/* ============================================
   飞天敦煌 · AI科技版
   敦煌壁画艺术 + 未来科技感融合
   ============================================ */

:root{
    /* 敦煌色系 */
    --dh-gold: #C9A84C;
    --dh-gold-light: #E8D5A3;
    --dh-brown: #8B4513;
    --dh-red: #B85450;
    --dh-green: #2E8B7A;
    --dh-dark: #1A1A2E;
    --dh-sand: #C4B9A8;
    
    /* 科技感色系 */
    --tech-cyan: #00D4FF;
    --tech-blue: #0080FF;
    --tech-purple: #A855F7;
    --tech-pink: #EC4899;
    --tech-glow: rgba(0, 212, 255, 0.3);
    
    /* 融合色 */
    --gold-glow: rgba(201, 168, 76, 0.4);
    --dark-bg: #0F0F1A;
    --card-bg: rgba(26, 26, 46, 0.8);
    --glass: rgba(255, 255, 255, 0.05);
}

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

body{
    font-family: 'Inter', 'Noto Sans SC', -apple-system, sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: #E8E8E8;
    background: var(--dark-bg);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(201, 168, 76, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 212, 255, 0.05) 0%, transparent 40%),
        linear-gradient(180deg, #0F0F1A 0%, #1A1A2E 100%);
    min-height: 100vh;
}

/* 科技感网格背景 */
body::before{
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: -1;
}

.dh-container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}

/* 顶部信息栏 - 科技感 */
.dh-topbar{
    background: linear-gradient(90deg, rgba(0,0,0,0.8), rgba(26,26,46,0.9));
    padding: 10px 0;
    font-size: 12px;
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
    position: relative;
}
.dh-topbar::after{
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--tech-cyan), transparent);
}
.dh-topbar a{
    color: var(--tech-cyan);
    text-decoration: none;
    margin-left: 20px;
    transition: all 0.3s;
    position: relative;
    font-size: 13px;
}
.dh-topbar a:hover{
    color: var(--dh-gold);
    text-shadow: 0 0 10px var(--gold-glow);
}
.dh-topbar .user-name{
    color: var(--dh-gold);
    font-weight: 500;
}

/* 头部 - 毛玻璃效果 */
.dh-header{
    background: linear-gradient(135deg, rgba(26,26,46,0.95), rgba(15,15,26,0.98));
    padding: 30px 0;
    border-bottom: 1px solid rgba(201, 168, 76, 0.3);
    position: relative;
    backdrop-filter: blur(10px);
}
.dh-header::before{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--dh-gold), var(--tech-cyan), var(--dh-gold));
    animation: shimmer 3s infinite;
}
@keyframes shimmer{
    0%, 100%{opacity: 0.5}
    50%{opacity: 1}
}

.dh-logo{display:flex;align-items:center;gap:20px}
.dh-logo-icon{
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--dh-gold), var(--tech-cyan));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    position: relative;
    box-shadow: 
        0 0 30px var(--gold-glow),
        inset 0 0 20px rgba(255,255,255,0.1);
}
.dh-logo-icon::before{
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--dh-gold), var(--tech-cyan), var(--dh-gold));
    z-index: -1;
    opacity: 0.5;
    filter: blur(8px);
}
.dh-logo-text h1{
    font-size: 32px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--dh-gold), var(--tech-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 4px;
}
.dh-logo-text p{
    font-size: 13px;
    color: var(--tech-cyan);
    letter-spacing: 2px;
    margin-top: 5px;
    opacity: 0.8;
}

/* 搜索框 - 科技风格 */
.dh-search{
    margin-left: auto;
    position: relative;
}
.dh-search input{
    width: 320px;
    padding: 14px 50px 14px 24px;
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 30px;
    background: rgba(0, 0, 0, 0.3);
    color: #fff;
    font-size: 14px;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}
.dh-search input:focus{
    outline: none;
    border-color: var(--tech-cyan);
    box-shadow: 0 0 20px var(--tech-glow);
    background: rgba(0, 0, 0, 0.5);
}
.dh-search input::placeholder{color: rgba(255,255,255,0.4)}
.dh-search button{
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(135deg, var(--tech-cyan), var(--tech-blue));
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    color: #fff;
    font-size: 16px;
    transition: all 0.3s;
    box-shadow: 0 0 15px var(--tech-glow);
}
.dh-search button:hover{
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 0 25px var(--tech-glow);
}

