* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #8b4513;
    --text-color: #333;
    --bg-color: #f9f6f0;
    --card-bg: #fff;
    --border-color: #e0d5c7;
    --hover-color: #a0522d;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: var(--card-bg);
    border-bottom: 2px solid var(--border-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 24px;
    color: var(--primary-color);
    font-weight: bold;
}

.logo a {
    color: inherit;
    text-decoration: none;
}

.nav a {
    margin-left: 30px;
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s;
}

.nav a:hover {
    color: var(--primary-color);
}

/* Search Bar */
.search-bar {
    background: var(--card-bg);
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

.search-form {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
}

.search-input {
    flex: 1;
    padding: 12px 20px;
    border: 2px solid var(--border-color);
    border-radius: 25px 0 0 25px;
    font-size: 16px;
    outline: none;
}

.search-input:focus {
    border-color: var(--primary-color);
}

.search-btn {
    padding: 12px 30px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0 25px 25px 0;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s;
}

.search-btn:hover {
    background: var(--hover-color);
}

/* Dynasty Tabs */
.dynasty-tabs {
    background: var(--card-bg);
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tabs {
    display: flex;
    white-space: nowrap;
}

.tab {
    padding: 8px 20px;
    margin-right: 10px;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 20px;
    transition: all 0.3s;
}

.tab:hover, .tab.active {
    background: var(--primary-color);
    color: white;
}

/* Main Content */
.main {
    padding: 30px 0;
    min-height: calc(100vh - 300px);
}

.section {
    margin-bottom: 40px;
}

.section-title {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}

/* Poem Grid */
.poem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.poem-card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s;
}

.poem-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.poem-title {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.poem-meta {
    font-size: 14px;
    color: #999;
    margin-bottom: 15px;
}

.poem-content {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 15px;
    max-height: 100px;
    overflow: hidden;
}

.poem-footer {
    font-size: 12px;
    color: #999;
    text-align: right;
}

/* Poem List */
.poem-list {
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.poem-item {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background 0.3s;
}

.poem-item:last-child {
    border-bottom: none;
}

.poem-item:hover {
    background: #faf8f5;
}

.poem-item-title {
    font-size: 16px;
    color: var(--text-color);
    margin-bottom: 5px;
}

.poem-item-meta {
    font-size: 14px;
    color: #999;
}

/* Poem Detail */
.poem-detail {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.detail-title {
    font-size: 32px;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 15px;
}

.detail-meta {
    text-align: center;
    color: #999;
    margin-bottom: 30px;
    font-size: 16px;
}

.detail-meta span {
    margin: 0 5px;
}

.author-link {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s;
}

.author-link:hover {
    color: var(--hover-color);
    text-decoration: underline;
}

.poem-meta a {
    color: var(--primary-color);
    text-decoration: none;
}

.poem-meta a:hover {
    text-decoration: underline;
}

.poem-item-meta a {
    color: var(--primary-color);
    text-decoration: none;
}

.poem-item-meta a:hover {
    text-decoration: underline;
}

.detail-content {
    font-size: 20px;
    line-height: 2.2;
    text-align: center;
    padding: 30px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 30px;
}

.detail-section {
    margin-bottom: 30px;
}

.section-subtitle {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 15px;
    padding-left: 15px;
    border-left: 4px solid var(--primary-color);
}

.section-text {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    padding: 15px;
    background: #faf8f5;
    border-radius: 5px;
}

.detail-footer {
    text-align: center;
    color: #999;
    font-size: 14px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

/* Footer */
.footer {
    background: var(--card-bg);
    border-top: 2px solid var(--border-color);
    padding: 30px 0;
    text-align: center;
    color: #999;
    margin-top: 50px;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    .logo {
        font-size: 20px;
    }

    .nav a {
        margin-left: 15px;
        font-size: 14px;
    }

    .search-input, .search-btn {
        font-size: 14px;
        padding: 10px 15px;
    }

    .poem-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .poem-detail {
        padding: 20px;
    }

    .detail-title {
        font-size: 24px;
    }

    .detail-content {
        font-size: 18px;
        line-height: 2;
    }

    .section-subtitle {
        font-size: 18px;
    }

    .section-text {
        font-size: 15px;
    }

    .tabs {
        padding: 0 5px;
    }

    .tab {
        padding: 6px 15px;
        font-size: 14px;
    }

    .author-header {
        padding: 30px 20px;
        flex-direction: column;
        gap: 20px;
    }

