/* roulang page: index */
:root{
      --color-primary:#f43f7f;
      --color-primary-dark:#be185d;
      --color-secondary:#7c3aed;
      --color-accent:#22c55e;
      --color-bg:#fff7fb;
      --color-bg-soft:#fffafd;
      --color-text:#1f1722;
      --color-muted:#6f6375;
      --color-border:rgba(126,58,117,.15);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --shadow-soft:0 18px 60px rgba(131,24,67,.12);
      --shadow-card:0 14px 34px rgba(31,23,34,.08);
      --shadow-hover:0 22px 48px rgba(244,63,127,.16);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--color-text);
      background:
        radial-gradient(circle at 8% 4%, rgba(244,63,127,.18), transparent 32%),
        radial-gradient(circle at 88% 12%, rgba(124,58,237,.18), transparent 30%),
        linear-gradient(180deg,#fff7fb 0%,#fff 45%,#fff7fb 100%);
      font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;
      line-height:1.7;
      min-height:100vh;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(244,63,127,.18)}
    .site-container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .glass{
      background:rgba(255,255,255,.74);
      border:1px solid rgba(255,255,255,.82);
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(18px);
    }
    .section{padding:88px 0}
    .section-tight{padding:62px 0}
    .section-title{letter-spacing:-.03em}
    .gradient-text{
      background:linear-gradient(120deg,var(--color-primary),var(--color-secondary));
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.44rem .78rem;
      border-radius:999px;
      font-size:.82rem;
      font-weight:800;
      color:#9f1239;
      background:rgba(255,255,255,.76);
      border:1px solid rgba(244,63,127,.18);
      box-shadow:0 10px 26px rgba(244,63,127,.08);
      white-space:nowrap;
    }
    .badge-dot{width:8px;height:8px;border-radius:99px;background:var(--color-accent);box-shadow:0 0 0 5px rgba(34,197,94,.14)}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.55rem;
      min-height:48px;
      padding:.78rem 1.18rem;
      border-radius:999px;
      font-weight:900;
      letter-spacing:.01em;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
      outline:none;
      border:1px solid transparent;
      user-select:none;
    }
    .btn:focus-visible,.nav-link:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(244,63,127,.25);
      outline-offset:3px;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));
      box-shadow:0 16px 34px rgba(244,63,127,.24);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 42px rgba(244,63,127,.32)}
    .btn-ghost{
      color:#831843;
      background:rgba(255,255,255,.76);
      border-color:rgba(244,63,127,.18);
    }
    .btn-ghost:hover{transform:translateY(-2px);background:#fff;border-color:rgba(244,63,127,.35);box-shadow:var(--shadow-card)}
    .btn-dark{
      color:#fff;
      background:#231126;
      box-shadow:0 16px 30px rgba(35,17,38,.18);
    }
    .btn-dark:hover{transform:translateY(-2px);background:#3b173d}
    .card{
      background:rgba(255,255,255,.82);
      border:1px solid var(--color-border);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-card);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(244,63,127,.28)}
    .header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,247,251,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(244,63,127,.12);
    }
    .nav-wrap{
      height:74px;
      display:grid;
      grid-template-columns:1fr auto 1.25fr;
      align-items:center;
      gap:24px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:11px;
      font-weight:950;
      letter-spacing:-.04em;
      color:#251126;
      width:max-content;
    }
    .brand-mark{
      width:40px;height:40px;border-radius:15px;
      display:grid;place-items:center;
      color:#fff;font-weight:950;
      background:linear-gradient(135deg,#f43f7f,#7c3aed);
      box-shadow:0 12px 26px rgba(244,63,127,.25);
    }
    .brand-name{font-size:1.04rem}
