/* ocean 模板样式：深蓝海洋科技风 */
/* 主色：深蓝底 #0b1628 + 浅蓝强调 #38bdf8 + 白色文字 */

/* ===== 重置与基础 ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg-base:        #0b1628;
    --bg-surface:     #0f1f38;
    --bg-card:        rgba(15, 31, 56, 0.72);
    --bg-glass:       rgba(56, 189, 248, 0.06);
    --accent:         #38bdf8;
    --accent-dim:     #0ea5e9;
    --accent-glow:    rgba(56, 189, 248, 0.25);
    --accent-border:  rgba(56, 189, 248, 0.3);
    --text-primary:   #e2eaf4;
    --text-secondary: #94afc8;
    --text-muted:     #4d6a8a;
    --border-subtle:  rgba(56, 189, 248, 0.12);
    --border-card:    rgba(56, 189, 248, 0.22);
    --radius-card:    12px;
    --radius-btn:     8px;
    --radius-chip:    6px;
    --nav-h:          64px;
    --shadow-card:    0 0 0 1px var(--border-card), 0 4px 24px rgba(0,0,0,0.4);
    --shadow-glow:    0 0 16px var(--accent-glow);
    --transition:     0.18s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg-base);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

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

img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

ul, ol {
    list-style: none;
}

/* ===== 外壳容器 ===== */
.sea-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===== 导航 ===== */
.sea-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: linear-gradient(180deg, #0a1830 0%, rgba(11,22,40,0.92) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: 0 2px 24px rgba(0,0,0,0.5);
}

.sea-nav-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    height: var(--nav-h);
    display: flex;
    align-items: center;
    gap: 20px;
}

/* 汉堡按钮 */
.sea-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-chip);
    transition: background var(--transition);
    flex-shrink: 0;
}

.sea-menu-btn:hover {
    background: var(--bg-glass);
}

.sea-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

/* 品牌 */
.sea-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    color: var(--text-primary);
}

.sea-brand-mark {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--accent-dim), var(--accent));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    box-shadow: var(--shadow-glow);
    flex-shrink: 0;
}

.sea-brand-copy strong {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    line-height: 1.2;
}

.sea-brand-copy span {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.2;
}

/* 频道导航链接区 */
.sea-channel-nav {
    display: flex;
    align-items: center;
    gap: 2px;
    overflow-x: auto;
    scrollbar-width: none;
    flex: 1;
}

.sea-channel-nav::-webkit-scrollbar {
    display: none;
}

.sea-channel-link {
    padding: 6px 14px;
    border-radius: var(--radius-chip);
    font-size: 14px;
    color: var(--text-secondary);
    white-space: nowrap;
    transition: color var(--transition), background var(--transition);
}

.sea-channel-link:hover {
    color: var(--accent);
    background: var(--bg-glass);
}

.sea-channel-link.is-active {
    color: var(--accent);
    background: rgba(56, 189, 248, 0.12);
    font-weight: 600;
}

/* 导航搜索框 */
.sea-nav-search {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.sea-nav-search .sea-input {
    width: 200px;
    height: 36px;
    font-size: 13px;
}

.sea-nav-search .sea-btn {
    height: 36px;
    padding: 0 16px;
    font-size: 13px;
}

/* ===== 英雄搜索区 ===== */
.sea-hero {
    background: linear-gradient(160deg, #0d1e3a 0%, #0b1628 60%, #091525 100%);
    padding: 60px 20px 50px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.sea-hero::before {
    content: '';
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 300px;
    background: radial-gradient(ellipse, rgba(56,189,248,0.12) 0%, transparent 70%);
    pointer-events: none;
}

.sea-hero-title {
    font-size: clamp(22px, 4vw, 36px);
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
    position: relative;
}

.sea-hero-sub {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 28px;
    position: relative;
}

.sea-hero-search {
    display: flex;
    align-items: center;
    max-width: 620px;
    margin: 0 auto;
    position: relative;
}

