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

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
    background: linear-gradient(to bottom, #e8f4f8 0%, #b8dce8 100%);
}

/* 页面布局 */
html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
}

/* 全局隐式滚动条 - 0px宽度 */
* {
    scrollbar-width: none;
    scrollbar-color: rgba(102, 126, 234, 0.5) transparent;
}

*::-webkit-scrollbar {
    width: 0px;
    height: 0px;
}

*::-webkit-scrollbar-track {
    background: transparent;
}

*::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

*::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #4a5568;
    overflow-x: hidden;
    background: linear-gradient(to bottom, #e8f4f8 0%, #b8dce8 100%);
}

/* 全屏欢迎页面 */
.welcome-section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    text-align: center;
    position: relative;
    transition: background-image 0.8s ease-in-out;
}

/* 添加深色遮罩层以确保文字可读 */
.welcome-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2); /* 降低遮罩层不透明度，让背景更明亮 */
    z-index: 1;
}

.welcome-content {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 8vh 2rem 6vh;
}

/* 背景样式 - 动态加载 */
/* 背景图片通过 JavaScript 动态设置 */

/* 切换按钮 */
.slide-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: white;
    font-size: 3rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.slide-btn:hover {
    background: rgba(255, 255, 255, 0.5);
    transform: translateY(-50%) scale(1.1);
}

.slide-btn-left {
    left: 30px;
}

.slide-btn-right {
    right: 30px;
}

/* 背景指示器 */
.slide-indicators {
    display: flex;
    gap: 12px;
    margin-top: 1.5rem;
    justify-content: center;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s;
}

.indicator:hover {
    background: rgba(255, 255, 255, 0.7);
    transform: scale(1.2);
}

.indicator.active {
    background: white;
    width: 30px;
    border-radius: 6px;
}

.welcome-content {
    animation: fadeInUp 1s ease-out;
}

.welcome-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.welcome-subtitle {
    font-size: 1.5rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    cursor: pointer;
    z-index: 10;
    text-align: center;
}

.scroll-indicator span {
    display: none; /* 隐藏"向下滚动"文字 */
}

.scroll-arrow {
    font-size: 2rem;
    animation: bounce 2s infinite;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* 主要内容区域 */
.main-content {
    min-height: 100vh;
    background-image: url('../images/main-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    display: flex;
    flex-direction: column;
}

/* 导航栏 */
.site-header {
    background: linear-gradient(135deg, rgba(135, 206, 235, 0.5) 0%, rgba(152, 216, 200, 0.5) 100%);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transform: translateY(-100%);
    transition: transform 0.5s ease-in-out, box-shadow 0.3s;
    backdrop-filter: blur(10px);
}

.site-header.visible {
    transform: translateY(0);
}

.navbar {
    max-width: min(1300px, 80%);
    width: 80%;
    margin: 0 auto;
    padding: clamp(0.8rem, 1.5vw, 1rem) clamp(1.5rem, 2vw, 2rem);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1a4456;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.3);
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    margin-left: auto;
    margin-right: 0.5rem;
}

.nav-menu a {
    text-decoration: none;
    color: #1a4456;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.3s;
    text-shadow: 0.5px 0.5px 1px rgba(255, 255, 255, 0.2);  
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
}

.nav-menu a:hover {
    color: #2c5f7c;
    border-bottom-color: #2c5f7c;
}

.nav-menu a.active {
    color: #2c5f7c;
    font-weight: 700;
    border-bottom-color: #2c5f7c;
}

/* 内容区域 */
.content-area {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: clamp(2rem, 3vw, 3rem) 0;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 主内容悬浮容器 - 响应式自适应 */
.main-content-box {
    background: rgba(255, 255, 255, 0.1); /* 90%透明度 */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: clamp(1.5rem, 3vw, 3rem);
    width: min(1200px, 80%);
    max-width: 80%;
    margin: 2rem 0;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15), 
                0 2px 8px rgba(0, 0, 0, 0.08),
                inset 0 1px 0 rgba(255, 255, 255, 0.8); /* 内阴影增加层次 */
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    animation: floatIn 0.8s ease-out;
    border: 2px solid rgba(255, 255, 255, 0.6); /* 增强边框 */
    position: relative;
}

.main-content-box::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, 
        rgba(135, 206, 235, 0.4) 0%, 
        rgba(152, 216, 200, 0.4) 50%,
        rgba(135, 206, 235, 0.4) 100%);
    border-radius: 20px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.main-content-box:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.2); /* hover时稍微降低透明度 */
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2), 
                0 5px 15px rgba(0, 0, 0, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.main-content-box:hover::before {
    opacity: 1;
}

