/* 3D霓虹主题全局样式 */
:root {
    --neon-pink: #ff2a6d;
    --neon-blue: #05d9e8;
    --neon-purple: #d300c5;
    --dark-bg: #0d0221;
    --darker-bg: #070113;
    --text-color: #ffffff;
    --card-bg: rgba(13, 2, 33, 0.7);
    --glow: 0 0 10px var(--neon-pink), 
            0 0 20px var(--neon-blue),
            0 0 30px var(--neon-purple);
}

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

@font-face {
    font-family: 'Rajdhani';
    src: url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;700&display=swap');
}

body {
    background-color: var(--dark-bg);
    color: var(--text-color);
    line-height: 1.7;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at 10% 20%, var(--neon-purple), transparent 25%),
        radial-gradient(circle at 90% 80%, var(--neon-blue), transparent 25%);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: var(--neon-blue);
    transition: all 0.3s ease;
    text-shadow: 0 0 5px var(--neon-blue);
}

a:hover {
    color: var(--neon-pink);
    text-shadow: var(--glow);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 3D头部样式 */
header {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    padding: 25px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--neon-pink);
    box-shadow: 0 0 15px rgba(255, 42, 109, 0.5);
    transform-style: preserve-3d;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    perspective: 1000px;
}

.logo {
    font-size: 32px;
    font-weight: 700;
    background: linear-gradient(to right, var(--neon-pink), var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 2px;
    text-shadow: var(--glow);
    transform: translateZ(20px);
    animation: glow 2s infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 5px var(--neon-pink);
    }
    to {
        text-shadow: var(--glow);
    }
}

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

nav ul li a {
    padding: 8px 20px;
    border-radius: 30px;
    font-weight: 600;
    border: 1px solid var(--neon-blue);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

nav ul li a:hover {
    background: var(--neon-pink);
    color: white;
    border-color: var(--neon-pink);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 5px 15px rgba(255, 42, 109, 0.6);
}

/* 3D卡片内容区域 */
.main-content {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 40px;
    margin: 40px 0;
    backdrop-filter: blur(5px);
    border: 1px solid var(--neon-blue);
    box-shadow: 0 0 20px rgba(5, 217, 232, 0.3);
    transform-style: preserve-3d;
    transition: all 0.5s ease;
}

.main-content:hover {
    box-shadow: 0 0 30px rgba(255, 42, 109, 0.5);
    transform: translateY(-5px);
}

.section-title {
    font-size: 28px;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--neon-purple);
    position: relative;
    color: transparent;
    background: linear-gradient(to right, var(--neon-pink), var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100px;
    height: 3px;
    background: linear-gradient(to right, var(--neon-pink), transparent);
}

/* 3D卡片网格布局 */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    perspective: 1000px;
}

.article-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid var(--neon-blue);
    box-shadow: 0 5px 15px rgba(5, 217, 232, 0.2);
    transform-style: preserve-3d;
    position: relative;
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, 
        rgba(255, 42, 109, 0.1), 
        rgba(5, 217, 232, 0.1));
    z-index: -1;
}

.article-card:hover {
    transform: translateY(-10px) rotateX(5deg) scale(1.03);
    box-shadow: 0 15px 30px rgba(255, 42, 109, 0.4);
    border-color: var(--neon-pink);
}

.card-image-container {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.article-card:hover .card-image {
    transform: scale(1.1);
}

.card-body {
    padding: 25px;
    position: relative;
}

.card-title {
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: 600;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: white;
    text-shadow: 0 0 5px rgba(255, 255, 255, 0.3);
}

.card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--neon-blue);
    margin-top: 20px;
}

/* 3D分类标签 */
.category-tag {
    display: inline-block;
    padding: 5px 15px;
    background: linear-gradient(to right, var(--neon-pink), var(--neon-purple));
    color: white;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    margin-bottom: 15px;
    box-shadow: 0 0 10px rgba(255, 42, 109, 0.5);
    transform: translateZ(10px);
}

