/* ═══════════════════════════════════════════════════════════════════
   CLB Pilot — Design System
   现代 SaaS 风格：信任感 + 专业度 + 清晰信息层级
   ═══════════════════════════════════════════════════════════════════ */

/* ── Tokens ─────────────────────────────────────────────────────── */
:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --primary-border: #c7d2fe;
  --accent: #06b6d4;
  --accent-light: #ecfeff;
  --success: #10b981;
  --success-light: #ecfdf5;
  --warning: #f59e0b;
  --warning-light: #fffbeb;
  --error: #ef4444;
  --error-light: #fef2f2;

  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --text: #0f172a;
  --text-2: #475569;
  --text-3: #94a3b8;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 6px rgba(0,0,0,.06), 0 2px 4px rgba(0,0,0,.04);
  --shadow-lg: 0 10px 25px rgba(0,0,0,.08), 0 4px 10px rgba(0,0,0,.04);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --container: 1120px;
  --nav-h: 64px;
}

/* ── Reset ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }

/* ── Layout ─────────────────────────────────────────────────────── */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.text-center { text-align: center; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ── Typography ─────────────────────────────────────────────────── */
h1 { font-size: 52px; font-weight: 800; line-height: 1.12; letter-spacing: -0.025em; color: var(--text); }
h2 { font-size: 36px; font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; color: var(--text); }
h3 { font-size: 22px; font-weight: 600; line-height: 1.35; color: var(--text); }
h4 { font-size: 17px; font-weight: 600; line-height: 1.4; color: var(--text); }
.lead { font-size: 20px; line-height: 1.65; color: var(--text-2); }
.body-lg { font-size: 18px; line-height: 1.7; color: var(--text-2); }
.small { font-size: 14px; color: var(--text-3); }
.muted { color: var(--text-3); }
.highlight { color: var(--primary); font-weight: 600; }

/* ── Badge / Tag ────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: 50px; font-size: 13px; font-weight: 600;
  background: var(--primary-light); color: var(--primary);
  border: 1px solid var(--primary-border);
}
.badge-success { background: var(--success-light); color: var(--success); border-color: #a7f3d0; }
.badge-warning { background: var(--warning-light); color: var(--warning); border-color: #fde68a; }
.badge-neutral { background: var(--surface-2); color: var(--text-2); border-color: var(--border); }

/* ── Buttons ────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius);
  font-size: 15px; font-weight: 600; line-height: 1;
  transition: all .15s ease; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--primary-hover); box-shadow: var(--shadow-md); transform: translateY(-1px); }
.btn-secondary { background: var(--surface); color: var(--text); border: 1px solid var(--border-strong); }
.btn-secondary:hover { background: var(--surface-2); border-color: var(--text-3); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #0891b2; }
.btn-lg { padding: 16px 32px; font-size: 17px; border-radius: 12px; }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* ── Cards ──────────────────────────────────────────────────────── */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px;
  box-shadow: var(--shadow-sm); transition: all .2s ease;
}
.card:hover { box-shadow: var(--shadow-md); }
.card-header { margin-bottom: 16px; }
.card-title { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.card-desc { font-size: 14px; color: var(--text-2); line-height: 1.6; }

/* ── Nav ────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h); background: rgba(255,255,255,.85);
  backdrop-filter: blur(12px); border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--container); margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: -0.02em;
}
.nav-logo-icon {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 16px; font-weight: 800;
}
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 14px; font-weight: 500; color: var(--text-2);
  transition: color .15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 12px; }

/* ── Hero ───────────────────────────────────────────────────────── */
.hero {
  padding: 80px 0 64px;
  background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 100%);
  overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.hero-badge { margin-bottom: 20px; }
.hero h1 { margin-bottom: 20px; }
.hero .lead { margin-bottom: 32px; max-width: 520px; }
.hero-ctas { display: flex; gap: 12px; margin-bottom: 36px; }
.hero-stats { display: flex; gap: 32px; }
.hero-stat-value { font-size: 28px; font-weight: 800; color: var(--text); letter-spacing: -0.02em; }
.hero-stat-label { font-size: 13px; color: var(--text-3); margin-top: 2px; }