    .author-avatar img {
        width: 100px;
        height: 100px;
    }

    .author-name {
        font-size: 28px;
    }

    .author-intro,
    .author-poems {
        padding: 20px;
    }

    .intro-content {
        font-size: 15px;
    }

    .tags-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 10px;
    }

    .tag-item {
        padding: 10px 15px;
        font-size: 14px;
    }

    .tag-header {
        padding: 30px 20px;
    }

    .tag-name {
        font-size: 26px;
    }

    .tag-detail .poem-grid {
        padding: 20px;
    }

    .filter-tabs {
        gap: 8px;
        padding: 15px;
    }

    .filter-tab {
        padding: 6px 15px;
        font-size: 13px;
    }

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

    .author-card {
        padding: 20px 15px;
    }

    .author-card-name {
        font-size: 16px;
    }
}

/* Additional Styles */
.no-result {
    text-align: center;
    padding: 60px 20px;
    color: #999;
    font-size: 16px;
}

.search-tips {
    text-align: center;
    padding: 80px 20px;
}

.search-tips h2 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.search-tips p {
    font-size: 16px;
    color: #999;
}

/* Loading Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.poem-card, .poem-item {
    animation: fadeIn 0.5s ease-out;
}

/* Lazy Load Images */
img.lazy {
    opacity: 0;
    transition: opacity 0.3s;
}

img.lazy.loaded {
    opacity: 1;
}

/* Author Detail */
.author-detail {
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.author-header {
    background: linear-gradient(135deg, #8b4513 0%, #a0522d 100%);
    color: white;
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
}

.author-avatar {
    flex-shrink: 0;
}

.author-avatar img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid rgba(255,255,255,0.3);
}

.author-info {
    text-align: center;
}

.author-name {
    font-size: 36px;
    margin-bottom: 15px;
}

.author-meta {
    font-size: 16px;
    opacity: 0.9;
}

.author-meta span {
    margin: 0 10px;
}

.author-dynasty {
    padding: 5px 15px;
    background: rgba(255,255,255,0.2);
    border-radius: 15px;
}

.author-count {
    padding: 5px 15px;
    background: rgba(255,255,255,0.2);
    border-radius: 15px;
}

.author-intro {
    padding: 40px;
    border-bottom: 1px solid var(--border-color);
}

.intro-content {
    font-size: 16px;
    line-height: 2;
    color: #666;
    text-indent: 2em;
}

.author-poems {
    padding: 40px;
}

.author-poems .section-subtitle {
    margin-bottom: 30px;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 40px;
    padding: 20px 0;
}

.page-link {
    padding: 10px 20px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

.page-link:hover {
    background: var(--hover-color);
}

.page-info {
    color: #999;
    font-size: 14px;
}

/* Tags Page */
.tags-section {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
}

.tags-title {
    font-size: 24px;
    color: var(--text-color);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.tags-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 15px;
}

.tag-item {
    display: block;
    padding: 12px 20px;
    background: #f9f6f0;
    color: var(--text-color);
    text-align: center;
    text-decoration: none;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
    font-size: 15px;
}

.tag-item:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 69, 19, 0.2);
}

/* Tag Detail */
.tag-detail {
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.tag-header {
    background: linear-gradient(135deg, #8b4513 0%, #a0522d 100%);
    color: white;
    padding: 40px;
    text-align: center;
}

.tag-name {
    font-size: 32px;
    margin-bottom: 10px;
}

.tag-count {
    font-size: 16px;
    opacity: 0.9;
}

.tag-detail .poem-grid {
    padding: 30px;
}

.tag-detail .no-result {
    padding: 60px 20px;
}

.nav .active {
    color: var(--primary-color);
    font-weight: bold;
}

/* Filter Tabs */
.page-header-section {
    margin-bottom: 30px;
}

.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.filter-tab {
    padding: 8px 20px;
    background: #f9f6f0;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
    font-size: 14px;
}

.filter-tab:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.filter-tab.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Authors Grid */
.authors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.author-card {
    display: block;
    padding: 25px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s;
}

.author-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.author-card-avatar {
    margin-bottom: 15px;
}

.author-card-avatar img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--border-color);
}

.author-card-name {
    font-size: 18px;
    font-weight: bold;
    color: var(--text-color);
    margin-bottom: 10px;
}

.author-card-meta {
    font-size: 14px;
    color: #999;
}

.author-card-meta span {
    margin: 0 3px;
}

/* Load More */
.load-more-container {
    text-align: center;
    padding: 40px 0;
}

.load-more-btn {
    padding: 12px 40px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 25px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
}

.load-more-btn:hover {
    background: var(--hover-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 69, 19, 0.3);
}

.loading {
    color: #999;
    font-size: 16px;
}

.no-more {
    color: #999;
    font-size: 14px;
}