/* ============ 618红包口令网 · 手机版专属样式 ============ */
:root{
  --jd:#e1251b; --jd-dark:#c81623; --gold:#ffd666; --bg:#f4f5f7;
  --card:#ffffff; --ink:#222; --muted:#888; --line:#ececec;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);font-size:16px;line-height:1.72;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.container{width:100%;max-width:640px;margin:0 auto;padding:0 14px}

/* ---- 顶部品牌条（吸顶） ---- */
.m-top{
  position:sticky;top:0;z-index:60;display:flex;align-items:center;justify-content:space-between;
  background:linear-gradient(135deg,#e1251b,#c81623);padding:9px 14px;color:#fff;
  box-shadow:0 2px 10px rgba(200,22,35,.18);
}
.m-brand{display:flex;align-items:center;gap:8px;color:#fff;font-size:17px;font-weight:800}
.m-brand .logo{
  width:26px;height:26px;border-radius:7px;background:#fff;color:var(--jd-dark);
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:15px;
}
.m-brand small{display:none}
.m-menu-btn{
  background:rgba(255,255,255,.18);border:none;color:#fff;font-size:20px;line-height:1;
  padding:7px 13px;border-radius:9px;cursor:pointer;
}

/* ---- 移动导航（抽屉） ---- */
.m-nav{display:none;flex-direction:column;background:#fff;border-bottom:1px solid var(--line)}
.m-nav.open{display:flex}
.m-nav a{padding:13px 16px;font-size:15px;color:#333;border-bottom:1px solid #f4f4f4}
.m-nav a:active{background:#fafafa}
.m-nav a.active{color:var(--jd-dark);font-weight:800;background:#fff5f4}

/* ---- 红包口令卡片（转化核心） ---- */
.m-hero{padding:14px}
.m-code-card{
  background:linear-gradient(135deg,#e1251b,#ff6a3d);border-radius:18px;padding:18px 16px;
  color:#fff;text-align:center;box-shadow:0 10px 26px rgba(225,37,27,.28);
}
.m-code-label{font-size:13px;opacity:.92}
.m-code{
  font-size:30px;font-weight:900;letter-spacing:2px;margin:9px 0;
  background:rgba(255,255,255,.16);border-radius:12px;padding:9px;cursor:pointer;
}
.m-code-tip{font-size:13px;opacity:.95;line-height:1.5}
.m-code-valid{font-size:12px;opacity:.85;margin-top:7px}
.m-copy{
  margin-top:13px;width:100%;border:none;background:var(--gold);color:#8a2b00;
  font-size:16px;font-weight:800;padding:14px;border-radius:13px;cursor:pointer;
}

/* ---- 通用区块 ---- */
section{padding:14px 0}
.page-hero{background:linear-gradient(135deg,#fff,#fff6f3);padding:18px 14px}
.page-hero h1{font-size:22px;color:var(--jd-dark);line-height:1.35}
.page-hero .desc{color:#666;font-size:14px;margin-top:7px}
.crumb{color:#999;font-size:12px;margin-bottom:8px}
.eyebrow{font-size:12px;color:#ff8a65;font-weight:800;letter-spacing:1px}
.section-head{display:flex;align-items:baseline;gap:10px;margin:4px 0 12px}
.section-head h2{font-size:18px;color:#222}

/* ---- 卡片网格 -> 强制单列 ---- */
.grid,.grid-2,.grid-3,.grid-4,.fest-grid{display:grid;grid-template-columns:1fr!important;gap:12px}
.card{
  background:var(--card);border-radius:14px;padding:14px;border:1px solid var(--line);
  box-shadow:0 2px 8px rgba(0,0,0,.04);display:block;
}
.card h3{font-size:16px;margin:4px 0;line-height:1.4}
.card p{font-size:13px;color:#777;margin-top:5px}
.card .cat{font-size:12px;color:var(--jd-dark);font-weight:800}
.card .meta{font-size:12px;color:#aaa}

/* ---- 两栏布局 -> 单列 ---- */
.layout{display:grid;grid-template-columns:1fr!important;gap:14px}
.side{order:2}
.article{background:#fff;border-radius:14px;padding:16px;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.article h1{font-size:21px;color:var(--jd-dark);line-height:1.4;margin-bottom:6px}
.article h2{font-size:18px;margin:20px 0 8px;color:#222}
.article h3{font-size:16px;margin:15px 0 6px;color:#222}
.article p{margin:11px 0;font-size:15px}
.article ul,.article ol{padding-left:20px;margin:11px 0}
.article li{margin:7px 0;font-size:15px}
.article .lead,.article .muted,.article .desc{color:#777;font-size:14px}
.article strong,.article b{color:#c81623;font-weight:800}
.article .item{display:flex;flex-direction:column;gap:4px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;margin:10px 0}
.article .item .price{color:var(--jd-dark);font-weight:800;white-space:nowrap}

/* ---- 侧栏 ---- */
.side .card{margin-bottom:12px}
.side h2,.side h5{font-size:15px;margin-bottom:8px;color:#222}
.side h3{font-size:15px;margin-bottom:8px}

/* ---- CTA / 互动块 ---- */
.cta,.interaction-box{
  background:linear-gradient(135deg,#fff0ec,#ffe2e2);border-left:4px solid var(--jd);
  border-radius:10px;padding:14px;margin:14px 0;
}
.cta h3,.interaction-box h3{font-size:16px;color:var(--jd-dark);margin-bottom:6px}

/* ---- 免责声明块 ---- */
.disclaimer{
  background:#fff8f3;border:1px solid #ffe0cf;border-radius:10px;padding:12px;
  font-size:13px;color:#8a6d5a;margin:14px 0;line-height:1.65;
}

/* ---- 首页 hero（桌面型） ---- */
.hero{background:linear-gradient(135deg,#e1251b,#c81623);color:#fff;padding:24px 14px}
.hero .eyebrow{color:#ffe0a3}
.hero h1{font-size:24px;line-height:1.35}
.hero p{opacity:.95;margin-top:9px;font-size:14px}

/* ---- 官网页脚 ---- */
.m-foot{background:#2b2b2b;color:#bbb;padding:18px 14px;font-size:12px;text-align:center;margin-top:22px;line-height:1.7}
.m-foot p{margin-bottom:10px}
.m-pc{display:inline-block;background:#444;color:#fff;padding:10px 20px;border-radius:22px;font-size:13px}

/* ---- 站点地图列表 ---- */
.sitemap-list a{display:block;padding:11px 12px;border-bottom:1px solid #f0f0f0;font-size:14px;color:#333}