/* course-market.css — 课程市场专用样式 */
/* 波次 1-4：Hero搜索 / 课程卡片v2 / 骨架屏 / 筛选排序 / 详情抽屉 / 我的课程v2 / 推荐区 / 移动端 */
/* 波次 5（2026-05-14）：独立产品壳 · 顶栏用户态 · SVG 图标 · 风格收敛 */

/* ===== 独立产品顶栏 ===== */
.cm-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--cm-topbar-h, 48px);
    background: #ffffff;
    border-bottom: 1px solid var(--cm-border, #e6e4df);
    box-shadow: 0 1px 4px rgba(31,31,29,.06);
    display: flex;
    align-items: center;
    padding: 0 20px;
    z-index: 100;
    gap: 0;
}

.cm-topbar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.cm-topbar-logo {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.cm-topbar-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--cm-text, #1f1f1d);
    letter-spacing: -.01em;
}

.cm-topbar-breadcrumb {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 0 20px;
    min-width: 0;
    color: var(--cm-text-muted, #6f6d68);
    font-size: 13px;
}

.cm-bc-item {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cm-bc-active {
    color: var(--cm-text, #1f1f1d);
    font-weight: 600;
}

.cm-bc-sep {
    display: flex;
    align-items: center;
    color: var(--cm-border, #e6e4df);
    flex-shrink: 0;
}

.cm-topbar-user {
    flex-shrink: 0;
    margin-left: auto;
}

.cm-user-chip {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 4px 10px 4px 5px;
    border-radius: 999px;
    background: transparent;
    transition: background .15s;
    cursor: default;
}

.cm-user-chip:hover {
    background: var(--cm-primary-light, #e0f2ee);
}

.cm-user-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0F7B6C 0%, #1a9b8a 100%);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
    user-select: none;
}

.cm-user-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--cm-text, #1f1f1d);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cm-user-role {
    font-size: 11px;
    font-weight: 700;
    color: var(--cm-primary, #0F7B6C);
    background: var(--cm-primary-light, #e0f2ee);
    padding: 2px 7px;
    border-radius: 999px;
    white-space: nowrap;
    letter-spacing: .02em;
}

.cm-user-logout {
    width: 26px;
    height: 26px;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--cm-text-muted, #6f6d68);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background .15s, color .15s;
    padding: 0;
    flex-shrink: 0;
}

.cm-user-logout:hover {
    background: #fee2e2;
    color: #dc2626;
}

/* 顶栏存在时，cop-shell 下移顶栏高度 */
.cop-shell {
    margin-top: var(--cm-topbar-h, 48px);
}

/* ===== Hero + Search ===== */
.cop-market-hero {
    padding: 32px 24px 24px;
    background: linear-gradient(135deg, #f0f9f7 0%, #e0f2ee 60%, #f7f7f5 100%);
    border-bottom: 1px solid #c8e8e4;
    text-align: center;
}
.cop-market-hero h2 { margin: 0 0 8px; font-size: 28px; color: #1f1f1d; font-weight: 800; }
.cop-market-hero p { margin: 0 0 20px; color: #6f6d68; font-size: 14px; max-width: 640px; margin-left: auto; margin-right: auto; }
.cop-search-wrap { position: relative; max-width: 560px; margin: 0 auto 14px; }
.cop-search-wrap input {
    width: 100%; padding: 12px 16px 12px 42px;
    border: 2px solid #e6e4df; border-radius: 999px;
    font-size: 15px; background: #fff; color: #1f1f1d;
    transition: border-color 0.2s, box-shadow 0.2s; box-sizing: border-box;
}
.cop-search-wrap input:focus { outline: none; border-color: #0F7B6C; box-shadow: 0 0 0 3px rgba(15,123,108,0.12); }
.cop-search-wrap input::placeholder { color: #b0aea7; }
.cop-search-icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); font-size: 18px; color: #b0aea7; pointer-events: none; }
.cop-search-results {
    position: absolute; top: 100%; left: 0; right: 0; margin-top: 6px;
    background: #fff; border: 1px solid #e6e4df; border-radius: 14px;
    box-shadow: 0 12px 32px rgba(31,31,29,0.12); z-index: 50;
    display: none; max-height: 320px; overflow-y: auto;
}
.cop-search-results.open { display: block; }
.cop-search-result-item { display: flex; align-items: center; gap: 10px; padding: 10px 16px; cursor: pointer; transition: background 0.12s; }
.cop-search-result-item:hover { background: #f4f3f0; }
.cop-search-result-thumb { width: 44px; height: 28px; border-radius: 6px; background: #eceaff; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 16px; }
.cop-search-result-title { font-size: 14px; color: #1f1f1d; flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cop-search-result-meta { font-size: 12px; color: #8c8a83; flex-shrink: 0; }
.cop-hot-words { display: flex; align-items: center; justify-content: center; gap: 8px; flex-wrap: wrap; max-width: 560px; margin: 0 auto; }
.cop-hot-words-label { font-size: 12px; color: #8c8a83; }
.cop-hot-word { font-size: 12px; padding: 4px 12px; border-radius: 999px; background: rgba(95,85,214,0.08); color: #5f55d6; cursor: pointer; border: 0; transition: background 0.15s; }
.cop-hot-word:hover { background: rgba(95,85,214,0.18); }

/* ===== Course Cards v2 ===== */
.cop-course-grid, .cop-market-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px; margin-top: .5rem; padding: 0 14px 14px;
}
.cop-course-card {
    display: grid; grid-template-rows: auto 1fr; border-radius: 16px;
    overflow: hidden; background: #fff; border: 1px solid #e8e6e1;
    transition: transform 0.2s cubic-bezier(0.4,0,0.2,1), box-shadow 0.2s cubic-bezier(0.4,0,0.2,1);
    cursor: pointer; box-shadow: 0 1px 3px rgba(31,31,29,0.06);
}
.cop-course-card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(31,31,29,0.12); }
.cop-course-card-cover {
    aspect-ratio: 16 / 9; position: relative; overflow: hidden;
    display: flex; align-items: center; justify-content: center; color: #fff; font-size: 2.4rem;
}
.cop-course-card:hover .cop-course-card-cover .cop-cover-placeholder { transform: scale(1.03); }
.cop-cover-placeholder {
    position: absolute; inset: 0; display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 4px;
    transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
}
.cop-cover-emoji { font-size: 2rem; }
.cop-cover-label { font-size: 11px; opacity: 0.8; }
.cop-cover-badge { position: absolute; top: 10px; left: 10px; background: rgba(0,0,0,0.35); color: #fff; font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 999px; backdrop-filter: blur(4px); }
.cop-cover-price { position: absolute; top: 10px; right: 10px; color: #e53935; font-size: 14px; font-weight: 800; background: rgba(255,255,255,0.92); padding: 2px 10px; border-radius: 999px; }
.cop-cover-price.free { color: #2e7d32; }
.cop-course-card-body { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.cop-course-card-body h3 { margin: 0; font-size: 16px; font-weight: 700; color: #1f1f1d; line-height: 1.35; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.cop-course-card-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.cop-course-card-tag { font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: #f4f3f0; color: #6f6d68; }
.cop-course-card-rating { display: flex; align-items: center; gap: 4px; font-size: 14px; color: #6f6d68; margin-top: auto; }
.cop-course-card-stars { color: #faaf00; letter-spacing: -1px; }
.cop-course-card-footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .35rem; padding-top: .5rem; border-top: 1px solid #f1f5f9; }
.cop-course-card-provider { font-size: .7rem; color: #8c8a83; }
.cop-course-card-apply-btn {
    width: 100%; font-size: 14px; font-weight: 700; padding: 10px;
    border-radius: 999px; border: 1.5px solid #5f55d6;
    background: #fff; color: #5f55d6; cursor: pointer;
    transition: background .15s, color .15s, border-color .15s; margin-top: 4px;
}
.cop-course-card:hover .cop-course-card-apply-btn,
.cop-course-card-apply-btn:hover { background: #5f55d6; color: #fff; }

/* Skeleton */
.cop-skeleton-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; padding: 0 14px 14px; }
.cop-skeleton-card { border-radius: 16px; overflow: hidden; background: #fff; border: 1px solid #e8e6e1; }
.cop-skeleton-cover { aspect-ratio: 16 / 9; background: #e8e6e1; animation: skeleton-pulse 1.5s ease-in-out infinite; }
.cop-skeleton-body { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 8px; }
.cop-skeleton-line { height: 14px; border-radius: 4px; background: #e8e6e1; animation: skeleton-pulse 1.5s ease-in-out infinite; }
.cop-skeleton-line.w60 { width: 60%; } .cop-skeleton-line.w80 { width: 80%; }
.cop-skeleton-line.w40 { width: 40%; } .cop-skeleton-line.w100 { width: 100%; }
@keyframes skeleton-pulse {
    0% { background-color: #e8e6e1; } 50% { background-color: #f0eeea; } 100% { background-color: #e8e6e1; }
}

/* ===== Filter & Sort Toolbar ===== */
.cop-market-toolbar {
    display: flex; flex-wrap: wrap; align-items: center; gap: .5rem;
    padding: 10px 14px; background: #fff; border-bottom: 1px solid #e8e6e1;
    position: sticky; top: 0; z-index: 10;
}
.cop-market-filters { display: flex; flex-wrap: wrap; align-items: center; gap: .35rem; flex: 1; }
.cop-filter-chip-label { font-size: .72rem; color: #8c8a83; margin-right: .2rem; }
.cop-filter-chip {
    font-size: .72rem; font-weight: 600; padding: .25rem .65rem; border-radius: 999px;
    background: #f4f3f0; border: 1.5px solid transparent; cursor: pointer;
    color: #585650; transition: background .15s, color .15s, border-color .15s;
}
.cop-filter-chip:hover { background: #eceaff; color: #5f55d6; }
.cop-filter-chip.active { background: #5f55d6; color: #fff; border-color: #5f55d6; }
.cop-sort-bar { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
.cop-sort-bar-label { font-size: .72rem; color: #8c8a83; }
.cop-sort-btn {
    font-size: .72rem; font-weight: 600; padding: .25rem .65rem; border-radius: 999px;
    border: 1px solid #e8e6e1; background: #fff; color: #585650; cursor: pointer;
    transition: background .15s, color .15s, border-color .15s;
}
.cop-sort-btn:hover { background: #f4f3f0; }
.cop-sort-btn.active { background: #1f1f1d; color: #fff; border-color: #1f1f1d; }
.cop-result-count { font-size: .72rem; color: #8c8a83; flex-shrink: 0; margin-left: auto; }

