/* roulang page: index */
:root{
      --bg:#fff7fb;
      --bg-2:#f8f3ff;
      --surface:#ffffff;
      --surface-2:#fff0f6;
      --text:#17131f;
      --muted:#6b6077;
      --soft:#9a8ba8;
      --primary:#7c3aed;
      --primary-2:#be185d;
      --accent:#fb7185;
      --success:#10b981;
      --warning:#f59e0b;
      --border:rgba(60,31,81,.13);
      --border-strong:rgba(124,58,237,.26);
      --shadow:0 20px 60px rgba(49,20,72,.12);
      --shadow-soft:0 12px 34px rgba(49,20,72,.08);
      --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;
      font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 0%, rgba(251,113,133,.22), transparent 34%),
        radial-gradient(circle at 86% 8%, rgba(124,58,237,.18), transparent 28%),
        linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%);
      min-height:100vh;
      line-height:1.7;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(190,24,93,.4);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,247,251,.88);
      border-bottom:1px solid var(--border);
      backdrop-filter:blur(18px);
    }
    .nav-wrap{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:11px;font-size:18px;font-weight:850;letter-spacing:0}
    .brand-mark{
      width:38px;height:38px;display:grid;place-items:center;border-radius:13px;
      color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 8px 18px rgba(124,58,237,.25);
      font-size:15px;font-weight:900;
    }
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-link{padding:10px 15px;border-radius:10px;color:var(--muted);font-size:14px;font-weight:700;transition:.2s ease}
    .nav-link:hover,.nav-link.active{color:var(--primary);background:rgba(124,58,237,.08)}
    .nav-action{
      display:inline-flex;align-items:center;gap:8px;padding:11px 17px;border-radius:11px;
      color:#fff;background:var(--text);font-size:13px;font-weight:800;transition:.2s ease;
    }
    .nav-action:hover{background:var(--primary);transform:translateY(-1px)}
    .menu-toggle{display:none;border:1px solid var(--border);background:#fff;border-radius:10px;padding:9px;color:var(--text)}
    .hero{padding:86px 0 70px}
    .hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);gap:64px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--primary-2);font-size:12px;font-weight:850;letter-spacing:.08em;text-transform:uppercase}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--accent);border-radius:2px}
    h1,h2,h3,p{margin-top:0}
    h1{max-width:720px;margin-bottom:24px;font-size:clamp(42px,5vw,72px);line-height:1.08;letter-spacing:-.03em;font-weight:900}
    .hero-copy{max-width:630px;margin-bottom:28px;color:var(--muted);font-size:18px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:25px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 21px;border:1px solid transparent;border-radius:12px;font-size:14px;font-weight:850;transition:.2s ease}
    .btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 11px 24px rgba(124,58,237,.2)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(124,58,237,.28)}
    .btn-secondary{color:var(--text);background:#fff;border-color:var(--border)}
    .btn-secondary:hover{border-color:var(--border-strong);color:var(--primary);background:var(--bg-2)}
    .trust-row{display:flex;flex-wrap:wrap;gap:18px;color:var(--soft);font-size:12px;font-weight:700}
    .trust-item{display:inline-flex;align-items:center;gap:7px}
    .trust-dot{width:8px;height:8px;border-radius:50%;background:var(--success)}
    .hero-panel{
      position:relative;overflow:hidden;padding:28px;border:1px solid rgba(255,255,255,.6);
      border-radius:var(--radius-xl);background:var(--night);color:#fff;box-shadow:var(--shadow);
    }
    .hero-panel:after{content:"";position:absolute;right:-90px;top:-90px;width:240px;height:240px;border:1px solid rgba(251,113,133,.4);border-radius:50%}
    .panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:34px}
    .panel-label{color:#c9b9d5;font-size:12px;font-weight:800}
    .status{display:inline-flex;align-items:center;gap:7px;padding:7px 10px;border:1px solid rgba(255,255,255,.12);border-radius:99px;color:#d8f8e9;background:rgba(16,185,129,.13);font-size:11px;font-weight:800}
    .status i{width:7px;height:7px;border-radius:50%;background:#34d399}
    .panel-title{max-width:330px;margin-bottom:25px;font-size:28px;line-height:1.2;font-weight:850}
