/* ============ 晨读网站样式 ============ */
:root {
  --primary: #2f6f4f;
  --primary-dark: #24573e;
  --accent: #e8a33d;
  --bg: #f7f5f0;
  --card: #ffffff;
  --text: #2a2a26;
  --muted: #8a8a80;
  --border: #e3e0d6;
  --danger: #c0392b;
  --radius: 12px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.7;
  min-height: 100vh; display: flex; flex-direction: column;
}
main.container { flex: 1; width: 100%; }
.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 26px; margin-bottom: 8px; }
h1 small, h2 small { font-size: 0.55em; color: var(--muted); font-weight: normal; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.empty { color: var(--muted); padding: 24px 0; text-align: center; }
code { background: #f0ede4; padding: 2px 6px; border-radius: 4px; font-size: 0.9em; }

/* ---------- header ---------- */
.site-header {
  background: #fff; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { font-size: 20px; font-weight: 700; color: var(--text); display: flex; align-items: center; gap: 8px; }
.brand:hover { text-decoration: none; }
.brand-mark { font-size: 24px; }
.site-nav { display: flex; align-items: center; gap: 16px; font-size: 15px; }
.site-nav a { color: var(--text); }
.nav-user { color: var(--muted); font-size: 14px; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 20px 0 28px; color: var(--muted); font-size: 14px; text-align: center; }

/* ---------- hero ---------- */
.hero { text-align: center; padding: 56px 0 32px; }
.hero h1 { font-size: 34px; letter-spacing: 2px; }
.hero-sub { color: var(--accent); font-size: 0.42em; letter-spacing: 4px; vertical-align: middle; margin-left: 10px; }
.hero-desc { margin-top: 14px; color: #555; }

/* ---------- book grid ---------- */
.book-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; padding-bottom: 40px; }
.book-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; display: flex; gap: 16px; color: var(--text);
  transition: box-shadow .2s, transform .2s;
}
.book-card:hover { box-shadow: 0 6px 20px rgba(0,0,0,.08); transform: translateY(-2px); text-decoration: none; }
.book-cover {
  width: 64px; height: 88px; flex: none; border-radius: 6px;
  background: linear-gradient(145deg, var(--primary), #1d4432);
  color: #fff; font-size: 30px; font-family: Georgia, serif;
  display: flex; align-items: center; justify-content: center;
}
.book-info h2 { font-size: 18px; }
.book-author { color: var(--muted); font-size: 13px; }
.book-desc { font-size: 13px; color: #666; margin: 6px 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.book-meta { font-size: 13px; color: var(--primary); }

/* ---------- page head / badges ---------- */
.page-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; padding: 28px 0 8px; }
.access-badge { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.badge { padding: 4px 12px; border-radius: 999px; font-size: 13px; }
.badge-admin { background: #fdeeee; color: var(--danger); }
.badge-ok { background: #e8f5ee; color: var(--primary); }
.badge-free { background: #fdf3e0; color: #9a6a10; }
.tag { font-size: 12px; padding: 1px 8px; border-radius: 999px; background: #f0ede4; color: #666; margin-left: 6px; }
.tag-free { background: #fdf3e0; color: #9a6a10; }
.tag-ok { background: #e8f5ee; color: var(--primary); }
.tag-draft { background: #eee; color: #999; }

/* ---------- chapter & segments ---------- */
.chapter { margin: 28px 0; }
.chapter-title { font-size: 20px; border-left: 4px solid var(--accent); padding-left: 12px; margin-bottom: 12px; }
.segment-list { display: flex; flex-direction: column; gap: 12px; }
.segment-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 18px; }
.segment-item.locked { background: #faf9f5; border-style: dashed; }
.segment-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.seg-no { font-weight: 700; color: var(--primary); min-width: 64px; }
.seg-title { flex: 1; min-width: 140px; }
.seg-duration { font-size: 13px; min-width: 40px; text-align: right; }
.seg-actions { display: flex; gap: 8px; }
.lock-icon { font-size: 16px; }
.segment-player { margin-top: 10px; }
.segment-player audio, .main-audio { width: 100%; height: 40px; }
.segment-locked-tip { margin-top: 8px; font-size: 13.5px; color: var(--muted); }

/* ---------- reading pages ---------- */
.breadcrumbs { padding: 20px 0 6px; color: var(--muted); font-size: 14px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.segment-detail { padding-bottom: 48px; }
.segment-detail-head { margin-bottom: 16px; }
.main-audio { margin: 18px 0 26px; }
.reading-text {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 30px; margin-bottom: 18px; font-size: 18px; line-height: 2.1; text-align: justify;
}
.reading-text h3 { font-size: 14px; color: var(--muted); margin-bottom: 10px; letter-spacing: 1px; }
.reading-text.en { font-family: Georgia, "Times New Roman", serif; }
.reading-text.cn { font-size: 15.5px; color: #555; line-height: 1.9; }
.reading-text.vocab { background: #fbfaf5; font-size: 15px; }
.reading-text.vocab h3 { color: #9a6a10; }
.vocab-list { list-style: none; }
.vocab-list li { padding: 4px 0; border-bottom: 1px dashed #e8e4d8; line-height: 1.7; }
.vocab-list li:last-child { border-bottom: none; }
.segment-detail-actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 22px 0; }
.qr-box { display: flex; gap: 20px; align-items: center; background: #fbfaf6; border: 1px dashed var(--border); border-radius: var(--radius); padding: 20px; }
.qr-svg svg { width: 140px; height: 140px; }
.qr-desc h3 { font-size: 16px; }
.qr-desc p { font-size: 14px; color: #666; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block; border: 1px solid transparent; border-radius: 8px;
  padding: 9px 18px; font-size: 15px; cursor: pointer; line-height: 1.4;
  transition: background .15s, color .15s; text-align: center;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-danger { background: #fff; border-color: #e6b3ac; color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-sm { padding: 4px 12px; font-size: 13px; border-radius: 6px; }
.btn-block { width: 100%; }
.btn-row { display: flex; gap: 10px; margin-top: 16px; }
.btn-row.center { justify-content: center; }
.inline-form { display: inline; }

