/* Cascade 模板 - 瀑布流布局，浮动操作栏，无传统导航栏，框架结构完全不同 */
:root {
    --cascade-bg: #0a0e1a;
    --cascade-bg2: #131722;
    --cascade-card: #1a1f2e;
    --cascade-primary: #6366f1;
    --cascade-primary-hover: #818cf8;
    --cascade-text: #e2e8f0;
    --cascade-text2: #94a3b8;
    --cascade-text3: #64748b;
    --cascade-border: rgba(255,255,255,0.1);
    --cascade-radius: 12px;
    --cascade-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

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

.cascade-body {
    font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    background: var(--cascade-bg);
    color: var(--cascade-text);
    line-height: 1.6;
    min-height: 100vh;
}

.cascade-app {
    min-height: 100vh;
    position: relative;
}

/* 浮动操作栏 */
.cascade-fab-bar {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cascade-fab {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--cascade-card);
    border: 1px solid var(--cascade-border);
    color: var(--cascade-text);
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    cursor: pointer;
    box-shadow: var(--cascade-shadow);
    transition: all .2s;
}

.cascade-fab:hover {
    background: var(--cascade-primary);
    color: #fff;
    transform: scale(1.1);
}

.cascade-fab-home { background: var(--cascade-primary); color: #fff; }

/* 搜索浮层 */
.cascade-search-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.cascade-search-overlay.is-open { display: flex; }

.cascade-search-box {
    width: 90%;
    max-width: 600px;
    background: var(--cascade-card);
    border-radius: var(--cascade-radius);
    padding: 24px;
    box-shadow: var(--cascade-shadow);
}

.cascade-search-form {
    display: flex;
    gap: 12px;
    position: relative;
}

.cascade-search-input {
    flex: 1;
    padding: 14px 18px;
    background: var(--cascade-bg2);
    border: 1px solid var(--cascade-border);
    border-radius: var(--cascade-radius);
    color: var(--cascade-text);
    font-size: 16px;
}

.cascade-search-submit {
    padding: 14px 24px;
    background: var(--cascade-primary);
    border: none;
    border-radius: var(--cascade-radius);
    color: #fff;
    font-size: 16px;
    cursor: pointer;
}

.cascade-search-close {
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--cascade-text);
    font-size: 20px;
    cursor: pointer;
}

/* 侧边抽屉 */
.cascade-drawer {
    position: fixed;
    inset: 0;
    z-index: 1500;
    pointer-events: none;
}

.cascade-drawer.is-open { pointer-events: auto; }

.cascade-drawer-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.6);
    opacity: 0;
    transition: opacity .3s;
}

.cascade-drawer.is-open .cascade-drawer-backdrop { opacity: 1; }

.cascade-drawer-content {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 320px;
    max-width: 85vw;
    background: var(--cascade-card);
    box-shadow: -4px 0 20px rgba(0,0,0,0.5);
    transform: translateX(100%);
    transition: transform .3s;
    display: flex;
    flex-direction: column;
}

.cascade-drawer.is-open .cascade-drawer-content { transform: translateX(0); }

.cascade-drawer-header {
    padding: 20px;
    border-bottom: 1px solid var(--cascade-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cascade-drawer-title {
    font-size: 18px;
    font-weight: 700;
}

.cascade-drawer-close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--cascade-text);
    font-size: 20px;
    cursor: pointer;
}

.cascade-drawer-nav {
    flex: 1;
    overflow-y: auto;
    padding: 12px 0;
}

.cascade-drawer-link {
    display: block;
    padding: 12px 20px;
    color: var(--cascade-text2);
    text-decoration: none;
    transition: color .2s, background .2s;
}

.cascade-drawer-link:hover,
.cascade-drawer-link.is-active {
    color: var(--cascade-primary);
    background: rgba(99, 102, 241, 0.1);
}

/* 主内容 */
.cascade-main {
    padding: 20px;
    padding-right: 100px; /* 为浮动按钮留空间 */
}

