/* Optimized Main CSS File - Combined and Minified Version */
/* Contains essential styles from design-system.css, components-enhanced.css, layout-enhancements.css, optimizations.css, and touch-optimization.css */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box
}

/* 优化footer布局和logo大小 */
.footer-content {
    gap: 2rem !important; /* 减小间距 */
}

.footer-logo img {
    width: 32px !important; /* 减小logo大小 */
    height: 32px !important;
    margin-bottom: 0.8rem !important;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: "kern" 1, "liga" 1;
    min-width: 320px;
    overflow-x: hidden !important;
    box-sizing: border-box !important;
    margin: 0 !important;
    padding: 0 !important;
}

/* 默认导航操作区域样式 */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
    flex-wrap: wrap;
    justify-content: center;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    min-width: 300px;
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

/* 确保导航栏内的container也有正确的样式 */
.navbar .container {
    max-width: 100%;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

/* Desktop Enhancements */
@media (min-width: 1200px) {
    .hero {
        padding: 8.75rem 0 6.25rem;
    }

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

    .hero-subtitle {
        font-size: 1.4rem;
    }

    section {
        padding: 6.25rem 0;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .intro-content {
        gap: 4rem;
    }

    .intro-text h2 {
        font-size: 2.2rem;
    }

    .intro-text p {
        font-size: 1.2rem;
        line-height: 1.8;
    }

    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }

    .feature-card {
        padding: 20px 30px;
    }

    .feature-card h3 {
        font-size: 1.5rem;
    }

    .feature-card p {
        font-size: 1.1rem;
    }

    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
    }

    .solution-item {
        padding: 40px 30px;
    }

    .solution-item h3 {
        font-size: 1.8rem;
    }

    .solution-item p {
        font-size: 1.1rem;
    }

    .company-intro h2 {
        font-size: 2.2rem;
    }

    .company-intro p {
        font-size: 1.2rem;
        line-height: 1.8;
    }

    .flow-title {
        font-size: 2.2rem;
    }

    .flow-diagram {
        gap: 4rem;
    }

    .flow-step h3 {
        font-size: 1.5rem;
    }

    .flow-step p {
        font-size: 1.1rem;
    }

    .cta-content h2 {
        font-size: 2.5rem;
    }

    .cta-content p {
        font-size: 1.2rem;
        line-height: 1.8;
    }

    .footer-content {
        gap: 4rem;
        margin-bottom: 3rem;
    }

    .footer-links h3 {
        font-size: 1.5rem;
    }

    .footer-links ul li a {
        font-size: 1.1rem;
    }

    .device-showcase {
        height: 450px;
    }

    .mac-device .device-frame {
        max-width: 400px;
        padding: 20px;
    }

    .mobile-device .device-frame {
        max-width: 220px;
        padding: 12px;
    }

    .mobile-device {
        top: 200px;
        left: 55%;
    }
}

/* Enhanced Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: #1f2937
}

h1 {
    font-size: clamp(2rem, 5vw, 4rem)
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.5rem)
}

h3 {
    font-size: clamp(1.25rem, 2.5vw, 2rem)
}

h4 {
    font-size: clamp(1.125rem, 2vw, 1.75rem)
}

h5 {
    font-size: clamp(1rem, 1.5vw, 1.5rem)
}

h6 {
    font-size: clamp(0.875rem, 1.25vw, 1.25rem)
}

p {
    margin-bottom: 1rem;
    color: #6b7280;
    line-height: 1.7
}

a {
    color: #3b82f6;
    text-decoration: none;
    transition: color .3s ease
}

a:hover {
    color: #2563eb
}

/* Enhanced Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all .3s ease
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, .3)
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, .4)
}

.btn-outline {
    background: transparent;
    color: #3b82f6;
    border: 2px solid #3b82f6
}

.btn-outline:hover {
    background: #3b82f6;
    color: white;
    transform: translateY(-2px)
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.125rem
}

.btn-full {
    width: 100%
}

/* Touch Feedback Effects */
.touch-feedback {
    position: relative;
    overflow: hidden;
    transform: translateZ(0);
    will-change: transform
}

.touch-feedback::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, .4);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: width .6s, height .6s, opacity .6s
}

.touch-feedback:active::after {
    width: 200px;
    height: 200px;
    opacity: 1;
    transition: 0s
}

