/* GPT 代充系统 · 主题（按设计稿：浅色默认 + 暗色切换，居中卡片流，细网格背景） */
:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --card2: #f7f9fd;
  --line: #e5eaf3;
  --line2: #d8e0ee;
  --txt: #17233d;
  --txt2: #7a869e;
  --acc: #4d7cfe;
  --acc-soft: #aebffc;
  --acc-bg: #eef3ff;
  --teal: #14b8a6;
  --teal-bg: #e6faf7;
  --ok: #16a34a;
  --warn: #d97706;
  --bad: #dc2626;
  --shadow: 0 1px 2px rgba(23,35,61,.04), 0 8px 24px rgba(23,35,61,.06);
}
html.dark {
  --bg: #0d1119;
  --card: #161c2a;
  --card2: #1b2334;
  --line: #273049;
  --line2: #333d59;
  --txt: #e8ecf4;
  --txt2: #8b96ad;
  --acc: #5b8cff;
  --acc-soft: #4a6ede;
  --acc-bg: #1c2742;
  --teal: #2dd4bf;
  --teal-bg: #12322f;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 10px 30px rgba(0,0,0,.35);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--txt);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  min-height: 100vh; transition: background .2s, color .2s;
}
/* 细网格背景纹理 */
.page-bg {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: .35;
  mask-image: radial-gradient(1200px 800px at 50% 0%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(1200px 800px at 50% 0%, #000 30%, transparent 100%);
}

.shell { max-width: 980px; margin: 0 auto; padding: 26px 18px 60px; }
/* admin 覆盖：宽屏全宽 */
.shell.wide { max-width: 1680px; }
@media (min-width: 1600px) { .shell.wide { padding: 30px 40px 60px; } }

/* #19: 移动端适配 */
@media (max-width: 640px) {
  .shell { padding: 14px 12px 60px; }
  .card { padding: 16px 14px; border-radius: 12px; }
  .head-card { padding: 18px 16px 12px; }
  .h1 { font-size: 22px !important; }
  .sub { font-size: 12px; }
  .logo { width: 40px !important; height: 40px !important; font-size: 15px !important; }
  .tabs { flex-wrap: wrap; gap: 2px; }
  .tab { padding: 7px 10px; font-size: 12px; }
  .status-strip { flex-direction: column; gap: 4px; padding: 10px 14px; }
  .stepper { flex-direction: column; gap: 6px; }
  .s-line { display: none; }
  .step { width: 100%; }
  .big-input { font-size: 14px; padding: 11px 12px; }
  .btn { padding: 10px 18px; font-size: 13.5px; }
  .query-row { flex-direction: column; }
  .grid2 { grid-template-columns: 1fr !important; }
  .toolbar { flex-direction: column; align-items: stretch !important; }
  .toolbar > div { width: 100% !important; }
  .toolbar input, .toolbar select { width: 100% !important; }
  .seg { width: 100%; }
  .seg-btn { flex: 1; padding: 9px 14px; }
  .plan-grid { grid-template-columns: 1fr 1fr !important; gap: 8px; }
  .kpi { grid-template-columns: 1fr 1fr !important; }
  .layout { grid-template-columns: 1fr !important; }
  .side { position: static !important; }
  .side .card { display: flex; overflow-x: auto; padding: 6px; gap: 4px; }
  .side-item { white-space: nowrap; padding: 8px 12px; font-size: 12.5px; }
  .tbl { font-size: 11.5px; }
  .tbl th, .tbl td { padding: 6px 6px; }
  .modal { padding: 18px 16px; }
  .foot { font-size: 11px; }
}
@media (max-width: 400px) {
  .plan-grid { grid-template-columns: 1fr !important; }
}

/* ---------- cards ---------- */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow); padding: 22px 26px; margin-bottom: 14px;
}
.card-h { font-size: 15.5px; font-weight: 700; margin-bottom: 14px; }
.hint { color: var(--txt2); font-size: 13px; line-height: 1.65; margin-bottom: 12px; }
.hint a { color: var(--acc); }

/* ---------- header ---------- */
.head-card { padding: 24px 28px 14px; }
.head-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; }
.head-brand { display: flex; gap: 16px; align-items: flex-start; }
.logo {
  width: 52px; height: 52px; border-radius: 12px; background: linear-gradient(135deg,#3b82f6,#2563eb);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 19px; letter-spacing: .5px; flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(37,99,235,.35);
}
.eyebrow {
  color: var(--teal); font-size: 11px; font-weight: 700; letter-spacing: 2.2px;
  margin-bottom: 3px;
}
.h1 { font-size: 30px; font-weight: 800; letter-spacing: .5px; line-height: 1.15; }
.sub { color: var(--txt2); font-size: 13.5px; margin-top: 6px; }
.head-actions { display: flex; gap: 8px; }
.chip {
  background: var(--card); border: 1px solid var(--line2); color: var(--txt);
  border-radius: 10px; padding: 7px 13px; font-size: 13px; font-weight: 700; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; transition: border .15s;
}
.chip:hover { border-color: var(--acc-soft); }

