:root{
  --primary:#1769ff;
  --primary-dark:#0d45b7;
  --accent:#10b981;
  --text:#172033;
  --muted:#667085;
  --line:#e6ebf2;
  --bg:#f6f8fc;
  --white:#ffffff;
  --shadow:0 18px 45px rgba(23,32,51,.10);
  --radius:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.75}
a{color:inherit;text-decoration:none}
.container{width:min(1180px,92vw);margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-wrap{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--text)}
.brand-mark{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--primary),#5dd5ff);color:#fff;font-weight:900;box-shadow:0 10px 25px rgba(23,105,255,.25)}
.brand-text{font-size:20px;letter-spacing:.5px}.footer-brand{margin-bottom:12px}.site-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.site-nav a{padding:9px 14px;border-radius:999px;color:#38435a;font-size:15px}.site-nav a:hover,.site-nav a.active{background:#edf4ff;color:var(--primary);font-weight:700}
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 10% 10%,#e5f0ff 0,#fff 34%,#f8fbff 100%);padding:86px 0 74px}.hero:before{content:"";position:absolute;right:-160px;top:30px;width:420px;height:420px;border-radius:50%;background:rgba(23,105,255,.10)}.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}.eyebrow{margin:0 0 10px;color:var(--primary);font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:14px}.hero h1,.page-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.12;margin:0 0 22px;letter-spacing:-.04em}.hero-desc,.page-hero p{font-size:18px;color:#4d5b73;margin:0 0 28px;max-width:780px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:999px;padding:13px 24px;font-weight:800;cursor:pointer;transition:.2s ease}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 12px 24px rgba(23,105,255,.25)}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}.btn-secondary{background:#fff;color:var(--primary);border:1px solid #cfe0ff}.btn-secondary:hover{background:#edf4ff}.btn-light{background:#fff;color:var(--primary)}.trust-list{list-style:none;padding:0;margin:24px 0 0;display:flex;gap:14px;flex-wrap:wrap;color:#45516a}.trust-list li{padding:8px 12px;background:#fff;border:1px solid var(--line);border-radius:999px}.trust-list li:before{content:"✓";color:var(--accent);font-weight:900;margin-right:6px}
.hero-panel{background:rgba(255,255,255,.9);border:1px solid #e3ebf8;border-radius:28px;padding:20px;box-shadow:var(--shadow)}.panel-top{display:flex;gap:8px;margin-bottom:18px}.panel-top span{width:12px;height:12px;border-radius:50%;background:#d5deea}.panel-top span:nth-child(1){background:#ff6b6b}.panel-top span:nth-child(2){background:#ffd166}.panel-top span:nth-child(3){background:#06d6a0}.dashboard-card{background:#f7faff;border:1px solid #e3ebf8;border-radius:18px;padding:18px}.dashboard-card.large{margin-bottom:14px}.dashboard-card strong{font-size:18px}.dashboard-card p{margin:6px 0 0;color:#5d6a80}.dashboard-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.progress{height:10px;background:#e7eefb;border-radius:999px;overflow:hidden;margin-top:14px}.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:999px}.message-demo{margin-top:14px;background:#111827;color:#eef2ff;border-radius:18px;padding:16px}.message-demo p{margin:4px 0;color:#eef2ff}
.section{padding:76px 0}.section-muted{background:var(--bg)}.section-heading{text-align:center;max-width:760px;margin:0 auto 38px}.section-heading h2,.split h2,.product-row h2,.cta h2{font-size:clamp(26px,3.4vw,40px);line-height:1.22;margin:0 0 14px;letter-spacing:-.03em}.section-heading p,.split p,.product-row p,.feature-card p,.steps p,.info-box p{color:var(--muted);margin-top:0}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 10px 30px rgba(17,24,39,.04)}.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);transition:.2s ease}.feature-card h3{margin:12px 0 10px;font-size:22px}.feature-card a{color:var(--primary);font-weight:800}.icon{width:48px;height:48px;border-radius:16px;background:#edf4ff;color:var(--primary);display:grid;place-items:center;font-weight:900}.split{display:grid;grid-template-columns:1fr .85fr;gap:42px;align-items:start}.info-box,.mock-card,.contact-card,.contact-form,.service-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:24px}.check-list span{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px}.check-list span:before{content:"✓";color:var(--accent);font-weight:900;margin-right:8px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.steps div{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}.steps b{display:inline-block;color:var(--primary);font-size:22px;margin-bottom:8px}.steps h3{margin:0 0 8px}.cta{background:linear-gradient(135deg,#145cf2,#10b981);color:#fff;padding:62px 0}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}.cta p{color:rgba(255,255,255,.86);margin:0}.cta .eyebrow{color:#dff7ff}
