/* roulang page: index */
:root{
      --primary:#124c7f;
      --primary-700:#0b365c;
      --primary-900:#071f39;
      --accent:#2fb7d3;
      --accent-soft:#e7f7fb;
      --gold:#f2b84b;
      --success:#1f9d6a;
      --danger:#dc6255;
      --bg:#f5f8fc;
      --surface:#ffffff;
      --surface-2:#eef4fb;
      --text:#152033;
      --muted:#66758a;
      --light-text:#f7fbff;
      --border:#d9e3ef;
      --border-strong:#b8c9dc;
      --shadow-sm:0 8px 20px rgba(16,56,92,.08);
      --shadow-md:0 18px 42px rgba(16,56,92,.13);
      --shadow-lg:0 28px 70px rgba(16,56,92,.18);
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:26px;
      --radius-xl:34px;
      --section:92px;
      --nav-h:74px;
      --font: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK 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 10% 0%, rgba(47,183,211,.12), transparent 32%),
        linear-gradient(180deg,#f9fbff 0%, var(--bg) 42%, #ffffff 100%);
      line-height:1.72;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease}
    a:hover{color:var(--primary)}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(47,183,211,.24);color:var(--primary-900)}
    .container{max-width:1180px}
    .section{padding:var(--section) 0}
    .section-tight{padding:70px 0}
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:var(--accent-soft);
      color:var(--primary);
      font-size:14px;
      font-weight:700;
      letter-spacing:.03em;
      margin-bottom:16px;
    }
    .section-kicker::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(47,183,211,.14);
    }
    .section-title{
      font-size:clamp(28px,3.2vw,44px);
      line-height:1.18;
      font-weight:900;
      letter-spacing:-.03em;
      margin:0 0 16px;
      color:var(--primary-900);
    }
    .section-lead{
      color:var(--muted);
      font-size:17px;
      max-width:760px;
      margin:0;
    }
    .text-muted-custom{color:var(--muted)}
    .divider{height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent);margin:30px 0}