/* 导航 - 霓虹效果 */
.dh-nav-wrap{
    background: linear-gradient(180deg, rgba(26,26,46,0.98), rgba(15,15,26,0.99));
    border-bottom: 1px solid rgba(0, 212, 255, 0.15);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
}
.dh-nav{display:flex;justify-content:center;gap:8px}
.dh-nav-item{position:relative}
.dh-nav-item > a{
    display: block;
    padding: 16px 28px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
    border-radius: 8px;
}
.dh-nav-item > a::before{
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--tech-cyan), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}
.dh-nav-item:hover > a{
    color: #fff;
    text-shadow: 0 0 10px var(--tech-glow);
}
.dh-nav-item:hover > a::before{
    opacity: 0.1;
}
.dh-nav-item > a::after{
    content: '';
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, var(--tech-cyan), var(--dh-gold));
    transition: transform 0.3s;
    box-shadow: 0 0 10px var(--tech-glow);
}
.dh-nav-item:hover > a::after{
    transform: translateX(-50%) scaleX(1);
}
.dh-nav-item.active > a{
    color: var(--dh-gold);
    text-shadow: 0 0 10px var(--gold-glow);
    background: linear-gradient(135deg, rgba(201, 168, 76, 0.15), transparent);
}
.dh-nav-item.active > a::after{
    transform: translateX(-50%) scaleX(1);
    background: var(--dh-gold);
    box-shadow: 0 0 15px var(--gold-glow);
}
.dh-dropdown{
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(26, 26, 46, 0.98);
    min-width: 200px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 12px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s;
    z-index: 101;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    overflow: hidden;
}
.dh-dropdown::before{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--tech-cyan), transparent);
}
.dh-nav-item:hover .dh-dropdown{
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.dh-dropdown a{
    display: block;
    padding: 12px 20px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 14px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    transition: all 0.3s;
    position: relative;
}
.dh-dropdown a::before{
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--tech-cyan), var(--dh-gold));
    opacity: 0;
    transition: opacity 0.3s;
}
.dh-dropdown a:hover{
    color: #fff;
    background: rgba(0, 212, 255, 0.1);
    padding-left: 25px;
}
.dh-dropdown a:hover::before{
    opacity: 1;
}

.dh-menu-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--tech-cyan)}

/* HERO 区域 - 科技感焦点 */
.dh-hero{
    padding: 60px 0;
    position: relative;
}
.dh-hero::before{
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}
.dh-hero-title{
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}
.dh-hero-title h2{
    font-size: 52px;
    font-weight: 800;
    color: var(--dh-gold);
    text-shadow: 
        0 0 20px var(--gold-glow),
        0 0 40px rgba(201, 168, 76, 0.3),
        0 0 60px rgba(201, 168, 76, 0.2);
    letter-spacing: 16px;
    position: relative;
    display: inline-block;
}
.dh-hero-title h2::after{
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--dh-gold), transparent);
    box-shadow: 0 0 20px var(--dh-gold);
}
.dh-hero-title p{
    color: var(--tech-cyan);
    font-size: 14px;
    letter-spacing: 8px;
    margin-top: 20px;
    opacity: 0.8;
}

