:root {
  --bg: #0f1419;
  --panel: #1a222c;
  --panel-2: #121820;
  --line: #2a3542;
  --text: #e7eef6;
  --muted: #8b9aab;
  --accent: #3d9cf0;
  --accent-dim: rgba(61, 156, 240, 0.14);
  --ok: #3ecf8e;
  --err: #f07178;
  --warn: #e6c07b;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(900px 400px at 10% -10%, #1c3a5a 0%, transparent 55%),
    radial-gradient(700px 360px at 100% 0%, #1a2e28 0%, transparent 50%),
    var(--bg);
}
.wrap { max-width: 1040px; margin: 0 auto; padding: 24px 16px 48px; }
.wrap:has(.admin-shell) { max-width: 1280px; padding: 16px 12px 32px; }
.top { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 18px; }
h1 { margin: 0 0 4px; font-size: 1.5rem; letter-spacing: 0.02em; }
h2 { margin: 0; font-size: 1.02rem; font-weight: 650; }
h3 { margin: 0 0 6px; font-size: 0.95rem; }
.muted { color: var(--muted); margin: 0; }
.muted.tight { margin-bottom: 10px; font-size: 0.88rem; line-height: 1.45; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px 18px;
  margin-bottom: 14px;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.panel-head h2 { margin: 0; }
.hint { color: var(--muted); font-size: 0.82rem; }
.hint code { font-size: 0.8rem; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.status-grid { align-items: start; }
@media (max-width: 860px) { .grid { grid-template-columns: 1fr; } }

/* Mode switch */
.mode-switch { margin-bottom: 14px; }
.mode-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.mode-tab {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.mode-tab:hover { border-color: #3d5166; }
.mode-tab.active {
  border-color: var(--accent);
  background: var(--accent-dim);
  box-shadow: inset 0 0 0 1px rgba(61, 156, 240, 0.35);
}
.mode-cli { font-size: 0.72rem; color: #6a8499; font-weight: 400; font-family: ui-monospace, Consolas, monospace; }
.delivery-block { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.delivery-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 10px; }
.delivery-head h3 { margin: 0; font-size: 0.95rem; font-weight: 650; }
.delivery-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}
.delivery-tab {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.delivery-tab:hover { border-color: #3d5166; }
.delivery-tab.active {
  border-color: #3ecf8e;
  background: rgba(62, 207, 142, 0.1);
  box-shadow: inset 0 0 0 1px rgba(62, 207, 142, 0.35);
}
.delivery-title { font-size: 1rem; font-weight: 650; }
.delivery-desc { font-size: 0.8rem; color: var(--muted); font-weight: 400; }
.delivery-cli { font-size: 0.72rem; color: #6a8499; font-family: ui-monospace, Consolas, monospace; font-weight: 400; }
.delivery-detail { margin: 12px 0; padding: 12px 14px; border-radius: 10px; background: var(--panel-2); border: 1px solid var(--line); }
.delivery-save-hint { margin-top: 8px; }
@media (max-width: 560px) { .delivery-tabs { grid-template-columns: 1fr; } }
.mode-title { font-size: 1.02rem; font-weight: 650; }
.mode-desc { font-size: 0.8rem; color: var(--muted); font-weight: 400; }
@media (max-width: 560px) { .mode-tabs { grid-template-columns: 1fr; } }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid var(--line);
  color: var(--muted);
}
.badge-single { color: #9ec9f5; border-color: rgba(61, 156, 240, 0.4); background: var(--accent-dim); }
.badge-dual { color: #9ee5c2; border-color: rgba(62, 207, 142, 0.4); background: rgba(62, 207, 142, 0.12); }

.kv {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 6px 10px;
  margin: 0 0 14px;
  font-size: 0.92rem;
}
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-all; }
.kv.compact { margin: 12px 0 0; font-size: 0.86rem; }

label { display: block; margin-bottom: 12px; font-size: 0.88rem; color: var(--muted); }
input[type="text"], input[type="password"], input[type="number"], input[type="url"], input[type="file"], select {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 9px 11px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
}
.check { display: flex; align-items: center; gap: 8px; color: var(--text); margin-bottom: 10px; }
.check input { width: auto; margin: 0; }

button, .btn {
  display: inline-block;
  border: 0;
  border-radius: 8px;
  padding: 9px 14px;
  background: var(--accent);
  color: #061018;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
button:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 16px; }
.form-grid.inner { margin: 0; }
.span-2 { grid-column: 1 / -1; }
@media (max-width: 860px) { .form-grid { grid-template-columns: 1fr; } }

