:root{
  --brand:#1677ff;
  --bg:#f5f7fa;
  --line:#e5e7eb;
  --text:#1f2937;
  --muted:#6b7280;
}
*{box-sizing:border-box}
body{
  margin:0;background:var(--bg);color:var(--text);
  font:15px/1.7 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
}
.wrap{max-width:1080px;margin:0 auto;padding:32px 20px}
.wrap.narrow{max-width:560px}
h1{font-size:24px;margin:0 0 8px}
h3{font-size:17px;margin:24px 0 8px}
a{color:var(--brand);text-decoration:none}
.tip{color:var(--muted);font-size:13px}
.foot{text-align:center;color:var(--muted);font-size:13px;padding:24px 0 40px}

/* 商品网格：每行列数由 config.php 的 site.columns 决定（默认 4），在首页内联输出 */
/* 这里的 grid-cols 只是兜底值，页面内联样式优先级更高 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-top:20px}
.grid-cols{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}

/* 手机端：保持多列的同时把卡片压缩到放得下，商品介绍仍然显示（超出截断） */
@media (max-width:880px){
  .grid{gap:10px}
  .card{padding:12px 10px}
  .card-desc{font-size:12px;-webkit-line-clamp:4}
}
@media (max-width:520px){
  .wrap{padding:16px 10px}
  .grid{gap:8px;margin-top:12px}
  .card{padding:10px 8px;border-radius:8px;min-width:0}
  .card-cat{font-size:10px;padding:1px 5px;margin-bottom:4px;max-width:100%;overflow:hidden;
    text-overflow:ellipsis;white-space:nowrap}
  .card-title{font-size:13px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;
    -webkit-box-orient:vertical;overflow:hidden;word-break:break-all}
  .card-price{font-size:16px;margin:4px 0}
  /* 手机端保留商品介绍，最多 3 行后省略，避免卡片过高 */
  .card-desc{font-size:11px;line-height:1.45;margin:4px 0;display:-webkit-box;
    -webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;white-space:normal}
  .card-stock{font-size:11px;margin:4px 0 6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
    margin-top:auto}                /* 让库存与按钮贴底，卡片高度才整齐 */
  .card .btn,.card .btn.disabled{padding:6px 2px;font-size:12px;width:100%;border-radius:6px}
  .cat-nav{gap:6px;margin:12px 0 2px}
  .cat-tab{padding:5px 12px;font-size:13px}
  h1{font-size:20px}
}

/* 商品详情页的介绍（buy.php）：完整显示，不截断，手机端也不隐藏 */
.product-desc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;margin:14px 0;
  color:var(--muted);font-size:14px;line-height:1.8;white-space:pre-wrap;word-break:break-word}
.product-desc:empty{display:none}
.product-desc b,.product-desc strong{color:var(--text)}

/* 分类导航 */
.cat-nav{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 4px}
.cat-tab{display:inline-flex;align-items:center;gap:6px;padding:7px 16px;border-radius:20px;
  background:#fff;border:1px solid var(--line);color:var(--text);font-size:14px}
.cat-tab:hover{border-color:var(--brand);color:var(--brand)}
.cat-tab.on{background:var(--brand);border-color:var(--brand);color:#fff}
.cat-num{font-size:12px;opacity:.7}
.cat-tab.on .cat-num{opacity:.85}

/* 商品卡上的分类角标 */
.card{position:relative}
.card-cat{display:inline-block;margin-bottom:6px;padding:2px 8px;border-radius:4px;
  background:#eaf2ff;color:var(--brand);font-size:12px}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;display:flex;flex-direction:column}
.card-title{font-weight:600;font-size:16px}
.card-price{color:#e4393c;font-size:22px;font-weight:600;margin:6px 0}
/* 首页卡片介绍：默认最多 5 行截断（窄屏由媒体查询改成 3~4 行），保证卡片高度整齐 */
.card-desc{color:var(--muted);font-size:13px;flex:1;white-space:pre-wrap;word-break:break-word;
  display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical;overflow:hidden}
.card-stock{font-size:13px;color:var(--muted);margin:8px 0 12px}

.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:8px;
  padding:10px 18px;font-size:15px;cursor:pointer;text-align:center}
.btn:hover{filter:brightness(1.08)}
.btn.small{padding:6px 12px;font-size:13px}
.btn.disabled{background:#c9ced6;cursor:not-allowed}
.btn.ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
.btn.danger{background:#e4393c}

.empty{background:#fff;border:1px dashed var(--line);border-radius:12px;padding:40px;text-align:center;color:var(--muted)}
.alert{background:#fff7e6;border:1px solid #ffd591;color:#ad6800;border-radius:8px;padding:10px 14px;margin:12px 0;font-size:14px}
.ok{background:#f6ffed;border:1px solid #b7eb8f;color:#237804;border-radius:8px;padding:10px 14px;margin:12px 0;font-size:14px}

