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

body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #1F2329;
    overflow-x: hidden;
    font-size: 14px;
    scroll-behavior: smooth;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.2rem;
}

.logo-icon {
    font-size: 1.5rem;
    color: #1665FF;
    margin-right: 0.5rem;
}

.logo-image {
    height: 32px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-menu a {
    text-decoration: none;
    color: #1F2329;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    white-space: nowrap;
}

.nav-menu a:hover {
    color: #1665FF;
}

.nav-menu a.active {
    color: #1665FF;
    position: relative;
}

.nav-menu a.active::after {
    content: "";
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: #1665FF;
    border-radius: 1px;
}

.nav-phone {
    background: transparent;
    border: 1px solid #E5E7EB;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-phone:hover {
    background: #F9FAFB;
}

.nav-trial {
    background: #1665FF;
    color: white;
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-trial:hover {
    background: #0052D9;
}

.nav-phone-link, .nav-trial-link {
    text-decoration: none;
    border: 1px solid #E5E7EB;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: 1rem;
    color: #374151;
}
.nav-phone-link i {
    margin-right: 0.5rem;
}

/* ======= 导航 Free Trial 按钮：蓝底白字 ======= */
.nav-trial-link {
    background: #1665FF;
    color: #FFFFFF !important;
    border-color: #1665FF;
}

/* 去除 hover 变化，保持统一颜色 */
.nav-trial-link:hover,
.nav-trial-link:focus,
.nav-trial-link:active {
    background: #1665FF;
    color: #FFFFFF !important;
    border-color: #1665FF;
}

/* 主标题区域 - 新版全屏 */
.hero-section {
    height: 100vh;
    background: #FFFFFF; /* 改为纯白色 */
    color: #0D0F1A; /* 深色字体 */
    padding: 12rem 0 4rem; /* 增加顶部内边距，将内容往下移动 */
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    transform: translateY(0);
}

/* hero-bg-blobs 和 hero-canvas 已被新的背景效果取代，可以注释或删除 */
.hero-bg-blobs, .hero-canvas {
   display: none;
}

@keyframes float {
    0% {
        transform: translate(0, 0) scale(1) rotate(0deg);
        opacity: 0.6;
    }
    25% {
        transform: translate(30px, -40px) scale(1.1) rotate(15deg);
        opacity: 0.4;
    }
    50% {
        transform: translate(-10px, 20px) scale(0.95) rotate(-5deg);
        opacity: 0.7;
    }
    75% {
        transform: translate(20px, 10px) scale(1.05) rotate(10deg);
        opacity: 0.5;
    }
    100% {
        transform: translate(0, 0) scale(1) rotate(0deg);
        opacity: 0.6;
    }
}

/* 让视觉更简洁，隐藏深色 blob */
.blob {
    display: none;
}

.hero-container {
    position: relative;
    z-index: 1;
    text-shadow: none !important;
    margin-top: 4rem; /* 增加顶部外边距，进一步将内容往下移动 */
}

.hero-badge {
    display: inline-block;
    background: rgba(22, 101, 255, 0.1);
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 2rem;
    border: 1px solid rgba(22, 101, 255, 0.3);
    color: #1665FF;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    margin-top: 2rem; /* 增加顶部外边距 */
    color: #0D0F1A;
    text-shadow: none !important;
}

.highlight {
    color: #4D9FFF !important;
    -webkit-text-fill-color: #4D9FFF !important;
}

.hero-subtitle {
    font-size: 1rem;
    line-height: 1.6;
    color: #5A6A85;
    margin-top: 0.8rem;
    opacity: 0.8;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn-primary, .btn-secondary {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    border-radius: 8px;
}

.btn-primary {
    background: #1665FF;
    color: #FFFFFF;
    border: none;
    box-shadow: 0 2px 8px rgba(22, 101, 255, 0.25);
}

.btn-primary:hover {
    background: #0052D9;
    box-shadow: 0 4px 15px rgba(0, 82, 217, 0.35);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid #2F54EB; /* Main blue */
    color: #2F54EB;
    padding: 1rem 2.5rem; /* 与btn-primary一致 */
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: rgba(47,84,235,0.05);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.75rem;
}

.indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.indicator-dot.active {
    background: white;
    transform: scale(1.2);
}

/* 合作伙伴 */
.partners-section-wrapper {
    background: #0D0F1A; /* 与Hero区背景色一致 */
    padding-bottom: 3rem;
    margin-top: -1px; /* 消除可能的缝隙 */
}

.partners-section {
    background: transparent;
    padding: 3rem 0;
    text-align: center;
}

.partners-section-title {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 3rem;
    margin-top: 6rem; /* 增加顶部外边距，与主标题区域保持适当距离 */
    text-align: center;
    line-height: 1.6;
}

.partners-subtitle {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    font-weight: 400;
}

.partner-logo {
    opacity: 0.6;
    transition: opacity 0.3s ease;
}
.partner-logo:hover {
    opacity: 1;
}
.partner-logo span {
    color: rgba(255, 255, 255, 0.8);
}
.partner-logo i {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.5rem;
}

/* 横向滚动容器 */
.partners-wrapper {
    overflow: hidden;
    position: relative;
    width: 100%;
    margin: 0 auto;
}

.partners-track {
    display: inline-flex;
    align-items: center;
    gap: 4rem;
    animation: partners-scroll 40s linear infinite;
    white-space: nowrap;
}

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

/* 工作流程区域 */
.workflow-section {
    background: #F7F8FA;
    padding: 6rem 0;
    position: relative;
}

.architecture-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.workflow-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

/* 全局section样式优化 */
.section {
    padding: 60px 0; /* 设置默认上下间距 */
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    color: #1D2C48;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1rem;
    line-height: 1.6;
    color: #5A6A85;
    margin-bottom: 3rem;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

/* 应用场景特殊间距设置 */
#product-selector.section {
    padding: 40px 0 !important; /* 专门为应用场景减少间距 */
}

#product-selector .section-header {
    margin-bottom: 30px !important; /* 减少标题区域下方间距 */
}

/* 选择器卡片间距优化 */
.selector-grid {
    gap: 30px !important; /* 减少卡片间距 */
    margin-top: 20px !important; /* 减少顶部间距 */
}

.selector-card {
    padding: 30px 20px !important; /* 减少卡片内边距 */
}

/* 响应式间距调整 */
@media (max-width: 768px) {
    #product-selector.section {
        padding: 30px 0 !important; /* 移动端进一步减少间距 */
    }
    
    #product-selector .section-header {
        margin-bottom: 20px !important;
    }
    
    .selector-grid {
        gap: 20px !important;
        margin-top: 15px !important;
    }
}

/* 客户评价轮播UX增强 */
.testimonial-slider-container::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #1665FF, #4080FF);
    border-radius: 2px;
    animation: autoplay-progress 4s linear infinite;
}

@keyframes autoplay-progress {
    0% { width: 0; opacity: 0.7; }
    90% { width: 60px; opacity: 1; }
    100% { width: 60px; opacity: 0.3; }
}

.testimonial-card-v2 {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
    cursor: pointer !important;
}

.testimonial-card-v2:hover {
    transform: translateY(-8px) !important;
    box-shadow: 0 20px 60px rgba(22, 101, 255, 0.15) !important;
    border-color: #BEDAFF !important;
}

/* 导航按钮增强 */
.swiper-button-prev-test,
.swiper-button-next-test {
    width: 50px !important;
    height: 50px !important;
    border-radius: 50% !important;
    background: rgba(255, 255, 255, 0.9) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1) !important;
    transition: all 0.3s ease !important;
}

.swiper-button-prev-test:hover,
.swiper-button-next-test:hover {
    background: #1665FF !important;
    color: white !important;
    /* transform: scale(1.1) !important; */
    box-shadow: 0 6px 25px rgba(22, 101, 255, 0.3) !important;
}

/* 分页器增强 */
.swiper-pagination-test .swiper-pagination-bullet {
    width: 12px !important;
    height: 12px !important;
    background: rgba(22, 101, 255, 0.3) !important;
    transition: all 0.3s ease !important;
}

.swiper-pagination-test .swiper-pagination-bullet-active {
    background: #1665FF !important;
    transform: scale(1.2) !important;
}

/* 播放/暂停控制按钮 */
.autoplay-control {
    position: absolute;
    top: 20px;
    right: 10px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    z-index: 10;
}

.autoplay-control:hover {
    background: #1665FF;
    color: white;
    transform: scale(1.1);
    box-shadow: 0 4px 20px rgba(22, 101, 255, 0.3);
}

.autoplay-control i {
    font-size: 14px;
}

.autoplay-control.paused i::before {
    content: "\f04b"; /* play icon */
}

/* 关于我们区域成果数据展示 */
.about-achievements {
    margin-top: 40px;
    padding: 30px 0;
}

.achievement-items {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #f8faff 0%, #ffffff 100%);
    border-radius: 16px;
    padding: 30px 40px;
    box-shadow: 0 8px 32px rgba(22, 101, 255, 0.1);
    border: 1px solid rgba(22, 101, 255, 0.1);
    transition: all 0.3s ease;
}

.achievement-items:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(22, 101, 255, 0.15);
}

.achievement-item {
    text-align: center;
    flex: 1;
}

.achievement-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1665FF;
    margin-bottom: 8px;
    font-family: 'Inter', sans-serif;
    line-height: 1;
    transition: all 0.3s ease;
    cursor: pointer;
}

.achievement-item:hover .achievement-number {
    transform: scale(1.1);
    text-shadow: 0 4px 20px rgba(22, 101, 255, 0.3);
}

.achievement-item:hover .achievement-label {
    color: #1665FF;
    font-weight: 600;
}

.achievement-label {
    font-size: 0.95rem;
    color: #4E5969;
    font-weight: 500;
    line-height: 1.2;
}

.achievement-divider {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, transparent, rgba(22, 101, 255, 0.3), transparent);
    margin: 0 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .about-achievements {
        margin-top: 30px;
        padding: 20px 0;
    }
    
    .achievement-items {
        flex-direction: column;
        gap: 25px;
        padding: 25px 20px;
    }
    
    .achievement-divider {
        width: 80px;
        height: 1px;
        background: linear-gradient(to right, transparent, rgba(22, 101, 255, 0.3), transparent);
        margin: 0;
    }
    