.sea-hero-search .sea-input {
    flex: 1;
    height: 52px;
    font-size: 16px;
    border-radius: 12px 0 0 12px;
    border-right: none;
}

.sea-hero-search .sea-btn {
    height: 52px;
    padding: 0 28px;
    font-size: 15px;
    border-radius: 0 12px 12px 0;
    flex-shrink: 0;
}

/* ===== 通用输入框与按钮 ===== */
.sea-input {
    background: rgba(15, 31, 56, 0.8);
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-btn);
    color: var(--text-primary);
    padding: 0 16px;
    font-size: 14px;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
    width: 100%;
}

.sea-input::placeholder {
    color: var(--text-muted);
}

.sea-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.sea-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: linear-gradient(135deg, var(--accent-dim), var(--accent));
    color: #fff;
    border: none;
    border-radius: var(--radius-btn);
    padding: 0 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity var(--transition), box-shadow var(--transition);
    white-space: nowrap;
}

.sea-btn:hover {
    opacity: 0.88;
    box-shadow: var(--shadow-glow);
}

.sea-btn--ghost {
    background: transparent;
    border: 1px solid var(--accent-border);
    color: var(--accent);
}

.sea-btn--ghost:hover {
    background: var(--bg-glass);
    box-shadow: none;
}

/* ===== 玻璃卡片 ===== */
.sea-glass {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-card);
}

/* ===== 视频卡片网格 ===== */
.sea-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}

/* ===== 视频卡片 ===== */
.sea-card {
    background: var(--bg-card);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.sea-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card), var(--shadow-glow);
    border-color: var(--accent);
}

.sea-card-thumb {
    display: block;
    position: relative;
    aspect-ratio: 2/3;
    overflow: hidden;
    background: var(--bg-surface);
}

.sea-card-thumb img {
    transition: transform 0.3s ease;
}

.sea-card:hover .sea-card-thumb img {
    transform: scale(1.05);
}

/* 遮罩渐变 */
.sea-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(11,22,40,0.7) 0%, transparent 50%);
    pointer-events: none;
}

/* 右上角 badge */
.sea-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    background: linear-gradient(135deg, var(--accent-dim), var(--accent));
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 4px;
    line-height: 1.5;
    pointer-events: none;
}

.sea-badge--year {
    position: absolute;
    top: 8px;
    left: 8px;
    background: rgba(0,0,0,0.6);
    color: var(--text-secondary);
    font-size: 11px;
    padding: 2px 7px;
    border-radius: 4px;
    line-height: 1.5;
}

/* 播放图标 */
.sea-card-play-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.sea-card-play-icon::after {
    content: '▶';
    font-size: 36px;
    color: rgba(255,255,255,0.9);
    text-shadow: 0 2px 12px rgba(0,0,0,0.6);
}

.sea-card:hover .sea-card-play-icon {
    opacity: 1;
}

.sea-card-body {
    padding: 10px 12px 12px;
}

.sea-card-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sea-card-title a {
    color: inherit;
    transition: color var(--transition);
}

.sea-card-title a:hover {
    color: var(--accent);
}

.sea-card-meta {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sea-card-desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 5px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

/* 紧凑版卡片（海报比例更高） */
.sea-card--compact .sea-card-thumb {
    aspect-ratio: 2/3;
}

/* ===== 内容区域 ===== */
.sea-main {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    flex: 1;
}

.sea-page-wrap {
    padding-top: 32px;
    padding-bottom: 48px;
}

/* ===== 区块头部 ===== */
.sea-section {
    margin-bottom: 40px;
}

.sea-section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-subtle);
}

.sea-section-kicker {
    display: block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.sea-section-head h2,
.sea-section-head h1 {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    line-height: 1.2;
}

.sea-section-more {
    font-size: 13px;
    color: var(--accent);
    border: 1px solid var(--accent-border);
    padding: 5px 14px;
    border-radius: var(--radius-chip);
    white-space: nowrap;
    transition: background var(--transition);
}