/* Hero visual (score card mockup) */
.hero-visual { position: relative; }
.score-card {
  background: var(--surface); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); border: 1px solid var(--border);
  overflow: hidden;
}
.score-card-header {
  background: linear-gradient(135deg, var(--primary), #6366f1);
  padding: 20px 24px; color: #fff;
}
.score-card-header h3 { color: #fff; font-size: 16px; }
.score-card-body { padding: 24px; }
.score-band {
  display: flex; align-items: center; gap: 16px;
  padding: 16px; border-radius: var(--radius);
  background: var(--success-light); border: 1px solid #a7f3d0;
  margin-bottom: 20px;
}
.score-band-number { font-size: 42px; font-weight: 800; color: var(--success); line-height: 1; }
.score-band-label { font-size: 14px; font-weight: 600; color: var(--success); }
.score-band-range { font-size: 12px; color: var(--text-2); margin-top: 2px; }

.score-dims { display: flex; flex-direction: column; gap: 12px; }
.score-dim { display: flex; align-items: center; gap: 12px; }
.score-dim-label { width: 80px; font-size: 13px; color: var(--text-2); }
.score-dim-bar { flex: 1; height: 8px; background: var(--surface-2); border-radius: 4px; overflow: hidden; }
.score-dim-fill { height: 100%; border-radius: 4px; transition: width .6s ease; }
.score-dim-val { width: 24px; font-size: 13px; font-weight: 600; text-align: right; }

/* ── Trust bar ──────────────────────────────────────────────────── */
.trust-bar {
  padding: 32px 0; border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.trust-inner {
  display: flex; align-items: center; justify-content: center;
  gap: 48px; flex-wrap: wrap;
}
.trust-item { display: flex; align-items: center; gap: 10px; }
.trust-icon {
  width: 36px; height: 36px; border-radius: 10px; display: flex;
  align-items: center; justify-content: center; font-size: 18px;
}
.trust-icon.blue { background: var(--primary-light); }
.trust-icon.green { background: var(--success-light); }
.trust-icon.amber { background: var(--warning-light); }
.trust-icon.cyan { background: var(--accent-light); }
.trust-text { font-size: 14px; font-weight: 600; color: var(--text); }
.trust-sub { font-size: 12px; color: var(--text-3); }

/* ── Section headers ────────────────────────────────────────────── */
.section-header { margin-bottom: 48px; max-width: 640px; }
.section-header.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-tag {
  display: inline-block; font-size: 13px; font-weight: 600;
  color: var(--primary); text-transform: uppercase;
  letter-spacing: .06em; margin-bottom: 12px;
}
.section-header h2 { margin-bottom: 12px; }

/* ── Feature cards ──────────────────────────────────────────────── */
.feature-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px;
  transition: all .2s ease;
}
.feature-card:hover { border-color: var(--primary-border); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.feature-icon {
  width: 48px; height: 48px; border-radius: 12px; display: flex;
  align-items: center; justify-content: center; font-size: 22px;
  margin-bottom: 18px;
}
.feature-icon.blue { background: var(--primary-light); }
.feature-icon.cyan { background: var(--accent-light); }
.feature-icon.green { background: var(--success-light); }
.feature-icon.amber { background: var(--warning-light); }
.feature-card h3 { font-size: 18px; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-2); line-height: 1.65; }

/* ── Steps ──────────────────────────────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.step { text-align: center; padding: 24px; }
.step-number {
  width: 52px; height: 52px; border-radius: 50%; display: inline-flex;
  align-items: center; justify-content: center;
  font-size: 20px; font-weight: 800; color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  margin-bottom: 20px;
}
.step h3 { margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--text-2); }

/* ── Comparison table ───────────────────────────────────────────── */
.comparison-table {
  width: 100%; border-collapse: collapse;
  background: var(--surface); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow);
}
.comparison-table th, .comparison-table td {
  padding: 16px 20px; text-align: left;
  border-bottom: 1px solid var(--border);
}
.comparison-table th {
  background: var(--surface-2); font-size: 13px;
  font-weight: 600; color: var(--text-2); text-transform: uppercase;
  letter-spacing: .04em;
}
.comparison-table th:first-child { border-radius: var(--radius-lg) 0 0 0; }
.comparison-table th:last-child { border-radius: 0 var(--radius-lg) 0 0; }
.comparison-table td { font-size: 14px; color: var(--text); }
.comparison-table tr:last-child td { border-bottom: none; }
.comparison-table .check { color: var(--success); font-weight: 700; }
.comparison-table .cross { color: var(--error); font-weight: 700; }
.comparison-table .highlight-col { background: var(--primary-light); }
.comparison-table .highlight-col th { background: var(--primary); color: #fff; }