    .achievement-number {
        font-size: 2.2rem;
    }
    
    .achievement-label {
        font-size: 0.9rem;
    }
}

.workflow-steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 4rem;
}

.workflow-step {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    text-align: center;
    max-width: 250px;
    transition: transform 0.3s ease;
    border: 1px solid #E4E6EA;
}

.workflow-step:hover {
    transform: translateY(-5px);
}

.workflow-step.main-step {
    transform: scale(1.1);
    border: 2px solid #1665FF;
}

.step-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1F2329;
}

.step-interface {
    background: #F7F8FA;
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid #E4E6EA;
}

.interface-header {
    padding: 0.5rem;
    font-weight: 600;
    color: #374151;
}

.interface-tabs {
    display: flex;
    gap: 0.5rem;
    margin: 0.5rem 0;
}

.tab {
    padding: 0.3rem 0.8rem;
    border-radius: 6px;
    font-size: 0.8rem;
    background: #E5E7EB;
    color: #6B7280;
}

.tab.active {
    background: #1665FF;
    color: white;
}

.interface-content {
    padding: 1rem 0;
}

.query-example {
    background: white;
    padding: 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
    color: #374151;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.query-example i {
    color: #1665FF;
    font-size: 0.8rem;
}

.workflow-arrow {
    font-size: 2rem;
    color: #1665FF;
    font-weight: bold;
}

/* 功能区域 */
.features-section {
    padding: 6rem 2rem;
    background: #FFFFFF;
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.feature-card {
    background: #F9FAFB;
    padding: 2.5rem 2rem;
    border-radius: 12px;
    border: 1px solid #F3F4F6;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.07);
}

.feature-icon {
    font-size: 2.5rem;
    color: #1665FF;
    margin-bottom: 1.5rem;
}

.feature-card h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.feature-card p {
    color: #6B7280;
    line-height: 1.7;
}

/* 定价方案 */
.pricing-section {
    padding: 6rem 2rem;
    background: #F9FAFB;
}

.pricing-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
    align-items: center;
}

.pricing-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid #E5E7EB;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card.featured {
    transform: scale(1.05);
    border: 2px solid #1665FF;
}

.featured-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(45deg, #FFD700, #FFA500);
    color: #1F2937;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 700;
}

.pricing-header {
    border-bottom: 1px solid #F3F4F6;
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
}

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1665FF;
}

.price span:first-child {
    font-size: 1.5rem;
    font-weight: 500;
    margin-right: 0.2rem;
}

.price span:last-child {
    font-size: 1rem;
    font-weight: 400;
    color: #6B7280;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
}

.pricing-features li {
    margin-bottom: 1rem;
    color: #374151;
}

.pricing-features i {
    margin-right: 0.8rem;
    width: 20px;
    text-align: center;
}

.pricing-features li .fa-check { color: #10B981; }
.pricing-features li .fa-times { color: #EF4444; }

.btn-primary-pricing, .btn-secondary-pricing {
    display: block;
    width: 100%;
    text-align: center;
    padding: 1rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-primary-pricing {
    background: #1665FF;
    color: white;
}

.btn-primary-pricing:hover {
    background: #0052D9;
}

.btn-secondary-pricing {
    background: #F3F4F6;
    color: #374151;
}

.btn-secondary-pricing:hover {
    background: #E5E7EB;
}

/* 关于我们 */
.about-section {
    padding: 6rem 2rem;
    background: linear-gradient(180deg, #F4F8FF 0%, #FFFFFF 100%);
}

.about-container {
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
    background: #FFFFFF;
    border-radius: 16px;
    padding: 4rem 3rem;
    box-shadow: 0 12px 24px rgba(0,0,0,0.05);
}

/* 标题下蓝色分隔线 */
.about-section .section-title {
    position: relative;
    display: inline-block;
    padding-bottom: 0.5rem;
}

.about-section .section-title::after {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
    width: 60px;
    height: 3px;
    background: #1665FF;
    border-radius: 2px;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 500px;
    gap: 3rem;
    text-align: left;
    align-items: center;
    margin-top: 3rem;
}

.about-text p {
    font-size: 1.05rem;
    color: #4B5563;
    line-height: 1.8;
    margin-bottom: 1.3rem;
}

.about-text strong {
    color: #1665FF;
}

.about-image img {
    width: 100%;
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.about-image {
    position: relative;
}

.about-image::before {
    content: "";
    position: absolute;
    top: 12px;
    left: 12px;
    right: -12px;
    bottom: -12px;
    border-radius: 16px;
    background: rgba(22,101,255,0.08);
    z-index: -1;
}

@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    .about-container {
        padding: 3rem 1.5rem;
    }
    .about-image::before {
        display: none;
    }
}

/* 响应式调整 */
@media (max-width: 992px) {
    .pricing-card.featured {
        transform: scale(1);
    }
}

@media (max-width: 768px) {
    .nav-phone-link { display: none; }
    .features-grid, .pricing-grid, .about-content {
        grid-template-columns: 1fr;
    }
}

/* 页脚 */
.footer {
    background: #1F1F1F;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.footer-logo .logo-image {
    height: 36px;
}

.footer-desc {
    max-width: 350px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-contact h4 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1rem 0;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.contact-item:hover {
    opacity: 1;
}

.contact-item i {
    color: #1665FF;
    margin-right: 1rem;
}

.footer-bottom {
    margin-top: 2rem;
    padding-top: 2rem;
    text-align: center;
}

.footer-links {
    color: #6B7280;
    font-size: 0.9rem;
}

.footer-links span {
    display: inline-block;
    margin: 0 1rem;
    line-height: 25px;
}
.footer-links span img {
    position: relative;
    top: 4px;
}


/* ========== Hero Advantages ========== */
.hero-advantages {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
    margin-top: 0.5rem; /* 顶部留白 */
}

/* 文本优势列表 */
.advantages-list {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
        justify-content: center;
    }

.adv-text {
    position: relative;
    font-size: 1rem;
    color: #374151;
    cursor: default;
    transition: color 0.2s ease;
}

.adv-text:hover {
    color: #1665FF;
}

.adv-text::after {
    content: attr(data-detail);
    position: absolute;
    bottom: -2.4rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.85);
    color: #FFFFFF;
    padding: 0.45rem 0.75rem;
    font-size: 0.8rem;
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 10;
}

.adv-text:hover::after {
    opacity: 1;
}

@media (max-width: 768px) {
    .hero-advantages {
        flex-direction: column;
        align-items: center;
    }
    .adv-item {
        width: 90%;
    }
}
/* ========== End Hero Advantages ========== */

/* Hero actions CTA */
.hero-actions {
    display: flex;
        gap: 1rem;
    justify-content: center;
    margin-top: 1rem;
}

.btn-outline-doc {
    background: #FFFFFF;
    border: 1px solid #D1D5DB;
    color: #374151;
    padding: 1rem 2.5rem; /* 与 btn-primary 一致 */
    font-size: 1rem;      /* 与 btn-primary 一致 */
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.btn-outline-doc:hover {
    background: #F9FAFB;
}

/* Hero CTA 按钮统一宽度 */
.hero-actions .btn-primary,
.hero-actions .btn-outline-doc {
    min-width: 180px; /* 可根据需求适当调整 */
    text-align: center;
}


/* --- 移动端适配 --- */
.nav-toggle {
        display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #1F2329;
}

/* 小于 992px 的屏幕 (平板) */
@media (max-width: 992px) {
    .nav-container {
        padding: 0 1.5rem;
    }
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #fff;
        flex-direction: column;
        padding: 1rem 0;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }
    .nav-menu.active {
        display: flex;
    }
    .nav-menu a {
        padding: 1rem 1.5rem;
        width: 100%;
        text-align: center;
        font-size: 1rem;
    }
    .nav-toggle {
        display: block;
}

    .hero-title {
        font-size: 3rem;
    }
    
    .architecture-section .section-title {
        font-size: 1.8rem;
    }

    .why-choose-us-content {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
    }

    .features-list-wrapper, .product-image-wrapper {
        max-width: 500px;
        width: 100%;
    }
}

/* 小于 768px 的屏幕 (大型手机) */
@media (max-width: 768px) {
    body {
        font-size: 14px;
    }

    .why-choose-us-section {
        padding: 4rem 1.5rem;
    }

    .why-choose-us-section .section-main-title {
        font-size: 2rem;
        line-height: 1.4;
    }

    .section-title {
        font-size: 1.6rem;
    }

    /* 应用场景区域间距优化 */
    #product-selector.section {
        padding: 40px 0 !important;
    }

    #product-selector .section-header {
        margin-bottom: 30px !important;
    }

    .hero-title {
        font-size: 2.5rem;
        line-height: 1.3;
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .hero-advantages {
        display: none;
    }
    .partners-track {
        animation-duration: 40s;
    }
.asktable-diagram {
        flex-direction: column;
        gap: 1.5rem; /* 调整垂直间距 */
        padding: 0 1rem; /* 增加内边距 */
    }
    .diagram-arrow-group {
        transform: rotate(90deg);
        margin: 1.5rem 0; /* 调整箭头边距 */
        width: 50px; /* 给箭头一个固定宽度 */
    }
    .arrow-text {
        font-size: 0.8rem; /* 缩小箭头文字 */
        min-width: 100px; /* 确保文字不换行 */
    }

    .why-choose-us-content {
        flex-direction: column;
        gap: 2rem;
    }
    .features-list-wrapper, .product-image-wrapper {
        width: 100%;
        max-width: none;
    }
    .cases-track {
        grid-auto-columns: 80%;
    }
    .footer-content {
        flex-direction: column;
    text-align: center;
}
    .footer-contact {
        align-items: center;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
    }
    .chat-mockup {
        transform: scale(0.9);
        transform-origin: top center;
    }

    .news-layout-wrapper {
        flex-direction: column;
        gap: 2rem;
        padding: 0 1.5rem; /* Add horizontal padding to narrow the cards */
    }

    .testimonials-section {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    /* === Footer Alignment Fix Start === */
    .footer-content {
        flex-direction: column;
        align-items: center; /* Center all items inside the main footer container */
        text-align: center;
        gap: 2.5rem;
    }

