/* 禅宗极简冬季主题样式 - 全屏自适应 */
:root {
    --winter-primary: #2c3e50;
    --winter-secondary: #34495e;
    --winter-accent: #3498db;
    --winter-light: #ecf0f1;
    --winter-snow: #ffffff;
    --winter-ice: #a8d0e6;
    --winter-text: #333333;
    --winter-text-light: #7f8c8d;
    --winter-border: #bdc3c7;
    --winter-shadow: rgba(44, 62, 80, 0.1);
    --header-height: 80px;
    --footer-height: 120px;
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow-x: hidden;
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: var(--winter-text);
    background-color: #f5f7fa;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(168, 208, 230, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(168, 208, 230, 0.1) 0%, transparent 20%);
    scroll-behavior: smooth;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* 雪花效果 - 全屏覆盖 */
.snowflakes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: -1;
}

.snowflake {
    position: absolute;
    color: var(--winter-ice);
    font-size: clamp(1rem, 2vw, 1.5rem);
    opacity: 0.7;
    animation: fall linear infinite;
    user-select: none;
}

@keyframes fall {
    to {
        transform: translateY(100vh) rotate(360deg);
    }
}

/* 创建不同大小和速度的雪花 */
.snowflake:nth-child(2n) {
    font-size: clamp(0.8rem, 1.5vw, 1.2rem);
    animation-duration: 10s;
}

.snowflake:nth-child(3n) {
    font-size: clamp(1.2rem, 2.5vw, 2rem);
    animation-duration: 15s;
}

.snowflake:nth-child(4n) {
    font-size: clamp(0.6rem, 1.2vw, 1rem);
    animation-duration: 8s;
}

/* 主容器 - 全屏 */
.container {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0;
    flex: 1 0 auto;
    display: flex;
    flex-direction: column;
}

/* 头部样式 - 全屏宽度 */
.header {
    width: 100%;
    padding: 1.5rem 5%;
    border-bottom: 1px solid var(--winter-border);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: var(--header-height);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
}

.logo {
    text-align: center;
    margin-bottom: 1rem;
}

.logo h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.8rem, 5vw, 3rem);
    color: var(--winter-primary);
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
    line-height: 1.2;
}

.subtitle {
    color: var(--winter-text-light);
    font-size: clamp(0.8rem, 2vw, 1rem);
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* 移动端菜单切换按钮 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--winter-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
}

/* 导航菜单 - 全屏自适应 */
.nav {
    width: 100%;
}

.nav ul {
    display: flex;
    list-style: none;
    justify-content: center;
    flex-wrap: wrap;
    gap: clamp(0.5rem, 2vw, 2rem);
    padding: 0;
    margin: 0;
}

.nav a {
    text-decoration: none;
    color: var(--winter-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    position: relative;
    transition: all 0.3s ease;
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    border-radius: 4px;
}

.nav a:hover {
    color: var(--winter-accent);
    background-color: rgba(52, 152, 219, 0.1);
}

.nav a.active {
    color: var(--winter-accent);
    font-weight: 600;
}

.nav a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background-color: var(--winter-accent);
}

.admin-link {
    color: var(--winter-accent) !important;
    font-weight: 600 !important;
    background-color: rgba(52, 152, 219, 0.1) !important;
}

/* 主内容区 - 全屏自适应 */
.main-content {
    width: 100%;
    padding: clamp(1rem, 3vw, 3rem) 5%;
    flex: 1;
}

/* Hero区域 - 全屏 */
.hero {
    width: 100%;
    background: linear-gradient(135deg, var(--winter-ice) 0%, var(--winter-snow) 100%);
    padding: clamp(3rem, 8vw, 6rem) 5%;
    margin-bottom: clamp(2rem, 4vw, 3rem);
    text-align: center;
    border-radius: 0;
    box-shadow: 0 10px 30px var(--winter-shadow);
}

