/* ============================================================
   course-resource-portal 课程版·资源门户风 模板包样式
   - 自包含零第三方库，纯原生 CSS
   - PC / 平板 / 手机三端响应式（1200 / 992 / 768 / 480 断点）
   - 配色：藏青主色 + 青绿点缀（学术资源门户气质）
   ============================================================ */
:root {
  --crp-primary: #1e3a8a;
  --crp-primary-light: #274ea8;
  --crp-accent: #0d9488;
  --crp-accent-light: #14b8a6;
  --crp-bg: #f5f7fa;
  --crp-card: #ffffff;
  --crp-text: #1f2937;
  --crp-text-sub: #6b7280;
  --crp-line: #e5e7eb;
  --crp-radius: 10px;
  --crp-shadow: 0 2px 12px rgba(30, 58, 138, .08);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  background: var(--crp-bg); color: var(--crp-text); font-size: 15px; line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--crp-accent); }
img { max-width: 100%; display: block; }
.crp-container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* ---------- 头部 ---------- */
.crp-header { background: #fff; border-bottom: 1px solid var(--crp-line); }
.crp-header-inner { display: flex; align-items: center; gap: 24px; height: 72px; }
.crp-logo { display: flex; align-items: center; gap: 10px; font-size: 21px; font-weight: 700; color: var(--crp-primary); white-space: nowrap; }
.crp-logo img { height: 40px; width: auto; }
.crp-logo .crp-badge { font-size: 12px; font-weight: 400; color: #fff; background: var(--crp-accent); border-radius: 4px; padding: 1px 8px; margin-left: 2px; }
.crp-nav { flex: 1; }
.crp-nav ul { display: flex; list-style: none; gap: 4px; flex-wrap: wrap; }
.crp-nav a { display: block; padding: 8px 14px; border-radius: 6px; font-size: 15px; color: var(--crp-text); }
.crp-nav a:hover, .crp-nav a.on { background: rgba(13, 148, 136, .08); color: var(--crp-accent); font-weight: 600; }
.crp-header-tools { display: flex; align-items: center; gap: 10px; }
.crp-portal-link { display: inline-block; padding: 7px 14px; border: 1px solid var(--crp-accent); color: var(--crp-accent); border-radius: 999px; font-size: 13px; }
.crp-portal-link:hover { background: var(--crp-accent); color: #fff; }

/* ---------- 会员登录态（对齐 snippets/member-state.ftl 常规挂点） ---------- */
.crp-member { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.crp-member a { padding: 6px 14px; border-radius: 6px; }
.crp-member .btn-login { background: var(--crp-primary); color: #fff; }
.crp-member .btn-reg { border: 1px solid var(--crp-primary); color: var(--crp-primary); }
.crp-member .crp-user { color: var(--crp-text-sub); }

/* ---------- Hero 检索横幅 ---------- */
.crp-hero { background: linear-gradient(120deg, #1e3a8a 0%, #274ea8 55%, #0d9488 130%); color: #fff; padding: 58px 0 66px; }
.crp-hero h1 { font-size: 32px; letter-spacing: 1px; }
.crp-hero p { margin-top: 10px; font-size: 15px; opacity: .85; max-width: 640px; }
.crp-searchbar { margin-top: 26px; display: flex; max-width: 620px; background: #fff; border-radius: 999px; padding: 5px 6px 5px 22px; align-items: center; }
.crp-searchbar input { flex: 1; border: 0; outline: 0; font-size: 15px; color: var(--crp-text); background: transparent; }
.crp-searchbar button { border: 0; background: var(--crp-accent); color: #fff; padding: 10px 26px; border-radius: 999px; font-size: 15px; cursor: pointer; }
.crp-searchbar button:hover { background: var(--crp-accent-light); }
.crp-hero-tags { margin-top: 16px; font-size: 13px; opacity: .9; }
.crp-hero-tags a { display: inline-block; margin-right: 12px; opacity: .9; }
.crp-hero-tags a:hover { opacity: 1; text-decoration: underline; }