    .nav-center{display:flex;align-items:center;justify-content:center;gap:8px}
    .nav-link{
      padding:.58rem .9rem;
      border-radius:999px;
      color:#5f5064;
      font-size:.93rem;
      font-weight:850;
      transition:background .2s ease,color .2s ease;
    }
    .nav-link:hover,.nav-link.active{background:#fff;color:#be185d;box-shadow:0 10px 22px rgba(244,63,127,.08)}
    .nav-actions{display:flex;align-items:center;justify-content:flex-end;gap:12px}
    .search-box{
      display:flex;align-items:center;gap:8px;
      width:min(270px,100%);
      background:#fff;
      border:1px solid rgba(244,63,127,.16);
      border-radius:999px;
      padding:8px 13px;
      box-shadow:0 12px 26px rgba(31,23,34,.05);
    }
    .search-box input{border:0;outline:0;min-width:0;width:100%;background:transparent;color:#332535;font-size:.9rem}
    .search-box span{color:#be185d}
    .mobile-toggle{
      display:none;
      width:44px;height:44px;border-radius:14px;
      border:1px solid rgba(244,63,127,.16);
      background:#fff;color:#831843;
      align-items:center;justify-content:center;
    }
    .hero{
      position:relative;
      padding:52px 0 72px;
    }
    .hero-shell{
      position:relative;
      overflow:hidden;
      min-height:560px;
      border-radius:36px;
      background:
        linear-gradient(115deg,rgba(35,17,38,.94) 0%,rgba(98,26,82,.92) 46%,rgba(255,255,255,.88) 46.1%,rgba(255,255,255,.92) 100%);
      border:1px solid rgba(255,255,255,.62);
      box-shadow:0 30px 90px rgba(131,24,67,.20);
    }
    .hero-shell:before{
      content:"";
      position:absolute;inset:-80px auto auto 38%;
      width:360px;height:360px;border-radius:999px;
      background:radial-gradient(circle,rgba(244,63,127,.42),transparent 67%);
      filter:blur(4px);
    }
    .hero-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.02fr .98fr;
      min-height:560px;
    }
    .hero-copy{padding:70px 58px;color:#fff;display:flex;flex-direction:column;justify-content:center}
    .hero-copy p{color:rgba(255,255,255,.78)}
    .hero-visual{padding:48px;display:flex;align-items:center;justify-content:center}
    .deal-panel{
      width:100%;
      max-width:510px;
      border-radius:32px;
      background:rgba(255,255,255,.88);
      border:1px solid rgba(255,255,255,.74);
      box-shadow:0 28px 80px rgba(35,17,38,.16);
      overflow:hidden;
    }
    .deal-top{
      background:linear-gradient(135deg,#fff,#fff0f6);
      padding:22px;
      border-bottom:1px solid rgba(244,63,127,.14);
    }
    .progress{
      height:12px;border-radius:999px;background:#f7dce8;overflow:hidden;
    }
    .progress span{
      display:block;height:100%;width:78%;
      background:linear-gradient(90deg,#f43f7f,#7c3aed);
      border-radius:999px;
    }
    .avatar-stack{display:flex}
    .avatar{
      width:34px;height:34px;border-radius:999px;
      display:grid;place-items:center;
      margin-left:-8px;
      border:2px solid #fff;
      color:#fff;font-size:.78rem;font-weight:900;
      background:linear-gradient(135deg,#f43f7f,#7c3aed);
    }
    .avatar:first-child{margin-left:0}
    .metric-card{
      border-radius:22px;
      padding:18px;
      background:rgba(255,255,255,.82);
      border:1px solid rgba(244,63,127,.12);
      box-shadow:0 12px 26px rgba(31,23,34,.06);
    }
    .story-panel{
      border-radius:32px;
      background:linear-gradient(135deg,#fff,#fff3f8);
      border:1px solid rgba(244,63,127,.12);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .story-line{
      display:grid;
      grid-template-columns:180px 1fr;
      gap:18px;
      padding:18px 0;
      border-bottom:1px dashed rgba(244,63,127,.16);
    }
    .story-line:last-child{border-bottom:0}
    .content-card .corner{
      position:absolute;top:16px;right:16px;
      padding:.3rem .58rem;border-radius:999px;
      background:#fff1f7;color:#be185d;
      font-size:.76rem;font-weight:900;
      border:1px solid rgba(244,63,127,.15);
    }
    .bubble{
      position:relative;
