/* 全局重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    background-color: #0a0a0a;
    color: #ffffff;
    overflow-x: hidden;
    line-height: 1.6;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo div {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: #667eea;
}

.btn {
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    border-color: #667eea;
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* 菜单切换按钮（移动端） */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: #ffffff;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 菜单激活状态 */
.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
    background: #667eea;
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-20px);
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
    background: #667eea;
}

/* 背景轮播样式 */
.background-slider {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

/* 轮播排样式 */
.slider-row {
    display: flex;
    width: 100%;
    height: 20vh;
    overflow: visible;
    position: relative;
    transform-style: preserve-3d;
    backface-visibility: hidden;
    will-change: transform;
    animation-timing-function: linear;
    animation-fill-mode: both;
    animation-iteration-count: infinite;
}

/* 左向滚动动画 */
@keyframes slideLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* 右向滚动动画 */
@keyframes slideRight {
    0% {
        transform: translateX(-50%);
    }
    100% {
        transform: translateX(0);
    }
}

/* 第一排：向左滚动 */
.slider-row-1 {
    animation: slideLeft 30s linear infinite;
}

/* 第二排：向右滚动 */
.slider-row-2 {
    animation: slideRight 25s linear infinite;
}

/* 第三排：向左滚动 */
.slider-row-3 {
    animation: slideLeft 35s linear infinite;
}

/* 第四排：向右滚动 */
.slider-row-4 {
    animation: slideRight 28s linear infinite;
}

/* 第五排：向左滚动 */
.slider-row-5 {
    animation: slideLeft 32s linear infinite;
}

/* 幻灯片样式 */
.slide {
    flex: 0 0 auto;
    width: 300px; /* 调整图片宽度，使其更适合背景展示 */
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: brightness(0.5) contrast(1.1) saturate(0.9) blur(2px);
    margin-right: 0;
    transform: scale(1.2); /* 增加缩放比例，确保图片之间没有间隙 */
    transition: all 0.3s ease;
    will-change: transform;
    backface-visibility: hidden;
}

/* 悬停效果 */
.slider-row:hover {
    animation-play-state: paused;
}

.slider-row:hover .slide {
    filter: brightness(0.5) contrast(1.3) saturate(1);
    transform: scale(1.05);
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(10, 10, 10, 0.2) 0%, rgba(10, 10, 10, 0.6) 100%);
    backdrop-filter: blur(2px);
}

/* 主要内容区域 */
.main-content {
    position: relative;
    z-index: 1;
}

.hero-section {
    text-align: center;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 20px;
    position: relative;
    background: rgba(10, 10, 10, 0.3);
    backdrop-filter: blur(5px);
    animation: fadeInUp 1s ease-out;
}

/* 优化首屏加载性能 */
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    z-index: -1;
    opacity: 0.7;
}

/* 轮播容器增强 */
.slider-container {
    position: relative;
    margin-bottom: 40px;
    min-height: auto;
    background: 
        radial-gradient(ellipse at top left, rgba(102, 126, 234, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(118, 75, 162, 0.15) 0%, transparent 50%),
        linear-gradient(135deg, rgba(10, 10, 10, 0.8) 0%, rgba(20, 20, 20, 0.8) 100%);
    border-radius: 25px;
    box-shadow: 
        0 20px 60px rgba(102, 126, 234, 0.15),
        0 10px 30px rgba(118, 75, 162, 0.1),
        inset 0 0 200px rgba(102, 126, 234, 0.05),
        inset 0 1px 0 rgba(102, 126, 234, 0.1);
    overflow: hidden;
    border: 1px solid rgba(102, 126, 234, 0.15);
    backdrop-filter: blur(10px);
    max-width: 2000px;
    margin-left: auto;
    margin-right: auto;
}

.slider-item {
    display: none;
    padding: 20px 40px;
    min-height: auto;
}

.slider-item.active {
    display: block;
    animation: fadeInUp 0.8s ease-out;
}