/* ---------- 通用区块 ---------- */
.crp-section { padding: 42px 0 8px; }
.crp-section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 20px; }
.crp-section-head h2 { font-size: 22px; color: var(--crp-primary); padding-left: 12px; border-left: 4px solid var(--crp-accent); line-height: 1.3; }
.crp-section-head .more { font-size: 14px; color: var(--crp-text-sub); }
.crp-section-head .more:hover { color: var(--crp-accent); }

/* 置顶横条卡 */
.crp-pin-strip { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-bottom: 26px; }
.crp-pin-card { position: relative; display: flex; gap: 16px; background: linear-gradient(115deg, #eff6ff, #f0fdfa); border: 1px solid #dbeafe; border-radius: var(--crp-radius); padding: 18px 20px; }
.crp-pin-card .pin-flag { position: absolute; top: 0; left: 0; background: var(--crp-accent); color: #fff; font-size: 12px; padding: 2px 10px; border-radius: 0 0 8px 0; }
.crp-pin-card h3 { font-size: 17px; margin-bottom: 6px; }
.crp-pin-card p { color: var(--crp-text-sub); font-size: 13px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 课程卡网格 */
.crp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.crp-card { background: var(--crp-card); border-radius: var(--crp-radius); overflow: hidden; box-shadow: var(--crp-shadow); transition: transform .18s ease, box-shadow .18s ease; display: flex; flex-direction: column; }
.crp-card:hover { transform: translateY(-4px); box-shadow: 0 8px 22px rgba(30, 58, 138, .14); }
.crp-card-thumb { position: relative; aspect-ratio: 16 / 9; background: linear-gradient(135deg, #1e3a8a 0%, #0d9488 100%); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,.92); }
.crp-card-thumb img { width: 100%; height: 100%; object-fit: cover; }
.crp-card-thumb .crp-ct { font-size: 34px; font-weight: 700; letter-spacing: 2px; }
.crp-card-body { padding: 14px 16px 16px; flex: 1; display: flex; flex-direction: column; }
.crp-card-body h3 { font-size: 16px; line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 2.9em; }
.crp-card-body h3 a:hover { color: var(--crp-accent); }
.crp-card-meta { margin-top: auto; padding-top: 10px; display: flex; align-items: center; gap: 12px; font-size: 12.5px; color: var(--crp-text-sub); flex-wrap: wrap; }
.crp-tag { display: inline-block; padding: 1px 8px; border-radius: 4px; font-size: 12px; }
.crp-tag-free { background: #ecfdf5; color: #059669; border: 1px solid #a7f3d0; }
.crp-tag-paid { background: #fff7ed; color: #d97706; border: 1px solid #fed7aa; }
.crp-tag-type { background: #eff6ff; color: var(--crp-primary); border: 1px solid #dbeafe; }

/* 双栏列表（图文） */
.crp-two-col { display: grid; grid-template-columns: 3fr 2fr; gap: 28px; align-items: start; }
.crp-list { background: #fff; border-radius: var(--crp-radius); box-shadow: var(--crp-shadow); overflow: hidden; }
.crp-list li { list-style: none; display: flex; align-items: center; gap: 12px; padding: 13px 18px; border-bottom: 1px dashed var(--crp-line); }
.crp-list li:last-child { border-bottom: 0; }
.crp-list .t { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.crp-list .d { color: var(--crp-text-sub); font-size: 13px; white-space: nowrap; }
.crp-hot-list { background: #fff; border-radius: var(--crp-radius); box-shadow: var(--crp-shadow); padding: 8px 0; }
.crp-hot-list li { list-style: none; display: flex; gap: 12px; align-items: center; padding: 11px 18px; }
.crp-hot-list .no { width: 22px; height: 22px; border-radius: 5px; background: #eef2f7; color: var(--crp-primary); font-size: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.crp-hot-list li:nth-child(-n+3) .no { background: var(--crp-accent); color: #fff; }
.crp-hot-list .t { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.crp-hot-list .v { color: var(--crp-text-sub); font-size: 12.5px; }

