/* roulang page: index */
:root{
      --bg:#080b13;
      --bg-soft:#101625;
      --bg-card:#151c2d;
      --surface:#ffffff;
      --surface-soft:#f5f7fb;
      --text:#edf3ff;
      --text-dark:#152033;
      --muted:#98a7bd;
      --muted-dark:#647187;
      --primary:#7c3aed;
      --primary-2:#06b6d4;
      --primary-3:#ff4d7d;
      --warning:#ffd166;
      --success:#42d392;
      --danger:#ff6b6b;
      --border:rgba(255,255,255,.12);
      --border-dark:#dbe3ef;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow:0 22px 70px rgba(0,0,0,.35);
      --shadow-soft:0 18px 44px rgba(26,39,70,.12);
      --container:1180px;
      --header-h:76px;
      --transition:all .22s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 8% 8%, rgba(124,58,237,.28), transparent 30%),
        radial-gradient(circle at 82% 2%, rgba(6,182,212,.22), transparent 28%),
        linear-gradient(180deg,#080b13 0%,#0b1020 42%,#f5f7fb 42%,#f5f7fb 100%);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:var(--transition)}
    a:hover{color:inherit}
    img{max-width:100%;height:auto;display:block}
    button,input,select,textarea{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
      outline:3px solid rgba(6,182,212,.36);
      outline-offset:3px;
      border-radius:12px;
    }
    ::selection{background:rgba(124,58,237,.38);color:#fff}

    .container-xl{max-width:var(--container)}
    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      backdrop-filter:blur(18px);
      background:rgba(8,11,19,.76);
      border-bottom:1px solid rgba(255,255,255,.08);
      box-shadow:0 12px 40px rgba(0,0,0,.18);
    }
    .navbar{
      min-height:var(--header-h);
      padding:12px 0;
    }
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff!important;
      font-weight:900;
      letter-spacing:-.02em;
      white-space:normal;
      line-height:1.18;
    }
    .brand-mark{
      width:42px;height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 12px 28px rgba(124,58,237,.36);
      color:#fff;
      flex:0 0 auto;
    }
    .brand-text{font-size:18px}
    .navbar-toggler{
      border:1px solid rgba(255,255,255,.16);
      border-radius:14px;
      padding:10px 12px;
      color:#fff;
      box-shadow:none!important;
    }
    .navbar-toggler-icon{
      width:1.25em;height:1.25em;
      filter:invert(1) grayscale(1) brightness(2);
    }
    .nav-shell{
      gap:16px;
    }
    .navbar-nav .nav-link{
      color:rgba(237,243,255,.78);
      font-weight:700;
      padding:10px 14px!important;
      border-radius:999px;
    }
    .navbar-nav .nav-link:hover{
      color:#fff;
      background:rgba(255,255,255,.08);
    }
    .navbar-nav .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(124,58,237,.28),rgba(6,182,212,.18));
      border:1px solid rgba(255,255,255,.12);
    }
    .nav-search{
      position:relative;
      min-width:230px;
    }
    .nav-search i{
      position:absolute;
      left:14px;top:50%;
      transform:translateY(-50%);
      color:rgba(237,243,255,.55);
      font-size:14px;
    }
    .nav-search input{
      width:100%;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.07);
      color:#fff;
      border-radius:999px;
      padding:11px 14px 11px 38px;
      transition:var(--transition);
    }
    .nav-search input::placeholder{color:rgba(237,243,255,.48)}
    .nav-search input:focus{
      background:rgba(255,255,255,.11);
      border-color:rgba(6,182,212,.56);
    }

