76% 100%);
      display:grid;
      place-items:center;
      position:relative;
      box-shadow:inset 0 0 0 1px rgba(37,99,235,.08);
    }
    .ring::after{
      content:"";
      width:102px;
      height:102px;
      border-radius:50%;
      background:#fff;
      position:absolute;
    }
    .ring strong{
      position:relative;
      z-index:1;
      color:var(--primary);
      font-size:28px;
      line-height:1;
    }
    .ring small{
      display:block;
      color:var(--muted);
      font-size:12px;
      margin-top:5px;
      text-align:center;
    }
    .tier-list{
      display:grid;
      gap:10px;
      margin-top:20px;
    }
    .tier{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px;
      border-radius:16px;
      background:#F8FBFF;
      border:1px solid var(--line);
    }
    .tier strong{font-size:14px}
    .tier span{font-size:13px;color:var(--muted)}

    .filter-bar{
      display:flex;
      gap:10px;
      padding:10px;
      border:1px solid var(--border);
      background:#fff;
      border-radius:22px;
      box-shadow:0 10px 24px rgba(15,23,42,.04);
      overflow-x:auto;
      scrollbar-width:thin;
      margin-bottom:28px;
    }
    .filter-pill{
      flex:0 0 auto;
      min-height:40px;
      padding:9px 15px;
      border-radius:999px;
      color:var(--muted);
      font-weight:800;
      transition:var(--transition);
      border:1px solid transparent;
    }
    .filter-pill:hover{background:var(--primary-soft);color:var(--primary)}
    .filter-pill.active{
      background:var(--primary);
      color:#fff;
      box-shadow:0 10px 20px rgba(37,99,235,.18);
    }

    .content-layout{
      display:grid;
      grid-template-columns:260px minmax(0,1fr);
      gap:28px;
      align-items:start;
    }
    .index-panel{
      position:sticky;
      top:24px;
      background:#fff;
      border:1px solid var(--border);
      border-radius:24px;
      padding:18px;
      box-shadow:var(--shadow);
    }
    .index-panel h3{font-size:18px;margin-bottom:14px}
    .index-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:8px;
    }
    .index-list a{
      display:flex;
      align-items:center;
      gap:10px;
      padding:10px 12px;
      border-radius:14px;
      color:var(--muted);
      font-weight:700;
      transition:var(--transition);
    }
    .index-list a::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:#BFDBFE;
      flex:0 0 auto;
    }
    .index-list a:hover,
    .index-list a.active{
      background:var(--primary-soft);
      color:var(--primary);
    }

    .card-stream{
      display:grid;
      gap:16px;
    }
    .info-card{
      position:relative;
      background:#fff;
      border:1px solid var(--border);
      border-radius:22px;
      padding:22px;
      box-shadow:0 10px 24px rgba(15,23,42,.04);
      transition:var(--transition);
      overflow:hidden;
    }
    .info-card::before{
      content:"";
      position:absolute;
      left:0;
      top:0;
      bottom:0;
      width:4px;
      background:linear-gradient(180deg,var(--primary),var(--secondary));
      opacity:.75;
    }
    .info-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-hover);
      border-color:#BFDBFE;
    }
    .card-head{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:18px;
      margin-bottom:12px;
    }
    .card-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:12px;
    }
    .card-actions{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      border-top:1px solid var(--line);
      padding-top:16px;
      margin-top:16px;
    }
    .status-dot{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--muted);
      font-size:13px;
      font-weight:700;
    }
    .status-dot::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--success);
      box-shadow:0 0 0 5px rgba(16,185,129,.10);
    }

    .compare-wrap{
      background:#fff;
      border:1px solid var(--border);
      border-radius:26px;
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .compare-table{
      width:100%;
      border-collapse:collapse;
      min-width:760px;
    }
    .table-scroll{overflow-x:auto}
    .compare-table th,
    .compare-table td{
      padding:16px 18px;
      text-align:left;
      border-bottom:1px solid var(--line);
      vertical-align:top;
    }
    .compare-table th{
      background:#EFF6FF;
      color:var(--primary-dark);
      font-weight:900;
      white-space:nowrap;
    }
    .compare-table tr:hover td{background:#FAFCFF}
    .compare-table tr:last-child td{border-bottom:0}

    .check-grid{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:26px;
      align-items:stretch;
    }
    .check-panel,
    .result-panel{
      background:#fff;
      border:1px solid var(--border);
      border-radius:26px;
      padding:26px;
      box-shadow:var(--shadow);
    }
    .check-list{
      list-style:none;
      padding:0;
      margin:18px 0 0;
      display:grid;
      gap:12px;
    }
    .check-list li{
      display:grid;
      grid-template-columns:34px 1fr;
      gap:12px;
      padding:14px;
      border-radius:18px;
      border:1px solid var(--line);
      background:#FAFCFF;
      transition:var(--transition);
    }
    .check-list li:hover{
      background:var(--primary-soft);
      border-color:#BFDBFE;
    }
    .check-icon{
      width:34px;
      height:34px;
      border-radius:12px;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      color:#fff;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      font-weight:900;
    }
    .result-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
      margin:20px 0;
    }
    .metric{
      border:1px solid var(--line);
      background:#F8FBFF;
      border-radius:18px;
      padding:16px;
    }
    .metric strong{
      display:block;
      color:var(--primary);
      font-size:25px;
      line-height:1.1;
      margin-bottom:6px;
    }
    .metric span{color:var(--muted);font-size:13px}

