/* roulang page: index */
:root{
      --bg:#f7fbfc;
      --surface:#ffffff;
      --surface-2:#eef8fb;
      --ink:#14212b;
      --muted:#64748b;
      --weak:#8aa0ae;
      --brand:#12a8d8;
      --brand-dark:#076d94;
      --accent:#ffb84d;
      --accent-2:#28d69b;
      --danger:#ff6b6b;
      --line:rgba(20,33,43,.11);
      --shadow-sm:0 10px 30px rgba(7,109,148,.08);
      --shadow-md:0 22px 70px rgba(7,109,148,.14);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:
        radial-gradient(circle at 8% 0%, rgba(18,168,216,.16), transparent 34%),
        radial-gradient(circle at 92% 12%, rgba(255,184,77,.18), transparent 32%),
        linear-gradient(180deg,#f9fdff 0%,var(--bg) 48%,#f5fbf8 100%);
      color:var(--ink);
      font-family:Inter,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(18,168,216,.18);color:var(--brand-dark)}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:60;
      background:rgba(247,251,252,.82);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line);
    }
    .nav-shell{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:16px 0}
    .brand-logo{display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:-.02em}
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      background:linear-gradient(135deg,var(--brand),#42e6bd);
      box-shadow:0 14px 32px rgba(18,168,216,.28);
      display:grid;place-items:center;color:white;font-weight:900;
    }
    .brand-name{font-size:17px;max-width:290px;line-height:1.25}
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-link{
      padding:10px 14px;border-radius:999px;color:#365263;
      font-weight:700;font-size:14px;transition:.22s ease;
    }
    .nav-link:hover,.nav-link:focus{background:rgba(18,168,216,.1);color:var(--brand-dark);outline:none}
    .nav-link.active{background:#e4f7fd;color:var(--brand-dark)}
    .nav-action{
      display:inline-flex;align-items:center;gap:8px;padding:11px 17px;border-radius:999px;
      background:var(--ink);color:#fff;font-weight:800;font-size:14px;
      box-shadow:0 16px 34px rgba(20,33,43,.16);transition:.22s ease;
    }
    .nav-action:hover{transform:translateY(-2px);box-shadow:0 20px 44px rgba(20,33,43,.22)}
    .menu-btn{
      display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:14px;background:white;
      align-items:center;justify-content:center;transition:.2s ease;
    }
    .menu-btn:hover{border-color:rgba(18,168,216,.35);background:#f0fbff}
    .steps-bar{border-top:1px solid rgba(20,33,43,.06);padding:10px 0 13px}
    .steps-scroll{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
    .step-item{
      position:relative;display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);
      border-radius:16px;background:rgba(255,255,255,.7);font-size:13px;font-weight:800;color:#45606f;
      transition:.22s ease;overflow:hidden;
    }
    .step-item:before{
      content:"";width:24px;height:24px;border-radius:50%;
      background:linear-gradient(135deg,var(--brand),#58dfbd);box-shadow:0 8px 18px rgba(18,168,216,.18);
      flex:none;
    }
    .step-item:after{content:"";position:absolute;left:0;bottom:0;width:45%;height:3px;background:var(--brand);opacity:.5}
    .step-item:hover{transform:translateY(-1px);background:#fff;border-color:rgba(18,168,216,.32)}
    .section{padding:88px 0}
    .section.tight{padding:64px 0}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:34px}
    .section-kicker{
      display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;
      color:var(--brand-dark);font-size:13px;font-weight:900;letter-spacing:.08em;
    }
    .section-title{font-size:clamp(28px,4vw,46px);line-height:1.18;font-weight:950;letter-spacing:-.04em;margin:0}
    .section-desc{max-width:650px;color:var(--muted);font-size:16px;margin:14px 0 0}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;
      padding:13px 20px;font-weight:900;transition:.24s ease;border:1px solid transparent;white-space:nowrap;
    }
    .btn:focus{outline:4px solid rgba(18,168,216,.18);outline-offset:2px}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#17caa4);color:white;box-shadow:0 18px 42px rgba(18,168,216,.26)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 54px rgba(18,168,216,.34)}
    .btn-dark{background:var(--ink);color:#fff;box-shadow:0 18px 42px rgba(20,33,43,.18)}
    .btn-dark:hover{transform:translateY(-2px);background:#0b1720}
    .btn-soft{background:#fff;color:var(--brand-dark);border-color:rgba(18,168,216,.2);box-shadow:var(--shadow-sm)}
    .btn-soft:hover{border-color:rgba(18,168,216,.45);transform:translateY(-2px)}
    .badge{
      display:inline-flex;align-items:center;gap:8px;border-radius:999px;
