/* roulang page: index */
:root{
      --bg:#0d1020;
      --bg-soft:#13182b;
      --bg-card:#ffffff;
      --surface:#f6f7fb;
      --surface-2:#eef1f8;
      --text:#182033;
      --muted:#667085;
      --light:#f9fbff;
      --white:#ffffff;
      --primary:#7c3aed;
      --primary-dark:#5b21b6;
      --primary-soft:#ede9fe;
      --accent:#00d4a6;
      --accent-soft:#d8fff5;
      --warning:#ffb020;
      --danger:#ff5a7a;
      --border:#e4e7ef;
      --border-dark:rgba(255,255,255,.14);
      --shadow-sm:0 10px 28px rgba(16,24,40,.08);
      --shadow:0 22px 55px rgba(16,24,40,.14);
      --shadow-dark:0 30px 80px rgba(0,0,0,.32);
      --radius-sm:12px;
      --radius:22px;
      --radius-lg:34px;
      --container:1180px;
      --ease:all .25s 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 12% 4%, rgba(124,58,237,.14), transparent 34%),
        radial-gradient(circle at 85% 10%, rgba(0,212,166,.12), transparent 32%),
        var(--surface);
      line-height:1.72;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover{color:var(--primary)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0}
    ::selection{background:var(--primary);color:#fff}
    :focus-visible{outline:3px solid rgba(0,212,166,.45);outline-offset:3px;border-radius:10px}

    .container-xl{max-width:var(--container)}
    .section{padding:86px 0;position:relative}
    .section-tight{padding:64px 0}
    .section-title{
      font-size:clamp(28px,3vw,44px);
      line-height:1.18;
      letter-spacing:-.03em;
      font-weight:900;
      margin:0 0 16px;
      color:#111827;
    }
    .section-desc{
      margin:0;
      color:var(--muted);
      font-size:17px;
      max-width:760px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(124,58,237,.1);
      color:var(--primary-dark);
      font-weight:800;
      font-size:13px;
      letter-spacing:.02em;
      margin-bottom:18px;
    }
    .eyebrow::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 6px rgba(0,212,166,.14);
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(255,255,255,.88);
      backdrop-filter:saturate(160%) blur(18px);
      border-bottom:1px solid rgba(228,231,239,.82);
      box-shadow:0 8px 30px rgba(16,24,40,.05);
    }
    .brand-row{
      padding:14px 0;
      border-bottom:1px solid rgba(228,231,239,.72);
    }
    .brand-logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:950;
      color:#111827;
      letter-spacing:-.03em;
      font-size:21px;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      background:linear-gradient(135deg,var(--primary),#3b82f6 52%,var(--accent));
      display:grid;place-items:center;
      color:#fff;
      box-shadow:0 12px 30px rgba(124,58,237,.28);
      position:relative;
      overflow:hidden;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      width:26px;height:26px;
      background:rgba(255,255,255,.18);
      border-radius:50%;
      right:-8px;top:-6px;
    }
    .brand-mark span{
      width:0;height:0;
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      border-left:13px solid #fff;
      margin-left:3px;
      z-index:1;
    }
    .header-search{
      max-width:420px;
      flex:1;
      position:relative;
    }
    .header-search input{
      width:100%;
      border:1px solid var(--border);
      background:#f8f9fd;
      border-radius:999px;
      padding:11px 44px 11px 18px;
      color:var(--text);
      transition:var(--ease);
    }
    .header-search input:focus{
      border-color:rgba(124,58,237,.55);
      background:#fff;
      box-shadow:0 0 0 4px rgba(124,58,237,.1);
      outline:none;
    }
    .search-dot{
      position:absolute;right:16px;top:50%;
      transform:translateY(-50%);
      width:18px;height:18px;border-radius:50%;
      border:2px solid var(--primary);
    }
    .search-dot::after{
      content:"";
      width:7px;height:2px;background:var(--primary);
      position:absolute;right:-5px;bottom:-2px;
      transform:rotate(45deg);border-radius:999px;
    }
    .channel-row{padding:9px 0}
    .navbar{padding:0}
    .navbar-toggler{
      border:1px solid var(--border);
      border-radius:14px;
      padding:9px 11px;
      box-shadow:none!important;
    }
    .channel-nav{
      display:flex;
      align-items:center;
      gap:8px;
      overflow-x:auto;
      scrollbar-width:none;
      padding:2px 0;
    }
    .channel-nav::-webkit-scrollbar{display:none}
    .channel-link{
      display:inline-flex;
      align-items:center;
      white-space:nowrap;
      padding:10px 16px;
      border-radius:999px;
      color:#344054;
      font-weight:800;
      font-size:15px;
      border:1px solid transparent;
    }
    .channel-link:hover{
      background:var(--primary-soft);
      color:var(--primary-dark);
      border-color:rgba(124,58,237,.14);
    }
    .channel-link.active{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#4f46e5);
      box-shadow:0 12px 24px rgba(124,58,237,.24);
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:10px 18px;
      border-radius:999px;
      background:#111827;
      color:#fff;
      font-weight:850;
      box-shadow:0 10px 24px rgba(17,24,39,.18);
    }
    .nav-cta:hover{color:#fff;background:var(--primary);transform:translateY(-1px)}

