/* 渐进式交互主题 - 霓虹电光粉主色调 */
:root {
    --neon-pink: #ff2a6d;
    --neon-blue: #05d9e8;
    --dark-bg: #0d0221;
    --darker-bg: #05010f;
    --text-light: #ffffff;
    --text-dim: #a5a5a5;
    --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-light);
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 渐进式加载动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.progressive-load {
    opacity: 0;
    animation: fadeIn var(--transition-speed) forwards;
}

/* 头部样式 - 霓虹光效 */
header {
    background: linear-gradient(to bottom, var(--darker-bg), rgba(13,2,33,0.9));
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--neon-pink);
    box-shadow: 0 0 15px rgba(255,42,109,0.3);
}

.header-container {
    width: 95%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--neon-pink), var(--neon-blue));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 0 10px rgba(255,42,109,0.5);
    letter-spacing: 1px;
    transition: all var(--transition-speed);
}

.logo:hover {
    text-shadow: 0 0 20px rgba(255,42,109,0.8);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--neon-pink);
    font-size: 1.5rem;
    cursor: pointer;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-light);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
    transition: all var(--transition-speed);
}

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

.nav-link:hover {
    color: var(--neon-pink);
}

.nav-link:hover::after {
    width: 100%;
}

/* 主内容区 - 卡片悬浮效果 */
.main-container {
    width: 95%;
    max-width: 1200px;
    margin: 2rem auto;
    flex: 1;
}

.hero-section {
    background: radial-gradient(circle at center, rgba(255,42,109,0.1) 0%, rgba(5,217,232,0.05) 100%);
    border-radius: 15px;
    padding: 3rem;
    margin-bottom: 3rem;
    text-align: center;
    border: 1px solid rgba(255,42,109,0.3);
    box-shadow: 0 0 30px rgba(255,42,109,0.1);
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, var(--neon-pink), var(--neon-blue));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.card {
    background: rgba(13,2,33,0.7);
    border-radius: 10px;
    overflow: hidden;
    transition: all var(--transition-speed);
    border: 1px solid rgba(255,42,109,0.2);
    position: relative;
}

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

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(255,42,109,0.3);
    border-color: var(--neon-pink);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid rgba(255,42,109,0.2);
}

.card-content {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-light);
    transition: color var(--transition-speed);
}

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

.card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-top: 1rem;
}

/* 文章详情页 - 渐进式阅读体验 */
.article-container {
    max-width: 800px;
    margin: 0 auto;
}

.article-header {
    text-align: center;
    margin-bottom: 3rem;
}

.article-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.3;
    color: var(--text-light);
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-dim);
}

.article-image {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: 0 0 20px rgba(255,42,109,0.2);
}

.article-content {
    line-height: 1.8;
    font-size: 1.1rem;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1.5rem 0;
    box-shadow: 0 0 15px rgba(5,217,232,0.2);
}

/* 分页导航 - 霓虹按钮效果 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 3rem 0;
}

.pagination a {
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    background: rgba(255,42,109,0.1);
    border: 1px solid var(--neon-pink);
    color: var(--neon-pink);
    transition: all var(--transition-speed);
    font-weight: 500;
}

.pagination a:hover {
    background: var(--neon-pink);
    color: var(--dark-bg);
    box-shadow: 0 0 15px rgba(255,42,109,0.5);
}

/* 友情链接 - 霓虹标签效果 */
.friend-links {
    margin: 3rem 0;
}

.friend-links h3 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.friend-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.friend-tags a {
    padding: 0.5rem 1.2rem;
    background: rgba(5,217,232,0.1);
    border: 1px solid var(--neon-blue);
    color: var(--neon-blue);
    border-radius: 30px;
    font-size: 0.9rem;
    transition: all var(--transition-speed);
}

.friend-tags a:hover {
    background: var(--neon-blue);
    color: var(--dark-bg);
    box-shadow: 0 0 10px rgba(5,217,232,0.5);
}

/* 页脚 - 动态年份 */
footer {
    background: var(--darker-bg);
    padding: 2rem 0;
    text-align: center;
    margin-top: 3rem;
    border-top: 1px solid rgba(255,42,109,0.3);
}

.copyright {
    font-size: 0.9rem;
    color: var(--text-dim);
}

/* 响应式设计 - 渐进式适配 */
@media (max-width: 992px) {
    .grid-layout {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--darker-bg);
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
        gap: 1.5rem;
        clip-path: circle(0px at 90% -10%);
        transition: clip-path 0.5s ease-out;
    }
    
    .nav-menu.active {
        clip-path: circle(1000px at 90% -10%);
    }
    
    .hero-section {
        padding: 2rem 1rem;
    }
    
    .article-title {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .grid-layout {
        grid-template-columns: 1fr;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .pagination {
        flex-direction: column;
    }
}

/* 渐进式交互增强 */
@media (prefers-reduced-motion: no-preference) {
    .card, .article-image, .pagination a, .friend-tags a {
        will-change: transform, box-shadow;
    }
}

/* 暗黑模式增强 */
@media (prefers-color-scheme: dark) {
    body {
        background-color: var(--darker-bg);
    }
    
    .card {
        background: rgba(5,1,15,0.8);
    }
}