/* 未来科技感主题 - 香槟色调 */
:root {
    --champagne: #F7E7CE;
    --champagne-dark: #E5D5B9;
    --champagne-light: #FFF4E0;
    --tech-blue: #4A90E2;
    --tech-metal: #C0C0C0;
    --dark-bg: #1A1A1A;
    --text-dark: #333;
    --text-light: #FFF;
    --glow-effect: 0 0 15px rgba(250, 235, 215, 0.7);
    --transition-fast: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    background-color: var(--dark-bg);
    color: var(--text-light);
    line-height: 1.7;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(247, 231, 206, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(247, 231, 206, 0.05) 0%, transparent 20%);
}

/* 未来科技感字体 */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700&display=swap');

/* 特殊形状容器 */
.polygon-container {
    clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
    background: linear-gradient(135deg, var(--champagne), var(--champagne-dark));
    padding-bottom: 15%;
    margin-bottom: -10%;
    position: relative;
    z-index: 1;
}

/* 头部样式 - 悬浮导航 */
header {
    position: relative;
    z-index: 1000;
    padding: 25px 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--champagne), var(--tech-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 2px;
    text-transform: uppercase;
    position: relative;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, var(--champagne), transparent);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

nav ul li {
    position: relative;
}

nav ul li a {
    color: var(--champagne);
    font-weight: 500;
    letter-spacing: 1px;
    padding: 8px 15px;
    border-radius: 20px;
    transition: var(--transition-fast);
    text-transform: uppercase;
    font-size: 0.9rem;
}

nav ul li a:hover {
    color: var(--dark-bg);
    background: var(--champagne);
    box-shadow: var(--glow-effect);
}

/* 主要内容区域 - 非对称布局 */
.main-content {
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid rgba(199, 177, 152, 0.2);
    border-radius: 0 30px 30px 30px;
    padding: 40px;
    margin: 50px 0;
    position: relative;
    backdrop-filter: blur(10px);
}

.main-content::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    height: 5px;
    background: linear-gradient(to right, var(--champagne), var(--tech-blue));
    border-radius: 30px 30px 0 0;
}

.section-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
    padding-bottom: 15px;
    position: relative;
    color: var(--champagne);
    letter-spacing: 1px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, var(--tech-blue), transparent);
}

/* 网格布局 - 非对称 */
.article-matrix {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.article-matrix .article-card:nth-child(3n+1) {
    grid-column: span 2;
}

.article-matrix .article-card:nth-child(3n+2),
.article-matrix .article-card:nth-child(3n+3) {
    margin-top: 50px;
}

/* 文章卡片 - 悬浮效果 */
.article-card {
    background: linear-gradient(145deg, #2A2A2A, #1E1E1E);
    border-radius: 15px;
    overflow: hidden;
    transition: var(--transition-fast);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(199, 177, 152, 0.1);
    position: relative;
}

.article-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(74, 144, 226, 0.2);
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 60%, rgba(74, 144, 226, 0.1));
    pointer-events: none;
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid rgba(199, 177, 152, 0.2);
}

.card-body {
    padding: 25px;
}

.card-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--champagne);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--tech-metal);
    margin-top: 20px;
    border-top: 1px dashed rgba(199, 177, 152, 0.3);
    padding-top: 15px;
}

/* 分类标签 - 芯片样式 */
.category-chip {
    display: inline-block;
    padding: 5px 15px;
    background: linear-gradient(to right, var(--tech-blue), #2A5C8F);
    color: white;
    border-radius: 15px;
    font-size: 0.75rem;
    margin-bottom: 15px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 文章详情页 - 全息投影风格 */
.article-detail {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.article-detail::before {
    content: '';
    position: absolute;
    top: 0;
    left: -10px;
    width: 3px;
    height: 100%;
    background: linear-gradient(to bottom, var(--champagne), var(--tech-blue), transparent);
}

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

.article-title {
    font-size: 2.5rem;
    margin-bottom: 25px;
    line-height: 1.3;
    color: var(--champagne);
    text-shadow: 0 0 10px rgba(247, 231, 206, 0.3);
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    color: var(--tech-metal);
    margin-bottom: 30px;
    font-size: 0.9rem;
}

.article-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: 5px;
    margin-bottom: 40px;
    border: 1px solid rgba(199, 177, 152, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.article-content {
    line-height: 1.9;
    font-size: 1.1rem;
    position: relative;
    padding-left: 20px;
}

.article-content p {
    margin-bottom: 25px;
    position: relative;
}

.article-content p::before {
    content: '◈';
    position: absolute;
    left: -25px;
    color: var(--champagne);
    font-size: 0.8rem;
}

/* 分页导航 - 未来感按钮 */
.pagination {
    display: flex;
    justify-content: space-between;
    margin-top: 60px;
}

.pagination a {
    padding: 12px 25px;
    border-radius: 30px;
    background: linear-gradient(145deg, #2A2A2A, #1E1E1E);
    border: 1px solid rgba(199, 177, 152, 0.3);
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
    font-size: 0.9rem;
}

.pagination a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(247, 231, 206, 0.2), transparent);
    transition: all 0.6s ease;
}

.pagination a:hover {
    box-shadow: 0 5px 15px rgba(247, 231, 206, 0.3);
    border-color: var(--champagne);
}

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

/* 友情链接 - 网络节点样式 */
.friend-links {
    background: linear-gradient(145deg, #252525, #1A1A1A);
    border-radius: 15px;
    padding: 30px;
    margin: 50px 0;
    border: 1px solid rgba(199, 177, 152, 0.2);
    position: relative;
}

.friend-links::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 17px;
    background: linear-gradient(45deg, var(--champagne), var(--tech-blue), var(--champagne));
    z-index: -1;
    opacity: 0.1;
}

.friend-links h3 {
    margin-bottom: 25px;
    color: var(--champagne);
    font-size: 1.5rem;
    text-align: center;
}

.friend-links-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
}

.friend-links-container a {
    padding: 10px;
    border-radius: 8px;
    background: rgba(74, 144, 226, 0.1);
    text-align: center;
    transition: var(--transition-fast);
    border: 1px solid rgba(199, 177, 152, 0.1);
    font-size: 0.85rem;
}

.friend-links-container a:hover {
    background: rgba(247, 231, 206, 0.1);
    border-color: var(--champagne);
    transform: translateY(-3px);
}

/* 页脚样式 - 全息投影效果 */
footer {
    background: linear-gradient(to top, #111, #1A1A1A);
    padding: 50px 0 30px;
    text-align: center;
    position: relative;
    margin-top: 80px;
}

footer::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 0;
    width: 100%;
    height: 50px;
    background: linear-gradient(to bottom, transparent, rgba(247, 231, 206, 0.05));
}

.copyright {
    font-size: 0.9rem;
    color: var(--tech-metal);
    letter-spacing: 1px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .article-matrix {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .article-matrix .article-card:nth-child(3n+1) {
        grid-column: span 1;
    }
    
    .article-matrix .article-card:nth-child(3n+2),
    .article-matrix .article-card:nth-child(3n+3) {
        margin-top: 0;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 20px;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    
    .article-matrix {
        grid-template-columns: 1fr;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .main-content {
        padding: 30px 20px;
        border-radius: 0 20px 20px 20px;
    }
}

/* 未来科技感动画 */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

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