.hero-content h2 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 6vw, 3.5rem);
    color: var(--winter-primary);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: clamp(1rem, 3vw, 1.5rem);
    color: var(--winter-secondary);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 内容区块 */
.welcome-section, .shuoshuo-page, .contact-page {
    width: 100%;
    background: var(--winter-snow);
    padding: clamp(1.5rem, 4vw, 2.5rem);
    border-radius: 8px;
    margin-bottom: clamp(2rem, 4vw, 3rem);
    box-shadow: 0 5px 20px var(--winter-shadow);
    border-left: 4px solid var(--winter-accent);
    position: relative;
}

.welcome-section h3, .shuoshuo-page h2, .contact-page h2 {
    color: var(--winter-primary);
    margin-bottom: 1.5rem;
    font-size: clamp(1.5rem, 4vw, 2rem);
    line-height: 1.3;
}

.content, .shuoshuo-content, .contact-content {
    line-height: 1.8;
    color: var(--winter-text);
    font-size: clamp(1rem, 2vw, 1.1rem);
}

.edit-link {
    display: inline-block;
    margin-top: 1.5rem;
    color: var(--winter-accent);
    text-decoration: none;
    font-weight: 500;
    font-size: clamp(0.9rem, 2vw, 1rem);
}

.edit-link:hover {
    text-decoration: underline;
}

/* 文章网格 - 全屏自适应 */
.recent-articles {
    width: 100%;
}

.recent-articles h3 {
    color: var(--winter-primary);
    margin-bottom: clamp(1.5rem, 3vw, 2rem);
    font-size: clamp(1.5rem, 4vw, 2rem);
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
    gap: clamp(1rem, 3vw, 2rem);
    margin-bottom: clamp(1.5rem, 3vw, 2rem);
    width: 100%;
}

.article-card {
    background: var(--winter-snow);
    padding: clamp(1rem, 3vw, 1.5rem);
    border-radius: 8px;
    box-shadow: 0 5px 15px var(--winter-shadow);
    transition: all 0.3s ease;
    border-top: 3px solid var(--winter-ice);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--winter-shadow);
}

.article-card h4 {
    margin-bottom: 0.5rem;
    flex: 0 0 auto;
}

.article-card h4 a {
    color: var(--winter-primary);
    text-decoration: none;
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
    line-height: 1.4;
}

.article-card h4 a:hover {
    color: var(--winter-accent);
}

.date {
    color: var(--winter-text-light);
    font-size: clamp(0.8rem, 1.5vw, 0.9rem);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 5px;
    flex: 0 0 auto;
}

.excerpt {
    color: var(--winter-text);
    margin-bottom: 1.5rem;
    line-height: 1.6;
    font-size: clamp(0.9rem, 1.8vw, 1rem);
    flex: 1 1 auto;
}

.read-more {
    display: inline-block;
    color: var(--winter-accent);
    text-decoration: none;
    font-weight: 500;
    border: 1px solid var(--winter-accent);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    font-size: clamp(0.9rem, 1.8vw, 1rem);
    text-align: center;
    flex: 0 0 auto;
}

.read-more:hover {
    background: var(--winter-accent);
    color: var(--winter-snow);
}

.view-all {
    text-align: center;
    margin-top: clamp(1rem, 2vw, 2rem);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    background: var(--winter-accent);
    color: var(--winter-snow);
    padding: clamp(0.7rem, 1.5vw, 0.9rem) clamp(1.5rem, 3vw, 2rem);
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: clamp(0.9rem, 1.8vw, 1rem);
}

.btn:hover {
    background: var(--winter-primary);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--winter-shadow);
}

.btn-secondary {
    background: var(--winter-text-light);
}

.btn-secondary:hover {
    background: var(--winter-secondary);
}

/* 文章列表样式 */
.articles-list {
    width: 100%;
}

.articles-list h2 {
    color: var(--winter-primary);
    margin-bottom: clamp(1.5rem, 3vw, 2rem);
    font-size: clamp(1.8rem, 4vw, 2.2rem);
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
}