/* ---------- tabs ---------- */
.tabs { display: flex; gap: 4px; margin-top: 20px; border-bottom: none; flex-wrap: wrap; }
.tab {
  background: transparent; border: 1px solid transparent; color: var(--txt2);
  font-size: 14px; font-weight: 600; padding: 9px 16px; border-radius: 10px; cursor: pointer;
  transition: all .15s;
}
.tab:hover { color: var(--txt); background: var(--card2); }
.tab.on { color: var(--acc); background: var(--acc-bg); }

/* ---------- status strip ---------- */
.status-strip {
  display: flex; align-items: center; justify-content: space-between;
  padding: 13px 22px; font-size: 13.5px; color: var(--txt2);
}
.ss-left { display: flex; align-items: center; gap: 8px; }
.ss-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--line2); }
.ss-dot.hot { background: var(--warn); box-shadow: 0 0 0 3px rgba(217,119,6,.15); animation: blink 1.6s infinite; }
@keyframes blink { 50% { opacity: .4; } }
.ss-num { color: var(--acc); font-size: 19px; font-weight: 800; margin: 0 2px; }
.ss-right { font-size: 12.5px; color: var(--txt2); }
.ss-right.off { color: var(--warn); }

/* ---------- seg ---------- */
.seg-wrap { display: flex; justify-content: center; margin-bottom: 14px; }
.seg { background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 4px; display: inline-flex; box-shadow: var(--shadow); }
.seg-btn {
  background: transparent; border: 0; color: var(--txt2); font-size: 14px; font-weight: 700;
  padding: 10px 26px; border-radius: 999px; cursor: pointer; transition: all .15s;
}
.seg-btn.on { background: var(--teal-bg); color: var(--teal); }

/* ---------- stepper ---------- */
.stepper-card { padding: 18px 30px; }
.stepper { display: flex; align-items: center; }
.step { display: flex; align-items: center; gap: 9px; flex-shrink: 0; }
.s-num {
  width: 30px; height: 30px; border-radius: 9px; background: var(--card2); color: var(--txt2);
  border: 1px solid var(--line2); display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; transition: all .2s;
}
.s-txt { font-size: 14px; font-weight: 600; color: var(--txt2); white-space: nowrap; }
.step.on .s-num { background: var(--acc); border-color: var(--acc); color: #fff; box-shadow: 0 3px 10px rgba(77,124,254,.35); }
.step.on .s-txt { color: var(--txt); }
.step.done .s-num { background: var(--teal); border-color: var(--teal); color: #fff; }
.step.done .s-txt { color: var(--teal); }
.s-line { flex: 1; height: 1.5px; background: var(--line2); margin: 0 16px; min-width: 30px; }

/* ---------- forms ---------- */
label { display: block; font-size: 13px; color: var(--txt2); margin: 12px 0 6px; font-weight: 600; }
input, select, textarea {
  width: 100%; background: var(--card); color: var(--txt);
  border: 1px solid var(--line2); border-radius: 11px; padding: 12px 14px;
  font-size: 14px; outline: none; transition: border .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--acc); box-shadow: 0 0 0 3px rgba(77,124,254,.12); }
.big-input { font-size: 15px; padding: 14px 16px; }
.mono { font-family: Consolas, "SF Mono", monospace; }
.full { width: 100%; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 680px) { .grid2 { grid-template-columns: 1fr; } }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; border-radius: 11px; padding: 13px 24px;
  font-size: 14.5px; font-weight: 700; cursor: pointer; transition: all .15s;
}
.btn.primary { background: var(--acc-soft); color: #fff; transition: background .2s, box-shadow .2s; }
/* 表单填好后变实色深蓝 */
.btn.primary.ready {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  box-shadow: 0 4px 14px rgba(37,99,235,.35);
}
.btn.primary.ready:hover { filter: brightness(1.08); }
.btn.primary:hover { filter: brightness(1.06); }
.btn.primary:disabled { opacity: .55; cursor: not-allowed; }
.btn.ghost { background: var(--card2); color: var(--txt); border: 1px solid var(--line2); }
.btn.danger { background: var(--bad); color: #fff; }
.btn.danger-o { background: transparent; border: 1.5px solid var(--bad); color: var(--bad); }
.btn.sm { padding: 8px 16px; font-size: 13px; border-radius: 9px; }
.query-row { display: flex; gap: 10px; }
.query-row input { flex: 1; }