.form{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;margin-top:16px}
.form label{display:block;margin:14px 0 6px;font-size:14px;color:var(--muted)}
.form input,.form textarea,.form select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:15px}
.form .btn{margin-top:18px;width:100%}
.price-big{font-size:20px;color:#e4393c;font-weight:600}

.pay-box{margin-top:20px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px;text-align:center}
.pay-box .qr img{width:230px;height:230px;image-rendering:pixelated}

table.kv{width:100%;background:#fff;border:1px solid var(--line);border-radius:12px;border-collapse:collapse;margin-top:16px}
table.kv td{padding:10px 14px;border-bottom:1px solid var(--line)}
table.kv td:first-child{width:90px;color:var(--muted)}

ul.cards{list-style:none;padding:0;margin:0}
ul.cards li{background:#f6ffed;border:1px solid #b7eb8f;border-radius:8px;padding:10px 14px;margin:8px 0;
  font-family:ui-monospace,Menlo,Consolas,monospace;word-break:break-all}

.query-box{margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}
.query-box form{display:flex;gap:8px}
.query-box input{flex:1;padding:10px 12px;border:1px solid var(--line);border-radius:8px}

/* 后台 */
.admin-head{background:#fff;border-bottom:1px solid var(--line)}
.admin-head .inner{max-width:1180px;margin:0 auto;padding:12px 20px;display:flex;gap:18px;align-items:center}
.admin-head a{color:var(--text);font-size:15px;padding:6px 10px;border-radius:6px}
.admin-head a:hover{background:var(--bg)}
.admin-head a.on{color:var(--brand);background:#eaf2ff}
.admin-head .spacer{flex:1}
table.grid-table{width:100%;background:#fff;border:1px solid var(--line);border-radius:12px;border-collapse:collapse;font-size:14px}
table.grid-table th,table.grid-table td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}
table.grid-table th{background:#fafafa;color:var(--muted);font-weight:600}
table.grid-table td.mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px}
.tag{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px;background:#f0f0f0;color:#555}
.tag.ok{background:#f6ffed;color:#237804}
.tag.warn{background:#fff7e6;color:#ad6800}
.tag.bad{background:#fff1f0;color:#cf1322}
.stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px;margin:20px 0}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}
.stat .n{font-size:22px;font-weight:600}
.stat .t{color:var(--muted);font-size:13px}
.toolbar{display:flex;gap:10px;align-items:center;margin:16px 0;flex-wrap:wrap}

/* 支付等待提示 */
#poll-tip{font-size:13px;color:var(--muted);margin:6px 0 10px}
.dots::after{content:'';animation:dots 1.2s steps(4,end) infinite}
@keyframes dots{0%{content:''}25%{content:'.'}50%{content:'..'}75%{content:'...'}}
#force-btn{cursor:pointer}

/* ---------- 网页公告：页面顶部的渐变公告卡（大字标题） ---------- */
.nbcard{border-radius:16px;padding:16px 18px 18px;margin-bottom:16px;color:#fff;
  box-shadow:0 8px 24px rgba(0,0,0,.14);overflow:hidden}

/* 头部：头像 + 大字标题 + 徽章/标签 */
.nbc-head{display:flex;gap:12px;align-items:center}
.nbc-avatar{flex:none;width:52px;height:52px;border-radius:50%;object-fit:cover;
  border:2px solid rgba(255,255,255,.6);background:rgba(255,255,255,.2)}
.nbc-meta{min-width:0;flex:1}
.nbc-title{font-size:21px;font-weight:700;line-height:1.3;letter-spacing:.3px;
  text-shadow:0 2px 8px rgba(0,0,0,.18);word-break:break-word}
.nbc-sub{display:flex;flex-wrap:wrap;gap:6px;margin-top:7px}
.nbc-badge,.nbc-tag,.nbc-count{display:inline-block;font-size:11.5px;line-height:1;
  padding:4px 8px;border-radius:20px;background:rgba(255,255,255,.22);
  border:1px solid rgba(255,255,255,.35);white-space:nowrap}
.nbc-badge{background:#fff;color:#1a4bff;font-weight:700;border-color:#fff}

/* 正文 */
.nbc-body{margin-top:12px;font-size:13.5px;line-height:1.75;white-space:normal;
  word-break:break-word;opacity:.97}

/* 底部横排两个按钮 */
.nbc-btns{display:flex;gap:10px;margin-top:14px}
.nbc-btn{flex:1;text-align:center;padding:10px 6px;border-radius:10px;font-size:14px;
  font-weight:600;background:#fff;color:#1a4bff;text-decoration:none;transition:filter .15s}
.nbc-btn:hover{filter:brightness(.96)}
.nbc-btn:active{filter:brightness(.92)}