.articles-container {
    display: flex;
    flex-direction: column;
    gap: clamp(1.5rem, 3vw, 2rem);
}

.article-item {
    background: var(--winter-snow);
    padding: clamp(1.5rem, 3vw, 2rem);
    border-radius: 8px;
    box-shadow: 0 5px 15px var(--winter-shadow);
    border-left: 4px solid var(--winter-ice);
    transition: all 0.3s ease;
}

.article-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px var(--winter-shadow);
}

.article-item h3 {
    margin-bottom: 0.5rem;
}

.article-item h3 a {
    color: var(--winter-primary);
    text-decoration: none;
    font-size: clamp(1.3rem, 3vw, 1.6rem);
    line-height: 1.4;
}

.article-item h3 a:hover {
    color: var(--winter-accent);
}

.no-articles {
    text-align: center;
    padding: clamp(2rem, 5vw, 4rem);
    color: var(--winter-text-light);
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
}

/* 单篇文章 */
.single-article {
    width: 100%;
    max-width: 100%;
    background: var(--winter-snow);
    padding: clamp(1.5rem, 4vw, 3rem);
    border-radius: 8px;
    box-shadow: 0 5px 20px var(--winter-shadow);
}

.single-article h2 {
    color: var(--winter-primary);
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-meta {
    color: var(--winter-text-light);
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--winter-border);
    font-size: clamp(0.9rem, 1.8vw, 1rem);
}

.article-content {
    font-size: clamp(1rem, 2vw, 1.1rem);
    line-height: 1.8;
    margin-bottom: 2rem;
}

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

.article-footer {
    padding-top: 2rem;
    border-top: 1px solid var(--winter-border);
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--winter-accent);
    text-decoration: none;
    font-weight: 500;
    font-size: clamp(0.9rem, 1.8vw, 1rem);
}

.error-message {
    background: var(--winter-snow);
    padding: clamp(2rem, 4vw, 3rem);
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 20px var(--winter-shadow);
}

.error-message h3 {
    color: var(--winter-primary);
    margin-bottom: 1rem;
    font-size: clamp(1.5rem, 3vw, 2rem);
}

.error-message p {
    margin-bottom: 2rem;
    color: var(--winter-text-light);
    font-size: clamp(1rem, 2vw, 1.1rem);
}

/* 联系表单 */
.contact-form {
    background: var(--winter-light);
    padding: clamp(1.5rem, 3vw, 2rem);
    border-radius: 8px;
    margin-top: 2rem;
    width: 100%;
}

.contact-form h3 {
    color: var(--winter-primary);
    margin-bottom: 1.5rem;
    font-size: clamp(1.2rem, 3vw, 1.5rem);
}

.form-group {
    margin-bottom: 1.5rem;
    width: 100%;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--winter-secondary);
    font-weight: 500;
    font-size: clamp(0.9rem, 1.8vw, 1rem);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: clamp(0.7rem, 1.5vw, 0.9rem);
    border: 1px solid var(--winter-border);
    border-radius: 4px;
    font-family: 'Noto Sans SC', sans-serif;
    font-size: clamp(0.9rem, 1.8vw, 1rem);
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--winter-accent);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-message {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 4px;
    display: none;
    width: 100%;
}

.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* 页脚 - 全屏宽度 */
.footer {
    width: 100%;
    margin-top: auto;
    padding: clamp(1.5rem, 3vw, 2rem) 5%;
    border-top: 1px solid var(--winter-border);
    text-align: center;
    color: var(--winter-text-light);
    background-color: rgba(255, 255, 255, 0.95);
    min-height: var(--footer-height);
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-content {
    max-width: 1200px;
    width: 100%;
}

.footer-description {
    margin: 0.5rem 0;
    font-style: italic;
    font-size: clamp(0.9rem, 1.8vw, 1rem);
}