    .footer-logo, .footer-contact, .footer-bottom {
        display: flex;
        flex-direction: column;
        align-items: center; /* Ensure content within each block is centered */
    }

    .footer-bottom {
        gap: 1.5rem;
    }
    
    .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    }
    /* === Footer Alignment Fix End === */

    /* === Scenes Section Fix === */
    .scenes-section {
        padding: 4rem 1rem; /* Reduce vertical padding */
    }
    .scene-switcher-container {
        flex-direction: column;
        gap: 2rem;
    }
    .scene-visual-carousel {
        order: -1; /* Move image to the top */
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }
    /* === End Fix === */

    /* 行业数据统计 */
    .industry-stats-section {
        padding: 5rem 0;
        background: linear-gradient(135deg, #E8F2FF 0%, #F0F8FF 100%);
        position: relative;
        overflow: hidden;
    }

    .industry-stats-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="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23E3F2FD" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
        opacity: 0.3;
    }

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

    .stats-header {
        text-align: center;
        margin-bottom: 4rem;
    }

    .stats-title {
        font-size: 2.2rem;
        font-weight: 700;
        color: #1F2329;
        line-height: 1.3;
        max-width: 900px;
        margin: 0 auto;
    }

    .industry-logos {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 3rem;
        margin-bottom: 4rem;
        flex-wrap: wrap;
    }

    .industry-logo-item {
        height: 60px;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 1rem;
        background: rgba(255, 255, 255, 0.8);
        border-radius: 12px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        transition: all 0.3s ease;
        backdrop-filter: blur(10px);
    }

    .industry-logo-item:hover {
        transform: translateY(-4px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    }

    .industry-logo-item img {
        max-height: 40px;
        max-width: 120px;
        object-fit: contain;
        filter: grayscale(0);
        transition: filter 0.3s ease;
    }

    .featured-quote {
        background: white;
        border-radius: 20px;
        padding: 3rem;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
        margin-bottom: 3rem;
        position: relative;
    }

    .featured-quote::before {
        content: '"';
        position: absolute;
        top: -10px;
        left: 30px;
        font-size: 4rem;
        color: #1665FF;
        font-family: serif;
        line-height: 1;
    }

    .quote-text {
        font-size: 1.3rem;
        color: #374151;
        line-height: 1.6;
        text-align: center;
        margin-bottom: 2rem;
        font-style: italic;
    }

    .case-study-card {
        display: flex;
        align-items: center;
        gap: 1.5rem;
        background: #F8FAFC;
        border-radius: 12px;
        padding: 1.5rem;
        border-left: 4px solid #1665FF;
    }

    .case-icon {
        flex-shrink: 0;
        width: 60px;
        height: 60px;
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    .case-icon img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .case-details {
        flex: 1;
    }

    .case-title {
        font-size: 1.1rem;
        font-weight: 600;
        color: #1F2329;
        margin-bottom: 0.5rem;
    }

    .case-description {
        color: #6B7280;
        font-size: 0.95rem;
        line-height: 1.5;
        margin-bottom: 0.5rem;
    }

    .case-link {
        color: #1665FF;
        text-decoration: none;
        font-weight: 500;
        font-size: 0.9rem;
        transition: color 0.3s ease;
    }

    .case-link:hover {
        color: #0052D9;
    }

    .analysis-highlight {
        display: flex;
        align-items: flex-start;
        gap: 1.5rem;
        background: rgba(255, 255, 255, 0.9);
        border-radius: 16px;
        padding: 2rem;
        border: 1px solid rgba(22, 101, 255, 0.1);
    }

    .highlight-icon {
        font-size: 2rem;
        background: linear-gradient(135deg, #1665FF, #0052D9);
        background-clip: text;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        flex-shrink: 0;
    }

    .highlight-content {
        flex: 1;
    }

    .highlight-title {
        font-size: 1.2rem;
        font-weight: 600;
        color: #1F2329;
        margin-bottom: 0.5rem;
    }

    .highlight-text {
        color: #6B7280;
        line-height: 1.6;
        font-size: 0.95rem;
    }

    /* === Ecosystem Section Fix === */
    .ecosystem-section {
        padding: 4rem 1rem;
    }
    .ecosystem-section .section-title {
        font-size: 2rem;
        line-height: 1.3;
    }
    .logo-grid-container {
        padding: 2rem 1rem;
        overflow-x: visible; /* No scroll needed for a wrapped grid */
    }
    .logo-grid {
        display: grid; /* Use Grid for perfect alignment */
        grid-template-columns: repeat(2, 1fr); /* 2 columns for all mobile */
        gap: 1rem;
    }
    .logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
        min-height: 80px; /* Ensure consistent height */
    padding: 1rem;
    }
    /* === End Fix === */

    /* === Customer Cases Final Polish (Replaces all previous .cases-* rules) === */
    .cases-section {
        padding: 4rem 0;
    }
    .cases-carousel-wrapper {
    position: relative;
        max-width: 1200px;
        margin: 0 auto;
        overflow: hidden; /* 裁剪所有超出容器的内容 */
}
    .cases-track {
    display: flex;
        gap: 30px;
        position: relative;
        transition: transform 0.5s cubic-bezier(0.645, 0.045, 0.355, 1);
    }
    .cases-track::-webkit-scrollbar { display: none; }
    .case-slide {
        flex-shrink: 0;
        width: 650px;
        opacity: 1;
        transform: none;
        pointer-events: auto;
    }
    .case-nav-arrow.prev { left: 20px; }
    .case-nav-arrow.next { right: 20px; }
    /* === End Polish === */

}

/* 小于 480px 的屏幕 (小型手机) */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .why-choose-us-section .section-main-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }
    .hero-actions {
    flex-direction: column;
        gap: 1rem;
    }
    .btn-outline-doc, .hero-actions .btn-primary {
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
    }
    .partners-subtitle {
    font-size: 0.9rem;
    }
    .partner-logo {
        font-size: 0.8rem;
    }
     .partner-logo i {
        font-size: 1.5rem;
    }
    .section-title {
        font-size: 1.5rem;
    }
    .why-choose-us-section .section-main-title {
    font-size: 1.8rem;
    }

    .chat-mockup {
        transform: scale(0.85);
    }

    .message-bubble p, .ai-bubble ul {
        font-size: 0.85rem;
    }

    .ai-bubble .ai-title {
        font-size: 1rem;
    }

    .cases-tabs {
        flex-wrap: wrap;
    justify-content: center;
    }
}

/* === Architecture Diagram Fix Start === */
.diagram-scroll-wrapper {
    overflow-x: visible;
}

.asktable-diagram {
    flex-direction: column;
    min-width: 0; /* Override desktop min-width */
    gap: 2rem;
    padding: 0;
    align-items: center;
}

.diagram-block {
    width: 90%;
    max-width: 350px;
}

.diagram-arrow-group {
    transform: rotate(90deg);
    margin: 2rem auto;
    width: 50px;
}

.architecture-section [data-aos="fade-right"],
.architecture-section [data-aos="fade-left"] {
    transform: none; /* Use fade-in instead of slide-in */
}
/* === Architecture Diagram Fix End === */

.why-choose-us-content {
    flex-direction: column;
    gap: 2rem;
}

.cases-section {
    background-color: #F9FAFB;
    padding: 80px 20px;
}

.cases-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.case-tab {
    padding: 10px 20px;
    border: 1px solid #D1D5DB;
    border-radius: 20px;
    background-color: #FFFFFF;
    color: #4B5563;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.case-tab:hover {
    border-color: #9CA3AF;
    color: #1F2937;
}

.case-tab.active {
    background-color: #1665FF;
    border-color: #1665FF;
    color: #FFFFFF;
}

.cases-carousel-wrapper {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
}

.cases-carousel {
    overflow: hidden;
}

.cases-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.case-slide {
    flex-shrink: 0;
    width: 100%;
    background-color: #FFFFFF;
    border: 1px solid #E5E6EB;
    border-radius: 16px;
    padding: 40px;
    display: flex;
    flex-direction: column;
}

.slide-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.slide-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1D2129;
}

.slide-logo {
    max-height: 32px;
}

.slide-features {
    list-style: none;
    padding: 0;
    margin: 0 0 30px 0;
    flex-grow: 1;
}

.slide-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: #4E5969;
    line-height: 1.7;
}

.slide-features li + li {
    margin-top: 15px;
}

.slide-features .fa-check-circle {
    color: #1665FF;
    margin-top: 5px;
}

.slide-bottom-icon {
    text-align: right;
    font-size: 1.8rem;
    color: #D1D5DB;
}

/* "如何工作" 架构图移动端优化 */
@media (max-width: 768px) {
    .asktable-diagram {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    .diagram-arrow-group {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
    .diagram-block,
    .processing-main,
    .processing-bottom {
        width: 100%;
        max-width: 350px; /* 限制一个最大宽度，避免在平板上过宽 */
    }
    .processing-main {
        padding: 1rem;
    }
}

/* 移除之前所有 desktop-mode 和 mobile-mode 的媒体查询 */

.scenes-section {
    padding: 100px 20px;
    background-color: #FFFFFF;
}

.scenes-container {
    max-width: 1100px;
    margin: 0 auto;
    background-color: #F7F9FC;
    border-radius: 20px;
    padding: 60px;
    overflow: hidden;
}

.scene-switcher-container {
    display: flex;
    gap: 50px;
    align-items: flex-start;
}

.scenes-tabs-switcher {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.scene-tab {
    padding: 20px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    font-weight: 500;
}

.scene-tab:hover {
    background-color: #FFFFFF;
    border-color: #E5E6EB;
}

.scene-tab.active {
    background-color: #FFFFFF;
    border-color: #1665FF;
    box-shadow: 0 5px 20px rgba(22, 101, 255, 0.1);
}

.scene-content-display {
    padding-top: 10px;
    flex: 1.5;
}

.scene-content-item {
    display: none;
}

.scene-content-item.active {
    display: block;
}

.scene-content-item p {
    color: #4E5969;
    line-height: 1.8;
    margin-bottom: 20px;
}

.scene-link {
    color: #1665FF;
    font-weight: 500;
    text-decoration: none;
}

.scene-link i {
    margin-left: 5px;
    transition: transform 0.2s ease;
}

.scene-link:hover i {
    transform: translateX(3px);
}

.scene-visual-carousel {
    flex: 1.5;
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 4 / 3;
}