/* 站点目录入口 */
.crp-site-portal { background: linear-gradient(120deg, #0f2a63, #123c74); border-radius: 14px; color: #fff; padding: 34px 36px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.crp-site-portal h2 { font-size: 22px; }
.crp-site-portal p { margin-top: 8px; opacity: .8; font-size: 14px; max-width: 560px; }
.crp-site-portal .go { background: #fff; color: var(--crp-primary); padding: 11px 28px; border-radius: 999px; font-size: 15px; font-weight: 600; white-space: nowrap; }
.crp-site-portal .go:hover { background: #e0f2f1; }

/* ---------- 分页 ---------- */
.crp-pagination { display: flex; justify-content: center; gap: 8px; margin: 30px 0 10px; flex-wrap: wrap; }
.crp-pagination a, .crp-pagination span { padding: 7px 14px; border-radius: 6px; background: #fff; border: 1px solid var(--crp-line); font-size: 14px; color: var(--crp-text); }
.crp-pagination .on { background: var(--crp-primary); border-color: var(--crp-primary); color: #fff; }

/* ---------- 详情页 ---------- */
.crp-crumb { padding: 18px 0 0; font-size: 13.5px; color: var(--crp-text-sub); }
.crp-crumb a:hover { color: var(--crp-accent); }
.crp-detail { background: #fff; border-radius: var(--crp-radius); box-shadow: var(--crp-shadow); padding: 34px 38px; margin-top: 14px; }
.crp-detail h1.title { font-size: 24px; color: var(--crp-primary); line-height: 1.4; }
.crp-detail .meta { margin: 12px 0 22px; color: var(--crp-text-sub); font-size: 13px; display: flex; gap: 18px; flex-wrap: wrap; }
.crp-detail .content { font-size: 15.5px; line-height: 1.9; word-break: break-word; }
.crp-detail .content img { margin: 10px auto; }
.crp-detail .content p { margin: 10px 0; }
.crp-abstract { background: #f0f9ff; border-left: 3px solid var(--crp-accent); padding: 12px 16px; border-radius: 6px; color: #475569; font-size: 14px; margin-bottom: 20px; }
.crp-attach-box { margin-top: 26px; padding: 16px 18px; background: #f8fafc; border: 1px dashed #cbd5e1; border-radius: 8px; }
.crp-attach-box a { color: var(--crp-accent); font-weight: 600; }

/* 相关推荐 */
.crp-related { margin-top: 26px; }
.crp-related h3 { font-size: 18px; color: var(--crp-primary); margin-bottom: 12px; }
.crp-related ul { list-style: none; }
.crp-related li { padding: 8px 0; border-bottom: 1px dashed var(--crp-line); display: flex; justify-content: space-between; gap: 16px; }
.crp-related .d { color: var(--crp-text-sub); font-size: 13px; white-space: nowrap; }

/* ---------- 课程详情页（章节树） ---------- */
.crp-course-layout { display: grid; grid-template-columns: 7fr 5fr; gap: 24px; align-items: start; margin-top: 14px; }
.crp-chapter-panel, .crp-course-intro { background: #fff; border-radius: var(--crp-radius); box-shadow: var(--crp-shadow); padding: 22px 24px; }
.crp-chapter-panel h3, .crp-course-intro h3 { font-size: 18px; color: var(--crp-primary); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid var(--crp-line); }
.crp-chapter { margin-bottom: 18px; }
.crp-chapter > h4 { font-size: 15px; color: var(--crp-text); background: #f1f5f9; padding: 8px 12px; border-radius: 6px; }
.crp-lesson { display: flex; align-items: center; gap: 10px; padding: 9px 12px 9px 16px; border-bottom: 1px dashed var(--crp-line); font-size: 14.5px; }
.crp-lesson:last-child { border-bottom: 0; }
.crp-lesson .lt { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.crp-lesson .free { font-size: 12px; color: #059669; background: #ecfdf5; border: 1px solid #a7f3d0; padding: 0 6px; border-radius: 4px; }
.crp-lesson .paid { font-size: 12px; color: #d97706; background: #fff7ed; border: 1px solid #fed7aa; padding: 0 6px; border-radius: 4px; }
.crp-lesson .go { color: var(--crp-accent); font-size: 13px; }
.crp-teacher-card { display: flex; gap: 14px; align-items: center; background: #f8fafc; border-radius: 8px; padding: 14px; margin-bottom: 10px; }
.crp-teacher-card img { width: 54px; height: 54px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.crp-teacher-card .tt { font-weight: 600; }
.crp-teacher-card .td { font-size: 13px; color: var(--crp-text-sub); }
.crp-stat-row { display: flex; gap: 22px; color: var(--crp-text-sub); font-size: 13px; margin-bottom: 14px; flex-wrap: wrap; }