.sea-section-more:hover {
    background: var(--bg-glass);
}

/* ===== 首页 Hero 精选区 ===== */
.sea-spotlight-block {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 16px;
    margin-bottom: 40px;
}

.sea-spotlight-main {
    position: relative;
    border-radius: var(--radius-card);
    overflow: hidden;
    aspect-ratio: 16/7;
    background: var(--bg-surface);
}

.sea-spotlight-backdrop {
    position: absolute;
    inset: 0;
}

.sea-spotlight-backdrop img {
    filter: brightness(0.45) saturate(1.2);
}

.sea-spotlight-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 28px 32px;
    background: linear-gradient(to top, rgba(11,22,40,0.92) 0%, rgba(11,22,40,0.3) 60%, transparent 100%);
}

.sea-spotlight-chips {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.sea-spotlight-chip {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 4px;
    background: rgba(56,189,248,0.18);
    border: 1px solid var(--accent-border);
    color: var(--accent);
}

.sea-spotlight-chip--hot {
    background: linear-gradient(135deg, #0ea5e9, #38bdf8);
    border-color: transparent;
    color: #fff;
}

.sea-spotlight-content h1 {
    font-size: clamp(18px, 3vw, 28px);
    font-weight: 700;
    color: #fff;
    margin-bottom: 6px;
    line-height: 1.25;
}

.sea-spotlight-meta {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.sea-spotlight-summary {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sea-spotlight-actions {
    display: flex;
    gap: 12px;
}

.sea-spotlight-actions .sea-btn {
    height: 40px;
}

/* 精选侧栏 */
.sea-spotlight-side {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sea-side-card {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 10px;
    border-radius: var(--radius-card);
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    transition: border-color var(--transition), background var(--transition);
}

.sea-side-card:hover {
    border-color: var(--accent);
    background: rgba(56,189,248,0.06);
}

.sea-side-thumb {
    position: relative;
    width: 60px;
    flex-shrink: 0;
    aspect-ratio: 2/3;
    border-radius: 8px;
    overflow: hidden;
    background: var(--bg-surface);
    display: block;
}

.sea-side-info {
    flex: 1;
    overflow: hidden;
}

.sea-side-title {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition);
}

.sea-side-title:hover {
    color: var(--accent);
}

.sea-side-meta {
    font-size: 11px;
    color: var(--text-muted);
}

/* ===== 横向书架 ===== */
.sea-shelf {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 14px;
}

/* ===== 分页器 ===== */
.sea-pager {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.sea-pager-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 12px;
    border-radius: var(--radius-chip);
    font-size: 14px;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.sea-pager-link:hover {
    color: var(--accent);
    border-color: var(--accent-border);
    background: var(--bg-glass);
}

.sea-pager-link.is-active {
    background: linear-gradient(135deg, var(--accent-dim), var(--accent));
    color: #fff;
    border-color: transparent;
    font-weight: 600;
    box-shadow: var(--shadow-glow);
}

/* ===== 空状态 ===== */
.sea-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.sea-empty h2 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.sea-empty p {
    font-size: 14px;
}

/* ===== 分类页 Banner ===== */
.sea-category-banner {
    padding: 32px 0 24px;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 24px;
}

.sea-category-banner h1 {
    font-size: 26px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 6px;
}

.sea-banner-meta {
    font-size: 13px;
    color: var(--text-muted);
}

/* ===== 筛选面板 ===== */
.sea-filter-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-card);
    padding: 16px 20px;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sea-filter-group {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.sea-filter-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
    white-space: nowrap;
    padding-top: 4px;
    min-width: 36px;
}

.sea-filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sea-filter-chip {
    font-size: 12px;
    padding: 4px 12px;
    border-radius: var(--radius-chip);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    background: transparent;
    transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.sea-filter-chip:hover {
    color: var(--accent);
    border-color: var(--accent-border);
    background: var(--bg-glass);
}

.sea-filter-chip.is-active {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(56,189,248,0.1);
    font-weight: 600;
}