/* 轮播项进入动画 */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 文本和图片的分层动画 */
.slider-item.active .col-md-6:first-child {
    animation: slideInLeft 0.8s ease-out 0.2s both;
}

.slider-item.active .col-md-6:last-child {
    animation: slideInRight 0.8s ease-out 0.4s both;
}

/* 文本内容的逐行动画 */
.slider-item.active .caption-cont h2 {
    animation: fadeInUp 0.8s ease-out 0.5s both;
}

.slider-item.active .caption-cont p {
    animation: fadeInUp 0.8s ease-out 0.7s both;
}

/* 按钮的精致悬停动画 */
.btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: all 0.5s ease;
}

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

/* 按钮脉冲效果 */
.btn-primary::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: all 0.6s ease;
}

.btn-primary:hover::after {
    width: 300px;
    height: 300px;
}

/* 响应式轮播容器 */
@media (max-width: 768px) {
    .slider-container {
        min-height: auto;
        border-radius: 15px;
    }
    
    .slider-item {
        padding: 40px 20px;
        min-height: auto;
    }
}

/* 上下布局样式 - 添加更高特异性 */
.hero-section .slider-container .slider-item .row {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    min-height: 100%;
    margin: 0;
    position: relative;
    width: 100%;
}

/* 文本列 - 100%宽度 - 添加更高特异性 */
.hero-section .slider-container .slider-item .col-md-6:first-child {
    flex: 0 0 100% !important;
    max-width: 100% !important;
    padding: 40px 50px 20px 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: auto;
}

/* 图片列 - 100%宽度 - 添加更高特异性 */
.hero-section .slider-container .slider-item .col-md-6:last-child {
    flex: 0 0 100% !important;
    max-width: 100% !important;
    padding: 20px 50px 40px 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: auto;
    background: transparent !important;
}

/* 响应式布局调整 - 添加更高特异性 */
@media (max-width: 992px) {
    /* 中等屏幕上使用100%比例的上下布局 */
    .hero-section .slider-container .slider-item .col-md-6:first-child,
    .hero-section .slider-container .slider-item .col-md-6:last-child {
        flex: 0 0 100% !important;
        max-width: 100% !important;
        padding: 30px 40px 15px 40px;
        min-height: 200px;
    }
    
    .hero-section .slider-container .slider-item .col-md-6:last-child {
        padding: 15px 40px 30px 40px;
        min-height: 300px;
    }
}

@media (max-width: 768px) {
    /* 小屏幕上单列布局 */
    .hero-section .slider-container .slider-item .col-md-6:first-child,
    .hero-section .slider-container .slider-item .col-md-6:last-child {
        flex: 0 0 100% !important;
        max-width: 100% !important;
        padding: 0 20px;
        min-height: 350px;
        margin-bottom: 30px;
        background: transparent !important;
    }
    
    /* 在移动端隐藏图片列 */
    .hero-section .slider-container .slider-item .col-md-6:last-child {
        display: none;
    }
    
    /* 调整文本列在移动端的样式 */
    .hero-section .slider-container .slider-item .col-md-6:first-child {
        padding: 0 15px;
        min-height: auto;
    }
}

/* 图片容器增强 */
.caption-img {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    perspective: 1200px;
    transform-style: preserve-3d;
    display: flex;
    align-items: center;
    justify-content: center;
}

.caption-img img {
    width: 100%;
    height: auto;
    max-height: 380px;
    object-fit: contain;
    border-radius: 6px;
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    filter: contrast(1.15) saturate(1.2) brightness(0.95) hue-rotate(-2deg);
    box-shadow: 
        0 25px 70px rgba(0, 0, 0, 0.7),
        0 0 40px rgba(102, 126, 234, 0.25),
        inset 0 0 15px rgba(0, 0, 0, 0.4);
    z-index: 3;
    position: relative;
}

