:root{--bg:#f6f7f3;--card:#fff;--text:#1f2d22;--muted:#657169;--brand:#2f7d4a;--line:#e3e8df;--shadow:0 14px 35px rgba(37,54,42,.08)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(1180px,92vw);margin:auto}.topbar{background:#183420;color:#e9f5ea;font-size:14px}.topbar .container{display:flex;justify-content:space-between;gap:16px;padding:8px 0;flex-wrap:wrap}.header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.header-inner{display:flex;align-items:center;justify-content:space-between;padding:18px 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