.cascade-content {
    max-width: 1400px;
    margin: 0 auto;
}

/* Banner 轮播 */
.cascade-banner-wrap {
    margin-bottom: 48px;
    position: relative;
    overflow: hidden;
    border-radius: var(--cascade-radius);
    background: var(--cascade-card);
    border: 1px solid var(--cascade-border);
    box-shadow: var(--cascade-shadow);
}

.cascade-banner-track {
    display: flex;
    transition: transform 0.4s ease-out;
    width: calc(var(--banner-total, 1) * 100%);
}

.cascade-banner-slide {
    flex: 0 0 calc(100% / var(--banner-total, 1));
    width: calc(100% / var(--banner-total, 1));
    min-width: 0;
    display: flex;
    flex-wrap: wrap;
    text-decoration: none;
    color: inherit;
    border-radius: 0;
    overflow: hidden;
    background: transparent;
    transition: none;
}

.cascade-banner-slide:hover .cascade-banner-cta { background: var(--cascade-primary-hover); }

.cascade-banner-img {
    position: relative;
    width: 100%;
    max-width: 500px;
    aspect-ratio: 16/10;
    flex-shrink: 0;
    overflow: hidden;
}

.cascade-banner-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cascade-banner-play {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: rgba(99, 102, 241, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #fff;
}

.cascade-banner-text {
    flex: 1;
    min-width: 300px;
    padding: 32px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.cascade-banner-tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(99, 102, 241, 0.2);
    color: var(--cascade-primary);
    font-size: 13px;
    border-radius: 8px;
    margin-bottom: 14px;
    align-self: flex-start;
}

.cascade-banner-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 14px;
    line-height: 1.3;
}

.cascade-banner-desc {
    color: var(--cascade-text2);
    font-size: 15px;
    margin-bottom: 18px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.6;
}

.cascade-banner-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    color: var(--cascade-text3);
    font-size: 14px;
    margin-bottom: 20px;
}

.cascade-banner-cta {
    display: inline-block;
    padding: 12px 28px;
    background: var(--cascade-primary);
    color: #fff;
    font-size: 15px;
    border-radius: var(--cascade-radius);
    align-self: flex-start;
    transition: background .2s;
}

.cascade-banner-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background: rgba(26, 31, 46, 0.8);
    color: var(--cascade-text);
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    box-shadow: var(--cascade-shadow);
    z-index: 2;
    transition: background .2s, color .2s;
}

.cascade-banner-btn:hover {
    background: var(--cascade-primary);
    color: #fff;
}

.cascade-banner-prev { left: 16px; }
.cascade-banner-next { right: 16px; }

.cascade-banner-dots {
    position: absolute;
    bottom: 20px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: 10px;
    z-index: 2;
}

.cascade-banner-dot {
    width: 10px;
    height: 10px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    padding: 0;
    transition: background .2s, transform .2s;
}

.cascade-banner-dot:hover {
    background: rgba(255, 255, 255, 0.6);
}

.cascade-banner-dot.is-active {
    background: var(--cascade-primary);
    transform: scale(1.3);
}

/* 区块标题 */
.cascade-section {
    margin-bottom: 48px;
}

.cascade-section-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--cascade-border);
}

.cascade-section-title a {
    color: var(--cascade-text);
    text-decoration: none;
}

.cascade-section-title a:hover { color: var(--cascade-primary); }

/* 瀑布流布局 */
.cascade-masonry {
    column-count: 4;
    column-gap: 20px;
}

.cascade-item {
    break-inside: avoid;
    margin-bottom: 20px;
    background: var(--cascade-card);
    border-radius: var(--cascade-radius);
    overflow: hidden;
    border: 1px solid var(--cascade-border);
    transition: transform .2s, box-shadow .2s;
}

.cascade-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--cascade-shadow);
}

