/* roulang page: index */
:root{
      --primary:#ef4f3c;
      --primary-dark:#dc3828;
      --secondary:#ffb547;
      --accent:#1f9d8a;
      --ink:#202126;
      --muted:#6b6f7a;
      --soft:#fff7ed;
      --cream:#fffaf2;
      --paper:#ffffff;
      --line:rgba(32,33,38,.10);
      --line-strong:rgba(32,33,38,.16);
      --shadow:0 18px 55px rgba(52,17,15,.12);
      --shadow-card:0 12px 35px rgba(32,33,38,.08);
      --radius:24px;
      --radius-lg:34px;
      --nav-h:82px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      line-height:1.75;
      background:
        radial-gradient(circle at 8% 2%, rgba(255,181,71,.18), transparent 34rem),
        radial-gradient(circle at 92% 8%, rgba(239,79,60,.13), transparent 35rem),
        linear-gradient(180deg,#fffaf2 0%,#ffffff 46%,#fff7ed 100%);
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(239,79,60,.18)}
    .site-container{width:min(1180px, calc(100% - 40px));margin-inline:auto}
    .skip-link{
      position:absolute;left:18px;top:-60px;z-index:100;
      background:var(--ink);color:#fff;padding:10px 14px;border-radius:999px;
      transition:top .2s ease;
    }
    .skip-link:focus{top:14px;outline:3px solid rgba(239,79,60,.35)}
    .glass{
      background:rgba(255,255,255,.78);
      border:1px solid rgba(255,255,255,.78);
      box-shadow:var(--shadow-card);
      backdrop-filter:blur(18px);
    }
    .top-notice{
      background:linear-gradient(90deg,#34110f,#6f2018 45%,#ef4f3c);
      color:#fff;
      font-size:13px;
      letter-spacing:.01em;
    }
    .notice-dot{width:8px;height:8px;border-radius:999px;background:#ffcc66;box-shadow:0 0 0 6px rgba(255,204,102,.16)}
    .site-header{
      position:sticky;top:0;z-index:60;
      background:rgba(255,250,242,.86);
      backdrop-filter:blur(20px);
      border-bottom:1px solid rgba(32,33,38,.08);
    }
    .nav-wrap{
      min-height:var(--nav-h);
      display:grid;
      grid-template-columns:auto minmax(260px,1fr) auto;
      align-items:center;
      gap:18px;
    }
    .brand-mark{
      display:inline-flex;align-items:center;gap:10px;font-weight:900;letter-spacing:-.03em;
      white-space:nowrap;
    }
    .brand-icon{
      width:42px;height:42px;border-radius:16px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),#ff8a4c);
      color:#fff;box-shadow:0 12px 24px rgba(239,79,60,.26);
      position:relative;overflow:hidden;
    }
    .brand-icon::after{
      content:"";position:absolute;inset:-45% auto auto -25%;width:60px;height:60px;
      border-radius:999px;background:rgba(255,255,255,.25);
    }
    .search-shell{
      display:flex;align-items:center;gap:10px;
      background:#fff;border:1px solid var(--line);
      border-radius:999px;padding:9px 12px 9px 16px;
      box-shadow:0 10px 25px rgba(32,33,38,.05);
      transition:border-color .2s ease, box-shadow .2s ease, transform .2s ease;
    }
    .search-shell:focus-within{border-color:rgba(239,79,60,.55);box-shadow:0 0 0 5px rgba(239,79,60,.10)}
    .search-shell svg{width:18px;height:18px;color:var(--muted);flex:0 0 auto}
    .search-shell input{
      width:100%;border:0;outline:0;background:transparent;color:var(--ink);
      min-width:0;font-size:14px;
    }
    .search-shell input::placeholder{color:#9a9da6}
    .search-chip{
      flex:0 0 auto;border:0;border-radius:999px;
      background:var(--ink);color:#fff;
      padding:7px 12px;font-size:13px;font-weight:700;
      transition:transform .2s ease, background .2s ease;
    }
    .search-chip:hover{background:var(--primary);transform:translateY(-1px)}
    .nav-links{display:flex;align-items:center;gap:8px;justify-content:flex-end}
    .nav-link{
      padding:10px 15px;border-radius:999px;font-size:14px;font-weight:800;color:#474b55;
      transition:background .2s ease,color .2s ease,transform .2s ease;
    }
    .nav-link:hover,.nav-link.active{background:#fff;color:var(--primary);box-shadow:0 8px 20px rgba(32,33,38,.06)}
    .nav-cta{
      display:inline-flex;align-items:center;gap:8px;
      border-radius:999px;padding:11px 16px;