    .site-header{
      position:sticky;
      top:0;
      z-index:1030;
      background:rgba(255,255,255,.96);
      backdrop-filter:saturate(180%) blur(16px);
      border-bottom:1px solid rgba(184,201,220,.75);
      box-shadow:0 8px 22px rgba(7,31,57,.05);
    }
    .gov-topbar{
      background:linear-gradient(90deg,var(--primary-900),var(--primary-700));
      color:#dcecff;
      font-size:13px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .gov-topbar .container{
      min-height:38px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .topbar-left,.topbar-right{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
    .topbar-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#f5fbff;
      opacity:.96;
    }
    .topbar-dot{
      width:7px;height:7px;border-radius:999px;background:var(--gold);
      box-shadow:0 0 0 4px rgba(242,184,75,.16);
    }
    .navbar{
      min-height:var(--nav-h);
      padding:12px 0;
    }
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:var(--primary-900)!important;
      font-weight:900;
      letter-spacing:-.02em;
      white-space:normal;
      max-width:360px;
      line-height:1.18;
    }
    .brand-mark{
      width:44px;height:44px;
      display:grid;
      place-items:center;
      border-radius:14px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      color:white;
      box-shadow:0 12px 28px rgba(18,76,127,.22);
      font-weight:900;
      flex:0 0 auto;
    }
    .brand-text small{
      display:block;
      font-size:12px;
      color:var(--muted);
      font-weight:700;
      letter-spacing:.08em;
      margin-top:3px;
    }
    .navbar-toggler{
      border:1px solid var(--border);
      border-radius:12px;
      padding:8px 10px;
      box-shadow:none!important;
      background:#fff;
    }
    .navbar-toggler:focus{outline:3px solid rgba(47,183,211,.24)}
    .navbar-nav{gap:8px}
    .nav-link{
      color:#263950!important;
      font-weight:800;
      padding:10px 16px!important;
      border-radius:12px;
      position:relative;
    }
    .nav-link:hover{background:var(--surface-2);color:var(--primary)!important}
    .nav-link.active{
      color:#fff!important;
      background:linear-gradient(135deg,var(--primary),var(--primary-700));
      box-shadow:0 10px 22px rgba(18,76,127,.17);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:18px;
    }
    .nav-search{
      display:flex;
      align-items:center;
      gap:8px;
      background:#f3f7fb;
      border:1px solid var(--border);
      border-radius:999px;
      padding:6px 8px 6px 14px;
      min-width:250px;
    }
    .nav-search input{
      border:0;
      outline:0;
      background:transparent;
      width:100%;
      color:var(--text);
      font-size:14px;
    }
    .nav-search input::placeholder{color:#8797aa}
    .search-btn{
      border:0;
      width:32px;height:32px;
      border-radius:999px;
      background:var(--primary);
      color:#fff;
      display:grid;
      place-items:center;
      transition:transform .2s ease, background .2s ease;
    }
    .search-btn:hover{background:var(--primary-700);transform:translateY(-1px)}
    .btn-custom{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border:0;
      border-radius:999px;
      padding:13px 20px;
      font-weight:900;
      line-height:1;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
      cursor:pointer;
      white-space:nowrap;
    }
    .btn-primary-custom{
      background:linear-gradient(135deg,var(--primary),#176ca7);
      color:#fff;
      box-shadow:0 14px 30px rgba(18,76,127,.23);
    }
    .btn-primary-custom:hover{color:#fff;transform:translateY(-2px);box-shadow:0 20px 42px rgba(18,76,127,.28)}
    .btn-ghost-custom{
      background:#fff;
      color:var(--primary);
      border:1px solid var(--border-strong);
      box-shadow:var(--shadow-sm);
    }
    .btn-ghost-custom:hover{background:var(--surface-2);color:var(--primary-700);transform:translateY(-2px)}
    .btn-dark-custom{
      background:var(--primary-900);
      color:#fff;
      box-shadow:0 16px 34px rgba(7,31,57,.22);
    }
    .btn-dark-custom:hover{color:#fff;background:#0b2c4d;transform:translateY(-2px)}
    .btn-custom:focus-visible,.card:focus-within,a:focus-visible,input:focus-visible,button:focus-visible{
      outline:3px solid rgba(47,183,211,.32);
      outline-offset:3px;
    }