    .btn-main,.btn-ghost,.btn-lightline{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:13px 20px;
      border-radius:999px;
      font-weight:900;
      transition:var(--ease);
      cursor:pointer;
    }
    .btn-main{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#4f46e5);
      box-shadow:0 16px 30px rgba(124,58,237,.28);
    }
    .btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 22px 42px rgba(124,58,237,.34)}
    .btn-main:active{transform:translateY(0);box-shadow:0 10px 20px rgba(124,58,237,.22)}
    .btn-ghost{
      color:#111827;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow-sm);
    }
    .btn-ghost:hover{color:var(--primary-dark);border-color:rgba(124,58,237,.28);transform:translateY(-2px)}
    .btn-lightline{
      color:#fff;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.22);
    }
    .btn-lightline:hover{color:#fff;background:rgba(255,255,255,.18);transform:translateY(-2px)}
    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 10px;
      border-radius:999px;
      background:var(--accent-soft);
      color:#047857;
      font-weight:850;
      font-size:12px;
    }

    .hero{
      padding:78px 0 92px;
      color:#fff;
      background:
        linear-gradient(125deg,rgba(13,16,32,.98) 0%,rgba(19,24,43,.96) 46%,rgba(50,31,98,.94) 100%);
      overflow:hidden;
      position:relative;
    }
    .hero::before{
      content:"";
      position:absolute;inset:-20% -10% auto auto;
      width:650px;height:650px;
      background:radial-gradient(circle,rgba(0,212,166,.2),transparent 64%);
      pointer-events:none;
    }
    .hero::after{
      content:"";
      position:absolute;left:-160px;bottom:-260px;
      width:520px;height:520px;border-radius:50%;
      background:radial-gradient(circle,rgba(124,58,237,.36),transparent 66%);
      pointer-events:none;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:5fr 7fr;
      gap:44px;
      align-items:center;
      position:relative;
      z-index:1;
    }
    .hero h1{
      font-size:clamp(40px,5vw,68px);
      line-height:1.04;
      letter-spacing:-.055em;
      font-weight:950;
      margin:0 0 22px;
    }
    .hero p{
      color:rgba(255,255,255,.75);
      font-size:18px;
      margin:0 0 28px;
      max-width:560px;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
    .hero-kpis{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      max-width:560px;
    }
    .kpi-pill{
      padding:15px 14px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.08);
      border-radius:18px;
      backdrop-filter:blur(12px);
    }
    .kpi-pill strong{
      display:block;
      font-size:23px;
      line-height:1;
      color:#fff;
      margin-bottom:7px;
      letter-spacing:-.03em;
    }
    .kpi-pill span{font-size:13px;color:rgba(255,255,255,.68)}