      padding:7px 11px;background:rgba(18,168,216,.1);color:var(--brand-dark);
      font-size:13px;font-weight:900;
    }
    .hero{padding:44px 0 72px}
    .hero-card{
      min-height:620px;border:1px solid rgba(255,255,255,.78);border-radius:36px;overflow:hidden;position:relative;
      background:
        linear-gradient(120deg,rgba(4,31,43,.82),rgba(7,109,148,.62) 47%,rgba(18,168,216,.16)),
        url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="1200" height="720" viewBox="0 0 1200 720"><defs><linearGradient id="g" x1="0" x2="1"><stop stop-color="%230a2633"/><stop offset="1" stop-color="%2312a8d8"/></linearGradient></defs><rect width="1200" height="720" fill="url(/%23g)"/><circle cx="1010" cy="90" r="210" fill="%23ffb84d" opacity=".18"/><circle cx="210" cy="560" r="260" fill="%2328d69b" opacity=".16"/><path d="M90 560 C260 440 360 650 540 510 S850 330 1110 470" fill="none" stroke="%23ffffff" stroke-width="3" opacity=".16"/><g opacity=".12" fill="%23fff"><rect x="725" y="95" width="210" height="380" rx="34"/><rect x="955" y="155" width="92" height="210" rx="22"/><rect x="610" y="190" width="84" height="250" rx="22"/></g></svg>');
      background-size:cover;background-position:center;
      box-shadow:var(--shadow-md);
      display:grid;grid-template-columns:1.05fr .95fr;align-items:stretch;
    }
    .hero-copy{padding:72px 58px;color:white;display:flex;flex-direction:column;justify-content:center;position:relative;z-index:2}
    .hero h1{font-size:clamp(38px,6vw,76px);line-height:1.02;letter-spacing:-.07em;font-weight:950;margin:18px 0 22px;max-width:760px}
    .hero-intro{font-size:18px;line-height:1.9;color:rgba(255,255,255,.84);max-width:670px;margin:0 0 28px}
    .hero-ctas{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
    .hero-ctas .btn-soft{background:rgba(255,255,255,.12);color:white;border-color:rgba(255,255,255,.28);box-shadow:none}
    .hero-ctas .btn-soft:hover{background:rgba(255,255,255,.18)}
    .hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;max-width:660px}
    .stat-pill{
      padding:16px;border:1px solid rgba(255,255,255,.18);border-radius:20px;
      background:rgba(255,255,255,.1);backdrop-filter:blur(12px)
    }
    .stat-pill strong{display:block;font-size:25px;line-height:1;font-weight:950}
    .stat-pill span{display:block;margin-top:8px;color:rgba(255,255,255,.72);font-size:13px}
    .vertical-stage{
      position:relative;padding:42px 38px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;align-items:center;
      min-height:620px;
    }
    .story-panel{
      height:420px;border-radius:28px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.22);
      backdrop-filter:blur(15px);box-shadow:0 24px 60px rgba(0,0,0,.16);overflow:hidden;position:relative;
      display:flex;flex-direction:column;justify-content:flex-end;padding:18px;color:white;transition:.28s ease;
    }
    .story-panel:nth-child(2){height:500px;transform:translateY(-18px);background:rgba(255,255,255,.22)}
    .story-panel:nth-child(3){height:360px;transform:translateY(32px)}
    .story-panel:hover{transform:translateY(-8px) scale(1.01)}
    .story-panel:nth-child(2):hover{transform:translateY(-26px) scale(1.01)}
    .story-panel:before{
      content:"";position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(7,109,148,.1),rgba(4,31,43,.76));
      z-index:0;
    }
    .panel-lines{position:absolute;top:18px;left:18px;right:18px;display:grid;gap:8px;z-index:1}
    .panel-lines i{height:8px;border-radius:999px;background:rgba(255,255,255,.28)}
    .panel-lines i:nth-child(2){width:72%}.panel-lines i:nth-child(3){width:48%}
    .story-panel b,.story-panel em{position:relative;z-index:1;font-style:normal}
    .story-panel b{font-size:18px;font-weight:950}
    .story-panel em{font-size:13px;color:rgba(255,255,255,.72);margin-top:5px}
    .countdown-wrap{
      display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:stretch
    }
    .count-card,.group-card,.highlight-card,.ticket-card,.news-card,.form-card,.faq-item{
      background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:var(--radius-xl);
      box-shadow:var(--shadow-sm);
    }
    .count-card{padding:34px;position:relative;overflow:hidden}
    .count-card:after{
      content:"";position:absolute;right:-60px;top:-90px;width:260px;height:260px;border-radius:50%;
      background:rgba(255,184,77,.22);
    }
    .timer{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin-top:24px;position:relative;z-index:1}
    .time-box{border-radius:22px;background:#0f2632;color:white;padding:18px 12px;text-align:center}
    .time-box strong{display:block;font-size:34px;line-height:1;font-weight:950}