    .hero{
      padding:66px 0 74px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.9),rgba(245,248,252,.84)),
        radial-gradient(circle at 85% 18%,rgba(47,183,211,.18),transparent 32%);
      overflow:hidden;
    }
    .hero-band{
      border:1px solid rgba(184,201,220,.82);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,#ffffff 0%,#f8fbff 58%,#ecf7fb 100%);
      box-shadow:var(--shadow-lg);
      overflow:hidden;
      position:relative;
    }
    .hero-band::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(18,76,127,.06) 1px, transparent 1px),
        linear-gradient(0deg,rgba(18,76,127,.05) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(90deg,rgba(0,0,0,.35),transparent 78%);
      pointer-events:none;
    }
    .hero-content{
      position:relative;
      padding:54px;
    }
    .preheat-badge{
      display:inline-flex;
      align-items:center;
      gap:9px;
      background:#fff7e7;
      color:#8a5a05;
      border:1px solid #f6deb0;
      padding:8px 13px;
      border-radius:999px;
      font-weight:900;
      font-size:14px;
      margin-bottom:18px;
    }
    .hero h1{
      font-size:clamp(34px,4.7vw,64px);
      line-height:1.08;
      letter-spacing:-.05em;
      font-weight:900;
      color:var(--primary-900);
      margin:0 0 20px;
      max-width:900px;
    }
    .hero-subtitle{
      font-size:18px;
      color:#43546a;
      max-width:850px;
      margin:0 0 26px;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}
    .hero-data{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:14px;
      max-width:780px;
    }
    .data-chip{
      background:rgba(255,255,255,.82);
      border:1px solid var(--border);
      border-radius:18px;
      padding:16px;
      box-shadow:var(--shadow-sm);
    }
    .data-chip strong{
      display:block;
      color:var(--primary-900);
      font-size:22px;
      line-height:1.1;
      margin-bottom:4px;
    }
    .data-chip span{font-size:13px;color:var(--muted);font-weight:700}
    .hero-progress-panel{
      position:relative;
      padding:36px 34px 34px;
      height:100%;
      background:rgba(7,31,57,.96);
      color:#eaf5ff;
      border-left:1px solid rgba(255,255,255,.1);
      display:flex;
      flex-direction:column;
      justify-content:center;
      gap:22px;
    }
    .progress-ring-wrap{
      display:flex;
      align-items:center;
      gap:22px;
    }
    .progress-ring{
      width:146px;
      height:146px;
      border-radius:50%;
      background:conic-gradient(var(--accent) 0 68%, rgba(255,255,255,.16) 68% 100%);
      display:grid;
      place-items:center;
      box-shadow:0 18px 46px rgba(0,0,0,.24);
      flex:0 0 auto;
    }
    .progress-ring::after{
      content:"68%";
      width:102px;
      height:102px;
      border-radius:50%;
      background:var(--primary-900);
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      font-size:28px;
      border:1px solid rgba(255,255,255,.12);
    }
    .progress-copy h2{
      font-size:24px;
      line-height:1.25;
      margin:0 0 8px;
      font-weight:900;
      color:#fff;
    }
    .progress-copy p{margin:0;color:#b9cce0;font-size:14px}
    .tier-preview{
      display:grid;
      gap:10px;
    }
    .tier-mini{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:13px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
    }
    .tier-mini.recommend{
      background:linear-gradient(135deg,rgba(47,183,211,.22),rgba(242,184,75,.16));
      border-color:rgba(47,183,211,.42);
    }
    .tier-mini b{font-size:15px;color:#fff}
    .tier-mini span{font-size:12px;color:#c8d8e7;text-align:right}
    .hero-notice{
      font-size:13px;
      color:#b7c9dc;
      border-top:1px dashed rgba(255,255,255,.18);
      padding-top:16px;
    }

    .stage-section{background:#fff}
    .stage-board{
      border-radius:var(--radius-xl);
      background:linear-gradient(135deg,#eff6ff,#ffffff);
      border:1px solid var(--border);
      box-shadow:var(--shadow-md);
      padding:26px;
      position:relative;
      overflow:hidden;
    }
    .stage-board::after{
      content:"";
      position:absolute;
      right:-120px;
      bottom:-150px;
      width:360px;
      height:360px;
      border-radius:50%;
      background:rgba(47,183,211,.12);
    }
    .browser-frame{
      position:relative;
      z-index:1;
      overflow:hidden;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 24px 55px rgba(16,56,92,.12);
    }
    .browser-top{
      height:52px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:0 18px;
      border-bottom:1px solid var(--border);
      background:#f8fbff;
    }
    .window-dots{display:flex;gap:8px}
    .window-dots i{width:11px;height:11px;border-radius:50%;display:block}
    .window-dots i:nth-child(1){background:#ff6961}
    .window-dots i:nth-child(2){background:#ffbd44}
    .window-dots i:nth-child(3){background:#40c463}
    .browser-label{
      font-size:13px;
      color:var(--muted);
      font-weight:800;
      border:1px solid var(--border);
      border-radius:999px;
      padding:5px 11px;
      background:#fff;
    }
    .dashboard{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:20px;
      padding:24px;
    }
    .dash-panel{
      border:1px solid var(--border);
      border-radius:20px;
      padding:20px;
      background:#fff;
      box-shadow:var(--shadow-sm);
    }
    .dash-panel.dark{
      background:linear-gradient(135deg,var(--primary-900),var(--primary-700));
      color:#fff;
      border:0;
    }
    .dash-title{font-weight:900;color:var(--primary-900);margin-bottom:14px}
    .dash-panel.dark .dash-title{color:#fff}
    .compat-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:13px 0;
      border-bottom:1px solid var(--border);
    }
    .compat-row:last-child{border-bottom:0}
    .compat-row span{color:var(--muted);font-weight:700}
    .compat-row b{color:var(--primary)}
    .meter{
      height:10px;
      border-radius:999px;
      background:#dfeaf5;
      overflow:hidden;
      margin:12px 0 18px;
    }
    .meter i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--success))}
    .stage-card-list{display:grid;gap:14px}
    .mini-check{
      display:flex;gap:12px;align-items:flex-start;
      padding:14px;
      border-radius:16px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
    }
    .check-icon{
      width:28px;height:28px;border-radius:10px;display:grid;place-items:center;
      background:rgba(47,183,211,.18);
      color:#8decff;
      flex:0 0 auto;
      font-weight:900;
    }
    .mini-check b{display:block;color:#fff;margin-bottom:2px}
    .mini-check small{color:#bdd1e5;display:block;line-height:1.5}
    .stage-side{
      display:grid;
      gap:16px;
      align-content:start;
    }
    .notice-card{
      border-radius:22px;
      border:1px solid var(--border);
      background:#fff;
      padding:22px;
      box-shadow:var(--shadow-sm);
      transition:transform .2s ease, box-shadow .2s ease;
    }
    .notice-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
    .notice-card h3{font-size:20px;font-weight:900;color:var(--primary-900);margin:0 0 8px}
    .notice-card p{margin:0;color:var(--muted);font-size:15px}