    .panel-list{display:grid;gap:12px;margin:0 0 28px;padding:0;list-style:none}
    .panel-list li{display:flex;align-items:flex-start;gap:10px;color:#e8deee;font-size:13px}
    .panel-list li:before{content:"✓";flex:0 0 20px;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;color:#fff;background:rgba(251,113,133,.8);font-size:11px;font-weight:900}
    .panel-bottom{display:flex;align-items:end;justify-content:space-between;border-top:1px solid rgba(255,255,255,.12);padding-top:18px}
    .metric strong{display:block;font-size:25px;line-height:1;font-weight:900}
    .metric span{display:block;margin-top:7px;color:#b9a9c4;font-size:11px}
    .section{padding:82px 0}
    .section-head{max-width:690px;margin-bottom:36px}
    .section-kicker{margin-bottom:10px;color:var(--primary-2);font-size:12px;font-weight:900;letter-spacing:.08em}
    h2{margin-bottom:13px;font-size:clamp(30px,4vw,46px);line-height:1.15;letter-spacing:-.025em;font-weight:900}
    .section-intro{margin-bottom:0;color:var(--muted);font-size:16px}
    .benefits{background:rgba(255,255,255,.58);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
    .benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .benefit-card{padding:26px;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-soft);transition:.2s ease}
    .benefit-card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--shadow)}
    .icon-box{width:42px;height:42px;display:grid;place-items:center;margin-bottom:20px;border-radius:12px;color:var(--primary);background:var(--surface-2);font-size:20px}
    h3{margin-bottom:9px;font-size:19px;line-height:1.35;font-weight:850}
    .benefit-card p{margin-bottom:0;color:var(--muted);font-size:14px}
    .comparison-layout{display:grid;grid-template-columns:.74fr 1.26fr;gap:50px;align-items:start}
    .comparison-note{padding:25px;border-left:3px solid var(--accent);background:rgba(255,255,255,.62);color:var(--muted);font-size:14px}
    .price-table{overflow:hidden;border:1px solid var(--border);border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow-soft)}
    .price-row{display:grid;grid-template-columns:1.1fr .9fr .9fr;align-items:center;gap:12px;padding:18px 22px;border-bottom:1px solid var(--border);font-size:14px}
    .price-row:last-child{border-bottom:0}
    .price-row.header{padding-top:20px;padding-bottom:20px;color:#fff;background:var(--night);font-weight:850}
    .price-row:not(.header):hover{background:var(--bg)}
    .check{color:var(--success);font-size:18px;font-weight:900}
    .limited{display:inline-flex;align-items:center;width:max-content;padding:4px 8px;border-radius:7px;color:var(--primary-2);background:#ffe4ef;font-size:11px;font-weight:850}
    .numbers{margin-top:24px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .number-box{padding:19px;border-radius:var(--radius-md);background:var(--bg-2);border:1px solid var(--border)}
    .number-box strong{display:block;font-size:27px;line-height:1.1;font-weight:900;color:var(--primary)}
    .number-box span{display:block;margin-top:6px;color:var(--muted);font-size:12px}
    .news-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:24px}
    .news-list,.recommend-box{border:1px solid var(--border);border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow-soft)}
    .news-list{padding:8px 24px}
    .news-item{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:21px 0;border-bottom:1px solid var(--border)}
    .news-item:last-child{border-bottom:0}
    .news-item a{font-size:15px;font-weight:800;transition:.2s ease}
    .news-item a:hover{color:var(--primary)}
    .news-item time{flex:0 0 auto;color:var(--soft);font-size:12px}
    .recommend-box{padding:25px;background:var(--night);color:#fff}
    .recommend-box h3{color:#fff}
    .recommend-box p{color:#c7b8d2;font-size:14px}
    .tag-list{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 24px}
    .tag{padding:7px 10px;border:1px solid rgba(255,255,255,.15);border-radius:8px;color:#eadff0;background:rgba(255,255,255,.06);font-size:12px;font-weight:700}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
    .step{position:relative;padding:29px 25px;border-right:1px solid var(--border)}
    .step:last-child{border-right:0}
    .step-num{display:inline-grid;place-items:center;width:30px;height:30px;margin-bottom:18px;border-radius:9px;color:#fff;background:var(--primary);font-size:13px;font-weight:900}
