/* 全局样式重置与基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2c3e50;
    --secondary-color: #7f8c8d;
    --accent-color: #e74c3c;
    --light-color: #f9f9f9;
    --lighter-color: #ffffff;
    --dark-color: #1a1a1a;
    --border-color: #e0e0e0;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Serif SC', serif;
    color: var(--dark-color);
    background-color: var(--light-color);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* 主容器布局 */
.container {
    display: flex;
    min-height: 100vh;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

/* 侧边栏样式 */
.sidebar {
    width: 320px;
    background-color: var(--lighter-color);
    padding: var(--spacing-xl) var(--spacing-lg);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    z-index: 10;
    position: relative;
    min-height: 100vh;
}

.site-title {
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.site-title h1 {
    font-family: 'Ma Shan Zheng', cursive;
    font-size: 2.8rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}

.title-line {
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 0 auto 1rem;
}

.subtitle {
    font-size: 0.9rem;
    color: var(--secondary-color);
    font-weight: 300;
    letter-spacing: 1px;
}

.sidebar-content {
    flex: 1;
}

/* 今日诗词样式 */
.daily-poem {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: rgba(231, 76, 60, 0.05);
    border-radius: var(--border-radius);
    border-left: 3px solid var(--accent-color);
}

.daily-poem h3 {
    color: var(--primary-color);
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#poem-content {
    font-style: italic;
    color: var(--primary-color);
}

.poem-line {
    margin-bottom: 0.5rem;
    line-height: 1.8;
    font-size: 1.05rem;
}

.poem-author {
    text-align: right;
    font-size: 0.9rem;
    color: var(--secondary-color);
    margin-top: 0.5rem;
}

/* 今日日历样式 */
.today-calendar {
    margin-bottom: var(--spacing-lg);
}

.today-calendar h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.date-display {
    display: flex;
    justify-content: center;
}

.date-box {
    text-align: center;
    padding: 1rem;
    background-color: rgba(52, 152, 219, 0.1);
    border-radius: var(--border-radius);
    min-width: 140px;
    border: 1px solid rgba(52, 152, 219, 0.2);
}

.weekday {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.date-num {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    position: relative;
}

.date-num::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid var(--accent-color);
    z-index: -1;
}

.month-year {
    font-size: 0.9rem;
    color: var(--secondary-color);
    display: flex;
    justify-content: center;
    gap: 0.3rem;
}

.sidebar-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: var(--spacing-lg) 0;
}

/* 联系信息样式 */
.contact {
    margin-bottom: var(--spacing-lg);
    color: var(--secondary-color);
}

.contact p {
    margin-bottom: 0.3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.email {
    color: var(--accent-color);
    word-break: break-all;
    font-size: 0.95rem;
    margin-top: 0.5rem;
    padding-left: 1.5rem;
}

/* 快速链接样式 */
.quick-links {
    margin-bottom: var(--spacing-lg);
}

.quick-links h3 {
    color: var(--primary-color);
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.quick-link {
    display: block;
    padding: 0.5rem 0;
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

.quick-link:last-child {
    border-bottom: none;
}

.quick-link:hover {
    color: var(--accent-color);
    padding-left: 0.5rem;
}

.copyright {
    margin-top: auto;
    text-align: center;
    color: var(--secondary-color);
    font-size: 0.85rem;
    padding-top: var(--spacing-md);
}

.copyright p {
    margin-bottom: 0.3rem;
}

/* 主内容区 */
.main-content {
    flex: 1;
    padding: var(--spacing-xl);
    overflow-y: auto;
    background-color: var(--light-color);
}

.content-section {
    display: none;
    animation: fadeIn 0.5s ease;
}

.content-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 首页样式 */
.hero {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-xl);
}

.hero-text {
    flex: 1;
}

.hero-text h2 {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.hero-text h3 {
    font-size: 2.2rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.hero-line {
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--secondary-color);
    font-style: italic;
}

.hero-image {
    flex: 1;
    height: 300px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    position: relative;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1a2980, #26d0ce);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.1);
}

.image-text {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    font-size: 1.5rem;
    line-height: 1.8;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.welcome {
    background-color: var(--lighter-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow);
    line-height: 1.8;
}