    .btn-brand,.btn-ghost,.btn-light-strong,.btn-darkline{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border-radius:999px;
      border:0;
      padding:13px 20px;
      font-weight:900;
      line-height:1;
      transition:var(--transition);
      cursor:pointer;
      white-space:nowrap;
    }
    .btn-brand{
      color:#fff!important;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 16px 34px rgba(6,182,212,.2),0 14px 30px rgba(124,58,237,.25);
    }
    .btn-brand:hover{
      transform:translateY(-2px);
      box-shadow:0 22px 48px rgba(6,182,212,.24),0 18px 38px rgba(124,58,237,.34);
    }
    .btn-brand:active{transform:translateY(0) scale(.98)}
    .btn-ghost{
      color:#fff!important;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
    }
    .btn-ghost:hover{
      background:rgba(255,255,255,.14);
      transform:translateY(-2px);
    }
    .btn-light-strong{
      color:#101827!important;
      background:#fff;
      box-shadow:0 16px 40px rgba(255,255,255,.16);
    }
    .btn-light-strong:hover{transform:translateY(-2px);background:#f4f8ff}
    .btn-darkline{
      color:#182236!important;
      background:#fff;
      border:1px solid var(--border-dark);
    }
    .btn-darkline:hover{
      border-color:rgba(124,58,237,.45);
      box-shadow:0 16px 36px rgba(33,42,70,.11);
      transform:translateY(-2px);
    }

    .section{
      padding:84px 0;
      color:var(--text-dark);
    }
    .section.dark{
      color:var(--text);
      background:linear-gradient(180deg,rgba(8,11,19,.86),rgba(13,19,34,.96));
    }
    .section.tight{padding:58px 0}
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-weight:900;
      color:#5b35d5;
      background:rgba(124,58,237,.09);
      border:1px solid rgba(124,58,237,.16);
      border-radius:999px;
      padding:8px 12px;
      margin-bottom:16px;
      font-size:14px;
    }
    .dark .section-kicker{
      color:#b9dfff;
      background:rgba(6,182,212,.12);
      border-color:rgba(6,182,212,.22);
    }
    .section-title{
      font-size:clamp(28px,4vw,44px);
      line-height:1.16;
      letter-spacing:-.04em;
      font-weight:950;
      margin:0 0 14px;
    }
    .section-desc{
      color:var(--muted-dark);
      max-width:760px;
      margin:0;
      font-size:17px;
    }
    .dark .section-desc{color:var(--muted)}
    .split-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:22px;
      margin-bottom:30px;
    }

