/*
 * 榴莲雅思 Living Gold · 句子工坊中密度视觉候选
 * 2026-07-24 [Codex]
 *
 * 仅覆盖视觉与可访问性样式，不改 DOM ID、业务函数、API、存储或路由。
 */

:root {
  --lg-canvas: #f7f2e8;
  --lg-canvas-deep: #eee6d8;
  --lg-surface: #fffdf8;
  --lg-surface-soft: #fbf7ef;
  --lg-ink: #20352b;
  --lg-ink-muted: #617066;
  --lg-green: #234b39;
  --lg-green-deep: #17382a;
  --lg-green-soft: #e8efe9;
  --lg-gold: #b88a35;
  --lg-gold-deep: #8d6824;
  --lg-gold-soft: rgba(184, 138, 53, 0.12);
  --lg-border: #ddd4c4;
  --lg-border-strong: #cabea9;
  --lg-danger: #b42318;
  --lg-focus: #d0a34b;
  --lg-shadow: 0 12px 32px rgba(35, 75, 57, 0.07);
}

body.tl-sentence-ai {
  --bg: var(--lg-canvas);
  --surface: var(--lg-surface);
  --surface-2: var(--lg-surface-soft);
  --primary: var(--lg-green);
  --primary-mid: var(--lg-green-deep);
  --text: var(--lg-ink);
  --text-muted: var(--lg-ink-muted);
  --border: var(--lg-border);
  --tl-bg-primary: var(--lg-canvas);
  --tl-bg-secondary: var(--lg-canvas-deep);
  --tl-bg-tertiary: var(--lg-surface);
  --tl-text-primary: var(--lg-ink);
  --tl-text-secondary: var(--lg-ink-muted);
  --tl-text-tertiary: #7b877f;
  --tl-border-default: var(--lg-border);
  --tl-border-strong: var(--lg-border-strong);
  --tl-accent-primary: var(--lg-green);
  --tl-accent-warm: var(--lg-gold);
  --tl-accent-soft: var(--lg-gold-soft);
  background:
    radial-gradient(circle at 8% -8%, rgba(184, 138, 53, 0.11), transparent 28rem),
    linear-gradient(180deg, #fbf7ef 0, var(--lg-canvas) 22rem);
  color: var(--lg-ink);
}

.tl-sentence-ai .tl-hero {
  max-width: 1180px;
  padding: 36px 32px 24px;
  align-items: center;
}

.tl-sentence-ai .tl-hero-copy {
  position: relative;
  padding-left: 18px;
}

.tl-sentence-ai .tl-hero-copy::before {
  content: "";
  position: absolute;
  inset: 3px auto 3px 0;
  width: 4px;
  border-radius: 99px;
  background: linear-gradient(180deg, var(--lg-gold), #d2ad60);
}

.tl-sentence-ai .tl-eyebrow {
  margin-bottom: 10px;
  color: var(--lg-gold-deep);
  font-size: 13px !important;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.tl-sentence-ai .tl-hero h1 {
  color: var(--lg-green-deep);
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 650;
  letter-spacing: -0.02em;
}

.tl-sentence-ai .tl-hero p {
  max-width: 720px;
  color: var(--lg-ink-muted);
  font-size: 15px;
  line-height: 1.72;
}

.tl-sentence-ai .tl-portal-back {
  min-height: 44px;
  border-color: var(--lg-border-strong);
  background: rgba(255, 253, 248, 0.86);
  color: var(--lg-green-deep);
  font-family: var(--tl-font-sans);
  font-size: 14px !important;
  letter-spacing: 0;
}

.tl-sentence-ai .tl-portal-back:hover {
  border-color: var(--lg-green);
  background: var(--lg-green);
  color: #fffdf8;
}

.tl-sentence-ai .tabs {
  top: 8px;
  max-width: 1180px;
  border-color: var(--lg-border);
  border-radius: 16px;
  background: rgba(255, 253, 248, 0.94);
  box-shadow: 0 8px 26px rgba(35, 75, 57, 0.06);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.tl-sentence-ai .tab-btn {
  min-height: 46px;
  color: var(--lg-ink-muted);
  font-size: 14px;
  letter-spacing: 0.01em;
}

.tl-sentence-ai .tab-btn.active {
  background: var(--lg-green);
  color: #fffdf8;
  box-shadow: inset 0 -3px 0 var(--lg-gold);
}

.tl-sentence-ai .page {
  max-width: 1180px;
  padding: 24px 32px 64px;
}

.tl-sentence-ai .card,
.tl-sentence-ai .guide-card,
.tl-sentence-ai .step-card,
.tl-sentence-ai .result-card,
.tl-sentence-ai .history-item,
.tl-sentence-ai .favorite-item,
.tl-sentence-ai .grammar-compare-card,
.tl-sentence-ai .level-panel,
.tl-sentence-ai .parser-empty,
.tl-sentence-ai .mine-section {
  border-color: var(--lg-border);
  background: var(--lg-surface);
  box-shadow: var(--lg-shadow);
}

.tl-sentence-ai .guide-card {
  border-left: 3px solid var(--lg-gold);
}

.tl-sentence-ai .guide-toggle {
  color: var(--lg-green-deep);
  font-size: 14px;
  font-weight: 650;
}

.tl-sentence-ai .guide-toggle:hover,
.tl-sentence-ai .guide-body {
  background: var(--lg-surface-soft);
}

.tl-sentence-ai textarea,
.tl-sentence-ai input {
  min-height: 44px;
  border-color: var(--lg-border) !important;
  background: var(--lg-surface-soft) !important;
  color: var(--lg-ink) !important;
  font-size: 16px !important;
}