    .steps-section{background:linear-gradient(180deg,#fff,var(--bg))}
    .steps-wrap{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:34px;
      align-items:start;
    }
    .process-card{
      position:relative;
      padding:26px 26px 26px 82px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow-sm);
      margin-bottom:16px;
    }
    .process-card::before{
      content:attr(data-step);
      position:absolute;
      left:24px;
      top:26px;
      width:40px;height:40px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      color:#fff;
      font-weight:900;
    }
    .process-card h3{font-size:21px;margin:0 0 7px;font-weight:900;color:var(--primary-900)}
    .process-card p{margin:0;color:var(--muted)}
    .scenario-box{
      background:var(--primary-900);
      color:#dcecff;
      border-radius:var(--radius-xl);
      padding:32px;
      box-shadow:var(--shadow-lg);
      overflow:hidden;
      position:relative;
    }
    .scenario-box::after{
      content:"3GP";
      position:absolute;
      right:-10px;
      bottom:-42px;
      font-size:130px;
      line-height:1;
      color:rgba(255,255,255,.05);
      font-weight:900;
    }
    .scenario-box h3{font-size:26px;font-weight:900;color:#fff;margin-bottom:15px}
    .scenario-list{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:12px}
    .scenario-list li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:13px 14px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      border-radius:16px;
    }
    .scenario-list li::before{
      content:"✓";
      color:#8decff;
      font-weight:900;
      flex:0 0 auto;
    }

    .security-strip{
      background:#fff;
      padding:54px 0;
      border-top:1px solid var(--border);
      border-bottom:1px solid var(--border);
    }
    .security-grid{
      display:grid;
      grid-template-columns:1.2fr repeat(3,1fr);
      gap:16px;
    }
    .security-intro{
      padding:26px;
      border-radius:24px;
      background:linear-gradient(135deg,var(--primary),var(--primary-700));
      color:#fff;
      box-shadow:var(--shadow-md);
    }
    .security-intro h2{font-size:28px;font-weight:900;margin:0 0 10px}
    .security-intro p{margin:0;color:#d9eaff}
    .security-item{
      padding:24px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow-sm);
    }
    .security-item b{display:block;font-size:20px;color:var(--primary-900);margin-bottom:8px}
    .security-item span{color:var(--muted);font-size:15px}