.footer-links {
    margin-top: 1rem;
}

.footer-links a {
    color: var(--winter-text-light);
    text-decoration: none;
    margin: 0 0.5rem;
    font-size: clamp(0.9rem, 1.8vw, 1rem);
}

.footer-links a:hover {
    color: var(--winter-accent);
}

/* 登录页面 - 全屏 */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    width: 100vw;
    background: linear-gradient(135deg, var(--winter-ice) 0%, var(--winter-snow) 100%);
    padding: 5%;
}

.login-container {
    width: 100%;
    max-width: min(500px, 90vw);
}

.login-header {
    text-align: center;
    margin-bottom: clamp(1.5rem, 3vw, 2rem);
    color: var(--winter-primary);
}

.login-header h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.login-box {
    background: var(--winter-snow);
    padding: clamp(2rem, 4vw, 2.5rem);
    border-radius: 10px;
    box-shadow: 0 15px 35px rgba(44, 62, 80, 0.15);
    width: 100%;
}

.login-box h2 {
    color: var(--winter-primary);
    margin-bottom: 1.5rem;
    text-align: center;
    font-size: clamp(1.5rem, 3vw, 1.8rem);
}

.btn-login {
    width: 100%;
    background: var(--winter-accent);
    color: var(--winter-snow);
    padding: clamp(0.8rem, 1.8vw, 1rem);
    border: none;
    border-radius: 4px;
    font-size: clamp(1rem, 2vw, 1.1rem);
    font-weight: 500;
    cursor: pointer;
    transition: background 0.3s ease;
}

.btn-login:hover {
    background: var(--winter-primary);
}

.login-footer {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--winter-text-light);
    font-size: clamp(0.8rem, 1.5vw, 0.9rem);
}

.login-footer a {
    color: var(--winter-accent);
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
}

/* 后台管理页面 - 全屏自适应 */
.dashboard-page {
    min-height: 100vh;
    width: 100vw;
    background: var(--winter-light);
    display: flex;
    flex-direction: column;
}

.dashboard-container {
    display: flex;
    flex: 1;
    width: 100%;
    min-height: calc(100vh - var(--footer-height));
}

.sidebar {
    width: clamp(250px, 25vw, 300px);
    background: var(--winter-primary);
    color: var(--winter-snow);
    padding: clamp(1rem, 2vw, 2rem) 0;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 10;
}

.sidebar-header {
    padding: 0 clamp(1rem, 2vw, 1.5rem) clamp(1rem, 2vw, 2rem);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
    font-size: clamp(1.2rem, 2.5vw, 1.5rem);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-nav {
    padding: clamp(1rem, 2vw, 1.5rem) 0;
    flex: 1;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: 0.5rem;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: clamp(0.7rem, 1.5vw, 0.8rem) clamp(1rem, 2vw, 1.5rem);
    transition: all 0.3s ease;
    font-size: clamp(0.9rem, 1.8vw, 1rem);
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--winter-snow);
    border-left: 3px solid var(--winter-accent);
}

.sidebar-footer {
    padding: clamp(1rem, 2vw, 1.5rem);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: clamp(0.8rem, 1.5vw, 0.9rem);
}

.sidebar-footer a {
    color: var(--winter-ice);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 0.5rem;
    font-size: clamp(0.8rem, 1.5vw, 0.9rem);
}

.dashboard-main {
    flex: 1;
    padding: clamp(1rem, 2vw, 2rem);
    overflow-y: auto;
    max-height: calc(100vh - var(--header-height));
}

.dashboard-header {
    margin-bottom: clamp(1.5rem, 3vw, 2rem);
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--winter-border);
}

.dashboard-header h1 {
    color: var(--winter-primary);
    margin-bottom: 0.5rem;
    font-size: clamp(1.5rem, 3vw, 2rem);
}

.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(200px, 100%), 1fr));
    gap: clamp(1rem, 2vw, 1.5rem);
    margin-bottom: clamp(2rem, 4vw, 3rem);
    width: 100%;
}