    .time-box span{display:block;margin-top:8px;color:rgba(255,255,255,.68);font-size:13px}
    .progress-track{height:12px;background:#e7f3f6;border-radius:999px;overflow:hidden;margin:20px 0 12px}
    .progress-fill{height:100%;width:78%;background:linear-gradient(90deg,var(--brand),var(--accent-2),var(--accent));border-radius:999px}
    .group-card{padding:28px}
    .group-list{display:grid;gap:13px;margin-top:20px}
    .group-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px;border-radius:18px;background:#f7fbfc;border:1px solid rgba(20,33,43,.07)}
    .avatar-stack{display:flex;align-items:center}
    .avatar{width:32px;height:32px;border-radius:50%;border:2px solid #fff;background:linear-gradient(135deg,#dff3ff,#ffdca2);margin-left:-8px}
    .avatar:first-child{margin-left:0}
    .highlight-grid{
      display:grid;grid-template-columns:1.1fr .9fr .9fr;grid-template-rows:repeat(2,220px);gap:18px
    }
    .highlight-card{padding:26px;overflow:hidden;position:relative;transition:.24s ease}
    .highlight-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
    .highlight-card.large{grid-row:span 2;background:linear-gradient(145deg,#083142,#0a84aa);color:white}
    .highlight-card.large p{color:rgba(255,255,255,.74)}
    .highlight-icon{
      width:48px;height:48px;border-radius:17px;display:grid;place-items:center;
      background:rgba(18,168,216,.12);color:var(--brand-dark);font-weight:950;margin-bottom:18px;
    }
    .highlight-card.large .highlight-icon{background:rgba(255,255,255,.16);color:white}
    .highlight-card h3,.ticket-card h3,.news-card h3,.form-card h3{font-size:22px;line-height:1.28;font-weight:950;margin:0 0 10px}
    .highlight-card p,.ticket-card p,.news-card p,.form-card p{color:var(--muted);margin:0}
    .screen-stage{margin-top:24px;border-radius:24px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);padding:16px}
    .screen-top{display:flex;gap:6px;margin-bottom:14px}
    .screen-top i{width:9px;height:9px;border-radius:50%;background:#fff;opacity:.55}
    .screen-line{height:12px;border-radius:999px;background:rgba(255,255,255,.18);margin:10px 0}
    .screen-line:nth-child(2){width:88%}.screen-line:nth-child(3){width:66%}.screen-line:nth-child(4){width:76%}
    .ticket-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .ticket-card{padding:28px;position:relative;transition:.24s ease}
    .ticket-card.featured{background:linear-gradient(180deg,#ffffff,#effcff);border-color:rgba(18,168,216,.36);box-shadow:0 26px 70px rgba(18,168,216,.18)}
    .ticket-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
    .price{display:flex;align-items:flex-end;gap:5px;margin:18px 0 14px}
    .price strong{font-size:42px;line-height:1;font-weight:950;letter-spacing:-.04em}
    .price span{color:var(--weak);font-weight:800}
    .feature-list{display:grid;gap:10px;margin:20px 0 24px;padding:0;list-style:none}
    .feature-list li{display:flex;gap:9px;color:#455f6d;font-size:14px}
    .feature-list li:before{content:"✓";color:var(--accent-2);font-weight:950}
    .tier-progress{margin-top:20px;padding:18px;border-radius:22px;background:#f6fbfd;border:1px solid rgba(20,33,43,.06)}
    .tier-nodes{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:12px}
    .tier-node{height:8px;border-radius:999px;background:#d9eef4}
    .tier-node.active{background:linear-gradient(90deg,var(--brand),var(--accent-2))}
    .news-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}
    .news-list{display:grid;gap:14px}
    .news-link{
      display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;padding:18px;
      border-radius:22px;background:white;border:1px solid var(--line);transition:.22s ease;
    }
    .news-link:hover{transform:translateX(4px);border-color:rgba(18,168,216,.34);box-shadow:var(--shadow-sm)}
    .news-date{width:64px;height:64px;border-radius:18px;background:#eaf8fc;color:var(--brand-dark);display:grid;place-items:center;font-weight:950;line-height:1.1;text-align:center}
    .news-link h3{font-size:18px;font-weight:950;margin:0 0 4px}
    .news-link p{margin:0;color:var(--muted);font-size:14px}
    .news-arrow{color:var(--brand-dark);font-weight:950}
    .recommend-box{background:#0f2632;color:white;border-radius:var(--radius-xl);padding:28px;box-shadow:var(--shadow-md);position:sticky;top:132px}
    .recommend-box p{color:rgba(255,255,255,.72)}
    .recommend-mini{display:grid;gap:12px;margin-top:20px}
    .mini-item{padding:14px;border-radius:18px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.12)}
    .cta-band{
      border-radius:34px;background:
        linear-gradient(135deg,rgba(18,168,216,.95),rgba(40,214,155,.88)),
