/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #1E3A8A;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #1E40AF;
}

/* 导航栏 */
.navbar {
    background: rgba(15, 23, 42, 0.95) !important;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    transition: all 0.3s ease;
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: #60A5FA !important;
    transform: translateY(-2px);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    background: linear-gradient(90deg, #60A5FA, #8B5CF6);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after {
    width: 100%;
}

/* 下拉菜单样式 */
.dropdown-menu {
    background: rgba(15, 23, 42, 0.98) !important;
    border: 1px solid rgba(96, 165, 250, 0.2);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    margin-top: 0.5rem;
}

.dropdown-item {
    color: rgba(255, 255, 255, 0.8) !important;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    border-radius: 4px;
    margin: 0.25rem 0.5rem;
}

.dropdown-item:hover {
    background: rgba(96, 165, 250, 0.1) !important;
    color: #60A5FA !important;
    transform: translateX(5px);
}

.dropdown-toggle::after {
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
}

.dropdown-toggle[aria-expanded="true"]::after {
    transform: rotate(180deg);
}

/* 主视觉区域 */
.hero-section {
    min-height: 100vh;
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #334155 100%);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(96, 165, 250, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

.hero-content {
    z-index: 2;
    position: relative;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: white;
    line-height: 1.2;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out;
}

.text-gradient {
    background: linear-gradient(135deg, #60A5FA, #8B5CF6, #10B981);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    -moz-background-clip: text;
    -moz-text-fill-color: transparent;
    background-clip: text;
    color: transparent !important;
    animation: gradientShift 3s ease-in-out infinite;
    display: inline-block;
    font-weight: inherit;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-buttons {
    animation: fadeInUp 1s ease-out 0.4s both;
}

.btn-primary {
    background: linear-gradient(135deg, #1E3A8A, #3B82F6);
    border: none;
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1E40AF, #60A5FA);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(30, 58, 138, 0.4);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    color: white;
    transform: translateY(-2px);
}

/* 浮动卡片 */
.hero-visual {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.floating-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    backdrop-filter: blur(25px);
    border: 2px solid rgba(255, 255, 255, 0.15);
    padding: 0;
    border-radius: 24px;
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.15),
        0 0 0 1px rgba(255, 255, 255, 0.05) inset,
        0 1px 0 rgba(255, 255, 255, 0.2) inset;
    position: relative;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    animation: floatCard 8s ease-in-out infinite;
    max-width: 420px;
    margin: 0 auto;
}

.floating-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 
        0 35px 70px rgba(0, 0, 0, 0.25),
        0 0 0 1px rgba(100, 181, 246, 0.3) inset,
        0 1px 0 rgba(255, 255, 255, 0.3) inset;
    border-color: rgba(100, 181, 246, 0.4);
}

.floating-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(100, 181, 246, 0.15) 0%,
        rgba(129, 199, 132, 0.1) 50%,
        rgba(156, 39, 176, 0.1) 100%);
    opacity: 0;
    z-index: -1;
    transition: opacity 0.4s ease;
}

.floating-card:hover::before {
    opacity: 1;
}

.floating-card .feature-showcase {
    padding: 2.5rem 2rem;
    text-align: center;
}

.floating-card .feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #64b5f6 0%, #42a5f5 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 
        0 10px 20px rgba(100, 181, 246, 0.3),
        0 0 0 3px rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.floating-card .feature-icon:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 
        0 15px 30px rgba(100, 181, 246, 0.4),
        0 0 0 4px rgba(255, 255, 255, 0.2);
}

.floating-card .feature-icon i {
    font-size: 32px;
    color: white;
}

.floating-card h3 {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: 0.5px;
}

.floating-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    margin-bottom: 2rem;
    font-weight: 400;
}

.floating-card .feature-stats {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.floating-card .stat-item {
    flex: 1;
    text-align: center;
}

.floating-card .stat-number {
    display: block;
    color: #64b5f6;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.25rem;
}

.floating-card .stat-label {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 合作高校样式 */
.university-partners {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.partners-title {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