      border-radius:26px;
      padding:22px;
      background:#fff;
      border:1px solid rgba(244,63,127,.13);
      box-shadow:var(--shadow-card);
    }
    .bubble:after{
      content:"";
      position:absolute;left:28px;bottom:-10px;
      width:20px;height:20px;
      background:#fff;
      border-right:1px solid rgba(244,63,127,.13);
      border-bottom:1px solid rgba(244,63,127,.13);
      transform:rotate(45deg);
    }
    .news-list a{
      display:grid;
      grid-template-columns:112px 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px 0;
      border-bottom:1px solid rgba(244,63,127,.12);
      transition:color .2s ease,transform .2s ease;
    }
    .news-list a:hover{color:#be185d;transform:translateX(4px)}
    .news-list a:last-child{border-bottom:0}
    .faq-item{
      border:1px solid rgba(244,63,127,.14);
      background:#fff;
      border-radius:22px;
      overflow:hidden;
      box-shadow:0 12px 28px rgba(31,23,34,.05);
    }
    .faq-q{
      width:100%;
      padding:20px 22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      text-align:left;
      font-weight:950;
      color:#261827;
      background:#fff;
      border:0;
    }
    .faq-a{
      display:none;
      padding:0 22px 22px;
      color:#6f6375;
    }
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-icon{transform:rotate(45deg)}
    .faq-icon{transition:transform .2s ease;color:#be185d;font-size:1.25rem}
    .form-input{
      width:100%;
      border:1px solid rgba(244,63,127,.16);
      background:#fff;
      border-radius:16px;
      padding:14px 15px;
      color:#2b1d2e;
      outline:none;
      transition:border-color .2s ease,box-shadow .2s ease;
    }
    .form-input:focus{
      border-color:rgba(244,63,127,.55);
      box-shadow:0 0 0 4px rgba(244,63,127,.12);
    }
    .footer{
      padding:52px 0 32px;
      background:#201020;
      color:rgba(255,255,255,.78);
    }
    .footer a:hover{color:#fff}
    .fixed-cta{
      position:fixed;
      left:50%;
      bottom:18px;
      transform:translateX(-50%);
      z-index:40;
      width:min(620px,calc(100% - 28px));
      border-radius:999px;
      background:rgba(35,17,38,.88);
      backdrop-filter:blur(18px);
      border:1px solid rgba(255,255,255,.12);
      box-shadow:0 18px 44px rgba(35,17,38,.22);
      color:#fff;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:10px 12px 10px 18px;
    }
    @media (max-width:1024px){
      .nav-wrap{grid-template-columns:1fr auto;gap:14px}
      .nav-center{display:none}
      .mobile-toggle{display:flex}
      .nav-actions{grid-column:1 / -1;justify-content:space-between;display:none;padding-bottom:14px}
      .header.menu-open .nav-actions{display:flex}
      .header.menu-open .nav-center{display:flex;grid-column:1 / -1;justify-content:flex-start;overflow-x:auto;padding-bottom:8px}
      .hero-shell{background:linear-gradient(180deg,rgba(35,17,38,.96),rgba(98,26,82,.92) 48%,rgba(255,255,255,.96) 48.2%,#fff)}
      .hero-grid{grid-template-columns:1fr}
      .hero-copy{padding:56px 36px 38px}
      .hero-visual{padding:16px 28px 40px}
      .story-line{grid-template-columns:1fr}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px,var(--container))}
      .section{padding:66px 0}
      .section-tight{padding:48px 0}
      .hero{padding-top:28px}
      .hero-shell{border-radius:28px}
      .hero-copy{padding:44px 24px 30px}
      .hero-visual{padding:10px 18px 28px}
      .deal-panel{border-radius:24px}
      .news-list a{grid-template-columns:1fr;gap:6px}
      .fixed-cta{display:none}
    }
    @media (max-width:520px){
      .brand-name{font-size:.92rem}
      .brand-mark{width:36px;height:36px;border-radius:13px}
      .nav-wrap{height:auto;min-height:66px;padding:10px 0}
      .search-box{width:100%}
      .nav-actions{flex-direction:column;align-items:stretch}
      .hero-copy h1{font-size:2.45rem;line-height:1.05}
      .btn{width:100%}
      .hero-copy .hero-buttons{flex-direction:column}
      .deal-top{padding:18px}
    }