/* 主容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    padding-bottom: 8rem; /* 为固定footer留出空间 */
    position: relative;
    z-index: 1;
}

/* 顶部导航栏 */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-size: 1.5rem;
    color: white;
}

.logo-text {
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* 时间天气卡片 */
.time-weather-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    color: white;
    text-align: center;
    min-width: 200px;
}

.date {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.time {
    font-size: 2rem;
    font-weight: 300;
    font-family: 'Courier New', monospace;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}

.weather {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 主要内容区域 */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

/* 问候语卡片 */
.greeting-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    color: white;
    position: relative;
}

.greeting-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.3);
    font-family: serif;
}

.greeting-card::after {
    content: '"';
    position: absolute;
    bottom: -20px;
    right: 20px;
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.3);
    font-family: serif;
}

.hello-text {
    font-size: 2rem;
    font-weight: 300;
    margin-bottom: 1rem;
    font-style: italic;
}

.description {
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.9;
}

/* 社交媒体链接 */
.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.social-icon:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* 导航卡片网格 */
.navigation-section {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.section-title {
    color: white;
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    text-align: center;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.nav-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.nav-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.15);
    text-align: center;
    transition: all 0.3s ease;
    text-decoration: none;
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    min-height: 120px;
}

.nav-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.nav-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.nav-title {
    font-size: 0.9rem;
    font-weight: 500;
}

/* 页脚 */
.footer {
    background: lab(0% 0 0 / 0);
    border-radius: 0px;
    padding: 0rem;
    border: none;
    box-shadow: none;
    color: #ffffffd8;
    text-align: center;
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 4rem);
    max-width: 1200px;
    z-index: 1000;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.footer-description {
    opacity: 0.8;
    font-size: 0.9rem;
}

.record-info {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.record-info a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.record-info a:hover {
    color: white;
}

.copyright {
    margin-top: 1rem;
    opacity: 0.6;
    font-size: 0.8rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
        padding-bottom: 10rem; /* 移动端需要更多空间 */
    }
    
    .header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .main-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .nav-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .time-weather-card {
        min-width: auto;
        width: 100%;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding-bottom: 12rem; /* 小屏幕需要更多空间 */
    }
    
    .nav-grid {
        grid-template-columns: 1fr;
    }
    
    .hello-text {
        font-size: 1.5rem;
    }
    
    .time {
        font-size: 1.5rem;
    }
}