    .hero{
      position:relative;
      padding:54px 0 92px;
      min-height:680px;
      display:flex;
      align-items:center;
      overflow:hidden;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:32px 3vw auto 3vw;
      height:360px;
      border-radius:48px;
      background:
        linear-gradient(110deg,rgba(124,58,237,.72),rgba(6,182,212,.48) 55%,rgba(255,77,125,.52)),
        radial-gradient(circle at 30% 20%, rgba(255,255,255,.22), transparent 24%);
      filter:blur(52px);
      opacity:.62;
      pointer-events:none;
    }
    .promo-stage{
      position:relative;
      border:1px solid rgba(255,255,255,.13);
      border-radius:38px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.12),rgba(255,255,255,.05)),
        radial-gradient(circle at 82% 20%,rgba(255,209,102,.18),transparent 26%),
        rgba(8,11,19,.64);
      box-shadow:var(--shadow);
      overflow:hidden;
      padding:34px;
    }
    .promo-stage:after{
      content:"";
      position:absolute;
      right:-70px;bottom:-90px;
      width:310px;height:310px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(6,182,212,.28),transparent 62%);
      pointer-events:none;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.12fr .88fr;
      gap:24px;
      align-items:stretch;
      position:relative;
      z-index:1;
    }
    .hero-main{
      min-height:500px;
      border-radius:30px;
      background:
        linear-gradient(145deg,rgba(10,15,30,.92),rgba(16,24,42,.72)),
        repeating-linear-gradient(90deg,rgba(255,255,255,.06) 0 1px,transparent 1px 90px);
      border:1px solid rgba(255,255,255,.12);
      padding:44px;
      position:relative;
      overflow:hidden;
    }
    .hero-main:before{
      content:"";
      position:absolute;
      inset:auto -12% -22% 28%;
      height:240px;
      background:linear-gradient(90deg,transparent,rgba(6,182,212,.2),rgba(124,58,237,.25),transparent);
      transform:rotate(-8deg);
    }
    .deal-badge{
      display:inline-flex;
      align-items:center;
      gap:9px;
      color:#15120a;
      background:linear-gradient(135deg,#ffe58a,#ff9f1c);
      border-radius:999px;
      padding:9px 14px;
      font-weight:950;
      box-shadow:0 12px 32px rgba(255,159,28,.24);
      margin-bottom:22px;
      position:relative;
      z-index:1;
    }
    .hero h1{
      font-size:clamp(36px,6vw,72px);
      line-height:1.02;
      letter-spacing:-.065em;
      font-weight:1000;
      margin:0 0 22px;
      max-width:860px;
      position:relative;
      z-index:1;
    }
    .hero-lead{
      max-width:760px;
      color:#c3cee0;
      font-size:18px;
      margin:0 0 28px;
      position:relative;
      z-index:1;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-bottom:30px;
      position:relative;
      z-index:1;
    }
    .data-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      position:relative;
      z-index:1;
    }
    .data-pill{
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.07);
      border-radius:18px;
      padding:16px;
    }
    .data-pill strong{
      display:block;
      font-size:22px;
      line-height:1;
      color:#fff;
      margin-bottom:7px;
    }
    .data-pill span{color:#9dafc8;font-size:13px}
    .hero-side{
      display:grid;
      grid-template-rows:1fr 1fr;
      gap:18px;
    }
    .burst{
      position:absolute;
      right:28px;
      top:26px;
      width:122px;height:122px;
      border-radius:34% 66% 45% 55% / 58% 40% 60% 42%;
      display:grid;
      place-items:center;
      text-align:center;
      transform:rotate(11deg);
      background:linear-gradient(135deg,var(--primary-3),#ffb703);
      color:#fff;
      font-weight:1000;
      line-height:1.12;
      box-shadow:0 18px 38px rgba(255,77,125,.32);
      z-index:2;
    }
    .side-card{
      border-radius:30px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.075);
      padding:24px;
      position:relative;
      overflow:hidden;
    }
    .side-card h2,.side-card h3{
      font-size:24px;
      line-height:1.18;
      font-weight:950;
      letter-spacing:-.03em;
      margin-bottom:14px;
    }
    .side-card p{color:#b9c6d8;margin:0}
    .radar{
      height:150px;
      margin-top:18px;
      border-radius:22px;
      background:
        linear-gradient(90deg,transparent 49%,rgba(6,182,212,.22) 50%,transparent 51%),
        linear-gradient(0deg,transparent 49%,rgba(6,182,212,.22) 50%,transparent 51%),
        radial-gradient(circle,rgba(6,182,212,.24) 0 2px,transparent 3px),
        radial-gradient(circle,transparent 0 35%,rgba(124,58,237,.17) 36% 37%,transparent 38% 100%);
      background-size:100% 100%,100% 100%,26px 26px,100% 100%;
      border:1px solid rgba(6,182,212,.18);
    }
    .mini-steps{
      list-style:none;
      padding:0;
      margin:18px 0 0;
      display:grid;
      gap:10px;
    }
    .mini-steps li{
      display:flex;
      align-items:center;
      gap:10px;
      color:#dce7f6;
      background:rgba(0,0,0,.15);
      border:1px solid rgba(255,255,255,.1);
      border-radius:16px;
      padding:11px 12px;
    }
    .mini-steps i{color:#7dd3fc}