.ripple {
    position: relative;
    overflow: hidden
}

.ripple::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, .4);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: width .6s, height .6s, opacity .6s
}

.ripple:active::before {
    width: 200px;
    height: 200px;
    opacity: 1;
    transition: 0s
}

/* Enhanced Header */
.header {
    background: rgba(255, 255, 255, .95) !important;
    backdrop-filter: blur(10px) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, .1) !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 10000 !important;
    transition: all .3s ease !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    overflow: visible !important;
    transform: none !important;
    will-change: auto !important;
    pointer-events: auto !important;
}

.header.scrolled {
    background: rgba(255, 255, 255, .98) !important;
    box-shadow: 0 4px 6px rgba(0, 0, 0, .1) !important;
    box-sizing: border-box !important;
    width: 100% !important;
    /* 确保header在滚动时也是固定定位，不会随着页面滑动而消失 */
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 10000 !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    overflow: visible !important;
    transform: none !important;
    will-change: auto !important;
    pointer-events: auto !important;
}

.navbar {
    padding: 1rem 0;
    width: 100%;
    box-sizing: border-box;
    display: block;
    position: relative;
    z-index: 1000;
    /* 确保navbar在所有设备上都是100%宽度，不会超出屏幕 */
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
}

/* 确保nav-brand在移动端不会导致nav超出屏幕宽度 */
.nav-brand {
    flex-shrink: 0;
    width: auto;
}

/* 确保nav-actions在移动端不会导致nav超出屏幕宽度 */
.nav-actions {
    flex-shrink: 0;
    gap: 0.5rem;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 20px !important;
    overflow: hidden;
    flex-wrap: wrap;
    gap: 1rem;
}

/* 确保导航栏内的所有元素都保持固定显示 */
.nav-brand,
.nav-menu,
.nav-actions {
    position: relative;
    z-index: 1000;
}

.nav-brand {
    display: flex;
    align-items: center;
    height: 60px;
    flex-shrink: 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: transform .3s ease;
    height: 100%;
    flex-shrink: 0;
    white-space: nowrap;
}

/* 在移动端优化nav-brand和nav-actions的样式，确保它们不会导致nav超出屏幕宽度 */
@media (max-width: 768px) {
    .nav-brand {
        flex-shrink: 0;
    }
    
    .nav-actions {
        flex-shrink: 0;
        gap: 0.5rem;
    }
}

.logo:hover {
    transform: scale(1.05)
}

.logo-img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    transition: transform .3s ease;
    object-fit: cover;
}

/* 为所有logo图片添加圆形样式 */
img[src="images/logo.png"] {
    border-radius: 50%;
    width: 60px;
    height: 60px;
    object-fit: cover;
}

.logo:hover .logo-img {
    transform: rotate(5deg)
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
    line-height: 1;
}

.nav-menu {
    display: flex;
    align-items: center;
    height: 60px;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    width: auto;
    max-width: 100%;
}

/* 在移动端默认隐藏nav-menu，通过nav-toggle按钮控制显示 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    /* 当nav-menu被激活时显示 */
    .nav-menu.active {
        display: flex;
    }
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 1rem;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
    justify-content: center;
    width: auto;
    max-width: 100%;
}

.nav-link {
    color: #6b7280;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 6px;
    transition: all .3s ease;
    position: relative;
    text-decoration: none;
    white-space: nowrap;
    font-size: 0.9rem;
}

/* 在小屏幕上进一步调整nav-list的gap和nav-link的padding */
@media (max-width: 992px) {
    .nav-list {
        gap: 0.75rem;
    }
    
    .nav-link {
        padding: 6px 10px;
        font-size: 0.85rem;
    }
}

.nav-link:hover {
    color: #3b82f6;
    background-color: rgba(59, 130, 246, 0.1);
}

.nav-link.active {
    color: #3b82f6;
    background-color: rgba(59, 130, 246, 0.1);
}

/* Navigation Improvements for Mobile */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 6px;
    cursor: pointer;
    padding: 6px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1010;
    min-width: 36px;
    min-height: 36px;
}

.nav-toggle:focus {
    outline: 2px solid rgba(59, 130, 246, 0.3);
    outline-offset: 2px;
}