@keyframes floatCard {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg);
        box-shadow: 
            0 25px 50px rgba(0, 0, 0, 0.15),
            0 0 0 1px rgba(255, 255, 255, 0.05) inset,
            0 1px 0 rgba(255, 255, 255, 0.2) inset;
    }
    25% { 
        transform: translateY(-8px) rotate(0.5deg);
    }
    50% { 
        transform: translateY(-12px) rotate(0deg);
        box-shadow: 
            0 30px 60px rgba(0, 0, 0, 0.2),
            0 0 0 1px rgba(255, 255, 255, 0.08) inset,
            0 1px 0 rgba(255, 255, 255, 0.25) inset;
    }
    75% { 
        transform: translateY(-8px) rotate(-0.5deg);
    }
}

/* 添加一个微妙的光晕效果 */
.floating-card::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, 
        rgba(100, 181, 246, 0.3),
        rgba(129, 199, 132, 0.2),
        rgba(156, 39, 176, 0.2),
        rgba(100, 181, 246, 0.3));
    border-radius: 26px;
    z-index: -2;
    opacity: 0;
    filter: blur(8px);
    transition: opacity 0.5s ease;
    animation: glowRotate 4s linear infinite;
}

.floating-card:hover::after {
    opacity: 0.6;
}

@keyframes glowRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 定制化AI平台特殊样式 */
.custom-ai-platform .floating-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    backdrop-filter: blur(25px);
    border: 2px solid rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    padding: 2.5rem 2rem;
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.15),
        0 0 0 1px rgba(255, 255, 255, 0.05) inset,
        0 1px 0 rgba(255, 255, 255, 0.2) inset;
    position: relative;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    animation: floatCard 8s ease-in-out infinite;
    max-width: 420px;
    margin: 0 auto;
}

.custom-ai-platform .floating-card:nth-child(1) {
    animation-delay: 0s;
    transform: translateX(-20px);
}

.custom-ai-platform .floating-card:nth-child(2) {
    animation-delay: 2s;
    transform: translateX(20px);
}

.custom-ai-platform .floating-card:nth-child(3) {
    animation-delay: 4s;
    transform: translateX(-10px);
}

.custom-ai-platform .floating-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 
        0 35px 70px rgba(0, 0, 0, 0.25),
        0 0 0 1px rgba(100, 181, 246, 0.3) inset,
        0 1px 0 rgba(255, 255, 255, 0.3) inset;
    border-color: rgba(100, 181, 246, 0.4);
}

.custom-ai-platform .floating-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(100, 181, 246, 0.15) 0%,
        rgba(129, 199, 132, 0.1) 50%,
        rgba(156, 39, 176, 0.1) 100%);
    opacity: 0;
    z-index: -1;
    transition: opacity 0.4s ease;
    border-radius: 24px;
}

.custom-ai-platform .floating-card:hover::before {
    opacity: 1;
}

.custom-ai-platform .card-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.custom-ai-platform .card-icon i {
    color: white;
    font-size: 20px;
}

.custom-ai-platform .floating-card h5 {
    color: rgba(255, 255, 255, 0.95);
    font-weight: 700;
    margin-bottom: 12px;
    font-size: 20px;
    letter-spacing: -0.02em;
}

.custom-ai-platform .floating-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    margin-bottom: 20px;
    line-height: 1.6;
    font-weight: 400;
}

.model-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.model-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.deployment-stats {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.stat-badge {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.support-features {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.feature-dot {
    position: relative;
    color: #4a5568;
    font-size: 12px;
    padding-left: 12px;
}

.feature-dot::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: #667eea;
    border-radius: 50%;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.chat-message {
    background: rgba(30, 58, 138, 0.1);
    padding: 1rem;
    border-radius: 15px;
    border-left: 3px solid #60A5FA;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 章节标题 */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1E293B;
    margin-bottom: 1rem;
    position: relative;
}

/* 不同section的背景色区分 */
.bg-light {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%) !important;
}

.bg-primary-light {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%) !important;
}

.bg-gradient-soft {
    background: linear-gradient(135deg, #fefefe 0%, #f1f5f9 50%, #e2e8f0 100%) !important;
}

.bg-purple-light {
    background: linear-gradient(135deg, #faf5ff 0%, #f3e8ff 100%) !important;
}

.bg-green-light {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%) !important;
}

/* 全球AI转发平台页面样式 */
.global-ai-platform .hero-section h1 {
    color: white !important;
}

.global-ai-platform .hero-section .lead {
    color: rgba(255, 255, 255, 0.9) !important;
}

/* 模型滚动容器样式 */
.models-scroll-container {
    overflow: hidden;
    width: 100%;
    position: relative;
    background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.8) 10%, rgba(255,255,255,0.8) 90%, rgba(255,255,255,0) 100%);
    padding: 30px 0;
    height: 500px;
}

