/* 3D霓虹主题全局样式 */
:root {
    --neon-pink: #ff2a6d;
    --neon-blue: #05d9e8;
    --neon-purple: #d300c5;
    --dark-bg: #0d0221;
    --darker-bg: #070119;
    --text-light: #ffffff;
    --text-glow: rgba(255, 255, 255, 0.8);
    --card-bg: rgba(13, 2, 33, 0.7);
    --transition-fast: 0.2s;
    --transition-medium: 0.5s;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Rajdhani', 'Segoe UI', sans-serif;
}

@font-face {
    font-family: 'Rajdhani';
    src: url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;700&display=swap');
}

body {
    background-color: var(--dark-bg);
    color: var(--text-light);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.7;
    background-image: 
        radial-gradient(circle at 10% 20%, var(--neon-purple) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, var(--neon-blue) 0%, transparent 20%);
}

/* 3D头部样式 */
header {
    background-color: var(--darker-bg);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--neon-pink);
    box-shadow: 0 0 15px var(--neon-pink);
    transform-style: preserve-3d;
    perspective: 1000px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: transparent;
    background: linear-gradient(90deg, var(--neon-pink), var(--neon-blue));
    -webkit-background-clip: text;
    background-clip: text;
    text-shadow: 0 0 10px rgba(255, 42, 109, 0.5);
    letter-spacing: 2px;
    transition: all var(--transition-medium);
}

.logo:hover {
    text-shadow: 0 0 20px var(--neon-pink);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 25px;
}

nav ul li {
    position: relative;
    transform-style: preserve-3d;
}

nav ul li a {
    color: var(--text-light);
    padding: 10px 15px;
    border-radius: 5px;
    font-weight: 600;
    transition: all var(--transition-fast);
    position: relative;
    display: inline-block;
}

nav ul li a::before {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--neon-pink);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-fast);
}

nav ul li a:hover {
    color: var(--neon-pink);
    transform: translateY(-3px);
}

nav ul li a:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

/* 3D卡片容器 */
.container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
    transform-style: preserve-3d;
}

/* 3D内容卡片 */
.main-content {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 40px;
    box-shadow: 0 0 20px rgba(5, 217, 232, 0.3);
    border: 1px solid var(--neon-blue);
    transform-style: preserve-3d;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.main-content::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--neon-pink), var(--neon-blue));
    z-index: -1;
    filter: blur(20px);
    opacity: 0.7;
}

.main-content:hover {
    transform: translateY(-10px) rotateX(5deg);
    box-shadow: 0 20px 40px rgba(5, 217, 232, 0.5);
}

.section-title {
    font-size: 26px;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--neon-pink);
    color: transparent;
    background: linear-gradient(90deg, var(--neon-pink), var(--neon-blue));
    -webkit-background-clip: text;
    background-clip: text;
    text-shadow: 0 0 10px rgba(255, 42, 109, 0.3);
}

/* 3D文章网格 */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    perspective: 1000px;
}

.article-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition-medium);
    transform-style: preserve-3d;
    position: relative;
    border: 1px solid var(--neon-blue);
    box-shadow: 0 0 15px rgba(5, 217, 232, 0.2);
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 42, 109, 0.1), rgba(5, 217, 232, 0.1));
    z-index: -1;
}

.article-card:hover {
    transform: translateY(-10px) rotateY(10deg);
    box-shadow: 0 10px 30px rgba(255, 42, 109, 0.4);
    border-color: var(--neon-pink);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid var(--neon-pink);
    transition: all var(--transition-medium);
}

.article-card:hover .card-image {
    transform: scale(1.05);
    filter: brightness(1.1) contrast(1.1);
}

.card-body {
    padding: 20px;
    transform-style: preserve-3d;
}

.card-title {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--text-light);
    transition: all var(--transition-fast);
    position: relative;
    display: inline-block;
}

.card-title::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--neon-pink);
    transition: width var(--transition-fast);
}

.card-title:hover {
    color: var(--neon-pink);
}

.card-title:hover::after {
    width: 100%;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--neon-blue);
    margin-top: 15px;
}

/* 3D分类标签 */
.category-tag {
    display: inline-block;
    padding: 5px 12px;
    background: rgba(255, 42, 109, 0.2);
    color: var(--neon-pink);
    border-radius: 20px;
    font-size: 12px;
    margin-bottom: 15px;
    border: 1px solid var(--neon-pink);
    transition: all var(--transition-fast);
}

