/* System fonts only: no web fonts, no third-party CDNs (China-friendly). */
:root{--ink:#1d1d1f;--muted:#6b6b70;--bg:#faf8f5;--card:#fff;--accent:#b4572e;--line:#e7e2db;--ali:#1677ff;--wx:#07c160}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif}
a{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
.top{position:sticky;top:0;z-index:5;background:rgba(250,248,245,.96);border-bottom:1px solid var(--line);padding:10px 16px;display:flex;flex-wrap:wrap;gap:6px 16px;align-items:center;justify-content:space-between}
.brand{font-weight:700;color:var(--ink);text-decoration:none}
.top nav{display:flex;gap:14px;font-size:15px;flex-wrap:wrap}
.top nav a{color:var(--ink);text-decoration:none}
.top nav a.lang{border:1px solid var(--line);border-radius:14px;padding:0 10px}
main{max-width:1040px;margin:0 auto;padding:16px}
.hero{padding:20px 0 8px}
.hero h1{font-size:26px;line-height:1.3;margin:0 0 8px}
.notice{background:#fff4e5;border:1px solid #f3d3a6;border-radius:8px;padding:8px 12px;font-size:14px}
.paybar{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.pay{border-radius:6px;padding:4px 10px;font-size:14px;color:#fff}
.pay em{font-style:normal;opacity:.85;font-size:12px;margin-left:4px}
.pay.alipay{background:var(--ali)}
.pay.wechat{background:var(--wx);opacity:.6}
.cat h2,.checkout-info h2{font-size:21px;margin:28px 0 4px}
.intro{color:var(--muted);margin:0 0 12px}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media(min-width:720px){.grid{grid-template-columns:repeat(3,1fr)}}
.card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;color:var(--ink);text-decoration:none;display:flex;flex-direction:column}
.card h3{font-size:15px;margin:8px 10px 2px}
.card p{font-size:13px;color:var(--muted);margin:0 10px 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.badge{display:inline-block;background:#fde68a;color:#7a4b00;font-size:12px;border-radius:4px;padding:1px 6px}
.card .badge{position:absolute;top:8px;left:8px}
.price{font-weight:700;color:var(--accent);margin:auto 10px 10px}
.price.big{font-size:24px;margin:6px 0}
.approx{font-weight:400;font-size:.8em;color:var(--muted)}
.product{display:grid;gap:16px}
@media(min-width:720px){.product{grid-template-columns:1fr 1fr}.product .back{grid-column:1/-1}}
.product img{border-radius:10px;border:1px solid var(--line);max-height:70vh;width:auto;margin:0 auto}
.product h1{font-size:22px;margin:6px 0}
.buy{width:100%;font-size:18px;padding:14px;border:0;border-radius:10px;background:var(--accent);color:#fff;font-weight:700;cursor:pointer}
.buy:disabled{opacity:.6}
.buy-msg{margin-top:10px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px 12px}
.checkout-info{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:4px 16px 12px;margin-top:24px}
.methods{padding-left:18px}
.legal{max-width:720px}
.legal h1{font-size:24px}
.legal h2{font-size:18px;margin-top:22px}
.contact-big{font-size:20px;word-break:break-all}
.small{font-size:13px;color:var(--muted)}
.foot{border-top:1px solid var(--line);margin-top:32px;padding:16px;text-align:center;font-size:14px}
.foot nav{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.foot .paybar{justify-content:center}