.scenes-track {
    display: flex;
    height: 100%;
    transition: transform 0.5s ease;
}

.scene-visual-item {
    flex-shrink: 0;
    width: 100%;
    height: 100%;
}

.scene-visual-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.scene-nav-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.7);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1D2129;
    transition: all 0.3s ease;
    z-index: 10;
}

.scene-nav-arrow:hover {
    background: #FFFFFF;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.scene-nav-arrow.prev {
    left: 15px;
}

.scene-nav-arrow.next {
    right: 15px;
}

/* News Section */
.news-section {
    padding: 20px 20px; /* 减少模块间距 */
    background: #fff;
}
.section-header {
    text-align: center;
    margin-bottom: 30px; /* 统一间距 */
}
.news-layout-wrapper {
    display: flex;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}
.news-list-column {
    flex: 2;
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.promo-card-column {
    flex: 1;
    min-width: 300px;
}
.news-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border: 1px solid #E5E6EB;
    border-radius: 12px;
}
.news-item-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1D2129;
    margin-bottom: 8px;
}
.news-item-content p {
    color: #86909C;
    line-height: 1.6;
}
.news-item-link {
    font-size: 1.2rem;
    color: #9CA3AF;
}

/* Testimonials Section */
.testimonials-section {
    padding: 20px 20px; /* 减少模块间距 */
    background-color: #F9FAFB;
}
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}
.testimonial-card {
    background-color: #FFFFFF;
    padding: 40px;
    border-radius: 16px;
    border: 1px solid #E5E6EB;
}
.quote-icon {
    font-size: 3rem;
    color: #1665FF;
    opacity: 0.3;
}
.testimonial-card h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 15px 0;
}
.author {
    font-weight: 500;
    color: #4B5563;
    margin-bottom: 15px;
}
.details {
    color: #6B7280;
    line-height: 1.8;
}

/* Ecosystem Section */
.ecosystem-section {
    padding: 20px 20px; /* 减少模块间距 */
    background-color: #FFFFFF;
}
.logo-grid-container {
    max-width: 1200px;
    margin: 0 auto;
}
.logo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 40px;
    align-items: center;
    justify-items: center;
}
.logo-item img {
    max-height: 40px;
    max-width: 120px;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all 0.3s ease;
}
.logo-item:hover img {
    filter: grayscale(0);
    opacity: 1;
}

/* CTA Section */
.cta-section {
    padding: 40px 20px; /* 统一间距 */
    background-color: #F7F9FC;
}
.form-container {
    max-width: 800px;
    margin: 0 auto;
    background-color: #FFFFFF;
    padding: 50px;
    border-radius: 16px;
    border: 1px solid #E5E6EB;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.form-group {
    display: flex;
    flex-direction: column;
}
.form-group.full-width {
    grid-column: 1 / -1;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #D1D5DB;
    border-radius: 8px;
    font-size: 1rem;
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #1665FF;
    box-shadow: 0 0 0 2px rgba(22, 101, 255, 0.2);
}
.submit-button {
    width: 100%;
    padding: 15px;
    background-color: #1665FF;
    color: #FFFFFF;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}
.submit-button:hover {
    background-color: #004AD9;
}

/* Footer Styles */
.footer {
    background-color: #1D2129;
    color: #AEB9C8;
    padding: 60px 20px 20px 20px;
}
.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}
.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
    padding-bottom: 50px;
    border-bottom: 1px solid #4E5969;
}
.footer-main {
    flex: 1;
}
.footer-logo .logo-image {
    max-height: 32px;
    filter: brightness(0) invert(1); /* Make logo white */
}
.footer-desc {
    margin-top: 20px;
    font-size: 0.9rem;
    line-height: 1.7;
    color: #ADB5BD;
    max-width: 350px;
}
.footer-contact {
    flex: 1;
}
.footer-contact h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 25px;
    color: #FFFFFF;
}
.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: #ADB5BD;
}
.contact-item i {
    margin-right: 12px;
    margin-top: 4px;
    color: #86909C;
    width: 16px;
    text-align: center;
}
.footer-bottom {
    text-align: center;
    font-size: 0.85rem;
    color: #86909C;
}
.footer-links span {
    margin: 0 10px;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
}

/* Why Choose Us Section */
.why-choose-us-section {
    padding: 80px 20px;
    background-color: #F7F9FC;
}
.why-choose-us-header {
    text-align: center;
    margin-bottom: 60px;
}
.why-choose-us-header .section-subtitle {
    color: #4E5969;
    margin-bottom: 1rem;
}
.why-choose-us-header .section-title {
    margin-bottom: 2rem;
}
.why-choose-us-header .cta-button {
    display: inline-block;
    background-color: transparent;
    color: #1665FF;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid #1665FF;
    text-decoration: none;
}
.why-choose-us-header .cta-button:hover {
    background-color: #1665FF;
    color: #fff;
}
.feature-item {
    background-color: #fff;
    padding: 25px;
    border-radius: 12px;
    border: 1px solid #E5E6EB;
    box-shadow: 0 4px 20px rgba(22, 101, 255, 0.03);
}
.feature-item h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1D2129;
    margin-bottom: 10px;
}
.feature-item p {
    color: #86909C;
    line-height: 1.7;
    font-size: 0.95rem;
    margin: 0;
}

/* === 应用场景 V2 (新设计) === */
.scenes-section-v2 {
    padding: 80px 20px;
    background-color: #F7F9FC; /* Use a light grey-blue background */
}

.scenes-section-v2 .section-title {
    margin-bottom: 20px;
}

.scenes-section-v2 .section-subtitle {
    margin-bottom: 60px;
}

.scenes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.scene-card {
    background-color: #FFFFFF;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 33, 89, 0.05);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    border: 1px solid #E5E6EB;
    display: flex;
    flex-direction: column;
}

.scene-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 28px rgba(0, 33, 89, 0.1);
    border-color: #BEDAFF;
}

.scene-card-image-wrapper {
    position: relative;
    height: 220px;
}

.scene-card-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.scene-card-icon {
    position: absolute;
    bottom: -25px;
    right: 20px;
    width: 50px;
    height: 50px;
    background-color: #1665FF;
    color: #FFFFFF;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border: 3px solid #FFFFFF;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.scene-card-content {
    padding: 30px;
    padding-top: 40px; /* Space for the overlapping icon */
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.scene-card-content h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1D2129;
    margin-bottom: 12px;
}

.scene-card-content p {
    font-size: 1rem;
    color: #4E5969;
    line-height: 1.7;
    flex-grow: 1;
    margin-bottom: 25px;
}

.scene-link {
    font-weight: 600;
    color: #1665FF;
    text-decoration: none;
    transition: color 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.scene-link i {
    transition: transform 0.3s ease;
}

.scene-link:hover {
    color: #004AD9;
}

.scene-link:hover i {
    transform: translateX(4px);
}

/* 移动端适配 */
@media (max-width: 992px) {
    .scenes-grid {
        grid-template-columns: 1fr;
    }
}

/* === 客户案例 V3 (Blue/White Redesign) === */
.cases-section-v3 {
    position: relative;
    background-color: #E8F1FF; /* Fallback background */
    background-image: linear-gradient(135deg, #E8F1FF 0%, #F0F7FF 100%);
    padding: 80px 0; /* Vertical padding, horizontal handled by children */
    overflow: hidden;
}

/* Add the particle background from hero section */
.cases-section-v3::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23A8C5FF' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    animation: subtle-scroll 60s linear infinite;
    z-index: 1;
}

@keyframes subtle-scroll {
    from { background-position: 0 0; }
    to { background-position: -300px -300px; }
}

.cases-section-v3 .container {
    position: relative;
    z-index: 2;
}

.cases-section-v3 .section-title {
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1D2129;
}

.cases-section-v3 .section-subtitle {
    margin-bottom: 50px;
    color: #4E5969;
}

.cases-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 50px;
    /* Removed background bar */
}

.case-tab {
    padding: 8px 20px;
    border-radius: 20px;
    border: 1.5px solid #FFFFFF;
    background-color: rgba(255, 255, 255, 0.7);
    color: #4E5969;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px); /* Glassmorphism effect */
}

.case-tab:hover {
    background-color: #FFFFFF;
    color: #FF7D00;
}

.case-tab.active {
    background-color: #FF7D00;
    border-color: #FF7D00;
    color: #fff;
    box-shadow: 0 4px 15px rgba(255, 125, 0, 0.3);
}

.cases-carousel-wrapper {
    position: relative;
    width: 100%;
    height: 380px; /* Set a fixed height for the container */
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-nav-arrow {
    background-color: transparent;
    border: none;
    color: #86909C;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
}

.case-nav-arrow:hover {
    color: #1665FF;
}

.case-nav-arrow.prev {
    left: calc(50% - 450px);
}

.case-nav-arrow.next {
    right: calc(50% - 450px);
}

.cases-carousel {
    width: 100%;
    height: 100%;
    position: relative;
    perspective: 1500px; /* Add perspective for 3D effect */
}

.cases-track {
    display: flex;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: center;
    transform-style: preserve-3d; /* Enable 3D transformations */
    transition: transform 0.6s cubic-bezier(0.77, 0, 0.175, 1);
}

.case-slide {
    position: absolute;
    left: calc(50% - 225px); /* Center the slides */
    flex: 0 0 450px;
    width: 450px;
    height: auto;
    background-color: #FFFFFF;
    border-radius: 16px;
    padding: 30px 35px;
    box-shadow: 0 10px 40px rgba(0, 33, 89, 0.1);
    transition: all 0.6s cubic-bezier(0.77, 0, 0.175, 1);
    opacity: 0;
    transform: translateX(-50%) scale(0.7); /* Start scaled down and off-screen */
}

.case-slide.active {
    opacity: 1;
    transform: translateX(0) scale(1);
    z-index: 10;
}

.case-slide.prev {
    opacity: 0.7;
    transform: translateX(-350px) scale(0.85);
    z-index: 5;
}

.case-slide.next {
    opacity: 0.7;
    transform: translateX(350px) scale(0.85);
    z-index: 5;
}

.slide-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.slide-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1D2129;
    flex-grow: 1;
}

