/* ============================================================
   潜龙八字 · 计费界面样式（billing.css）★ 261104
   —— 充值 / 积分明细 / 打赏

   约定
   ---------------------------------------------------------------
   · 全部用**皮肤令牌**（--surface/--ink/--line/--brand/--gold…），
     ⇒ 9 套皮肤自动适配，⛔ 不写死颜色字面量。
   · 选择器全部作用域在 .bill-sheet / .bill-mask 内，
     ⛔ 不外泄到产品版面（与 css/dev.css 同一纪律）。
   · 弹层挂 body 且 position:fixed（与 auth/pref/skin 同构）：
     祖先一旦带 transform 就会把它关进去（本仓 260930-4 返工教训）。
   ============================================================ */

.bill-mask {
  position: fixed; inset: 0; z-index: 160;
  background: rgba(12, 10, 8, .46);
  opacity: 0; pointer-events: none; transition: opacity .18s ease;
}
.bill-mask.show { opacity: 1; pointer-events: auto; }

.bill-sheet {
  position: fixed; z-index: 170;
  left: 50%; top: 50%; transform: translate(-50%, -50%) scale(.98);
  width: min(560px, calc(100vw - 24px));
  max-height: min(84vh, 760px);
  display: none; flex-direction: column;
  background: var(--surface, #fff);
  color: var(--ink, #222);
  border: 1px solid var(--line, #ddd);
  border-radius: var(--r-lg, 12px);
  box-shadow: var(--shadow-lg, 0 18px 48px rgba(0, 0, 0, .18));
  overflow: hidden;
}
.bill-sheet.show { display: flex; transform: translate(-50%, -50%) scale(1); }

.bill-head {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px; border-bottom: 1px solid var(--line-thin, var(--line, #eee));
  background: var(--surface-2, transparent);
}
.bill-kicker {
  font-size: 11px; letter-spacing: .16em; color: var(--brand, #8a2b1f);
  border: 1px solid var(--brand-soft, #e4c9c3); border-radius: 3px; padding: 1px 6px;
}
.bill-title { flex: 1; font-size: 15px; font-weight: 600; font-family: var(--font-serif, serif); }
.bill-x {
  border: 0; background: none; cursor: pointer; font-size: 20px; line-height: 1;
  color: var(--ink-3, #888); padding: 2px 6px; border-radius: 4px;
}
.bill-x:hover { background: var(--surface-3, rgba(0, 0, 0, .05)); }

.bill-body { padding: 14px 16px 18px; overflow: auto; }

.bill-sec { margin-bottom: 16px; }
.bill-sec-h {
  font-size: 12px; font-weight: 600; color: var(--ink-2, #555);
  letter-spacing: .06em; margin-bottom: 8px;
}
.bill-note { font-size: 12px; line-height: 1.7; color: var(--ink-3, #777); margin-top: 8px; }
.bill-loading, .bill-err { font-size: 13px; color: var(--ink-3, #777); padding: 10px 0; }
.bill-err { color: var(--danger, #c0392b); }

.bill-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.bill-grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 560px) {
  .bill-grid, .bill-grid--4 { grid-template-columns: repeat(2, 1fr); }
}

.bill-sku {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 12px 6px; cursor: pointer;
  background: var(--surface-2, #faf8f4);
  border: 1px solid var(--line, #ddd); border-radius: var(--r-md, 8px);
  color: inherit; font: inherit; position: relative;
  transition: border-color .15s, box-shadow .15s, transform .08s;
}
.bill-sku:hover { border-color: var(--brand-soft, #d9b9b2); }
.bill-sku:active { transform: translateY(1px); }
.bill-sku.is-on {
  border-color: var(--brand, #8a2b1f);
  box-shadow: 0 0 0 2px var(--brand-glow, rgba(138, 43, 31, .16)) inset;
}
.bill-sku.is-hot::after {
  content: "推荐"; position: absolute; top: -1px; right: -1px;
  font-size: 10px; padding: 1px 5px; color: #fff;
  background: var(--brand, #8a2b1f); border-radius: 0 var(--r-md, 8px) 0 6px;
}
.bill-sku.is-off { opacity: .45; cursor: not-allowed; }
.bill-sku-p { font-size: 20px; font-weight: 600; font-variant-numeric: tabular-nums; }
.bill-sku-n { font-size: 13px; font-weight: 600; }
.bill-sku-k { font-size: 11px; color: var(--ink-3, #888); }
.bill-sku-y { font-size: 12px; color: var(--brand, #8a2b1f); font-variant-numeric: tabular-nums; }
.bill-sku-b { font-size: 11px; color: var(--gold-text, #8a6d1f); }