/* 焦点图网格 - 科技卡片 */
.dh-focus-grid{
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.dh-focus-item{
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    height: 220px;
    background: var(--card-bg);
    border: 1px solid rgba(201, 168, 76, 0.2);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.dh-focus-item:hover{
    transform: translateY(-8px);
    border-color: var(--dh-gold);
    box-shadow: 
        0 20px 40px rgba(0,0,0,0.4),
        0 0 30px var(--gold-glow);
}
.dh-focus-item img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}
.dh-focus-item:hover img{
    transform: scale(1.1);
}
.dh-focus-item .mask{
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 25px 20px 20px;
    background: linear-gradient(transparent, rgba(15,15,26,0.95));
}
.dh-focus-item .mask h3{
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.dh-focus-item .mask span{
    font-size: 11px;
    color: var(--tech-cyan);
    opacity: 0.8;
}
.dh-focus-item:first-child{
    grid-column: span 2;
    grid-row: span 2;
    height: 100%;
}
.dh-focus-item:first-child .mask h3{
    font-size: 20px;
}

/* 内容区标题 */
.dh-section{margin-bottom: 60px}
.dh-sec-hd{
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(0, 212, 255, 0.15);
    position: relative;
}
.dh-sec-hd::after{
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--tech-cyan), var(--dh-gold));
    box-shadow: 0 0 10px var(--tech-glow);
}
.dh-sec-hd h2{
    font-size: 22px;
    font-weight: 700;
    color: var(--dh-gold);
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.dh-sec-hd h2::before{
    content: '';
    width: 8px;
    height: 24px;
    background: linear-gradient(180deg, var(--dh-gold), var(--dh-gold-light));
    border-radius: 4px;
    box-shadow: 0 0 15px var(--gold-glow);
}
.dh-sec-hd .more{
    margin-left: auto;
    color: var(--dh-gold);
    text-decoration: none;
    font-size: 13px;
    padding: 8px 20px;
    border: 1px solid var(--dh-gold);
    border-radius: 20px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}
.dh-sec-hd .more::before{
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--dh-gold), var(--dh-gold-light));
    opacity: 0;
    transition: opacity 0.3s;
}
.dh-sec-hd .more:hover{
    color: #1A1A2E;
    border-color: var(--dh-gold);
    box-shadow: 0 0 20px var(--gold-glow);
}
.dh-sec-hd .more:hover::before{
    opacity: 1;
}
.dh-sec-hd .more:hover span{
    position: relative;
    z-index: 1;
    font-weight: 600;
}
.dh-sec-hd .more span{position: relative; z-index: 1}

/* 主布局 */
.dh-main-layout{
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 40px;
}

/* 卡片网格 */
.dh-card-grid{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.dh-card{
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(201, 168, 76, 0.1);
    transition: all 0.4s;
    display: flex;
    flex-direction: column;
    position: relative;
}
.dh-card::before{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--dh-gold), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}
.dh-card:hover{
    transform: translateY(-6px);
    border-color: rgba(201, 168, 76, 0.3);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3), 0 0 20px var(--gold-glow);
}
.dh-card:hover::before{
    opacity: 1;
}
.dh-card-img{
    height: 180px;
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, rgba(0,0,0,0.3), rgba(0,0,0,0.1));
}
.dh-card-img img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}
.dh-card:hover .dh-card-img img{
    transform: scale(1.08);
}
.dh-card-body{
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.dh-card-title{
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    line-height: 1.5;
    margin-bottom: 12px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
}
.dh-card-title a{
    color: inherit;
    text-decoration: none;
    transition: color 0.3s;
}
.dh-card-title a:hover{
    color: var(--tech-cyan);
}
.dh-card-desc{
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    line-height: 1.7;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    margin-bottom: 15px;
    flex: 1;
}
.dh-card-meta{
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: rgba(255,255,255,0.4);
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 12px;
}
.dh-card-tag{
    background: rgba(0, 212, 255, 0.1);
    color: var(--tech-cyan);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

/* 头条卡片 */
.dh-feat-card{
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    height: auto;
}
.dh-feat-card .dh-card-img{
    height: 100%;
    min-height: 280px;
}
.dh-feat-card .dh-card-body{
    justify-content: center;
}
.dh-feat-card .dh-card-title{
    font-size: 22px;
    margin-bottom: 15px;
}
.dh-feat-card .dh-card-desc{
    -webkit-line-clamp: 4;
    line-clamp: 4;
    font-size: 14px;
}