/* ===== Course Drawer v2 ===== */
.cop-drawer {
    position: fixed; top: 0; right: 0; bottom: 0; width: 420px; max-width: 95vw;
    background: #fff; border-left: 1.5px solid #e8e6e1;
    box-shadow: -4px 0 24px rgba(0,0,0,.1); z-index: 200;
    transform: translateX(110%); transition: transform .3s cubic-bezier(0,0,0.2,1);
    display: flex; flex-direction: column;
}
.cop-drawer[aria-hidden="false"] { transform: translateX(0); }
.cop-drawer-inner { padding: 1.5rem; flex: 1; overflow-y: auto; position: relative; }
.cop-drawer-close { position: absolute; top: 1rem; right: 1rem; background: none; border: none; font-size: 1.2rem; cursor: pointer; color: #64748b; }
.cop-drawer-actions { padding: 1rem 1.5rem; border-top: 1px solid #e8e6e1; }
.cop-drawer-section { margin-bottom: 1.5rem; }
.cop-drawer-section h4 { font-size: .78rem; color: #8c8a83; margin: 0 0 .3rem; }
.cop-drawer-section p { margin: 0; font-size: .82rem; color: #292824; }
.cop-drawer-commitment { color: #16a34a; font-size: .75rem; }
/* Drawer backdrop */
.cop-drawer-backdrop {
    position: fixed; inset: 0; background: rgba(0,0,0,0.3); z-index: 199;
    display: none; transition: opacity .3s;
}
.cop-drawer-backdrop.show { display: block; }

/* ===== My Courses v2 Tabs ===== */
.cop-my-courses-tabs { display: flex; gap: 4px; padding: 12px 14px 0; flex-wrap: wrap; }
.cop-my-courses-tab {
    padding: 8px 16px; border-radius: 999px; border: 1.5px solid #e8e6e1;
    background: #fff; color: #585650; font-size: 13px; font-weight: 700;
    cursor: pointer; transition: background .15s, color .15s, border-color .15s;
}
.cop-my-courses-tab:hover { background: #f4f3f0; }
.cop-my-courses-tab.active { background: #5f55d6; color: #fff; border-color: #5f55d6; }
.cop-my-courses-tab .cop-tab-count { font-size: 11px; opacity: 0.7; margin-left: 4px; }
.cop-my-courses-content { padding: 14px; }
.cop-my-courses-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.cop-expiry-badge {
    position: absolute; top: 10px; right: 10px;
    background: rgba(230,81,0,0.85); color: #fff;
    font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 999px;
}
.cop-course-card.suspended { opacity: 0.6; }
.cop-course-card.suspended .cop-course-card-apply-btn { background: #f4f3f0; color: #8c8a83; border-color: #e8e6e1; }

/* ===== Recommendations ===== */
.cop-recommend-bar { padding: 10px 14px; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; }
.cop-recommend-title { font-size: 13px; font-weight: 700; color: #6f6d68; margin-bottom: 8px; display: flex; align-items: center; gap: 6px; }
.cop-recommend-row { display: inline-flex; gap: 12px; }
.cop-recommend-card {
    width: 220px; flex-shrink: 0; border-radius: 14px; overflow: hidden;
    background: #fff; border: 1px solid #e8e6e1; cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}
.cop-recommend-card:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(31,31,29,0.08); }
.cop-recommend-cover { height: 100px; display: flex; align-items: center; justify-content: center; font-size: 2rem; color: #fff; }
.cop-recommend-body { padding: 8px 10px; }
.cop-recommend-body h4 { margin: 0 0 4px; font-size: 13px; color: #1f1f1d; }
.cop-recommend-body .cop-recommend-meta { font-size: 11px; color: #8c8a83; }

/* ===== Mobile Responsive (<768px) ===== */
@media (max-width: 768px) {
    .cop-market-hero { padding: 20px 12px 16px; }
    .cop-market-hero h2 { font-size: 22px; }
    .cop-market-hero p { font-size: 13px; }
    .cop-search-wrap { max-width: 100%; padding: 0 8px; }
    .cop-market-toolbar { flex-direction: column; align-items: flex-start; gap: 8px; }
    .cop-market-filters { overflow-x: auto; width: 100%; flex-wrap: nowrap; white-space: nowrap; -webkit-overflow-scrolling: touch; }
    .cop-sort-bar { width: 100%; justify-content: flex-start; }
    .cop-course-grid, .cop-market-grid { grid-template-columns: 1fr; padding: 0 12px 12px; gap: 12px; }
    .cop-my-courses-grid { grid-template-columns: 1fr; }
    .cop-skeleton-grid { grid-template-columns: 1fr; padding: 0 12px 12px; }
    .cop-drawer { width: 100vw; max-width: 100vw; }
    .cop-my-courses-tabs { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; }
    .cop-sidebar { position: relative; top: auto; height: auto; border-right: 0; border-bottom: 1px solid #e6e4df; overflow-x: auto; }
    .cop-shell { grid-template-columns: 1fr; height: auto; min-height: calc(100vh - var(--cm-topbar-h, 48px)); overflow: visible; }
    .cop-content { height: auto; }
}

/* ================================================================
   Wave 6 — 信任背书条
   ================================================================ */
.cop-trust-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 14px 24px;
    background: #fff;
    border-bottom: 1px solid #e6e4df;
}
.cop-trust-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 0 28px;
}
.cop-trust-item strong {
    font-size: 22px;
    font-weight: 800;
    color: #0F7B6C;
    line-height: 1;
}
.cop-trust-item span {
    font-size: 12px;
    color: #6f6d68;
}
.cop-trust-divider {
    width: 1px;
    height: 32px;
    background: #e6e4df;
    flex-shrink: 0;
}

/* ================================================================
   Wave 6 — 策划货架
   ================================================================ */
#cop-shelves-area { padding: 8px 0; }
.cop-shelf {
    padding: 16px 0 8px;
    border-bottom: 1px solid #f0ede8;
}
.cop-shelf-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 14px 10px;
}
.cop-shelf-title {
    margin: 0;
    font-size: 15px;
    font-weight: 800;
    color: #1f1f1d;
    display: flex;
    align-items: center;
    gap: 6px;
}
.cop-shelf-more {
    border: 0;
    background: transparent;
    color: #0F7B6C;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: background 0.15s;
}
.cop-shelf-more:hover { background: rgba(15,123,108,0.08); }
.cop-shelf-scroll {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    padding: 0 14px 12px;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
}
.cop-shelf-scroll::-webkit-scrollbar { display: none; }
.cop-shelf-scroll .cop-course-card {
    flex: 0 0 240px;
    scroll-snap-align: start;
}
.cop-shelf-empty {
    padding: 20px 14px;
    color: #b0aca5;
    font-size: 13px;
}

/* ================================================================
   Wave 7 — 四面板：总览 / 我的课程 / 学习与回流 / 服务支持
   ================================================================ */

/* ---- 横排统计条（复用：总览/学习/服务支持） ---- */
.cop-stat-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 14px;
}
.cop-stat-item {
    background: #fff;
    border: 1px solid #e6e4df;
    border-radius: 14px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    box-shadow: 0 10px 24px rgba(31,31,29,0.04);
}
.cop-stat-item strong {
    font-size: 30px;
    font-weight: 800;
    color: #0F7B6C;
    line-height: 1;
}
.cop-stat-item span {
    font-size: 13px;
    color: #6f6d68;
}

/* ---- 图标快捷入口网格（总览） ---- */
.cop-quick-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.cop-quick-entry-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 14px 8px;
    border-radius: 14px;
    background: #fff;
    border: 1px solid #e6e4df;
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.4,0,0.2,1), box-shadow 0.2s;
    min-height: 80px;
}
.cop-quick-entry-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(31,31,29,0.10);
}
.cop-quick-entry-card .cop-qe-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    flex-shrink: 0;
}
.cop-quick-entry-card .cop-qe-label {
    font-size: 12px;
    font-weight: 700;
    color: #1f1f1d;
    text-align: center;
}

/* ---- 我的课程：进度条 ---- */
.cop-course-progress {
    height: 4px;
    background: #eeece8;
    border-radius: 999px;
    overflow: hidden;
    margin: 6px 0;
}
.cop-course-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #0F7B6C, #1a9b8a);
    border-radius: 999px;
    transition: width 0.4s ease;
}
.cop-course-card-body .cop-card-action {
    display: flex;
    gap: 6px;
    margin-top: 6px;
}
.cop-card-action-btn {
    flex: 1;
    font-size: 12px;
    font-weight: 700;
    padding: 6px 10px;
    border-radius: 999px;
    border: 1.5px solid #0F7B6C;
    background: #fff;
    color: #0F7B6C;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    text-align: center;
}
.cop-card-action-btn:hover {
    background: #0F7B6C;
    color: #fff;
}
.cop-card-action-btn.secondary {
    border-color: #e6e4df;
    color: #6f6d68;
}
.cop-card-action-btn.secondary:hover {
    border-color: #6f6d68;
    background: #f4f3f0;
    color: #1f1f1d;
}

/* ---- 学习与回流：列表项与回流状态 ---- */
.cop-learning-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    background: #fff;
    border: 1px solid #e6e4df;
    border-radius: 12px;
    margin-bottom: 8px;
    transition: box-shadow 0.15s;
}
.cop-learning-item:hover {
    box-shadow: 0 4px 12px rgba(31,31,29,0.06);
}
.cop-li-info {
    flex: 1;
    min-width: 0;
}
.cop-li-info h4 {
    margin: 0 0 4px;
    font-size: 14px;
    color: #1f1f1d;
    font-weight: 700;
}
.cop-li-info p {
    margin: 0;
    font-size: 12px;
    color: #6f6d68;
}
.cop-li-progress {
    width: 100px;
    flex-shrink: 0;
}
.cop-li-progress .cop-course-progress { margin: 0 0 3px; }
.cop-li-progress span {
    font-size: 11px;
    color: #6f6d68;
    display: block;
    text-align: right;
}
.cop-li-action {
    flex-shrink: 0;
}
.cop-li-action button {
    font-size: 12px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 999px;
    border: 1.5px solid #e6e4df;
    background: #fff;
    color: #0F7B6C;
    cursor: pointer;
    transition: background 0.15s;
}
.cop-li-action button:hover {
    background: rgba(15,123,108,0.06);
}

.cop-reflux-card {
    padding: 16px;
    background: #fff;
    border: 1px solid #e6e4df;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}
.cop-reflux-card .cop-reflux-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.cop-reflux-card .cop-reflux-label {
    font-size: 12px;
    color: #6f6d68;
}
.cop-reflux-card .cop-reflux-value {
    font-size: 14px;
    font-weight: 700;
    color: #1f1f1d;
    display: flex;
    align-items: center;
    gap: 6px;
}
.cop-reflux-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}
.cop-reflux-status-dot.ok { background: #16a34a; }
.cop-reflux-status-dot.pending { background: #d97706; }
.cop-reflux-status-dot.error { background: #dc2626; }