/* ===== 搜索页 Banner ===== */
.sea-search-banner {
    padding: 32px 0 24px;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sea-search-banner h1 {
    font-size: 26px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.sea-search-inline {
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 500px;
}

.sea-search-inline .sea-input {
    height: 42px;
    font-size: 14px;
}

.sea-search-inline .sea-btn {
    height: 42px;
    flex-shrink: 0;
}

/* ===== 详情页布局 ===== */
.sea-detail-layout {
    display: grid;
    grid-template-columns: 1fr 260px;
    gap: 24px;
    align-items: flex-start;
    padding-top: 24px;
    padding-bottom: 48px;
}

.sea-detail-main {
    min-width: 0;
}

.sea-detail-side {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* 播放面板 */
.sea-player-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-card);
    overflow: hidden;
    margin-bottom: 20px;
    box-shadow: var(--shadow-card);
}

.sea-player-head {
    padding: 16px 20px 12px;
    border-bottom: 1px solid var(--border-subtle);
}

.sea-player-head h1 {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.sea-player-meta {
    font-size: 13px;
    color: var(--text-muted);
}

.sea-player-stage {
    position: relative;
    aspect-ratio: 16/9;
    background: #000;
}

.sea-video-el {
    width: 100%;
    height: 100%;
    display: block;
    background: #000;
    outline: none;
}

.sea-player-empty {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 14px;
}

.sea-player-empty strong {
    font-size: 16px;
    color: var(--text-secondary);
}

.sea-fallback-link {
    display: block;
    padding: 12px 20px;
    background: rgba(56,189,248,0.08);
    border-top: 1px solid var(--border-subtle);
    font-size: 13px;
    color: var(--accent);
    text-align: center;
    transition: background var(--transition);
}

.sea-fallback-link:hover {
    background: rgba(56,189,248,0.14);
}

/* 播放源按钮 */
.sea-source-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 14px 20px;
    border-top: 1px solid var(--border-subtle);
}

.sea-source-btn {
    font-size: 12px;
    padding: 6px 14px;
    border-radius: var(--radius-chip);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    cursor: pointer;
    transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.sea-source-btn:hover,
.sea-source-btn.is-active {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(56,189,248,0.1);
}

.sea-source-btn.is-active {
    font-weight: 600;
}

/* 影片信息面板 */
.sea-info-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-card);
    padding: 20px;
    margin-bottom: 20px;
}

.sea-info-panel h2 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.sea-detail-summary {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.sea-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 20px;
}

.sea-info-grid > div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sea-info-grid span {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sea-info-grid strong {
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 500;
}

/* 海报侧边 */
.sea-poster-panel {
    border-radius: var(--radius-card);
    overflow: hidden;
    background: var(--bg-surface);
    border: 1px solid var(--border-card);
    aspect-ratio: 2/3;
    box-shadow: var(--shadow-card);
}

/* 侧边 tips */
.sea-tips-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-card);
    padding: 16px;
}

.sea-tips-panel h2 {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
}

.sea-note-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sea-note-list li {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
    padding-left: 14px;
    position: relative;
}

.sea-note-list li::before {
    content: '·';
    position: absolute;
    left: 4px;
    color: var(--accent);
    font-size: 18px;
    line-height: 1;
    top: 1px;
}

/* ===== 页脚 ===== */
.sea-footer {
    background: linear-gradient(0deg, #070e1c 0%, #0b1628 100%);
    border-top: 1px solid var(--border-subtle);
    padding: 40px 20px 24px;
    margin-top: auto;
}

.sea-footer-inner {
    max-width: 1280px;
    margin: 0 auto;
}

.sea-footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-bottom: 28px;
}

.sea-footer-block h2 {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 14px;
}

.sea-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.sea-footer-links a {
    font-size: 13px;
    color: var(--text-muted);
    transition: color var(--transition);
}

