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

:root {
    --primary-color: #4a90e2;
    --primary-light: #6ba3f0;
    --primary-dark: #357abd;
    --secondary-color: #2c3e50;
    --secondary-light: #34495e;
    --accent-color: #e74c3c;
    --accent-light: #ec7063;
    --success-color: #2ecc71;
    --success-light: #58d68d;
    --warning-color: #f39c12;
    --warning-light: #f7c52d;
    --light-gray: #f8f9fa;
    --medium-gray: #6c757d;
    --dark-gray: #343a40;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 6px 15px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-light) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
    --gradient-success: linear-gradient(135deg, var(--success-color) 0%, var(--success-light) 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #667eea 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.3) 100%);
    
    /* 高级渐变效果 */
    --gradient-rainbow: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #f5576c 75%, #4facfe 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.1) 100%);
    --gradient-shimmer: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.4) 50%, transparent 100%);
    --gradient-glow: radial-gradient(circle, rgba(74,144,226,0.3) 0%, transparent 70%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.65;
    color: var(--dark-gray);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    overflow-x: hidden;
    animation: pageEnter 0.8s ease-out;
}

/* 全局鼠标跟随光效 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle 200px at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(74,144,226,0.1) 0%, transparent 40%);
    pointer-events: none;
    z-index: 10000;
    transition: opacity 0.3s ease;
    opacity: 0;
}

body.mouse-moved::before {
    opacity: 1;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: var(--transition);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gradient-accent);
    box-shadow: 0 0 10px rgba(74,144,226,0.5);
}

/* Firefox 滚动条 */
html {
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) rgba(255,255,255,0.1);
}

/* 页面进入动画 */
@keyframes pageEnter {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* body 动画已在上面的body样式中定义 */

/* 选择文本样式 */
::selection {
    background: var(--gradient-primary);
    color: var(--white);
    text-shadow: none;
}

::-moz-selection {
    background: var(--gradient-primary);
    color: var(--white);
    text-shadow: none;
}

/* 加载动画 */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(74,144,226,0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 页面焦点指示器 */
*:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(74,144,226,0.3);
    border-radius: var(--border-radius);
}

/* 通用容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
    box-sizing: border-box;
}

/* 通用按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border: none;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 16px;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-shimmer);
    transition: left 0.8s ease-out;
    z-index: -1;
}

.btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glow);
    opacity: 0;
    transition: var(--transition);
    z-index: -2;
    border-radius: inherit;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover::after {
    opacity: 1;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.7;
    }
    50% {
        transform: scale(1.05);
        opacity: 1;
    }
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
}

.btn-secondary {
    background: rgba(255,255,255,0.1);
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* 区段样式 */
.section {
    padding: 100px 0;
    position: relative;
}

.section:nth-child(even) {
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(10px);
}

.section:nth-child(odd) {
    background: rgba(255,255,255,0.4);
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><circle fill="%23ffffff" fill-opacity="0.1" cx="30" cy="30" r="2"/></g></svg>'),
        radial-gradient(circle at 20% 20%, rgba(74,144,226,0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(231,76,60,0.05) 0%, transparent 50%),
        linear-gradient(135deg, rgba(255,255,255,0.02) 0%, rgba(74,144,226,0.02) 100%);
    pointer-events: none;
    animation: backgroundShift 15s ease-in-out infinite;
}

@keyframes backgroundShift {
    0%, 100% {
        opacity: 1;
        transform: translateX(0);
    }
    33% {
        opacity: 0.8;
        transform: translateX(2px);
    }
    66% {
        opacity: 1;
        transform: translateX(-2px);
    }
}

.section-title {
    text-align: center;
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--secondary-color);
    margin: 0 auto 20px auto;
    position: relative;
    letter-spacing: -0.5px;
    line-height: 1.2;
    width: 100%;
    max-width: 1200px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80px;
}

.section-title::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(74,144,226,0.5);
    animation: titleLineGlow 2s ease-in-out infinite;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(231,76,60,0.5);
    animation: titleLineGlow 2s ease-in-out infinite 0.5s;
}

@keyframes titleLineGlow {
    0%, 100% {
        box-shadow: 0 0 10px rgba(74,144,226,0.5);
        transform: translateX(-50%) scaleX(1);
    }
    50% {
        box-shadow: 0 0 20px rgba(74,144,226,0.8);
        transform: translateX(-50%) scaleX(1.1);
    }
}