.nav-toggle:hover {
    background: rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.3);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.12);
    transform: translateY(-1px);
}

.nav-toggle:active {
    transform: translateY(0);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6, #2563eb);
    margin: 2px 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
    transform-origin: center;
    position: relative;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scale(0.8);
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Navigation Overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 999;
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Hero Section */
.hero {
    padding: 100px 0 60px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    position: relative;
    overflow: hidden
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

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

.hero-image {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
}

.dashboard-preview {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 1.5rem
}

.highlight {
    color: #3b82f6;
    display: inline;
    white-space: nowrap;
    font-size: 0.7em
}

.hero-subtitle {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: #6b7280
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-end
}

.dashboard-preview {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);
    transition: transform 0.3s ease
}

.dashboard-preview:hover {
    transform: scale(1.02)
}

/* Features Section */
.features {
    padding: 40px 0 80px 0;
    background-color: #fff
}

.section-header {
    text-align: center;
    margin-bottom: 3rem
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: .5rem
}

.section-subtitle {
    font-size: 1.125rem;
    color: #6b7280;
    text-align: center;
    width: 100%;
    margin: 0 auto 30px auto
}

/* 确保section-header中的subtitle也居中 */
.section-header .section-subtitle {
    text-align: center !important;
    width: 100%;
    max-width: 800px;
    margin: 0 auto 30px auto;
    display: block
}

/* 确保features section中的subtitle完全水平居中 */
.features .section-header .section-subtitle {
    text-align: center !important;
    width: 100% !important;
    max-width: 800px;
    margin: 0 auto 30px auto !important;
    display: block !important;
    box-sizing: border-box;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    padding: 0 10px;
}

.feature-card {
    background: #f8fafc;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px -1px rgba(0, 0, 0, .1), 0 1px 2px -1px rgba(0, 0, 0, .06);
    transition: all .3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
    opacity: 1
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease
}

.feature-card:hover::before {
    left: 100%
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 25px -3px rgba(0, 0, 0, .15), 0 8px 10px -2px rgba(0, 0, 0, .1)
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    color: #2563eb
}

.feature-card:hover .feature-title {
    color: #1e40af
}

.feature-icon {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: #3b82f6;
    transition: all .3s ease;
    display: inline-block
}

.feature-title {
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
    font-weight: 600
}

.feature-description {
    color: #6b7280;
    font-size: 0.7rem;
    line-height: 1.4;
    margin-bottom: 0
}

/* Solutions Section */
.solutions {
    padding: 80px 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%)
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem
}

/* Solutions Section */
.solutions {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.solutions::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="%23e5e7eb" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.15;
    animation: shimmer 15s infinite linear;
}

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

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

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 3rem;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s;
}

section.animate-in .solutions-grid {
    opacity: 1;
    transform: translateY(0);
}

.solution-item {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    background: white;
    padding: 3rem;
    border-radius: 24px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(25px);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

section.animate-in .solution-item {
    opacity: 1;
    transform: translateY(0);
}

.solution-item:nth-child(1) {
    transition-delay: 0.1s;
}

.solution-item:nth-child(2) {
    transition-delay: 0.2s;
}

.solution-item:nth-child(3) {
    transition-delay: 0.3s;
}

.solution-item:nth-child(4) {
    transition-delay: 0.4s;
}

.solution-item:nth-child(5) {
    transition-delay: 0.5s;
}

.solution-item:nth-child(6) {
    transition-delay: 0.6s;
}

.solution-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, #3b82f6, #2563eb, #1d4ed8);
    opacity: 0.8;
}

.solution-item:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
    border-color: rgba(59, 130, 246, 0.3);
}

.solution-number {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 900;
    font-size: 1.75rem;
    flex-shrink: 0;
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.4);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    animation: float 3s ease-in-out infinite;
}

.solution-item:hover .solution-number {
    transform: scale(1.2) rotate(12deg);
    box-shadow: 0 16px 40px rgba(59, 130, 246, 0.6);
    animation: none;
}

.solution-content h4 {
    font-size: 1.75rem;
    font-weight: 900;
    color: #1f2937;
    margin-bottom: 1rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.solution-content p {
    font-size: 1.25rem;
    color: #6b7280;
    line-height: 1.8;
    font-weight: 400;
    letter-spacing: -0.01em;
}

