:root{--bg:#f8f9fa;--white:#fff;--text:#1a1a2e;--text2:#495057;--accent:#2b8a3e;--accent2:#227030;--border:#dee2e6;--light:#e9ecef}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,"Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.8;font-size:16px}.container{max-width:1000px;margin:0 auto;padding:0 20px}.hero{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;padding:48px 0 40px}.hero h1{font-size:32px;margin-bottom:14px;line-height:1.4}.hero .sub{font-size:16px;opacity:.95;line-height:1.9}.badge{display:inline-block;background:rgba(255,255,255,.22);padding:5px 14px;border-radius:20px;font-size:13px;margin:6px 6px 0 0}.section{background:var(--white);border-radius:10px;padding:28px;margin:20px 0;min-width:0;overflow-x:hidden;min-width:0;overflow-x:hidden;box-shadow:0 1px 3px rgba(0,0,0,.06)}.section h2{font-size:22px;color:var(--accent2);margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--light)}.section h3{font-size:18px;margin:22px 0 10px;color:var(--text)}.section p{margin:12px 0;color:var(--text2)}.section ul,.section ol{margin:12px 0 12px 24px;color:var(--text2)}.section li{margin:8px 0}.specs-table{width:100%;border-collapse:collapse;margin:16px 0;font-size:15px}.specs-table th{background:var(--light);padding:11px;text-align:left;font-weight:600;border:1px solid var(--border)}.specs-table td{padding:11px;border:1px solid var(--border);color:var(--text2)}.highlight{background:#f0f7f2;border-left:4px solid var(--accent);padding:14px 18px;margin:16px 0;border-radius:0 6px 6px 0}.contact-box{background:var(--light);padding:20px;border-radius:8px;margin:20px 0}.fig{margin:20px 0;text-align:center}.fig img{max-width:100%;height:auto;border-radius:8px;border:1px solid var(--border)}.fig figcaption{font-size:13px;color:#6c757d;margin-top:8px}.faq-item{border-bottom:1px solid var(--border);padding:16px 0}.faq-item:last-child{border-bottom:none}.faq-q{font-weight:600;color:var(--text);margin-bottom:8px}.faq-a{color:var(--text2)}.nav-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin:16px 0}.nav-card{border:1px solid var(--border);border-radius:8px;padding:14px;background:#fbfcfb}.nav-card a{font-weight:600;text-decoration:none}.nav-card p{font-size:13px;margin:6px 0 0;color:#6c757d}footer{background:var(--text);color:#adb5bd;padding:30px 0;margin-top:30px;font-size:14px;text-align:center}a{color:var(--accent)}.note{font-size:13px;color:#6c757d}