/* ---------- cards / forms ---------- */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin: 18px 0; }
.card h3 { margin-bottom: 14px; }
.auth-card { max-width: 420px; margin: 48px auto; }
.auth-card h1 { text-align: center; margin-bottom: 18px; }
form label { display: block; margin-bottom: 14px; font-size: 14px; color: #555; }
form label input, form label select, form label textarea {
  display: block; width: 100%; margin-top: 5px; padding: 9px 12px; font-size: 15px;
  border: 1px solid var(--border); border-radius: 8px; background: #fff; color: var(--text);
  font-family: inherit;
}
form label textarea { resize: vertical; }
form label input:focus, form label select:focus, form label textarea:focus { outline: 2px solid #bcd9c8; border-color: var(--primary); }
label.check { display: flex; align-items: center; gap: 8px; }
label.check input { width: auto; margin: 0; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 18px; }
.form-grid .span2 { grid-column: span 2; }
.form-grid .check, .form-grid div { align-self: end; padding-bottom: 12px; }
.form-grid.compact { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.form-grid.compact label { margin: 0; }
.form-grid.compact input { width: auto; display: inline-block; margin: 0; padding: 6px 10px; }
.form-error { background: #fdeeee; color: var(--danger); padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 14px; }
.danger-zone { margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--border); }

/* ---------- locked page ---------- */
.locked-page { max-width: 460px; margin: 56px auto; text-align: center; }
.lock-big { font-size: 52px; margin-bottom: 12px; }
.locked-page h1 { font-size: 22px; }
.locked-page p { color: #666; margin: 8px 0; }

/* ---------- tables ---------- */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { padding: 9px 10px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.table th { color: var(--muted); font-weight: 600; white-space: nowrap; }
.row-actions { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

/* ---------- admin ---------- */
.admin-nav { display: flex; gap: 6px; margin: 22px 0 6px; border-bottom: 2px solid var(--border); }
.admin-nav a { padding: 8px 16px; color: var(--text); border-radius: 8px 8px 0 0; font-size: 15px; margin-bottom: -2px; border-bottom: 2px solid transparent; }
.admin-nav a.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.admin-nav a:hover { text-decoration: none; background: #f2f0e9; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 14px; margin-top: 18px; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; text-align: center; }
.stat-card b { font-size: 30px; color: var(--primary); display: block; }
.stat-card span { font-size: 13px; color: var(--muted); }
.plain-list { padding-left: 18px; color: #555; }
.plain-list li { margin: 6px 0; }
.chapter-admin { border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin: 16px 0; background: #fdfcf9; }
.chapter-admin-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.add-segment, .add-chapter { margin-top: 12px; }
.add-segment summary, .add-chapter summary { cursor: pointer; color: var(--primary); font-weight: 600; padding: 8px 0; }
.add-segment form, .add-chapter form { margin-top: 12px; }

/* ---------- 批量上传 ---------- */
.batch-row { border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px; margin: 10px 0; background: #fdfcf9; }
.batch-row-head { margin-bottom: 8px; }
.batch-grid textarea { font-size: 14px; }

/* ---------- play page (扫码) ---------- */
.play-page { background: #f2f0ea; }
.play-wrap { max-width: 640px; margin: 0 auto; padding: 28px 18px 48px; }
.play-brand { color: var(--muted); font-size: 13px; letter-spacing: 1px; }
.play-head h1 { font-size: 24px; margin-top: 6px; }
.play-head h1 small { font-size: 0.5em; color: var(--muted); font-weight: normal; }
.play-chapter { color: #666; margin: 6px 0 18px; }
.play-page .main-audio { margin: 0 0 20px; }
.play-page .reading-text { padding: 20px 22px; font-size: 17px; }
.cn-details summary { cursor: pointer; color: var(--primary); padding: 10px 0; }
.play-foot { margin-top: 28px; color: var(--muted); font-size: 14px; text-align: center; }

/* ---------- responsive ---------- */
@media (max-width: 640px) {
  .header-inner { height: auto; flex-direction: column; gap: 8px; padding: 12px 0; }
  .hero h1 { font-size: 26px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .span2 { grid-column: span 1; }
  .reading-text { padding: 18px; font-size: 16.5px; }
  .qr-box { flex-direction: column; text-align: center; }
  .seg-no { min-width: auto; }
  .table { display: block; overflow-x: auto; }
}