    .hero-visual-wrap{
      min-height:500px;
      position:relative;
      transform:skewY(-3deg) rotate(-1deg);
    }
    .hero-visual{
      position:absolute;
      inset:20px 0 0 18px;
      border-radius:var(--radius-lg);
      overflow:hidden;
      background:
        linear-gradient(135deg,rgba(255,255,255,.18),rgba(255,255,255,.04)),
        radial-gradient(circle at 22% 18%,rgba(0,212,166,.45),transparent 26%),
        radial-gradient(circle at 78% 20%,rgba(124,58,237,.5),transparent 30%),
        linear-gradient(145deg,#171b33,#0d1020 56%,#25134d);
      box-shadow:var(--shadow-dark);
      border:1px solid rgba(255,255,255,.16);
    }
    .hero-visual::before{
      content:"";
      position:absolute;inset:0;
      background:
        linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px),
        linear-gradient(180deg,rgba(255,255,255,.06) 1px,transparent 1px);
      background-size:52px 52px;
      mask-image:linear-gradient(135deg,rgba(0,0,0,.88),transparent 76%);
    }
    .visual-inner{
      transform:skewY(3deg) rotate(1deg);
      position:absolute;
      inset:32px;
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:20px;
      align-items:stretch;
    }
    .big-panel{
      border-radius:30px;
      padding:26px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.16);
      backdrop-filter:blur(18px);
      position:relative;
      overflow:hidden;
    }
    .big-panel .play-orb{
      width:96px;height:96px;border-radius:50%;
      background:linear-gradient(135deg,#fff,var(--accent-soft));
      display:grid;place-items:center;
      box-shadow:0 22px 58px rgba(0,212,166,.28);
      margin:76px auto 30px;
    }
    .big-panel .play-orb span{
      width:0;height:0;border-top:16px solid transparent;border-bottom:16px solid transparent;border-left:24px solid var(--primary);margin-left:6px;
    }
    .progress-line{
      height:9px;border-radius:999px;background:rgba(255,255,255,.16);
      overflow:hidden;margin:16px 0 10px;
    }
    .progress-line i{display:block;height:100%;width:72%;background:linear-gradient(90deg,var(--accent),#8b5cf6);border-radius:inherit}
    .panel-title{font-weight:950;font-size:24px;letter-spacing:-.03em}
    .panel-sub{color:rgba(255,255,255,.68);font-size:14px;margin-top:8px}
    .side-stack{display:grid;gap:16px}
    .mini-card{
      border-radius:24px;
      padding:20px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.14);
      backdrop-filter:blur(14px);
    }
    .mini-card strong{display:block;font-size:28px;letter-spacing:-.04em}
    .mini-card span{font-size:13px;color:rgba(255,255,255,.7)}
    .floating-tag{
      position:absolute;
      right:24px;
      top:26px;
      transform:skewY(3deg) rotate(1deg);
      padding:11px 14px;
      border-radius:999px;
      color:#052e24;
      background:linear-gradient(135deg,#fff,var(--accent-soft));
      font-weight:950;
      box-shadow:0 16px 38px rgba(0,0,0,.22);
      z-index:3;
    }

    .feature-ribbon{
      margin-top:-34px;
      position:relative;
      z-index:3;
    }
    .ribbon-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:28px;
      box-shadow:var(--shadow);
      padding:18px;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:12px;
    }
    .ribbon-item{
      padding:18px;
      border-radius:20px;
      background:linear-gradient(180deg,#fff,#f8f9fd);
      border:1px solid #eef1f7;
      transition:var(--ease);
    }
    .ribbon-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
    .ribbon-icon{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      background:var(--primary-soft);
      color:var(--primary-dark);
      font-weight:950;
      margin-bottom:12px;
    }
    .ribbon-item h3{font-size:17px;font-weight:950;margin:0 0 6px}
    .ribbon-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.55}