/* 区段副标题 */
.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--medium-gray);
    margin: 0 auto 60px auto;
    max-width: 600px;
    line-height: 1.7;
    font-weight: 400;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
}

/* 导航栏样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid rgba(255,255,255,0.2);
    transition: var(--transition);
}

.header::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.header:hover::before {
    transform: scaleX(1);
}

.navbar {
    padding: 15px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

/* Logo占位符样式 */
.logo-placeholder {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), #357abd);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 24px;
    transition: var(--transition);
}

.logo-placeholder:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    letter-spacing: 0.3px;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    border-radius: var(--border-radius);
    opacity: 0;
    transform: scale(0.8);
    transition: var(--transition);
    z-index: -1;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--gradient-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.nav-link:hover::before {
    opacity: 0.1;
    transform: scale(1);
}

.nav-link:hover::after {
    width: 80%;
}

.nav-link:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
    text-shadow: 0 0 10px rgba(74,144,226,0.5);
    animation: linkGlow 1.5s ease-in-out infinite;
}

@keyframes linkGlow {
    0%, 100% {
        text-shadow: 0 0 10px rgba(74,144,226,0.5);
    }
    50% {
        text-shadow: 
            0 0 10px rgba(74,144,226,0.8),
            0 0 20px rgba(74,144,226,0.4),
            0 0 30px rgba(74,144,226,0.2);
    }
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--dark-gray);
    margin: 3px 0;
    transition: var(--transition);
}

/* 英雄区域样式 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-hero);
    color: var(--white);
    padding-top: 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
    animation: gradientShift 8s ease-in-out infinite;
}

/* 添加浮动粒子效果 */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, rgba(255,255,255,0.4) 0%, transparent 100%),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.3) 0%, transparent 100%),
        radial-gradient(1px 1px at 90px 40px, rgba(255,255,255,0.5) 0%, transparent 100%),
        radial-gradient(1px 1px at 130px 80px, rgba(255,255,255,0.4) 0%, transparent 100%),
        radial-gradient(2px 2px at 160px 30px, rgba(255,255,255,0.3) 0%, transparent 100%);
    background-repeat: repeat;
    background-size: 200px 100px;
    animation: float 20s linear infinite;
    pointer-events: none;
}

@keyframes float {
    0% {
        transform: translateY(0px) translateX(0px);
        opacity: 0.8;
    }
    33% {
        transform: translateY(-10px) translateX(5px);
        opacity: 1;
    }
    66% {
        transform: translateY(-5px) translateX(-5px);
        opacity: 0.8;
    }
    100% {
        transform: translateY(0px) translateX(0px);
        opacity: 0.8;
    }
}

@keyframes gradientShift {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

/* 移除了重复的 .hero::after，已在上面重新定义 */

.hero .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    max-width: 900px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    border-radius: var(--border-radius-xl);
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: var(--shadow-xl);
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease-out, textShimmer 3s ease-in-out infinite;
    text-align: center;
    letter-spacing: -1px;
    line-height: 1.1;
    background: linear-gradient(
        135deg, 
        #ffffff 0%, 
        #f0f8ff 25%, 
        #ffffff 50%, 
        #e6f3ff 75%, 
        #ffffff 100%
    );
    background-size: 200% 200%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 30px rgba(255,255,255,0.5);
    position: relative;
}

.hero-title::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 100%);
    border-radius: var(--border-radius);
    opacity: 0;
    animation: titleGlow 4s ease-in-out infinite;
    z-index: -1;
}

@keyframes textShimmer {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

@keyframes titleGlow {
    0%, 100% {
        opacity: 0;
        transform: scale(1);
    }
    50% {
        opacity: 0.3;
        transform: scale(1.02);
    }
}

.hero-subtitle {
    font-size: 1.75rem;
    margin-bottom: 20px;
    opacity: 0.95;
    animation: fadeInUp 1s ease-out 0.2s both;
    text-align: center;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.hero-description {
    font-size: 1.25rem;
    margin-bottom: 40px;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.4s both;
    text-align: center;
    max-width: 700px;
    font-weight: 400;
    line-height: 1.7;
}



.hero-buttons {
    display: flex;
    gap: 20px;
    animation: fadeInUp 1s ease-out 0.6s both;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
}

/* 图片占位符样式 */
.image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
    transition: var(--transition);
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}