/* 图片画廊 */
.dh-gallery-grid{
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.dh-gallery-item{
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 1/1;
    background: var(--card-bg);
    border: 1px solid rgba(201, 168, 76, 0.1);
    transition: all 0.4s;
}
.dh-gallery-item:hover{
    transform: scale(1.03);
    border-color: var(--dh-gold);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3), 0 0 20px var(--gold-glow);
}
.dh-gallery-item img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}
.dh-gallery-item:hover img{
    transform: scale(1.1);
}
.dh-gallery-item .overlay{
    position: absolute;
    inset: 0;
    background: linear-gradient(transparent 30%, rgba(15,15,26,0.95));
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.3s;
}
.dh-gallery-item:hover .overlay{
    opacity: 1;
}
.dh-gallery-item .overlay span{
    color: #fff;
    font-size: 14px;
    font-weight: 500;
}
.dh-gallery-item .overlay small{
    color: var(--tech-cyan);
    font-size: 12px;
    margin-top: 6px;
    opacity: 0.8;
}

/* 侧边栏 */
.dh-wid{
    background: var(--card-bg);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid rgba(201, 168, 76, 0.1);
    position: relative;
    overflow: hidden;
}
.dh-wid::before{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--dh-gold), var(--dh-gold-light));
    opacity: 0.8;
    box-shadow: 0 0 10px var(--gold-glow);
}
.dh-wid-hd{
    font-size: 16px;
    font-weight: 700;
    color: var(--dh-gold);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(201, 168, 76, 0.2);
    display: flex;
    align-items: center;
    gap: 8px;
}
.dh-wid-hd::before{
    content: '';
    width: 4px;
    height: 16px;
    background: linear-gradient(180deg, var(--dh-gold), var(--dh-gold-light));
    border-radius: 2px;
    box-shadow: 0 0 8px var(--gold-glow);
}

.dh-hot-list{list-style: none}
.dh-hot-list li{
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.dh-hot-list li:last-child{border-bottom: none}
.dh-hot-num{
    width: 26px;
    height: 26px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 12px;
    flex-shrink: 0;
    background: rgba(255,255,255,0.05);
    color: rgba(255,255,255,0.5);
}
.dh-hot-num.top1{
    background: linear-gradient(135deg, var(--dh-gold), #D4A84C);
    color: #fff;
    box-shadow: 0 0 10px var(--gold-glow);
}
.dh-hot-num.top2{
    background: linear-gradient(135deg, var(--tech-cyan), var(--tech-blue));
    color: #fff;
    box-shadow: 0 0 10px var(--tech-glow);
}
.dh-hot-num.top3{
    background: linear-gradient(135deg, var(--dh-red), #C85A54);
    color: #fff;
}
.dh-hot-list a{
    flex: 1;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    font-size: 13px;
    line-height: 1.5;
    transition: color 0.3s;
}
.dh-hot-list a:hover{
    color: var(--tech-cyan);
}
.dh-hot-list .count{
    font-size: 11px;
    color: rgba(255,255,255,0.3);
    white-space: nowrap;
}

.dh-cat-list{list-style: none}
.dh-cat-list li{margin-bottom: 8px}
.dh-cat-list a{
    display: block;
    padding: 12px 16px;
    background: rgba(0, 212, 255, 0.05);
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    border-radius: 8px;
    font-size: 13px;
    transition: all 0.3s;
    border: 1px solid transparent;
}
.dh-cat-list a:hover{
    background: rgba(0, 212, 255, 0.1);
    color: var(--tech-cyan);
    border-color: rgba(0, 212, 255, 0.2);
    padding-left: 20px;
}

