:root{--bg: #f4f2ec;--ink: #1a1a1a;--muted: #5c6a5e;--brand: #09432c;--brand-deep: #006041;--accent: #f7deb1;--card: #fff;--line: #e4e0d4;--price: #c62828;--header-h: 64px}*{box-sizing:border-box}html{scroll-behavior:smooth}html,body{margin:0;padding:0}body{font-family:Source Han Sans SC,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65}a{color:var(--brand-deep);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:1120px;margin:0 auto;padding:0 20px}.site-header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.site-header .wrap{display:flex;align-items:center;justify-content:space-between;min-height:var(--header-h);gap:16px}.logo{font-weight:700;font-size:20px;color:var(--brand);white-space:nowrap}.logo span{color:var(--muted);font-weight:400;font-size:12px;margin-left:8px}nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:4px 14px}nav 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