.tl-sentence-ai textarea {
  min-height: 132px;
}

.tl-sentence-ai textarea:focus,
.tl-sentence-ai input:focus {
  border-color: var(--lg-green) !important;
  background: #fff !important;
  box-shadow: 0 0 0 3px rgba(208, 163, 75, 0.28);
}

.tl-sentence-ai button,
.tl-sentence-ai .btn,
.tl-sentence-ai .ex-btn,
.tl-sentence-ai .btn-copy,
.tl-sentence-ai .btn-tts,
.tl-sentence-ai .btn-star,
.tl-sentence-ai .fav-mini,
.tl-sentence-ai .mode-btn,
.tl-sentence-ai .para-type-btn {
  min-height: 44px;
}

.tl-sentence-ai .btn-primary {
  background: var(--lg-green);
  color: #fffdf8;
}

.tl-sentence-ai .btn-primary:hover {
  background: var(--lg-green-deep);
}

.tl-sentence-ai .btn-ghost,
.tl-sentence-ai .btn-copy,
.tl-sentence-ai .btn-tts,
.tl-sentence-ai .ex-btn,
.tl-sentence-ai .btn-star,
.tl-sentence-ai .fav-mini {
  border-color: var(--lg-border-strong);
  background: var(--lg-surface);
  color: var(--lg-ink-muted);
  font-size: 14px;
}

.tl-sentence-ai .ex-btn:hover,
.tl-sentence-ai .btn-ghost:hover,
.tl-sentence-ai .btn-copy:hover,
.tl-sentence-ai .btn-tts:hover {
  border-color: var(--lg-green);
  background: var(--lg-green-soft);
  color: var(--lg-green-deep);
}

.tl-sentence-ai .fav-mini.saved,
.tl-sentence-ai .btn-star.saved {
  border-color: rgba(184, 138, 53, 0.5);
  background: var(--lg-gold-soft);
  color: var(--lg-gold-deep);
}

.tl-sentence-ai .level-action,
.tl-sentence-ai .level-note,
.tl-sentence-ai .translator-overview,
.tl-sentence-ai .trans-overview,
.tl-sentence-ai .save-strip {
  border-color: rgba(184, 138, 53, 0.28);
  border-left-color: var(--lg-gold);
  background: var(--lg-gold-soft);
  color: var(--lg-ink-muted);
}

.tl-sentence-ai .tl-empty-feedback {
  border-color: var(--lg-border-strong);
  background:
    linear-gradient(135deg, rgba(184, 138, 53, 0.08), transparent 56%),
    var(--lg-surface);
}

.tl-sentence-ai .tl-empty-feedback strong,
.tl-sentence-ai .section-title,
.tl-sentence-ai .result-label,
.tl-sentence-ai .step-label,
.tl-sentence-ai .pattern-title {
  color: var(--lg-green-deep);
}

.tl-sentence-ai .pwa-update-banner {
  border-color: rgba(184, 138, 53, 0.5);
  background: rgba(255, 253, 248, 0.98);
  color: var(--lg-green-deep);
}

.tl-sentence-ai #global-refresh-btn {
  width: 44px !important;
  height: 44px !important;
}

.tl-sentence-ai footer {
  color: #738077;
}

.tl-sentence-ai footer span {
  color: var(--lg-gold-deep);
}

.tl-sentence-ai :where(
  button,
  a,
  input,
  textarea,
  [tabindex]
):focus-visible {
  outline: 3px solid var(--lg-focus);
  outline-offset: 3px;
}

@media (max-width: 900px) {
  .tl-sentence-ai .tl-hero {
    padding: 28px 20px 18px;
  }

  .tl-sentence-ai .tabs {
    width: calc(100% - 32px);
  }

  .tl-sentence-ai .page {
    padding: 18px 16px 52px;
  }
}

@media (max-width: 540px) {
  .tl-sentence-ai .tl-hero {
    gap: 14px;
    padding: 18px 16px 14px;
  }

  .tl-sentence-ai .tl-hero-copy {
    padding-left: 14px;
  }

  .tl-sentence-ai .tl-eyebrow {
    margin-bottom: 6px;
    font-size: 12px !important;
  }

  .tl-sentence-ai .tl-hero h1 {
    font-size: 30px;
  }

  .tl-sentence-ai .tl-hero p {
    margin-top: 6px;
    font-size: 14px;
    line-height: 1.58;
  }

  .tl-sentence-ai .tl-portal-back {
    align-self: stretch;
  }

  .tl-sentence-ai .tabs {
    top: 4px;
    width: calc(100% - 24px);
    border-radius: 14px;
  }

  .tl-sentence-ai .tab-btn {
    min-width: 88px;
    min-height: 46px;
    padding-inline: 10px;
    font-size: 14px;
  }

  .tl-sentence-ai .page {
    padding: 14px 12px 48px;
  }

  .tl-sentence-ai .card {
    padding: 16px;
  }

  .tl-sentence-ai .btn-row {
    gap: 8px;
  }

  .tl-sentence-ai .guide-toggle {
    padding-inline: 16px;
  }

  .tl-sentence-ai .mine-grid {
    grid-template-columns: 1fr;
  }

  .tl-sentence-ai #global-refresh-btn {
    top: 8px !important;
    right: 8px !important;
    width: 44px !important;
    height: 44px !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tl-sentence-ai *,
  .tl-sentence-ai *::before,
  .tl-sentence-ai *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-contrast: more) {
  .tl-sentence-ai .card,
  .tl-sentence-ai .guide-card,
  .tl-sentence-ai .step-card,
  .tl-sentence-ai textarea,
  .tl-sentence-ai input {
    border-color: #6d766f !important;
  }
}