:root {
  --brand: #6366f1;
  --brand-2: #8b5cf6;
  --brand-strong: #4f46e5;
  --brand-soft: #e7e7fb;
  --brand-softer: #f2f2fd;
  --grad: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);

  --ink: #14162b;
  --ink-soft: #565b75;
  --ink-faint: #9aa0b8;

  --page-1: #f7f8fc;
  --page-2: #fbfbfe;
  --card: #ffffff;
  --card-2: #ffffff;
  --border: rgba(20, 22, 43, 0.07);
  --border-strong: rgba(20, 22, 43, 0.12);
  --field-bg: #f6f7fb;
  --line: rgba(20, 22, 43, 0.08);

  --shadow-xs: 0 1px 2px rgba(20, 22, 43, 0.05);
  --shadow-sm: 0 2px 6px rgba(20, 22, 43, 0.05), 0 8px 24px rgba(99, 102, 241, 0.07);
  --shadow:    0 1px 2px rgba(20, 22, 43, 0.04), 0 18px 48px rgba(60, 50, 130, 0.10);

  --green: #10b981;
  --warn: #f59e0b;
  --danger: #ef4444;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

[data-theme="dark"] {
  --brand: #5b8dff;
  --brand-2: #22d3ee;
  --brand-strong: #7aa6ff;
  --brand-soft: #15243f;
  --brand-softer: #0e1a30;
  --grad: linear-gradient(135deg, #4f7cff 0%, #22d3ee 100%);

  --ink: #e9eff9;
  --ink-soft: #9eb0cd;
  --ink-faint: #5c6a86;

  --page-1: #05080f;
  --page-2: #090e1a;
  --card: #0f1626;
  --card-2: #121b2e;
  --border: rgba(120, 165, 235, 0.12);
  --border-strong: rgba(120, 165, 235, 0.22);
  --field-bg: #0b1322;
  --line: rgba(120, 165, 235, 0.06);

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.45);
  --shadow:    0 28px 70px rgba(0, 0, 0, 0.6);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; min-height: 100%; }

body {
  font-family: "Inter", -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  min-height: 100vh;
  position: relative;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  background:
    radial-gradient(1100px 560px at 50% -8%, rgba(99, 102, 241, 0.12), transparent 60%),
    radial-gradient(820px 480px at 88% 4%, rgba(139, 92, 246, 0.10), transparent 55%),
    linear-gradient(180deg, var(--page-1) 0%, var(--page-2) 55%);
  background-attachment: fixed;
  transition: color 0.3s var(--ease);
}

/* 暗色：更冷、更有科技感的氛围光（电蓝 + 青） */
[data-theme="dark"] body {
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(59, 130, 246, 0.16), transparent 60%),
    radial-gradient(760px 460px at 88% 0%, rgba(34, 211, 238, 0.10), transparent 55%),
    radial-gradient(680px 520px at 8% 16%, rgba(79, 124, 255, 0.10), transparent 60%),
    linear-gradient(180deg, #05080f 0%, #090e1a 60%, #070b14 100%);
  background-attachment: fixed;
}

.bg-grid {
  position: fixed;
  inset: 0;
  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: 0.5;
  mask-image: radial-gradient(circle at 50% 24%, #000 0%, transparent 68%);
  -webkit-mask-image: radial-gradient(circle at 50% 24%, #000 0%, transparent 68%);
}

.shell {
  position: relative;
  width: min(640px, 92vw);
  margin: 0 auto;
  padding: 30px 0 44px;
}

/* ===== 标题区 ===== */
.masthead {
  position: relative;
  text-align: center;
  margin-bottom: 22px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.app-icon {
  width: 60px;
  height: 60px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: var(--grad);
  box-shadow:
    0 8px 20px rgba(99, 102, 241, 0.36),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
  margin-bottom: 14px;
  transition: transform 0.4s var(--ease);
}
.app-icon svg { width: 30px; height: 30px; }
.app-icon:hover { transform: translateY(-2px) rotate(-3deg); }
.app-icon svg { filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15)); }

