/* Global Styles - Enhanced Dark Tech Theme */
body {
    font-family: 'Inter', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    margin: 0;
    padding: 0;
    color: #e0e0e0; /* Light gray text for dark background */
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0f0f0f 100%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* 添加科技感背景纹理 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(0, 175, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(46, 239, 113, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: #FFFFFF;
    text-shadow: 0 0 20px rgba(0, 175, 255, 0.3);
    position: relative;
}

/* 为主要标题添加科技感效果 */
section:not(.hero-section) h2 {
    background: linear-gradient(135deg, #00AFFF, #2EEF71);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

/* HERO区域的h2标题样式 */
.hero-section h2 {
    color: #ffffff !important;
    background: none !important;
    -webkit-text-fill-color: #ffffff !important;
    text-align: center;
    margin-bottom: 0;
    position: relative;
    border: none !important;
    border-bottom: none !important;
    border-top: none !important;
    border-left: none !important;
    border-right: none !important;
}

/* 确保HERO区域h2没有任何伪元素 */
.hero-section h2::before,
.hero-section h2::after {
    display: none !important;
    content: none !important;
}

/* 强制移除HERO区域所有可能的边框和分割线 */
.hero-section h2,
.hero-section h2[style*="color"],
.hero-section h2[style*="font-size"] {
    border: none !important;
    border-bottom: none !important;
    border-top: none !important;
    border-left: none !important;
    border-right: none !important;
    outline: none !important;
    box-shadow: none !important;
    text-decoration: none !important;
}

/* 移除HERO区域container的边框 */
.hero-section .container {
    border: none !important;
    border-bottom: none !important;
    border-top: none !important;
    border-left: none !important;
    border-right: none !important;
}

/* 最高优先级：强制移除HERO区域所有可能的边框和分割线 */
#hero.hero-section h2,
#hero.hero-section h2[style*="color"],
#hero.hero-section h2[style*="font-size"],
#hero.hero-section h2[style*="font-weight"] {
    border: none !important;
    border-bottom: none !important;
    border-top: none !important;
    border-left: none !important;
    border-right: none !important;
    outline: none !important;
    box-shadow: none !important;
    text-decoration: none !important;
    background: none !important;
    background-image: none !important;
    background-color: transparent !important;
}

#hero.hero-section h2::before,
#hero.hero-section h2::after {
    display: none !important;
    content: none !important;
    width: 0 !important;
    height: 0 !important;
    border: none !important;
    background: none !important;
}

/* 终极解决方案：使用最高优先级选择器 */
html body #hero.hero-section h2,
html body #hero.hero-section h2[style*="color"],
html body #hero.hero-section h2[style*="font-size"],
html body #hero.hero-section h2[style*="font-weight"] {
    border: none !important;
    border-bottom: none !important;
    border-top: none !important;
    border-left: none !important;
    border-right: none !important;
    outline: none !important;
    box-shadow: none !important;
    text-decoration: none !important;
    background: none !important;
    background-image: none !important;
    background-color: transparent !important;
    position: relative !important;
}

html body #hero.hero-section h2::before,
html body #hero.hero-section h2::after {
    display: none !important;
    content: none !important;
    width: 0 !important;
    height: 0 !important;
    border: none !important;
    background: none !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
}

/* 确保HERO区域h2文字完全可见 */
html body #hero.hero-section h2 {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    color: #ffffff !important;
    font-size: 2.2em !important;
    font-weight: 300 !important;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5) !important;
    z-index: 10 !important;
    position: relative !important;
    margin: 20px 0 !important;
    padding: 0 !important;
    line-height: 1.4 !important;
    text-align: center !important;
    width: 100% !important;
    height: auto !important;
    overflow: visible !important;
    clip: auto !important;
    clip-path: none !important;
    -webkit-text-fill-color: #ffffff !important;
    -webkit-background-clip: unset !important;
    background-clip: unset !important;
    border: none !important;
    border-bottom: none !important;
    border-top: none !important;
    border-left: none !important;
    border-right: none !important;
    outline: none !important;
    box-shadow: none !important;
    text-decoration: none !important;
    background: none !important;
    background-image: none !important;
    background-color: transparent !important;
}