/* ── Pricing ────────────────────────────────────────────────────── */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.pricing-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px;
  position: relative; transition: all .2s ease;
}
.pricing-card:hover { box-shadow: var(--shadow-md); }
.pricing-card.popular {
  border-color: var(--primary); border-width: 2px;
  box-shadow: var(--shadow-lg); transform: scale(1.03);
}
.pricing-popular-tag {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: #fff; font-size: 12px; font-weight: 700;
  padding: 4px 16px; border-radius: 50px; letter-spacing: .03em;
}
.pricing-card h3 { font-size: 20px; margin-bottom: 4px; }
.pricing-card .pricing-sub { font-size: 14px; color: var(--text-3); margin-bottom: 20px; }
.pricing-amount { font-size: 42px; font-weight: 800; letter-spacing: -0.03em; }
.pricing-amount .pricing-currency { font-size: 20px; font-weight: 600; vertical-align: super; }
.pricing-amount .pricing-period { font-size: 15px; font-weight: 400; color: var(--text-3); }
.pricing-desc { font-size: 14px; color: var(--text-2); margin: 12px 0 24px; }
.pricing-features { margin-bottom: 28px; }
.pricing-features li {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 8px 0; font-size: 14px; color: var(--text-2);
}
.pricing-features .check-icon { color: var(--success); font-weight: 700; flex-shrink: 0; }

/* ── FAQ ────────────────────────────────────────────────────────── */
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 12px; overflow: hidden; background: var(--surface);
}
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px; font-size: 16px; font-weight: 600; color: var(--text);
  text-align: left; background: none;
}
.faq-q:hover { background: var(--surface-2); }
.faq-q .faq-arrow { transition: transform .2s; font-size: 14px; color: var(--text-3); }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-a {
  padding: 0 24px; max-height: 0; overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
}
.faq-item.open .faq-a { padding: 0 24px 20px; max-height: 300px; }
.faq-a p { font-size: 14px; color: var(--text-2); line-height: 1.7; }

/* ── Footer ─────────────────────────────────────────────────────── */
.footer {
  background: var(--text); color: var(--text-3);
  padding: 56px 0 32px; margin-top: 48px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer h4 { color: #fff; margin-bottom: 16px; font-size: 14px; }
.footer p { font-size: 14px; line-height: 1.7; }
.footer a { color: var(--text-3); font-size: 14px; display: block; padding: 4px 0; transition: color .15s; }
.footer a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px;
}

/* ── App pages ──────────────────────────────────────────────────── */
.app-layout {
  display: grid; grid-template-columns: 280px 1fr;
  min-height: calc(100vh - var(--nav-h));
}
.app-sidebar {
  background: var(--surface); border-right: 1px solid var(--border);
  padding: 24px 16px; overflow-y: auto;
}
.sidebar-section { margin-bottom: 28px; }
.sidebar-label {
  font-size: 11px; font-weight: 700; color: var(--text-3);
  text-transform: uppercase; letter-spacing: .08em;
  padding: 0 12px; margin-bottom: 8px;
}
.sidebar-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 500; color: var(--text-2);
  cursor: pointer; transition: all .12s; width: 100%;
}
.sidebar-item:hover { background: var(--surface-2); color: var(--text); }
.sidebar-item.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
.sidebar-item-icon { font-size: 18px; width: 22px; text-align: center; }

.app-main { padding: 32px 40px; overflow-y: auto; }

/* Practice page */
.practice-header { margin-bottom: 32px; }
.task-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.task-card {
  padding: 18px; border: 2px solid var(--border);
  border-radius: var(--radius); cursor: pointer;
  transition: all .15s; background: var(--surface);
}
.task-card:hover { border-color: var(--primary-border); }
.task-card.selected { border-color: var(--primary); background: var(--primary-light); }
.task-card-number {
  font-size: 12px; font-weight: 700; color: var(--primary);
  margin-bottom: 6px; letter-spacing: .04em;
}
.task-card-name { font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.task-card-time { font-size: 12px; color: var(--text-3); }