.category-tag:hover {
    background: var(--neon-pink);
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 42, 109, 0.4);
}

/* 3D文章详情 */
.article-detail {
    max-width: 800px;
    margin: 0 auto;
    transform-style: preserve-3d;
}

.article-header {
    margin-bottom: 40px;
    text-align: center;
    position: relative;
}

.article-header::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--neon-pink), var(--neon-blue));
    border-radius: 3px;
}

.article-title {
    font-size: 36px;
    margin-bottom: 20px;
    color: transparent;
    background: linear-gradient(90deg, var(--neon-pink), var(--neon-blue));
    -webkit-background-clip: text;
    background-clip: text;
    text-shadow: 0 0 10px rgba(255, 42, 109, 0.3);
    line-height: 1.3;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 25px;
    color: var(--neon-blue);
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.article-image {
    width: 100%;
    max-height: 450px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 30px;
    border: 2px solid var(--neon-pink);
    box-shadow: 0 0 30px rgba(255, 42, 109, 0.3);
    transition: all var(--transition-medium);
}

.article-image:hover {
    transform: rotateY(10deg) scale(1.02);
    box-shadow: 0 0 50px rgba(255, 42, 109, 0.5);
}

.article-content {
    line-height: 1.8;
    font-size: 17px;
    transform-style: preserve-3d;
}

.article-content p {
    margin-bottom: 20px;
    position: relative;
}

.article-content p::before {
    content: '';
    position: absolute;
    left: -15px;
    top: 0;
    height: 100%;
    width: 3px;
    background: linear-gradient(to bottom, var(--neon-pink), var(--neon-blue));
    border-radius: 3px;
}

/* 3D分页导航 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 40px;
    perspective: 1000px;
}

.pagination a {
    padding: 12px 24px;
    border-radius: 30px;
    background: rgba(255, 42, 109, 0.2);
    color: var(--text-light);
    border: 1px solid var(--neon-pink);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.pagination a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--neon-pink), transparent);
    transition: all var(--transition-medium);
}

.pagination a:hover {
    background: var(--neon-pink);
    color: var(--text-light);
    transform: translateY(-5px) rotateX(10deg);
    box-shadow: 0 10px 20px rgba(255, 42, 109, 0.5);
}

.pagination a:hover::before {
    left: 100%;
}

/* 3D友情链接 */
.friend-links {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    margin: 40px 0;
    border: 1px solid var(--neon-blue);
    box-shadow: 0 0 20px rgba(5, 217, 232, 0.3);
    transform-style: preserve-3d;
    transition: all var(--transition-medium);
}

.friend-links:hover {
    transform: translateY(-10px) rotateX(5deg);
    box-shadow: 0 20px 40px rgba(5, 217, 232, 0.5);
}

.friend-links h3 {
    margin-bottom: 20px;
    color: var(--neon-blue);
    font-size: 22px;
    text-align: center;
}

.friend-links-container {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.friend-links-container a {
    padding: 10px 20px;
    background: rgba(5, 217, 232, 0.2);
    border-radius: 30px;
    font-size: 14px;
    color: var(--text-light);
    border: 1px solid var(--neon-blue);
    transition: all var(--transition-fast);
}

.friend-links-container a:hover {
    background: var(--neon-blue);
    color: var(--darker-bg);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(5, 217, 232, 0.4);
}

/* 3D页脚样式 */
footer {
    background-color: var(--darker-bg);
    padding: 40px 0;
    text-align: center;
    margin-top: 60px;
    border-top: 1px solid var(--neon-pink);
    box-shadow: 0 0 20px rgba(255, 42, 109, 0.2);
    transform-style: preserve-3d;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--neon-pink), var(--neon-blue));
}

.copyright {
    font-size: 14px;
    color: var(--neon-blue);
}

/* 3D动画效果 */
@keyframes float {
    0%, 100% {
        transform: translateY(0) rotateX(0);
    }
    50% {
        transform: translateY(-10px) rotateX(5deg);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 10px var(--neon-pink);
    }
    50% {
        box-shadow: 0 0 20px var(--neon-pink);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 20px;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    
    .article-grid {
        grid-template-columns: 1fr;
    }
    
    .article-title {
        font-size: 28px;
    }
    
    .article-meta {
        gap: 15px;
    }
    
    .main-content {
        padding: 20px;
    }
}