/* Scoped to avoid affecting other components */
.models-scroll-container .models-scroll-track {
    display: flex;
    flex-direction: column;
    gap: 40px;
    width: fit-content;
}

.model-row {
    display: flex;
    animation: scroll-models 20s linear infinite;
    width: fit-content;
}

.model-row:nth-child(2) {
    animation-direction: reverse;
}

.model-card-scroll {
    background: white;
    border-radius: 15px;
    padding: 2rem 1.5rem;
    margin: 0 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    text-align: center;
    min-width: 220px;
    flex-shrink: 0;
}

.model-card-scroll:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
    animation-play-state: paused;
}

.model-card-scroll .model-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 1rem;
    border-radius: 8px;
}

.model-card-scroll h5 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.model-card-scroll p {
    font-size: 0.85rem;
    color: #666;
    margin: 0;
}

@keyframes scroll-models {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* 暂停动画当鼠标悬停在容器上 */
.models-scroll-container:hover .model-row {
    animation-play-state: paused;
}

/* 在线体验样式 */
.demo-container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    margin: 0 auto;
    max-width: 1200px;
}

.demo-header {
    background: #f8f9fa;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #e9ecef;
}

.demo-controls {
    display: flex;
    gap: 8px;
    margin-right: 20px;
}

.demo-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.demo-dot.red {
    background-color: #ff5f56;
}

.demo-dot.yellow {
    background-color: #ffbd2e;
}

.demo-dot.green {
    background-color: #27ca3f;
}

.demo-title {
    font-weight: 600;
    color: #333;
    margin-right: auto;
}

.demo-url {
    color: #666;
    font-size: 14px;
    background: #e9ecef;
    padding: 4px 12px;
    border-radius: 16px;
}

.demo-iframe-container {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
}

.demo-iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

@media (max-width: 768px) {
    .demo-iframe-container {
        height: 500px;
    }
    
    .demo-header {
        padding: 8px 15px;
    }
    
    .demo-title {
        font-size: 14px;
    }
    
    .demo-url {
        font-size: 12px;
        padding: 2px 8px;
    }
}

/* 聚合AI对话页面专用样式 */
.min-vh-50 {
    min-height: 50vh;
}

.hero-stats {
    margin-top: 2rem;
}

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

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: #fff;
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 0.25rem;
}

.floating-cards {
    position: relative;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 1.5rem;
    text-align: center;
    color: white;
    animation: float 6s ease-in-out infinite;
    transition: all 0.3s ease;
}

.floating-card:hover {
    transform: scale(1.1) !important;
    background: rgba(255, 255, 255, 0.2);
}

.floating-card i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    display: block;
}

.floating-card span {
    font-weight: 600;
    font-size: 1.1rem;
}

.card-1 {
    top: 20px;
    left: 20px;
    animation-delay: 0s;
}

.card-2 {
    top: 80px;
    right: 30px;
    animation-delay: 2s;
}

.card-3 {
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.use-case-card {
    background: white;
    border-radius: 15px;
    padding: 2rem 1.5rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
    height: 100%;
}

.use-case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.use-case-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.use-case-card h5 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.use-case-card p {
    color: #7f8c8d;
    line-height: 1.6;
    margin: 0;
}

.contact-card {
    background: white;
    border-radius: 15px;
    padding: 2.5rem 2rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
    height: 100%;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.contact-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 1.8rem;
}

.contact-card h5 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.contact-card p {
    color: #7f8c8d;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
    .floating-cards {
        height: 200px;
    }
    
    .floating-card {
        padding: 1rem;
        font-size: 0.9rem;
    }
    
    .floating-card i {
        font-size: 1.5rem;
    }
    
    .card-1, .card-2, .card-3 {
        position: relative;
        top: auto;
        left: auto;
        right: auto;
        bottom: auto;
        transform: none;
        margin: 0.5rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .hero-buttons .btn {
        margin-bottom: 0.5rem;
    }
}

/* 模型卡片样式 */
.model-card {
    background: white;
    padding: 2rem 1.5rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.model-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.model-logo {
    width: 160px;
    height: 120px;
    object-fit: contain;
    margin-bottom: 1rem;
    border-radius: 8px;
}

.model-card h5 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1E293B;
    margin-bottom: 0.5rem;
}