    .spec-section{background:#fff}
    .spec-layout{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:28px;
      align-items:start;
    }
    .spec-intro{
      position:sticky;
      top:142px;
      padding:34px;
      border-radius:30px;
      color:#fff;
      background:linear-gradient(145deg,#151936,#2b185c);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .spec-intro::after{
      content:"";
      position:absolute;right:-80px;bottom:-90px;width:220px;height:220px;border-radius:50%;
      background:rgba(0,212,166,.2);
    }
    .spec-intro h2{font-size:34px;line-height:1.16;font-weight:950;margin:0 0 14px}
    .spec-intro p{color:rgba(255,255,255,.72);margin:0 0 22px}
    .spec-list{display:grid;gap:14px}
    .spec-row{
      display:grid;
      grid-template-columns:170px 1fr auto;
      gap:18px;
      align-items:center;
      padding:20px 22px;
      border:1px solid var(--border);
      border-radius:22px;
      background:#fff;
      box-shadow:0 10px 26px rgba(16,24,40,.04);
      transition:var(--ease);
    }
    .spec-row:hover{transform:translateX(4px);border-color:rgba(124,58,237,.28);box-shadow:var(--shadow-sm)}
    .spec-name{font-weight:950;color:#111827}
    .spec-value{color:var(--muted)}
    .spec-state{
      padding:7px 10px;
      border-radius:999px;
      background:var(--accent-soft);
      color:#047857;
      font-weight:900;
      font-size:12px;
    }

    .scenario-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:24px;
      margin-top:34px;
    }
    .scenario-large,.scenario-small{
      border-radius:30px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .scenario-large{padding:32px}
    .scenario-large h3,.scenario-small h3{font-size:24px;font-weight:950;margin:0 0 10px}
    .scenario-large p,.scenario-small p{color:var(--muted);margin:0}
    .scenario-meter{
      margin-top:28px;
      display:grid;
      gap:14px;
    }
    .meter-item{
      display:grid;
      grid-template-columns:92px 1fr 54px;
      gap:12px;
      align-items:center;
      color:#475467;
      font-weight:800;
    }
    .meter-track{height:10px;border-radius:999px;background:#eef1f8;overflow:hidden}
    .meter-track i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),var(--accent))}
    .scenario-small{padding:26px;display:grid;gap:18px}
    .check-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
    .check-list li{
      display:flex;gap:10px;align-items:flex-start;
      color:#475467;
    }
    .check-list li::before{
      content:"✓";
      flex:0 0 24px;width:24px;height:24px;
      border-radius:50%;
      display:grid;place-items:center;
      background:var(--accent-soft);
      color:#047857;
      font-weight:950;
      font-size:13px;
      margin-top:1px;
    }

    .analysis-section{
      background:
        linear-gradient(180deg,#f6f7fb 0%,#fff 100%);
    }
    .analytics-board{
      margin-top:34px;
      display:grid;
      grid-template-columns:repeat(12,1fr);
      gap:18px;
    }
    .analytics-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:26px;
      padding:24px;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .analytics-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .analytics-card.wide{grid-column:span 7}
    .analytics-card.side{grid-column:span 5}
    .analytics-card.small{grid-column:span 4}
    .analytics-card h3{font-size:20px;font-weight:950;margin:0 0 8px}
    .analytics-card p{color:var(--muted);margin:0 0 18px}
    .chart-bars{display:flex;align-items:end;gap:12px;height:170px;padding-top:16px}
    .bar{
      flex:1;border-radius:14px 14px 6px 6px;
      background:linear-gradient(180deg,var(--primary),rgba(124,58,237,.18));
      min-height:42px;
      position:relative;
    }
    .bar:nth-child(2n){background:linear-gradient(180deg,var(--accent),rgba(0,212,166,.18))}
    .bar span{
      position:absolute;bottom:-30px;left:50%;transform:translateX(-50%);
      font-size:12px;color:#667085;font-weight:800;
    }
    .path-list{display:grid;gap:12px}
    .path-item{
      display:flex;justify-content:space-between;gap:14px;
      padding:13px 14px;border-radius:16px;background:#f8f9fd;
      color:#475467;font-weight:800;
    }
    .path-item strong{color:#111827}
    .metric-number{
      font-size:42px;
      line-height:1;
      font-weight:950;
      letter-spacing:-.05em;
      color:var(--primary-dark);
      margin-bottom:10px;
    }