/* Platform Architecture Section */
.platform-architecture {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
}

.platform-architecture::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"><rect width="100" height="100" fill="none" stroke="%23e2e8f0" stroke-width="0.5" opacity="0.3"/><circle cx="50" cy="50" r="20" fill="none" stroke="%23e2e8f0" stroke-width="0.5" opacity="0.3"/></svg>');
    background-size: 100px 100px;
    opacity: 0.1;
    z-index: 0;
}

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

.platform-architecture .section-header {
    text-align: center;
    margin-bottom: 60px !important;
    padding: 20px 0 !important;
    display: block !important;
    height: auto !important;
}

.platform-architecture .section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #ffffff !important;
    margin-bottom: 20px !important;
    margin-top: 0 !important;
    background: none !important;
    -webkit-background-clip: unset !important;
    -webkit-text-fill-color: unset !important;
    background-clip: unset !important;
    line-height: 1.2;
    position: static !important;
    top: auto !important;
    left: auto !important;
    width: 100% !important;
    display: block !important;
    box-sizing: border-box !important;
}

.platform-architecture .section-header p {
    font-size: 1.2rem;
    color: #64748b;
    max-width: 700px;
    margin: 0 auto !important;
    margin-bottom: 30px !important;
    line-height: 1.6;
    font-weight: 400;
}

.platform-architecture .section-header div {
    font-size: 1.2rem;
    color: #e2e8f0 !important;
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 auto !important;
    margin-bottom: 30px !important;
    line-height: 1.6;
    font-weight: 400;
    box-sizing: border-box !important;
    text-align: center;
    letter-spacing: 0.02em;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Main Architecture Diagram */
.platform-architecture .layer-title {
    color: #374151 !important; /* 深灰色，适合浅白色背景 */
    font-weight: 600;
}

.platform-architecture-diagram {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.platform-architecture-diagram::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #3b82f6, #8b5cf6, #ec4899);
    border-radius: 20px;
    opacity: 0.1;
    z-index: -1;
}

/* Top User Access Layer */
.arch-top-section {
    margin-bottom: 30px;
}

.arch-user-layer {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 15px;
    padding: 25px;
    color: white;
    text-align: center;
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
    position: relative;
}

.arch-user-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.arch-user-description {
    font-size: 0.9rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Service Groups Grid */
.service-groups {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin: 30px 0;
}

.service-group {
    background: #f8fafc;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-group:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.service-group::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(to bottom, #3b82f6, #8b5cf6);
}

.service-group-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1e293b;
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-group-title i {
    font-size: 1.3rem;
    color: #3b82f6;
}

.service-items {
    display: grid;
    gap: 12px;
}

.service-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.service-item:hover {
    background: white;
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.service-item-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8rem;
}

.service-item-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: #334155;
}

/* Architecture Layers */
.arch-data-layer,
.arch-infrastructure-layer {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: 15px;
    padding: 30px;
    margin: 25px 0;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
}

.arch-data-layer::before,
.arch-infrastructure-layer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
}

.arch-layer-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1e293b;
    display: flex;
    align-items: center;
    gap: 12px;
}

.arch-layer-title i {
    font-size: 1.5rem;
    color: #3b82f6;
}

.arch-components {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.arch-component {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

.arch-component:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.arch-component-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1e293b;
    display: flex;
    align-items: center;
    gap: 8px;
}

.arch-component-title i {
    font-size: 1.1rem;
    color: #3b82f6;
}

.component-description {
    font-size: 0.9rem;
    color: #64748b;
    margin-bottom: 15px;
    line-height: 1.5;
}

.component-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.component-tag {
    background: #dbeafe;
    color: #1d4ed8;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-item {
    background: #f1f5f9;
    color: #475569;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* Flow Diagram */
.flow-diagram {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    margin: 30px 0;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 1;
    position: relative;
}

.flow-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 15px;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
}

.flow-step:hover .flow-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 25px rgba(59, 130, 246, 0.4);
}

.flow-title {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 5px;
}

.flow-description {
    font-size: 0.85rem;
    color: #64748b;
}

.flow-arrow {
    font-size: 2rem;
    color: #94a3b8;
    flex-shrink: 0;
}

/* Architecture Table */
.architecture-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.table-header {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
}

