/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 根变量 */
:root {
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: rgba(31, 38, 135, 0.37);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --accent-color: #007AFF;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 基础样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

/* 动态背景 */
.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    top: -10%;
    left: -10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    bottom: -15%;
    right: -10%;
    animation-delay: -5s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

/* 主容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    position: relative;
    z-index: 1;
}

/* 毛玻璃卡片 */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px 0 var(--glass-shadow);
    transition: var(--transition);
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px 0 var(--glass-shadow);
}

/* 头部样式 */
.header {
    text-align: center;
    padding: 50px 30px;
    margin-bottom: 40px;
}

.avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.avatar:hover {
    transform: scale(1.05);
    border-color: rgba(255, 255, 255, 0.5);
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.site-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.site-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* 链接容器 */
.links-container {
    margin-bottom: 40px;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

/* 链接卡片 */
.link-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    padding: 30px;
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
    cursor: pointer;
    min-height: 120px;
}

.link-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.35);
    box-shadow: 0 12px 40px 0 var(--glass-shadow);
}

.link-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    flex-shrink: 0;
    transition: var(--transition);
}

.link-card:hover .link-icon {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.link-content {
    flex: 1;
}

.link-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 6px;
    display: block;
}

.link-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    display: block;
    line-height: 1.4;
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 30px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
    }

    .header {
        padding: 40px 20px;
    }

    .site-title {
        font-size: 2rem;
    }

    .links-grid {
        grid-template-columns: 1fr;
    }

    .link-card {
        padding: 25px;
        min-height: 100px;
    }

    .link-icon {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }

    .link-title {
        font-size: 1.1rem;
    }
}

/* 加载动画 */
.loading {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.loading::after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: 10px;
    vertical-align: middle;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}