.image-placeholder i {
    font-size: 3rem;
    margin-bottom: 10px;
    opacity: 0.9;
}

.image-placeholder span {
    font-size: 1.1rem;
    font-weight: 500;
    opacity: 0.8;
}

/* 英雄区域样式优化 - 图片已移除 */

/* 图片加载状态 */
.campus-main-image,
.leader-image,
.faculty-image,
.alumni-image,
.student-image,
.international-student-image,
.life-main-image,
.campus-overview-image,
.research-lab-image,
.academic-resources-image,
.news-article-image,
.international-partnership-image,
.campus-map-image {
    background-color: var(--light-gray);
    background-image: linear-gradient(45deg, transparent 35%, rgba(255,255,255,0.5) 50%, transparent 65%);
    background-size: 200% 100%;
    animation: loading 2s infinite;
}

.campus-main-image:not([src]),
.leader-image:not([src]),
.faculty-image:not([src]),
.alumni-image:not([src]),
.student-image:not([src]),
.international-student-image:not([src]),
.life-main-image:not([src]),
.campus-overview-image:not([src]),
.research-lab-image:not([src]),
.academic-resources-image:not([src]),
.news-article-image:not([src]),
.international-partnership-image:not([src]),
.campus-map-image:not([src]) {
    background: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--medium-gray);
    font-size: 14px;
}

.campus-main-image:not([src])::before,
.leader-image:not([src])::before,
.faculty-image:not([src])::before,
.alumni-image:not([src])::before,
.student-image:not([src])::before,
.international-student-image:not([src])::before,
.life-main-image:not([src])::before,
.campus-overview-image:not([src])::before,
.research-lab-image:not([src])::before,
.academic-resources-image:not([src])::before,
.news-article-image:not([src])::before,
.international-partnership-image:not([src])::before,
.campus-map-image:not([src])::before {
    content: "Loading...";
}

/* 图片加载动画 */
@keyframes loading {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* 图片错误处理样式 */
.fallback-image {
    border: 2px dashed var(--medium-gray) !important;
    background-color: var(--light-gray) !important;
    position: relative;
}

.fallback-image::after {
    content: "Image not available";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--medium-gray);
    font-size: 12px;
    text-align: center;
    background: rgba(255, 255, 255, 0.9);
    padding: 5px 10px;
    border-radius: 4px;
    pointer-events: none;
}

/* 图片加载完成后的样式 */
.campus-main-image.loaded,
.leader-image.loaded,
.faculty-image.loaded,
.alumni-image.loaded,
.student-image.loaded,
.international-student-image.loaded,
.life-main-image.loaded,
.campus-overview-image.loaded,
.research-lab-image.loaded,
.academic-resources-image.loaded,
.news-article-image.loaded,
.international-partnership-image.loaded,
.campus-map-image.loaded {
    animation: none;
    background: none;
}

/* 图片渐入效果 */
img {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

img:not(.loaded) {
    opacity: 0.7;
}

img.loaded {
    opacity: 1;
}

/* 图片悬停效果增强 */
.leader-image:hover,
.faculty-image:hover,
.alumni-image:hover,
.student-image:hover,
.international-student-image:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* 新增图片悬停效果 */
.campus-overview-image:hover,
.research-lab-image:hover,
.academic-resources-image:hover,
.news-article-image:hover,
.international-partnership-image:hover {
    transform: scale(1.05);
}

.life-main-image:hover {
    transform: scale(1.02);
}

/* 响应式图片优化 */
@media (max-width: 768px) {
    .campus-main-image {
        height: 300px;
        max-width: 100%;
    }
    
    .life-main-image {
        height: 200px;
    }
    
    .card-image {
        height: 150px;
    }
    
    .research-image,
    .academic-image {
        height: 120px;
    }
    
    .news-image {
        height: 120px;
    }
    
    .international-image {
        height: 120px;
    }
    
    .leader-image,
    .faculty-image,
    .alumni-image,
    .student-image,
    .international-student-image {
        width: 50px;
        height: 50px;
    }
}

/* 图片加载失败时的网络状态指示 */
.offline-indicator {
    position: fixed;
    top: 80px;
    right: 20px;
    background: var(--warning-color);
    color: var(--white);
    padding: 10px 15px;
    border-radius: var(--border-radius);
    font-size: 14px;
    z-index: 1001;
    transform: translateX(300px);
    transition: transform 0.3s ease;
}