/* 强制覆盖所有可能的隐藏规则 */
html body #hero.hero-section h2[style*="color"],
html body #hero.hero-section h2[style*="font-size"],
html body #hero.hero-section h2[style*="font-weight"] {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    color: #ffffff !important;
    font-size: 2.2em !important;
    font-weight: 300 !important;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5) !important;
    z-index: 10 !important;
    position: relative !important;
    margin: 20px 0 !important;
    padding: 0 !important;
    line-height: 1.4 !important;
    text-align: center !important;
    width: 100% !important;
    height: auto !important;
    overflow: visible !important;
    clip: auto !important;
    clip-path: none !important;
    -webkit-text-fill-color: #ffffff !important;
    -webkit-background-clip: unset !important;
    background-clip: unset !important;
    border: none !important;
    border-bottom: none !important;
    border-top: none !important;
    border-left: none !important;
    border-right: none !important;
    outline: none !important;
    box-shadow: none !important;
    text-decoration: none !important;
    background: none !important;
    background-image: none !important;
    background-color: transparent !important;
}

/* 移除section h2下面的小横线 */

h1 { font-size: 2.8rem; line-height: 1.2; }
h2 { font-size: 2.2rem; line-height: 1.3; }
h3 { font-size: 1.6rem; line-height: 1.4; }

a {
    text-decoration: none;
    color: #00AFFF; /* Tech blue - brighter */
    transition: color 0.3s ease;
}

a:hover {
    color: #007BFF; /* Darker on hover */
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
    padding-left: 0;
}

/* Language Switcher Styles */
.language-nav {
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    z-index: 1002 !important;
    background: rgba(0, 0, 0, 0.9);
    padding: 10px 20px;
    border-radius: 0 0 0 15px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    transform: none !important;
}

.language-nav:hover {
    background: rgba(0, 0, 0, 0.95);
}

.language-switcher {
    display: flex;
    gap: 8px;
}

.lang-btn {
    color: #ffffff !important;
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.lang-btn:hover {
    background: #007bff !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.lang-btn.active {
    background: #007bff !important;
    border-color: #0056b3 !important;
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.4) !important;
    color: #ffffff !important;
}

.lang-btn:not(.active) {
    background: #6c757d !important;
    color: #ffffff !important;
}

.lang-btn:not(.active):hover {
    background: #5a6268 !important;
    color: #ffffff !important;
}

/* 确保active状态优先级最高 */
.language-nav .lang-btn.active {
    background: #007bff !important;
    border-color: #0056b3 !important;
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.4) !important;
    color: #ffffff !important;
    transform: translateY(-1px) !important;
}

/* Footer Styles */
.site-footer {
    background: rgba(0, 0, 0, 0.85);
    border-top: 1px solid #333;
    padding: 25px 0;
    margin-top: 60px;
    backdrop-filter: blur(10px);
}

.site-footer .footer-meta,
.site-footer .icp-notice {
    text-align: center;
    color: #d8d8d8;
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.8;
}

.site-footer .footer-meta {
    margin-bottom: 6px;
}

.site-footer .icp-notice a {
    color: #00afff;
    word-break: break-all;
}

.site-footer .icp-notice a:hover {
    color: #2eef71;
}

/* Mobile responsive for language switcher */
@media (max-width: 768px) {
    .language-nav {
        padding: 8px 15px;
        border-radius: 0 0 0 12px;
    }
    
    .lang-btn {
        padding: 6px 12px;
        font-size: 13px;
    }
}

/* Navigation Bar - Dark Theme */
header {
    background-color: rgba(18, 18, 18, 0.85); /* Semi-transparent dark background for tech feel */
    backdrop-filter: blur(10px); /* Frosted glass effect */
    -webkit-backdrop-filter: blur(10px);
    padding: 1rem 0;
    border-bottom: 1px solid #333; /* Dark border */
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: #FFFFFF; /* White logo */
}

header nav ul {
    display: flex;
    align-items: center;
}

header nav ul li {
    margin-left: 25px;
}

header nav ul li a {
    color: #c0c0c0; /* Light gray navigation links */
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

header nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #00AFFF; /* Bright tech blue */
    transition: width 0.3s ease;
}

header nav ul li a:hover::after,
header nav ul li a.active::after {
    width: 100%;
}

header nav ul li a:hover,
header nav ul li a:hover {
    color: #ffffff; /* White on hover */
    background-color: rgba(0, 0, 0, 0.1); /* Slight background on hover */
}