/* Prompt display */
.prompt-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px;
  margin: 24px 0;
}
.prompt-label {
  font-size: 11px; font-weight: 700; color: var(--primary);
  text-transform: uppercase; letter-spacing: .06em; margin-bottom: 10px;
}
.prompt-text { font-size: 17px; line-height: 1.65; color: var(--text); }
.prompt-visual {
  background: var(--surface-2); border-radius: var(--radius);
  padding: 16px; margin-top: 16px; font-size: 14px; color: var(--text-2);
  font-style: italic;
}
.prompt-tips {
  margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--border);
}
.prompt-tips h4 { font-size: 13px; color: var(--text-2); margin-bottom: 8px; }
.prompt-tips ul { display: flex; flex-wrap: wrap; gap: 8px; }
.prompt-tips li {
  font-size: 12px; color: var(--text-2); background: var(--surface-2);
  padding: 5px 12px; border-radius: 50px;
}

/* Timer */
.timer-display {
  text-align: center; padding: 32px 0;
}
.timer-phase {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--text-2);
  margin-bottom: 12px; text-transform: uppercase; letter-spacing: .05em;
}
.timer-phase-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--text-3);
}
.timer-phase-dot.recording { background: var(--error); animation: pulse 1.2s infinite; }
.timer-phase-dot.prep { background: var(--warning); }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }
.timer-value {
  font-size: 72px; font-weight: 800; letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums; color: var(--text);
}
.timer-value.recording { color: var(--error); }
.timer-label { font-size: 14px; color: var(--text-3); margin-top: 4px; }

/* Level meter */
.level-meter {
  width: 100%; max-width: 320px; height: 6px;
  background: var(--surface-2); border-radius: 3px;
  margin: 16px auto; overflow: hidden;
}
.level-meter-fill {
  height: 100%; background: var(--primary); border-radius: 3px;
  transition: width .1s;
}

/* Audio metrics table */
.metrics-table {
  width: 100%; border-collapse: collapse;
  background: var(--surface); border-radius: var(--radius);
  overflow: hidden; border: 1px solid var(--border);
}
.metrics-table th, .metrics-table td {
  padding: 12px 16px; text-align: left;
  border-bottom: 1px solid var(--border); font-size: 14px;
}
.metrics-table th {
  background: var(--surface-2); font-weight: 600;
  font-size: 12px; text-transform: uppercase;
  letter-spacing: .04em; color: var(--text-2);
}
.metrics-table tr:last-child td { border-bottom: none; }
.metric-tag {
  display: inline-block; padding: 2px 10px; border-radius: 50px;
  font-size: 12px; font-weight: 600;
}
.metric-tag.in { background: var(--success-light); color: var(--success); }
.metric-tag.lo { background: var(--warning-light); color: var(--warning); }
.metric-tag.hi { background: var(--error-light); color: var(--error); }

.metric-tag.edge { background: var(--warning-light); color: var(--warning); }
.metric-tag.tier-low  { background: var(--warning-light); color: var(--warning); }
.metric-tag.tier-mid  { background: var(--primary-light); color: var(--primary); }
.metric-tag.tier-high { background: var(--success-light); color: var(--success); }

.metrics-block-label {
  font-size: 13px; font-weight: 700; color: var(--text-1, #1a1d21);
  margin-bottom: 10px;
}
.metrics-src {
  font-weight: 500; font-size: 11.5px; color: var(--text-3, #8b929a);
  margin-left: 8px;
}
.metrics-foot {
  margin-top: 10px; font-size: 12px; line-height: 1.6;
  color: var(--text-2, #5a6169);
}
.metrics-warn {
  background: #fff6e8; color: #8a5a00;
  padding: 10px 12px; border-radius: 8px;
}

