:root {
  --bg: #1a202c;
  --panel: #2d3748;
  --text: #e2e8f0;
  --muted: #a0aec0;
  --accent: #0bc5ea;
  --up: #48bb78;
  --down: #ef4444;
  --border: rgba(255, 255, 255, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans TC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.page {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 1.25rem 2rem;
}

.header h1 {
  margin: 0 0 0.35rem;
  font-weight: 800;
}

.hint {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 1rem;
}

.sync-status {
  font-size: 0.78rem;
  color: #718096;
  margin: -0.35rem 0 0.85rem;
}

.grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 1.25rem;
  align-items: stretch;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .chart-panel {
    order: -1;
  }
}

.panel h2 {
  font-size: 1.1rem;
  margin: 0 0 0.75rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.95rem;
}

.msg {
  background: rgba(49, 130, 206, 0.2);
  border: 1px solid rgba(49, 130, 206, 0.45);
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.toolbar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.btn {
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1rem;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn-primary {
  background: #0d9488;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn-primary:hover {
  background: #14b8a6;
}

.btn-secondary {
  background: #334155;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.btn-secondary:hover {
  background: #475569;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.summary-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.summary-box {
  background: var(--panel);
  padding: 1rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  border-left: 4px solid #3182ce;
}

.summary-box .update-time {
  font-size: 0.75rem;
  color: #718096;
  margin-bottom: 0.5rem;
}

.summary-box h4 {
  color: #63b3ed;
  margin: 0.8rem 0 0.4rem;
  font-size: 1rem;
}

.summary-box .md-body {
  font-size: 0.95rem;
}

.summary-box .md-body p {
  margin: 0.35rem 0;
}

.keyword-search {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.9rem;
}

.keyword-input {
  width: 100%;
  background: #1f2937;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  color: #fff;
  padding: 0.6rem 0.7rem;
  font-size: 0.95rem;
}

.keyword-input:focus {
  outline: none;
  border-color: #38bdf8;
}

.keyword-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.65rem;
}

.keyword-status {
  color: var(--muted);
  font-size: 0.82rem;
  margin: 0.7rem 0 0.45rem;
}

.keyword-expandable {
  margin-top: 0.45rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.35);
}

.keyword-help {
  font-size: 0.82rem;
  color: #cbd5e0;
  padding: 0.55rem 0.65rem;
  margin: 0;
}

.keyword-help p {
  margin: 0.2rem 0;
}

.preset-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding: 0.55rem 0.65rem 0.65rem;
}

.chip-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}

.chip-btn {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: #334155;
  color: #fff;
  border-radius: 999px;
  padding: 0.35rem 0.65rem;
  font-size: 0.82rem;
  cursor: pointer;
}

.chip-btn:hover {
  background: #475569;
}

.chip-btn.active {
  background: #0d9488;
  border-color: rgba(255, 255, 255, 0.35);
}

.chip-del-btn {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: #1f2937;
  color: #cbd5e0;
  border-radius: 999px;
  width: 20px;
  height: 20px;
  line-height: 18px;
  padding: 0;
  font-size: 0.75rem;
  cursor: pointer;
}

.chip-del-btn:hover {
  background: #7f1d1d;
  color: #fff;
}

.empty {
  color: var(--muted);
  font-size: 0.9rem;
}

.footer {
  text-align: center;
  color: #4a5568;
  font-size: 0.7rem;
  margin-top: 2rem;
}

code {
  font-size: 0.85em;
  background: rgba(0, 0, 0, 0.25);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

a.news-ext-link {
  color: var(--muted);
  text-decoration: none;
  margin-left: 0.15rem;
}

a.news-ext-link:hover {
  color: #63b3ed;
}

.raw-news-panel {
  margin-top: 1.25rem;
}

.raw-news-meta {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

.raw-news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-height: min(70vh, 520px);
  overflow-y: auto;
}

.raw-news-item {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.65rem 0.85rem;
  border-left: 3px solid #3182ce;
}

.raw-news-item a.title-link {
  color: #e2e8f0;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
  line-height: 1.35;
}

.raw-news-item a.title-link:hover {
  color: #63b3ed;
  text-decoration: underline;
}

.raw-news-meta-line {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 0.35rem;
}

.raw-news-snippet {
  font-size: 0.82rem;
  color: #cbd5e0;
  margin-top: 0.4rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.kw-hit {
  background: #facc15;
  color: #1f2937;
  border-radius: 3px;
  padding: 0 0.12em;
  font-weight: 700;
}

/* -------------------------------------------------------------------------- */
/* 手機版（≤768px）：觸控目標、輸入框 16px 防 iOS 縮放、版面收斂              */
/* 對應語意：.page/.panel ≈ container/section/card；.keyword-* ≈ 搜尋區       */
/* -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .page {
    width: 95%;
    max-width: none;
    margin: 0 auto;
    padding: 0.75rem 0.5rem 1.5rem;
  }

  .panel,
  .summary-box {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding: 0.85rem !important;
  }

  .header h1 {
    font-size: 1.5rem !important;
    text-align: center;
    line-height: 1.25;
  }

  .panel h2 {
    font-size: 1rem;
    text-align: center;
  }

  /* 關鍵字區：直向堆疊 + 輸入 16px、按鈕 2×2 網格 */
  .keyword-search {
    display: flex;
    flex-direction: column;
    padding: 0.75rem !important;
  }

  input[type="text"],
  input[type="search"] {
    font-size: 16px !important; /* 防止 iOS 聚焦時整頁縮放 */
  }

  .keyword-input {
    width: 100% !important;
    margin-bottom: 10px;
    font-size: 16px !important;
    min-height: 44px;
    padding: 0.65rem 0.75rem;
  }

  .keyword-actions {
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 0.5rem;
  }

  .keyword-actions .btn {
    width: 100% !important;
    margin: 0 !important;
    min-height: 44px;
    padding: 10px 8px !important;
    font-size: 0.9rem;
  }

  /* 最新新聞工具列：兩欄網格 */
  .toolbar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 0.65rem;
  }

  .toolbar .btn {
    width: 100%;
    min-height: 44px;
    padding: 10px 8px;
  }

  .msg {
    font-size: 0.88rem;
    padding: 0.55rem 0.7rem;
  }

  .summary-box .md-body {
    font-size: 0.9rem;
  }

  /* 最新抓取列表（對應 .news-item / .news-title / .news-meta 語意） */
  .raw-news-item {
    padding: 12px 10px;
    border-bottom: 1px solid #444;
    border-radius: 8px;
  }

  .raw-news-list {
    max-height: min(60vh, 480px);
  }

  .raw-news-item .title-link {
    font-size: 1.1rem !important;
    line-height: 1.5;
    display: block;
  }

  .raw-news-meta-line {
    font-size: 0.85rem;
    color: #aaa;
    display: block;
    margin-bottom: 5px;
    margin-top: 0.4rem;
  }

  .preset-keywords {
    gap: 0.35rem;
  }

  .chip-btn {
    min-height: 40px;
    padding: 0.45rem 0.65rem;
    font-size: 0.8rem;
  }

  .chip-del-btn {
    min-width: 44px;
    min-height: 44px;
    width: 44px;
    height: 44px;
    line-height: 1;
  }

  /* 若日後在 HTML 加上 class="icon-decoration" 可隱藏裝飾 */
  .icon-decoration {
    display: none;
  }
}