/* Hero Section - Dark Theme */
@keyframes hero-background-animation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero-section {
    background-image: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('img/banner.jpg');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: #FFFFFF;
    padding: 140px 0; /* 进一步增加内边距 */
    text-align: center;
    position: relative;
    overflow: hidden; /* 隐藏可能的溢出动画元素 */
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle, rgba(0,175,255,0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.2;
    animation: pulse-gentle 8s ease-in-out infinite;
}

@keyframes pulse-gentle {
    0%, 100% { opacity: 0.1; }
    50% { opacity: 0.3; }
}

.hero-section h1 {
    font-size: 3.8rem; /* 再次增大标题 */
    margin-bottom: 1.5rem;
    font-weight: 700;
    color: #FFFFFF;
    text-shadow: 0 0 15px rgba(0, 175, 255, 0.7), 0 0 5px rgba(255,255,255,0.5); /* 增强发光 */
    animation: slideInDown 1s ease-out;
}

.hero-section .subtitle {
    font-size: 1.5rem; /* 增大副标题 */
    margin-bottom: 3.5rem;
    line-height: 1.8;
    opacity: 0.9;
    animation: slideInUp 1s ease-out 0.3s backwards;
}

.hero-section .subtitle .mobile-break { display: none; }

/* Button Styles - Dark Theme */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 35px; /* 增大按钮 */
    font-size: 1.15rem;
    font-weight: 600;
    text-align: center;
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn i {
    margin-right: 10px;
}

.btn-primary {
    background-color: #00AFFF; /* 亮科技蓝 */
    color: #121212; /* 深色文字以保证对比度 */
    border-color: #00AFFF;
    animation: pulse-glow 2s infinite alternate; /* 按钮呼吸光晕 */
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary {
    background-color: #00AFFF; /* 亮科技蓝 */
    color: #121212; /* 深色文字以保证对比度 */
    border-color: #00AFFF;
    animation: pulse-glow 2s infinite alternate; /* 按钮呼吸光晕 */
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
}

@keyframes pulse-glow {
    from {
        box-shadow: 0 0 5px rgba(0, 175, 255, 0.3), 0 0 10px rgba(0, 175, 255, 0.2);
    }
    to {
        box-shadow: 0 0 15px rgba(0, 175, 255, 0.6), 0 0 25px rgba(0, 175, 255, 0.4);
    }
}

.btn-primary:hover {
    background-color: #0056b3; /* 更深的蓝色 */
    color: #ffffff;
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(0, 175, 255, 0.6), 0 0 25px rgba(0, 175, 255, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: #00AFFF; /* 亮科技蓝 */
    border-color: #00AFFF;
    position: relative;
    overflow: hidden;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background-color: rgba(0, 175, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
    z-index: 0;
}

.btn-secondary:hover::before {
    width: 200%;
    height: 200%;
}

.btn-secondary span, .btn-secondary i { /* 确保文字和图标在伪元素之上 */
    position: relative;
    z-index: 1;
}

.btn-secondary:hover {
    background-color: transparent; /* 保持透明，让伪元素效果显示 */
    color: #FFFFFF; /* 悬停时文字变白 */
    border-color: #00AFFF;
}

/* Core Advantages Section */
.about-section, .products-section, .cases-section, .process-section, .contact-section {
    padding: 80px 0;
    border-bottom: 1px solid #222; /* 区块间细微分隔 */
}

/* 移除HERO区域的底部边框 */
.hero-section {
    border-bottom: none !important;
}

.products-section, .process-section {
    background-color: #1a1a1a; /* 稍浅的深色背景，区分区块 */
}

/* 已合并到上面的section h2样式中 */

/* 已移除section h2下面的小横线 */

/* About Us Section - Dark Theme */
.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: flex-start;
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text h3 {
    margin-bottom: 20px;
    color: #00AFFF; /* 亮科技蓝 */
}

.about-text p {
    color: #b0b0b0; /* 文本颜色调整 */
}

.core-advantages {
    flex: 1.5;
    min-width: 300px;
}

.core-advantages h3 {
    margin-bottom: 25px;
    text-align: left;
    color: #00AFFF;
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
}

.advantage-item {
    background-color: #222; /* 卡片背景 */
    padding: 25px;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #333;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.advantage-item {
    background-color: #222; /* 卡片背景 */
    padding: 25px;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #333;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), 
                box-shadow 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), 
                border-color 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
}

.advantage-item::after { /* 添加悬停时的辉光效果 */
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 175, 255, 0.15) 0%, rgba(0, 175, 255, 0) 70%);
    transform: scale(0);
    transition: transform 0.5s ease;
    z-index: 0;
    opacity: 0;
}