/* 列表页 */
.dh-list-item{
    display: flex;
    gap: 24px;
    padding: 24px;
    background: var(--card-bg);
    border-radius: 16px;
    margin-bottom: 20px;
    border: 1px solid rgba(0, 212, 255, 0.08);
    transition: all 0.3s;
}
.dh-list-item:hover{
    transform: translateX(5px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}
.dh-list-img{
    width: 240px;
    height: 160px;
    border-radius: 12px;
    overflow: hidden;
    flex-shrink: 0;
    background: rgba(0,0,0,0.2);
}
.dh-list-img img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.dh-list-item:hover .dh-list-img img{
    transform: scale(1.05);
}
.dh-list-body{
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.dh-list-title{
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}
.dh-list-title a{
    color: #fff;
    text-decoration: none;
    transition: color 0.3s;
}
.dh-list-title a:hover{
    color: var(--tech-cyan);
}
.dh-list-desc{
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    line-height: 1.8;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
}
.dh-list-meta{
    display: flex;
    gap: 24px;
    font-size: 12px;
    color: rgba(255,255,255,0.4);
    margin-top: 12px;
}

/* 分页 */
.dh-page{
    text-align: center;
    margin: 40px 0;
}
.dh-page a, .dh-page span{
    display: inline-block;
    padding: 10px 18px;
    margin: 0 5px;
    background: var(--card-bg);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 8px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: all 0.3s;
}
.dh-page a:hover{
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--tech-cyan);
    color: var(--tech-cyan);
    box-shadow: 0 0 15px var(--tech-glow);
}
.dh-page span.current{
    background: linear-gradient(135deg, var(--tech-cyan), var(--tech-blue));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 0 15px var(--tech-glow);
}

/* 文章页 */
.dh-article{
    background: var(--card-bg);
    border-radius: 16px;
    padding: 40px;
    border: 1px solid rgba(0, 212, 255, 0.08);
}
.dh-article-hd{
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.dh-article-hd h1{
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    line-height: 1.4;
}
.dh-article-meta{
    display: flex;
    justify-content: center;
    gap: 30px;
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}
.dh-article-bd{
    font-size: 16px;
    line-height: 2;
    color: rgba(255,255,255,0.85);
}
.dh-article-bd p{
    margin-bottom: 20px;
}
.dh-article-bd img{
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 20px 0;
    border: 1px solid rgba(0, 212, 255, 0.1);
}

/* 页脚 */
.dh-footer{
    background: linear-gradient(180deg, rgba(15,15,26,0.98), #0a0a12);
    padding: 60px 0 30px;
    margin-top: 80px;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    position: relative;
}
.dh-footer::before{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--tech-cyan), var(--dh-gold), transparent);
}
.dh-footer-grid{
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}
.dh-footer-logo h3{
    font-size: 24px;
    background: linear-gradient(135deg, var(--dh-gold), var(--tech-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
}
.dh-footer-logo p{
    font-size: 13px;
    line-height: 1.8;
    color: rgba(255,255,255,0.5);
}
.dh-footer-hd{
    font-size: 14px;
    color: var(--tech-cyan);
    margin-bottom: 20px;
    font-weight: 600;
    letter-spacing: 1px;
}
.dh-footer-links{list-style: none}
.dh-footer-links li{margin-bottom: 10px}
.dh-footer-links a{
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    font-size: 13px;
    transition: all 0.3s;
}
.dh-footer-links a:hover{
    color: var(--dh-gold);
    text-shadow: 0 0 10px var(--gold-glow);
}
.dh-footer-bar{
    text-align: center;
    padding-top: 30px;
    margin-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.05);
    font-size: 12px;
    color: rgba(255,255,255,0.3);
}

/* 返回顶部 */
#dhTop{
    position: fixed;
    right: 30px;
    bottom: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--tech-cyan), var(--tech-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    box-shadow: 0 0 20px var(--tech-glow);
    z-index: 99;
}
#dhTop.show{
    opacity: 1;
    visibility: visible;
}
#dhTop:hover{
    transform: translateY(-5px);
    box-shadow: 0 0 30px var(--tech-glow);
}