.bill-chs { display: flex; flex-wrap: wrap; gap: 8px; }
.bill-ch {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  font-size: 13px; padding: 6px 10px;
  border: 1px solid var(--line, #ddd); border-radius: var(--r-pill, 999px);
  background: var(--surface-2, #faf8f4);
}
.bill-ch input { accent-color: var(--brand, #8a2b1f); }

.bill-lab { display: block; margin: 10px 0 0; }
.bill-lab > span { display: block; font-size: 12px; color: var(--ink-2, #555); margin-bottom: 4px; }
.bill-lab input {
  width: 100%; box-sizing: border-box; padding: 8px 10px; font: inherit; font-size: 13px;
  color: var(--ink, #222); background: var(--bg-card, #fff);
  border: 1px solid var(--line, #ddd); border-radius: var(--r-sm, 6px);
}
.bill-lab input:focus { outline: 2px solid var(--brand-glow, rgba(138, 43, 31, .2)); outline-offset: 1px; }

.bill-act { margin: 14px 0 4px; }
.bill-btn {
  width: 100%; padding: 11px 14px; cursor: pointer;
  font: inherit; font-size: 14px; font-weight: 600; color: #fff;
  background: var(--brand, #8a2b1f); border: 1px solid var(--brand-deep, #6f2218);
  border-radius: var(--r-md, 8px);
}
.bill-btn:disabled { opacity: .45; cursor: not-allowed; }
.bill-btn:not(:disabled):hover { background: var(--brand-deep, #6f2218); }

.bill-bal {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 14px 0 10px;
}
.bill-bal-n { font-size: 30px; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--brand, #8a2b1f); }
.bill-bal-k { font-size: 12px; color: var(--ink-3, #888); }

/* ── 扫码打赏（261104-2）───────────────────────────────────────────
   两个固定图片位：/img/tip/wxpay.png、/img/tip/alipay.png。
   图片没上传时 `.bill-sec-qr-img` 加载失败由 JS 打上 is-miss ⇒ 显示占位框。
   ⛔ 尺寸写死方形容器：码图必须是正方形，否则扫码识别率下降。 */
.bill-sec-qr { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.bill-sec-qr-item { margin: 0; text-align: center; }
.bill-sec-qr-box {
  position: relative; aspect-ratio: 1 / 1; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface-2, #faf8f4);
  border: 1px solid var(--line, #ddd); border-radius: var(--r-md, 8px);
}
.bill-sec-qr-img { width: 100%; height: 100%; object-fit: contain; display: block; }
.bill-sec-qr-img.is-miss { display: none; }
.bill-sec-qr-ph {
  position: absolute; inset: 0; display: none;
  flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  padding: 8px; text-align: center; color: var(--ink-3, #888);
  border: 1px dashed var(--line, #ddd); border-radius: var(--r-md, 8px);
}
.bill-sec-qr-img.is-miss + .bill-sec-qr-ph { display: flex; }
.bill-sec-qr-ph b { font-size: 13px; font-weight: 600; color: var(--ink-2, #555); }
.bill-sec-qr-ph em { font-size: 11px; font-style: normal; }
.bill-sec-qr-item figcaption { margin-top: 6px; font-size: 12px; color: var(--ink-2, #555); }
@media (max-width: 400px) {
  .bill-sec-qr { grid-template-columns: 1fr; }
}

.bill-orders { max-height: 220px; overflow: auto; }
.bill-tbl { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.bill-tbl th, .bill-tbl td {
  padding: 6px 8px; text-align: left;
  border-bottom: 1px solid var(--line-thin, var(--line, #eee));
  white-space: nowrap;
}
.bill-tbl th { font-weight: 600; color: var(--ink-2, #555); font-size: 11.5px; }
.bill-mono { font-variant-numeric: tabular-nums; letter-spacing: .02em; color: var(--ink-3, #777); }
.bill-plus { color: var(--ok, #2f7a48); font-variant-numeric: tabular-nums; }
.bill-minus { color: var(--danger, #c0392b); font-variant-numeric: tabular-nums; }

.bill-tag { font-size: 11px; padding: 1px 6px; border-radius: 3px; border: 1px solid transparent; }
.bill-tag.ok { color: var(--ok, #2f7a48); border-color: var(--ok, #2f7a48); }
.bill-tag.warn { color: var(--warn, #a8681a); border-color: var(--warn, #a8681a); }
.bill-tag.mut { color: var(--ink-3, #888); border-color: var(--line, #ddd); }

/* 手机端：底部抽屉式（与 auth-sheet 同族的观感） */
@media (max-width: 640px) {
  .bill-sheet {
    left: 0; right: 0; bottom: 0; top: auto;
    width: auto; max-height: 88vh;
    transform: translateY(12px);
    border-radius: var(--r-lg, 12px) var(--r-lg, 12px) 0 0;
  }
  .bill-sheet.show { transform: translateY(0); }
}