/**
 * AI 资讯子站：独立深色科技感视觉风格
 * 设计理念：数据仪表盘 + 信息流 + 矩阵风格
 */

/* ========== 全局变量：科技蓝主题 ========== */
:root {
    --ai-bg-primary: #0a0e1a;
    --ai-bg-secondary: #111827;
    --ai-bg-elevated: #1a2332;
    --ai-border: #1e293b;
    --ai-border-bright: #334155;
    --ai-accent-blue: #3b82f6;
    --ai-accent-cyan: #06b6d4;
    --ai-accent-purple: #8b5cf6;
    --ai-text-primary: #f1f5f9;
    --ai-text-secondary: #94a3b8;
    --ai-text-muted: #64748b;
    --ai-glow-blue: rgba(59, 130, 246, 0.3);
    --ai-glow-cyan: rgba(6, 182, 212, 0.3);
}

body.ai-news-site .ai-layout,
body.ai-news-site .ai-nav,
body.ai-news-site #daily-feed {
    position: relative;
    z-index: 6;
}

/* ========== 背景网格效果 ========== */
body.ai-news-site {
    background: var(--ai-bg-primary);
    position: relative;
}

body.ai-news-site::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(var(--ai-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--ai-border) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
    pointer-events: none;
    z-index: 0;
}

body.ai-news-site::after {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* 顶部「数据流」加载条 */
.ai-route-progress {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    z-index: 10000;
    pointer-events: none;
    background: transparent;
    overflow: hidden;
}

.ai-route-progress::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 42%;
    background: linear-gradient(90deg, transparent, var(--ai-accent-cyan), var(--ai-accent-blue));
    opacity: 0;
    filter: drop-shadow(0 0 8px var(--ai-glow-cyan));
}

.ai-route-progress.is-active::after {
    opacity: 1;
    animation: ai-route-scan 0.95s linear infinite;
}

@keyframes ai-route-scan {
    0% { transform: translateX(-120%); }
    100% { transform: translateX(320%); }
}

/* ========== 导航栏：数据仪表盘风格 ========== */
body.ai-news-site .ai-nav {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    background: linear-gradient(180deg, var(--ai-bg-secondary) 0%, var(--ai-bg-primary) 100%) !important;
    border-bottom: 2px solid var(--ai-border-bright) !important;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5), 0 0 40px var(--ai-glow-blue);
    backdrop-filter: blur(12px);
    position: relative;
}

body.ai-news-site .ai-nav::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--ai-accent-cyan), transparent);
    opacity: 0.5;
}

body.ai-news-site .ai-nav-brand {
    font-family: 'Orbitron', 'Arial Black', sans-serif;
    font-size: 1.3rem;
    font-weight: 900;
    color: var(--ai-text-primary) !important;
    text-shadow:
        0 0 20px var(--ai-glow-cyan),
        0 0 40px var(--ai-glow-blue);
    letter-spacing: 0.1em;
    position: relative;
}

body.ai-news-site .ai-nav-brand::before {
    content: '▸';
    color: var(--ai-accent-cyan);
    margin-right: 8px;
    animation: pulse-arrow 2s ease-in-out infinite;
}

@keyframes pulse-arrow {
    0%, 100% { opacity: 1; transform: translateX(0); }
    50% { opacity: 0.5; transform: translateX(4px); }
}

body.ai-news-site .ai-nav-links a {
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--ai-text-secondary) !important;
    padding: 6px 12px;
    border-radius: 4px;
    transition: all 0.2s ease;
    position: relative;
}

body.ai-news-site .ai-nav-links a::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid transparent;
    border-radius: 4px;
    transition: all 0.2s ease;
}

body.ai-news-site .ai-nav-links a:hover {
    color: var(--ai-accent-cyan) !important;
    background: rgba(6, 182, 212, 0.1);
}

body.ai-news-site .ai-nav-links a:hover::before {
    border-color: var(--ai-accent-cyan);
    box-shadow: 0 0 12px var(--ai-glow-cyan);
}

body.ai-news-site .ai-nav-links a.active {
    color: var(--ai-text-primary) !important;
    background: rgba(59, 130, 246, 0.15);
}

body.ai-news-site .ai-nav-links a.active::before {
    border-color: var(--ai-accent-blue);
    box-shadow: 0 0 16px var(--ai-glow-blue);
}

/* ========== 侧栏：数据目录风格 ========== */
body.ai-news-site .ai-sidebar {
    background: var(--ai-bg-secondary);
    border-right: 1px solid var(--ai-border-bright);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.3);
}

body.ai-news-site .ai-sidebar .month-title {
    color: var(--ai-accent-cyan);
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 8px 16px;
    border-left: 3px solid var(--ai-accent-cyan);
    background: rgba(6, 182, 212, 0.05);
}

body.ai-news-site .ai-sidebar .day-list a {
    color: var(--ai-text-secondary) !important;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    padding: 8px 12px;
    margin: 2px 8px;
    border-radius: 4px;
    border-left: 2px solid transparent;
    transition: all 0.2s ease;
}

body.ai-news-site .ai-sidebar .day-list a:hover {
    background: rgba(59, 130, 246, 0.1) !important;
    color: var(--ai-accent-blue) !important;
    border-left-color: var(--ai-accent-blue);
    transform: translateX(4px);
}

body.ai-news-site .ai-sidebar .day-list a.is-current {
    background: linear-gradient(90deg, rgba(6, 182, 212, 0.15), transparent) !important;
    color: var(--ai-accent-cyan) !important;
    border-left-color: var(--ai-accent-cyan);
    font-weight: 700;
    box-shadow: 0 0 12px var(--ai-glow-cyan);
}