.chk-row { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--txt); font-weight: 500; cursor: pointer; margin: 14px 0 4px; }
.chk-row input { width: 16px; height: 16px; accent-color: var(--acc); }

.order-sum { background: var(--acc-bg); border: 1px solid rgba(77,124,254,.25); border-radius: 11px; padding: 13px 16px; margin: 14px 0 4px; font-size: 14px; }
.sum-row { display: flex; justify-content: space-between; }
.sum-row b { font-size: 16px; }
.sum-save { color: var(--ok); font-size: 12.5px; margin-top: 4px; text-align: right; font-weight: 600; }

/* ---------- CDK info / confirm ---------- */
.cdk-info { margin-top: 16px; background: var(--teal-bg); border-radius: 11px; padding: 14px 18px; }
.ci-row { display: flex; justify-content: space-between; font-size: 13.5px; padding: 5px 0; color: var(--txt2); }
.ci-row b { color: var(--txt); }
.ci-ok { color: var(--ok); font-weight: 700; font-size: 13.5px; margin-top: 8px; }
.confirm-list { margin-bottom: 14px; }
.cf-row { display: flex; justify-content: space-between; padding: 9px 0; border-bottom: 1px dashed var(--line); font-size: 13.5px; color: var(--txt2); }
.cf-row b { color: var(--txt); max-width: 65%; word-break: break-all; text-align: right; }
.confirm-warn { background: rgba(217,119,6,.08); border: 1px solid rgba(217,119,6,.3); color: var(--warn); border-radius: 11px; padding: 12px 16px; font-size: 13px; line-height: 1.6; }

/* ---------- tasks ---------- */
.task-card { background: var(--card2); border: 1px solid var(--line); border-radius: 12px; padding: 15px 18px; margin-bottom: 10px; }
.tc-top { display: flex; justify-content: space-between; align-items: center; }
.tc-mid { color: var(--txt2); font-size: 13px; margin: 7px 0; }
.tc-err { color: var(--bad); font-size: 12.5px; margin: 6px 0; }
.tc-steps { display: flex; gap: 6px; margin-top: 8px; }
.ms { width: 34px; height: 4px; border-radius: 2px; background: var(--line); }
.ms.done { background: var(--teal); }
.ms.now { background: var(--acc); animation: blink 1.4s infinite; }

.badge { display: inline-block; padding: 3px 11px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.badge.st-pending { background: rgba(217,119,6,.12); color: var(--warn); }
.badge.st-processing, .badge.st-paying { background: rgba(77,124,254,.13); color: var(--acc); }
.badge.st-awaiting_payment { background: rgba(20,184,166,.13); color: var(--teal); }
.badge.st-completed { background: rgba(22,163,74,.13); color: var(--ok); }
.badge.st-failed { background: rgba(220,38,38,.12); color: var(--bad); }
.badge.st-cancelled, .badge.st-refunded { background: rgba(122,134,158,.14); color: var(--txt2); }

/* ---------- misc ---------- */
.panel { min-height: 300px; }
.foot { text-align: center; color: var(--txt2); font-size: 12.5px; margin-top: 26px; }
.foot a { color: var(--txt2); text-decoration: underline; }

.toast {
  position: fixed; top: 20px; left: 50%; transform: translateX(-50%) translateY(-90px);
  background: var(--card); border: 1px solid var(--line2); color: var(--txt);
  padding: 12px 22px; border-radius: 12px; font-size: 14px; font-weight: 600; z-index: 99;
  transition: transform .25s; box-shadow: var(--shadow);
}
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.err { border-color: var(--bad); color: var(--bad); }

/* order drawer session reveal */
.cdk-out.revealed { word-break: break-all; color: var(--acc); }
/* ---------- modal / drawer ---------- */
.modal-bg {
  position: fixed; inset: 0; z-index: 60;
  background: rgba(10,14,22,.55); backdrop-filter: blur(3px);
  display: none; align-items: flex-start; justify-content: center;
  padding: 6vh 20px; overflow: auto;
}
.modal-bg.show { display: flex; }
.modal {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0,0,0,.25); padding: 24px 28px;
  width: min(92vw, 640px); max-height: 86vh; overflow: auto;
}
.modal h3 { margin-bottom: 14px; }