.sea-footer-links a:hover {
    color: var(--accent);
}

.sea-footer-block p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
}

.sea-footer-meta {
    border-top: 1px solid var(--border-subtle);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 12px;
    color: var(--text-muted);
}

/* ===== 广告占位 ===== */
.sea-ad-slot {
    margin: 16px 0;
}

/* ===== 移动端菜单展开 ===== */
.sea-mobile-nav {
    display: none;
    flex-direction: column;
    background: #0a1830;
    border-top: 1px solid var(--border-subtle);
    padding: 12px 0;
    overflow-y: auto;
    max-height: calc(100vh - var(--nav-h));
}

.sea-mobile-nav .sea-channel-link {
    padding: 12px 24px;
    border-radius: 0;
    font-size: 15px;
    border-bottom: 1px solid var(--border-subtle);
}

.sea-mobile-nav .sea-channel-link:last-child {
    border-bottom: none;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .sea-spotlight-block {
        grid-template-columns: 1fr;
    }

    .sea-spotlight-side {
        flex-direction: row;
        overflow-x: auto;
    }

    .sea-side-card {
        min-width: 200px;
        flex-shrink: 0;
    }

    .sea-detail-layout {
        grid-template-columns: 1fr;
    }

    .sea-detail-side {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .sea-poster-panel {
        width: 160px;
        flex-shrink: 0;
    }

    .sea-tips-panel {
        flex: 1;
    }
}

@media (max-width: 860px) {
    .sea-menu-btn {
        display: flex;
    }

    .sea-channel-nav,
    .sea-nav-search {
        display: none;
    }

    .sea-mobile-nav {
        display: flex;
    }

    /* 汉堡动画：menu-open 时 */
    body.menu-open .sea-menu-btn span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    body.menu-open .sea-menu-btn span:nth-child(2) {
        opacity: 0;
    }

    body.menu-open .sea-menu-btn span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* 未展开时隐藏移动导航 */
    body:not(.menu-open) .sea-mobile-nav {
        display: none;
    }

    .sea-hero {
        padding: 40px 20px 36px;
    }

    .sea-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 12px;
    }

    .sea-shelf {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .sea-footer-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .sea-info-grid {
        grid-template-columns: 1fr;
    }

    .sea-detail-side {
        flex-direction: column;
    }

    .sea-poster-panel {
        width: 100%;
        max-width: 200px;
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .sea-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }

    .sea-shelf {
        grid-template-columns: repeat(3, 1fr);
    }

    .sea-spotlight-content {
        padding: 16px;
    }

    .sea-spotlight-actions {
        flex-direction: column;
    }

    .sea-spotlight-actions .sea-btn {
        width: 100%;
    }

    .sea-hero-search {
        flex-direction: column;
    }

    .sea-hero-search .sea-input {
        border-radius: var(--radius-card);
        border-right: 1px solid var(--accent-border);
        width: 100%;
    }

    .sea-hero-search .sea-btn {
        border-radius: var(--radius-card);
        width: 100%;
    }

    .sea-pager-link {
        min-width: 32px;
        height: 32px;
        font-size: 13px;
    }
}

/* 精彩影评区块 */
.sea-review-panel {
    background: var(--bg-glass);
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-card);
    padding: 24px 28px;
    margin-top: 24px;
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(8px);
}

.sea-review-panel h2 {
    font-size: 18px;
    color: var(--text-primary);
    margin: 6px 0 14px;
}

.sea-review-text {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
    background: rgba(56, 189, 248, 0.05);
    border-left: 3px solid var(--accent);
    padding: 14px 18px;
    border-radius: 0 6px 6px 0;
    margin: 0;
}

/* 折叠按钮样式 */
.filter-toggle-btn { display:inline-block; margin:6px 0 4px; padding:4px 14px; font-size:12px; cursor:pointer; background:rgba(255,255,255,0.08); border:1px solid rgba(255,255,255,0.15); border-radius:4px; color:#aaa; }
.filter-toggle-btn:hover { color:#fff; border-color:rgba(255,255,255,0.3); }