/* ---- 服务支持：状态 chip 颜色变体 ---- */
.cop-status-chip {
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 999px;
    display: inline-block;
    white-space: nowrap;
}
.cop-status-chip.gray { background: #f4f3f0; color: #6f6d68; }
.cop-status-chip.blue { background: #e0f2fe; color: #0369a1; }
.cop-status-chip.green { background: #dcfce7; color: #15803d; }
.cop-status-chip.orange { background: #fff7ed; color: #c2410c; }

/* ---- 服务支持：提交工单头部区 ---- */
.cop-support-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}
.cop-support-header h2 { margin: 0; font-size: 20px; color: #1f1f1d; }
.cop-support-header .cop-primary {
    padding: 8px 16px;
    font-size: 13px;
}

/* 响应式补充 */
@media (max-width: 768px) {
    .cop-stat-row { grid-template-columns: repeat(2, 1fr); }
    .cop-quick-grid { grid-template-columns: repeat(3, 1fr); }
    .cop-learning-item { flex-wrap: wrap; }
    .cop-learning-item .cop-li-progress { width: 100%; }
    .cop-reflux-card { flex-direction: column; align-items: flex-start; }
    .cop-support-header { flex-direction: column; align-items: flex-start; gap: 10px; }
}
@media (max-width: 480px) {
    .cop-stat-row { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .cop-stat-item { padding: 12px; }
    .cop-stat-item strong { font-size: 24px; }
    .cop-quick-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ================================================================
   Wave I — 学生管理面板
   ================================================================ */

/* ---- 班级卡片 ---------- */
.cop-class-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}
.cop-class-card {
    background: #fff;
    border: 1px solid #e6e4df;
    border-radius: 14px;
    padding: 16px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 1px 3px rgba(31,31,29,0.04);
}
.cop-class-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(31,31,29,0.10);
}
.cop-class-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}
.cop-class-name {
    font-size: 15px;
    font-weight: 800;
    color: #1f1f1d;
}
.cop-class-badge {
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    background: #e0f2ee;
    color: #0F7B6C;
}
.cop-class-detail {
    display: flex;
    gap: 14px;
    font-size: 12px;
    color: #6f6d68;
}
.cop-class-detail span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ---- 学生花名册表格 ---- */
.cop-roster-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 14px;
}
.cop-roster-bar h3 {
    margin: 0;
    font-size: 17px;
    font-weight: 800;
    color: #1f1f1d;
}
.cop-roster-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.cop-roster-table-wrap {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid #e6e4df;
    background: #fff;
}
.cop-roster-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
.cop-roster-table th {
    text-align: left;
    padding: 10px 14px;
    background: #f7f7f5;
    color: #6f6d68;
    font-weight: 700;
    font-size: 12px;
    white-space: nowrap;
    border-bottom: 1px solid #e6e4df;
}
.cop-roster-table td {
    padding: 10px 14px;
    border-bottom: 1px solid #f0ede8;
    color: #1f1f1d;
}
.cop-roster-table tr:last-child td { border-bottom: none; }
.cop-roster-table tr:hover td { background: #faf9f7; }
.cop-student-status {
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    display: inline-block;
}
.cop-student-status.active { background: #dcfce7; color: #15803d; }
.cop-student-status.inactive { background: #fff7ed; color: #c2410c; }

/* ---- 学生抽屉子面板 ---- */
.cop-student-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 14px;
}
.cop-student-detail-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.cop-student-detail-item label {
    font-size: 11px;
    color: #8c8a83;
    font-weight: 600;
}
.cop-student-detail-item span {
    font-size: 14px;
    color: #1f1f1d;
    font-weight: 600;
}

/* ---- 班级课程分配 ---- */
.cop-assignment-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    margin: 2px 4px 2px 0;
    border-radius: 999px;
    background: #f4f3f0;
    font-size: 12px;
    color: #585650;
    font-weight: 600;
}

/* ---- 空态引导 ---- */
.cop-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 50px 20px;
    color: #b0aca5;
    gap: 8px;
}
.cop-empty-state .cop-empty-icon {
    font-size: 40px;
    opacity: 0.5;
    margin-bottom: 4px;
}
.cop-empty-state .cop-empty-label {
    font-size: 14px;
    font-weight: 600;
    color: #8c8a83;
}
.cop-empty-state .cop-empty-hint {
    font-size: 12px;
    color: #b0aca5;
}

/* ================================================================
   Wave J — 学情报表面板
   ================================================================ */

/* ---- 分布卡片 ---- */
.cop-distribution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}
.cop-distribution-card {
    background: #fff;
    border: 1px solid #e6e4df;
    border-radius: 14px;
    padding: 16px;
    box-shadow: 0 1px 3px rgba(31,31,29,0.04);
}
.cop-distribution-card h4 {
    margin: 0 0 10px;
    font-size: 13px;
    font-weight: 700;
    color: #6f6d68;
}

/* ---- 热力图 ---- */
.cop-heatmap-wrap {
    overflow-x: auto;
    background: #fff;
    border: 1px solid #e6e4df;
    border-radius: 14px;
    padding: 14px;
    margin-bottom: 20px;
}
.cop-heatmap-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}
.cop-heatmap-table th {
    padding: 6px 8px;
    text-align: center;
    font-weight: 700;
    color: #6f6d68;
    font-size: 11px;
    white-space: nowrap;
}
.cop-heatmap-table td {
    padding: 4px;
    text-align: center;
}
.cop-heatmap-cell {
    display: inline-block;
    width: 28px;
    height: 28px;
    border-radius: 4px;
    line-height: 28px;
    font-size: 10px;
    font-weight: 700;
    color: #1f1f1d;
}
.cop-heatmap-cell.level-0 { background: #f4f3f0; }
.cop-heatmap-cell.level-1 { background: #c8e8e4; }
.cop-heatmap-cell.level-2 { background: #8fd1c8; }
.cop-heatmap-cell.level-3 { background: #4fb8aa; color: #fff; }
.cop-heatmap-cell.level-4 { background: #0F7B6C; color: #fff; }
.cop-heatmap-cell.level-5 { background: #065f52; color: #fff; }

/* ---- 趋势图容器（Chart.js 渲染） ---- */
.cop-chart-container {
    background: #fff;
    border: 1px solid #e6e4df;
    border-radius: 14px;
    padding: 16px;
    margin-bottom: 20px;
}
.cop-chart-container h4 {
    margin: 0 0 12px;
    font-size: 14px;
    font-weight: 700;
    color: #1f1f1d;
}

/* ---- 课程采用表 ---- */
.cop-adoption-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}
.cop-adoption-card {
    background: #fff;
    border: 1px solid #e6e4df;
    border-radius: 12px;
    padding: 14px;
}
.cop-adoption-card h5 {
    margin: 0 0 6px;
    font-size: 14px;
    font-weight: 700;
    color: #1f1f1d;
}
.cop-adoption-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: #6f6d68;
}

/* ---- 学生进度列表 ---- */
.cop-progress-bar-group {
    display: flex;
    align-items: center;
    gap: 10px;
}
.cop-progress-bar-group .cop-course-progress { flex: 1; margin: 0; }
.cop-progress-bar-group .cop-progress-label {
    font-size: 12px;
    font-weight: 700;
    color: #6f6d68;
    flex-shrink: 0;
    width: 40px;
    text-align: right;
}

/* ================================================================
   Wave K — 学习数据面板（重写）
   ================================================================ */

/* ---- 学习进度概览 ---- */
.cop-learning-overview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}
.cop-learning-course-card {
    background: #fff;
    border: 1px solid #e6e4df;
    border-radius: 14px;
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    box-shadow: 0 1px 3px rgba(31,31,29,0.04);
    transition: box-shadow 0.2s;
}
.cop-learning-course-card:hover {
    box-shadow: 0 6px 16px rgba(31,31,29,0.08);
}
.cop-learning-course-card h4 {
    margin: 0;
    font-size: 15px;
    font-weight: 800;
    color: #1f1f1d;
}
.cop-learning-course-card .cop-lc-meta {
    font-size: 12px;
    color: #6f6d68;
    display: flex;
    gap: 12px;
}
.cop-learning-course-card .cop-lc-students {
    margin-top: 4px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* ---- 学习事件时间线 ---- */
.cop-learning-timeline {
    position: relative;
    padding-left: 24px;
}
.cop-learning-timeline::before {
    content: "";
    position: absolute;
    left: 8px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: #e6e4df;
    border-radius: 2px;
}
.cop-timeline-item {
    position: relative;
    padding: 0 0 16px 16px;
}
.cop-timeline-item::before {
    content: "";
    position: absolute;
    left: -18px;
    top: 6px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #0F7B6C;
    border: 2px solid #fff;
    box-shadow: 0 0 0 2px #0F7B6C;
}
.cop-timeline-item .cop-tl-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3px;
}
.cop-timeline-item .cop-tl-title {
    font-size: 13px;
    font-weight: 700;
    color: #1f1f1d;
}
.cop-timeline-item .cop-tl-time {
    font-size: 11px;
    color: #8c8a83;
}
.cop-timeline-item .cop-tl-detail {
    font-size: 12px;
    color: #6f6d68;
}

/* ================================================================
   通用组件
   ================================================================ */

/* 主色按钮 */
.cop-primary {
    padding: 8px 18px;
    border-radius: 999px;
    border: none;
    background: #0F7B6C;
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s;
    white-space: nowrap;
}
.cop-primary:hover { background: #0d6a5d; }
.cop-primary:active { background: #0a5c50; }

/* 次要按钮 */
.cop-secondary {
    padding: 8px 18px;
    border-radius: 999px;
    border: 1.5px solid #e6e4df;
    background: #fff;
    color: #585650;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}
.cop-secondary:hover { border-color: #b0aca5; background: #faf9f7; }

/* 小型按钮 */
.cop-btn-sm {
    padding: 5px 12px;
    font-size: 11px;
}

/* 面板头部 */
.cop-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}
.cop-panel-header h2 {
    margin: 0;
    font-size: 20px;
    font-weight: 800;
    color: #1f1f1d;
}
.cop-panel-header h3 {
    margin: 0;
    font-size: 17px;
    font-weight: 800;
    color: #1f1f1d;
}
.cop-panel-desc {
    font-size: 13px;
    color: #6f6d68;
    margin-bottom: 16px;
}

/* 骨架屏（通用文字占位） */
.cop-skeleton-text {
    height: 14px;
    border-radius: 4px;
    background: #e8e6e1;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
    display: inline-block;
}