    .metric-board{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:24px;
      align-items:stretch;
    }
    .board-card,.feature-card,.compare-card,.safe-card,.event-card,.testimonial-card,.news-panel,.faq-panel,.price-card{
      background:#fff;
      border:1px solid var(--border-dark);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
      transition:var(--transition);
      overflow:hidden;
    }
    .board-card:hover,.feature-card:hover,.safe-card:hover,.event-card:hover,.testimonial-card:hover,.price-card:hover{
      transform:translateY(-4px);
      box-shadow:0 24px 58px rgba(26,39,70,.16);
    }
    .board-card{padding:26px}
    .board-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      margin-bottom:20px;
    }
    .board-title{
      margin:0;
      font-size:23px;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .status-badge,.tag,.data-badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border-radius:999px;
      padding:7px 11px;
      font-size:13px;
      font-weight:900;
      white-space:nowrap;
    }
    .status-badge{
      background:rgba(66,211,146,.12);
      color:#087a4a;
      border:1px solid rgba(66,211,146,.24);
    }
    .chart-bars{
      display:grid;
      gap:13px;
    }
    .bar-line{
      display:grid;
      grid-template-columns:106px 1fr 44px;
      gap:12px;
      align-items:center;
      color:#516077;
      font-size:14px;
      font-weight:800;
    }
    .bar-track{
      height:12px;
      background:#e9eef7;
      border-radius:999px;
      overflow:hidden;
    }
    .bar-fill{
      display:block;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--primary-2));
      box-shadow:0 8px 22px rgba(6,182,212,.18);
    }
    .board-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .mini-stat{
      border-radius:22px;
      padding:22px;
      color:#fff;
      background:linear-gradient(135deg,#151c2d,#222b44);
      border:1px solid rgba(255,255,255,.08);
      min-height:150px;
      position:relative;
      overflow:hidden;
    }
    .mini-stat:after{
      content:"";
      position:absolute;
      right:-35px;bottom:-35px;
      width:110px;height:110px;border-radius:50%;
      background:rgba(6,182,212,.18);
    }
    .mini-stat strong{
      display:block;
      font-size:34px;
      line-height:1;
      margin-bottom:10px;
      letter-spacing:-.04em;
    }
    .mini-stat span{color:#b9c6d8;font-weight:750}

    .feature-layout{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:26px;
      align-items:start;
    }
    .feature-aside{
      position:sticky;
      top:100px;
      border-radius:var(--radius-lg);
      padding:28px;
      background:linear-gradient(145deg,#111827,#202946);
      color:#fff;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .feature-aside:after{
      content:"";
      position:absolute;
      right:-58px;top:30px;
      width:170px;height:170px;border-radius:50%;
      background:rgba(124,58,237,.3);
    }
    .feature-aside h2{
      font-size:32px;
      font-weight:950;
      letter-spacing:-.04em;
      margin-bottom:14px;
      position:relative;z-index:1;
    }
    .feature-aside p{color:#c4d0e3;margin-bottom:22px;position:relative;z-index:1}
    .topic-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      position:relative;z-index:1;
    }
    .tag{
      color:#26324a;
      background:#edf3ff;
      border:1px solid #dbe6f7;
    }
    .dark-tag{
      color:#d9f7ff;
      background:rgba(6,182,212,.12);
      border-color:rgba(6,182,212,.22);
    }
    .feature-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
    }
    .feature-card{
      padding:24px;
      min-height:210px;
    }
    .icon-box{
      width:48px;height:48px;
      border-radius:16px;
      display:grid;
      place-items:center;
      margin-bottom:18px;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 12px 26px rgba(124,58,237,.22);
    }
    .feature-card h3,.safe-card h3,.event-card h3,.testimonial-card h3,.price-card h3{
      font-size:20px;
      font-weight:950;
      letter-spacing:-.025em;
      margin:0 0 10px;
      color:#172033;
    }
    .feature-card p,.safe-card p,.event-card p,.testimonial-card p,.price-card p{
      color:var(--muted-dark);
      margin:0;
    }

    .compare-wrap{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:22px;
    }
    .compare-card{
      padding:28px;
    }
    .compare-card.strong{
      color:#fff;
      background:linear-gradient(145deg,#12192b,#242d4a);
      border-color:rgba(255,255,255,.12);
    }
    .compare-card h3{
      font-size:25px;
      font-weight:950;
      letter-spacing:-.035em;
      margin-bottom:18px;
    }
    .compare-card.strong h3{color:#fff}
    .check-list,.x-list{
      list-style:none;
      padding:0;margin:0;
      display:grid;
      gap:13px;
    }
    .check-list li,.x-list li{
      display:flex;
      gap:11px;
      align-items:flex-start;
      color:#556277;
      font-weight:760;
    }
    .compare-card.strong .check-list li{color:#d8e5f5}
    .check-list i{color:var(--success);margin-top:4px}
    .x-list i{color:#ff7a7a;margin-top:4px}