      color:#fff;background:linear-gradient(135deg,var(--primary),#ff7a45);
      font-weight:900;font-size:14px;
      box-shadow:0 14px 26px rgba(239,79,60,.24);
      transition:transform .2s ease, box-shadow .2s ease, filter .2s ease;
    }
    .nav-cta:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(239,79,60,.30);filter:saturate(1.05)}
    .section{padding:78px 0}
    .section-tight{padding:56px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      color:var(--primary-dark);background:rgba(239,79,60,.09);
      border:1px solid rgba(239,79,60,.13);
      border-radius:999px;padding:7px 12px;
      font-size:13px;font-weight:900;
    }
    .eyebrow::before{content:"";width:7px;height:7px;border-radius:999px;background:currentColor}
    .section-title{
      font-size:clamp(28px,4vw,48px);
      line-height:1.14;
      letter-spacing:-.05em;
      font-weight:950;
      margin:14px 0 14px;
    }
    .section-desc{color:var(--muted);font-size:16px;max-width:760px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      border:1px solid transparent;border-radius:999px;
      padding:13px 18px;font-weight:900;line-height:1.1;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
    }
    .btn:focus-visible,.nav-link:focus-visible,.nav-cta:focus-visible,.faq-btn:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
      outline:3px solid rgba(239,79,60,.24);outline-offset:3px;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),#ff7b45);color:#fff;box-shadow:0 16px 34px rgba(239,79,60,.27)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 42px rgba(239,79,60,.34)}
    .btn-dark{background:var(--ink);color:#fff;box-shadow:0 16px 34px rgba(32,33,38,.18)}
    .btn-dark:hover{transform:translateY(-2px);background:#000}
    .btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:0 10px 24px rgba(32,33,38,.06)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:rgba(239,79,60,.35);color:var(--primary)}
    .hero{
      padding:34px 0 74px;
      position:relative;
    }
    .flash-strip{
      display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;
      border-radius:28px;
      padding:13px 16px;
      background:linear-gradient(90deg,#21100e 0%,#5b1b15 48%,#ef4f3c 100%);
      color:#fff;box-shadow:var(--shadow);
      overflow:hidden;position:relative;
    }
    .flash-strip::after{
      content:"";position:absolute;inset:0;
      background:linear-gradient(120deg,transparent 0%,rgba(255,255,255,.18) 45%,transparent 58%);
      transform:translateX(-100%);
      animation:sheen 4.8s infinite;
    }
    @keyframes sheen{50%,100%{transform:translateX(120%)}}
    .flash-label{position:relative;z-index:1;display:flex;align-items:center;gap:10px;font-weight:950}
    .countdown{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;gap:8px;font-weight:900}
    .timebox{min-width:42px;text-align:center;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.22);border-radius:14px;padding:5px 8px}
    .hero-stage{
      margin-top:22px;
      display:grid;
      grid-template-columns:1.07fr .93fr;
      gap:22px;
      align-items:stretch;
    }
    .hero-copy{
      border-radius:38px;
      padding:clamp(26px,4vw,50px);
      background:
        radial-gradient(circle at 15% 10%, rgba(255,181,71,.28), transparent 24rem),
        linear-gradient(135deg,#fff 0%,#fff8ee 100%);
      border:1px solid rgba(32,33,38,.08);
      box-shadow:var(--shadow-card);
      position:relative;overflow:hidden;
    }
    .hero-copy::after{
      content:"";position:absolute;right:-92px;bottom:-120px;width:270px;height:270px;
      border-radius:999px;background:rgba(239,79,60,.09);
      border:35px solid rgba(255,181,71,.12);
    }
    .hero h1{
      position:relative;z-index:1;
      margin:16px 0 16px;
      font-size:clamp(36px,6vw,72px);
      line-height:1.02;
      letter-spacing:-.07em;
      font-weight:950;
    }
    .hero-lead{
      position:relative;z-index:1;
      max-width:720px;
      color:#535761;
      font-size:clamp(16px,2vw,19px);
      line-height:1.8;
    }
    .hero-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