    .updates-section{background:#111827;color:#fff;overflow:hidden}
    .updates-section .section-title{color:#fff}
    .updates-section .section-desc{color:rgba(255,255,255,.68)}
    .changelog{
      margin-top:34px;
      display:grid;
      gap:16px;
      position:relative;
    }
    .change-item{
      display:grid;
      grid-template-columns:150px 1fr auto;
      gap:20px;
      align-items:center;
      padding:20px;
      border-radius:24px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
      transition:var(--ease);
    }
    .change-item:hover{background:rgba(255,255,255,.1);transform:translateX(4px)}
    .change-date{font-weight:950;color:var(--accent)}
    .change-content h3{margin:0 0 5px;font-size:18px;font-weight:950}
    .change-content p{margin:0;color:rgba(255,255,255,.66);font-size:14px}
    .change-tag{
      padding:7px 11px;border-radius:999px;
      background:rgba(0,212,166,.14);
      color:#8fffe5;
      font-weight:900;font-size:12px;
      white-space:nowrap;
    }

    .news-section{background:#fff}
    .news-layout{
      margin-top:34px;
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:26px;
      align-items:start;
    }
    .news-list{
      background:#fff;
      border:1px solid var(--border);
      border-radius:30px;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .news-row{
      display:grid;
      grid-template-columns:110px 1fr 100px;
      gap:18px;
      align-items:center;
      padding:20px 24px;
      border-bottom:1px solid var(--border);
      transition:var(--ease);
    }
    .news-row:last-child{border-bottom:0}
    .news-row:hover{background:#f8f9fd}
    .news-date{
      color:var(--primary-dark);
      font-weight:950;
      font-size:14px;
    }
    .news-row h3{font-size:18px;font-weight:950;margin:0 0 5px}
    .news-row p{margin:0;color:var(--muted);font-size:14px}
    .news-link{
      justify-self:end;
      color:#111827;
      font-weight:950;
      padding:8px 12px;
      border-radius:999px;
      background:#f1f3f9;
    }
    .news-link:hover{background:var(--primary);color:#fff}
    .recommend-card{
      padding:26px;
      border-radius:30px;
      background:linear-gradient(145deg,var(--primary-soft),#fff);
      border:1px solid rgba(124,58,237,.16);
      box-shadow:var(--shadow-sm);
    }
    .recommend-card h3{font-weight:950;font-size:24px;margin:0 0 10px}
    .recommend-card p{color:#5b6475;margin:0 0 18px}
    .recommend-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
    .recommend-list li{
      padding:14px 15px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(255,255,255,.86);
      border-radius:18px;
      color:#475467;
      font-weight:750;
    }

    .calendar-section{background:#f7f8fc}
    .calendar-wrap{
      margin-top:34px;
      display:grid;
      grid-template-columns:repeat(5,1fr);
      gap:14px;
    }
    .day-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:24px;
      padding:20px;
      box-shadow:0 10px 24px rgba(16,24,40,.05);
      transition:var(--ease);
    }
    .day-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
    .day-card.active{
      background:linear-gradient(145deg,#181d36,#31195f);
      color:#fff;
      border-color:rgba(255,255,255,.12);
    }
    .day-card .day{font-size:13px;font-weight:950;color:var(--primary-dark)}
    .day-card.active .day{color:var(--accent)}
    .day-card h3{font-size:18px;font-weight:950;margin:8px 0}
    .day-card p{margin:0;color:var(--muted);font-size:14px}
    .day-card.active p{color:rgba(255,255,255,.68)}

    .proof-section{background:#fff}
    .proof-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      margin-top:34px;
    }
    .proof-card{
      border:1px solid var(--border);
      border-radius:28px;
      padding:26px;
      background:#fff;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .proof-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .proof-top{
      display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:18px;
    }
    .proof-avatar{
      width:48px;height:48px;border-radius:17px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      color:#fff;font-weight:950;
    }
    .proof-card h3{font-size:20px;font-weight:950;margin:0 0 8px}
    .proof-card p{color:var(--muted);margin:0 0 18px}
    .before-after{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
    }
    .ba-box{
      border-radius:16px;
      padding:12px;
      background:#f7f8fc;
      font-size:13px;
      color:#667085;
    }
    .ba-box strong{display:block;color:#111827;margin-bottom:4px}
    .ba-box.after{background:var(--accent-soft)}