/* 标签切换栏 */
.cop-tab-bar {
    display: flex;
    gap: 4px;
    padding: 0 0 12px;
    flex-wrap: wrap;
}

/* 错误重试条 */
.cop-error-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 10px;
    color: #b91c1c;
    font-size: 13px;
    margin-bottom: 14px;
}
.cop-error-banner .cop-retry-btn {
    margin-left: auto;
    padding: 4px 12px;
    border: 1px solid #fca5a5;
    border-radius: 6px;
    background: #fff;
    color: #b91c1c;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
}
.cop-error-banner .cop-retry-btn:hover { background: #fef2f2; }

/* 响应式扩展 */
@media (max-width: 768px) {
    .cop-distribution-grid { grid-template-columns: 1fr; }
    .cop-class-grid { grid-template-columns: 1fr; }
    .cop-learning-overview { grid-template-columns: 1fr; }
    .cop-adoption-grid { grid-template-columns: 1fr; }
    .cop-student-detail-grid { grid-template-columns: 1fr; }
    .cop-roster-table-wrap { border-radius: 0; border-left: none; border-right: none; }
}

/* ================================================================
   全局模态弹窗
   ================================================================ */
.cop-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.35);
    z-index: 300;
    display: none;
    transition: opacity 0.2s;
}
.cop-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 301;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(31,31,29,0.2);
    width: 440px;
    max-width: 90vw;
    max-height: 80vh;
    display: none;
    overflow: hidden;
}
.cop-modal-inner {
    padding: 24px;
    overflow-y: auto;
    max-height: 80vh;
    position: relative;
}
.cop-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: #8c8a83;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
}
.cop-modal-close:hover { background: #f4f3f0; color: #1f1f1d; }
.cop-modal h3 {
    margin: 0 0 16px;
    font-size: 18px;
    font-weight: 800;
    color: #1f1f1d;
}
.cop-form-group {
    margin-bottom: 14px;
}
.cop-form-group label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: #585650;
    margin-bottom: 4px;
}
.cop-form-group input,
.cop-form-group select {
    width: 100%;
    padding: 8px 12px;
    border: 1.5px solid #e6e4df;
    border-radius: 8px;
    font-size: 14px;
    color: #1f1f1d;
    background: #fff;
    box-sizing: border-box;
    transition: border-color 0.15s;
}
.cop-form-group input:focus,
.cop-form-group select:focus {
    outline: none;
    border-color: #0F7B6C;
    box-shadow: 0 0 0 3px rgba(15,123,108,0.1);
}
.cop-form-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 20px;
}
.cop-form-error {
    color: #dc2626;
    font-size: 12px;
    margin-top: 4px;
}
.cop-form-success {
    color: #15803d;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    padding: 8px;
}
/* ===== from inline <style> in course-market.html ===== */
    :root {
        --cm-topbar-h: 48px;
        --cm-primary: #0F7B6C;
        --cm-primary-light: #e0f2ee;
        --cm-bg: #f7f7f5;
        --cm-sidebar-bg: #f4f3f0;
        --cm-border: #e6e4df;
        --cm-text: #1f1f1d;
        --cm-text-muted: #6f6d68;
        --cm-radius: 12px;
        --cm-shadow: 0 2px 8px rgba(31,31,29,.08);
    }
    body {
        background: var(--cm-bg);
        overflow-x: hidden;
    }
    /* 覆盖 product-shell.css 的居中规则：课程市场是 App 布局，
       侧边栏必须贴紧视口左边缘，不随宽屏居中偏移 */
    .main-content.product-shell-main {
        max-width: none;
        margin-left: 0;
        margin-right: 0;
    }
    .main-content {
        min-height: 100vh;
        padding: 0;
        background: var(--cm-bg);
    }
    .cop-shell {
        min-height: calc(100vh - var(--cm-topbar-h));
        background: var(--cm-bg);
        display: grid;
        grid-template-columns: 260px minmax(0, 1fr);
        color: var(--cm-text);
    }
    .cop-sidebar {
        position: sticky;
        top: var(--cm-topbar-h);
        max-height: calc(100vh - var(--cm-topbar-h));
        padding: 18px 14px 22px;
        border-right: 1px solid #e6e4df;
        background: #f4f3f0;
        overflow-y: auto;
        scrollbar-width: none;
        box-shadow: none;
    }
    .cop-sidebar::-webkit-scrollbar { display: none; }
    .cop-brand {
        padding: 10px 10px 14px;
        border-bottom: 1px solid #e6e4df;
        margin-bottom: 12px;
    }
    .cop-brand h1 {
        margin: 0;
        font-size: 20px;
        line-height: 1.25;
        color: #1f1f1d;
    }
    .cop-brand p {
        margin: 8px 0 0;
        color: #6f6d68;
        font-size: 13px;
        line-height: 1.55;
    }
    .cop-nav-group {
        margin: 14px 0 8px;
        padding: 0 10px;
        color: #6f6d68;
        font-size: 11px;
        font-weight: 700;
        letter-spacing: .08em;
    }
    .cop-nav-button {
        width: 100%;
        border: 0;
        border-radius: 12px;
        background: transparent;
        color: #3f3d39;
        cursor: pointer;
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 10px;
        text-align: left;
        font-size: 14px;
        transition: background .15s, color .15s;
    }
    .cop-nav-button:hover {
        background: rgba(15, 123, 108, 0.06);
        color: #0a3d37;
    }
    .cop-nav-button.active {
        background: #0F7B6C;
        color: #ffffff;
        font-weight: 700;
        box-shadow: none;
    }
    .cop-nav-button.active:hover {
        background: #0d6659;
    }
    .cop-nav-button.active .cop-nav-token {
        background: rgba(255,255,255,0.20);
        color: #ffffff;
    }
    .cop-nav-token {
        width: 26px;
        height: 26px;
        border-radius: 9px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: #e0f2ee;
        color: #0F7B6C;
        font-weight: 800;
        font-size: 13px;
        flex: 0 0 auto;
    }
    .cop-nav-badge {
        margin-left: auto;
        border-radius: 999px;
        background: #e0f2ee;
        color: #0F7B6C;
        padding: 2px 7px;
        font-size: 11px;
        font-weight: 800;
    }
    .cop-content {
        padding: 0;
        min-width: 0;
        overflow-x: clip;
        background-color: var(--cm-bg);
    }
    .cop-primary {
        border: 0;
        border-radius: 999px;
        background: #1f1f1d;
        color: #fff;
        cursor: pointer;
        padding: 14px 18px;
        font-size: 15px;
        font-weight: 800;
        white-space: nowrap;
        box-shadow: 0 14px 30px rgba(31,31,29,.18);
    }
    .cop-chain-depth {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 10px;
    }
    .cop-chain-card {
        border: 1px solid #e6e4df;
        border-radius: 14px;
        background: #fff;
        padding: 14px;
    }
    .cop-chain-card h3 {
        margin: 0 0 8px;
        font-size: 16px;
    }
    .cop-chain-card ul {
        margin: 0;
        padding-left: 18px;
        color: #5f5d58;
        line-height: 1.7;
        font-size: 13px;
    }
    .cop-action-form {
        display: grid;
        gap: 10px;
        margin-top: 12px;
        padding: 14px;
        border: 1px solid #e6e4df;
        border-radius: 14px;
        background: #faf9f6;
    }
    .cop-action-form fieldset {
        border: 1px solid #e6e4df;
        border-radius: 12px;
        padding: 12px;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 10px;
    }
    .cop-action-form legend {
        padding: 0 6px;
        color: #1f1f1d;
        font-size: 13px;
        font-weight: 900;
    }
    .cop-action-form label {
        display: grid;
        gap: 4px;
        color: #5f5d58;
        font-size: 12px;
        font-weight: 800;
    }
    .cop-action-form input,
    .cop-action-form select,
    .cop-action-form textarea {
        width: 100%;
        border: 1px solid #d8d5cc;
        border-radius: 10px;
        padding: 9px 10px;
        color: #1f1f1d;
        background: #fff;
        font: inherit;
    }
    .cop-action-form button {
        width: max-content;
        border: 0;
        border-radius: 999px;
        padding: 10px 14px;
        background: #5f55d6;
        color: #fff;
        cursor: pointer;
        font-weight: 800;
    }
    .cop-panel {
        display: none;
        margin-top: 0;
        padding: 12px 14px 14px;
    }
    .cop-panel.active {
        display: block;
    }
    .cop-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 10px;
    }
    .cop-grid.two {
        grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
    }
    .cop-card,
    .cop-section {
        border: 1px solid #e6e4df;
        border-radius: 14px;
        background: #fff;
        padding: 14px;
        box-shadow: 0 10px 24px rgba(31,31,29,.04);
    }
    .cop-card-label {
        margin: 0 0 8px;
        color: #6f6d68;
        font-size: 13px;
    }
    .cop-card-value {
        font-size: 30px;
        color: #1f1f1d;
        line-height: 1;
    }
    .cop-section {
        margin-top: 10px;
    }
    .cop-section h2 {
        margin: 0 0 12px;
        font-size: 20px;
        color: #1f1f1d;
    }
    .cop-section h3 {
        margin: 0 0 10px;
        font-size: 15px;
        color: #1f1f1d;
    }
    .cop-list {
        display: grid;
        gap: 10px;
    }
    .cop-item {
        border: 1px solid #e6e4df;
        border-radius: 12px;
        padding: 13px;
        background: #fbfbfa;
    }
    .cop-item h3 {
        margin: 0 0 6px;
        font-size: 15px;
        color: #1f1f1d;
    }
    .cop-item p {
        margin: 0;
        color: #6f6d68;
        font-size: 13px;
        line-height: 1.6;
    }
    .cop-chip-row {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 8px;
    }
    .cop-chip {
        border-radius: 999px;
        background: #f2f2ef;
        color: #6f6d68;
        padding: 4px 8px;
        font-size: 12px;
    }
    .cop-muted {
        color: #6f6d68;
    }
    .cop-playbook {
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(240px, .45fr);
        gap: 10px;
        margin-top: 10px;
    }
    .cop-callout {
        border: 1px solid #dfdcd4;
        border-radius: 16px;
        background: linear-gradient(135deg, #fff 0%, #f7f6f1 100%);
        padding: 16px;
    }
    .cop-callout h2 {
        margin: 0 0 8px;
        font-size: 20px;
        color: #1f1f1d;
    }
    .cop-callout p {
        margin: 0;
        color: #5f5d58;
        line-height: 1.75;
    }
    .cop-path {
        counter-reset: cop-step;
    }
    .cop-path .cop-item h3::before {
        counter-increment: cop-step;
        content: counter(cop-step);
        display: inline-flex;
        width: 22px;
        height: 22px;
        margin-right: 8px;
        border-radius: 999px;
        align-items: center;
        justify-content: center;
        background: #1f1f1d;
        color: #fff;
        font-size: 12px;
        vertical-align: 1px;
    }
    @media (max-width: 860px) {
        body {
            overflow: auto;
        }
        .cop-shell {
            grid-template-columns: 1fr;
            min-height: calc(100vh - var(--cm-topbar-h, 48px));
        }
        .cop-sidebar {
            position: relative;
            top: auto;
            height: auto;
            border-right: 0;
            border-bottom: 1px solid #e6e4df;
            overflow-x: auto;
        }
        .cop-playbook,
        .cop-grid.two {
            grid-template-columns: 1fr;
        }
        .cop-brand p {
            display: none;
        }
        .cop-nav-button {
            min-width: 128px;
        }
    }
    .cop-expand-toggle {
        display: block;
        width: 100%;
        margin: 0.75rem 0 0;
        padding: 0.5rem 1rem;
        background: none;
        border: 1px dashed var(--cop-border, #ddd);
        border-radius: 6px;
        color: var(--cop-muted, #666);
        cursor: pointer;
        font-size: 0.85rem;
        text-align: center;
        transition: background 0.15s;
    }
    .cop-expand-toggle:hover { background: var(--cop-hover, #f5f5f5); }
/* Phase 2: Course market, drawer, filter buttons, provider materials */
.cop-filter-btn {
    padding: .35rem .85rem;
    border: 1.5px solid var(--cop-border, #e2e8f0);
    border-radius: 99px;
    background: transparent;
    color: var(--cop-fg, #1a202c);
    cursor: pointer;
    font-size: .82rem;
    transition: background .15s, border-color .15s, color .15s;
}
.cop-filter-btn.active,
.cop-filter-btn:hover {
    background: var(--cop-accent, #3b82f6);
    border-color: var(--cop-accent, #3b82f6);
    color: #fff;
}
.cop-course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
}
/* Drawer */
.cop-drawer {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: 380px;
    max-width: 95vw;
    background: #fff;
    border-left: 1.5px solid var(--cop-border, #e2e8f0);
    box-shadow: -4px 0 24px rgba(0,0,0,.1);
    z-index: 200;
    transform: translateX(110%);
    transition: transform .2s ease;
    display: flex;
    flex-direction: column;
}
.cop-drawer[aria-hidden="false"] { transform: translateX(0); }
.cop-drawer-inner { padding: 1.5rem; flex: 1; overflow-y: auto; position: relative; }
.cop-drawer-close {
    position: absolute;
    top: 1rem; right: 1rem;
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: #64748b;
}
.cop-drawer-actions { padding: 1rem 1.5rem; border-top: 1px solid var(--cop-border, #e2e8f0); }
/* Material checklist */
.cop-material-item {
    display: flex;
    align-items: flex-start;
    gap: .6rem;
    padding: .6rem 0;
    border-bottom: 1px solid #f1f5f9;
}
.cop-material-item .cop-material-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: .05rem; }
.cop-material-required { color: #e03e2d; font-size: .72rem; font-weight: 600; }
.cop-material-optional { color: #64748b; font-size: .72rem; }