.page-title {
  margin: 0;
  font-size: clamp(26px, 4.4vw, 38px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.08;
}
.title-plus { color: var(--ink); }
.title-accent {
  margin-left: 8px;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-subtitle {
  margin: 10px 0 0;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--ink-soft);
}

.badge-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 16px;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
  box-shadow: var(--shadow-xs);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.pill:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.pill .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.masthead-controls {
  position: absolute;
  top: 2px;
  right: 0;
  display: flex;
  gap: 8px;
  align-items: center;
}

/* ===== 通用按钮 ===== */
.ghost-btn {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 13.5px;
  border-radius: 11px;
  padding: 9px 14px;
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  transition: all 0.2s var(--ease);
}
.ghost-btn:hover {
  color: var(--brand-strong);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.icon-btn { padding: 9px; display: inline-grid; place-items: center; line-height: 0; }
.ic-sun { display: none; }
[data-theme="dark"] .ic-moon { display: none; }
[data-theme="dark"] .ic-sun { display: inline; }

.primary-btn {
  width: 100%;
  position: relative;
  border: none;
  background: var(--grad);
  color: #fff;
  font-weight: 700;
  font-size: 15.5px;
  border-radius: 14px;
  padding: 16px;
  cursor: pointer;
  letter-spacing: 0.01em;
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.32);
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease), opacity 0.18s var(--ease);
}
.primary-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(99, 102, 241, 0.4); }
.primary-btn:active { transform: translateY(0); }
a.primary-btn { display: block; text-align: center; text-decoration: none; }
.primary-btn:disabled {
  cursor: not-allowed;
  opacity: 0.5;
  transform: none;
  box-shadow: none;
}

/* ===== Tabs（分段控件）===== */
.tabs {
  display: flex;
  gap: 4px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 5px;
  box-shadow: var(--shadow-sm);
  margin: 0 auto 14px;
  width: min(420px, 100%);
}
.tab {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 14.5px;
  padding: 12px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.22s var(--ease);
}
.tab:hover { color: var(--ink); }
.tab.is-active {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 6px 14px rgba(99, 102, 241, 0.3);
}

/* ===== 状态条 ===== */
.status-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 13px 20px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 18px;
  font-size: 13.5px;
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.16);
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.18); }
  50% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0.04); }
}
.status-main { color: var(--ink-soft); font-weight: 500; }
.status-main strong { color: var(--brand-strong); font-size: 17px; margin: 0 4px; font-weight: 700; }
.status-sync { margin-left: auto; color: var(--ink-faint); font-weight: 600; font-size: 12px; }

/* ===== Stepper ===== */
.stepper {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  padding: 0 4px;
}
.step { display: flex; flex-direction: column; align-items: center; gap: 7px; }
.step-dot {
  width: 38px; height: 38px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-weight: 700; font-size: 15px;
  background: var(--card);
  color: var(--ink-faint);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-xs);
  transition: all 0.3s var(--ease);
}
.step-label { font-size: 12px; color: var(--ink-faint); font-weight: 600; transition: color 0.3s var(--ease); }
.step.is-active .step-dot {
  background: var(--card);
  color: var(--brand-strong);
  border: 2px solid var(--brand);
  box-shadow: 0 0 0 5px var(--brand-softer), 0 6px 16px rgba(99, 102, 241, 0.18);
}
.step.is-active .step-label { color: var(--brand-strong); }
.step.is-done .step-dot {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 6px 14px rgba(99, 102, 241, 0.3);
}
.step.is-done .step-label { color: var(--ink-soft); }
.step-line {
  flex: 1;
  height: 3px;
  border-radius: 3px;
  background: var(--line);
  overflow: hidden;
  transition: background 0.3s var(--ease);
}
.step-line.is-done { background: var(--grad); }

/* ===== Card ===== */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 26px 26px;
  box-shadow: var(--shadow);
}
/* 暗色：玻璃质感卡片 + 顶部细微高光，更高级 */
[data-theme="dark"] .card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0) 120px), var(--card);
  border-color: rgba(120, 165, 235, 0.14);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 28px 70px rgba(0, 0, 0, 0.6);
}
.card-title { margin: 0 0 16px; font-size: 18px; font-weight: 700; letter-spacing: -0.01em; }
.card-title.center { text-align: center; }