.fieldset {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 14px 4px;
  margin: 0 0 10px;
  background: rgba(0, 0, 0, 0.12);
}
.fieldset legend {
  padding: 0 6px;
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 650;
}

.actions { grid-column: 1 / -1; margin-top: 6px; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.upload-row { margin-top: 8px; }
.upload-row input[type="file"] { flex: 1; min-width: 180px; width: auto; margin: 0; }

.mode-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.subpanel {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
}
.req, .opt {
  font-size: 0.72rem;
  font-weight: 600;
  vertical-align: middle;
  margin-left: 4px;
  padding: 1px 6px;
  border-radius: 4px;
}
.req { color: var(--err); background: rgba(240, 113, 120, 0.12); }
.opt { color: var(--muted); background: rgba(139, 154, 171, 0.12); }
@media (max-width: 860px) { .mode-grid { grid-template-columns: 1fr; } }

.file-pill {
  margin: 8px 0 0;
  padding: 8px 10px;
  border-radius: 8px;
  background: #0b1016;
  border: 1px solid var(--line);
  font-size: 0.86rem;
  word-break: break-all;
}
.warn { color: var(--warn); }
.ok-text { color: var(--ok); }

.login-card {
  max-width: 380px;
  margin: 12vh auto 0;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
}
.stack label { margin-bottom: 16px; }
.stack button { width: 100%; }

.qr-row {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 12px;
}
.qr-box {
  padding: 10px;
  display: inline-block;
  background: #fff;
  border-radius: 8px;
  line-height: 0;
  flex-shrink: 0;
}
.qr-actions { flex: 1; min-width: 160px; }
.qr-meta { flex: 1; min-width: 140px; }

.dl-layout {
  display: grid;
  grid-template-columns: minmax(168px, 220px) 1fr;
  gap: 18px;
  align-items: start;
  margin-top: 10px;
}
.dl-stats-panel {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 14px 12px;
}
.dl-stats-panel h4 {
  margin: 0 0 10px;
  font-size: 0.88rem;
  font-weight: 650;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.stats-kv {
  grid-template-columns: 1fr auto;
  gap: 6px 12px;
  margin-bottom: 12px;
}
.stats-kv dt { font-size: 0.82rem; color: var(--muted); }
.stats-kv dd {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  text-align: right;
}
.stats-kv .stat-qr { color: var(--accent); }
.stats-kv .stat-link { color: var(--ok); }
.dl-main { min-width: 0; }
@media (max-width: 780px) {
  .dl-layout { grid-template-columns: 1fr; }
}
.path { font-size: 0.82rem; color: var(--muted); margin: 6px 0 10px; }
.tools { margin: 10px 0 0; padding-left: 18px; color: var(--muted); font-size: 0.85rem; word-break: break-all; }
.log {
  max-height: 360px;
  overflow: auto;
  background: #0b1016;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  font-size: 0.78rem;
  line-height: 1.45;
  white-space: pre-wrap;
  margin-top: 10px;
}
.err-box {
  background: rgba(240, 113, 120, 0.12);
  border: 1px solid rgba(240, 113, 120, 0.35);
  color: var(--err);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin: 0 0 12px;
}
.flash { list-style: none; padding: 0; margin: 0 0 14px; }
.flash li { padding: 10px 12px; border-radius: 8px; margin-bottom: 8px; }
.flash .ok { background: rgba(62, 207, 142, 0.15); color: var(--ok); }
.flash .err { background: rgba(240, 113, 120, 0.15); color: var(--err); }
code { color: #c6e2ff; }

.details-panel summary {
  cursor: pointer;
  list-style: none;
}
.details-panel summary::-webkit-details-marker { display: none; }
.details-panel summary h2 {
  display: inline;
  border-bottom: 1px dashed var(--line);
}
.details-panel summary::before {
  content: "▸ ";
  color: var(--muted);
}
.details-panel[open] summary::before { content: "▾ "; }