/* ===== Wave C: onboarding step active states ===== */
.cop-onboarding-steps {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0;
    margin-bottom: .5rem;
}
.cop-onboarding-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .3rem;
}
.cop-onboarding-step-circle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #f4f3f0;
    border: 2px solid #e6e4df;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .78rem;
    font-weight: 700;
    color: #8c8a83;
    transition: background .3s, color .3s, border-color .3s;
}
.cop-onboarding-step-circle.active { background: #3b82f6; color: #fff; border-color: #3b82f6; }
.cop-onboarding-step-circle.done { background: #16a34a; color: #fff; border-color: #16a34a; }
.cop-onboarding-step-label {
    font-size: .78rem;
    color: #585650;
    white-space: nowrap;
}
.cop-onboarding-step-connector {
    width: 40px;
    height: 2px;
    background: #e6e4df;
    margin: 0 .5rem;
    flex-shrink: 0;
}
.cop-onboarding-step-connector.done { background: #16a34a; }

/* ===== Wave C: review queue ===== */
.cop-review-queue {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.cop-review-queue-col {
    background: #fff;
    border: 1px solid #e6e4df;
    border-radius: 12px;
    padding: 1rem;
}
.cop-review-queue-col h3 { margin: 0 0 .6rem; font-size: .85rem; color: #8c8a83; }
.cop-review-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .5rem;
    padding: .6rem 0;
    border-bottom: 1px solid #f4f3f0;
}
.cop-review-item:last-child { border-bottom: 0; }
.cop-review-actions { display: flex; gap: .35rem; }
.cop-review-action-btn {
    font-size: .7rem;
    font-weight: 700;
    padding: .25rem .65rem;
    border-radius: 999px;
    border: 1.5px solid;
    cursor: pointer;
    background: #fff;
    transition: background .15s, color .15s;
}
.cop-review-action-btn.approve { border-color: #16a34a; color: #16a34a; }
.cop-review-action-btn.approve:hover { background: #16a34a; color: #fff; }
.cop-review-action-btn.rework { border-color: #d97706; color: #d97706; }
.cop-review-action-btn.rework:hover { background: #d97706; color: #fff; }
.cop-review-action-btn.reject { border-color: #dc2626; color: #dc2626; }
.cop-review-action-btn.reject:hover { background: #dc2626; color: #fff; }

/* ===== Wave B: course cards ===== */
.cop-course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
    margin-top: .5rem;
}
.cop-course-card {
    background: #fff;
    border: 1px solid #e8e6e1;
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s cubic-bezier(0.4,0,0.2,1), box-shadow 0.2s ease;
    cursor: pointer;
}
.cop-course-card:hover {
    box-shadow: 0 12px 28px rgba(31,31,29,0.12);
    border-color: #d9d6cf;
    transform: translateY(-4px);
}
.cop-course-card-cover {
    aspect-ratio: 16 / 9;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 2rem;
}
.cop-course-card:hover .cop-course-card-cover .cop-cover-placeholder {
    transform: scale(1.03);
}
.cop-cover-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .25rem;
    transition: transform 0.2s ease;
}
    .cop-cover-emoji { font-size: 2rem; line-height: 1; }
    .cop-cover-icon { display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;color:#fff;flex-shrink:0; }
    .cop-cover-icon svg { width:100%;height:100%; }
.cop-cover-label { font-size: .7rem; font-weight: 600; opacity: .9; }
.cop-cover-badge {
    position: absolute;
    top: 8px; left: 8px;
    background: rgba(255,255,255,0.85);
    color: #1f1f1d;
    font-size: .65rem; font-weight: 700;
    padding: .15rem .5rem; border-radius: 999px;
    backdrop-filter: blur(4px);
}
.cop-cover-price {
    position: absolute;
    top: 8px; right: 8px;
    color: #e53935;
    font-size: .75rem; font-weight: 800;
    background: rgba(255,255,255,0.85);
    padding: .15rem .45rem; border-radius: 999px;
    backdrop-filter: blur(4px);
}
.cop-cover-price.free { color: #2e7d32; }
.cop-course-card-body {
    padding: 12px 14px 14px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: .35rem;
}
.cop-course-card h3 { margin: 0; font-size: 16px; font-weight: 700; color: #1f1f1d; line-height: 1.35; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.cop-course-card-tags { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: 2px; }
.cop-course-card-tag {
    font-size: 12px;
    font-weight: 600;
    padding: .15rem .5rem;
    border-radius: 999px;
    background: #eceaff;
    color: #5f55d6;
}
.cop-course-card-tag.age { background: #f0fdf4; color: #166534; }
.cop-course-card-tag.runtime { background: #fef3c7; color: #92400e; }
/* Rating row */
.cop-course-card-rating {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    color: #6f6d68;
    margin-top: 2px;
}
.cop-course-card-stars { color: #faaf00; letter-spacing: 1px; font-size: 13px; }
.cop-course-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .35rem;
    margin-top: auto;
    padding-top: .5rem;
    border-top: 1px solid #f1f5f9;
}
.cop-course-card-provider { font-size: 12px; color: #8c8a83; }
.cop-course-card-apply-btn {
    width: 100%;
    font-size: 14px;
    font-weight: 700;
    padding: .45rem .75rem;
    border-radius: 999px;
    border: 1.5px solid #5f55d6;
    background: #fff;
    color: #5f55d6;
    cursor: pointer;
    transition: background .15s, color .15s;
    margin-top: 6px;
}
.cop-course-card-apply-btn:hover { background: #5f55d6; color: #fff; }
/* Empty state */
.cop-empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 56px 24px;
    gap: 10px;
}
.cop-empty-icon { font-size: 3.5rem; line-height: 1; }
.cop-empty-title { margin: 0; font-size: 16px; font-weight: 700; color: #1f1f1d; }
.cop-empty-body { margin: 0; font-size: 14px; color: #6f6d68; max-width: 280px; line-height: 1.6; }
.cop-empty-btn {
    margin-top: 6px;
    font-size: 14px;
    font-weight: 700;
    padding: 8px 20px;
    border-radius: 999px;
    border: 1.5px solid #5f55d6;
    background: #fff;
    color: #5f55d6;
    cursor: pointer;
    transition: background .15s, color .15s;
}
.cop-empty-btn:hover { background: #5f55d6; color: #fff; }

/* Skeleton screen */
@keyframes skeleton-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .4; }
}
.cop-skeleton-card {
    background: #fff;
    border: 1px solid #e8e6e1;
    border-radius: 16px;
    overflow: hidden;
}
.cop-skeleton-cover {
    aspect-ratio: 16 / 9;
    background: #e8e6e1;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}
.cop-skeleton-body { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 8px; }
.cop-skeleton-line {
    height: 12px;
    border-radius: 6px;
    background: #e8e6e1;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}
.cop-skeleton-line.w60 { width: 60%; }
.cop-skeleton-line.w40 { width: 40%; }
.cop-skeleton-line.w80 { width: 80%; }
.cop-skeleton-line.h16 { height: 16px; }