    .compare-section{background:var(--bg)}
    .plan-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
      margin-top:34px;
    }
    .plan-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:26px;
      padding:28px;
      box-shadow:var(--shadow-sm);
      position:relative;
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .plan-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--border-strong)}
    .plan-card.recommended{
      border:2px solid var(--accent);
      box-shadow:0 24px 60px rgba(47,183,211,.18);
      transform:translateY(-8px);
    }
    .recommend-badge{
      position:absolute;
      top:18px;
      right:18px;
      background:#fff7e7;
      color:#8a5a05;
      border:1px solid #f4d794;
      border-radius:999px;
      padding:6px 10px;
      font-size:12px;
      font-weight:900;
    }
    .plan-name{font-size:24px;font-weight:900;color:var(--primary-900);margin-bottom:8px}
    .plan-price{font-size:34px;font-weight:900;color:var(--primary);margin-bottom:12px}
    .plan-price small{font-size:14px;color:var(--muted);font-weight:700}
    .plan-desc{color:var(--muted);min-height:52px}
    .feature-list{list-style:none;padding:0;margin:18px 0 24px;display:grid;gap:11px}
    .feature-list li{display:flex;gap:10px;color:#40536a;font-weight:700}
    .feature-list li::before{content:"●";color:var(--accent);font-size:12px;margin-top:4px}

    .ranking-section{background:#fff}
    .ranking-layout{
      display:grid;
      grid-template-columns:1fr 1.25fr;
      gap:30px;
      align-items:start;
    }
    .rank-table{
      background:#fff;
      border:1px solid var(--border);
      border-radius:26px;
      box-shadow:var(--shadow-md);
      overflow:hidden;
    }
    .rank-row{
      display:grid;
      grid-template-columns:58px 1fr 92px 86px;
      gap:14px;
      align-items:center;
      padding:18px 20px;
      border-bottom:1px solid var(--border);
    }
    .rank-row:last-child{border-bottom:0}
    .rank-no{
      width:36px;height:36px;border-radius:12px;
      display:grid;place-items:center;
      background:var(--surface-2);
      color:var(--primary);
      font-weight:900;
    }
    .rank-row:nth-child(1) .rank-no{background:#fff1d3;color:#9d6500}
    .rank-title b{display:block;color:var(--primary-900);font-weight:900}
    .rank-title span{display:block;color:var(--muted);font-size:13px;margin-top:2px}
    .rank-metric,.rank-trend{
      font-weight:900;
      color:var(--primary);
      text-align:right;
      font-size:14px;
    }
    .rank-trend.up{color:var(--success)}
    .rank-trend.hot{color:var(--danger)}
    .insight-card{
      padding:28px;
      border-radius:28px;
      background:linear-gradient(135deg,#edf8fb,#fff);
      border:1px solid var(--border);
      box-shadow:var(--shadow-sm);
    }
    .insight-card h3{font-size:26px;font-weight:900;color:var(--primary-900);margin-bottom:12px}
    .insight-card p{color:var(--muted);margin-bottom:18px}
    .insight-tags{display:flex;gap:10px;flex-wrap:wrap}
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:8px 11px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--border);
      color:var(--primary);
      font-weight:800;
      font-size:13px;
    }

    .reviews-section{background:linear-gradient(180deg,var(--bg),#fff)}
    .review-wall{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:18px;
      margin-top:34px;
    }
    .review-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:26px;
      padding:24px;
      box-shadow:var(--shadow-sm);
      transition:transform .2s ease, box-shadow .2s ease;
    }
    .review-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
    .review-card.large{grid-row:span 2;background:linear-gradient(135deg,#fff,#f3faff)}
    .review-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
    .avatar{
      width:46px;height:46px;border-radius:16px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      color:#fff;font-weight:900;
      flex:0 0 auto;
    }
    .review-user{display:flex;align-items:center;gap:12px}
    .review-user b{display:block;color:var(--primary-900)}
    .review-user span{display:block;color:var(--muted);font-size:13px}
    .stars{color:#f5ae2f;letter-spacing:1px}
    .review-card p{margin:0;color:#43546a}