.card {
    background: var(--winter-snow);
    padding: clamp(1rem, 2vw, 1.5rem);
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 15px var(--winter-shadow);
    border-top: 3px solid var(--winter-accent);
}

.card h3 {
    font-size: clamp(0.9rem, 1.8vw, 1rem);
    color: var(--winter-text-light);
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.card-number {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--winter-primary);
    margin-bottom: 0.5rem;
}

.publish-article, .edit-page, .existing-articles {
    background: var(--winter-snow);
    padding: clamp(1.5rem, 3vw, 2rem);
    border-radius: 8px;
    margin-bottom: clamp(1.5rem, 3vw, 2rem);
    box-shadow: 0 5px 15px var(--winter-shadow);
    width: 100%;
}

.publish-article h2, .edit-page h2, .existing-articles h2 {
    color: var(--winter-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: clamp(1.3rem, 2.5vw, 1.5rem);
}

.form-actions {
    display: flex;
    gap: clamp(0.5rem, 1.5vw, 1rem);
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.articles-table {
    overflow-x: auto;
    width: 100%;
}

.articles-table table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.articles-table th {
    background: var(--winter-light);
    color: var(--winter-primary);
    text-align: left;
    padding: clamp(0.8rem, 1.5vw, 1rem);
    font-weight: 600;
    font-size: clamp(0.9rem, 1.8vw, 1rem);
}

.articles-table td {
    padding: clamp(0.8rem, 1.5vw, 1rem);
    border-bottom: 1px solid var(--winter-border);
    font-size: clamp(0.9rem, 1.8vw, 1rem);
}

.articles-table tr:hover {
    background: var(--winter-light);
}

.btn-small {
    display: inline-block;
    background: var(--winter-accent);
    color: var(--winter-snow);
    padding: clamp(0.3rem, 1vw, 0.5rem) clamp(0.6rem, 1.5vw, 1rem);
    border-radius: 3px;
    text-decoration: none;
    font-size: clamp(0.8rem, 1.5vw, 0.9rem);
    transition: background 0.3s ease;
}

.btn-small:hover {
    background: var(--winter-primary);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .dashboard-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1000;
    }
    
    .sidebar.active {
        max-height: 500px;
    }
    
    .dashboard-main {
        padding-top: 3rem;
    }
}

@media (max-width: 768px) {
    .header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 1rem 5%;
    }
    
    .logo {
        margin-bottom: 0;
        text-align: left;
        flex: 1;
    }
    
    .logo h1 {
        font-size: clamp(1.5rem, 4vw, 2rem);
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        padding: 1rem;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        z-index: 1000;
    }
    
    .nav.active {
        display: block;
    }
    
    .nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .nav a {
        display: block;
        padding: 0.8rem 1rem;
        text-align: center;
    }
    
    .nav a.active::after {
        width: 20px;
        left: 50%;
        transform: translateX(-50%);
    }
    
    .hero {
        padding: 3rem 5%;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .dashboard-cards {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: clamp(1.8rem, 5vw, 2.2rem);
    }
    
    .hero-content p {
        font-size: clamp(1rem, 3vw, 1.2rem);
    }
    
    .welcome-section, .shuoshuo-page, .contact-page {
        padding: 1.5rem;
    }
    
    .single-article {
        padding: 1.5rem;
    }
    
    .login-box {
        padding: 1.5rem;
    }
}

/* 确保所有图片自适应 */
img {
    max-width: 100%;
    height: auto;
}

/* 确保所有表格自适应 */
table {
    width: 100%;
}

/* 确保所有表单元素自适应 */
input, textarea, select, button {
    font-size: clamp(0.9rem, 1.8vw, 1rem);
}

/* 隐藏滚动条但仍可滚动 */
.dashboard-main::-webkit-scrollbar {
    width: 8px;
}

.dashboard-main::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.dashboard-main::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

.dashboard-main::-webkit-scrollbar-thumb:hover {
    background: #555;
}