    .safe-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .safe-card{
      padding:22px;
      border-radius:24px;
    }
    .safe-card .icon-box{
      width:44px;height:44px;border-radius:15px;
      background:linear-gradient(135deg,#0ea5e9,#22c55e);
    }

    .event-strip{
      display:grid;
      grid-template-columns:1fr .9fr 1.1fr;
      gap:18px;
    }
    .event-card{
      padding:24px;
      min-height:220px;
    }
    .map-card{
      background:
        linear-gradient(135deg,rgba(124,58,237,.14),rgba(6,182,212,.12)),
        repeating-linear-gradient(45deg,transparent 0 20px,rgba(21,32,51,.05) 20px 21px);
      position:relative;
    }
    .map-pin{
      width:52px;height:52px;
      border-radius:18px 18px 18px 4px;
      transform:rotate(-45deg);
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,var(--primary-3),var(--primary));
      color:#fff;
      box-shadow:0 18px 34px rgba(124,58,237,.28);
      margin:16px auto;
    }
    .map-pin i{transform:rotate(45deg)}
    .process-list{
      list-style:none;
      margin:16px 0 0;
      padding:0;
      display:grid;
      gap:11px;
    }
    .process-list li{
      display:grid;
      grid-template-columns:32px 1fr;
      gap:10px;
      align-items:start;
      color:#56637a;
      font-weight:760;
    }
    .process-list b{
      display:grid;
      place-items:center;
      width:32px;height:32px;
      border-radius:12px;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      line-height:1;
    }

    .testimonial-band{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:22px;
      align-items:stretch;
    }
    .social-proof{
      border-radius:var(--radius-lg);
      padding:30px;
      background:linear-gradient(135deg,#101827,#202a46);
      color:#fff;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      position:relative;
    }
    .social-proof:after{
      content:"";
      position:absolute;
      inset:auto -60px -80px auto;
      width:220px;height:220px;border-radius:50%;
      background:rgba(255,77,125,.22);
    }
    .rating{
      display:flex;
      align-items:center;
      gap:8px;
      color:#ffd166;
      margin:16px 0;
      font-size:18px;
    }
    .proof-numbers{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:24px;
      position:relative;z-index:1;
    }
    .proof-numbers div{
      border-radius:18px;
      padding:14px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.1);
    }
    .proof-numbers strong{
      display:block;
      font-size:24px;
      line-height:1;
    }
    .proof-numbers span{font-size:12px;color:#bdc9da}
    .testimonial-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .testimonial-card{
      padding:22px;
      border-radius:24px;
    }
    .quote-mark{
      color:#7c3aed;
      font-size:24px;
      margin-bottom:8px;
    }
    .avatar-line{
      display:flex;
      align-items:center;
      gap:10px;
      margin-top:18px;
      color:#1c2740;
      font-weight:900;
    }
    .avatar{
      width:38px;height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-3));
    }