.model-card p {
    color: #64748B;
    font-size: 0.9rem;
    margin: 0;
}

/* API服务卡片样式 */
.api-service-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.api-service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #60A5FA, #8B5CF6, #10B981);
}

.api-service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #60A5FA, #8B5CF6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: white;
}

.api-service-card h5 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1E293B;
    margin-bottom: 1rem;
}

.api-service-card p {
    color: #64748B;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.api-endpoint {
    background: #F8FAFC;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border-left: 3px solid #60A5FA;
    font-family: 'Courier New', monospace;
}

.api-endpoint .method {
    background: #60A5FA;
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-right: 0.5rem;
}

.api-endpoint .url {
    color: #1E293B;
    font-weight: 500;
}

/* 联系信息网格样式 */
.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.contact-info-item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
}

.contact-info-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.contact-info-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #60A5FA, #8B5CF6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

.contact-info-item h5 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1E293B;
    margin-bottom: 1rem;
}

.contact-info-item p {
    color: #64748B;
    font-size: 1.1rem;
    margin: 0;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #60A5FA, #8B5CF6);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #64748B;
    max-width: 600px;
    margin: 0 auto;
}

/* 产品卡片 */
.product-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #60A5FA, #8B5CF6, #10B981);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.product-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #60A5FA, #8B5CF6);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    color: white;
}

.product-card h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1E293B;
    margin-bottom: 1rem;
}

.product-card p {
    color: #64748B;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin-bottom: 1.5rem;
}

.feature-list li {
    padding: 0.5rem 0;
    color: #64748B;
    display: flex;
    align-items: center;
}

.feature-list li i {
    color: #10B981;
    margin-right: 0.5rem;
    font-size: 0.9rem;
}

.btn-outline-primary {
    border: 2px solid #60A5FA;
    color: #60A5FA;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-outline-primary:hover {
    background: #60A5FA;
    color: white;
    transform: translateY(-2px);
}

/* 模型滚动容器 */
/* 多行滚动容器 */
.models-multi-scroll {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 2rem 0;
    background-color: #f8f8f8;
    border-radius: 10px;
}

.models-scroll-row {
    margin-bottom: 2rem;
    overflow: hidden;
    width: 100%;
}

.models-scroll-row:last-child {
    margin-bottom: 0;
}

.models-scroll-track {
    display: flex;
    gap: 3rem;
    width: calc(200% + 3rem);
    align-items: center;
}

.scroll-right {
    animation: scrollRight 30s linear infinite;
}

.scroll-left {
    animation: scrollLeft 30s linear infinite;
}

@keyframes scrollRight {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-33.33%);
    }
}

@keyframes scrollLeft {
    0% {
        transform: translateX(-33.33%);
    }
    100% {
        transform: translateX(0);
    }
}

/* 直接展示的模型logo */
.model-logo-direct {
    width: 120px;
    height: 80px;
    object-fit: contain;
    opacity: 0;
    margin: 0 15px;
    border-radius: 8px;
    flex-shrink: 0;
    animation: fadeInSlide 2s ease-in-out forwards;
}

/* 为每个logo设置不同的延迟 */
.models-scroll-track.scroll-right .model-logo-direct:nth-child(1) { animation-delay: 0.1s; }
.models-scroll-track.scroll-right .model-logo-direct:nth-child(2) { animation-delay: 0.2s; }
.models-scroll-track.scroll-right .model-logo-direct:nth-child(3) { animation-delay: 0.3s; }
.models-scroll-track.scroll-right .model-logo-direct:nth-child(4) { animation-delay: 0.4s; }
.models-scroll-track.scroll-right .model-logo-direct:nth-child(5) { animation-delay: 0.5s; }
.models-scroll-track.scroll-right .model-logo-direct:nth-child(6) { animation-delay: 0.6s; }
.models-scroll-track.scroll-right .model-logo-direct:nth-child(7) { animation-delay: 0.7s; }
.models-scroll-track.scroll-right .model-logo-direct:nth-child(8) { animation-delay: 0.8s; }
.models-scroll-track.scroll-right .model-logo-direct:nth-child(9) { animation-delay: 0.9s; }
.models-scroll-track.scroll-right .model-logo-direct:nth-child(10) { animation-delay: 1.0s; }