.advantage-item:hover::after {
    transform: scale(1);
    opacity: 1;
}

.advantage-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 30px rgba(0, 175, 255, 0.25);
    border-color: #00AFFF;
}

.advantage-item > * { /* 确保内容在辉光之上 */
    position: relative;
    z-index: 1;
}

.advantage-item i {
    font-size: 2.8rem; /* 略微增大图标 */
    color: #00AFFF;
    margin-bottom: 15px;
    transition: transform 0.3s ease;
}

.advantage-item:hover i {
    transform: scale(1.1);
}

.advantage-item h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: #FFFFFF;
}

.advantage-item p {
    color: #a0a0a0;
}

/* Products Section - Dark Theme */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

/* Feature List Styles */
.feature-list {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.feature-list p {
    font-size: 1.2rem;
    margin: 15px 0;
    line-height: 1.6;
    transition: transform 0.3s ease;
    text-align: center;
}

.feature-list p:hover {
    transform: scale(1.05);
}

@media (max-width: 768px) {
    .feature-list p {
        font-size: 1.1rem;
    }
}

.product-item {
    background: linear-gradient(145deg, #1e1e1e, #2a2a2a);
    padding: 35px;
    border-radius: 20px;
    border: 1px solid rgba(0, 175, 255, 0.2);
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.4),
        0 1px 8px rgba(0, 175, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.product-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(0, 175, 255, 0.05) 50%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.product-item::before { /* 卡片悬停时的边框动画 */
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border: 2px solid transparent;
    border-radius: 10px;
    transition: border-color 0.4s ease;
    pointer-events: none; /* 不干扰鼠标事件 */
}

.product-item:hover::before {
    border-color: rgba(0, 175, 255, 0.5);
}

.product-item:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: 
        0 20px 50px rgba(0, 0, 0, 0.6),
        0 5px 20px rgba(0, 175, 255, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border-color: rgba(0, 175, 255, 0.6);
}

.product-item:hover::after {
    opacity: 1;
}

.product-item .product-icon {
    font-size: 3.2rem; /* 略微增大 */
    color: #00AFFF;
    margin-bottom: 20px;
    align-self: center;
    transition: transform 0.3s ease;
}

.product-item:hover .product-icon {
    transform: rotateY(180deg); /* 图标翻转效果 */
}

.product-item h3 {
    margin-bottom: 15px;
    color: #00AFFF;
    text-align: center;
    font-size: 1.4rem;
}

.product-item h4 {
    font-size: 1.1rem;
    color: #c0c0c0;
    margin-top: 20px;
    margin-bottom: 10px;
    border-bottom: 1px solid #444;
    padding-bottom: 8px;
}

.product-item ul li {
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
    transition: color 0.3s ease;
}

.product-item ul li:hover {
    color: #00AFFF;
}

.product-item ul li i {
    color: #2EEF71; /* 更亮的绿色 */
    margin-right: 10px;
    margin-top: 4px;
    transition: transform 0.3s ease;
}

.product-item ul li:hover i {
    transform: translateX(3px);
}

.product-item p {
    font-size: 0.95rem;
    color: #a0a0a0;
    line-height: 1.6;
    margin-top: auto;
}

/* Success Cases Section - Enhanced Dark Tech Theme */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

@media (max-width: 1024px) {
    .case-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.case-item, .sales-case, .enterprise-case {
    background: linear-gradient(145deg, #1e1e1e, #2a2a2a);
    color: #FFFFFF;
    padding: 35px 30px;
    border-radius: 20px;
    border: 1px solid rgba(0, 175, 255, 0.2);
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.4),
        0 1px 8px rgba(0, 175, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: visible;
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(10px);
    min-height: 520px;
    justify-content: flex-start;
}

/* 确保案例卡片内容在同一水平线上 */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    align-items: start;
}

.case-grid .case-item,
.case-grid .sales-case,
.case-grid .enterprise-case {
    display: flex;
    flex-direction: column;
    min-height: 520px;
}

.case-item::after, .sales-case::after, .enterprise-case::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(46, 239, 113, 0.05) 50%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.case-item::before, .sales-case::before, .enterprise-case::before { /* 与产品卡片保持一致的边框动画 */
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border: 2px solid transparent;
    border-radius: 10px;
    transition: border-color 0.4s ease;
    pointer-events: none;
}