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

.article-header {
    margin-bottom: 50px;
    text-align: center;
    position: relative;
}

.article-title {
    font-size: 36px;
    margin-bottom: 25px;
    line-height: 1.3;
    background: linear-gradient(to right, var(--neon-pink), var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 10px rgba(5, 217, 232, 0.5);
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 30px;
    color: var(--neon-blue);
    margin-bottom: 30px;
    flex-wrap: wrap;
    text-shadow: 0 0 5px var(--neon-blue);
}

.article-image-container {
    height: 400px;
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 30px;
    border: 2px solid var(--neon-blue);
    box-shadow: 0 0 20px rgba(5, 217, 232, 0.3);
    transform: perspective(1000px) rotateX(2deg);
}

.article-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.article-image-container:hover .article-image {
    transform: scale(1.05);
}

.article-content {
    line-height: 1.8;
    font-size: 18px;
    position: relative;
    z-index: 1;
}

.article-content p {
    margin-bottom: 25px;
    text-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
}

/* 3D分页导航 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 50px;
    perspective: 1000px;
}

.pagination a {
    padding: 12px 25px;
    border-radius: 30px;
    background: rgba(5, 217, 232, 0.1);
    border: 1px solid var(--neon-blue);
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-style: preserve-3d;
    position: relative;
    overflow: hidden;
}

.pagination a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 42, 109, 0.4), 
        transparent);
    transition: all 0.6s ease;
}

.pagination a:hover {
    background: var(--neon-pink);
    color: white;
    border-color: var(--neon-pink);
    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: 15px;
    padding: 30px;
    margin: 40px 0;
    backdrop-filter: blur(5px);
    border: 1px solid var(--neon-purple);
    box-shadow: 0 0 20px rgba(211, 0, 197, 0.3);
    transform-style: preserve-3d;
}

.friend-links h3 {
    margin-bottom: 25px;
    font-size: 24px;
    background: linear-gradient(to right, var(--neon-blue), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.friend-links-container {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    perspective: 1000px;
}

.friend-links-container a {
    padding: 10px 20px;
    background: rgba(5, 217, 232, 0.1);
    border-radius: 30px;
    font-size: 14px;
    border: 1px solid var(--neon-blue);
    transition: all 0.4s ease;
    transform-style: preserve-3d;
}

.friend-links-container a:hover {
    background: var(--neon-pink);
    color: white;
    border-color: var(--neon-pink);
    transform: translateY(-3px) rotateY(10deg);
    box-shadow: 0 5px 15px rgba(255, 42, 109, 0.5);
}

/* 3D页脚样式 */
footer {
    background: var(--darker-bg);
    padding: 40px 0;
    text-align: center;
    margin-top: 60px;
    border-top: 1px solid var(--neon-purple);
    box-shadow: 0 0 20px rgba(211, 0, 197, 0.2);
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(to right, 
        var(--neon-pink), 
        var(--neon-blue), 
        var(--neon-purple));
    animation: rainbow 5s linear infinite;
}

@keyframes rainbow {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

.copyright {
    font-size: 14px;
    color: var(--neon-blue);
    text-shadow: 0 0 5px var(--neon-blue);
}

/* 3D背景元素 */
.background-element {
    position: fixed;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.15;
    z-index: -1;
}

.bg-element-1 {
    width: 300px;
    height: 300px;
    background: var(--neon-pink);
    top: -100px;
    left: -100px;
    animation: float 15s infinite alternate ease-in-out;
}

.bg-element-2 {
    width: 400px;
    height: 400px;
    background: var(--neon-blue);
    bottom: -150px;
    right: -100px;
    animation: float 20s infinite alternate-reverse ease-in-out;
}

@keyframes float {
    0% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(50px, 50px) rotate(180deg); }
    100% { transform: translate(0, 0) rotate(360deg); }
}

/* 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;
    }
    
    .article-image-container {
        height: 250px;
    }
}