:root{--fg:#17202a;--muted:#5b6b7b;--accent:#1456d6;--accent-soft:#eaf1fd;--border:#e3e8ee;--bg:#ffffff;--bg-soft:#f7f9fb}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Segoe UI,sans-serif;color:var(--fg);background:var(--bg);line-height:1.7}.container{max-width:960px;margin:0 auto;padding:0 20px}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.muted{color:var(--muted)}.site-header{border-bottom:1px solid var(--border);background:var(--bg)}.site-header-inner{display:flex;align-items:center;justify-content:space-between;height:56px}.site-header .brand{font-weight:700;font-size:18px;color:var(--fg)}.site-header nav a{margin-left:20px;color:var(--fg)}.site-footer{margin-top:64px;padding:24px 0;border-top:1px solid var(--border);color:var(--muted);font-size:14px}.hero{padding:64px 0 40px;text-align:center}.hero h1{font-size:40px;margin:0 0 12px}.hero>p{color:var(--muted);font-size:18px;margin:0 0 28px}[data-slot=cta-group]{display:flex;gap:16px;justify-content:center}[data-cta]{display:inline-block;padding:12px 28px;border-radius:8px;font-weight:600}[data-cta=b2c]{background:var(--accent);color:#fff}[data-cta=b2b]{background:var(--accent-soft);color:var(--accent)}[data-cta]:hover{text-decoration:none;opacity:.92}.card-grid,[data-slot=plan-grid]{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));grid-gap:16px;gap:16px;margin:20px 0 40px}.card,[data-slot=plan-card]{border:1px solid var(--border);border-radius:12px;padding:20px;background:var(--bg)}[data-slot=plan-card][data-highlighted]{border-color:var(--accent);box-shadow:0 4px 16px rgb(20 86 214/12%)}.card h3,[data-slot=plan-card] h2{margin-top:0}[data-slot=price]{font-size:20px;font-weight:700;color:var(--accent)}[data-slot=plan-cta]{display:inline-block;margin-top:8px;padding:8px 20px;border-radius:6px;background:var(--accent);color:#fff}.why{background:var(--bg-soft);border-radius:12px;padding:24px 28px;margin-bottom:40px}.blog-list ul,.post-list{list-style:none;padding:0}.blog-list li,.post{border-bottom:1px solid var(--border);padding:16px 0}.prose{max-width:760px}.prose h2{margin-top:40px;border-bottom:1px solid var(--border);padding-bottom:6px}.prose table{border-collapse:collapse;width:100%;margin:16px 0;font-size:15px}.compare table td,.compare table th,.prose td,.prose th{border:1px solid var(--border);padding:8px 12px;text-align:left}.compare table th,.prose th{background:var(--bg-soft)}.prose pre{background:#0f1722;color:#dbe7f3;padding:16px;border-radius:8px;overflow-x:auto}.prose code{background:var(--bg-soft);padding:2px 6px;border-radius:4px;font-size:.92em}.prose pre code{background:none;padding:0}.prose blockquote{border-left:3px solid var(--accent);margin:16px 0;padding:4px 16px;color:var(--muted)}.compare table{border-collapse:collapse;width:100%;margin:16px 0}.lead-form{display:grid;grid-gap:12px;gap:12px;max-width:480px;margin-top:20px}.lead-form input,.lead-form textarea{padding:10px 12px;border:1px solid var(--border);border-radius:6px;font-size:15px;font-family:inherit}.lead-form [type=submit],.lead-form button{padding:12px;border:none;border-radius:6px;background:var(--accent);color:#fff;font-weight:600;cursor:pointer}.author-card{display:flex;gap:12px;align-items:center;border:1px solid var(--border);border-radius:10px;padding:14px 18px;margin:32px 0;background:var(--bg-soft)}.faq details{border-bottom:1px solid var(--border);padding:10px 0}.faq summary{font-weight:600;cursor:pointer}