/* ===== Recommendation bar ===== */
.cop-recommend-bar {
    margin-bottom: 12px;
    padding: 16px 18px;
    background: #faf9f6;
    border: 1px solid #e8e6e1;
    border-radius: 14px;
}
.cop-recommend-title {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}
.cop-rec-tab {
    font-size: 13px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 999px;
    border: 1.5px solid transparent;
    background: transparent;
    color: #6f6d68;
    cursor: pointer;
    transition: all .15s;
}
.cop-rec-tab.active {
    background: #5f55d6;
    color: #fff;
}
.cop-rec-tab:hover:not(.active) { background: #eceaff; color: #5f55d6; }
.cop-recommend-row {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: thin;
}
.cop-recommend-card {
    flex-shrink: 0;
    width: 160px;
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
    border: 1px solid #e8e6e1;
    cursor: pointer;
    transition: transform .15s, box-shadow .15s;
}
.cop-recommend-card:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(31,31,29,.1); }
.cop-recommend-cover {
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.cop-recommend-body { padding: 8px 10px; }
.cop-recommend-body h4 { margin: 0 0 3px; font-size: 12px; font-weight: 700; color: #1f1f1d; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.cop-recommend-meta { font-size: 12px; font-weight: 700; color: #e53935; }
.cop-recommend-meta.free { color: #2e7d32; }

/* ===== Wave B: course catalog filter ===== */
.cop-market-filters {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .35rem;
    margin: .5rem 0 .8rem;
}
.cop-filter-chip-label { font-size: .72rem; color: #8c8a83; margin-right: .2rem; }
.cop-filter-chip {
    font-size: .72rem;
    font-weight: 600;
    padding: .25rem .65rem;
    border-radius: 999px;
    background: #f4f3f0;
    border: 1.5px solid transparent;
    cursor: pointer;
    color: #585650;
    transition: background .15s, color .15s, border-color .15s;
}
.cop-filter-chip:hover { background: #eceaff; color: #5f55d6; }
.cop-filter-chip.active { background: #5f55d6; color: #fff; border-color: #5f55d6; }

/* ===== Wave D: progress bar ===== */
.cop-progress-bar { height: 6px; background: #e6e4df; border-radius: 999px; overflow: hidden; }
.cop-progress-fill { height: 100%; background: #3b82f6; border-radius: 999px; transition: width .3s ease; }
.cop-training-badge { font-size: .72rem; font-weight: 600; padding: .15rem .5rem; border-radius: 999px; }
.cop-training-badge.done { background: #dcfce7; color: #166534; }
.cop-training-badge.active { background: #dbeafe; color: #1e40af; }

/* ===== Wave B: my courses ===== */
.cop-my-courses-groups { display: flex; flex-direction: column; gap: .8rem; }
.cop-my-courses-group h3 { font-size: .78rem; color: #8c8a83; margin: 0 0 .4rem; }
/* My courses v2 tabs */
.cop-my-courses-tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    border-bottom: 1px solid #e8e6e1;
    padding-bottom: 8px;
}
.cop-my-courses-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 999px;
    border: 1.5px solid transparent;
    background: #f4f3f0;
    color: #6f6d68;
    cursor: pointer;
    transition: all .15s;
}
.cop-my-courses-tab.active {
    background: #5f55d6;
    color: #fff;
    border-color: #5f55d6;
}
.cop-my-courses-tab:hover:not(.active) { background: #eceaff; color: #5f55d6; }
.cop-tab-count {
    font-size: 11px;
    font-weight: 700;
    padding: 1px 6px;
    border-radius: 999px;
    background: rgba(255,255,255,0.25);
}
.cop-my-courses-tab.active .cop-tab-count { background: rgba(255,255,255,0.30); }
.cop-my-courses-tab:not(.active) .cop-tab-count { background: rgba(95,85,214,0.12); color: #5f55d6; }
.cop-my-courses-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.cop-expiry-badge {
    position: absolute;
    bottom: 8px; left: 8px;
    background: rgba(230,81,0,0.85);
    color: #fff;
    font-size: 11px; font-weight: 700;
    padding: .15rem .5rem;
    border-radius: 999px;
}

/* Drawer cover */
.cop-drawer-cover {
    width: 100%;
    aspect-ratio: 16 / 7;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    margin-bottom: 12px;
    position: relative;
    overflow: hidden;
}
.cop-drawer-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.08);
}

/* ===== Wave B: drawer ===== */
.cop-drawer {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: 440px;
    max-width: 95vw;
    background: #fff;
    border-left: 1px solid #e8e6e1;
    box-shadow: -8px 0 32px rgba(31,31,29,.10);
    z-index: 200;
    transform: translateX(110%);
    transition: transform .25s cubic-bezier(0.4,0,0.2,1);
    display: flex;
    flex-direction: column;
}
.cop-drawer[aria-hidden="false"] { transform: translateX(0); }
.cop-drawer-inner { padding: 20px 24px; flex: 1; overflow-y: auto; position: relative; }
.cop-drawer-close {
    position: absolute;
    top: 16px; right: 16px;
    background: rgba(31,31,29,.08);
    border: none;
    width: 32px; height: 32px;
    border-radius: 50%;
    font-size: 14px;
    cursor: pointer;
    color: #6f6d68;
    display: flex; align-items: center; justify-content: center;
    transition: background .15s;
    z-index: 10;
}
.cop-drawer-close:hover { background: rgba(31,31,29,.15); }
.cop-drawer-actions { padding: 12px 24px 20px; border-top: 1px solid #f1f5f9; }
.cop-drawer-section { margin-bottom: 20px; }
.cop-drawer-section h4 { font-size: 11px; letter-spacing: 0.5px; text-transform: uppercase; color: #8c8a83; margin: 0 0 8px; font-weight: 700; }
.cop-drawer-section p { margin: 0; font-size: 14px; color: #292824; line-height: 1.6; }
.cop-drawer-info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; font-size: 13px; color: #6f6d68; }
.cop-drawer-info-grid > div { display: flex; align-items: center; gap: 4px; }
.cop-drawer-commitment { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: #16a34a; }
.cop-drawer-commitment > div { display: flex; align-items: center; gap: 6px; }

/* ===== Material checklist ===== */
.cop-material-item {
    display: flex;
    align-items: flex-start;
    gap: .6rem;
    padding: .6rem 0;
    border-bottom: 1px solid #f1f5f9;
}
.cop-material-item .cop-material-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: .05rem; }
.cop-material-required { color: #e03e2d; font-size: .72rem; font-weight: 600; }
.cop-material-optional { color: #64748b; font-size: .72rem; }

/* ================================================================
   课程市场全面重设计 — cop-market-* 专属样式
   颜色体系：主色 #0F7B6C（专业信任）· 辅色 #FF6B35（活力CTA）· 背景 #F8F9FA
   ================================================================ */

/* ---- 全局变量 ---- */
:root {
    --cop-m-primary: #0F7B6C;
    --cop-m-primary-dark: #0a5c52;
    --cop-m-primary-light: #1a9b8a;
    --cop-m-accent: #FF6B35;
    --cop-m-accent-hover: #e85c28;
    --cop-m-bg: #F0F4F3;
    --cop-m-card-bg: #fff;
    --cop-m-text: #1a2e2b;
    --cop-m-muted: #6b7f7d;
    --cop-m-border: #d4e4e1;
}

/* ---- 内容区在市场面板时覆盖背景 ---- */
#cop-panel-school-catalog.active {
    background: var(--cop-m-bg);
    min-height: 100%;
}

/* ================================================================
   Hero 区域 — 大标题 + 搜索框 + 热词
   ================================================================ */
.cop-market-hero {
    background:
        radial-gradient(ellipse at 20% 50%, rgba(26,155,138,0.3) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(255,107,53,0.15) 0%, transparent 40%),
        linear-gradient(135deg, #0a5c52 0%, #0f7b6c 50%, #117a6b 100%);
    padding: 56px 40px 52px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: none;
}
.cop-market-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}
.cop-market-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 720px;
    margin: 0 auto;
}
.cop-market-hero-kicker {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.9);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 16px;
    border: 1px solid rgba(255,255,255,0.2);
}
.cop-market-hero h2 {
    margin: 0 0 12px;
    font-size: 36px;
    font-weight: 900;
    line-height: 1.2;
    color: #fff;
    text-shadow: 0 2px 12px rgba(0,0,0,0.15);
}
.cop-market-hero p {
    margin: 0 0 28px;
    color: rgba(255,255,255,0.8);
    font-size: 16px;
    line-height: 1.6;
}

/* ---- 搜索框 ---- */
.cop-search-wrap {
    position: relative;
    max-width: 580px;
    margin: 0 auto 20px;
}
.cop-search-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
    pointer-events: none;
    z-index: 1;
}
#cop-market-search {
    width: 100%;
    box-sizing: border-box;
    padding: 16px 20px 16px 52px;
    border: 2px solid rgba(255,255,255,0.25);
    border-radius: 999px;
    background: rgba(255,255,255,0.95);
    color: #1a2e2b;
    font-size: 15px;
    font-family: inherit;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18), 0 2px 8px rgba(0,0,0,0.1);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}
#cop-market-search:focus {
    border-color: rgba(255,255,255,0.7);
    box-shadow: 0 8px 40px rgba(0,0,0,0.22), 0 0 0 3px rgba(255,255,255,0.2);
    background: #fff;
}
#cop-market-search::placeholder { color: #9bafac; }

/* ---- 热门搜索词 ---- */
.cop-hot-words {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
}
.cop-hot-words-label {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    flex-shrink: 0;
}
.cop-hot-word {
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.22);
    color: rgba(255,255,255,0.9);
    border-radius: 999px;
    padding: 5px 14px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
    font-family: inherit;
}
.cop-hot-word:hover {
    background: rgba(255,255,255,0.25);
    border-color: rgba(255,255,255,0.5);
    color: #fff;
}

/* ================================================================
   品类快捷入口
   ================================================================ */
.cop-category-entries {
    display: flex;
    gap: 12px;
    padding: 20px 20px 4px;
    justify-content: center;
    flex-wrap: wrap;
}
.cop-category-entry {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    width: 90px;
    cursor: pointer;
    background: transparent;
    border: none;
    font-family: inherit;
    transition: transform 0.18s;
}
.cop-category-entry:hover { transform: translateY(-3px); }
.cop-category-entry-icon {
    width: 60px;
    height: 60px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    transition: box-shadow 0.18s;
    flex-shrink: 0;
}
.cop-category-entry:hover .cop-category-entry-icon {
    box-shadow: 0 8px 24px rgba(0,0,0,0.18);
}
.cop-category-entry-label {
    font-size: 12px;
    font-weight: 700;
    color: #2d4a46;
    text-align: center;
    line-height: 1.3;
}
.cop-category-entry.active .cop-category-entry-label { color: var(--cop-m-primary); }
.cop-category-entry.active .cop-category-entry-icon { outline: 3px solid var(--cop-m-primary); outline-offset: 2px; }

/* ================================================================
   推荐区 — 重新配色
   ================================================================ */
.cop-recommend-bar {
    margin: 8px 20px 0;
    padding: 18px 20px;
    background: #fff;
    border: 1px solid #d8eeea;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(15,123,108,0.06);
}
.cop-recommend-bar .cop-rec-tab.active {
    background: var(--cop-m-primary);
    color: #fff;
}
.cop-recommend-bar .cop-rec-tab:hover:not(.active) {
    background: #e0f2ee;
    color: var(--cop-m-primary);
}

