/* 美食电子书在线阅读站 - 全局样式
   暗色默认 + 明暗主题切换（CSS 变量） */
:root {
  --bg: #14171c;
  --bg-soft: #1c2027;
  --card: #20242c;
  --border: #2e333d;
  --text: #e8eaed;
  --text-dim: #9aa3ad;
  --accent: #e8912d;
  --accent-soft: rgba(232, 145, 45, 0.15);
  --shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
  --radius: 12px;
}
[data-theme="light"] {
  --bg: #f5f6f8;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --border: #e3e6ea;
  --text: #24282e;
  --text-dim: #6b7280;
  --accent: #c96f1a;
  --accent-soft: rgba(201, 111, 26, 0.12);
  --shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
}

a { color: inherit; text-decoration: none; }

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(6px);
}
.topbar .logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
}
.topbar .nav a {
  margin-right: 14px;
  color: var(--text-dim);
  font-weight: 600;
}
.topbar .nav a.active, .topbar .nav a:hover { color: var(--accent); }

.search-box {
  flex: 1;
  max-width: 420px;
  margin-left: auto;
}
.search-box input {
  width: 100%;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  font-size: 13px;
}
.search-box input:focus { border-color: var(--accent); }

.icon-btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  border-radius: 20px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 13px;
  white-space: nowrap;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- 分类标签 ---------- */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px 20px 0;
}
.tag {
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-soft);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 13px;
}
.tag:hover { border-color: var(--accent); color: var(--accent); }
.tag.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ---------- 卡片网格 ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
  padding: 16px 20px 40px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.45);
}
.card .cover {
  aspect-ratio: 3 / 4;
  width: 100%;
  object-fit: cover;
  display: block;
  background: var(--bg-soft);
}
.card .cover.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 40px;
}
.card .meta { padding: 8px 10px 10px; }
.card .name {
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 36px;
}
.card .sub {
  margin-top: 4px;
  color: var(--text-dim);
  font-size: 12px;
  display: flex;
  gap: 8px;
}

/* 视频卡片 */
.video-card .cover {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #3a2b16, #6b4a1c);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #f5c66b;
  font-size: 42px;
}

/* 分区标题 */
.section-title {
  padding: 20px 20px 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--accent);
  border-bottom: 2px solid var(--border);
  margin: 0 20px 14px;
  max-width: calc(100% - 40px);
}

.empty { padding: 40px; text-align: center; color: var(--text-dim); }

/* ---------- 阅读页 ---------- */
.reader-toolbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.reader-toolbar .grow { flex: 1; }
.reader-toolbar input[type="number"] {
  width: 56px;
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
}
.reader-toolbar input[type="text"] {
  width: 160px;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
}
.reader-toolbar select, .reader-toolbar button {
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
}
.reader-toolbar button:hover { border-color: var(--accent); color: var(--accent); }

.reader-viewport {
  padding: 64px 12px 30px;
  min-height: 100vh;
  overflow: auto;
  background: #1a1d22;
}
[data-theme="light"] .reader-viewport { background: #dfe3e8; }
.pages {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  padding: 14px;
}
.page-slot {
  position: relative;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.55);
  border-radius: 4px;
  overflow: hidden;
  background: #fff;
}
.page-slot canvas { display: block; max-width: 100% !important; height: auto !important; }
.page-slot .page-label {
  position: absolute;
  bottom: 6px;
  right: 10px;
  color: #666;
  font-size: 12px;
  background: rgba(255, 255, 255, 0.85);
  padding: 1px 6px;
  border-radius: 8px;
}
.textLayer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  line-height: 1;
  text-align: initial;
}
.textLayer span {
  position: absolute;
  color: transparent;
  white-space: pre;
  transform-origin: 0 0;
  cursor: text;
}
.textLayer span.hit { background: rgba(255, 235, 59, 0.45); }
.textLayer ::selection { background: rgba(0, 0, 255, 0.2); }

/* ---------- 视频弹层 ---------- */
.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.82);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-mask.open { display: flex; }
.modal-box {
  width: min(960px, 100%);
  background: #000;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: #20242c;
  color: #e8eaed;
}
.modal-head .m-title { font-weight: 600; font-size: 14px; }
.modal-close {
  border: none;
  background: transparent;
  color: #9aa3ad;
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
}
.modal-close:hover { color: #e8eaed; }
.modal-body video { display: block; width: 100%; max-height: 80vh; }

/* ---------- 页脚 ---------- */
.footer {
  padding: 24px 20px;
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  border-top: 1px solid var(--border);
}

/* ---------- 响应式 ---------- */

/* 平板（约 768-1024px） */
@media (max-width: 1024px) {
  .topbar { gap: 8px; padding: 10px 16px; }
  .topbar .logo { font-size: 16px; }
  .search-box { max-width: 300px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); gap: 14px; padding: 14px 16px 36px; }
  .section-title { margin: 0 16px 12px; padding: 18px 0 6px; max-width: calc(100% - 32px); }
  .reader-toolbar { padding: 8px 10px; gap: 8px; }
  .pages { gap: 10px; padding: 10px; }
  .reader-viewport { padding: 56px 8px 24px; }
  .modal-mask { padding: 16px; }
}

/* 手机（约 360-640px） */
@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; padding: 10px 12px; gap: 6px; }
  .topbar .logo { font-size: 15px; overflow-wrap: anywhere; white-space: normal; line-height: 1.3; }
  .topbar .nav { display: flex; flex-wrap: wrap; gap: 4px 10px; }
  .topbar .nav a { margin-right: 0; font-size: 13px; }
  .search-box { order: 3; max-width: 100%; flex-basis: 100%; margin-left: 0; }
  .search-box input { padding: 7px 12px; }
  .icon-btn { padding: 5px 10px; font-size: 12px; }
  .tags { padding: 10px 12px 0; gap: 6px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 10px; padding: 12px; }
  .section-title { margin: 0 12px 10px; padding: 16px 0 6px; max-width: calc(100% - 24px); font-size: 15px; }
  .card .name { font-size: 12px; min-height: 34px; }
  .footer { padding: 16px 12px; font-size: 11px; }
  .reader-toolbar { gap: 6px; padding: 6px 8px; }
  .reader-toolbar input[type="text"] { width: 120px; }
  .reader-toolbar input[type="number"] { width: 52px; }
  .reader-toolbar button { font-size: 12px; padding: 4px 8px; }
  .reader-viewport { padding: 64px 6px 18px; }
  .pages { gap: 8px; padding: 6px; }
  .page-slot .page-label { font-size: 11px; }
  .modal-mask { padding: 8px; }
  .modal-box { border-radius: 8px; }
  .modal-head { padding: 8px 10px; }
  .modal-head .m-title { max-width: 72%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .modal-body video { max-height: 62vh; }
  .empty { padding: 24px; }
}

/* 小屏手机（约 360-420px） */
@media (max-width: 420px) {
  .grid { grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 8px; padding: 10px; }
  .card .meta { padding: 6px 8px 8px; }
  .card .name { font-size: 11px; min-height: 31px; }
  .card .sub { font-size: 11px; gap: 6px; }
  .card .cover.placeholder { font-size: 32px; }
  .video-card .cover { font-size: 32px; }
  .reader-toolbar input[type="text"] { width: 96px; }
  .reader-toolbar input[type="number"] { width: 48px; }
  .search-box input { font-size: 12px; }
}