/* 搜索页 */
.dh-search-hd{
    text-align: center;
    padding: 50px;
    background: var(--card-bg);
    border-radius: 16px;
    margin-bottom: 30px;
    border: 1px solid rgba(0, 212, 255, 0.1);
}
.dh-search-hd h2{
    font-size: 24px;
    color: #fff;
    margin-bottom: 15px;
}
.dh-search-hd .keyword{
    color: var(--tech-cyan);
    border-bottom: 2px solid var(--tech-cyan);
}

/* 404 */
.dh-404{
    text-align: center;
    padding: 100px 20px;
}
.dh-404-icon{
    font-size: 100px;
    background: linear-gradient(135deg, var(--dh-gold), var(--tech-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 30px;
    opacity: 0.8;
}
.dh-404 h2{
    font-size: 36px;
    color: #fff;
    margin-bottom: 15px;
}
.dh-404 p{
    color: rgba(255,255,255,0.5);
    margin-bottom: 30px;
}
.dh-404 a{
    display: inline-block;
    padding: 14px 40px;
    background: linear-gradient(135deg, var(--tech-cyan), var(--tech-blue));
    color: #fff;
    text-decoration: none;
    border-radius: 30px;
    transition: all 0.3s;
    box-shadow: 0 0 20px var(--tech-glow);
}
.dh-404 a:hover{
    transform: translateY(-3px);
    box-shadow: 0 0 30px var(--tech-glow);
}

/* 响应式 */
@media(max-width:1024px){
    .dh-main-layout{grid-template-columns: 1fr}
    .dh-sidebar{order:2}
    .dh-focus-grid{grid-template-columns: repeat(2, 1fr)}
    .dh-focus-item:first-child{grid-column: span 2; grid-row: span 1; height: 220px}
    .dh-card-grid{grid-template-columns: repeat(2, 1fr)}
    .dh-feat-card{grid-column: span 2}
    .dh-gallery-grid{grid-template-columns: repeat(3, 1fr)}
    .dh-footer-grid{grid-template-columns: repeat(2, 1fr)}
}

@media(max-width:768px){
    .dh-menu-toggle{display:block}
    .dh-nav{
        position: fixed;
        top: 0;
        left: -280px;
        width: 280px;
        height: 100vh;
        background: rgba(15,15,26,0.98);
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 60px;
        transition: left 0.3s;
        z-index: 100;
    }
    .dh-nav.open{left:0}
    .dh-nav-item > a{padding: 15px 20px; border-bottom: 1px solid rgba(255,255,255,0.05)}
    .dh-dropdown{
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: rgba(0,0,0,0.2);
    }
    .dh-dropdown a{padding-left: 40px; color: rgba(255,255,255,0.6)}
    .dh-search input{width: 200px}
    .dh-hero-title h2{font-size: 32px; letter-spacing: 4px}
    .dh-focus-grid{grid-template-columns: 1fr}
    .dh-focus-item:first-child{grid-column: span 1; height: 220px}
    .dh-card-grid{grid-template-columns: 1fr}
    .dh-feat-card{grid-column: span 1; grid-template-columns: 1fr}
    .dh-feat-card .dh-card-img{height: 200px; min-height: auto}
    .dh-gallery-grid{grid-template-columns: repeat(2, 1fr)}
    .dh-list-item{flex-direction: column}
    .dh-list-img{width: 100%; height: 200px}
    .dh-footer-grid{grid-template-columns: repeat(2, 1fr); gap: 20px}
    .dh-footer{padding: 30px 0 20px; margin-top: 40px}
    .dh-footer-logo h3{font-size: 18px}
    .dh-footer-hd{margin-bottom: 12px; font-size: 13px}
    .dh-footer-links li{margin-bottom: 6px}
    .dh-footer-links a{font-size: 12px}
    .dh-footer-bar{margin-top: 20px; padding-top: 15px}
    .dh-article{padding: 24px}
}

@media(max-width:480px){
    .dh-logo-text h1{font-size: 22px; letter-spacing: 2px}
    .dh-gallery-grid{grid-template-columns: 1fr}
}