.offline-indicator.show {
    transform: translateX(0);
}

/* 原校园覆盖层样式和统计数据已完全移除 */

/* 学校概览样式 */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    justify-content: center;
    align-items: stretch;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.overview-card {
    background: rgba(255,255,255,0.9);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-slow);
    border: 1px solid rgba(255,255,255,0.2);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
    backdrop-filter: blur(20px);
    position: relative;
}

.overview-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.overview-card:hover::before {
    transform: scaleX(1);
}

.overview-card:hover {
    transform: translateY(-10px) rotateX(5deg);
    box-shadow: 
        var(--shadow-xl),
        0 0 50px rgba(74,144,226,0.3),
        inset 0 1px 0 rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.95);
    border-color: rgba(74,144,226,0.3);
}

.overview-card {
    /* ... existing styles ... */
    transform-style: preserve-3d;
    perspective: 1000px;
}

/* 卡片图片样式 */
.card-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
}

.card-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-overlay);
    opacity: 0;
    transition: var(--transition);
}

.overview-card:hover .card-image::after {
    opacity: 1;
}

.campus-overview-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.overview-card:hover .campus-overview-image {
    transform: scale(1.1);
}

.card-content {
    padding: 35px 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.overview-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    box-shadow: var(--shadow-lg);
    position: relative;
    transition: var(--transition);
}

.card-icon::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: var(--gradient-primary);
    border-radius: 50%;
    opacity: 0.3;
    z-index: -1;
    transform: scale(0);
    transition: var(--transition);
}

.overview-card:hover .card-icon::before {
    transform: scale(1);
}

.overview-card:hover .card-icon {
    transform: translateY(-5px) rotate(10deg) scale(1.1);
    box-shadow: 
        var(--shadow-xl),
        0 0 30px rgba(74,144,226,0.6),
        inset 0 2px 4px rgba(255,255,255,0.3);
    animation: iconBounce 0.6s ease-out;
}

@keyframes iconBounce {
    0% {
        transform: translateY(-5px) rotate(10deg) scale(1.1);
    }
    50% {
        transform: translateY(-8px) rotate(15deg) scale(1.15);
    }
    100% {
        transform: translateY(-5px) rotate(10deg) scale(1.1);
    }
}

.card-icon i {
    font-size: 32px;
    color: var(--white);
    transition: var(--transition);
}

.overview-card:hover .card-icon i {
    transform: scale(1.1);
}

.overview-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 20px;
    line-height: 1.3;
    letter-spacing: -0.5px;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.overview-card p {
    color: var(--medium-gray);
    line-height: 1.8;
    font-size: 1rem;
    font-weight: 400;
}

/* 领导团队样式 */
.leadership-section {
    width: 100%;
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.leader-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--light-gray);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.leader-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.leader-photo {
    flex-shrink: 0;
}

.leader-photo img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow);
}

.leader-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 5px;
}

.leader-info .title {
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 3px;
}

.leader-info .credentials {
    font-size: 0.8rem;
    color: var(--medium-gray);
}

/* 招生信息样式 */
.admissions {
    background: var(--light-gray);
}

.admissions-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    max-width: 600px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}

.tab-button {
    background: none;
    border: none;
    padding: 15px 30px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    color: var(--medium-gray);
    transition: var(--transition);
}

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease-in;
}

.admission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    justify-content: center;
    align-items: stretch;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.admission-card {
    background: var(--white);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.admission-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.admission-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 15px;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.admission-card ul {
    list-style: none;
    text-align: left;
    width: 100%;
}

.admission-card li {
    padding: 8px 0;
    color: var(--medium-gray);
    border-bottom: 1px solid #eee;
    text-align: left;
}

.admission-card li:last-child {
    border-bottom: none;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 1000;
}

.back-to-top:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.back-to-top.show {
    display: flex;
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(255,255,255,0.95);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
        padding: 30px 0;
        border-bottom: 1px solid rgba(255,255,255,0.2);
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hero {
        padding-top: 90px;
        padding-bottom: 50px;
    }

    .hero .container {
        max-width: 100%;
        padding: 0 20px;
    }

    .hero-content {
        padding: 30px 20px;
    }

    .hero-title {
        font-size: 2.75rem;
        margin-bottom: 15px;
    }

    .hero-subtitle {
        font-size: 1.4rem;
        margin-bottom: 15px;
    }

    .hero-description {
        font-size: 1.1rem;
        margin-bottom: 30px;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 2.25rem;
        margin-bottom: 15px;
        min-height: 60px;
        padding: 0 10px;
    }