/* Score result */
.result-panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-md);
}
.result-header {
  padding: 24px 28px; color: #fff;
  display: flex; align-items: center; justify-content: space-between;
}
.result-header.tier-foundation { background: linear-gradient(135deg, #f59e0b, #f97316); }
.result-header.tier-developing { background: linear-gradient(135deg, var(--primary), #6366f1); }
.result-header.tier-advanced { background: linear-gradient(135deg, var(--success), #059669); }
.result-band-number { font-size: 52px; font-weight: 800; line-height: 1; }
.result-band-info h3 { color: #fff; font-size: 18px; }
.result-band-info p { color: rgba(255,255,255,.85); font-size: 14px; }
.result-body { padding: 28px; }
.result-section { margin-bottom: 24px; }
.result-section:last-child { margin-bottom: 0; }
.result-section h4 {
  font-size: 13px; font-weight: 700; color: var(--text-3);
  text-transform: uppercase; letter-spacing: .05em; margin-bottom: 12px;
}
.result-dims { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.result-dim-card {
  padding: 16px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface-2);
}
.result-dim-card .dim-name { font-size: 13px; color: var(--text-2); margin-bottom: 4px; }
.result-dim-card .dim-score { font-size: 24px; font-weight: 800; color: var(--text); }
.result-dim-card .dim-comment { font-size: 13px; color: var(--text-2); margin-top: 6px; line-height: 1.5; }
.result-dim-card .dim-action {
  font-size: 13px; color: var(--primary); margin-top: 8px;
  padding-top: 8px; border-top: 1px solid var(--border);
}

.result-feedback {
  background: var(--primary-light); border: 1px solid var(--primary-border);
  border-radius: var(--radius); padding: 18px;
}
.result-feedback p { font-size: 14px; line-height: 1.7; color: var(--text); }
.result-honesty {
  background: var(--surface-2); border-radius: var(--radius);
  padding: 14px 18px; margin-top: 16px;
}
.result-honesty p { font-size: 13px; color: var(--text-2); line-height: 1.6; }

/* Confidence badge */
.conf-badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px; border-radius: 50px; font-size: 12px; font-weight: 600;
}
.conf-high { background: var(--success-light); color: var(--success); }
.conf-moderate { background: var(--warning-light); color: var(--warning); }
.conf-low { background: var(--error-light); color: var(--error); }

/* ── Dashboard ──────────────────────────────────────────────────── */
.dash-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 32px; }
.dash-stat-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
}
.dash-stat-label { font-size: 13px; color: var(--text-3); margin-bottom: 4px; }
.dash-stat-value { font-size: 28px; font-weight: 800; letter-spacing: -0.02em; }
.dash-stat-sub { font-size: 12px; color: var(--text-3); margin-top: 2px; }

.dash-chart {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px; margin-bottom: 24px;
}
.chart-canvas { width: 100%; height: 200px; }

.history-table {
  width: 100%; border-collapse: collapse;
  background: var(--surface); border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid var(--border);
}
.history-table th, .history-table td {
  padding: 12px 16px; text-align: left;
  border-bottom: 1px solid var(--border); font-size: 14px;
}
.history-table th {
  background: var(--surface-2); font-weight: 600; font-size: 12px;
  text-transform: uppercase; letter-spacing: .04em; color: var(--text-2);
}
.history-table tr:last-child td { border-bottom: none; }
.history-table tr:hover td { background: var(--surface-2); }

/* ── Modal / Overlay ────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; opacity: 0; pointer-events: none;
  transition: opacity .2s;
}
.modal-overlay.show { opacity: 1; pointer-events: all; }
.modal {
  background: var(--surface); border-radius: var(--radius-lg);
  padding: 32px; max-width: 440px; width: 90%;
  box-shadow: var(--shadow-lg);
}
.modal h3 { margin-bottom: 8px; }
.modal p { color: var(--text-2); margin-bottom: 24px; font-size: 14px; }
.modal-actions { display: flex; gap: 12px; justify-content: flex-end; }
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--text-2); margin-bottom: 6px; }
.form-input {
  width: 100%; padding: 10px 14px; border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); font-size: 15px;
  transition: border-color .15s;
}
.form-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }

/* ── Toast ──────────────────────────────────────────────────────── */
.toast {
  position: fixed; bottom: 24px; right: 24px;
  padding: 14px 20px; border-radius: var(--radius);
  background: var(--text); color: #fff; font-size: 14px;
  box-shadow: var(--shadow-lg); z-index: 2000;
  transform: translateY(100px); opacity: 0;
  transition: all .3s ease;
}
.toast.show { transform: translateY(0); opacity: 1; }

/* ── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .task-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { max-width: 440px; margin: 0 auto; }
  h1 { font-size: 40px; }
  .pricing-card.popular { transform: none; }
}
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4, .steps, .pricing-grid { grid-template-columns: 1fr; }
  .app-layout { grid-template-columns: 1fr; }
  .app-sidebar { display: none; }
  .nav-links { display: none; }
  h1 { font-size: 32px; }
  h2 { font-size: 28px; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .task-grid { grid-template-columns: repeat(2, 1fr); }
  .result-dims { grid-template-columns: 1fr; }
  .dash-stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .trust-inner { gap: 24px; }
  .section { padding: 56px 0; }
}

/* ── ASR 实时转写 ─────────────────────────────────────────────── */
.asr-live {
  max-width: 560px;
  margin: 18px auto 0;
  text-align: left;
  background: var(--bg-2, #f7f8fa);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
}
.asr-live-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 6px;
}
.asr-live-text {
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-1, #1a1d21);
  min-height: 48px;
  max-height: 180px;
  overflow-y: auto;
  word-wrap: break-word;
}
.asr-interim {
  color: var(--text-3, #8b929a);
  font-style: italic;
}
.asr-hint {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--text-2, #5a6169);
  background: var(--bg-2, #f7f8fa);
  border-radius: 8px;
  padding: 8px 12px;
}
.asr-hint.asr-warn {
  background: #fff6e8;
  color: #8a5a00;
}
.asr-privacy {
  margin-top: 10px;
  font-size: 11.5px;
  line-height: 1.55;
  color: var(--text-3, #8b929a);
}

/* ── 看图题配图 ───────────────────────────────────────────────── */
.prompt-visual:has(.prompt-image) {
  background: transparent;
  padding: 0;
  font-style: normal;
}
/* <picture> 默认是 inline，里面套 display:block 的 img 会让 img 的 width:100%
   失去参照（inline 盒会收缩到内容宽度），所以这里要显式改成块级并定宽。 */
.prompt-visual picture {
  display: block;
  max-width: 720px;
}
.prompt-image {
  display: block;
  width: 100%;
  max-width: 720px;
  height: auto;
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: 0 8px 24px rgba(16, 24, 40, .10);
}
.prompt-visual-text {
  background: var(--surface-2);
  border-radius: var(--radius);
  padding: 16px;
  font-style: italic;
}
.prompt-image-note {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--text-3, #8b929a);
  font-style: normal;
  max-width: 720px;
}

/* ═══════════════════════════════════════════════════════════════════
   i18n —— 语言切换器 + 首屏防闪烁
   ═══════════════════════════════════════════════════════════════════ */

/* 字典就绪前隐藏正文，避免中文用户先看到英文再被替换（那一闪很难看）。
   index.html 与 i18n.js 各有一次 2.5s 兜底移除，确保不会白屏。 */
html.i18n-pending body { opacity: 0; }
html.i18n-ready body   { opacity: 1; transition: opacity .15s ease; }

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 2px;
  margin-right: 8px;
  background: var(--surface-2, #f1f5f9);
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 999px;
}

.lang-btn {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-2, #475569);
  border-radius: 999px;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
  font-family: inherit;
}

.lang-btn:hover { color: var(--text, #0f172a); }

.lang-btn.active {
  background: var(--surface, #fff);
  color: var(--primary, #4f46e5);
  box-shadow: 0 1px 2px rgba(15, 23, 42, .08);
}

@media (max-width: 760px) {
  .lang-switch { margin-right: 4px; }
  .lang-btn { padding: 4px 8px; font-size: 11px; }
}

/* ═══════════════════════════════════════════════════════════════════
   支付 —— 结账弹窗 + 结果提示条
   ═══════════════════════════════════════════════════════════════════ */

