/* 核心变量系统 - 继承首页视觉契约 */
:root {
    --bg-core: #050608;
    --bg-surface: #0d1017;
    --bg-elevated: #151923;
    --primary: #851af6;
    --primary-glow: rgba(133, 26, 246, 0.4);
    --primary-dim: rgba(133, 26, 246, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dark: #475569;
    --radius-lg: 24px;
    --radius-md: 16px;
    --max-width: 1320px;
    --transition: all 0.25s ease;
}

/* 基础重置与排版规范 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-core);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    word-break: break-word;
    overflow-wrap: break-word;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img, svg {
    max-width: 100%;
    display: block;
}

/* 容器与布局基础 */
.tunnel {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.pack {
    display: flex;
    flex-wrap: wrap;
    min-width: 0;
}

.pack > * {
    min-width: 0;
}

/* 强制排版规则 */
.apex {
    white-space: normal;
    color: var(--text-main);
    font-weight: 800;
    letter-spacing: -0.02em;
}

.cipher {
    color: var(--text-muted);
    word-break: keep-all;
    font-size: 1.125rem;
}

/* --- 强制复用：导航栏样式 --- */
.crown {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(5, 6, 8, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 16px 0;
}

.steer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.seal {
    display: block;
    height: 32px;
}

.seal img {
    height: 100%;
    object-fit: contain;
}

.mesh {
    display: flex;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
}

.mesh-wire {
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
}

.mesh-wire:hover,
.mesh-wire.active {
    color: var(--text-main);
    text-shadow: 0 0 12px rgba(255, 255, 255, 0.3);
}

.warp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #a14cfb, #851af6);
    color: #fff;
    font-weight: 600;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 20px var(--primary-glow);
    cursor: pointer;
}

.warp:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px var(--primary-glow);
}

/* --- 页面角色变体：Editorial Hero (非对称网格) --- */
.cloak {
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

/* 背景光晕点缀 */
.cloak::before {
    content: '';
    position: absolute;
    top: -20%;
    left: -10%;
    width: 60%;
    height: 80%;
    background: radial-gradient(circle, var(--primary-dim) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
}

.cloak .tunnel {
    position: relative;
    z-index: 1;
}

.cloak-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 80px;
    align-items: center;
}

.apex-mega {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 32px;
    background: linear-gradient(180deg, #fff 0%, #a1a1aa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cloak .cipher {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-muted);
    max-width: 90%;
    margin-bottom: 40px;
}

/* 非对称网格右侧：排版视觉焦点 (纯CSS/文本构成) */
.layer-typographic {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 48px;
    box-shadow: inset 0 0 40px rgba(0,0,0,0.5), 0 20px 40px rgba(0,0,0,0.4);
    position: relative;
}

.layer-typographic::after {
    content: '4K';
    position: absolute;
    top: -20px;
    right: -10px;
    font-size: 12rem;
    font-weight: 900;
    color: var(--bg-elevated);
    z-index: 0;
    line-height: 1;
    pointer-events: none;
}

.layer-data {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.band {
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-left: 3px solid var(--primary);
    padding-left: 20px;
}

.band-apex {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.band-cipher {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-main);
}

/* --- 页面角色变体：4K流媒体加速引擎 (Aside detail) --- */
.vault {
    padding: 100px 0;
    background: linear-gradient(to bottom, var(--bg-core), var(--bg-surface));
    border-top: 1px solid rgba(255, 255, 255, 0.02);
}

.vault-crown {
    text-align: center;
    margin-bottom: 64px;
}

.vault-crown .apex {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
}

.vault-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.node {
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    padding: 40px 32px;
    border: 1px solid rgba(255, 255, 255, 0.03);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.node:hover {
    transform: translateY(-8px);
    border-color: rgba(133, 26, 246, 0.3);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4), inset 0 0 20px rgba(133, 26, 246, 0.05);
}

.node-glyph {
    width: 56px;
    height: 56px;
    background: rgba(133, 26, 246, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--primary);
}