    .section-subtitle {
        font-size: 1rem;
        margin-bottom: 40px;
        padding: 0 10px;
        min-height: 40px;
    }

    .overview-card h3,
    .admission-card h3,
    .card-header h3,
    .life-content h3,
    .alumni-card h4,
    .news-category h3,
    .international-card h3,
    .contact-info h3,
    .contact-form h3 {
        font-size: 1.1rem;
        min-height: 40px;
        padding: 0 10px;
    }

    .overview-grid,
    .admission-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .card-content {
        padding: 25px 20px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 15px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }

    .hero-buttons .btn {
        width: 200px;
    }
}

/* 教学与科研样式 */
.academics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    justify-content: center;
    align-items: stretch;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.academic-card {
    background: rgba(255,255,255,0.95);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition-slow);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.3);
    position: relative;
}

.academic-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-overlay);
    opacity: 0;
    transition: var(--transition);
    z-index: 0;
}

.academic-card:hover::before {
    opacity: 0.05;
}

.academic-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    background: rgba(255,255,255,0.98);
}

.card-header {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 25px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.card-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

.card-header i {
    font-size: 24px;
}

.card-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.card-content {
    padding: 25px;
}

/* 研究图片样式 */
.research-image {
    width: 100%;
    height: 150px;
    overflow: hidden;
    margin-bottom: 20px;
    border-radius: var(--border-radius);
}

.research-lab-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.research-lab-image:hover {
    transform: scale(1.02);
}

/* 学术资源图片样式 */
.academic-image {
    width: 100%;
    height: 150px;
    overflow: hidden;
    margin-bottom: 20px;
    border-radius: var(--border-radius);
}

.academic-resources-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.academic-resources-image:hover {
    transform: scale(1.02);
}

.colleges-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.college-item {
    padding: 15px;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.college-item strong {
    color: var(--secondary-color);
    display: block;
    margin-bottom: 5px;
}

/* 特色教师展示 */
.featured-faculty {
    margin-bottom: 25px;
}

.faculty-member {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--light-gray);
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    transition: var(--transition);
}

.faculty-member:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

.faculty-member img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow);
}

.faculty-details h5 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 3px;
}

.faculty-details p {
    font-size: 0.9rem;
    color: var(--medium-gray);
    margin-bottom: 5px;
}

.faculty-details .achievement {
    font-size: 0.8rem;
    color: var(--primary-color);
    background: rgba(74, 144, 226, 0.1);
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 500;
}

.faculty-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 15px;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.research-list,
.resource-list {
    list-style: none;
}

.research-list li,
.resource-list li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    color: var(--medium-gray);
}

.research-list li:last-child,
.resource-list li:last-child {
    border-bottom: none;
}

/* 学生生活样式 */
.life-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    justify-content: center;
    align-items: stretch;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 10px;
}

.life-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.life-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.life-image {
    height: 200px;
    overflow: hidden;
    position: relative;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

/* 学生生活图片占位符 */
.life-image .image-placeholder {
    height: 200px;
    border-radius: 0;
}

.housing {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.clubs {
    background: linear-gradient(135deg, #2ecc71, #27ae60);
}

.dining {
    background: linear-gradient(135deg, #3498db, #2980b9);
}

.wellness {
    background: linear-gradient(135deg, #9b59b6, #8e44ad);
}

.life-card:hover .image-placeholder {
    transform: scale(1.05);
}

.life-card:hover .image-overlay {
    opacity: 1;
}

.life-content {
    padding: 25px;
    text-align: center;
    width: 100%;
}

.life-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 15px;
    text-align: center;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.life-content p {
    color: var(--medium-gray);
    margin-bottom: 15px;
    line-height: 1.7;
    text-align: center;
}

.life-content ul {
    list-style: none;
    text-align: left;
}

.life-content li {
    padding: 5px 0;
    color: var(--medium-gray);
    position: relative;
    padding-left: 20px;
}

.life-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* 学生活动展示 */
.student-activities {
    margin-bottom: 20px;
}

.activity-highlight {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    box-shadow: var(--shadow);
}

.activity-photo img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
}

.activity-info p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--secondary-color);
}