    .feedback-row{
      display:flex;
      gap:14px;
      overflow-x:auto;
      scroll-snap-type:x mandatory;
      padding:6px 2px 16px;
      scrollbar-width:thin;
    }
    .feedback-card{
      flex:0 0 330px;
      scroll-snap-align:start;
      background:#fff;
      border:1px solid var(--border);
      border-radius:22px;
      padding:18px;
      box-shadow:0 10px 24px rgba(15,23,42,.04);
      transition:var(--transition);
    }
    .feedback-card:hover{
      transform:translateY(-2px);
      box-shadow:var(--shadow);
      border-color:#BFDBFE;
    }
    .feedback-top{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:12px;
    }
    .avatar{
      width:38px;
      height:38px;
      border-radius:50%;
      background:linear-gradient(135deg,#DBEAFE,#BAE6FD);
      color:var(--primary);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      font-weight:900;
    }
    .stars{
      color:#F59E0B;
      letter-spacing:1px;
      font-size:13px;
    }

    .faq-wrap{
      display:grid;
      gap:12px;
      max-width:900px;
    }
    details{
      background:#fff;
      border:1px solid var(--border);
      border-radius:20px;
      box-shadow:0 8px 20px rgba(15,23,42,.04);
      overflow:hidden;
      transition:var(--transition);
    }
    details[open]{
      border-color:#BFDBFE;
      box-shadow:var(--shadow);
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:18px 22px;
      font-weight:900;
      color:#111827;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      min-height:58px;
    }
    summary::-webkit-details-marker{display:none}
    summary::after{
      content:"+";
      width:28px;
      height:28px;
      border-radius:50%;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:var(--primary-soft);
      color:var(--primary);
      font-weight:900;
      flex:0 0 auto;
    }
    details[open] summary{
      border-bottom:1px solid var(--line);
      box-shadow:inset 4px 0 0 var(--primary);
    }
    details[open] summary::after{content:"−"}
    .faq-body{
      padding:16px 22px 20px;
      color:var(--muted);
    }

    .cta{
      padding:74px 0 88px;
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:28px;
      align-items:center;
      border-radius:30px;
      border:1px solid #BFDBFE;
      background:
        radial-gradient(circle at 82% 16%,rgba(56,189,248,.26),transparent 25%),
        linear-gradient(135deg,#EFF6FF,#FFFFFF);
      padding:34px;
      box-shadow:var(--shadow);
    }
    .cta-panel::after{
      content:"";
      position:absolute;
      right:-70px;
      bottom:-70px;
      width:210px;
      height:210px;
      border-radius:50%;
      background:rgba(37,99,235,.08);
    }
    .step-cards{
      position:relative;
      z-index:1;
      display:grid;
      gap:12px;
    }
    .step-card{
      display:flex;
      align-items:center;
      gap:12px;
      padding:14px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 8px 18px rgba(15,23,42,.04);
    }
    .step-num{
      width:34px;
      height:34px;
      border-radius:12px;
      background:var(--primary);
      color:#fff;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      font-weight:900;
      flex:0 0 auto;
    }

    .footer{
      background:#EEF4FF;
      border-top:1px solid var(--border);
      padding:44px 0 28px;
      color:var(--muted);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      gap:28px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#0F172A;
      font-weight:900;
      margin-bottom:12px;
    }
    .footer .brand-mark{
      width:34px;
      height:34px;
      border-radius:12px;
    }
    .max-w-2xl{max-width:680px}
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-end;
    }
    .footer-links a{
      padding:9px 12px;
      border-radius:999px;
      background:#fff;
      border:1px solid rgba(226,232,240,.9);
      font-weight:800;
      color:var(--muted);
      transition:var(--transition);
    }
    .footer-links a:hover{
      color:var(--primary);
      background:var(--primary-soft);
      border-color:#BFDBFE;
    }
    .copyright{
      margin-top:28px;
      padding-top:20px;
      border-top:1px solid rgba(148,163,184,.22);
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      font-size:13px;
      color:#718096;
    }

    @media (max-width:1100px){
      .sidebar{width:var(--nav-compact);align-items:center}
      .brand{padding:8px;justify-content:center}
      .brand-text,.nav-link span,.nav-note{display:none}
      .nav-link{justify-content:center;width:58px;padding:12px}
      .nav-link.active{box-shadow:inset 0 -4px 0 var(--primary)}
      .hero-grid,.cta-panel{grid-template-columns:1fr}
      .progress-card{max-width:620px}
    }
    @media (max-width:900px){
      .content-layout,.check-grid{grid-template-columns:1fr}
      .index-panel{position:static}
      .index-list{grid-template-columns:repeat(2,1fr)}
      .section-head{display:block}
      .section-head .lead{margin-top:8px}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:768px){
      body{font-size:15px}
      .layout{display:block}
      .sidebar{display:none}
      .mobile-header{display:block}
      .container{width:min(100% - 28px,var(--container))}
      .hero{padding:24px 0 50px}
      .section{padding:58px 0}
      .section-tight{padding:42px 0}
      .hero-panel,.cta-panel{padding:22px;border-radius:24px}
      .breadcrumb{margin:18px 0}
      .ring-wrap{grid-template-columns:1fr;text-align:center}
      .ring{margin:auto}
      .hero-actions{flex-direction:column}
      .btn{width:100%}
      .filter-bar{border-radius:18px}
      .index-list{grid-template-columns:1fr}
      .card-head,.card-actions{display:block}
      .card-actions .btn-text{margin-top:10px}
      .result-grid{grid-template-columns:1fr}
      .feedback-card{flex-basis:86%}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      h1{letter-spacing:-.03em}
      .brand-text{display:block;font-size:13px}
      .mobile-bar .brand{gap:9px;padding:0;min-height:auto}
      .mobile-bar .brand-mark{width:34px;height:34px}
      .tier{align-items:flex-start;flex-direction:column}
      .compare-table{min-width:660px}
      summary{padding:16px}
      .faq-body{padding:14px 16px 18px}
    }