.trial-policy{background:linear-gradient(180deg,#fff 0%,#f7fbff 100%)}.trial-card{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;background:#eef6ff;border:1px solid #ddecff;border-radius:28px;padding:48px;box-shadow:0 18px 42px rgba(23,105,255,.10)}.trial-points{display:grid;gap:24px}.trial-point{display:grid;grid-template-columns:48px 1fr;gap:18px;align-items:start}.trial-icon{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:#fff;color:var(--primary);font-size:27px;font-weight:900;box-shadow:0 10px 24px rgba(23,105,255,.10)}.trial-point h3{margin:0 0 6px;font-size:22px}.trial-point p{margin:0;color:#475569}.trial-action{background:#fff;border:1px solid #e6edf8;border-radius:20px;padding:34px;text-align:center;box-shadow:0 14px 32px rgba(15,23,42,.10)}.trial-gift{width:64px;height:64px;margin:0 auto 18px;border-radius:50%;display:grid;place-items:center;background:#dbeafe;color:var(--primary);font-weight:900;font-size:26px}.trial-action h3{margin:0 0 12px;font-size:24px}.trial-action p{margin:0 auto 24px;color:#475569;max-width:360px}
.page-hero{background:linear-gradient(135deg,#edf4ff,#f9fbff);padding:72px 0;border-bottom:1px solid var(--line)}.product-row{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.product-row.reverse{direction:rtl}.product-row.reverse>*{direction:ltr}.bullets{padding-left:20px;color:#536178}.bullets li{margin:8px 0}.mock-card p{border-bottom:1px solid var(--line);padding-bottom:10px}.mock-chat{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow)}.mock-chat div{max-width:82%;background:#f1f5fb;border-radius:18px;padding:14px;margin:12px 0}.mock-chat .right{margin-left:auto;background:#eaf3ff}.mock-chat p{margin:4px 0 0}.chart-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow)}.chart-card span{display:block;background:linear-gradient(90deg,var(--primary),#69d8ff);color:#fff;border-radius:999px;margin:14px 0;padding:8px 14px;font-weight:700;min-width:140px}.info-table p{display:grid;grid-template-columns:180px 1fr;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);margin:0}.info-table strong{color:#2b3448}.info-table span{color:var(--muted)}.faq{max-width:900px}.faq details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 22px;margin:14px 0}.faq summary{font-weight:800;cursor:pointer}.legal{max-width:900px}.legal h2{margin-top:24px}.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px}.contact-form label{display:block;font-weight:800;margin-bottom:14px}.contact-form input,.contact-form textarea{display:block;width:100%;margin-top:6px;border:1px solid #d8e0eb;border-radius:12px;padding:12px 14px;font:inherit;color:var(--text);outline:none}.contact-form input:focus,.contact-form textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(23,105,255,.10)}.form-note{font-size:13px;color:var(--muted)}
.site-footer{background:#0f172a;color:#d6deec;padding:46px 0 20px}.site-footer a{display:block;color:#d6deec;margin:6px 0}.site-footer p{color:#aeb8ca}.footer-grid{display:grid;grid-template-columns:1.4fr .7fr 1fr;gap:32px;padding-bottom:28px}.site-footer .brand-text{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;display:flex;gap:18px;justify-content:space-between;flex-wrap:wrap;color:#aeb8ca;font-size:14px}.footer-bottom a{display:inline;color:#d6deec}
@media (max-width:900px){.nav-wrap{height:auto;padding:14px 0;align-items:flex-start;flex-direction:column}.hero-grid,.split,.product-row,.contact-grid,.trial-card{grid-template-columns:1fr}.feature-grid,.steps,.footer-grid{grid-template-columns:1fr}.dashboard-row,.check-list{grid-template-columns:1fr}.cta-inner{align-items:flex-start;flex-direction:column}.info-table p{grid-template-columns:1fr}.hero{padding-top:54px}.section{padding:54px 0}.trial-card{padding:28px}.trial-action{text-align:left}.trial-gift{margin-left:0}.site-nav a{padding:7px 10px}.product-row.reverse{direction:ltr}}