@keyframes floatIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 名言警句区域 */
.quote-section {
    text-align: center;
    padding-bottom: 2rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.02);
}

.quote-text {
    font-size: 0.95rem;
    color: #a0aec0;
    font-style: italic;
    line-height: 1.8;
    letter-spacing: 0.5px;
    opacity: 0.8;
    transition: opacity 0.5s ease;
}

.quote-text:hover {
    opacity: 1;
}

/* 文章模块 - 响应式自适应 */
.articles-section {
    margin-top: 3rem;
    margin-bottom: 3rem;
    width: min(1400px, 80%);
    max-width: 80%;
    margin-left: auto;
    margin-right: auto;
    background: rgba(255, 255, 255, 0.1); /* 90%透明度 */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: clamp(1.5rem, 3vw, 3rem);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15),
                inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border: 2px solid rgba(255, 255, 255, 0.6); /* 增强边框 */
    transition: background 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
    position: relative;
}

.articles-section::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, 
        rgba(135, 206, 235, 0.4) 0%, 
        rgba(152, 216, 200, 0.4) 50%,
        rgba(135, 206, 235, 0.4) 100%);
    border-radius: 20px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.articles-section:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2),
                inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.articles-section:hover::before {
    opacity: 1;
}

.articles-title {
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2.5rem;
    color: #000000;
    letter-spacing: 0.3rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
    animation: articlesTitleFloat 3s ease-in-out infinite;
    font-family: 'Arial Black', 'Impact', sans-serif;
}

.articles-title::before {
    content: '📝 ARTICLES';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(0, 0, 0, 0.1);
    filter: blur(8px);
    z-index: -1;
}

@keyframes articlesTitleFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

.articles-section h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #2c5f7c;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.5);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.article-card {
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(135, 206, 235, 0.2);
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.article-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.6);
    box-shadow: 0 15px 35px rgba(135, 206, 235, 0.4);
}

.article-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.article-card:hover .article-image img {
    transform: scale(1.1);
}

.article-category {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(255, 255, 255, 0.95);
    color: #2c5f7c;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.article-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.article-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    gap: 1rem;
}

.article-content h3 {
    font-size: 1.3rem;
    color: #2c5f7c;
    font-weight: 600;
    line-height: 1.4;
    flex: 1;
    margin: 0;
}

.article-date {
    color: #7ba3b8;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    white-space: nowrap;
    flex-shrink: 0;
}

.article-excerpt {
    color: #5a7a8a;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    font-size: 0.95rem;
    flex: 1;
}

.read-more {
    display: inline-block;
    color: #4a90a4;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    background: linear-gradient(135deg, #e8f4f8 0%, #d0e8f0 100%);
    align-self: flex-start;
}

.read-more:hover {
    color: white;
    background: linear-gradient(135deg, #98D8C8 0%, #87CEEB 100%);
    transform: translateX(5px);
}

/* 页脚 - 与导航栏保持一致 */
.site-footer {
    background: var(--nav-bg) !important;
    color: var(--nav-text);
    text-align: center;
    padding: 1rem 1rem 0.8rem;
    margin-top: auto;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border-top: 1px solid var(--nav-border);
}

.footer-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto 0.8rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--nav-border);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.6rem 1.5rem;
    background: var(--nav-track-bg);
    border-radius: 22px;
    transition: all 0.3s;
    white-space: nowrap;
    min-width: 160px;
    border: 1px solid var(--nav-track-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.stat-item:hover {
    background: var(--nav-search-focus-bg);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border-color: var(--nav-border);
}

.stat-icon {
    font-size: 1.6rem;
    line-height: 1;
    color: var(--nav-text);
}

.stat-info {
    display: flex;
    flex-direction: row;
    align-items: baseline;
    gap: 0.25rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--nav-text-secondary);
    font-weight: 600;
    line-height: 1;
    order: -1;
}

.stat-label::after {
    content: '：';
}

.stat-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--nav-text);
    line-height: 1;
    order: 1;
}

.footer-copyright {
    color: var(--nav-text-secondary);
    font-size: 0.8rem;
    opacity: 0.8;
}

.footer-copyright p {
    margin: 0;
    line-height: 1.4;
}

/* 响应式设计 - 多断点优化 */

/* 超大屏幕 (>1920px) */
@media (min-width: 2100px) {
    .main-content-box,
    .articles-section {
        width: min(1500px, 80%);
        max-width: 80%;
    }
}