        radial-gradient(circle at 80% 20%,rgba(255,184,77,.6),transparent 36%);
      color:white;padding:42px;box-shadow:var(--shadow-md);display:grid;grid-template-columns:1fr .86fr;gap:28px;align-items:center;
    }
    .cta-band p{color:rgba(255,255,255,.82)}
    .form-card{padding:26px;background:rgba(255,255,255,.92)}
    .field-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
    .input{
      width:100%;border:1px solid rgba(20,33,43,.12);background:#fff;border-radius:16px;padding:13px 14px;
      color:var(--ink);transition:.2s ease;
    }
    .input:focus{outline:none;border-color:rgba(18,168,216,.62);box-shadow:0 0 0 4px rgba(18,168,216,.12)}
    .form-note{font-size:13px;color:var(--muted);margin-top:12px}
    .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px;align-items:start}
    .faq-list{display:grid;gap:14px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 22px;
      background:transparent;border:0;color:var(--ink);font-weight:950;text-align:left;
    }
    .faq-q span{font-size:18px}
    .faq-q i{font-style:normal;width:28px;height:28px;border-radius:50%;background:#eaf8fc;color:var(--brand-dark);display:grid;place-items:center;flex:none}
    .faq-a{display:none;padding:0 22px 22px;color:var(--muted)}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q i{background:var(--brand);color:white;transform:rotate(45deg)}
    .site-footer{padding:54px 0 30px;background:#0b1f2a;color:white;margin-top:40px}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:26px}
    .footer-brand p{color:rgba(255,255,255,.68);max-width:560px}
    .footer-title{font-weight:950;margin-bottom:14px}
    .footer-links{display:grid;gap:10px;color:rgba(255,255,255,.68)}
    .footer-links a:hover{color:white}
    .footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:36px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.55);font-size:14px}
    .floating-cta{
      position:fixed;left:50%;bottom:18px;transform:translateX(-50%);z-index:55;
      display:none;align-items:center;gap:12px;padding:10px 12px 10px 16px;border-radius:999px;background:rgba(11,31,42,.92);
      color:white;box-shadow:0 20px 52px rgba(0,0,0,.22);backdrop-filter:blur(14px)
    }
    .floating-cta span{font-weight:800;font-size:14px}
    @media (max-width:1024px){
      .hero-card{grid-template-columns:1fr}
      .vertical-stage{min-height:auto;padding:0 36px 44px}
      .countdown-wrap,.cta-band,.faq-grid{grid-template-columns:1fr}
      .highlight-grid{grid-template-columns:1fr 1fr;grid-template-rows:auto}
      .highlight-card.large{grid-row:auto;grid-column:span 2}
      .ticket-grid{grid-template-columns:1fr}
      .news-layout{grid-template-columns:1fr}
      .recommend-box{position:relative;top:auto}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .nav-links,.nav-action{display:none}
      .menu-btn{display:flex}
      .site-header.open .nav-links{
        display:grid;position:absolute;left:14px;right:14px;top:74px;background:white;border:1px solid var(--line);
        border-radius:22px;padding:12px;box-shadow:var(--shadow-md)
      }
      .site-header.open .nav-action{display:inline-flex;position:absolute;right:28px;top:168px}
      .steps-scroll{display:flex;overflow-x:auto;padding-bottom:4px}
      .step-item{min-width:220px}
      .hero{padding-top:26px}
      .hero-card{min-height:auto;border-radius:28px}
      .hero-copy{padding:46px 24px}
      .hero-stats,.timer{grid-template-columns:repeat(2,1fr)}
      .vertical-stage{grid-template-columns:1fr 1fr;gap:12px;padding:0 20px 32px}
      .story-panel{height:260px}
      .story-panel:nth-child(2){height:300px}
      .story-panel:nth-child(3){display:none}
      .section{padding:66px 0}
      .section-head{display:block}
      .highlight-grid{grid-template-columns:1fr}
      .highlight-card.large{grid-column:auto}
      .field-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .floating-cta{display:flex;width:calc(100% - 28px);justify-content:space-between}
    }
    @media (max-width:520px){
      .brand-name{font-size:15px;max-width:210px}
      .hero h1{font-size:38px}
      .hero-intro{font-size:16px}
      .hero-ctas{display:grid}
      .hero-stats,.timer,.vertical-stage{grid-template-columns:1fr}
      .story-panel:nth-child(2){transform:none}
      .story-panel:nth-child(2):hover{transform:translateY(-6px)}
      .count-card,.group-card,.ticket-card,.form-card{padding:22px}
      .time-box strong{font-size:28px}
      .news-link{grid-template-columns:1fr;gap:10px}
      .news-date{width:auto;height:auto;padding:10px}
      .cta-band{padding:28px 20px;border-radius:26px}
    }