/* 3D动态交互风格全局样式 */
:root {
    --neon-blue: #0ff0fc;
    --neon-pink: #ff00ff;
    --neon-purple: #9d00ff;
    --dark-bg: #0a0a1a;
    --darker-bg: #050510;
    --text-color: #e0e0ff;
    --text-highlight: #ffffff;
    --card-bg: rgba(15, 10, 30, 0.7);
    --transition-speed: 0.4s;
}

* {
    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;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(157, 0, 255, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(255, 0, 255, 0.1) 0%, transparent 20%);
}

/* 3D头部样式 */
header {
    background-color: var(--darker-bg);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 0 20px rgba(0, 240, 252, 0.2);
    border-bottom: 1px solid var(--neon-blue);
}

.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;
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 10px rgba(0, 240, 252, 0.5);
    letter-spacing: 2px;
    transition: all var(--transition-speed);
}

.logo:hover {
    text-shadow: 0 0 20px rgba(0, 240, 252, 0.8);
}

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

nav ul li a {
    padding: 8px 15px;
    border-radius: 4px;
    font-weight: 500;
    position: relative;
    color: var(--text-color);
    transition: all var(--transition-speed);
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--neon-pink);
    transition: width var(--transition-speed);
}

nav ul li a:hover {
    color: var(--neon-blue);
}

nav ul li a:hover::after {
    width: 100%;
}

/* 3D容器效果 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    perspective: 1000px;
}

.main-content {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 30px;
    margin: 30px 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 240, 252, 0.2);
    transform-style: preserve-3d;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.main-content:hover {
    transform: translateY(-5px) rotateX(1deg);
    box-shadow: 0 15px 40px rgba(0, 240, 252, 0.3);
}

.section-title {
    font-size: 26px;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(0, 240, 252, 0.3);
    color: var(--neon-blue);
    text-shadow: 0 0 10px rgba(0, 240, 252, 0.3);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, var(--neon-blue), transparent);
}

/* 3D卡片网格 */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    perspective: 1000px;
}

.article-card {
    background: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    transition: all var(--transition-speed);
    transform-style: preserve-3d;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 240, 252, 0.1);
    position: relative;
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-pink));
    opacity: 0;
    transition: opacity var(--transition-speed);
}

.article-card:hover {
    transform: translateY(-10px) rotateY(5deg) scale(1.02);
    box-shadow: 0 15px 30px rgba(0, 240, 252, 0.2);
}

.article-card:hover::before {
    opacity: 1;
}

.card-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-bottom: 1px solid rgba(0, 240, 252, 0.2);
    transition: transform var(--transition-speed);
}

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

.card-body {
    padding: 20px;
    position: relative;
    z-index: 1;
}

.card-title {
    font-size: 18px;
    margin-bottom: 12px;
    font-weight: 600;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--text-highlight);
    transition: color var(--transition-speed);
}

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

.card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--neon-pink);
    margin-top: 15px;
}

/* 霓虹标签 */
.neon-tag {
    display: inline-block;
    padding: 3px 10px;
    background-color: rgba(157, 0, 255, 0.2);
    color: var(--neon-purple);
    border-radius: 15px;
    font-size: 12px;
    margin-bottom: 10px;
    border: 1px solid var(--neon-purple);
    text-shadow: 0 0 5px rgba(157, 0, 255, 0.5);
    transition: all var(--transition-speed);
}

.neon-tag:hover {
    background-color: rgba(157, 0, 255, 0.4);
    box-shadow: 0 0 10px rgba(157, 0, 255, 0.5);
}

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

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

.article-title {
    font-size: 32px;
    margin-bottom: 20px;
    line-height: 1.3;
    color: var(--text-highlight);
    text-shadow: 0 0 10px rgba(0, 240, 252, 0.3);
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.article-image {
    width: 100%;
    max-height: 450px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: 0 0 30px rgba(0, 240, 252, 0.2);
    border: 1px solid rgba(0, 240, 252, 0.3);
    transition: transform var(--transition-speed);
}

.article-image:hover {
    transform: rotateY(5deg) scale(1.01);
}

.article-content {
    line-height: 1.8;
    font-size: 17px;
}

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

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: 0 0 20px rgba(0, 240, 252, 0.2);
}

/* 霓虹分页导航 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 40px;
}

.pagination a {
    padding: 10px 20px;
    border-radius: 30px;
    background-color: rgba(0, 240, 252, 0.1);
    border: 1px solid var(--neon-blue);
    transition: all var(--transition-speed);
    color: var(--neon-blue);
    position: relative;
    overflow: hidden;
}

.pagination a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 240, 252, 0.4), transparent);
    transition: all 0.6s;
}

.pagination a:hover {
    background-color: rgba(0, 240, 252, 0.2);
    color: white;
    box-shadow: 0 0 15px rgba(0, 240, 252, 0.4);
}

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

/* 霓虹友情链接 */
.friend-links {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 25px;
    margin: 30px 0;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 240, 252, 0.2);
}

.friend-links h3 {
    margin-bottom: 20px;
    color: var(--neon-blue);
    font-size: 20px;
    text-shadow: 0 0 10px rgba(0, 240, 252, 0.3);
}

.friend-links-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.friend-links-container a {
    padding: 8px 15px;
    background-color: rgba(0, 240, 252, 0.1);
    border-radius: 20px;
    font-size: 14px;
    border: 1px solid var(--neon-blue);
    transition: all var(--transition-speed);
}

.friend-links-container a:hover {
    background-color: rgba(0, 240, 252, 0.3);
    color: white;
    box-shadow: 0 0 10px rgba(0, 240, 252, 0.4);
}

/* 霓虹页脚 */
footer {
    background-color: var(--darker-bg);
    padding: 30px 0;
    text-align: center;
    margin-top: 50px;
    border-top: 1px solid rgba(0, 240, 252, 0.2);
    box-shadow: 0 0 20px rgba(0, 240, 252, 0.1);
}

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

/* 3D悬浮按钮 */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: rgba(0, 240, 252, 0.2);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    border: 1px solid var(--neon-blue);
    box-shadow: 0 0 15px rgba(0, 240, 252, 0.3);
    transition: all var(--transition-speed);
    transform-style: preserve-3d;
    z-index: 999;
}

.scroll-top:hover {
    background-color: rgba(0, 240, 252, 0.4);
    transform: translateY(-5px) rotateY(15deg);
    box-shadow: 0 0 25px rgba(0, 240, 252, 0.5);
}

.scroll-top::before {
    content: '↑';
    color: var(--neon-blue);
    font-size: 20px;
    font-weight: bold;
}

/* 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: 26px;
    }
    
    .article-meta {
        gap: 15px;
    }
    
    .main-content {
        padding: 20px;
    }
}

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

.float-animation {
    animation: float 6s ease-in-out infinite;
}

/* 霓虹光晕效果 */
.neon-glow {
    position: relative;
}

.neon-glow::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    box-shadow: 0 0 20px 5px var(--neon-blue);
    opacity: 0;
    transition: opacity var(--transition-speed);
}

.neon-glow:hover::after {
    opacity: 0.5;
}