.cascade-item-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.cascade-item-pic {
    position: relative;
    width: 100%;
    overflow: hidden;
    background: var(--cascade-bg2);
}

.cascade-item-small .cascade-item-pic { aspect-ratio: 2/3; }
.cascade-item-medium .cascade-item-pic { aspect-ratio: 3/4; }
.cascade-item-large .cascade-item-pic { aspect-ratio: 16/10; }

.cascade-item-pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cascade-item-play {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 56px;
    height: 56px;
    background: rgba(99, 102, 241, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
    opacity: 0;
    transition: opacity .2s;
}

.cascade-item:hover .cascade-item-play { opacity: 1; }

.cascade-item-score {
    position: absolute;
    top: 8px;
    left: 8px;
    padding: 4px 10px;
    background: rgba(0,0,0,0.7);
    color: #ffc107;
    font-size: 12px;
    border-radius: 6px;
}

.cascade-item-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 4px 10px;
    background: var(--cascade-primary);
    color: #fff;
    font-size: 11px;
    border-radius: 6px;
}

.cascade-item-num {
    position: absolute;
    bottom: 8px;
    right: 8px;
    padding: 4px 10px;
    background: rgba(0,0,0,0.7);
    color: #fff;
    font-size: 11px;
    border-radius: 6px;
}

.cascade-item-info {
    padding: 14px;
}

.cascade-item-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.cascade-item-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    color: var(--cascade-text3);
    font-size: 12px;
}

/* 列表页 */
.cascade-list-head {
    margin-bottom: 32px;
}

.cascade-list-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.cascade-list-sub {
    color: var(--cascade-text3);
    font-size: 14px;
}

.cascade-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--cascade-text3);
}

/* 分页 */
.cascade-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
    padding-top: 32px;
}

.cascade-pag-btn {
    padding: 12px 24px;
    background: var(--cascade-primary);
    color: #fff;
    text-decoration: none;
    border-radius: var(--cascade-radius);
    font-size: 14px;
}

.cascade-pag-btn:hover { background: var(--cascade-primary-hover); color: #fff; }

.cascade-pag-info {
    color: var(--cascade-text2);
    font-size: 14px;
}

/* 详情页 */
.cascade-detail {
    max-width: 1000px;
    margin: 0 auto;
}

.cascade-detail-main {
    margin-bottom: 48px;
}

.cascade-detail-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.4;
}

.cascade-detail-ep {
    display: block;
    font-size: 18px;
    font-weight: 500;
    color: var(--cascade-primary);
    margin-top: 8px;
}

.cascade-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 20px;
    margin-bottom: 24px;
    font-size: 14px;
    color: var(--cascade-text2);
}

.cascade-meta-tag {
    padding: 6px 12px;
    background: rgba(99, 102, 241, 0.15);
    color: var(--cascade-primary);
    border-radius: 8px;
}

.cascade-detail-desc {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--cascade-border);
}

.cascade-detail-desc h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

.cascade-detail-desc p {
    font-size: 15px;
    color: var(--cascade-text2);
    line-height: 1.8;
}

/* 播放器 */
.cascade-player {
    margin-bottom: 32px;
}

.cascade-player-wrap {
    position: relative;
    border-radius: var(--cascade-radius);
    overflow: hidden;
    background: #000;
    border: 1px solid var(--cascade-border);
    margin-bottom: 20px;
}

.cascade-player-box {
    width: 100%;
    aspect-ratio: 16/9;
}

.cascade-episode-nav {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.cascade-ep-nav-btn {
    flex: 1;
    min-width: 140px;
    padding: 12px 18px;
    background: var(--cascade-primary);
    color: #fff;
    text-decoration: none;
    border-radius: var(--cascade-radius);
    font-size: 14px;
    text-align: center;
    transition: background .2s;
}

.cascade-ep-nav-btn span { display: block; font-size: 12px; opacity: .9; }

.cascade-ep-nav-btn:hover { background: var(--cascade-primary-hover); color: #fff; }