.welcome h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.welcome p {
    color: var(--secondary-color);
    font-size: 1.05rem;
}

/* 日历部分样式 */
.calendar-section {
    margin-bottom: var(--spacing-xl);
}

.section-header {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.section-header h2 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.section-line {
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 0 auto;
}

.section-subtitle {
    color: var(--secondary-color);
    margin-top: 0.5rem;
    font-size: 0.95rem;
}

.calendar-container {
    background-color: var(--lighter-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: var(--spacing-lg);
    max-width: 700px;
    margin: 0 auto;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.calendar-header h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
}

.nav-btn {
    background-color: rgba(52, 152, 219, 0.1);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    cursor: pointer;
    transition: var(--transition);
}

.nav-btn:hover {
    background-color: rgba(52, 152, 219, 0.2);
    transform: scale(1.1);
}

.weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    margin-bottom: 0.5rem;
    text-align: center;
    color: var(--secondary-color);
    font-weight: 500;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.5rem;
}

.day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.day:hover {
    background-color: rgba(52, 152, 219, 0.1);
}

.day.today {
    background-color: var(--accent-color);
    color: white;
    font-weight: 600;
}

.day.other-month {
    color: #ccc;
}

.day.empty {
    visibility: hidden;
}

/* 诗词精选部分样式 */
.poetry-section {
    margin-bottom: var(--spacing-xl);
}

.poetry-selector {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: var(--spacing-lg);
}

.poet-btn {
    padding: 0.7rem 1.5rem;
    background-color: rgba(52, 152, 219, 0.1);
    border: none;
    border-radius: 30px;
    color: var(--primary-color);
    font-family: 'Noto Serif SC', serif;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.poet-btn:hover {
    background-color: rgba(52, 152, 219, 0.2);
    transform: translateY(-2px);
}

.poet-btn.active {
    background-color: var(--accent-color);
    color: white;
}

.poetry-display {
    background-color: var(--lighter-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: var(--spacing-lg);
}

.poet-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.poet-content.active {
    display: block;
}

.poem-card {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.poem-card:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.poem-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    border-left: 3px solid var(--accent-color);
    padding-left: 0.8rem;
}

.poem-text {
    color: var(--secondary-color);
    line-height: 1.8;
    font-size: 1.05rem;
}

.poem-text p {
    margin-bottom: 0.5rem;
}

/* 随机诗词部分样式 */
.random-poem-section {
    background-color: var(--lighter-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: var(--spacing-lg);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.random-poem-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.random-btn {
    padding: 0.8rem 2rem;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 30px;
    font-family: 'Noto Serif SC', serif;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 1.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.random-btn:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.3);
}

.random-poem-display {
    padding: 1.5rem;
    background-color: rgba(231, 76, 60, 0.05);
    border-radius: var(--border-radius);
    border-left: 3px solid var(--accent-color);
}

.random-poem-text {
    font-size: 1.1rem;
    color: var(--primary-color);
    line-height: 1.8;
    font-style: italic;
    margin-bottom: 0.5rem;
}

.random-poem-author {
    text-align: right;
    color: var(--secondary-color);
    font-size: 0.95rem;
}

/* 背景装饰元素 */
.bg-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.bg-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.03;
    background-color: var(--accent-color);
}

.circle-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    right: 5%;
    background-color: #8e2de2;
}

.circle-2 {
    width: 200px;
    height: 200px;
    bottom: 15%;
    left: 5%;
    background-color: #4a00e0;
}

.circle-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    left: 10%;
    background-color: #26d0ce;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        min-height: auto;
        padding: var(--spacing-lg);
    }
    
    .hero {
        flex-direction: column;
    }
    
    .hero-text h2 {
        font-size: 2.5rem;
    }
    
    .hero-text h3 {
        font-size: 1.8rem;
    }
    
    .calendar-container {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .main-content {
        padding: var(--spacing-md);
    }
    
    .hero-text h2 {
        font-size: 2rem;
    }
    
    .hero-text h3 {
        font-size: 1.5rem;
    }
    
    .calendar-container {
        padding: var(--spacing-md);
    }
    
    .poetry-selector {
        flex-direction: column;
        align-items: center;
    }
    
    .poet-btn {
        width: 100%;
        max-width: 250px;
    }
}