    .news-section{background:#fff}
    .news-layout{
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:24px;
      margin-top:34px;
    }
    .news-list,.recommend-box{
      background:#fff;
      border:1px solid var(--border);
      border-radius:26px;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .news-item{
      display:grid;
      grid-template-columns:110px 1fr auto;
      gap:18px;
      align-items:center;
      padding:20px 22px;
      border-bottom:1px solid var(--border);
    }
    .news-item:last-child{border-bottom:0}
    .news-date{
      color:var(--primary);
      font-weight:900;
      background:var(--surface-2);
      border-radius:14px;
      padding:10px 12px;
      text-align:center;
      font-size:14px;
    }
    .news-title{font-weight:900;color:var(--primary-900);margin-bottom:4px}
    .news-title:hover{color:var(--primary)}
    .news-summary{color:var(--muted);font-size:14px;margin:0}
    .news-arrow{
      width:36px;height:36px;border-radius:50%;
      display:grid;place-items:center;
      color:var(--primary);
      background:#fff;
      border:1px solid var(--border);
    }
    .news-item:hover .news-arrow{background:var(--primary);color:#fff;transform:translateX(2px)}
    .recommend-box{padding:24px}
    .recommend-box h3{font-size:22px;color:var(--primary-900);font-weight:900;margin-bottom:14px}
    .recommend-link{
      display:flex;
      justify-content:space-between;
      gap:12px;
      padding:13px 0;
      border-bottom:1px dashed var(--border-strong);
      color:#40536a;
      font-weight:800;
    }
    .recommend-link:last-child{border-bottom:0}
    .recommend-link span{color:var(--muted);font-size:13px;white-space:nowrap}
    .recommend-link:hover{color:var(--primary);padding-left:4px}

    .faq-section{background:var(--bg)}
    .faq-wrap{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:34px;
      align-items:start;
    }
    .faq-note{
      position:sticky;
      top:132px;
      padding:30px;
      border-radius:28px;
      background:linear-gradient(135deg,var(--primary-900),#0e446f);
      color:#fff;
      box-shadow:var(--shadow-md);
    }
    .faq-note h2{font-size:30px;font-weight:900;margin:0 0 12px}
    .faq-note p{color:#d3e5f6;margin:0 0 18px}
    .accordion-item{
      border:1px solid var(--border)!important;
      border-radius:20px!important;
      overflow:hidden;
      margin-bottom:14px;
      box-shadow:var(--shadow-sm);
      background:#fff;
    }
    .accordion-button{
      padding:20px 22px;
      font-weight:900;
      color:var(--primary-900);
      background:#fff;
      box-shadow:none!important;
    }
    .accordion-button:not(.collapsed){
      color:var(--primary);
      background:#f4faff;
    }
    .accordion-button:focus{box-shadow:none;outline:3px solid rgba(47,183,211,.25);outline-offset:-3px}
    .accordion-body{color:#52657b;padding:0 22px 22px}

    .download-section{
      background:
        radial-gradient(circle at 14% 24%,rgba(47,183,211,.16),transparent 28%),
        linear-gradient(135deg,var(--primary-900),#0d4775 62%,#12618d);
      color:#fff;
      padding:88px 0;
    }
    .download-card{
      background:rgba(255,255,255,.09);
      border:1px solid rgba(255,255,255,.16);
      border-radius:var(--radius-xl);
      padding:38px;
      box-shadow:0 28px 70px rgba(0,0,0,.22);
      backdrop-filter:blur(14px);
    }
    .download-card h2{
      font-size:clamp(30px,3.8vw,48px);
      line-height:1.15;
      font-weight:900;
      margin-bottom:14px;
      letter-spacing:-.04em;
    }
    .download-card p{color:#d7e9f8;font-size:17px;margin-bottom:24px}
    .guide-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
      margin:26px 0;
    }
    .guide-item{
      padding:18px;
      border-radius:20px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.15);
    }
    .guide-item b{display:block;color:#fff;margin-bottom:6px}
    .guide-item span{display:block;color:#c5d9eb;font-size:14px}
    .subscribe-form{
      display:flex;
      gap:12px;
      background:#fff;
      border-radius:999px;
      padding:8px;
      max-width:630px;
      box-shadow:0 18px 40px rgba(0,0,0,.18);
    }
    .subscribe-form input{
      flex:1;
      min-width:0;
      border:0;
      outline:0;
      padding:0 16px;
      color:var(--text);
      background:transparent;
    }
    .form-tip{font-size:13px;color:#bdd1e5;margin-top:12px}