.cascade-ep-nav-btn.is-disabled {
    background: var(--cascade-bg2);
    color: var(--cascade-text3);
    cursor: default;
    pointer-events: none;
}

.cascade-episode {
    padding-top: 20px;
    border-top: 1px solid var(--cascade-border);
}

.cascade-episode-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.cascade-episode-title {
    font-size: 18px;
    font-weight: 700;
}

.cascade-episode-sort {
    padding: 8px 16px;
    background: var(--cascade-bg2);
    border: 1px solid var(--cascade-border);
    border-radius: 8px;
    color: var(--cascade-text2);
    font-size: 13px;
    cursor: pointer;
}

.cascade-episode-sort:hover { background: rgba(99, 102, 241, 0.1); color: var(--cascade-primary); }

.cascade-episode-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cascade-episode-group {
    border-radius: 8px;
    padding: 16px;
    background: var(--cascade-bg2);
    border: 1px solid var(--cascade-border);
}

.cascade-episode-line {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--cascade-text2);
}

.cascade-episode-items {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.cascade-ep-item {
    padding: 10px 16px;
    background: var(--cascade-card);
    border: 1px solid var(--cascade-border);
    border-radius: 8px;
    color: var(--cascade-text2);
    text-decoration: none;
    font-size: 13px;
    transition: border-color .2s, color .2s, background .2s;
}

.cascade-ep-item:hover,
.cascade-ep-item.is-active {
    border-color: var(--cascade-primary);
    color: var(--cascade-primary);
    background: rgba(99, 102, 241, 0.1);
}

.cascade-ep-btn {
    cursor: pointer;
    font-family: inherit;
}

/* 页脚 */
.cascade-footer {
    background: var(--cascade-bg2);
    border-top: 1px solid var(--cascade-border);
    margin-top: 60px;
}

.cascade-footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 32px 20px;
    text-align: center;
}

.cascade-footer-text {
    font-size: 13px;
    color: var(--cascade-text3);
}

/* 响应式 */
@media (max-width: 1200px) {
    .cascade-masonry { column-count: 3; }
    .cascade-main { padding-right: 90px; }
}

@media (max-width: 768px) {
    .cascade-banner-text { padding: 24px 28px; min-width: 0; }
    .cascade-banner-title { font-size: 22px; }
    .cascade-banner-desc { font-size: 14px; }
    .cascade-banner-img { max-width: 100%; }
    .cascade-banner-btn { width: 40px; height: 40px; font-size: 24px; }
    .cascade-banner-prev { left: 12px; }
    .cascade-banner-next { right: 12px; }
    .cascade-masonry { column-count: 2; column-gap: 14px; }
    .cascade-main { padding: 16px; padding-right: 80px; }
    .cascade-fab-bar { right: 12px; gap: 10px; }
    .cascade-fab { width: 48px; height: 48px; font-size: 18px; }
    .cascade-section-title { font-size: 20px; }
    .cascade-detail-title { font-size: 22px; }
}

@media (max-width: 480px) {
    .cascade-banner-text { padding: 20px; }
    .cascade-banner-title { font-size: 18px; }
    .cascade-banner-desc { -webkit-line-clamp: 2; }
    .cascade-banner-meta { gap: 12px; font-size: 12px; }
    .cascade-banner-cta { padding: 10px 20px; font-size: 14px; }
    .cascade-banner-btn { width: 36px; height: 36px; font-size: 20px; }
    .cascade-banner-prev { left: 8px; }
    .cascade-banner-next { right: 8px; }
    .cascade-banner-dots { bottom: 12px; gap: 8px; }
    .cascade-masonry { column-count: 1; }
    .cascade-main { padding-right: 70px; }
    .cascade-fab { width: 44px; height: 44px; font-size: 16px; }
    .cascade-item-info { padding: 12px; }
    .cascade-item-title { font-size: 14px; }
}