:root{--primary: #2768f8;--primary-dark: #1e56d8;--accent: #25b886;--text: #333333;--text-light: #666666;--bg-light: #f5f7fb;--border: #e6e9f0}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px}body{font-family:Microsoft Yahei,Hiragino Sans GB,Heiti SC,WenQuanYi Micro Hei,Helvetica Neue,Helvetica,Arial,sans-serif;color:var(--text);background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}.site-header{background:#fff;border-bottom:1px solid var(--border)}.nav-box{display:flex;align-items:center;justify-content:space-between;height:72px}.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--primary);white-space:nowrap}.logo img{height:36px;width:auto}.nav-bar{display:flex;list-style:none;align-items:center}.nav-bar li a{display:block;padding:0 14px;line-height:72px;font-size:15px;font-weight:700;color:var(--text)}.nav-bar li a:hover,.nav-bar li a.active{color:#fff;background:var(--primary)}.nav-bar .nav-app a{color:var(--accent)}.nav-toggle{display:none;background:none;border:none;font-size:26px;color:var(--primary);cursor:pointer}.hero{background:linear-gradient(135deg,#2768f8,#4b8bff 60%,#25b886 130%);color:#fff;padding:64px 0}.hero h1{font-size:34px;line-height:1.4;margin-bottom:18px}.hero .hero-sub{font-size:17px;opacity:.92;max-width:720px;margin-bottom:26px}.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;margin-bottom:30px}.hero-points span{font-size:15px;background:#ffffff29;border:1px solid rgba(255,255,255,.35);border-radius:20px;padding:5px 16px}.hero-points span:before{content:"✓ ";font-weight:700}.hero-subline{margin-top:22px;font-size:13px;opacity:.85}.stats-bar{background:#fff;box-shadow:0 8px 24px #2768f814;border-radius:14px;margin-top:-34px;position:relative;z-index:5;display:grid;grid-template-columns:repeat(4,1fr);padding:26px 10px}.stat{text-align:center;padding:0 8px}.stat b{display:block;font-size:26px;color:var(--primary);line-height:1.3}.stat span{font-size:13px;color:var(--text-light)}.stat+.stat{border-left:1px solid var(--border)}.adv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;list-style:none}.adv-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:26px 22px;transition:box-shadow .15s ease,transform .15s ease}.adv-card:hover{box-shadow:0 8px 22px #2768f824;transform:translateY(-3px)}.adv-card:before{content:attr(data-num);display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--primary),#4b8bff);color:#fff;font-weight:700;margin-bottom:14px}.adv-card h3{font-size:17px;margin-bottom:8px}.adv-card p{font-size:14px;color:var(--text-light)}.related-card .go{display:inline-block;margin-top:12px;color:var(--primary);font-weight:700;font-size:14px}.final-cta{background:linear-gradient(135deg,#2768f8,#4b8bff);border-radius:16px;color:#fff;text-align:center;padding:46px 24px}.final-cta h2{font-size:26px;margin-bottom:10px}.final-cta p{opacity:.9;margin-bottom:24px}body.modal-open{overflow:hidden}.lead-modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:20px}.lead-modal.open{display:flex}.lead-mask{position:absolute;inset:0;background:#0f172a8c}.lead-dialog{position:relative;width:100%;max-width:420px;background:#fff;border-radius:14px;padding:34px 28px 26px;box-shadow:0 20px 60px #0f172a4d;animation:lead-pop .18s ease}@keyframes lead-pop{0%{opacity:0;transform:translateY(14px) 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