/* 游戏风格外边框 */
.caption-img::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px solid rgba(102, 126, 234, 0.4);
    border-radius: 12px;
    box-shadow: 
        0 0 60px rgba(102, 126, 234, 0.4),
        inset 0 0 30px rgba(102, 126, 234, 0.15),
        0 0 200px rgba(102, 126, 234, 0.1);
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background: rgba(10, 10, 10, 0.4);
    backdrop-filter: blur(15px);
    z-index: 1;
    background-image: 
        linear-gradient(45deg, rgba(102, 126, 234, 0.1) 0%, transparent 100%),
        linear-gradient(-45deg, rgba(118, 75, 162, 0.1) 0%, transparent 100%);
}

/* 游戏风格内边框 */
.caption-img::after {
    content: '';
    position: absolute;
    top: 25px;
    left: 25px;
    right: 25px;
    bottom: 25px;
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 8px;
    box-shadow: 
        inset 0 0 40px rgba(102, 126, 234, 0.15),
        0 0 10px rgba(102, 126, 234, 0.2);
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 2;
    pointer-events: none;
}

/* 图片悬停动画 */
.caption-img:hover img {
    transform: scale(1.15) rotateX(6deg) rotateY(-6deg) translateZ(20px);
    box-shadow: 
        0 40px 100px rgba(0, 0, 0, 0.9),
        0 0 80px rgba(102, 126, 234, 0.5),
        0 0 20px rgba(102, 126, 234, 0.8),
        inset 0 0 20px rgba(0, 0, 0, 0.5);
    filter: contrast(1.25) saturate(1.35) brightness(1.05) hue-rotate(0deg);
}

.caption-img:hover::before {
    border-color: rgba(102, 126, 234, 0.7);
    box-shadow: 
        0 0 100px rgba(102, 126, 234, 0.6),
        inset 0 0 50px rgba(102, 126, 234, 0.25),
        0 0 300px rgba(102, 126, 234, 0.15);
    transform: rotateX(6deg) rotateY(-6deg) translateZ(10px);
}

.caption-img:hover::after {
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 
        inset 0 0 60px rgba(102, 126, 234, 0.25),
        0 0 20px rgba(102, 126, 234, 0.3);
    transform: rotateX(6deg) rotateY(-6deg) translateZ(15px);
}

/* 响应式图片容器 */
@media (max-width: 768px) {
    .slider-item .col-md-6 {
        min-height: auto;
        padding: 0 10px;
        margin-bottom: 20px;
    }
    
    .caption-img {
        display: none;
    }
}



.hero-content {
    max-width: 100%;
    width: 100%;
    margin: 0 auto;
}

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

.subtitle {
    font-size: 1.2rem;
    font-weight: 500;
    color: #667eea;
    margin-bottom: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-align: center;
}

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

.mb-1 {
    margin-bottom: 0.5rem;
}

.title {
    font-family: 'Orbitron', sans-serif;
    font-size: 4.5rem;
    font-weight: 900;
    margin-bottom: 20px;
    line-height: 1.2;
    background: linear-gradient(135deg, #ffffff 0%, #667eea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(102, 126, 234, 0.3);
}

/* 轮播文本容器 */
.caption-cont {
    text-align: center;
    padding: 20px 40px;
    position: relative;
    z-index: 2;
    max-width: 100%;
}

/* 轮播标题样式 */
.slider-item h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 3.2rem;
    font-weight: 900;
    margin-bottom: 25px;
    line-height: 1.2;
    color: #ffffff;
    text-shadow: 0 0 30px rgba(102, 126, 234, 0.5), 0 2px 10px rgba(0, 0, 0, 0.5);
    letter-spacing: 2px;
    position: relative;
}

/* 轮播标题下划线 */
.slider-item h2::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.5);
}

/* 轮播描述文本 */
.slider-item .description {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    line-height: 1.8;
    background: transparent;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 10px rgba(102, 126, 234, 0.2);
    letter-spacing: 0.5px;
    position: relative;
    z-index: 2;
}