/* ===== Panels / Panes ===== */
.tab-panel { display: none; }
.tab-panel.is-active { display: block; animation: rise 0.32s var(--ease); }
.step-pane { display: none; }
.step-pane.is-active { display: block; animation: rise 0.28s var(--ease); }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ===== Fields ===== */
.field {
  width: 100%;
  border: 1px solid var(--border-strong);
  background: var(--field-bg);
  color: var(--ink);
  border-radius: 13px;
  padding: 15px 17px;
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease), background 0.18s var(--ease);
}
.field::placeholder { color: var(--ink-faint); }
.field:focus {
  border-color: var(--brand);
  background: var(--card);
  box-shadow: 0 0 0 4px var(--brand-softer);
}
.field.invalid { border-color: var(--danger); box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.12); }
.textarea { min-height: 150px; resize: vertical; line-height: 1.65; font-size: 14px; }
.field-hint { margin: 12px 2px 18px; font-size: 13px; color: var(--ink-faint); line-height: 1.6; }
.field-hint.center { text-align: center; }
.field-hint.error { color: var(--danger); }
.field-hint.ok { color: var(--green); }
.field-hint:empty { display: none; }
.field-hint a { color: var(--brand-strong); text-decoration: none; font-weight: 600; }
.field-hint a:hover { text-decoration: underline; }
.field-hint code {
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 12px;
  background: var(--field-bg);
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  padding: 1px 5px;
  color: var(--brand-strong);
}

.btn-row { display: flex; gap: 12px; }
.btn-row .nav-btn { flex: 1 1 0; width: auto; min-width: 0; padding: 15px; }
.ghost-btn.nav-btn { font-size: 15px; }

/* ===== Summary ===== */
.summary {
  margin: 0 0 22px;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: var(--field-bg);
}
.summary-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  border-bottom: 1px solid var(--border);
}
.summary-row:last-child { border-bottom: none; }
.summary-row dt { color: var(--ink-faint); font-size: 13.5px; }
.summary-row dd { margin: 0; color: var(--ink); font-weight: 600; font-size: 13.5px; text-align: right; word-break: break-all; }

/* ===== Done ===== */
.done-icon {
  width: 66px; height: 66px;
  margin: 6px auto 18px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 30px; color: #fff;
  background: var(--grad);
  box-shadow: 0 12px 28px rgba(99, 102, 241, 0.4);
  animation: pop 0.4s var(--ease);
}
@keyframes pop { from { transform: scale(0.6); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.done-icon.spin {
  background: transparent !important;
  box-shadow: none;
  border: 5px solid var(--brand-soft);
  border-top-color: var(--brand-strong);
  animation: done-spin 0.9s linear infinite;
}
@keyframes done-spin { to { transform: rotate(360deg); } }
.done-icon.success { background: var(--green); box-shadow: 0 12px 28px rgba(16, 185, 129, 0.38); }
.done-icon.failed { background: var(--danger); box-shadow: 0 12px 28px rgba(239, 68, 68, 0.35); }
.done-task { text-align: center; font-size: 15px; color: var(--ink-soft); margin: 0 0 6px; }
.done-task strong { color: var(--brand-strong); margin-left: 6px; font-family: ui-monospace, monospace; }
[data-pane="done"] .primary-btn { margin-bottom: 12px; }

/* ===== Query / Batch lookup ===== */
.query-area {
  width: 100%;
  min-height: 96px;
  resize: vertical;
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 13.5px;
  line-height: 1.6;
  margin-bottom: 12px;
}
.query-help {
  font-size: 12.5px;
  color: var(--ink-faint);
  line-height: 1.6;
  margin: 0 0 6px;
}
.query-count {
  font-size: 13px;
  font-weight: 700;
  color: var(--green);
  margin: 0 0 16px;
  min-height: 18px;
}
.query-count:empty { margin-bottom: 0; }
.query-actions { display: flex; gap: 14px; }
.query-actions .ghost-btn,
.query-actions .primary-btn { flex: 1; width: auto; padding: 15px; }