    .pricing-section{
      background:
        radial-gradient(circle at 80% 10%,rgba(0,212,166,.16),transparent 32%),
        linear-gradient(180deg,#fff 0%,#f6f7fb 100%);
    }
    .pricing-layout{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:26px;
      margin-top:34px;
      align-items:stretch;
    }
    .price-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:32px;
      padding:30px;
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .price-card.featured{
      color:#fff;
      background:linear-gradient(145deg,#12162b,#331868);
      border-color:rgba(255,255,255,.12);
    }
    .price-card h3{font-size:26px;font-weight:950;margin:0 0 10px}
    .price-card p{color:var(--muted);margin:0 0 20px}
    .price-card.featured p{color:rgba(255,255,255,.68)}
    .price{
      font-size:46px;
      line-height:1;
      font-weight:950;
      letter-spacing:-.05em;
      margin:0 0 8px;
    }
    .price small{font-size:16px;color:var(--muted);font-weight:800}
    .price-card.featured .price small{color:rgba(255,255,255,.62)}
    .price-list{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:12px}
    .price-list li{display:flex;gap:10px;align-items:flex-start;color:#475467}
    .featured .price-list li{color:rgba(255,255,255,.76)}
    .price-list li::before{
      content:"";
      flex:0 0 20px;width:20px;height:20px;border-radius:50%;
      background:var(--accent);
      margin-top:4px;
      box-shadow:inset 0 0 0 6px rgba(255,255,255,.38);
    }
    .booking-panel{
      background:#fff;
      border:1px solid var(--border);
      border-radius:32px;
      padding:30px;
      box-shadow:var(--shadow-sm);
    }
    .booking-panel h3{font-size:26px;font-weight:950;margin:0 0 8px}
    .booking-panel p{margin:0 0 20px;color:var(--muted)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .form-field{display:grid;gap:7px}
    .form-field.full{grid-column:1/-1}
    .form-field label{font-weight:900;color:#344054;font-size:14px}
    .form-field input,.form-field select,.form-field textarea{
      border:1px solid var(--border);
      border-radius:16px;
      padding:13px 14px;
      background:#f8f9fd;
      transition:var(--ease);
      color:#111827;
    }
    .form-field textarea{min-height:96px;resize:vertical}
    .form-field input:focus,.form-field select:focus,.form-field textarea:focus{
      outline:none;
      border-color:rgba(124,58,237,.5);
      background:#fff;
      box-shadow:0 0 0 4px rgba(124,58,237,.1);
    }
    .form-note{font-size:13px;color:var(--muted);margin-top:12px}

    .faq-section{background:#fff}
    .faq-layout{
      margin-top:34px;
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:28px;
      align-items:start;
    }
    .faq-aside{
      padding:28px;
      border-radius:30px;
      background:var(--surface-2);
      border:1px solid var(--border);
    }
    .faq-aside h3{font-weight:950;font-size:24px;margin:0 0 10px}
    .faq-aside p{color:var(--muted);margin:0 0 18px}
    .accordion{
      display:grid;
      gap:14px;
    }
    .accordion-item{
      border:1px solid var(--border)!important;
      border-radius:22px!important;
      overflow:hidden;
      box-shadow:0 8px 20px rgba(16,24,40,.04);
    }
    .accordion-button{
      padding:19px 22px;
      font-weight:950;
      color:#111827;
      background:#fff;
      box-shadow:none!important;
      border-radius:22px!important;
    }
    .accordion-button:not(.collapsed){
      color:var(--primary-dark);
      background:var(--primary-soft);
    }
    .accordion-body{
      color:var(--muted);
      padding:0 22px 20px;
      background:#fff;
    }