.slide-logo-container {
    flex-shrink: 0;
    margin-left: 20px;
}

.slide-logo {
    max-height: 24px;
    max-width: 100px;
    opacity: 0.8;
}

.slide-body p {
    font-size: 0.95rem;
    line-height: 1.8;
    color: #4E5969;
}

.slide-body p + p {
    margin-top: 15px;
}

.slide-body strong {
    color: #1665FF;
    font-weight: 600;
}

.slide-bottom-icon-wrapper {
    position: absolute;
    bottom: 25px;
    right: 35px;
}

.custom-logo-icon {
    font-size: 2.5rem;
    color: #EAF1FF;
}

@media (max-width: 992px) {
    .case-nav-arrow.prev { left: 20px; }
    .case-nav-arrow.next { right: 20px; }
    .case-slide.prev { transform: translateX(-250px) scale(0.8); }
    .case-slide.next { transform: translateX(250px) scale(0.8); }
}
@media (max-width: 768px) {
    .cases-carousel-wrapper { height: auto; padding: 0 50px; }
    .cases-track { position: static; transform-style: flat; transition: transform 0.5s ease; }
    .case-slide { position: static; flex: 0 0 90%; transform: none !important; opacity: 1 !important; margin: 0 5%; }
    .cases-track { /* This reverts to the old scrolling behavior for simplicity on mobile */
        justify-content: flex-start; 
        transform: translateX(var(--mobile-translate-x, 0));
    }
}

/* === 客户评价 V2 === */
.testimonials-section {
    padding: 80px 20px;
    background-color: #F7F9FC;
}
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}
.testimonial-card {
    background-color: #FFFFFF;
    border: 1px solid #E5E6EB;
    border-radius: 12px;
    padding: 35px;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
}
.testimonial-card:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 12px 40px rgba(0, 33, 89, 0.08);
}
.quote-icon {
    position: absolute;
    top: 25px;
    right: 30px;
    font-size: 4rem;
    color: #EAF1FF;
    font-family: Georgia, serif;
}
.testimonial-card h4 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1D2129;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #F2F3F5;
}
.testimonial-card .author {
    font-size: 1rem;
    font-weight: 500;
    color: #4E5969;
    margin: 0 0 8px 0;
}
.testimonial-card .details {
    font-size: 1rem;
    color: #86909C;
    line-height: 1.8;
}

@media (max-width: 992px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

/* === 定价方案 V2 === */
.pricing-section {
    padding: 80px 20px;
    background-color: #FFFFFF;
}
.pricing-container {
    max-width: 1200px;
    margin: 0 auto;
}
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    align-items: center; /* Align cards vertically */
}
.pricing-card {
    background-color: #FFFFFF;
    border: 1px solid #E5E6EB;
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s ease;
}
.pricing-card.featured {
    transform: scale(1.05);
    border-color: #1665FF;
    box-shadow: 0 10px 40px rgba(22, 101, 255, 0.1);
}
.pricing-card:not(.featured):hover {
     transform: translateY(-8px);
}
.featured-badge {
    display: inline-block;
    background-color: #FF7D00;
    color: #FFFFFF;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 20px;
}
.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1D2129;
    margin-bottom: 12px;
}
.pricing-header .price {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1D2129;
    margin-bottom: 30px;
}
.pricing-header .price span:first-child {
    font-size: 1.5rem;
    font-weight: 500;
    margin-right: 4px;
}
.pricing-header .price span:last-child {
    font-size: 1rem;
    font-weight: 400;
    color: #86909C;
}
.pricing-card.featured .pricing-header .price {
    color: #1665FF;
}
.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 40px 0;
    text-align: left;
}
.pricing-features li {
    margin-bottom: 15px;
    color: #4E5969;
    display: flex;
    align-items: center;
}
.pricing-features li .fas {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}
.pricing-features li .fa-check {
    color: #00B42A;
}
.pricing-features li .fa-times {
    color: #F53F3F;
}
.btn-primary-pricing, .btn-secondary-pricing {
    display: block;
    width: 100%;
    padding: 14px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
}
.btn-primary-pricing {
    background-color: #1665FF;
    color: #FFFFFF;
    border: 1px solid #1665FF;
}
.btn-secondary-pricing {
    background-color: #FFFFFF;
    color: #1D2129;
    border: 1px solid #C9CDD4;
}

@media (max-width: 992px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .pricing-card.featured {
        transform: scale(1); /* Disable scaling on mobile stack */
    }
}

/* === 合作伙伴生态 V2 === */
.ecosystem-section {
    padding: 80px 20px;
    background-color: #F7F9FC;
}
.ecosystem-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}
.ecosystem-container .section-subtitle {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.logo-grid-container {
    margin-top: 60px;
}
.logo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
    align-items: center;
}
.logo-item {
    background-color: #FFFFFF;
    padding: 20px;
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 80px;
    border: 1px solid #E5E6EB;
    transition: all 0.3s ease;
}
.logo-item:hover {
    transform: scale(1.05) translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 33, 89, 0.07);
    border-color: #FFFFFF;
}
.logo-item img {
    max-width: 100%;
    max-height: 40px;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all 0.3s ease;
}
.logo-item:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

/* === CTA V2 === */
.cta-section {
    padding: 80px 20px;
    background-color: #1665FF;
    background-image: linear-gradient(135deg, #1665FF 0%, #2A7DFF 100%);
}
.cta-section .section-title, .cta-section .section-subtitle {
    color: #FFFFFF;
    text-align: center;
}
.cta-section .section-subtitle {
    opacity: 0.8;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.form-container {
    max-width: 800px;
    margin: 50px auto 0 auto;
    background-color: #FFFFFF;
    padding: 40px 50px;
    border-radius: 16px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.1);
}
.trial-form .form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.form-group {
        display: flex;
    flex-direction: column;
}
.form-group.full-width {
    grid-column: 1 / -1;
}
.form-group input, .form-group textarea {
        width: 100%;
    padding: 12px 16px;
    border: 1px solid #DCDFE6;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: #1665FF;
    box-shadow: 0 0 0 2px rgba(22, 101, 255, 0.2);
}
.form-group textarea {
    resize: vertical;
    min-height: 100px;
}
.submit-button {
        width: 100%;
    padding: 14px;
    background-color: #1665FF;
    color: #FFFFFF;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
.submit-button:hover {
    background-color: #0052D9;
}
@media (max-width: 768px) {
    .trial-form .form-grid {
        grid-template-columns: 1fr;
    }
    .form-container {
        padding: 30px 25px;
    }
}

/* === 关于我们 V2 === */
.about-section {
    padding: 80px 20px;
    background-color: #FFFFFF;
}
.about-container {
    max-width: 1200px;
    margin: 0 auto;
}
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    margin-top: 60px;
}
.about-text p {
        font-size: 1rem;
    line-height: 1.8;
    color: #4E5969;
    margin-bottom: 20px;
}
.about-text p strong {
    color: #1D2129;
    font-weight: 600;
}
.about-image img {
    width: 100%;
    border-radius: 12px;
}

@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }
}

/* === 页脚 V2 === */
.footer {
    background-color: #1D2129;
    color: #E5E6EB;
    padding: 60px 20px 20px 20px;
}
.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}
.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
    padding-bottom: 50px;
    border-bottom: 1px solid #4E5969;
}
.footer-main {
    flex: 1;
}
.footer-logo .logo-image {
    max-height: 32px;
    filter: brightness(0) invert(1); /* Make logo white */
}
.footer-desc {
    margin-top: 20px;
    font-size: 0.9rem;
    line-height: 1.7;
    color: #ADB5BD;
    max-width: 350px;
}
.footer-contact {
    flex: 1;
}
.footer-contact h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 25px;
    color: #FFFFFF;
}
.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: #ADB5BD;
}
.contact-item i {
    margin-right: 12px;
    margin-top: 4px;
    color: #86909C;
    width: 16px;
    text-align: center;
}
.footer-bottom {
    text-align: center;
    font-size: 0.85rem;
    color: #86909C;
}
.footer-links span {
    margin: 0 10px;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
    display: flex;
    flex-direction: column;
        gap: 10px;
    }
}

/* === 其他模块适配 === */

/* 新增：应用场景 V3 - Tab 结构 */
.scenes-section-v3 {
    padding: 80px 20px;
    background: #fff;
}
.scenes-tabs-wrapper {
    display: flex;
    justify-content: center;
        gap: 1rem;
    margin-bottom: 4rem;
    border: 1px solid #e5e6eb;
    border-radius: 12px;
    padding: 8px;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
    background-color: #F7F9FC;
}
.scene-tab-v3 {
    padding: 12px 28px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
        display: flex;
        align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: 600;
    color: #4E5969;
    border: 1px solid transparent;
}
.scene-tab-v3 i {
    color: #86909C;
    transition: color 0.3s ease;
}
.scene-tab-v3:hover {
    background-color: #fff;
    border-color: #d1e0ff;
}
.scene-tab-v3:hover i, .scene-tab-v3.active i {
    color: #1665FF;
}
.scene-tab-v3.active {
    background-color: #fff;
    color: #1665FF;
    box-shadow: 0 5px 15px rgba(22,101,255,0.1);
    border-color: #1665FF;
}
.scenes-content-wrapper {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
}
.scene-content-v3 {
    display: none; /* Hidden by default */
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
        align-items: center;
    }
.scene-content-v3.active {
    display: grid; /* Show active content */
    animation: fadeIn 0.5s ease-in-out;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.scene-content-title {
        font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}
.scene-content-desc {
    color: #4E5969;
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}
.scene-feature-list {
    list-style: none;
    padding: 0;
    margin-bottom: 2.5rem;
}
.scene-feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    color: #1D2129;
    margin-bottom: 12px;
}
.scene-feature-list .fa-check-circle {
    color: #1665FF;
    font-size: 1.2rem;
}
.btn-primary-scene {
    background-color: #1665FF;
    color: #fff;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    display: inline-block;
    transition: all 0.3s ease;
}
.btn-primary-scene:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}
.scene-image-content img {
        width: 100%;
    border-radius: 12px;
    aspect-ratio: 4/3;
    object-fit: cover;
}
@media (max-width: 992px) {
    .scene-content-v3 {
        grid-template-columns: 1fr;
    }
    .scene-image-content {
        order: -1; /* Image on top on mobile */
    }
}
@media (max-width: 768px) {
    .scenes-tabs-wrapper {
        flex-direction: column;
        width: 100%;
        padding: 6px;
    }
}