.models-scroll-track.scroll-left .model-logo-direct:nth-child(1) { animation-delay: 0.2s; }
.models-scroll-track.scroll-left .model-logo-direct:nth-child(2) { animation-delay: 0.4s; }
.models-scroll-track.scroll-left .model-logo-direct:nth-child(3) { animation-delay: 0.6s; }
.models-scroll-track.scroll-left .model-logo-direct:nth-child(4) { animation-delay: 0.8s; }
.models-scroll-track.scroll-left .model-logo-direct:nth-child(5) { animation-delay: 1.0s; }
.models-scroll-track.scroll-left .model-logo-direct:nth-child(6) { animation-delay: 1.2s; }
.models-scroll-track.scroll-left .model-logo-direct:nth-child(7) { animation-delay: 1.4s; }
.models-scroll-track.scroll-left .model-logo-direct:nth-child(8) { animation-delay: 1.6s; }
.models-scroll-track.scroll-left .model-logo-direct:nth-child(9) { animation-delay: 1.8s; }
.models-scroll-track.scroll-left .model-logo-direct:nth-child(10) { animation-delay: 2.0s; }

@keyframes fadeInSlide {
    0% {
        opacity: 0;
        transform: translateX(-30px);
    }
    100% {
        opacity: 0.9;
        transform: translateX(0);
    }
}

/* 解决方案卡片 */
.solution-card {
    padding: 2rem 1.5rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.solution-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #60A5FA, #8B5CF6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.8rem;
    color: white;
}

.solution-card h5 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1E293B;
    margin-bottom: 1rem;
}

.solution-card p {
    color: #64748B;
    line-height: 1.6;
}

/* 服务流程 */
.process-timeline {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.process-step {
    text-align: center;
    max-width: 180px;
    flex: 1;
    min-width: 150px;
}

.process-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #60A5FA, #8B5CF6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.8rem;
    color: white;
    box-shadow: 0 8px 25px rgba(96, 165, 250, 0.3);
}

.process-step h5 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1E293B;
    margin-bottom: 0.5rem;
}

.process-step p {
    color: #64748B;
    font-size: 0.9rem;
    line-height: 1.5;
}

.process-arrow {
    font-size: 1.5rem;
    color: #60A5FA;
    margin: 0 1rem;
}

/* 统计数据 */
.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #60A5FA, #8B5CF6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-item p {
    color: #64748B;
    font-weight: 500;
}

/* 关于我们视觉 */
.about-visual {
    position: relative;
}

.about-image {
    position: relative;
    z-index: 2;
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: 20px;
    bottom: 20px;
    background: linear-gradient(135deg, #60A5FA, #8B5CF6);
    border-radius: 15px;
    z-index: -1;
    opacity: 0.1;
}

/* 联系我们 */
.contact-item {
    padding: 2rem 1.5rem;
}

.contact-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #60A5FA, #8B5CF6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

.contact-item h5 {
    color: white;
    font-weight: 600;
    margin-bottom: 1rem;
}

.contact-item p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1rem;
}

.qr-code {
    width: 120px;
    height: 120px;
    border-radius: 10px;
    border: 3px solid rgba(255, 255, 255, 0.2);
}

/* 返回顶部按钮 */
#backToTop {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #60A5FA, #8B5CF6);
    border: none;
    box-shadow: 0 4px 15px rgba(96, 165, 250, 0.3);
    transition: all 0.3s ease;
}

#backToTop:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(96, 165, 250, 0.4);
}

/* 关于我们页面样式 */
.about-hero-section {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
}

.about-hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    opacity: 0.3;
}

.hero-stats .stat-item {
    padding: 1rem;
}

.hero-stats h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

/* 时间线样式 */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #007bff, #28a745, #ffc107, #17a2b8);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 2rem;
}

.timeline-marker {
    position: absolute;
    left: -2rem;
    top: 0.5rem;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.timeline-content {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-left: 4px solid #007bff;
}

.timeline-item:nth-child(2) .timeline-content {
    border-left-color: #28a745;
}

.timeline-item:nth-child(3) .timeline-content {
    border-left-color: #ffc107;
}

.timeline-item:nth-child(4) .timeline-content {
    border-left-color: #17a2b8;
}

/* 团队卡片悬停效果 */
.card:hover {
    transform: translateY(-5px);
    transition: all 0.3s ease;
}

/* 渐变背景 */
.bg-gradient-primary {
    background: linear-gradient(135deg, #007bff, #0056b3) !important;
}