    .news-layout{
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:22px;
      align-items:start;
    }
    .news-panel{
      padding:26px;
    }
    .news-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:0;
    }
    .news-list li+li{border-top:1px solid #e8eef7}
    .news-list a{
      display:grid;
      grid-template-columns:96px 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px 0;
      color:#182236;
    }
    .news-list a:hover{
      color:#5f35d7;
      transform:translateX(3px);
    }
    .news-date{
      color:#73829a;
      font-weight:900;
      font-size:14px;
    }
    .news-title{
      font-weight:950;
      letter-spacing:-.015em;
    }
    .news-meta{
      color:#8a97aa;
      font-size:13px;
      font-weight:800;
    }
    .calendar-list{
      display:grid;
      gap:12px;
    }
    .calendar-item{
      display:grid;
      grid-template-columns:54px 1fr;
      gap:12px;
      padding:14px;
      border-radius:18px;
      background:#f3f6fb;
      border:1px solid #e3eaf5;
    }
    .calendar-day{
      display:grid;
      place-items:center;
      height:54px;
      border-radius:16px;
      background:#fff;
      color:#6236d5;
      font-weight:1000;
      box-shadow:0 8px 20px rgba(26,39,70,.06);
    }
    .calendar-item strong{
      display:block;
      color:#172033;
      line-height:1.3;
      margin-bottom:4px;
    }
    .calendar-item span{color:#6d7b90;font-size:13px}

    .faq-wrap{
      display:grid;
      grid-template-columns:.75fr 1.25fr;
      gap:24px;
      align-items:start;
    }
    .faq-panel{
      padding:14px;
    }
    .accordion-item{
      border:0;
      border-bottom:1px solid #e7edf6;
      background:transparent;
    }
    .accordion-item:last-child{border-bottom:0}
    .accordion-button{
      padding:20px 18px;
      font-weight:950;
      color:#172033;
      background:#fff;
      border-radius:18px!important;
      box-shadow:none!important;
    }
    .accordion-button:not(.collapsed){
      color:#5d35d6;
      background:#f6f2ff;
    }
    .accordion-body{
      color:#627087;
      padding:0 18px 20px;
    }
    .faq-note{
      border-radius:var(--radius-lg);
      padding:28px;
      background:linear-gradient(135deg,#101827,#26314f);
      color:#fff;
      position:sticky;
      top:100px;
      overflow:hidden;
    }
    .faq-note p{color:#c2cedf;margin:0 0 20px}

    .cta-section{
      padding:90px 0 100px;
      color:#fff;
      background:
        radial-gradient(circle at 20% 20%,rgba(124,58,237,.35),transparent 28%),
        radial-gradient(circle at 80% 10%,rgba(6,182,212,.28),transparent 28%),
        linear-gradient(145deg,#090d18,#151d31);
    }
    .cta-box{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:28px;
      align-items:stretch;
      border:1px solid rgba(255,255,255,.12);
      border-radius:38px;
      padding:32px;
      background:rgba(255,255,255,.07);
      box-shadow:var(--shadow);
      backdrop-filter:blur(16px);
    }
    .price-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
      margin-top:24px;
    }
    .price-card{
      padding:20px;
      border-radius:24px;
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.12);
      color:#fff;
      box-shadow:none;
    }
    .price-card.recommend{
      background:linear-gradient(145deg,rgba(124,58,237,.38),rgba(6,182,212,.22));
      border-color:rgba(6,182,212,.36);
    }
    .price-card h3{color:#fff}
    .price-card p{color:#c5d1e4}
    .price-card strong{
      display:block;
      font-size:28px;
      line-height:1;
      margin-bottom:10px;
    }
    .lead-form{
      background:#fff;
      color:#172033;
      border-radius:30px;
      padding:28px;
      box-shadow:0 24px 55px rgba(0,0,0,.18);
    }
    .lead-form h2{
      font-size:28px;
      font-weight:950;
      letter-spacing:-.04em;
      margin-bottom:8px;
    }
    .form-textline{color:#647187;margin-bottom:20px}
    .form-label{
      font-weight:900;
      color:#26324a;
      margin-bottom:8px;
    }
    .form-control,.form-select{
      border:1px solid #dbe3ef;
      border-radius:16px;
      padding:13px 14px;
      color:#172033;
      box-shadow:none!important;
      transition:var(--transition);
    }
    .form-control:focus,.form-select:focus{
      border-color:rgba(124,58,237,.62);
      box-shadow:0 0 0 4px rgba(124,58,237,.11)!important;
    }
    .form-hint{
      color:#728097;
      font-size:13px;
      margin-top:12px;
    }
    .form-alert{
      display:none;
      margin-top:14px;
      padding:12px 14px;
      border-radius:16px;
      color:#087a4a;
      background:rgba(66,211,146,.12);
      border:1px solid rgba(66,211,146,.24);
      font-weight:800;
    }