/* 超大屏幕 (>1920px) */
@media (min-width: 1920px) and (max-width: 2100px) {
    .main-content-box,
    .articles-section {
        width: min(1300px, 80%);
        max-width: 80%;
    }
}

/* 大屏幕 (1440px - 1920px) */
@media (min-width: 1440px) and (max-width: 1920px) {
    .main-content-box,
    .articles-section {
        width: min(1200px, 80%);
        max-width: 80%;
    }
}

/* 中等屏幕 (1024px - 1439px) */
@media (min-width: 1024px) and (max-width: 1439px) {
    .main-content-box,
    .articles-section {
        width: 80%;
        max-width: 80%;
    }
    
    .footer-stats {
        flex-wrap: wrap;
        gap: 2rem;
        max-width: 800px;
    }
    
    .stat-item {
        min-width: 150px;
        padding: 0.5rem 1.2rem;
    }
}

/* 平板屏幕 (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    .main-content-box,
    .articles-section {
        width: 75%;
        max-width: 75%;
        padding: clamp(1.5rem, 2.5vw, 2.5rem);
    }
    
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 手机屏幕 (<768px) */
@media (max-width: 767px) {
    .welcome-title {
        font-size: 2.5rem;
    }
    
    .welcome-subtitle {
        font-size: 1.2rem;
    }
    
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-menu a {
        font-size: 0.9rem;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .article-image {
        height: 180px;
    }
    
    .content-area {
        padding: 2rem 0;
    }
    
    .main-content-box,
    .articles-section {
        width: 95%;
        max-width: 95%;
        padding: 1.5rem;
        border-radius: 15px;
    }
    
    .articles-title {
        font-size: 2.5rem;
        letter-spacing: 0.2rem;
    }
    
    .footer-stats {
        flex-wrap: wrap;
        gap: 1.2rem;
        justify-content: center;
    }
    
    .stat-item {
        min-width: 140px;
        max-width: 180px;
        justify-content: center;
        padding: 0.5rem 1rem;
    }
    
    .stat-icon {
        font-size: 1.4rem;
    }
    
    .stat-label {
        font-size: 0.9rem;
    }
    
    .stat-value {
        font-size: 1.1rem;
    }
    
    .site-footer {
        padding: 1.2rem 1rem 0.8rem;
    }
}

/* ========== 头像样式 ========== */
.site-avatar {
    width: 40px;
    height: 40px;
    min-width: 40px; /* 防止被压缩 */
    min-height: 40px;
    aspect-ratio: 1 / 1; /* 确保1:1比例 */
    border-radius: 50%;
    object-fit: cover;
    margin-right: 12px;
    border: 2px solid #4fc3f7;
    box-shadow: 0 2px 8px rgba(79, 195, 247, 0.3);
    transition: all 0.3s ease;
    vertical-align: middle;
    flex-shrink: 0; /* 防止flex布局压缩 */
    display: block;
}

.site-avatar:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 4px 12px rgba(79, 195, 247, 0.5);
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #2c5f7c;
}

.logo span {
    display: inline-block;
}


/* 文章网格布局响应式 */
@media (max-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 768px) {
    .articles-grid {
        grid-template-columns: 1fr !important;
    }
}


/* 相册网格布局响应式 */
@media (max-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: 1fr !important;
    }
}


/* ========================================
   分页样式
   ======================================== */
.pagination-container {
    display: flex;
    justify-content: center;
    margin: 3rem 0 2rem;
    padding: 0 1rem;
}

.pagination {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

.page-btn {
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 2px solid #e0e0e0;
    background: white;
    color: #666;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-btn:hover {
    border-color: #4fc3f7;
    color: #4fc3f7;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 195, 247, 0.2);
}

.page-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: #667eea;
    color: white;
    cursor: default;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.page-btn.active:hover {
    transform: none;
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 响应式 */
@media (max-width: 768px) {
    .pagination-container {
        margin: 2rem 0 1rem;
    }
    
    .page-btn {
        min-width: 36px;
        height: 36px;
        padding: 0 10px;
        font-size: 13px;
    }
}


/* ========================================
   分页容器样式
   ======================================== */

.pagination-container {
    margin: 3rem 0;
    padding: 2rem;
    text-align: center;
}

.pagination {
    display: inline-flex;
    gap: 0.5rem;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}