/* 轮播文本容器 */
.caption-cont {
    text-align: center;
    padding: 20px 40px;
    position: relative;
    z-index: 2;
    max-width: 100%;
}

/* 移动端文本优化 */
@media (max-width: 768px) {
    .slider-item h2 {
        font-size: 2.2rem;
        margin-bottom: 15px;
        line-height: 1.3;
    }
    
    .slider-item .description {
        font-size: 1.1rem;
        line-height: 1.6;
        margin-bottom: 25px;
    }
    
    .caption-cont {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .slider-item h2 {
        font-size: 1.8rem;
    }
    
    .slider-item .description {
        font-size: 1rem;
    }
}

/* 通用描述文本 */
.description {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

/* 特性预览 */
.features-preview {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    padding: 30px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    padding: 15px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-item:hover {
    transform: translateY(-5px);
    background: rgba(102, 126, 234, 0.1);
    border-color: rgba(102, 126, 234, 0.3);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 5px;
}

.feature-item span {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

/* 页脚样式 */
.footer {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 80px 0 40px 0;
    color: #6c757d;
    position: relative;
    z-index: 1;
}

/* 底部备案信息样式 */
.footer-record {
    margin: 20px 0;
}

.footer-link {
    color: #6c757d;
    text-decoration: none;
    margin: 0 15px;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: #667eea;
}

.footer-icon-record0 {
    margin-right: 5px;
}

.footer-icon-record2 {
    margin-right: 5px;
}

#cloud-product-text {
    color: #6c757d;
    font-size: 12px;
    margin-top: 20px;
    cursor: pointer;
    text-decoration: underline;
    transition: color 0.3s ease;
}

#cloud-product-text:hover {
    color: #667eea;
}

/* 为什么选择我们部分 */
.why-choose-us {
    padding: 80px 0;
    position: relative;
}

.why-choose-us::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff 0%, #667eea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 40px 30px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(102, 126, 234, 0.3);
    background: rgba(102, 126, 234, 0.05);
}

.feature-card-icon {
    font-size: 3.5rem;
    margin-bottom: 25px;
    display: block;
    text-align: center;
    transition: transform 0.3s ease;
}

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

.feature-card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    text-align: center;
    color: #ffffff;
}

.feature-card-description {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    text-align: center;
}

/* 我们的客户部分 */
.card-section {
    padding: 80px 0;
    position: relative;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.card-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
}

.card-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
}

/* 高校图片卡片样式 */
.university-card {
    background-color: #f0f0f0;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    padding: 15px;
    margin: 10px;
    transition: all 0.3s ease;
    height: 150px;
    width: auto;
    max-width: 300px;
}

.university-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    background-color: #e0e0e0;
}

/* 高校logo轮播样式 */
.owl-carousel .owl-item img {
    width: 220px;
    height: 110px;
    object-fit: contain;
    margin: 0 auto;
    filter: grayscale(100%);
    transition: filter 0.3s ease;
}

.owl-carousel .owl-item img:hover {
    filter: grayscale(0%);
}

/* 客户响应式设计 */
@media (max-width: 768px) {
    .university-card {
        height: 120px;
        width: 220px;
    }
    
    .owl-carousel .owl-item img {
        width: 180px;
        height: 90px;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background: rgba(10, 10, 10, 0.95);
        backdrop-filter: blur(10px);
        width: 100%;
        padding: 30px 0;
        transition: left 0.3s ease;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

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

    .menu-toggle {
        display: flex;
    }

    .title {
        font-size: 3rem;
    }

    .description {
        font-size: 1.1rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .features-preview {
        gap: 20px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    /* 为什么选择我们响应式 */
    .why-choose-us {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    /* 我们的客户响应式 */
    .our-clients {
        padding: 60px 0;
    }
    