.case-item:hover::before, .sales-case:hover::before, .enterprise-case:hover::before {
    border-color: rgba(0, 175, 255, 0.5);
}

.case-item:hover, .sales-case:hover, .enterprise-case:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: 
        0 20px 50px rgba(0, 0, 0, 0.6),
        0 5px 20px rgba(46, 239, 113, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border-color: rgba(46, 239, 113, 0.6);
}

.case-item:hover::after, .sales-case:hover::after, .enterprise-case:hover::after {
    opacity: 1;
}

.case-icon {
    font-size: 3.2rem; /* 与产品图标大小保持一致 */
    color: #00AFFF;
    margin-bottom: 20px;
    align-self: center;
    transition: transform 0.3s ease;
}

.case-item:hover .case-icon, .sales-case:hover .case-icon, .enterprise-case:hover .case-icon {
    transform: rotateY(180deg); /* 与产品图标保持一致的翻转效果 */
}

.case-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    flex: 1;
}

/* 确保案例内容在同一水平线上 */
.case-grid .case-content {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    flex: 1;
    height: auto;
}

.case-grid .case-content h3 {
    margin-bottom: 15px;
    flex-shrink: 0;
}

.case-grid .case-content p {
    margin-bottom: 10px;
    line-height: 1.4;
    font-size: 0.9rem;
}

.case-content h3 {
    margin-bottom: 25px;
    color: #00AFFF; /* 与产品标题颜色保持一致 */
    text-align: center;
    font-size: 1.4rem;
    font-weight: 600;
    line-height: 1.3;
}

.case-content p {
    margin-bottom: 15px;
    line-height: 1.6;
    font-size: 0.9rem;
    color: #a0a0a0; /* 与产品描述文字颜色保持一致 */
    text-align: left;
    flex-grow: 1;
}

.case-content p strong {
    color: #00AFFF; /* 加粗文字使用品牌色 */
    font-weight: 600;
    text-shadow: 0 0 10px rgba(0, 175, 255, 0.3);
}

.case-content .highlight {
    font-weight: bold;
    color: #FFA500;
    text-shadow: 0 0 8px rgba(255, 165, 0, 0.7);
}

.sales-case:hover {
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.4), 
                0 0 0 2px rgba(118, 75, 162, 0.5),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.case-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    margin: 0 auto 25px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.4s ease;
}

.case-icon i {
    font-size: 2.5rem;
    color: #00AFFF;
    transition: all 0.4s ease;
}

.case-item:hover .case-icon {
    transform: scale(1.1) rotateY(360deg);
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 30px rgba(0, 175, 255, 0.3);
}

.case-item:hover .case-icon i {
    color: #FFFFFF;
    text-shadow: 0 0 20px rgba(0, 175, 255, 0.8);
}

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

.case-content h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: #FFFFFF;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    font-weight: 600;
    line-height: 1.3;
}

/* Contact Section - Dark Theme */
.contact-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}

.contact-form-container {
    flex: 1.5;
    min-width: 300px;
    background-color: #1e1e1e;
    padding: 35px;
    border-radius: 8px;
    border: 1px solid #333;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

.contact-details {
    flex: 1;
    min-width: 300px;
    padding-left: 20px;
}

.contact-details p {
    margin-bottom: 15px;
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    color: #c0c0c0;
}

.contact-details i {
    color: #00AFFF;
    margin-right: 12px;
    width: 20px;
    text-align: center;
}

.contact-details hr {
    border: 0;
    border-top: 1px solid #444;
    margin: 25px 0;
}

.contact-details strong {
    font-weight: 600;
    color: #FFFFFF;
}

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

#contact-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #b0b0b0;
}

#contact-form input[type="text"],
#contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #444;
    background-color: #2a2a2a;
    color: #e0e0e0;
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 1rem;
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

#contact-form input[type="text"]::placeholder,
#contact-form textarea::placeholder {
    color: #777;
}

#contact-form input[type="text"]:focus,
#contact-form textarea:focus {
    border-color: #00AFFF;
    background-color: #333;
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(0,175,255,.25);
}

#contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

/* Mobile responsive for contact section */
@media (max-width: 768px) {
    .contact-grid {
        flex-direction: column;
    }
    .contact-details {
        padding-left: 0;
        margin-top: 30px;
        text-align: center;
    }
    .contact-details p {
        justify-content: center;
    }
}