    .site-footer{
      color:#c1cada;
      background:#070a12;
      border-top:1px solid rgba(255,255,255,.08);
      padding:46px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:28px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-size:19px;
      font-weight:950;
      margin-bottom:14px;
    }
    .footer-desc{max-width:680px;color:#8f9db3;margin:0}
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:12px;
    }
    .footer-links a{
      color:#c1cada;
      padding:8px 10px;
      border-radius:12px;
    }
    .footer-links a:hover{
      color:#fff;
      background:rgba(255,255,255,.08);
    }
    .copyright{
      border-top:1px solid rgba(255,255,255,.08);
      margin-top:28px;
      padding-top:20px;
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:#77849a;
      font-size:14px;
    }

    .float-cta{
      position:fixed;
      right:22px;
      bottom:22px;
      z-index:999;
      display:flex;
      align-items:center;
      gap:10px;
      color:#fff!important;
      background:linear-gradient(135deg,var(--primary-3),var(--primary));
      box-shadow:0 18px 44px rgba(124,58,237,.35);
      border-radius:999px;
      padding:12px 16px;
      font-weight:950;
      border:1px solid rgba(255,255,255,.18);
    }
    .float-cta:hover{transform:translateY(-3px)}

    @media (max-width: 1024px){
      .hero-grid,.metric-board,.feature-layout,.testimonial-band,.news-layout,.faq-wrap,.cta-box{
        grid-template-columns:1fr;
      }
      .feature-aside,.faq-note{position:relative;top:auto}
      .event-strip{grid-template-columns:1fr 1fr}
      .safe-grid{grid-template-columns:repeat(2,1fr)}
      .nav-search{min-width:190px}
    }
    @media (max-width: 768px){
      body{
        background:
          radial-gradient(circle at 8% 2%, rgba(124,58,237,.26), transparent 28%),
          linear-gradient(180deg,#080b13 0%,#0b1020 48%,#f5f7fb 48%,#f5f7fb 100%);
      }
      .navbar-collapse{
        padding:14px 0 10px;
      }
      .nav-shell{
        align-items:stretch!important;
        gap:12px;
      }
      .nav-search{width:100%;min-width:0}
      .hero{padding:34px 0 70px;min-height:auto}
      .promo-stage{padding:18px;border-radius:28px}
      .hero-main{padding:28px;border-radius:24px;min-height:auto}
      .hero-side{grid-template-rows:auto}
      .burst{
        position:relative;
        right:auto;top:auto;
        width:auto;height:auto;
        transform:none;
        border-radius:999px;
        display:inline-flex;
        padding:10px 14px;
        margin-bottom:16px;
      }
      .data-row,.proof-numbers,.price-row,.feature-grid,.compare-wrap,.board-grid{
        grid-template-columns:1fr;
      }
      .section{padding:64px 0}
      .split-head{
        align-items:flex-start;
        flex-direction:column;
      }
      .event-strip{grid-template-columns:1fr}
      .news-list a{
        grid-template-columns:1fr auto;
        gap:8px;
      }
      .news-date{grid-column:1 / -1}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
      .float-cta{right:14px;bottom:14px}
    }
    @media (max-width: 520px){
      .brand-text{font-size:16px}
      .hero h1{font-size:34px}
      .hero-lead{font-size:16px}
      .hero-actions .btn-brand,.hero-actions .btn-ghost,.hero-actions .btn-light-strong{
        width:100%;
      }
      .bar-line{
        grid-template-columns:1fr;
        gap:6px;
      }
      .safe-grid,.testimonial-grid{grid-template-columns:1fr}
      .cta-box{padding:18px;border-radius:26px}
      .lead-form{padding:22px;border-radius:24px}
      .footer-links a{padding-left:0}
    }

/* 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}