.node-glyph svg {
    width: 28px;
    height: 28px;
}

.node .apex {
    font-size: 1.25rem;
    margin-bottom: 16px;
}

/* --- 页面角色变体：一键解锁热门影视区 (Section detail) --- */
.nexus {
    padding: 100px 0;
    background: var(--bg-surface);
}

.nexus-crown {
    margin-bottom: 64px;
    max-width: 600px;
}

.nexus-crown .apex {
    font-size: clamp(2rem, 4vw, 3rem);
}

.nexus-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.pod {
    position: relative;
    padding: 40px;
    background: var(--bg-core);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.02);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 240px;
    overflow: hidden;
    transition: var(--transition);
}

.pod:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.pod-watermark {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 6rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.02);
    line-height: 1;
    transition: var(--transition);
}

.pod:hover .pod-watermark {
    color: rgba(133, 26, 246, 0.05);
    transform: scale(1.05);
}

.pod .apex {
    font-size: 1.5rem;
    position: relative;
    z-index: 1;
    margin-bottom: 12px;
}

.pod .cipher {
    position: relative;
    z-index: 1;
    font-size: 1rem;
    margin: 0;
}

/* --- 页面角色变体：跨区看剧常见问题 (Article faq) --- */
.zone {
    padding: 100px 0;
    background: var(--bg-core);
}

.zone-layer {
    max-width: 800px;
    margin: 0 auto;
}

.zone-crown {
    text-align: center;
    margin-bottom: 56px;
}

.zone-crown .apex {
    font-size: clamp(2rem, 4vw, 3rem);
}

.relay {
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    border: 1px solid rgba(255, 255, 255, 0.02);
    transition: var(--transition);
}

.relay:hover {
    background: var(--bg-elevated);
    border-color: rgba(255, 255, 255, 0.08);
}

.relay-apex {
    padding: 24px 32px;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-main);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.relay-apex::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 300;
    transition: var(--transition);
}

.relay:hover .relay-apex::after {
    transform: rotate(90deg);
}

.relay-cipher {
    padding: 0 32px 32px;
    color: var(--text-muted);
    font-size: 1rem;
    border-top: 1px solid transparent;
}

.relay:hover .relay-cipher {
    border-top-color: rgba(255, 255, 255, 0.05);
    padding-top: 24px;
}

/* --- 底部品牌区 --- */
.tail {
    background: #000;
    padding: 64px 0 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.root {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 24px;
}

.root-brand {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-main);
}

.anchor-pack {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    justify-content: center;
}

.anchor {
    color: var(--text-dark);
    font-size: 0.875rem;
}

.anchor:hover {
    color: var(--text-muted);
}

.tail-cipher {
    color: var(--text-dark);
    font-size: 0.875rem;
    margin-top: 16px;
}

/* 响应式断点 */
@media (max-width: 1024px) {
    .cloak-grid {
        grid-template-columns: 1fr;
        gap: 56px;
    }
    
    .layer-typographic::after {
        font-size: 8rem;
        top: -10px;
        right: 10px;
    }
}

@media (max-width: 768px) {
    .mesh {
        display: none; /* 移动端简化导航栏 */
    }
    
    .cloak {
        padding: 80px 0 60px;
    }
    
    .vault, .nexus, .zone {
        padding: 60px 0;
    }
    
    .vault-grid, .nexus-grid {
        grid-template-columns: 1fr;
    }
    
    .node {
        padding: 32px 24px;
    }
    
    .pod {
        min-height: 200px;
        padding: 32px;
    }
    
    .relay-apex {
        padding: 20px 24px;
    }
    
    .relay-cipher {
        padding: 0 24px 24px;
    }
}

.steer-crown .steer-pack{
            display: flex;
            flex-wrap: wrap;
        }

.steer-crown .steer-pack > *{
            min-width: 0;
        }

.steer-crown .steer-tunnel{
            max-width: 1320px;
            margin: 0 auto;
            padding-left: 5vw;
            padding-right: 5vw;
        }

.steer-crown{
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(5, 6, 8, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #232836;
            padding: 16px 0;
        }

.steer-crown .steer-steer{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            min-width: 0;
        }

.steer-crown .steer-seal{
            display: flex;
            align-items: center;
            min-width: 0;
        }