    .step p{margin-bottom:0;color:var(--muted);font-size:13px}
    .entry-section{background:var(--night);color:#fff}
    .entry-layout{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}
    .entry-section .section-kicker{color:#fda4af}
    .entry-section .section-intro{color:#c9bbd2}
    .entry-points{display:grid;gap:12px;margin-top:25px}
    .entry-point{display:flex;align-items:center;gap:12px;color:#e8deee;font-size:14px}
    .entry-point span{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;color:#fff;background:var(--primary-2);font-size:12px;font-weight:900}
    .entry-form{padding:28px;border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-lg);background:rgba(255,255,255,.07)}
    .entry-form label{display:block;margin-bottom:8px;color:#e8deee;font-size:13px;font-weight:800}
    .entry-form input{width:100%;height:48px;margin-bottom:14px;padding:0 14px;border:1px solid rgba(255,255,255,.17);border-radius:10px;outline:0;color:#fff;background:rgba(255,255,255,.08)}
    .entry-form input::placeholder{color:#aa9cb6}
    .entry-form input:focus{border-color:#fda4af;box-shadow:0 0 0 3px rgba(253,164,175,.15)}
    .form-note{margin:15px 0 0;color:#a99aB5;font-size:11px}
    .faq-list{max-width:850px;display:grid;gap:12px}
    .faq-item{border:1px solid var(--border);border-radius:var(--radius-md);background:#fff}
    .faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 22px;cursor:pointer;list-style:none;font-size:15px;font-weight:850}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";color:var(--primary);font-size:22px;font-weight:400}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 22px 21px;color:var(--muted);font-size:14px}
    .cta{padding:40px 0}
    .cta-box{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:36px 42px;border-radius:var(--radius-xl);background:linear-gradient(115deg,#fce7f3,#ede9fe);border:1px solid var(--border-strong)}
    .cta-box h2{margin-bottom:7px;font-size:30px}
    .cta-box p{margin-bottom:0;color:var(--muted);font-size:14px}
    footer{padding:40px 0 28px;border-top:1px solid var(--border);background:#fff}
    .footer-main{display:flex;justify-content:space-between;gap:30px;padding-bottom:30px}
    .footer-brand{max-width:330px}
    .footer-brand p{margin:14px 0 0;color:var(--muted);font-size:13px}
    .footer-meta{display:flex;align-items:flex-start;gap:42px}
    .footer-group strong{display:block;margin-bottom:10px;font-size:13px}
    .footer-group span{display:block;color:var(--muted);font-size:12px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid var(--border);color:var(--soft);font-size:11px}
    @media(max-width:1024px){
      .hero-grid{gap:35px}
      .comparison-layout{gap:25px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .nav-wrap{min-height:68px}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:74px;padding:10px;border:1px solid var(--border);border-radius:14px;background:#fff;box-shadow:var(--shadow-soft)}
      .nav-links.open{display:grid}
      .nav-action{display:none}
      .hero{padding:58px 0 45px}
      .hero-grid,.comparison-layout,.news-layout,.entry-layout{grid-template-columns:1fr}
      h1{font-size:46px}
      .hero-copy{font-size:16px}
      .section{padding:62px 0}
      .benefit-grid{grid-template-columns:1fr 1fr}
      .steps{grid-template-columns:1fr 1fr}
      .step:nth-child(2){border-right:0}
      .step:nth-child(-n+2){border-bottom:1px solid var(--border)}
      .step:nth-child(3){border-right:1px solid var(--border)}
      .cta-box{align-items:flex-start;flex-direction:column;padding:30px}
      .footer-main{flex-direction:column}
    }
    @media(max-width:520px){
      .container{width:min(var(--container),calc(100% - 24px))}
      h1{font-size:38px}
      h2{font-size:31px}
      .hero-panel{padding:22px}
      .benefit-grid,.numbers,.steps{grid-template-columns:1fr}
      .step,.step:nth-child(3){border-right:0;border-bottom:1px solid var(--border)}
      .step:last-child{border-bottom:0}
      .price-row{grid-template-columns:1.05fr .8fr .8fr;padding:16px 14px;font-size:12px}
      .news-list{padding:5px 16px}
      .news-item{align-items:flex-start;flex-direction:column;gap:5px}
      .hero-actions .btn{width:100%}
      .footer-meta{flex-direction:column;gap:20px}
      .footer-bottom{align-items:flex-start;flex-direction:column}
    }