    .cta-band{
      padding:54px 0;
      background:#0d1020;
      color:#fff;
      position:relative;
      overflow:hidden;
    }
    .cta-band::before{
      content:"";
      position:absolute;inset:0;
      background:
        radial-gradient(circle at 20% 20%,rgba(124,58,237,.35),transparent 32%),
        radial-gradient(circle at 75% 60%,rgba(0,212,166,.2),transparent 34%);
      pointer-events:none;
    }
    .cta-box{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      padding:34px;
      border-radius:34px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
      backdrop-filter:blur(16px);
    }
    .cta-box h2{font-size:34px;font-weight:950;margin:0 0 8px;letter-spacing:-.03em}
    .cta-box p{margin:0;color:rgba(255,255,255,.7);max-width:680px}

    .site-footer{
      background:#090b14;
      color:rgba(255,255,255,.72);
      padding:54px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:34px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .footer-brand{
      display:flex;align-items:center;gap:12px;
      color:#fff;font-weight:950;font-size:21px;margin-bottom:14px;
    }
    .footer-brand .brand-mark{width:40px;height:40px}
    .footer-title{font-weight:950;color:#fff;margin-bottom:14px}
    .footer-links{list-style:none;margin:0;padding:0;display:grid;gap:10px}
    .footer-links a{color:rgba(255,255,255,.68)}
    .footer-links a:hover{color:#fff}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:18px;
      padding-top:24px;
      font-size:14px;
      color:rgba(255,255,255,.52);
    }

    @media (max-width:1024px){
      .hero-grid,.spec-layout,.scenario-grid,.news-layout,.pricing-layout,.faq-layout{
        grid-template-columns:1fr;
      }
      .spec-intro{position:relative;top:auto}
      .hero-visual-wrap{min-height:430px}
      .ribbon-card{grid-template-columns:repeat(2,1fr)}
      .analytics-card.wide,.analytics-card.side{grid-column:span 12}
      .analytics-card.small{grid-column:span 4}
      .calendar-wrap{grid-template-columns:repeat(3,1fr)}
      .proof-grid{grid-template-columns:1fr}
    }
    @media (max-width:768px){
      .section{padding:64px 0}
      .brand-row .container-xl{gap:12px}
      .brand-logo{font-size:18px}
      .header-search{display:none}
      .nav-cta{display:none}
      .hero{padding:58px 0 74px}
      .hero-grid{gap:30px}
      .hero p{font-size:16px}
      .hero-kpis{grid-template-columns:1fr}
      .hero-visual-wrap{
        min-height:380px;
        transform:none;
      }
      .hero-visual{inset:0;border-radius:28px}
      .visual-inner{
        transform:none;
        inset:20px;
        grid-template-columns:1fr;
      }
      .side-stack{grid-template-columns:1fr 1fr}
      .big-panel .play-orb{margin:34px auto 24px}
      .floating-tag{transform:none;right:14px;top:14px}
      .spec-row{grid-template-columns:1fr;gap:8px}
      .analytics-card.small{grid-column:span 12}
      .change-item{grid-template-columns:1fr;gap:10px}
      .news-row{grid-template-columns:1fr;gap:10px}
      .news-link{justify-self:start}
      .calendar-wrap{grid-template-columns:1fr 1fr}
      .form-grid{grid-template-columns:1fr}
      .cta-box{flex-direction:column;align-items:flex-start}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column}
    }
    @media (max-width:520px){
      .container-xl{padding-left:18px;padding-right:18px}
      .section-title{font-size:30px}
      .hero h1{font-size:38px}
      .hero-actions{flex-direction:column}
      .btn-main,.btn-ghost,.btn-lightline{width:100%}
      .ribbon-card{grid-template-columns:1fr}
      .hero-visual-wrap{min-height:500px}
      .side-stack{grid-template-columns:1fr}
      .calendar-wrap{grid-template-columns:1fr}
      .meter-item{grid-template-columns:1fr;gap:8px}
      .price{font-size:38px}
      .cta-box{padding:26px}
    }

/* 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}