.bg-gradient-success {
    background: linear-gradient(135deg, #28a745, #1e7e34) !important;
}

.bg-gradient-warning {
    background: linear-gradient(135deg, #ffc107, #e0a800) !important;
}

/* 服务保障卡片样式 */
.service-guarantee-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    border: 1px solid rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    height: 100%;
}

.service-guarantee-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.guarantee-icon {
    transition: all 0.3s ease;
}

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

/* 渐变背景扩展 */
.bg-gradient-info {
    background: linear-gradient(135deg, #17a2b8, #138496) !important;
}

/* 联系表单卡片样式 */
.contact-form-card {
    background: rgba(0, 0, 0, 0.8);
    border-radius: 1rem;
    padding: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* 微信客服二维码样式 */
.wechat-qr-section {
    padding: 2rem 0;
}

.qr-code-container {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 0.75rem;
    overflow: hidden;
}

.qr-code-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-stats h3 {
        font-size: 2rem;
    }
    
    .timeline {
        padding-left: 1.5rem;
    }
    
    .timeline-item {
        padding-left: 1.5rem;
    }
    
    .timeline-marker {
        left: -1.5rem;
    }
    
    .service-guarantee-card {
        padding: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .guarantee-icon {
        width: 80px !important;
        height: 80px !important;
    }
    
    .qr-code-container {
        width: 150px !important;
        height: 150px !important;
    }
    
    .wechat-qr-section {
        padding: 1rem 0;
    }
}

/* 定制化AI平台页面样式 */
.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #60A5FA, #8B5CF6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

/* 案例图片堆叠样式 */
.cases-images-stack {
    padding-right: 2rem;
    position: relative;
}

.case-image-item {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    margin-bottom: 0.5rem;
    transform-origin: left center;
}

.case-image-item:nth-child(1) {
    transform: rotate(-2deg) translateX(0);
    z-index: 3;
}

.case-image-item:nth-child(2) {
    transform: rotate(1.5deg) translateX(15px);
    z-index: 2;
    margin-top: -80px;
}

.case-image-item:hover {
    transform: rotate(0deg) translateY(-10px) scale(1.05);
    z-index: 10;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
}

.case-image-item img {
    width: 100%;
    height: auto;
    transition: transform 0.3s ease;
    border-radius: 15px;
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 1.5rem 1rem 1rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
    border-radius: 0 0 15px 15px;
}

.case-image-item:hover .image-overlay {
    transform: translateY(0);
}

.image-overlay h5,
.image-overlay h6 {
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.image-overlay p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.9;
}

/* 合作机构信息样式 */
.cooperation-info {
    padding-left: 2rem;
}

.cooperation-info h3 {
    color: #2c3e50;
    font-weight: 700;
}

.cooperation-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.cooperation-stats .stat-item {
    text-align: center;
}

.cooperation-stats .stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: #3498db;
    margin-bottom: 0.5rem;
}

.cooperation-stats .stat-label {
    color: #666;
    font-size: 0.9rem;
}

.cooperation-list h5 {
    color: #2c3e50;
    font-weight: 600;
}

.partner-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.partner-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.partner-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}



.contact-form-card {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.contact-form-card .form-control {
    border: 2px solid #E2E8F0;
    border-radius: 10px;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.contact-form-card .form-control:focus {
    border-color: #60A5FA;
    box-shadow: 0 0 0 0.2rem rgba(96, 165, 250, 0.25);
}

/* 定制化AI平台页面样式 */
.custom-ai-platform .hero-section h1 {
    color: white !important;
}

.custom-ai-platform .hero-section .lead {
    color: rgba(255, 255, 255, 0.9) !important;
}

.floating-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 2.5rem 2rem;
    border-radius: 30px;
    text-align: center;
    animation: float 6s ease-in-out infinite;
    position: relative;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    max-width: 400px;
    margin: 0 auto;
}

.floating-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 35px 70px rgba(0, 0, 0, 0.3);
}

.floating-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.15), rgba(139, 92, 246, 0.15));
    opacity: 0.6;
    z-index: -1;
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #60A5FA, #8B5CF6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(96, 165, 250, 0.3);
}

.card-icon i {
    font-size: 2.5rem;
    color: white;
}

.floating-card h5 {
    color: white;
    margin-bottom: 1rem;
    font-weight: 700;
    font-size: 1.5rem;
}