/* 配色 */
.nbcard.theme-blue{background:linear-gradient(135deg,#4b7bff 0%,#6a5cff 55%,#8b4bff 100%)}
.nbcard.theme-orange{background:linear-gradient(135deg,#ff8a3d 0%,#ff6a3d 55%,#f5453d 100%)}
.nbcard.theme-green{background:linear-gradient(135deg,#25c2a8 0%,#12a8a0 55%,#0b8f7a 100%)}
.nbcard.theme-dark{background:linear-gradient(135deg,#4a5568 0%,#2d3748 55%,#1a202c 100%)}
.nbcard.theme-blue .nbc-btn{color:#4b52ff}
.nbcard.theme-orange .nbc-btn{color:#f5453d}
.nbcard.theme-green .nbc-btn{color:#0b8f7a}
.nbcard.theme-dark .nbc-btn{color:#1a202c}
.nbcard.theme-blue .nbc-badge{color:#4b52ff}
.nbcard.theme-orange .nbc-badge{color:#f5453d}
.nbcard.theme-green .nbc-badge{color:#0b8f7a}
.nbcard.theme-dark .nbc-badge{color:#1a202c}

@media (max-width:520px){
  .nbcard{padding:14px 14px 16px;border-radius:14px}
  .nbc-avatar{width:46px;height:46px}
  .nbc-title{font-size:19px}
  .nbc-body{font-size:13px;margin-top:10px}
  .nbc-btns{gap:8px;margin-top:12px}
  .nbc-btn{padding:10px 4px;font-size:13.5px}
}

/* ---------- 订单查询（已移到页面顶部） ---------- */
.query-box-top{margin:0 0 16px}

/* ---------- 弹窗公告（简洁白底） ---------- */
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:999;
  display:flex;align-items:center;justify-content:center;padding:20px}
.modal-box{background:#fff;border-radius:14px;width:100%;max-width:460px;max-height:82vh;
  display:flex;flex-direction:column;overflow:hidden;box-shadow:0 12px 40px rgba(0,0,0,.2)}
.modal-head{padding:16px 20px 12px;font-size:17px;font-weight:600;text-align:center;
  border-bottom:1px solid var(--line)}
.modal-body{padding:14px 20px;overflow-y:auto;font-size:14px;line-height:1.8;color:var(--text);
  -webkit-overflow-scrolling:touch;white-space:normal;flex:1;word-break:break-word}
.modal-btns{display:flex;gap:12px;padding:12px 20px 18px;border-top:1px solid var(--line);flex:none}
.modal-btn{flex:1;padding:11px 8px;border-radius:8px;font-size:15px;cursor:pointer;
  border:1px solid var(--line);background:#fff;color:var(--text)}
.modal-btn:active{filter:brightness(.95)}
.modal-btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}

@media (max-width:520px){
  .modal-mask{padding:14px;align-items:flex-end}
  .modal-box{max-width:100%}
  .modal-head{padding:14px 16px 10px;font-size:16px}
  .modal-body{padding:12px 16px;font-size:13.5px;line-height:1.75}
  .modal-btns{gap:10px;padding:10px 16px 16px}
  .modal-btn{padding:11px 6px;font-size:14px}
}

/* ---------- 后台公告预览 ---------- */
.notice-preview{max-width:460px;margin-top:8px}
.notice-preview .nbcard{margin-bottom:0}
.notice-preview .modal-mask{position:static;background:#f2f4f8;padding:16px;display:block}
.notice-preview .modal-box{max-height:none;max-width:100%;box-shadow:0 4px 14px rgba(0,0,0,.10)}
.notice-preview .modal-body{max-height:260px}

/* ---------- 卡密区：复制按钮 + 温馨提示 ---------- */
.cards li{display:flex;align-items:center;gap:10px;justify-content:space-between}
.cd-text{flex:1;min-width:0;word-break:break-all;font-family:ui-monospace,Menlo,Consolas,monospace}
.copy-one{flex:none;padding:4px 10px !important;font-size:12px !important;border-radius:6px}
.cards-actions{margin:12px 0 4px}
.cards-actions .btn{width:100%}

/* 温馨提示 */
.card-tip{background:#fff7e6;border:1px solid #ffd591;color:#8a5300;border-radius:10px;
  padding:12px 14px;margin-top:12px;font-size:13.5px;line-height:1.7}
.card-tip b{display:block;margin-bottom:4px;color:#ad4e00;font-size:14px}

@media (max-width:520px){
  .cards li{flex-wrap:wrap;gap:6px}
  .cd-text{flex:1 1 100%;font-size:13px}
  .copy-one{width:100%;padding:7px 10px !important;font-size:13px !important}
  .card-tip{padding:11px 12px;font-size:13px}
}