    .hero-metrics{position:relative;z-index:1;display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:30px}
    .metric{
      background:#fff;border:1px solid var(--line);border-radius:22px;padding:16px;
      box-shadow:0 8px 22px rgba(32,33,38,.05);
    }
    .metric strong{display:block;font-size:24px;line-height:1;font-weight:950;color:var(--primary)}
    .metric span{display:block;margin-top:8px;font-size:13px;color:var(--muted);line-height:1.45}
    .product-card{
      border-radius:38px;
      padding:22px;
      background:#fff;
      border:1px solid rgba(32,33,38,.09);
      box-shadow:var(--shadow);
      position:relative;overflow:hidden;
    }
    .ticket-rip{
      position:absolute;left:-14px;top:50%;width:28px;height:28px;border-radius:999px;background:var(--cream);
      box-shadow:calc(100vw) 0 0 0 var(--cream);
    }
    .product-visual{
      min-height:226px;border-radius:30px;
      background:
        linear-gradient(135deg,rgba(52,17,15,.92),rgba(239,79,60,.86)),
        radial-gradient(circle at 20% 20%,rgba(255,255,255,.28),transparent 18rem);
      color:#fff;position:relative;overflow:hidden;padding:24px;
      display:flex;flex-direction:column;justify-content:space-between;
    }
    .product-visual::before{
      content:"";position:absolute;right:-38px;top:-42px;width:160px;height:160px;border-radius:42px;
      background:rgba(255,255,255,.12);transform:rotate(18deg);
    }
    .product-visual::after{
      content:"";position:absolute;right:42px;bottom:28px;width:78px;height:78px;border-radius:999px;
      border:18px solid rgba(255,255,255,.13);
    }
    .tag-row{display:flex;flex-wrap:wrap;gap:8px}
    .tag{
      display:inline-flex;align-items:center;gap:7px;
      border-radius:999px;padding:7px 10px;
      font-size:12px;font-weight:900;
      background:rgba(255,255,255,.14);
      border:1px solid rgba(255,255,255,.20);
      color:inherit;
    }
    .coupon-line{
      display:flex;align-items:center;justify-content:space-between;gap:14px;
      padding:15px 0;border-bottom:1px dashed rgba(32,33,38,.16);
    }
    .coupon-line:last-child{border-bottom:0}
    .coupon-line small{color:var(--muted)}
    .price{font-size:34px;font-weight:950;color:var(--primary);letter-spacing:-.04em}
    .progress{
      height:10px;background:#f1eee9;border-radius:999px;overflow:hidden;
    }
    .progress span{display:block;height:100%;width:72%;background:linear-gradient(90deg,var(--secondary),var(--primary));border-radius:999px}
    .card{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius);
      box-shadow:var(--shadow-card);
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .card:hover{transform:translateY(-5px);box-shadow:0 18px 46px rgba(32,33,38,.10);border-color:rgba(239,79,60,.22)}
    .feature-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:16px;margin-top:28px}
    .feature-card{padding:24px;min-height:220px;display:flex;flex-direction:column;justify-content:space-between}
    .icon-pill{
      width:46px;height:46px;border-radius:16px;
      display:grid;place-items:center;
      background:rgba(239,79,60,.10);color:var(--primary);
      font-weight:950;
    }
    .feature-card h3,.demo-panel h3,.social-card h3,.entry-card h3,.plan-card h3{font-size:20px;font-weight:950;letter-spacing:-.03em;margin:18px 0 8px}
    .feature-card p,.demo-panel p,.social-card p,.entry-card p,.plan-card p{color:var(--muted);font-size:14px;line-height:1.75}
    .demo-wrap{
      display:grid;grid-template-columns:.92fr 1.08fr;gap:22px;align-items:start;margin-top:30px;
    }
    .demo-list{display:grid;gap:12px}
    .demo-step{
      display:grid;grid-template-columns:46px 1fr;gap:14px;align-items:start;
      padding:17px;border-radius:24px;background:#fff;border:1px solid var(--line);
      transition:transform .2s ease, border-color .2s ease;
    }
    .demo-step:hover{transform:translateX(4px);border-color:rgba(31,157,138,.25)}
    .step-num{width:46px;height:46px;border-radius:16px;background:#e9fbf7;color:#10806f;display:grid;place-items:center;font-weight:950}