.pay-summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  margin-bottom: 18px;
  background: var(--surface-2);
  border-radius: 12px;
  font-size: 15px;
}
.pay-summary .pay-summary-name { font-weight: 650; }
.pay-summary .pay-summary-amount { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; }
/* 人民币参考价：明确是参考，不是承诺价 */
.pay-summary .pay-summary-cny {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-3);
  margin-top: 2px;
  text-align: right;
}

.pay-method-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-3);
  margin-bottom: 8px;
}
.pay-methods { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
.pay-method {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  background: var(--surface);
  transition: border-color .15s ease, background .15s ease;
  font-size: 15px;
}
.pay-method:hover { border-color: var(--primary); }
.pay-method.selected {
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 6%, transparent);
}
.pay-method input { accent-color: var(--primary); }
.pay-method .pay-method-badge {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-3);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 8px;
}

.pay-note {
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-3);
  margin-bottom: 10px;
}

/* 结果提示条固定在顶部，不遮挡导航 */
.pay-banner {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
}
.pay-banner.warn { background: #b45309; }
.pay-banner.error { background: #b91c1c; }
.pay-banner-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 12px 44px 12px 18px;
  position: relative;
  line-height: 1.5;
}
.pay-banner-close {
  position: absolute;
  right: 10px; top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: 0;
  color: inherit;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  opacity: .8;
  padding: 4px 8px;
}
.pay-banner-close:hover { opacity: 1; }

@media (max-width: 760px) {
  .pay-summary { flex-direction: column; align-items: flex-start; }
  .pay-summary .pay-summary-cny { text-align: left; }
}

/* 支付记录（看板） */
.pay-empty {
  font-size: 14px;
  color: var(--text-3);
  padding: 16px 0;
}
.pay-expiry {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 8%, transparent);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 12px;
}
.pay-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.pay-table th {
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-3);
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
.pay-table td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
}
.pay-status {
  display: inline-block;
  font-size: 12px;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-3);
}
.pay-status-paid { background: #dcfce7; color: #166534; }
.pay-status-pending { background: #fef3c7; color: #92400e; }
.pay-status-refunded { background: #e0e7ff; color: #3730a3; }
.pay-status-failed, .pay-status-expired { background: #fee2e2; color: #991b1b; }

@media (max-width: 760px) {
  .pay-table { font-size: 13px; }
  .pay-table th, .pay-table td { padding: 8px 6px; }
}

/* ═══════════════════════════════════════════════════════════════════
   邮箱验证码登录
   ═══════════════════════════════════════════════════════════════════ */

.auth-hint {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-2);
  background: var(--surface-2);
  border-radius: 10px;
  padding: 10px 12px;
  margin: 0 0 14px;
  word-break: break-all;   /* 邮箱可能很长，别把弹窗撑破 */
}

/* 验证码框：等宽 + 大字距，6 个数字一眼看清，也方便核对是否漏输 */
.auth-code-input {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 24px;
  letter-spacing: .32em;
  text-align: center;
  padding: 12px 8px 12px 20px;   /* 左侧多补一点，抵消字距造成的视觉偏移 */
  font-weight: 700;
}

.auth-resend {
  text-align: center;
  margin-top: 4px;
}

/* 表单字段下方的说明文字：解释「为什么还要填这一项」，
   小一号、低对比，不跟输入框抢注意力 */
.form-hint {
  margin: 6px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-3);
}

/* 文字按钮：视觉上像链接，但语义是 button（可键盘聚焦、可禁用） */
.link-btn {
  background: none;
  border: 0;
  padding: 6px 4px;
  font-size: 13px;
  color: var(--primary);
  cursor: pointer;
  border-radius: 6px;
  font-family: inherit;
}
.link-btn:hover:not(:disabled) { text-decoration: underline; }
.link-btn:disabled { color: var(--text-3); cursor: default; }
.link-btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

/* 内测提示：没配邮件服务时把验证码直接显示出来。
   用醒目但不刺眼的底色，避免被当成错误信息。 */
.auth-dev {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #fef3c7;
  color: #92400e;
  font-size: 12px;
  line-height: 1.6;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  word-break: break-all;
}

/* hidden 属性必须是硬性 display:none。
   登录弹窗的两步用 hidden 切换，如果某条更具体的规则给了 display:flex，
   那一步就会永远显示在页面上。 */
[hidden] { display: none !important; }