    .site-footer{
      background:#071f39;
      color:#c8d8e7;
      padding:56px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr .8fr;
      gap:34px;
      margin-bottom:36px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-size:20px;
      font-weight:900;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{width:40px;height:40px}
    .footer-title{font-size:16px;color:#fff;font-weight:900;margin-bottom:14px}
    .footer-links{list-style:none;padding:0;margin:0;display:grid;gap:10px}
    .footer-links a{color:#c8d8e7}
    .footer-links a:hover{color:#8decff;padding-left:3px}
    .footer-note{color:#a8bed5;margin:0;max-width:520px}
    .footer-bottom{
      border-top:1px solid rgba(255,255,255,.12);
      padding-top:22px;
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      font-size:13px;
      color:#94abc2;
    }

    .floating-cta{
      position:fixed;
      left:50%;
      bottom:18px;
      transform:translateX(-50%);
      z-index:1020;
      display:flex;
      align-items:center;
      gap:12px;
      background:rgba(255,255,255,.96);
      border:1px solid var(--border);
      border-radius:999px;
      padding:9px 10px 9px 18px;
      box-shadow:0 18px 50px rgba(16,56,92,.2);
      backdrop-filter:blur(14px);
    }
    .floating-cta span{font-weight:900;color:var(--primary-900);white-space:nowrap}
    .floating-cta small{color:var(--muted);font-weight:700}

    @media (max-width: 1024px){
      :root{--section:76px}
      .nav-search{display:none}
      .hero-content{padding:42px}
      .progress-ring-wrap{align-items:flex-start}
      .progress-ring{width:126px;height:126px}
      .progress-ring::after{width:88px;height:88px;font-size:24px}
      .dashboard,.steps-wrap,.ranking-layout,.news-layout,.faq-wrap{grid-template-columns:1fr}
      .security-grid{grid-template-columns:1fr 1fr}
      .plan-grid{grid-template-columns:1fr}
      .plan-card.recommended{transform:none}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 768px){
      .gov-topbar .container{justify-content:center;text-align:center}
      .topbar-right{display:none}
      .navbar-collapse{
        margin-top:12px;
        padding:14px;
        background:#fff;
        border:1px solid var(--border);
        border-radius:18px;
        box-shadow:var(--shadow-sm);
      }
      .nav-actions{margin:14px 0 0;align-items:stretch;flex-direction:column}
      .nav-search{display:flex;min-width:0;width:100%}
      .hero{padding:36px 0 52px}
      .hero-content{padding:30px 24px}
      .hero-progress-panel{border-left:0;padding:28px 24px}
      .hero-data{grid-template-columns:1fr}
      .progress-ring-wrap{flex-direction:column}
      .stage-board{padding:14px;border-radius:24px}
      .dashboard{padding:16px}
      .security-grid,.review-wall,.guide-grid{grid-template-columns:1fr}
      .rank-row{grid-template-columns:44px 1fr;gap:10px}
      .rank-metric,.rank-trend{text-align:left}
      .news-item{grid-template-columns:1fr;gap:10px}
      .news-date{width:max-content}
      .subscribe-form{border-radius:22px;flex-direction:column;padding:12px}
      .subscribe-form input{min-height:44px}
      .footer-grid{grid-template-columns:1fr}
      .floating-cta{display:none}
    }
    @media (max-width: 520px){
      :root{--section:64px}
      .container{padding-left:18px;padding-right:18px}
      .navbar-brand{font-size:16px;max-width:260px}
      .brand-mark{width:38px;height:38px;border-radius:12px}
      .hero h1{font-size:33px}
      .hero-subtitle{font-size:16px}
      .btn-custom{width:100%;padding:14px 18px}
      .hero-actions{gap:10px}
      .tier-mini{align-items:flex-start;flex-direction:column}
      .tier-mini span{text-align:left}
      .download-card,.scenario-box,.faq-note{padding:24px}
      .section-lead{font-size:16px}
      .rank-row{padding:16px}
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}