    .demo-board{
      border-radius:34px;padding:20px;background:#21100e;color:#fff;box-shadow:var(--shadow);
      overflow:hidden;position:relative;
    }
    .demo-board::before{content:"";position:absolute;inset:auto -90px -100px auto;width:250px;height:250px;border-radius:999px;background:rgba(239,79,60,.30)}
    .board-row{
      position:relative;display:flex;align-items:center;justify-content:space-between;gap:14px;
      padding:16px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.07);
      border-radius:22px;margin-top:12px;
    }
    .board-row strong{font-weight:950}
    .board-row span{color:rgba(255,255,255,.72);font-size:13px}
    .entry-matrix{display:grid;grid-template-columns:1.25fr .75fr;gap:18px;margin-top:30px}
    .entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .entry-card{padding:22px}
    .entry-card a{display:inline-flex;margin-top:14px;color:var(--primary);font-weight:950}
    .calendar{
      background:#fff;border:1px solid var(--line);border-radius:30px;box-shadow:var(--shadow-card);overflow:hidden;
    }
    .calendar-head{
      display:flex;align-items:center;justify-content:space-between;gap:14px;
      padding:20px 22px;background:linear-gradient(135deg,#fff7ed,#fff);
      border-bottom:1px solid var(--line);
    }
    .calendar-list{padding:12px}
    .calendar-item{
      display:grid;grid-template-columns:78px 1fr auto;gap:14px;align-items:center;
      padding:14px;border-radius:20px;transition:background .2s ease;
    }
    .calendar-item:hover{background:#fff7ed}
    .datebox{border-radius:18px;background:#21100e;color:#fff;text-align:center;padding:10px 6px;font-weight:950;line-height:1.2}
    .datebox small{display:block;color:rgba(255,255,255,.68);font-size:11px;font-weight:800}
    .status-badge{
      display:inline-flex;align-items:center;border-radius:999px;padding:6px 10px;
      font-size:12px;font-weight:900;background:#f0fdf4;color:#15803d;white-space:nowrap;
    }
    .social-band{
      border-radius:38px;padding:30px;
      background:
        linear-gradient(135deg,rgba(31,157,138,.10),rgba(239,79,60,.08)),
        #fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-card);
    }
    .social-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:24px}
    .social-card{padding:20px;background:rgba(255,255,255,.76);border:1px solid rgba(32,33,38,.08);border-radius:24px}
    .quote{font-size:14px;color:#4f535d;line-height:1.8}
    .quote-author{margin-top:14px;font-weight:950}
    .news-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;margin-top:30px}
    .news-list{background:#fff;border:1px solid var(--line);border-radius:30px;box-shadow:var(--shadow-card);overflow:hidden}
    .news-item{
      display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;
      padding:18px 20px;border-bottom:1px solid var(--line);
      transition:background .2s ease, color .2s ease;
    }
    .news-item:last-child{border-bottom:0}
    .news-item:hover{background:#fff7ed;color:var(--primary)}
    .news-dot{width:10px;height:10px;border-radius:999px;background:var(--primary);box-shadow:0 0 0 6px rgba(239,79,60,.10)}
    .news-date{font-size:12px;color:var(--muted);white-space:nowrap}
    .recommend{
      border-radius:30px;padding:24px;
      background:#21100e;color:#fff;box-shadow:var(--shadow);
      position:relative;overflow:hidden;
    }
    .recommend::after{
      content:"";position:absolute;width:180px;height:180px;border-radius:999px;
      right:-70px;bottom:-70px;background:rgba(255,181,71,.18);
    }
    .mini-ticket{
      position:relative;z-index:1;margin-top:18px;
      border:1px dashed rgba(255,255,255,.24);
      background:rgba(255,255,255,.08);
      border-radius:24px;padding:18px;
    }
    .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:22px;margin-top:30px}
    .faq-list{display:grid;gap:12px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:0 10px 24px rgba(32,33,38,.05)}
    .faq-btn{
      width:100%;border:0;background:transparent;text-align:left;
      padding:18px 20px;display:flex;justify-content:space-between;gap:14px;