.activity-info small {
    color: var(--medium-gray);
    font-style: italic;
}

/* 真实学生生活图片 */
.life-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.life-card:hover .life-image img {
    transform: scale(1.05);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.2), rgba(0,0,0,0.8));
    display: flex;
    align-items: flex-end;
    padding: 20px;
    color: var(--white);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    opacity: 0;
    transition: var(--transition);
    z-index: 2;
}

.image-overlay h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
}

/* 校友网络样式 */
.alumni {
    background: var(--light-gray);
}

.alumni-intro {
    text-align: center;
    margin-bottom: 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.alumni-intro h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.alumni-intro p {
    color: var(--medium-gray);
    line-height: 1.7;
    font-size: 1.1rem;
}

/* 校友展示 */
.alumni-showcase {
    margin-bottom: 20px;
}

.alumni-profile {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    transition: var(--transition);
    border-left: 4px solid var(--accent-color);
}

.alumni-profile:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.alumni-photo {
    flex-shrink: 0;
}

.alumni-photo img {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow);
    border: 3px solid var(--white);
}

.alumni-details h5 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 5px;
}

.alumni-details .position {
    font-size: 0.9rem;
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 3px;
}

.alumni-details .field {
    font-size: 0.85rem;
    color: var(--medium-gray);
    margin-bottom: 5px;
}

.alumni-details .year {
    font-size: 0.8rem;
    color: var(--primary-color);
    background: rgba(74, 144, 226, 0.1);
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 500;
}

.alumni-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    justify-content: center;
    align-items: stretch;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.alumni-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.alumni-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.alumni-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-color), #c0392b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.alumni-icon i {
    font-size: 32px;
    color: var(--white);
}

.alumni-card h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 20px;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.alumni-item {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    text-align: left;
}

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

.alumni-card ul {
    list-style: none;
    text-align: left;
}

.alumni-card li {
    padding: 8px 0;
    color: var(--medium-gray);
    border-bottom: 1px solid #eee;
}

.alumni-card li:last-child {
    border-bottom: none;
}

/* 新闻公告样式 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    justify-content: center;
    align-items: start;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 10px;
}

.news-category h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 3px solid var(--primary-color);
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.news-item {
    background: rgba(255,255,255,0.9);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 25px;
    transition: var(--transition-slow);
    overflow: hidden;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.2);
    position: relative;
}

.news-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: var(--transition);
    transform-origin: top;
}

.news-item:hover::before {
    transform: scaleY(1);
}

.news-item:hover {
    transform: translateX(8px) translateY(-3px);
    box-shadow: 
        var(--shadow-xl),
        0 0 30px rgba(74,144,226,0.2),
        -5px 0 20px rgba(74,144,226,0.1);
    background: rgba(255,255,255,0.98);
}

.news-item {
    /* ... existing styles ... */
    position: relative;
    overflow: hidden;
}

.news-item::after {
    content: '';
    position: absolute;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-shimmer);
    transform: skewX(-25deg);
    transition: right 0.6s ease-out;
}

.news-item:hover::after {
    right: 100%;
}

/* 新闻图片样式 */
.news-image {
    width: 100%;
    height: 160px;
    overflow: hidden;
    position: relative;
}

.news-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-overlay);
    opacity: 0;
    transition: var(--transition);
}

.news-item:hover .news-image::after {
    opacity: 0.3;
}

.news-article-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.news-item:hover .news-article-image {
    transform: scale(1.1);
}

.news-item .news-date,
.news-item h4,
.news-item p {
    padding: 0 25px;
}

.news-item .news-date {
    padding-top: 25px;
}

.news-item p {
    padding-bottom: 25px;
}

.news-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg);
}

.news-date {
    font-size: 0.875rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-block;
    padding: 6px 12px;
    background: rgba(74, 144, 226, 0.1);
    border-radius: 20px;
    border: 1px solid rgba(74, 144, 226, 0.2);
}

.news-item h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 15px;
    line-height: 1.4;
    letter-spacing: -0.3px;
    transition: var(--transition);
}

.news-item:hover h4 {
    color: var(--primary-color);
}

.news-item p {
    color: var(--medium-gray);
    line-height: 1.7;
    font-size: 1rem;
    font-weight: 400;
    margin-bottom: 0;
}

/* 国际交流样式 */
.international {
    background: var(--light-gray);
}

.international-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    justify-content: center;
    align-items: stretch;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.international-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.international-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* 国际交流图片样式 */
.international-image {
    width: 100%;
    height: 150px;
    overflow: hidden;
    margin-bottom: 20px;
}