/* ---- Admin shell (sidebar layout) ---- */
.admin-shell {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}
@media (max-width: 900px) {
  .admin-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}

.sidebar {
  position: sticky;
  top: 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 420px;
}
.sidebar-brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 4px 8px 10px;
  border-bottom: 1px solid var(--line);
}
.sidebar-brand strong { font-size: 1rem; }
.sidebar-sub { font-size: 0.78rem; color: var(--muted); }
.sidebar-nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.sidebar-nav .nav-item {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: background 0.12s, color 0.12s;
}
.sidebar-nav .nav-item:hover { background: rgba(255,255,255,0.04); color: var(--text); }
.sidebar-nav .nav-item.active {
  background: var(--accent-dim);
  color: #9ec9f5;
  font-weight: 600;
}
.sidebar-foot { margin-top: auto; padding-top: 8px; }
.btn-block { display: block; width: 100%; text-align: center; }

.admin-main { min-width: 0; }
.admin-top { margin-bottom: 12px; }
/* 不用 display:none，否则部分浏览器不提交隐藏面板里的 checkbox/select */
.admin-section[hidden] {
  position: absolute !important;
  left: -10000px !important;
  top: 0 !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  visibility: hidden !important;
  pointer-events: none !important;
  display: block !important;
}

.subpanel.flat { background: transparent; border: 0; padding: 0; }
.mode-tab .mode-cli {
  display: block;
  margin-top: 6px;
  font-size: 0.72rem;
  color: var(--muted);
  font-family: ui-monospace, Consolas, monospace;
  word-break: break-all;
}

.cli-box {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  background: #0b1016;
  border: 1px solid var(--line);
}
.cli-label {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 6px;
}
.cli-box code {
  display: block;
  font-size: 0.82rem;
  line-height: 1.5;
  word-break: break-all;
  white-space: pre-wrap;
}

.callout {
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 14px;
  font-size: 0.88rem;
  line-height: 1.5;
}
.callout-ok {
  background: rgba(62, 207, 142, 0.1);
  border: 1px solid rgba(62, 207, 142, 0.35);
}
.callout-warn {
  background: rgba(230, 192, 123, 0.1);
  border: 1px solid rgba(230, 192, 123, 0.4);
}
.callout-warn strong { color: var(--warn); }
.callout strong { display: block; margin-bottom: 4px; color: var(--ok); }
.callout p { margin: 0; color: var(--text); }

.option-cards {
  display: grid;
  gap: 10px;
  margin-bottom: 4px;
}
.option-cards.cols-2 { grid-template-columns: 1fr 1fr; }
.option-cards.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) {
  .option-cards.cols-2, .option-cards.cols-3 { grid-template-columns: 1fr; }
}

.option-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  cursor: pointer;
  margin: 0;
  color: var(--text);
  transition: border-color 0.12s;
}
.option-card:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-dim);
  box-shadow: inset 0 0 0 1px rgba(61, 156, 240, 0.3);
}
.option-card input { width: auto; margin: 0 0 2px; }
.option-title { font-weight: 650; font-size: 0.92rem; }
.option-desc { font-size: 0.82rem; color: var(--muted); line-height: 1.45; }

.field-block { margin-bottom: 8px; }
.field-help {
  margin: 4px 0 0;
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.4;
}
.opt-desc { font-size: 0.84rem; color: var(--muted); margin: 0 0 8px; line-height: 1.45; }

.toggle-grid { display: flex; flex-direction: column; gap: 8px; }
.toggle-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.15);
  margin: 0;
  color: var(--text);
  cursor: pointer;
}
.toggle-row input { margin-top: 3px; flex-shrink: 0; width: auto; }
.toggle-body { display: flex; flex-direction: column; gap: 2px; }
.toggle-body strong { font-size: 0.88rem; }
.toggle-body span { font-size: 0.8rem; color: var(--muted); line-height: 1.4; }

.form-actions-bar {
  position: sticky;
  bottom: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  margin: 0 0 14px;
  background: rgba(15, 20, 25, 0.92);
  border: 1px solid var(--line);
  border-radius: 12px;
  backdrop-filter: blur(8px);
}

.share-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.share-qr-only {
  display: block;
  max-width: min(280px, 80vw);
  height: auto;
  background: #fff;
  border-radius: 8px;
  padding: 8px;
}