      font-weight:950;color:var(--ink);
    }
    .faq-btn span:last-child{color:var(--primary);font-size:20px}
    .faq-answer{padding:0 20px 18px;color:var(--muted);font-size:14px;line-height:1.85}
    .form-shell{
      display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:stretch;
      border-radius:40px;padding:24px;
      background:linear-gradient(135deg,#34110f,#6f2018 56%,#ef4f3c);
      color:#fff;box-shadow:var(--shadow);
      position:relative;overflow:hidden;
    }
    .form-shell::before{
      content:"";position:absolute;left:-80px;bottom:-90px;width:260px;height:260px;border-radius:999px;
      background:rgba(255,255,255,.10);
    }
    .form-copy{position:relative;z-index:1;padding:26px}
    .form-card{position:relative;z-index:1;background:#fff;color:var(--ink);border-radius:30px;padding:22px;box-shadow:0 24px 60px rgba(0,0,0,.16)}
    .field-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .field{display:grid;gap:7px;margin-bottom:12px}
    .field label{font-size:13px;font-weight:900;color:#464a53}
    .field input,.field select,.field textarea{
      width:100%;border:1px solid var(--line);border-radius:16px;padding:12px 13px;background:#fff;color:var(--ink);
      transition:border-color .2s ease, box-shadow .2s ease;
    }
    .field textarea{min-height:112px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(239,79,60,.48);box-shadow:0 0 0 4px rgba(239,79,60,.09);outline:0}
    .fixed-cta{
      position:fixed;left:50%;bottom:18px;z-index:50;transform:translateX(-50%);
      width:min(720px,calc(100% - 28px));
      display:flex;align-items:center;justify-content:space-between;gap:12px;
      padding:10px 12px 10px 18px;border-radius:999px;
      background:rgba(32,33,38,.88);color:#fff;backdrop-filter:blur(16px);
      box-shadow:0 16px 48px rgba(0,0,0,.22);
    }
    .fixed-cta p{margin:0;font-size:14px;color:rgba(255,255,255,.82)}
    .site-footer{
      padding:58px 0 94px;background:#1b1412;color:#fff;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:26px}
    .footer-title{font-weight:950;font-size:18px;margin-bottom:12px}
    .footer-link{display:block;color:rgba(255,255,255,.72);font-size:14px;margin:8px 0;transition:color .2s ease,transform .2s ease}
    .footer-link:hover{color:#fff;transform:translateX(3px)}
    .footer-bottom{margin-top:34px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:rgba(255,255,255,.62);font-size:13px}
    @media (max-width:1024px){
      .nav-wrap{grid-template-columns:1fr;gap:12px;padding:14px 0}
      .brand-mark{justify-content:center}
      .nav-links{justify-content:center}
      .hero-stage,.demo-wrap,.entry-matrix,.news-layout,.faq-grid,.form-shell{grid-template-columns:1fr}
      .feature-grid{grid-template-columns:1fr 1fr}
      .social-grid{grid-template-columns:repeat(2,1fr)}
      .flash-strip{grid-template-columns:1fr;justify-items:start}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px,1180px)}
      .section{padding:58px 0}
      .hero{padding-top:22px}
      .hero-copy,.product-card,.form-shell{border-radius:28px}
      .hero-metrics,.feature-grid,.entry-grid,.social-grid,.field-grid,.footer-grid{grid-template-columns:1fr}
      .calendar-item{grid-template-columns:64px 1fr;align-items:start}
      .calendar-item .status-badge{grid-column:2}
      .news-item{grid-template-columns:auto 1fr}
      .news-date{grid-column:2}
      .fixed-cta{border-radius:24px;align-items:flex-start;flex-direction:column}
      .fixed-cta .btn{width:100%}
    }
    @media (max-width:520px){
      .top-notice{font-size:12px}
      .nav-links{overflow-x:auto;justify-content:flex-start;padding-bottom:2px}
      .nav-link,.nav-cta{white-space:nowrap}
      .search-shell{border-radius:22px;align-items:stretch}
      .search-chip{padding-inline:10px}
      .hero h1{font-size:38px}
      .hero-actions .btn{width:100%}
      .product-visual{min-height:200px}
      .flash-strip{border-radius:22px}
      .countdown{flex-wrap:wrap;justify-content:flex-start}
      .section-title{font-size:30px}
      .form-copy{padding:10px}
    }