/* 查询结果列表 */
.task-list { display: flex; flex-direction: column; gap: 18px; margin-top: 18px; }
.empty-task {
  text-align: center; color: var(--ink-faint);
  padding: 34px 0; font-size: 14px;
  border: 1px dashed var(--border-strong);
  border-radius: 16px;
  background: var(--field-bg);
}

/* 结果卡片 */
.result-card {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--card);
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: rise 0.25s var(--ease);
}
.result-head {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 16px;
  padding: 20px 22px;
  border: 1px solid transparent;
  border-radius: 16px;
  margin: 14px 14px 0;
}
.result-success .result-head {
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(16, 185, 129, 0.30);
}
.result-pending .result-head {
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(245, 158, 11, 0.30);
}
.result-failed .result-head {
  background: rgba(239, 68, 68, 0.07);
  border-color: rgba(239, 68, 68, 0.28);
}
.result-eyebrow {
  display: block; font-size: 12px; font-weight: 600;
  color: var(--ink-faint); margin-bottom: 4px;
}
.result-title { font-size: 22px; font-weight: 800; margin: 0 0 6px; letter-spacing: -0.01em; }
.result-success .result-title { color: var(--green); }
.result-pending .result-title { color: var(--warn); }
.result-failed .result-title { color: var(--danger); }
.result-sub { font-size: 13.5px; color: var(--ink-soft); margin: 0; line-height: 1.5; word-break: break-word; }
.result-status {
  flex: none;
  font-size: 13px; font-weight: 700;
  white-space: nowrap;
  padding-top: 2px;
}
.result-success .result-status { color: var(--green); }
.result-pending .result-status { color: var(--warn); }
.result-failed .result-status { color: var(--danger); }

.result-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 24px;
  padding: 22px;
}
.result-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.result-field.rf-span { grid-column: 1 / -1; }
.rf-label { font-size: 12.5px; color: var(--ink-faint); }
.rf-value {
  font-size: 16px; font-weight: 700; color: var(--ink);
  word-break: break-all;
}
.rf-value.rf-email { font-size: 18px; }
.rf-value.rf-mono { font-family: ui-monospace, "Cascadia Code", monospace; font-size: 14px; }
.plan-chip {
  display: inline-flex; align-items: center; gap: 6px;
  align-self: flex-start;
  background: var(--brand-softer);
  color: var(--brand-strong);
  border-radius: 999px;
  padding: 7px 16px 7px 12px;
  font-size: 14px; font-weight: 700;
}
.plan-chip-plus {
  display: inline-flex; align-items: center; justify-content: center;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--brand-strong); color: #fff;
  font-size: 13px; line-height: 1;
}

.result-foot {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  padding: 16px 22px;
  border-top: 1px solid var(--border);
}
.result-foot-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.ghost-btn.sm { width: auto; padding: 9px 16px; font-size: 13px; }
.ghost-btn.sm.copied { color: var(--green); border-color: rgba(16, 185, 129, 0.4); }
.result-taskid {
  font-size: 12px; color: var(--ink-faint);
  font-family: ui-monospace, monospace;
  word-break: break-all;
}

@media (max-width: 560px) {
  .result-body { grid-template-columns: 1fr; }
  .result-title { font-size: 19px; }
}

/* ===== Footer ===== */
.footer {
  display: flex;
  justify-content: space-between;
  margin-top: 30px;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  font-weight: 600;
}

/* ===== FAB ===== */
.fab-stack {
  position: fixed;
  right: 22px; bottom: 26px;
  display: flex; flex-direction: column; gap: 12px;
  z-index: 50;
}
.fab {
  width: 46px; height: 46px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--brand-strong);
  cursor: pointer;
  display: grid; place-items: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.fab:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.fab-accent {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
}

@media (max-width: 560px) {
  .masthead-controls { position: static; justify-content: center; margin-top: 18px; }
  .step-label { display: none; }
  .stepper { gap: 8px; }
  .card { padding: 26px 20px; }
}