:root{--green:#10b981;--deep:#047857;--ink:#0f172a;--mut:#64748b;--line:#eef2f7}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#f8fafc;line-height:1.7}
a{text-decoration:none;color:inherit}
/* 导航 */
.site-nav{position:sticky;top:0;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:9}
.nav-inner{max-width:1080px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:14px 20px;gap:10px}
.brand{display:flex;align-items:center;gap:8px;font-size:19px}
.brand .logo{font-size:24px}
.links{display:flex;align-items:center;gap:18px;font-size:14.5px;color:#334155;flex-wrap:wrap}
.links a:hover{color:var(--green)}
.links .btn-demo,.btn-primary{background:linear-gradient(135deg,#10b981,#059669);color:#fff;padding:9px 16px;border-radius:999px;font-weight:600}
.links .btn-demo:hover{opacity:.92;color:#fff}
/* hero */
.hero{text-align:center;padding:88px 20px 72px;background:radial-gradient(1200px 500px at 50% -10%,#d1fae5,transparent),linear-gradient(180deg,#ffffff,#f0fdf4)}
.hero-badge{display:inline-block;background:#d1fae5;color:#047857;border-radius:999px;padding:6px 14px;font-size:13px;font-weight:700;margin-bottom:18px}
.hero h1{font-size:52px;line-height:1.18;letter-spacing:1px;background:linear-gradient(135deg,#065f46,#10b981);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{max-width:680px;margin:18px auto;color:var(--mut);font-size:16.5px}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:26px}
.btn-primary{font-size:16px;padding:13px 26px}
.btn-ghost{border:1.5px solid var(--green);color:var(--deep);padding:12px 22px;border-radius:999px;font-weight:600}
.hero-note{font-size:12.5px;color:#94a3b8;margin-top:22px}
/* features */
.features{padding:64px 20px;max-width:1080px;margin:0 auto}
.features h2{text-align:center;font-size:28px;margin-bottom:36px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 6px 18px rgba(15,23,42,.05)}
.card .ic{font-size:30px;margin-bottom:10px}
.card h3{font-size:17px;margin-bottom:8px}
.card p{color:var(--mut);font-size:14px}
/* doc pages */
.doc{max-width:820px;margin:0 auto;padding:44px 20px 70px}
.doc h1{font-size:30px;margin-bottom:6px}
.doc h2{font-size:20px;margin:28px 0 10px;color:#065f46}
.doc p,.doc li{color:#334155;font-size:15px;margin-bottom:8px}
.doc ul{padding-left:22px}
.doc .meta{color:#94a3b8;font-size:13px}
.warn{background:#fffbeb;border-left:4px solid #f59e0b;padding:12px 16px;border-radius:10px;font-size:14px;color:#92400e;margin:14px 0 6px}
/* footer */
.site-foot{border-top:1px solid var(--line);padding:30px 20px;text-align:center;background:#fff}
.foot-links{display:flex;gap:12px;justify-content:center;font-size:14px;color:#334155;margin-bottom:10px}
.foot-links a:hover{color:var(--green)}
.disclaimer{color:var(--mut);font-size:12.5px;margin-bottom:6px}
.copy{color:#94a3b8;font-size:12px}
.beian{margin-top:8px;font-size:12px}
.beian a{color:#94a3b8;text-decoration:none}
.beian a:hover{color:var(--green);text-decoration:underline}
@media(max-width:600px){.hero h1{font-size:38px}.nav-inner{flex-wrap:wrap}.doc h1{font-size:24px}}

/* 完整条款页面表格/引用 */
.doc table{width:100%;border-collapse:collapse;margin:14px 0;font-size:14px}
.doc th,.doc td{border:1px solid #e2e8f0;padding:8px 10px;text-align:left;vertical-align:top}
.doc th{background:#f0fdf4;color:#065f46}
.doc blockquote{background:#f8fafc;border-left:4px solid #10b981;padding:10px 14px;border-radius:8px;color:#475569;margin:10px 0}
.doc .cb{color:#94a3b8;margin-right:4px}
.doc code{background:#f1f5f9;border-radius:6px;padding:1px 6px;font-size:13px}

.btn-demo.off,.btn-primary.off{opacity:.65;cursor:default}