/* ---------- 播放页 ---------- */
.crp-play-layout { display: grid; grid-template-columns: 8fr 4fr; gap: 22px; align-items: start; margin-top: 14px; }
.crp-player-panel { background: #0b1120; border-radius: var(--crp-radius); overflow: hidden; }
.crp-player-panel video, .crp-player-panel audio { width: 100%; display: block; background: #000; }
.crp-player-panel .doc-frame { width: 100%; min-height: 560px; border: 0; background: #fff; display: block; }
.crp-play-side { background: #fff; border-radius: var(--crp-radius); box-shadow: var(--crp-shadow); padding: 16px 18px; max-height: 640px; overflow: auto; }
.crp-play-side h3 { font-size: 16px; margin-bottom: 10px; color: var(--crp-primary); }
.crp-play-side .lesson.on .lt { color: var(--crp-accent); font-weight: 700; }
.crp-play-actions { display: flex; justify-content: space-between; gap: 12px; margin-top: 14px; flex-wrap: wrap; }
.crp-btn { display: inline-block; padding: 9px 22px; border-radius: 8px; background: var(--crp-accent); color: #fff; font-size: 14px; }
.crp-btn:hover { background: var(--crp-accent-light); color: #fff; }
.crp-btn.ghost { background: #fff; border: 1px solid var(--crp-line); color: var(--crp-text); }
.crp-btn.ghost:hover { border-color: var(--crp-accent); color: var(--crp-accent); }

/* ---------- 评论（对齐 cms_comment 标签输出容器） ---------- */
.crp-comments { background: #fff; border-radius: var(--crp-radius); box-shadow: var(--crp-shadow); padding: 22px 24px; margin-top: 22px; }
.crp-comments h3 { font-size: 18px; color: var(--crp-primary); margin-bottom: 12px; }

/* ---------- 空状态 ---------- */
.crp-empty { text-align: center; color: var(--crp-text-sub); padding: 44px 0; background: #fff; border-radius: var(--crp-radius); }

/* ---------- 页脚 ---------- */
.crp-footer { margin-top: 52px; background: #10254f; color: rgba(255,255,255,.78); padding: 30px 0 24px; font-size: 13.5px; }
.crp-footer a { color: rgba(255,255,255,.78); }
.crp-footer a:hover { color: #fff; }
.crp-footer .links { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 10px; }
.crp-footer .powered { margin-top: 8px; opacity: .65; }

/* ---------- 移动端响应式 ---------- */
@media (max-width: 992px) {
  .crp-grid { grid-template-columns: repeat(2, 1fr); }
  .crp-two-col { grid-template-columns: 1fr; }
  .crp-course-layout, .crp-play-layout { grid-template-columns: 1fr; }
  .crp-header-inner { height: auto; padding: 10px 0; flex-wrap: wrap; }
  .crp-nav { order: 3; width: 100%; }
  .crp-nav ul { gap: 0; }
}
@media (max-width: 768px) {
  .crp-hero { padding: 36px 0 42px; }
  .crp-hero h1 { font-size: 24px; }
  .crp-pin-strip { grid-template-columns: 1fr; }
  .crp-searchbar input { padding: 6px 0; }
  .crp-detail { padding: 22px 18px; }
  .crp-section { padding: 30px 0 4px; }
  .crp-site-portal { padding: 24px 20px; }
}
@media (max-width: 480px) {
  .crp-grid { grid-template-columns: 1fr; }
  .crp-logo { font-size: 18px; }
  .crp-hero-tags { display: none; }
}