/* ================================================================
   筛选排序工具栏 — sticky + 排序按钮
   ================================================================ */
.cop-market-toolbar {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(240,244,243,0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 12px 20px;
    border-bottom: 1px solid #d4e4e1;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 12px;
}
.cop-market-filters {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    flex: 1;
    margin: 0;
}
.cop-filter-chip-label {
    font-size: 12px;
    font-weight: 700;
    color: #4a6562;
    margin-right: 2px;
}
.cop-filter-chip {
    font-size: 12px;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 999px;
    background: rgba(255,255,255,0.8);
    border: 1.5px solid #c8deda;
    cursor: pointer;
    color: #3d5c58;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.cop-filter-chip:hover {
    background: #e0f2ee;
    border-color: var(--cop-m-primary);
    color: var(--cop-m-primary);
}
.cop-filter-chip.active {
    background: var(--cop-m-primary);
    border-color: var(--cop-m-primary);
    color: #fff;
}

/* ---- 排序按钮组 ---- */
.cop-sort-group {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}
.cop-sort-label {
    font-size: 12px;
    color: var(--cop-m-muted);
    margin-right: 4px;
    font-weight: 600;
}
.cop-sort-btn {
    font-size: 12px;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 999px;
    border: 1.5px solid #c8deda;
    background: transparent;
    color: #3d5c58;
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
}
.cop-sort-btn.active, .cop-sort-btn:hover {
    background: var(--cop-m-primary);
    border-color: var(--cop-m-primary);
    color: #fff;
}

/* ---- 结果计数 ---- */
.cop-result-count {
    font-size: 12px;
    color: var(--cop-m-muted);
    font-weight: 600;
    flex-shrink: 0;
    margin-left: 4px;
}

/* ================================================================
   课程卡片网格 — 商城感
   ================================================================ */
.cop-course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 18px;
    padding: 18px 20px 28px;
    margin-top: 0 !important;
}

/* 覆盖旧卡片样式 */
.cop-panel .cop-course-card {
    background: #fff;
    border: 1px solid #d8eeea;
    border-radius: 18px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.22s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease, border-color 0.2s ease;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(15,123,108,0.06);
}
.cop-panel .cop-course-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(15,123,108,0.16), 0 4px 16px rgba(0,0,0,0.08);
    border-color: rgba(15,123,108,0.3);
}
.cop-panel .cop-course-card-cover {
    aspect-ratio: 16 / 9;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.cop-panel .cop-course-card:hover .cop-course-card-cover .cop-cover-placeholder {
    transform: scale(1.06);
}
.cop-panel .cop-cover-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transition: transform 0.3s ease;
}
    .cop-panel .cop-cover-emoji { font-size: 2.4rem; line-height: 1; filter: drop-shadow(0 2px 6px rgba(0,0,0,0.2)); }
    .cop-panel .cop-cover-icon { filter: drop-shadow(0 2px 6px rgba(0,0,0,0.25)); }
.cop-panel .cop-cover-label {
    font-size: 11px;
    font-weight: 700;
    opacity: 0.9;
    background: rgba(255,255,255,0.2);
    padding: 2px 10px;
    border-radius: 999px;
    letter-spacing: 0.05em;
}
.cop-panel .cop-cover-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(255,255,255,0.92);
    color: var(--cop-m-primary-dark);
    font-size: 11px;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 999px;
    backdrop-filter: blur(8px);
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}
.cop-panel .cop-cover-price {
    position: absolute;
    top: 10px;
    right: 10px;
    color: #fff;
    font-size: 13px;
    font-weight: 800;
    background: rgba(255,107,53,0.9);
    padding: 3px 9px;
    border-radius: 999px;
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}
.cop-panel .cop-cover-price.free {
    background: rgba(15,123,108,0.9);
    color: #fff;
}

/* ---- 卡片内容区 ---- */
.cop-panel .cop-course-card-body {
    padding: 14px 16px 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.cop-panel .cop-course-card h3 {
    margin: 0;
    font-size: 15px;
    font-weight: 700;
    color: #1a2e2b;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.cop-panel .cop-course-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 2px;
}
.cop-panel .cop-course-card-tag {
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 999px;
    background: #e8f5f2;
    color: var(--cop-m-primary);
}
.cop-panel .cop-course-card-tag.age { background: #e8f5f2; color: #0a5c52; }
.cop-panel .cop-course-card-tag.runtime { background: #fff3ed; color: #c04a1a; }
.cop-panel .cop-course-card-rating {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--cop-m-muted);
    margin-top: 2px;
}
.cop-panel .cop-course-card-stars { color: #f59e0b; letter-spacing: 1px; font-size: 12px; }
.cop-panel .cop-course-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: auto;
    padding-top: 8px;
    border-top: 1px solid #eaf3f1;
}
.cop-panel .cop-course-card-provider {
    font-size: 11px;
    color: var(--cop-m-muted);
    font-weight: 500;
}

/* ---- CTA 按钮 — 橙色活力 ---- */
.cop-panel .cop-course-card-apply-btn {
    width: 100%;
    font-size: 14px;
    font-weight: 700;
    padding: 10px 16px;
    border-radius: 999px;
    border: none;
    background: var(--cop-m-accent);
    color: #fff;
    cursor: pointer;
    transition: background 0.15s, transform 0.12s, box-shadow 0.15s;
    margin-top: 8px;
    box-shadow: 0 4px 12px rgba(255,107,53,0.28);
    letter-spacing: 0.02em;
}
.cop-panel .cop-course-card-apply-btn:hover {
    background: var(--cop-m-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(255,107,53,0.36);
}
.cop-panel .cop-course-card-apply-btn:active { transform: translateY(0); }

/* ================================================================
   骨架屏 — 品牌色调
   ================================================================ */
@keyframes cop-skeleton-wave {
    0% { background-position: -400px 0; }
    100% { background-position: 400px 0; }
}
.cop-skeleton-card {
    background: #fff;
    border: 1px solid #d8eeea;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(15,123,108,0.06);
}
.cop-skeleton-cover {
    aspect-ratio: 16 / 9;
    background: linear-gradient(90deg, #e0f2ee 25%, #c8e8e2 50%, #e0f2ee 75%);
    background-size: 800px 100%;
    animation: cop-skeleton-wave 1.4s ease-in-out infinite;
}
.cop-skeleton-line {
    height: 12px;
    border-radius: 6px;
    background: linear-gradient(90deg, #e0f2ee 25%, #c8e8e2 50%, #e0f2ee 75%);
    background-size: 800px 100%;
    animation: cop-skeleton-wave 1.4s ease-in-out infinite;
}
.cop-skeleton-line.h16 { height: 16px; }

/* ================================================================
   空态 — 引导感
   ================================================================ */
.cop-empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 64px 24px;
    gap: 12px;
    background: #fff;
    border-radius: 18px;
    border: 1.5px dashed #b2d8d2;
}
.cop-empty-icon { font-size: 4rem; line-height: 1; }
.cop-empty-title { margin: 0; font-size: 17px; font-weight: 700; color: #1a2e2b; }
.cop-empty-body { margin: 0; font-size: 14px; color: var(--cop-m-muted); max-width: 300px; line-height: 1.65; }
.cop-empty-btn {
    margin-top: 8px;
    font-size: 14px;
    font-weight: 700;
    padding: 10px 24px;
    border-radius: 999px;
    border: none;
    background: var(--cop-m-accent);
    color: #fff;
    cursor: pointer;
    transition: background 0.15s;
    box-shadow: 0 4px 12px rgba(255,107,53,0.28);
}
.cop-empty-btn:hover { background: var(--cop-m-accent-hover); }

/* ================================================================
   详情抽屉遮罩
   ================================================================ */
.cop-drawer-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10,40,36,0.35);
    z-index: 190;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}
.cop-drawer-backdrop.show { display: block; }

/* ================================================================
   响应式
   ================================================================ */
@media (max-width: 768px) {
    .cop-market-hero {
        padding: 36px 20px 32px;
    }
    .cop-market-hero h2 { font-size: 26px; }
    .cop-course-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 14px 12px 24px;
        gap: 12px;
    }
    .cop-market-toolbar {
        padding: 10px 12px;
        overflow-x: auto;
        flex-wrap: nowrap;
    }
    .cop-market-filters { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 2px; }
    .cop-category-entries { gap: 8px; padding: 14px 12px 0; }
    .cop-category-entry { width: 72px; }
    .cop-category-entry-icon { width: 50px; height: 50px; font-size: 22px; }
    .cop-recommend-bar { margin: 8px 12px 0; }
}
@media (max-width: 480px) {
    .cop-course-grid {
        grid-template-columns: 1fr;
    }
}

/* ================================================================
   Wave E: certificate cards ================================================================ */
/* ===== Wave E: certificate cards ===== */
.cop-cert-card {
    display: flex;
    align-items: center;
    gap: .75rem;
    background: #fff;
    border: 1px solid #e6e4df;
    border-radius: 12px;
    padding: .9rem 1rem;
    margin-bottom: .6rem;
    transition: box-shadow .15s;
}
.cop-cert-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.06); }
.cop-cert-card-badge { font-size: 1.8rem; flex-shrink: 0; }
.cop-cert-card-body { flex: 1; min-width: 0; }
.cop-cert-card-body h4 { margin: 0 0 .15rem; font-size: .85rem; color: #292824; }
.cop-cert-card-meta { margin: 0; font-size: .72rem; color: #8c8a83; }
.cop-cert-card-actions { display: flex; gap: .35rem; flex-shrink: 0; }
.cop-cert-action-btn {
    font-size: .7rem;
    font-weight: 700;
    padding: .25rem .65rem;
    border-radius: 999px;
    border: 1.5px solid #c4bff2;
    background: #fff;
    color: #5f55d6;
    cursor: pointer;
    text-decoration: none;
    transition: background .15s, color .15s;
}
.cop-cert-action-btn:hover { background: #5f55d6; color: #fff; }
.cop-cert-action-btn.download { border-color: #16a34a; color: #16a34a; }
.cop-cert-action-btn.download:hover { background: #16a34a; color: #fff; }

/* ── Workspace Switcher ─────────────────────────────────────── */
.cop-ws-switcher {
    display: none !important;
}
.cop-ws-label {
    font-size: 11px;
    color: #8c8a83;
    margin-right: 6px;
    white-space: nowrap;
    letter-spacing: .02em;
}
.cop-ws-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    text-decoration: none;
    color: #585650;
    background: #f4f3f0;
    border: 1px solid transparent;
    transition: all .15s;
    white-space: nowrap;
}
.cop-ws-pill:hover { background: #eceaff; color: #3e3794; }
.cop-ws-pill.active {
    background: #5f55d6;
    color: #fff;
    border-color: #4a41c0;
}
.cop-ws-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    opacity: .5;
    flex-shrink: 0;
}