.cases-section {
    padding-top: 110px;
    padding-bottom: 110px;
}

/* === 新闻动态 V2 === */
.news-section {
    padding: 80px 20px;
    background-color: #F7F9FC;
}

.news-section .section-header {
    text-align: center;
    margin-bottom: 60px;
}
.news-section .section-header .section-title {
    font-weight: 700;
    margin-bottom: 1rem;
}

.news-layout-wrapper {
    display: flex;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    align-items: flex-start; /* Align items to the top */
}

.news-list-column {
    flex: 2;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.promo-card-column {
    flex: 1;
    position: sticky;
    top: 100px; /* Adjust this value based on navbar height */
}

.news-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #FFFFFF;
    padding: 25px;
    border-radius: 12px;
    border: 1px solid #E5E6EB;
    transition: all 0.3s ease;
    text-decoration: none;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(22, 101, 255, 0.08);
    border-color: #BEDAFF;
}

.news-item-content {
    margin-right: 20px;
}

.news-item-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: #1D2129;
    margin-bottom: 8px;
    line-height: 1.5;
}

.news-item-desc {
    font-size: 0.95rem;
    color: #86909C;
    line-height: 1.7;
}

.news-item-link {
    font-size: 1.25rem;
    color: #C9CDD4;
    transition: color 0.3s ease, transform 0.3s ease;
}

.news-item:hover .news-item-link {
    color: #1665FF;
    transform: translateX(5px);
}

/* Promo Card Styles */
.datagpt-promo-card {
    background-color: #FFFFFF;
    border-radius: 12px;
    border: 1px solid #E5E6EB;
    padding: 25px;
    box-shadow: 0 4px 20px rgba(0, 33, 89, 0.05);
}

.promo-badge {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    color: #FF7D00;
    margin-bottom: 16px;
}

.promo-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1D2129;
    margin-bottom: 12px;
}

.promo-desc {
    font-size: 0.95rem;
    color: #4E5969;
    line-height: 1.7;
    margin-bottom: 25px;
}

.promo-cta-box {
        display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border: 1px solid #BEDAFF;
    border-radius: 8px;
    background-color: #F0F6FF;
    transition: all 0.2s ease;
    cursor: pointer;
}

.promo-cta-box:hover {
    box-shadow: 0 4px 15px rgba(22, 101, 255, 0.1);
}

.promo-link {
    font-size: 1rem;
    font-weight: 500;
    color: #1665FF;
    text-decoration: none;
}

.promo-image {
    height: 30px;
    width: auto;
}
        /* === 产品选择模块 (UI/UX 优化版) === */
        .product-choice-section {
            padding: 80px 20px;
}

/* === 新闻动态 V2 - Polished Tweaks === */
.news-layout-wrapper {
    max-width: 1200px; /* Slightly narrower for better focus */
}

.news-item {
    padding: 24px 32px;
    border: 1px solid #E5E6EB;
    border-radius: 14px;
    transition: all 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.news-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(22, 101, 255, 0.08);
    border-color: #BEDAFF;
}

/* Arrow Button */
.news-item-link {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    border: 1px solid #E5E6EB;
    border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
    color: #C9CDD4;
    transition: all 0.25s ease;
}
.news-item:hover .news-item-link {
    background-color: #1665FF;
    border-color: #1665FF;
    color: #FFFFFF;
    transform: translateX(4px);
}

/* Promo Card refinement */
.datagpt-promo-card {
    border-radius: 14px;
    overflow: hidden;
        position: relative;
    transition: box-shadow 0.3s ease;
}
.datagpt-promo-card:hover {
    box-shadow: 0 12px 32px rgba(0,33,89,0.1);
}

.promo-cta-box {
    margin-top: 8px;
    padding: 14px 18px;
    background: linear-gradient(135deg, #2A7DFF 0%, #1665FF 100%);
    border: none;
}
.promo-link {
    color: #FFFFFF;
    font-weight: 600;
}
.promo-image {
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.12)) brightness(0) invert(1);
}

@media (max-width: 768px) {
    .news-layout-wrapper {
        max-width: 100%;
        padding: 0 1rem;
    }
    .promo-card-column {
        position: static;
        width: 100%;
    }
}

/* === Scenes Tabs V3 - Polished Override === */
.scenes-tabs-wrapper {
    border: none !important;
    background: #F3F6FF;
    padding: 10px 12px;
    border-radius: 18px;
    box-shadow: 0 4px 20px rgba(22, 101, 255, 0.05);
    gap: 8px !important;
}

.scene-tab-v3 {
    border: none !important;
    background: transparent;
    color: #4E5969;
    padding: 12px 34px;
    border-radius: 999px;
    font-weight: 600;
    transition: all 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.scene-tab-v3:hover {
    background: #EAF1FF;
    color: #1665FF;
}

.scene-tab-v3.active {
    background: #1665FF !important;
    color: #FFFFFF !important;
    box-shadow: 0 6px 18px rgba(22, 101, 255, 0.25);
}

.scene-tab-v3 i {
    display: none !important; /* Hide icons as requested */
}

@media (max-width: 768px) {
    .scenes-tabs-wrapper {
    flex-direction: column;
        align-items: stretch;
    }
    .scene-tab-v3 {
        width: 100%;
        text-align: center;
    }
}

/* === Customer Cases Tabs - Blue Theme Override === */
.case-tab {
    transition: all 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.case-tab:hover {
    background-color: #EAF1FF !important;
    color: #1665FF !important;
    border-color: #EAF1FF !important;
}
.case-tab.active {
    background-color: #1665FF !important;
    border-color: #1665FF !important;
    color: #FFFFFF !important;
    box-shadow: 0 6px 18px rgba(22, 101, 255, 0.25) !important;
}

/* === News Section Polished Alignment === */
.news-layout-wrapper {
    display: grid !important;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: flex-start;
}
.news-list-column {
    display: grid;
    gap: 24px;
}
.news-item {
    height: 120px; /* Changed from min-height to fixed height for consistency */
    padding: 28px 36px;
    border-radius: 16px;
    background: #FFFFFF;
    display: flex;
    justify-content: space-between;
        align-items: center;
    border: 1px solid #E5E6EB;
    transition: transform 0.35s cubic-bezier(.22,.61,.36,1), box-shadow 0.35s cubic-bezier(.22,.61,.36,1);
}
@media screen and (max-width: 768px) {
    .news-item {
        height: max-content; /* Allow height to adjust on smaller screens */
    }
}
.news-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(22,101,255,0.08);
}

/* arrow button animation */
.news-item-link {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid #D1D5DB;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #B0B8C4;
    transition: all 0.3s cubic-bezier(.22,.61,.36,1);
}
.news-item:hover .news-item-link {
    background: #1665FF;
    border-color: #1665FF;
    color: #FFFFFF;
    transform: translateX(6px);
}

/* promo card subtle hover */
.datagpt-promo-card {
    transition: transform 0.35s cubic-bezier(.22,.61,.36,1), box-shadow 0.35s cubic-bezier(.22,.61,.36,1);
}
.datagpt-promo-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 48px rgba(0,33,89,0.12);
}

@media (max-width: 992px) {
    .news-layout-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .promo-card-column {
        position: static;
    }
}

.scene-tab-v3.active {
    background: #1665FF !important;
    color: #FFFFFF !important;
    box-shadow: 0 6px 18px rgba(22, 101, 255, 0.25);
}

.scene-content-wrapper {
    position: relative;
    transition: height 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.scene-content-v3 {
    transition: opacity 0.4s ease-in-out;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
}

.scene-content-v3.active {
    position: relative;
    opacity: 1;
    visibility: visible;
}

.scene-tab-v3 i {
    display: none !important;
}

/* === Why Choose Us (V5 - Blue & White Redesign) === */
.why-choose-us-section .why-choose-us-content {
    gap: 60px; /* Increase gap between columns */
}

/* Left Column: Feature List */
.why-choose-us-section .features-list-wrapper {
    gap: 16px;
}
.why-choose-us-section .feature-item {
    background-color: #FFFFFF;
    padding: 24px 30px;
    border-radius: 14px;
    border: 1px solid #E5E6EB;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    box-shadow: 0 4px 12px rgba(0, 33, 89, 0.03);
}
.why-choose-us-section .feature-item.active,
.why-choose-us-section .feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(22, 101, 255, 0.08);
    border-color: #A8C5FF;
}
.why-choose-us-section .feature-item.active {
    border-color: #1665FF;
}
.why-choose-us-section .feature-item h4 {
    font-size: 1.15rem;
    font-weight: 700;
    color: #1D2129;
    margin-bottom: 8px;
    padding-left: 22px; /* Space for the bullet */
    position: relative;
}
.why-choose-us-section .feature-item h4::before {
    content: "•";
    color: transparent; /* Hidden by default */
    font-size: 22px;
    position: absolute;
    left: 0;
    top: -2px;
    transition: color 0.3s ease;
}
.why-choose-us-section .feature-item.active h4::before {
    color: #1665FF; /* Blue bullet for active item */
}
.why-choose-us-section .feature-item p {
    color: #86909C;
    line-height: 1.7;
    padding-left: 22px;
}

/* Right Column: Interactive Content */
.why-choose-us-section .interactive-content-container {
    background-color: #F7F9FC; /* Light blue-gray background */
    border-radius: 16px;
    border: none;
    padding: 32px;
    box-shadow: none;
    min-height: 480px; /* Adjusted height */
}
.why-choose-us-section .interactive-panel {
    align-items: center;    
}
.why-choose-us-section .panel-title {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

/* Panel 1: Video Mockup */
.panel-v5-video-mockup {
    width: 100%;
    aspect-ratio: 16/9;
    background-color: #1D2129;
    border-radius: 10px;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}
.panel-v5-video-mockup img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}
.panel-v5-video-mockup:hover img {
    opacity: 0.6;
}
.panel-v5-video-mockup .play-overlay {
    position: absolute;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.9);
        display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}
.panel-v5-video-mockup:hover .play-overlay {
    transform: scale(1.1);
}
.panel-v5-video-mockup .play-overlay i {
    color: #1665FF;
    font-size: 24px;
    margin-left: 4px; /* Center the play icon visually */
}
.panel-v5-video-mockup span {
    display: none; /* Hide the "一个视频" text */
}
.panel-v5-query-box {
    margin-top: 20px;
    width: 100%;
    background-color: #FFFFFF;
    border: 1px solid #E5E6EB;
    border-radius: 10px;
    padding: 20px;
    font-size: 1rem;
    line-height: 1.8;
    color: #4E5969;
}
.panel-v5-query-box p { margin: 0; }
.panel-v5-query-box .indented { padding-left: 2em; color: #86909C; }