    .client-logos {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 20px;
    }
    
    .client-logo {
        height: 80px;
    }
    
    .client-logo img {
        max-width: 75%;
        max-height: 75%;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 2.5rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .description {
        font-size: 1rem;
    }

    .btn-lg {
        padding: 14px 28px;
        font-size: 1rem;
    }
    
    /* 更小屏幕的响应式 */
    .section-title {
        font-size: 1.8rem;
    }
    
    .feature-card {
        padding: 25px 15px;
    }
    
    .feature-card-icon {
        font-size: 2.5rem;
    }
    
    .feature-card-title {
        font-size: 1.3rem;
    }
    
    .client-logos {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 15px;
    }
    
    .client-logo {
        height: 70px;
    }
    
    .client-logo img {
        max-width: 70%;
        max-height: 70%;
    }
}

/* 轮播样式 */
.slider-container {
    position: relative;
    margin-bottom: 40px;
    min-height: 550px;
    background: 
        radial-gradient(ellipse at top left, rgba(102, 126, 234, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(118, 75, 162, 0.15) 0%, transparent 50%),
        linear-gradient(135deg, rgba(10, 10, 10, 0.8) 0%, rgba(20, 20, 20, 0.8) 100%);
    border-radius: 25px;
    box-shadow: 
        0 20px 60px rgba(102, 126, 234, 0.15),
        0 10px 30px rgba(118, 75, 162, 0.1),
        inset 0 0 200px rgba(102, 126, 234, 0.05),
        inset 0 1px 0 rgba(102, 126, 234, 0.1);
    overflow: hidden;
    border: 1px solid rgba(102, 126, 234, 0.15);
    backdrop-filter: blur(10px);
    max-width: 1600px;
    margin-left: auto;
    margin-right: auto;
}

.slider-item {
    display: none;
    animation: fade 1.5s ease-in-out;
    position: relative;
    z-index: 1;
}

/* 轮播项内元素的顺序入场动画 */
.slider-item.active .caption-cont {
    animation: slideInLeft 1s ease-out 0.2s both;
}

.slider-item.active .caption-img {
    animation: slideInRight 1s ease-out 0.5s both;
}

.slider-item.active h2 {
    animation: slideInUp 1s ease-out 0.3s both;
}

.slider-item.active .description {
    animation: slideInUp 1s ease-out 0.6s both;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.slider-item .row {
    display: flex;
    align-items: stretch;
    min-height: 550px;
    position: relative;
}

/* 调整轮播项的列比例 */
.slider-item .col-md-6:first-child {
    flex: 0 0 55%;
    max-width: 55%;
    background: linear-gradient(90deg, rgba(10, 10, 10, 0.8) 0%, rgba(10, 10, 10, 0.2) 100%);
}

.slider-item .col-md-6:last-child {
    flex: 0 0 45%;
    max-width: 45%;
    background: linear-gradient(90deg, rgba(10, 10, 10, 0.2) 0%, rgba(10, 10, 10, 0.8) 100%);
}

@keyframes fade {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slider-item.active {
    display: block;
}

/* 确保轮播图片容器和图片样式正确 */
.caption-img {
    width: 100%;
    height: 100%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
    position: relative;
    perspective: 1200px;
}

/* 游戏风格外边框 */
.caption-img::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px solid rgba(102, 126, 234, 0.4);
    border-radius: 12px;
    box-shadow: 
        0 0 60px rgba(102, 126, 234, 0.4),
        inset 0 0 30px rgba(102, 126, 234, 0.15),
        0 0 200px rgba(102, 126, 234, 0.1);
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background: rgba(10, 10, 10, 0.4);
    backdrop-filter: blur(15px);
    z-index: 1;
    background-image: 
        linear-gradient(45deg, rgba(102, 126, 234, 0.1) 0%, transparent 100%),
        linear-gradient(-45deg, rgba(118, 75, 162, 0.1) 0%, transparent 100%);
}