/* ========== 主内容区：信息流风格 ========== */
body.ai-news-site .ai-main {
    background: var(--ai-bg-primary);
}

body.ai-news-site .ai-detail-toolbar {
    background: var(--ai-bg-elevated);
    border: 1px solid var(--ai-border);
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

body.ai-news-site .ai-nav-mini button {
    border: 1px solid var(--ai-border-bright);
    background: var(--ai-bg-secondary);
    color: var(--ai-text-primary);
    border-radius: 6px;
    padding: 8px 14px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

body.ai-news-site .ai-nav-mini button::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

body.ai-news-site .ai-nav-mini button:hover:not(:disabled) {
    border-color: var(--ai-accent-blue);
    color: var(--ai-accent-cyan);
    box-shadow: 0 0 16px var(--ai-glow-blue);
}

body.ai-news-site .ai-nav-mini button:hover:not(:disabled)::before {
    transform: translateX(100%);
}

body.ai-news-site .ai-nav-mini button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ========== 文章卡片样式 ========== */
body.ai-news-site .news-item {
    background: var(--ai-bg-elevated);
    border: 1px solid var(--ai-border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

body.ai-news-site .news-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--ai-accent-cyan), var(--ai-accent-blue));
    opacity: 0;
    transition: opacity 0.3s ease;
}

body.ai-news-site .news-item:hover {
    border-color: var(--ai-border-bright);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.15);
    transform: translateY(-2px);
}

body.ai-news-site .news-item:hover::before {
    opacity: 1;
}

/* ========== 关于站点卡片 ========== */
body.ai-news-site .ai-about-site {
    background: var(--ai-bg-elevated);
    border: 1px solid var(--ai-border-bright);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

body.ai-news-site .ai-about-site summary {
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.1), transparent);
    color: var(--ai-accent-blue);
    font-weight: 700;
    border-bottom: 1px solid var(--ai-border);
}

body.ai-news-site .ai-about-site summary:hover {
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.15), transparent);
}

/* ========== 独立日报页顶栏 ========== */
body.ai-news-site .ai-article-chrome {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: linear-gradient(180deg, rgba(10, 14, 26, 0.98) 0%, rgba(17, 24, 39, 0.95) 100%);
    border-bottom: 2px solid var(--ai-border-bright);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5), 0 0 40px var(--ai-glow-blue);
    backdrop-filter: blur(16px);
}

body.ai-news-site:has(.ai-article-chrome) {
    padding-top: 52px;
}

.ai-article-chrome-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 10px 20px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 20px;
}

.ai-ac-brand {
    font-family: 'Orbitron', 'Arial Black', sans-serif;
    font-size: 0.85rem;
    font-weight: 900;
    color: var(--ai-accent-cyan);
    text-decoration: none;
    letter-spacing: 0.1em;
    text-shadow: 0 0 12px var(--ai-glow-cyan);
    transition: all 0.2s ease;
}

.ai-ac-brand:hover {
    text-shadow: 0 0 20px var(--ai-glow-cyan), 0 0 40px var(--ai-glow-blue);
}

.ai-ac-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.ai-ac-nav a {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--ai-text-secondary);
    text-decoration: none;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.ai-ac-nav a:hover {
    color: var(--ai-accent-cyan);
    background: rgba(6, 182, 212, 0.1);
    box-shadow: 0 0 8px var(--ai-glow-cyan);
}

.ai-ac-title {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--ai-text-muted);
    max-width: 42vw;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: 'JetBrains Mono', monospace;
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    body.ai-news-site .ai-sidebar {
        width: 220px;
        min-width: 220px;
    }

    .ai-ac-title {
        max-width: 100%;
        margin-left: 0;
        flex-basis: 100%;
    }
}

@media (max-width: 576px) {
    body.ai-news-site .ai-sidebar {
        display: none;
    }

    body.ai-news-site .ai-main {
        padding: 16px 20px;
    }
}

/* ========== 动画优化 ========== */
@media (prefers-reduced-motion: reduce) {
    .ai-route-progress.is-active::after,
    body.ai-news-site .ai-nav-brand::before {
        animation: none !important;
    }

    body.ai-news-site .ai-sidebar .day-list a:hover {
        transform: none;
    }
}

/* ========== 滚动条样式 ========== */
body.ai-news-site .ai-sidebar::-webkit-scrollbar {
    width: 8px;
}

body.ai-news-site .ai-sidebar::-webkit-scrollbar-track {
    background: var(--ai-bg-primary);
}

body.ai-news-site .ai-sidebar::-webkit-scrollbar-thumb {
    background: var(--ai-border-bright);
    border-radius: 4px;
}

body.ai-news-site .ai-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--ai-accent-blue);
    box-shadow: 0 0 8px var(--ai-glow-blue);
}