.floating-card p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.6;
}

.card-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    justify-content: center;
    margin-bottom: 2.2rem;
    align-items: center;
}

.feature-tag {
    background: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.95);
    padding: 0.5rem 1rem;
    border-radius: 18px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.25);
    transition: all 0.3s ease;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.feature-tag:hover {
    background: rgba(96, 165, 250, 0.2);
    border-color: rgba(96, 165, 250, 0.4);
    transform: translateY(-2px);
}

.feature-tag i {
    color: #60A5FA;
    margin-right: 0.4rem;
    font-size: 0.8rem;
}

.card-stats {
    display: flex;
    justify-content: space-around;
    gap: 2rem;
    margin-top: 2rem;
    padding-top: 1.8rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: #60A5FA;
    line-height: 1;
    margin-bottom: 0.4rem;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
}

.partners-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.partner-item {
    background: linear-gradient(135deg, rgba(100, 181, 246, 0.1), rgba(129, 199, 132, 0.1));
    border: 1px solid rgba(100, 181, 246, 0.3);
    color: rgba(255, 255, 255, 0.9);
    padding: 0.4rem 0.8rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 500;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.partner-item:hover {
    background: linear-gradient(135deg, rgba(100, 181, 246, 0.2), rgba(129, 199, 132, 0.2));
    border-color: rgba(100, 181, 246, 0.5);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(100, 181, 246, 0.2);
}



@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .process-timeline {
        flex-direction: column;
    }
    
    .process-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
    
    .product-card {
        margin-bottom: 2rem;
    }
    
    .navbar-nav {
        text-align: center;
        padding-top: 1rem;
    }
    
    .contact-form-card {
        padding: 2rem;
    }
    
    .floating-card {
        margin-top: 2rem;
    }
    
    .cases-images-stack {
        padding-right: 0;
        margin-bottom: 2rem;
    }
    
    .case-image-item:nth-child(1),
    .case-image-item:nth-child(2) {
        transform: none;
        margin-top: 0;
        margin-bottom: 1rem;
    }
    
    .case-image-item:hover {
        transform: translateY(-5px) scale(1.02);
    }
    
    .cooperation-info {
        padding-left: 0;
    }
    
    .cooperation-stats {
        justify-content: space-around;
        gap: 1rem;
    }
    
    .cooperation-stats .stat-number {
        font-size: 1.5rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .btn-lg {
        padding: 0.6rem 1.5rem;
        font-size: 1rem;
    }
    
    .product-card {
        padding: 2rem 1.5rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}

/* 加载动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 自定义滚动行为 */
html {
    scroll-behavior: smooth;
}

/* 链接样式 */
a {
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    text-decoration: none;
}

/* 表单样式 */
.form-control {
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #60A5FA;
    box-shadow: 0 0 0 0.2rem rgba(96, 165, 250, 0.25);
}

/* 背景装饰 */
.bg-pattern {
    background-image: 
        radial-gradient(circle at 25px 25px, rgba(96, 165, 250, 0.1) 2px, transparent 0),
        radial-gradient(circle at 75px 75px, rgba(139, 92, 246, 0.1) 2px, transparent 0);
    background-size: 100px 100px;
}

/* 微信弹窗样式 */
.qr-code-container {
    padding: 2rem;
    background: linear-gradient(135deg, #f8f9ff 0%, #e8f4fd 100%);
    border-radius: 15px;
    border: 2px dashed #07c160;
    position: relative;
    overflow: hidden;
}

.qr-code-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(7, 193, 96, 0.05) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

.qr-code-placeholder {
    position: relative;
    z-index: 1;
}

.qr-code-placeholder i {
    animation: bounce 2s ease-in-out infinite;
}

.qr-code-image {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.qr-code-image:hover {
    transform: scale(1.05);
}

.contact-info {
    background: rgba(255, 255, 255, 0.8);
    padding: 1.5rem;
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

.modal-content {
    border: none;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.modal-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.1;
    }
}

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

/* 卡片悬停效果 */
.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

/* 渐变文字 */
.gradient-text {
    background: linear-gradient(135deg, #60A5FA, #8B5CF6, #10B981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 加载状态 */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* 成功状态 */
.success {
    color: #10B981;
}

/* 错误状态 */
.error {
    color: #EF4444;
}

/* 警告状态 */
.warning {
    color: #F59E0B;
}

/* 信息状态 */
.info {
    color: #60A5FA;
}