.international-partnership-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.international-partnership-image:hover {
    transform: scale(1.02);
}

.international-card .card-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--success-color), #27ae60);
    margin-bottom: 20px;
}

.international-card .card-icon i {
    font-size: 28px;
}

.international-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 20px;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

/* 国际学生见证 */
.international-students {
    margin-bottom: 25px;
}

.student-testimonials {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.testimonial {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--success-color);
    transition: var(--transition);
}

.testimonial:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.student-photo {
    flex-shrink: 0;
}

.student-photo img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow);
    border: 2px solid var(--success-color);
}

.testimonial-content p {
    font-size: 0.95rem;
    color: var(--secondary-color);
    font-style: italic;
    margin-bottom: 8px;
    line-height: 1.5;
}

.testimonial-content cite {
    font-size: 0.85rem;
    color: var(--success-color);
    font-weight: 500;
    font-style: normal;
}

.partners-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.partner-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.partner-item strong {
    color: var(--secondary-color);
}

.partner-item span {
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.stat {
    text-align: center;
    padding: 15px;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.stat .number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--success-color);
}

.stat .label {
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.conference-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.conference-item {
    padding: 15px;
    background: var(--light-gray);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--warning-color);
}

.conference-item h4 {
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.conference-item p {
    color: var(--medium-gray);
    font-size: 0.9rem;
    margin: 2px 0;
}

/* 联系我们样式 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    justify-content: center;
    align-items: stretch;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info h3,
.contact-form h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 25px;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 20px;
    padding: 15px;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.contact-item i {
    font-size: 20px;
    color: var(--primary-color);
    margin-top: 5px;
}

.contact-item strong {
    display: block;
    color: var(--secondary-color);
    margin-bottom: 5px;
}

.contact-item p {
    color: var(--medium-gray);
    margin: 0;
}

.contact-form {
    background: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #eee;
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.map-container {
    background: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
}

/* 校园地图样式 */
.campus-map {
    height: 250px;
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.campus-map-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.map-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(74, 144, 226, 0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    opacity: 0;
    transition: var(--transition);
}

.campus-map:hover .map-overlay {
    opacity: 1;
}

.campus-map:hover .campus-map-image {
    transform: scale(1.1);
}

.map-overlay i {
    font-size: 48px;
    margin-bottom: 15px;
    color: var(--white);
}

/* 页脚样式 */
.footer {
    background: var(--gradient-secondary);
    color: var(--white);
    padding: 80px 0 30px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(52, 73, 94, 0.8) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(44, 62, 80, 0.8) 0%, transparent 50%);
    z-index: 0;
}

.footer .container {
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
    justify-content: center;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 15px;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 10px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--gradient-primary);
    transform: translateY(-2px) rotate(360deg);
    box-shadow: 
        0 10px 25px rgba(74,144,226,0.3),
        0 0 20px rgba(74,144,226,0.4);
    animation: socialBounce 0.6s ease-out;
}

@keyframes socialBounce {
    0% {
        transform: translateY(-2px) rotate(0deg) scale(1);
    }
    50% {
        transform: translateY(-5px) rotate(180deg) scale(1.1);
    }
    100% {
        transform: translateY(-2px) rotate(360deg) scale(1);
    }
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

/* 更多响应式设计 */
@media (max-width: 1024px) {
    .life-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 25px;
    }
    
    .news-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 25px;
    }
    
    .faculty-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .academics-grid,
    .alumni-grid,
    .international-grid,
    .news-grid,
    .contact-grid,
    .life-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 5px;
    }
    
    .admissions-tabs {
        flex-direction: column;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .image-placeholder i {
        font-size: 2rem;
    }

    .image-placeholder span {
        font-size: 1rem;
    }

    /* 移动端人物照片优化 */
    .leadership-grid {
        grid-template-columns: 1fr;
    }

    .leader-card {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .alumni-profile {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .faculty-member {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .testimonial {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .activity-highlight {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }


}

/* 新闻列表样式 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* 修复news-category的布局 */
.news-category {
    width: 100%;
    min-height: fit-content;
}

/* Student Life 修复样式 */
.life-card {
    width: 100%;
    min-height: 400px;
    display: flex;
    flex-direction: column;
}

.life-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* 确保图片正确显示 */
.life-main-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}