/* Panel 2: Cost Comparison */
.panel-v5-cost-comparison {
        display: flex;
        gap: 20px;
    width: 100%;
}
.cost-card-v5 {
    flex: 1;
    padding: 24px;
    border-radius: 12px;
    border: 1px solid #E5E6EB;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.cost-card-v5.traditional { background-color: #FFFFFF; }
.cost-card-v5.yiwu-bi { background-color: #F0F6FF; border-color: #BEDAFF; }
.cost-card-v5 .card-header {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1D2129;
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 12px;
    border-bottom: 1px solid #E5E6EB;
}
.cost-card-v5.yiwu-bi .card-header { border-bottom-color: #D1E0FF; }
.cost-card-v5 .card-header img { height: 24px; }
.cost-item-v5 {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: #4E5969;
}
.cost-item-v5 .cost-value { font-weight: 500; font-family: 'Inter', sans-serif; }
.cost-card-v5.yiwu-bi .cost-item-v5 .cost-value { color: #1665FF; font-weight: 600; }
.cost-total-v5 {
    margin-top: auto; /* Push to bottom */
    padding-top: 12px;
    border-top: 1px solid #E5E6EB;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}
.cost-card-v5.yiwu-bi .cost-total-v5 { border-top-color: #D1E0FF; }
.cost-total-v5 .total-value {
    font-size: 1.8rem;
    font-weight: 700;
    font-family: 'Inter', sans-serif;
}
.cost-card-v5.yiwu-bi .total-value { color: #1665FF; }

.comparison-divider-v5 {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}
.comparison-divider-v5 .fas { font-size: 1.5rem; color: #ADB5BD; }
.savings-badge-v5 {
    background-color: #1665FF;
    color: #fff;
    padding: 8px 12px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

/* Panel 3: Efficiency Flow */
.panel-v5-efficiency-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    width: 100%;
}
.flow-column-v5 {
    flex: 1;
    display: flex;
        flex-direction: column;
        align-items: center;
    gap: 10px;
}
.flow-column-v5.yiwu { justify-content: center; }
.flow-title-v5 { font-weight: 700; color: #1D2129; margin-bottom: 10px; }
.flow-box-v5 {
    width: 100%;
    background: #FFFFFF;
    border: 1px solid #E5E6EB;
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    color: #4E5969;
}
.flow-box-v5.blue {
    background: #F0F6FF;
    border-color: #BEDAFF;
    color: #1D2129;
}
.flow-box-v5 strong { font-size: 1.1rem; display: block; margin-bottom: 4px; }
.flow-arrow-down-v5 { color: #C9CDD4; }
.flow-connector-v5 { font-size: 2rem; color: #1665FF; }

/* Panel 4: Insight Mockup */
.panel-v5-insight-mockup {
        width: 100%;
    text-align: center;
    color: #4E5969;
}
.panel-v5-insight-mockup p {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 24px;
}
.insight-input-box {
    background-color: #FFFFFF;
    border: 1px solid #E5E6EB;
    border-radius: 10px;
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1rem;
    color: #86909C;
    cursor: text;
}
.insight-input-box i { color: #1665FF; }

/* Remove all old styles for this section */
.why-v4-section, .why-v4-feature-item, .why-v4-mockup-wrapper {
    display: none !important;
}

/* 行业数据统计响应式样式 */
@media (max-width: 768px) {
    .industry-stats-section {
        padding: 3rem 1rem;
    }
    
    .stats-title {
        font-size: 1.6rem;
        line-height: 1.4;
    }
    
    .industry-logos {
        gap: 1.5rem;
        margin-bottom: 3rem;
    }
    
    .industry-logo-item {
        height: 50px;
        padding: 0.8rem;
    }
    
    .industry-logo-item img {
        max-height: 30px;
        max-width: 100px;
    }
    
    .featured-quote {
        padding: 2rem;
        margin-bottom: 2rem;
    }
    
    .quote-text {
        font-size: 1.1rem;
        line-height: 1.5;
    }
    
    .case-study-card {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .case-icon {
        width: 50px;
        height: 50px;
    }
    
    .analysis-highlight {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
        gap: 1rem;
    }
    
    .highlight-title {
        font-size: 1.1rem;
    }
}

/* === Product Detail Page Styles === */
.product-detail-hero {
    min-height: auto;
    padding: 120px 0 60px 0;
    background: #fff;
}

.product-detail-hero .section-title {
    font-size: 2.8rem;
}

.blueprint-section {
    padding: 60px 0;
}

.blueprint-section img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.dilemma-section {
    padding: 80px 0;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 60px;
}

.comparison-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 5px 25px rgba(0,33,89,0.07);
}

.comparison-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.comparison-card.before h3 {
    color: #D9534F;
}

.comparison-card.after h3 {
    color: #1665FF;
}

.comparison-card ul {
    list-style: none;
    padding: 0;
}

.comparison-card li {
    margin-bottom: 15px;
}

.comparison-table {
    margin-top: 60px;
    border: 1px solid #E5E6EB;
    border-radius: 12px;
    overflow: hidden;
    background-color: #FFFFFF;
    box-shadow: 0 10px 40px rgba(0,33,89,0.08);
}

.table-header, .table-row {
    display: grid;
    grid-template-columns: 1fr 1.5fr 1.5fr 2fr 1.5fr;
    gap: 20px;
    padding: 20px 24px;
    align-items: start;
    font-size: 0.95rem;
}

.table-header {
    background-color: #F7F9FC;
    font-weight: 600;
    color: #1D2129;
    padding-top: 16px;
    padding-bottom: 16px;
}

.table-row {
    border-top: 1px solid #E5E6EB;
}

.table-row > div:first-child {
    font-weight: 600;
    color: #1D2129;
}

.table-row > div {
    color: #4E5969;
    line-height: 1.7;
}

.table-row ul {
    list-style-type: '- ';
    padding-left: 1em;
    margin: 0;
}

.table-row li + li {
    margin-top: 10px;
}

.scenarios-section {
    padding: 80px 0;
    background-color: #fff;
}

.scenarios-section .scenes-content-container-v4 {
    background-color: #F7F9FC;
    border-radius: 16px;
    padding: 40px;
}

.value-item {
    display: flex;
    align-items: start;
    gap: 15px;
    margin-bottom: 24px;
    background: #FFFFFF;
    padding: 20px;
    border-radius: 12px;
}

.value-title {
    background-color: #E8F0FF;
    color: #1665FF;
    padding: 4px 12px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
}

.value-item p {
    margin: 0;
    color: #4E5969;
}

.more-scenarios-section {
    padding: 80px 0;
    background-color: #FFFFFF;
}

.more-scenarios-section .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.scenario-column h4 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1D2129;
    margin-bottom: 20px;
}
.scenario-column h5 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1D2129;
    margin-bottom: 12px;
}

.scenario-column img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 5px 25px rgba(0,33,89,0.07);
    margin-bottom: 24px;
}

.scenario-column ul {
    list-style: none;
    padding: 0;
}

.scenario-column li {
    background-color: #F7F9FC;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 15px;
    font-size: 0.95rem;
    line-height: 1.7;
    color: #4E5969;
    border: 1px solid #E5E6EB;
}
.scenario-column li strong {
    color: #1665FF;
}

/* ========================= CHATBI STYLE INTEGRATION ========================= */

/* ChatBI Color Variables */
:root {
    --color-primary: #1665FF;
    --color-primary-dark: #1E40AF;
    --color-background: #F7F9FC;
    --color-surface: #FFFFFF;
    --color-text-primary: #1D2129;
    --color-text-secondary: #4E5969;
    --color-border: #E5E6EB;
}

/* ChatBI Navigation Style */
.premium-nav {
    backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.premium-dropdown {
    background: var(--color-surface);
    backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    box-shadow: 0 20px 60px rgba(0, 33, 89, 0.15);
}

/* ChatBI Button Styles */
.cta-button {
    background-color: var(--color-primary);
    color: white;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(22, 101, 255, 0.2);
    background-color: var(--color-primary-dark);
}

.btn-secondary-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-border);
    padding: 10px 26px;
    border-radius: 8px;
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.btn-secondary-outline:hover {
    border-color: var(--color-primary);
    color: white;
    background-color: var(--color-primary);
}

.premium-btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    border-radius: 8px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.premium-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(22, 101, 255, 0.2);
}

/* ChatBI Hero Section Style */
.chatbi-hero {
    padding: 150px 0 80px 0;
    text-align: center;
    background: linear-gradient(180deg, #F5F9FF 0%, var(--color-surface) 100%);
    position: relative;
}

/* ChatBI Hero Content */
.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

/* ChatBI Section Styles */
.premium-section {
    padding: 80px 0;
    position: relative;
}

.premium-section:nth-child(even) {
    background-color: var(--color-background);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-tag {
    display: inline-block;
    color: var(--color-primary);
    background-color: #E8F0FF;
    padding: 6px 16px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 20px auto 0;
    line-height: 1.7;
}

/* ChatBI Blueprint Section */
.blueprint-container {
    max-width: 1200px;
    margin: 0 auto;
}

.blueprint-image-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 33, 89, 0.1);
    transition: all 0.3s ease;
    border: 1px solid var(--color-border);
}

.blueprint-image-wrapper:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(22, 101, 255, 0.15);
}

.blueprint-image {
    width: 100%;
    height: auto;
    display: block;
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(22, 101, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.blueprint-image-wrapper:hover .image-overlay {
    opacity: 1;
}

.overlay-content {
    text-align: center;
    color: white;
}

.overlay-content i {
    font-size: 2rem;
    margin-bottom: 10px;
    display: block;
}