/* ── Admin-only Workspace Switcher (sidebar) ────────────────── */
.cop-ws-admin-wrap {
    margin-top: auto;
    padding-top: 8px;
}
.cop-ws-admin-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 9px 14px;
    border: none;
    background: transparent;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 500;
    color: #3d3d3b;
    cursor: pointer;
    text-align: left;
    transition: background .12s, opacity .12s;
    position: relative;
    opacity: .65;
}
.cop-ws-admin-btn:hover { 
    background: #f4f3f0; 
    opacity: 1; 
}
.cop-ws-admin-btn .cop-nav-token {
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.cop-ws-admin-btn .cop-nav-token svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    opacity: .7;
}
.cop-ws-admin-arrow {
    margin-left: auto;
    font-size: 10px;
    opacity: .5;
    transition: transform .15s;
}
.cop-ws-admin-btn.is-open .cop-ws-admin-arrow { transform: rotate(90deg); }
.cop-ws-admin-menu {
    position: absolute;
    left: 100%;
    bottom: 0;
    margin-left: 4px;
    background: #fff;
    border: 1px solid #e6e4df;
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(31,31,29,.12);
    padding: 4px;
    min-width: 150px;
    z-index: 200;
}
.cop-ws-admin-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    color: #3d3d3b;
    text-decoration: none;
    transition: background .12s;
    white-space: nowrap;
}
.cop-ws-admin-item:hover { background: #f4f3f0; }
.cop-ws-admin-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}
/* ===== 风格收敛：卡片圆角/阴影统一规范 ===== */
.cop-card,
.cop-course-card,
.cop-list-item,
.cop-recommend-card,
.cop-entitlement-card {
    border-radius: var(--cm-radius, 12px);
    box-shadow: var(--cm-shadow, 0 2px 8px rgba(31,31,29,.08));
}
/* ===== 导航按钮图标统一为 SVG 容器 ===== */
.cop-nav-token svg {
    width: 16px;
    height: 16px;
    display: block;
    color: inherit;
}
.cop-nav-token {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* ================================================================
   Wave 6.1 Fix — trust strip / shelf card / grid density
   ================================================================ */
/* 1. Trust strip: inline override so browser cache of external CSS doesn't matter */
.cop-trust-strip {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
    gap: 0;
    width: 100%;
    box-sizing: border-box;
    padding: 12px 0;
    background: #fff;
    border-top: 1px solid #e6e4df;
    border-bottom: 1px solid #e6e4df;
}
.cop-trust-item {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 0 22px;
    flex-shrink: 0;
}
.cop-trust-item strong {
    font-size: 20px;
    font-weight: 800;
    color: #0F7B6C;
    line-height: 1.1;
    display: block;
}
.cop-trust-item span {
    font-size: 12px;
    color: #6f6d68;
    white-space: nowrap;
    display: block;
}
.cop-trust-divider {
    width: 1px;
    height: 28px;
    background: #d8eeea;
    flex-shrink: 0;
    align-self: center;
}

/* 2. Shelf compact cards — higher specificity to beat .cop-panel .cop-course-card */
#cop-shelves-area .cop-shelf-scroll .cop-course-card {
    flex: 0 0 210px !important;
    width: 210px !important;
    max-width: 210px !important;
    min-width: 0 !important;
    scroll-snap-align: start;
}

/* 3. Catalog grid — denser columns, less padding (inline overrides external CSS) */
.cop-panel .cop-course-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 14px;
    padding: 14px 16px 28px;
}

/* 4. Hero slightly more compact */
.cop-market-hero { padding: 40px 40px 36px; }

/* ================================================================
   Wave 6.2 — 货架紧凑布局（inline 防缓存版）
   ================================================================ */
/* Shelf header: force flex row */
.cop-shelf-header {
    display: flex !important;
    flex-direction: row !important;
    justify-content: space-between;
    align-items: center;
    padding: 0 14px 10px;
}
/* Shelf grid: responsive, wraps automatically */
.cop-shelf-grid {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
    padding: 0 14px 18px;
}

/* Shelf card: grid controls width, just reset flex */
#cop-shelves-area .cop-course-card {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
}
/* Compact cover: 4:3 ratio */
#cop-shelves-area .cop-course-card .cop-course-card-cover {
    aspect-ratio: 4 / 3 !important;
}
/* Compact body */
#cop-shelves-area .cop-course-card .cop-course-card-body {
    padding: 8px 10px 10px !important;
    gap: 4px !important;
}
#cop-shelves-area .cop-course-card h3 {
    font-size: 13px !important;
    line-height: 1.4 !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
/* Hide non-essential elements inside shelf */
#cop-shelves-area .cop-course-card .cop-course-card-tags,
#cop-shelves-area .cop-course-card .cop-course-card-rating,
#cop-shelves-area .cop-course-card .cop-course-card-apply-btn {
    display: none !important;
}
/* Keep provider compact */
#cop-shelves-area .cop-course-card .cop-course-card-footer {
    margin-top: 2px !important;
    padding-top: 0 !important;
    border-top: none !important;
}
#cop-shelves-area .cop-course-card .cop-course-card-provider {
    font-size: 11px !important;
}

/* ================================================================
   Wave 6.4 — 文字 & 图标色彩丰富化
   ================================================================ */
.cop-brand h1 { color: #0a3d37 !important; }
.cop-brand p  { color: #4a7a73 !important; }
.cop-nav-group { color: #0F7B6C !important; }

.cop-shelf-title {
    font-size: 15px; font-weight: 700;
    color: #1f1f1d;
    display: flex; align-items: center; gap: 6px; margin: 0;
}
[data-shelf-key="new"] .cop-shelf-title           { color: #92400E; }
[data-shelf-key="hot"] .cop-shelf-title           { color: #B91C1C; }
[data-shelf-key="physical_health"] .cop-shelf-title { color: #1D4ED8; }

.cop-shelf-more {
    background: none;
    border: 1px solid rgba(15,123,108,.35);
    border-radius: 999px;
    padding: 3px 12px;
    font-size: 12px;
    color: #0F7B6C;
    cursor: pointer;
    font-weight: 600;
    white-space: nowrap;
    transition: background .15s, border-color .15s;
}
.cop-shelf-more:hover { background: rgba(15,123,108,.08); border-color: #0F7B6C; }

.cop-filter-chip-label { color: #0F7B6C !important; font-weight: 700; }
.cop-sort-label        { color: #0F7B6C !important; font-weight: 700; }

.cop-category-entry-label {
    font-size: 12px; font-weight: 600; color: #3a3835;
    transition: color .15s;
}
.cop-category-entry:hover .cop-category-entry-label,
.cop-category-entry.active .cop-category-entry-label { color: #0F7B6C; }

.cop-hot-words-label { color: rgba(255,255,255,.75); font-size: 13px; }
.cop-hot-word {
    color: rgba(255,255,255,.92);
    border-color: rgba(255,255,255,.35);
    background: rgba(255,255,255,.12);
    font-size: 13px;
    transition: background .15s, border-color .15s;
}
.cop-hot-word:hover { background: rgba(255,255,255,.22); border-color: rgba(255,255,255,.6); color: #fff; }

.cop-course-card h3 { color: #1a1916 !important; }
.cop-course-card .cop-course-card-provider { color: #4a7a73 !important; }

/* ===== Learning Data panel v1.1 additions ===== */
.cop-learning-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 16px;
}
.cop-learning-list .cop-learning-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #fff;
    border: 1px solid #e8e6e1;
    border-radius: 12px;
    padding: 12px 16px;
    transition: box-shadow .15s, transform .15s;
}
.cop-learning-list .cop-learning-item:hover {
    box-shadow: 0 2px 8px rgba(31,31,29,.08);
    transform: translateY(-1px);
}
.cop-learning-list .cop-li-info { flex: 1; min-width: 0; }
.cop-learning-list .cop-li-info h4 { margin: 0; font-size: 14px; font-weight: 700; color: #1f1f1d; }
.cop-learning-list .cop-li-info p { margin: 2px 0 0; font-size: 12px; color: #8c8a83; }
.cop-learning-list .cop-li-progress { width: 140px; }
.cop-learning-list .cop-li-action { flex-shrink: 0; }
.cop-learning-list .cop-li-action button {
    font-size: 12px; padding: 6px 12px; border-radius: 999px;
    border: 1.5px solid #e8e6e1; background: #fff; color: #5f55d6;
    cursor: pointer; font-weight: 600; transition: background .15s, border-color .15s;
}
.cop-learning-list .cop-li-action button:hover { background: #eceaff; border-color: #5f55d6; }

/* Attendance alerts */
.cop-attendance-alerts {
    margin-bottom: 16px;
}
.cop-attendance-alert {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 10px;
    margin-bottom: 6px;
    border-left: 4px solid;
    background: #fff;
    border: 1px solid #e8e6e1;
    border-left-width: 4px;
}
.cop-attendance-alert.red { border-left-color: #dc2626; }
.cop-attendance-alert.yellow { border-left-color: #d97706; }
.cop-attend-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}
.cop-attend-dot.green { background: #16a34a; }
.cop-attend-dot.yellow { background: #d97706; }
.cop-attend-dot.red { background: #dc2626; }

/* Student inline detail */
.cop-student-inline-detail {
    background: #f9f8f6;
    border: 1px solid #e8e6e1;
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
}
.cop-student-inline-detail h4 { margin: 0 0 8px; font-size: 14px; font-weight: 700; color: #1f1f1d; }
.cop-student-inline-detail .cop-si-stat-row {
    display: flex; gap: 16px; margin-bottom: 10px;
}
.cop-student-inline-detail .cop-si-stat {
    flex: 1; text-align: center;
    padding: 8px; background: #fff; border-radius: 8px;
    border: 1px solid #e8e6e1;
}
.cop-student-inline-detail .cop-si-stat strong { display: block; font-size: 18px; color: #0F7B6C; }
.cop-student-inline-detail .cop-si-stat span { font-size: 11px; color: #8c8a83; }
.cop-si-timeline { margin-top: 8px; }
.cop-si-timeline .cop-si-event {
    display: flex; justify-content: space-between; align-items: center;
    padding: 6px 0; border-bottom: 1px solid #eee;
    font-size: 13px;
}
.cop-si-timeline .cop-si-event:last-child { border-bottom: none; }
.cop-si-event .cop-si-time { color: #8c8a83; font-size: 12px; }