/* 游戏风格内边框 */
.caption-img::after {
    content: '';
    position: absolute;
    top: 26px;
    left: 26px;
    right: 26px;
    bottom: 26px;
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 8px;
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 2;
    box-shadow: 
        inset 0 0 50px rgba(102, 126, 234, 0.05),
        0 0 20px rgba(102, 126, 234, 0.1);
}

/* 装饰性角落元素 */
.caption-img::before {
    background-position: 0 0, 100% 100%;
    background-size: 50% 50%;
    background-repeat: no-repeat;
}

.caption-img:hover::before {
    border-color: rgba(102, 126, 234, 0.8);
    box-shadow: 
        0 0 100px rgba(102, 126, 234, 0.6),
        inset 0 0 50px rgba(102, 126, 234, 0.25),
        0 0 300px rgba(102, 126, 234, 0.2),
        0 0 10px rgba(102, 126, 234, 0.8);
    transform: scale(1.05) rotateX(2deg) rotateY(-2deg);
}

.caption-img:hover::after {
    border-color: rgba(102, 126, 234, 0.6);
    transform: scale(0.97);
    box-shadow: 
        inset 0 0 80px rgba(102, 126, 234, 0.1),
        0 0 30px rgba(102, 126, 234, 0.2);
}

.caption-img img {
    width: 100%;
    height: auto;
    max-height: 380px;
    object-fit: contain;
    border-radius: 6px;
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    filter: contrast(1.15) saturate(1.2) brightness(0.95) hue-rotate(-2deg);
    box-shadow: 
        0 25px 70px rgba(0, 0, 0, 0.7),
        0 0 40px rgba(102, 126, 234, 0.25),
        inset 0 0 15px rgba(0, 0, 0, 0.4);
    z-index: 3;
    position: relative;
    transform-style: preserve-3d;
    transform: translateZ(0);
}

.caption-img:hover img {
    transform: scale(1.15) rotateX(6deg) rotateY(-6deg) translateZ(20px);
    box-shadow: 
        0 40px 100px rgba(0, 0, 0, 0.9),
        0 0 80px rgba(102, 126, 234, 0.5),
        0 0 20px rgba(102, 126, 234, 0.8),
        inset 0 0 20px rgba(0, 0, 0, 0.5);
    filter: contrast(1.25) saturate(1.35) brightness(1.05) hue-rotate(0deg);
}

.caption-cont {
    padding: 50px 50px 50px 60px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    z-index: 3;
}

.slider-item h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 3.2rem;
    font-weight: 900;
    margin-bottom: 30px;
    line-height: 1.15;
    background: linear-gradient(135deg, #ffffff 0%, #667eea 60%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 
        0 0 30px rgba(102, 126, 234, 0.5),
        0 0 60px rgba(102, 126, 234, 0.2),
        0 2px 10px rgba(0, 0, 0, 0.5);
    letter-spacing: 2px;
    position: relative;
    overflow: hidden;
}

.slider-item h2::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.5);
}

.slider-item .description {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.9;
    margin-bottom: 50px;
    font-weight: 400;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(102, 126, 234, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    max-width: 90%;
    position: relative;
    z-index: 4;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(10, 10, 10, 0.5);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
}

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

/* 高校logo轮播样式 */
.owl-carousel .owl-item img {
    width: 220px;
    height: 110px;
    object-fit: contain;
    margin: 0 auto;
    filter: grayscale(100%);
    transition: filter 0.3s ease;
}

.owl-carousel .owl-item img:hover {
    filter: grayscale(0%);
}

/* 高校图片卡片样式 */
.university-card {
    background-color: #f0f0f0;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    padding: 15px;
    margin: 10px;
    transition: all 0.3s ease;
    height: 150px;
    width: auto;
    max-width: 300px;
}

.university-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    background-color: #e0e0e0;
}

/* 副标题样式 */
.subtitle {
    text-align: center;
    margin-top: -15px;
    margin-bottom: 40px;
    color: #6c757d;
    font-size: 16px;
}