.overlay-content span {
    font-size: 1rem;
    font-weight: 700;
}

/* Premium Comparison Cards */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.comparison-card {
    background: var(--color-surface);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 5px 25px rgba(0, 33, 89, 0.07);
    transition: all 0.3s ease;
    position: relative;
    border: 1px solid var(--color-border);
}

.comparison-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--color-primary);
}

.comparison-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(22, 101, 255, 0.08);
    border-color: var(--color-primary);
}

.card-header {
    text-align: center;
    margin-bottom: 30px;
}

.problem-icon {
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 5px 15px rgba(22, 101, 255, 0.2);
}

.problem-icon i {
    font-size: 1.8rem;
    color: white;
}

.card-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.problem-desc {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.comparison-content {
    margin-top: 30px;
}

.before-after {
    display: grid;
    gap: 25px;
    margin-bottom: 30px;
}

.before-section, .after-section {
    padding: 20px;
    border-radius: 12px;
    position: relative;
}

.before-section {
    background: linear-gradient(135deg, #fef2f2 0%, #fecaca 100%);
    border-left: 4px solid #EF4444;
}

.after-section {
    background: linear-gradient(135deg, #f0fdf4 0%, #bbf7d0 100%);
    border-left: 4px solid #22C55E;
}

.before-section h4, .after-section h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.before-section h4 {
    color: #DC2626;
}

.after-section h4 {
    color: #16A34A;
}

.before-section ul {
    list-style: none;
    padding: 0;
}

.before-section li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    color: #7F1D1D;
}

.before-section li::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: #DC2626;
    font-weight: bold;
}

.after-section p {
    color: #166534;
    line-height: 1.6;
    margin: 0;
}

.value-metrics {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.metric {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, #e0f2fe 0%, #b3e5fc 100%);
    border-radius: 12px;
    flex: 1;
}

.metric-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: #1665FF;
    margin-bottom: 5px;
}

.metric-label {
    font-size: 0.9rem;
    color: #0369A1;
    font-weight: 600;
}

/* Premium Scenarios */
.scenarios-tabs {
    display: flex;
    gap: 8px;
    background: var(--color-background);
    padding: 8px;
    border-radius: 12px;
    margin-bottom: 60px;
    overflow-x: auto;
    justify-content: center;
    border: 1px solid var(--color-border);
}

.scenario-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    background: transparent;
    border-radius: 8px;
    font-weight: 700;
    color: var(--color-text-secondary);
    transition: all 0.3s ease;
    cursor: pointer;
    white-space: nowrap;
    min-width: 100px;
    justify-content: center;
}

.scenario-tab.active {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 5px 15px rgba(22, 101, 255, 0.2);
}

.scenario-tab:hover:not(.active) {
    background: #E8F0FF;
    color: var(--color-primary);
}

.scenarios-content {
    position: relative;
    min-height: 600px;
}

.scenario-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease;
    pointer-events: none;
}

.scenario-content.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.scenario-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.scenario-info h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 30px;
    line-height: 1.3;
}

.value-propositions {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-bottom: 40px;
}

.value-prop {
    display: flex;
    gap: 15px;
    padding: 20px;
    background: var(--color-surface);
    border-radius: 12px;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.value-prop:hover {
    transform: translateY(-2px);
    border-color: var(--color-primary);
    box-shadow: 0 5px 15px rgba(22, 101, 255, 0.1);
}

.value-icon {
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.value-icon i {
    font-size: 1.5rem;
    color: white;
}

.value-content h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 5px;
}

.value-content p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
}

.scenario-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-outline.premium-btn {
    background: transparent;
    border: 2px solid #1665FF;
    color: #1665FF;
    padding: 14px 28px;
}

.btn-outline.premium-btn:hover {
    background: #1665FF;
    color: white;
}

.scenario-visual {
    position: relative;
}

.visual-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 25px 80px rgba(0, 33, 89, 0.15);
}

.visual-wrapper img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.visual-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(22, 101, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.visual-wrapper:hover .visual-overlay {
    opacity: 1;
}

.visual-wrapper:hover img {
    transform: scale(1.05);
}

.play-button {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border: 3px solid white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.play-button:hover {
    transform: scale(1.1);
}

.play-button i {
    font-size: 1.8rem;
    color: white;
    margin-left: 5px;
}

/* ChatBI More Scenarios */
.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.scenario-category {
    background: var(--color-surface);
    border-radius: 16px;
    padding: 30px;
    border: 1px solid var(--color-border);
    box-shadow: 0 5px 25px rgba(0, 33, 89, 0.07);
    transition: all 0.3s ease;
}

.scenario-category:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: 0 10px 30px rgba(22, 101, 255, 0.08);
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #F1F5F9;
}

.category-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.category-icon {
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-icon i {
    font-size: 1.5rem;
    color: white;
}

.agent-cards {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.agent-card {
    background: var(--color-surface);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.agent-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-primary);
    box-shadow: 0 5px 15px rgba(22, 101, 255, 0.1);
}

.agent-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 15px;
}

.agent-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.agent-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(22, 101, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.agent-image:hover .agent-overlay {
    opacity: 1;
}

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

.agent-overlay i {
    font-size: 2rem;
    color: white;
}

.agent-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.agent-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
}

.use-cases {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.use-case {
    display: flex;
    gap: 15px;
    padding: 15px;
    background: var(--color-surface);
    border-radius: 8px;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.use-case:hover {
    border-color: var(--color-primary);
    box-shadow: 0 3px 10px rgba(22, 101, 255, 0.08);
}

.use-case-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.use-case-icon i {
    font-size: 1.2rem;
    color: white;
}

.use-case-content h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 5px;
}

.use-case-content p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
    font-size: 0.9rem;
}

/* ChatBI Footer Style */
.premium-footer {
    background: var(--color-text-primary);
    color: white;
}

/* ChatBI Responsive Design */
@media (max-width: 1024px) {
    .scenario-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .scenarios-tabs {
        justify-content: flex-start;
        padding: 6px;
    }
    
    .scenario-tab {
        padding: 10px 16px;
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
    }
    
    .premium-section {
        padding: 60px 0;
    }
    
    .scenario-info h3 {
        font-size: 1.5rem;
    }
    
    .comparison-card {
        padding: 20px;
    }
    
    .category-header {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
}

/* ChatBI Premium Comparison Cards */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.comparison-card {
    background: var(--color-surface);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 5px 25px rgba(0, 33, 89, 0.07);
    transition: all 0.3s ease;
    position: relative;
    border: 1px solid var(--color-border);
    border-top: 4px solid var(--color-border);
}

.comparison-card.highlight {
    border-top-color: var(--color-primary);
    box-shadow: 0 15px 45px rgba(22, 101, 255, 0.15);
}

.comparison-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 45px rgba(0, 33, 89, 0.12);
}

.card-header {
    text-align: center;
    margin-bottom: 30px;
}

.problem-icon {
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.problem-icon i {
    font-size: 1.8rem;
    color: white;
}

.card-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.problem-desc {
    color: var(--color-text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

.comparison-content {
    margin-top: 30px;
}

.before-after {
    display: grid;
    gap: 20px;
    margin-bottom: 30px;
}

.before-section, .after-section {
    padding: 20px;
    border-radius: 12px;
    position: relative;
}

.before-section {
    background: #FFF1F0;
    border-left: 4px solid #FF4D4F;
}

.after-section {
    background: #F6FFED;
    border-left: 4px solid #52C41A;
}

.before-section h4, .after-section h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.before-section h4 {
    color: #CF1322;
}

.after-section h4 {
    color: #389E0D;
}

.before-section ul {
    list-style: none;
    padding: 0;
}

.before-section li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    color: #A8071A;
    font-size: 0.9rem;
}

.before-section li::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: #CF1322;
    font-weight: bold;
}

.after-section p {
    color: #237804;
    line-height: 1.7;
    margin: 0;
    font-size: 0.9rem;
}

.value-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.metric {
    text-align: center;
    padding: 20px 10px;
    background: #E6F7FF;
    border-radius: 12px;
}

.metric-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 5px;
    line-height: 1.2;
}

.metric-label {
    font-size: 0.9rem;
    color: #0050B3;
    font-weight: 500;
}

/* === Navigation Dropdown Visibility Enhancement === */
.nav-item {
    position: relative; /* Establish positioning context for dropdown */
}

/* Hide dropdown menu until hover */
.nav-item .dropdown-menu {
    display: none;            /* Hide by default */
    position: absolute;
    top: 100%;                /* Position right below the nav item */
    left: 0;
    min-width: 160px;         /* Basic width so items don't wrap unexpectedly */
    z-index: 1001;            /* Ensure it sits above other content */
}

/* Show dropdown on hover */
.nav-item:hover .dropdown-menu {
    display: block;
}

/* === Navigation Dropdown (ChatBI Style) === */
.nav-menu .nav-item.dropdown {
    position: relative;
}

.nav-menu .dropdown-toggle {
    cursor: pointer;
    display: flex;
    align-items: center;
}

/* Base dropdown menu */
.nav-menu .dropdown-menu {
    display: none;
    position: absolute;
    background-color: #ffffff;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.1);
    z-index: 1001;
    border-radius: 8px;
    padding: 8px 0;
    margin-top: 10px;
    left: 50%;
    transform: translateX(-50%);
    border: 1px solid var(--color-border);
}

/* Dropdown items */
.nav-menu .dropdown-menu .dropdown-item {
    color: var(--color-text-primary);
    font-weight: 500;
    padding: 12px 20px;
    display: block;
    text-align: left;
    font-size: 0.95rem;
    transition: background-color 0.2s ease, color 0.2s ease;
    white-space: nowrap;
}

.nav-menu .dropdown-menu .dropdown-item:hover {
    background-color: #F0F6FF;
    color: var(--color-primary);
}

/* Display controlled via JS (.open class) */
.nav-menu .nav-item.dropdown.open .dropdown-menu {
    display: block;
}

.nav-menu .dropdown-toggle .fa-chevron-down {
    transition: transform 0.2s ease-in-out;
    font-size: 0.8em;
    margin-left: 6px;
}

.nav-menu .nav-item.dropdown:hover .dropdown-toggle .fa-chevron-down {
    transform: rotate(180deg);
}

/* === UX优化: 固定导航下锚点偏移修复 === */
section[id], [data-anchor] {
    scroll-margin-top: 100px; /* 根据导航高度调整 */
}