.steer-crown .steer-seal img{
            height: 32px;
            width: auto;
        }

.steer-crown .steer-mesh{
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
            min-width: 0;
        }

.steer-crown .steer-mesh-wire{
            color: #94a3b8;
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.25s ease;
            padding: 8px 12px;
            border-radius: 8px;
        }

.steer-crown .steer-mesh-wire:hover, .steer-crown .steer-mesh-wire.active{
            color: #f8fafc;
            background: rgba(255, 255, 255, 0.05);
        }

.steer-crown .steer-mesh-wire.active{
            color: #851af6;
        }

.steer-crown .steer-warp{
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            background: linear-gradient(135deg, #a14cfb, #851af6);
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            border-radius: 16px;
            transition: all 0.25s ease;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 8px 20px rgba(133, 26, 246, 0.4);
            cursor: pointer;
        }

.steer-crown .steer-warp:hover{
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(133, 26, 246, 0.6);
            background: linear-gradient(135deg, #b570fb, #9333f7);
        }

@media (max-width: 768px){.steer-crown .steer-mesh{
                display: none; 
            }

.steer-crown .steer-tunnel{
                padding-left: 20px;
                padding-right: 20px;
            }}

.steer-crown {
    background: rgb(5, 6, 8);
    background-image: none;
}

.anchor-tail {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    word-break: break-word;
    color: var(--text-main);
}
.anchor-tail,
.anchor-tail *,
.anchor-tail *::before,
.anchor-tail *::after {
    box-sizing: border-box;
}

.anchor-tail [role="navigation"],
.anchor-tail div,
.anchor-tail section,
.anchor-tail article,
.anchor-tail aside,
.anchor-tail p,
.anchor-tail h1,
.anchor-tail h2,
.anchor-tail h3,
.anchor-tail h4,
.anchor-tail h5,
.anchor-tail h6,
.anchor-tail a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

.anchor-tail p,
.anchor-tail h1,
.anchor-tail h2,
.anchor-tail h3,
.anchor-tail h4,
.anchor-tail h5,
.anchor-tail h6 {
    text-decoration: none;
}

.anchor-tail img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

.anchor-tail {
    box-shadow: none;
    filter: none;
    text-shadow: none;
    background-image: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.anchor-tail a,
.anchor-tail a:hover,
.anchor-tail a:focus,
.anchor-tail a:active {
    background: transparent;
    box-shadow: none;
    outline: none;
    text-decoration: none;
}

.anchor-tail .anchor-tunnel{
            max-width: 1320px;
            margin: 0 auto;
            padding-left: 5vw;
            padding-right: 5vw;
        }

.anchor-tail{
            background: #000;
            padding: 80px 0 40px;
            border-top: 1px solid #232836;
        }

.anchor-tail .anchor-anchor{
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 60px;
            margin-bottom: 60px;
        }

.anchor-tail .anchor-anchor-brand{
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.05em;
            margin-bottom: 16px;
            display: inline-block;
        }

.anchor-tail .anchor-anchor-desc{
            color: #94a3b8;
            font-size: 0.95rem;
            max-width: 300px;
        }

.anchor-tail .anchor-anchor-col h4{
            color: #fff;
            font-size: 1.05rem;
            margin-bottom: 20px;
            font-weight: 600;
        }

.anchor-tail .anchor-anchor-wire{
            display: block;
            color: #94a3b8;
            margin-bottom: 12px;
            font-size: 0.95rem;
            transition: all 0.25s ease;
        }

.anchor-tail .anchor-anchor-wire:hover{
            color: #851af6;
        }

.anchor-tail .anchor-crypt{
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 32px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            color: #64748b;
            font-size: 0.85rem;
        }

@media (max-width: 1024px){.anchor-tail .anchor-anchor{
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }}

@media (max-width: 768px){.anchor-tail .anchor-anchor{
                grid-template-columns: 1fr;
            }

.anchor-tail .anchor-crypt{
                flex-direction: column;
                gap: 16px;
                text-align: center;
            }

.anchor-tail .anchor-tunnel{
                padding-left: 20px;
                padding-right: 20px;
            }}