.table-header th {
    padding: 1.2rem;
    text-align: left;
    font-weight: 600;
    font-size: 1rem;
}

.table-body tr:nth-child(even) {
    background-color: #f8fafc;
}

.table-row {
    border-bottom: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.table-row:hover {
    background-color: #f1f5f9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.table-cell {
    padding: 1.2rem;
    vertical-align: top;
}

.layer-indicator {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.layer-badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    text-align: center;
}

.layer-user {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
}

.layer-service {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    color: white;
}

.layer-data {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
}

.layer-infrastructure {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
}

/* Stats Section */
.stats {
    padding: 60px 0;
    background: linear-gradient(135deg, #1e3a8a 0%, #312e81 100%);
    color: white
}

/* Stats Section */
.stats {
    padding: 120px 0;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.stats::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="%23e5e7eb" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.15;
    animation: shimmer 15s infinite linear;
}

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

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

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2.5rem;
}

.stat-item {
    text-align: center;
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

section.animate-in .stat-item {
    opacity: 1;
    transform: translateY(0);
}

.stat-item:nth-child(1) {
    transition-delay: 0.1s;
}

.stat-item:nth-child(2) {
    transition-delay: 0.2s;
}

.stat-item:nth-child(3) {
    transition-delay: 0.3s;
}

.stat-item:nth-child(4) {
    transition-delay: 0.4s;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.8s ease;
}

.stat-item:hover {
    transform: translateY(-10px) scale(1.03);
    background: rgba(255, 255, 255, 0.18);
    box-shadow: 0 25px 50px rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
}

.stat-item:hover::before {
    left: 100%;
}

.stat-icon {
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.75rem;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

.stat-item:hover .stat-icon {
    transform: scale(1.15) rotate(8deg);
    background: rgba(255, 255, 255, 0.35);
    box-shadow: 0 12px 30px rgba(255, 255, 255, 0.3);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.stat-label {
    font-size: 1.25rem;
    opacity: 0.95;
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.stat-description {
    font-size: 1rem;
    opacity: 0.8;
    font-weight: 400;
}

/* CTA Section */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    text-align: center
}

.cta-content {
    max-width: 800px;
    margin: 0 auto
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: .9
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: white;
    padding: 60px 0 20px;
    position: relative;
    overflow: hidden
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, .5), rgba(16, 185, 129, .5), transparent);
    animation: shimmer 3s infinite
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1
}

.footer-section h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    position: relative
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #10b981);
    border-radius: 3px
}

.footer-links {
    list-style: none
}

.footer-links li {
    margin-bottom: 0.75rem;
    opacity: 0;
    transform: translateX(-20px);
    animation: slideInLeft .5s ease forwards
}

.footer-section:nth-child(1) .footer-links li {
    animation-delay: .1s
}

.footer-section:nth-child(2) .footer-links li {
    animation-delay: .2s
}

.footer-section:nth-child(3) .footer-links li {
    animation-delay: .3s
}

.footer-section:nth-child(4) .footer-links li {
    animation-delay: .4s
}

.footer-links a {
    color: #d1d5db;
    text-decoration: none;
    transition: all .3s ease;
    display: inline-block;
    padding: .25rem 0
}

.footer-links a:hover {
    color: white;
    transform: translateX(5px)
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1rem
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: #374151;
    border-radius: 50%;
    transition: all .3s ease;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp .5s ease forwards
}

.footer-section:nth-child(1) .social-link:nth-child(1) {
    animation-delay: .5s
}

.footer-section:nth-child(1) .social-link:nth-child(2) {
    animation-delay: .6s
}

.footer-section:nth-child(1) .social-link:nth-child(3) {
    animation-delay: .7s
}

.social-link:hover {
    background: linear-gradient(135deg, #3b82f6, #10b981);
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 10px 20px rgba(59, 130, 246, .3)
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 32px;
    color: #9ca3af
}

.footer-bottom a {
    color: #d1d5db;
    text-decoration: none;
    margin: 0 0.5rem;
    transition: color .3s ease
}

.footer-bottom a:hover {
    color: white
}

.footer-links-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem
}

.friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    font-size: 0.875rem
}

.friend-links span {
    color: #9ca3af
}

.friend-links a {
    color: #d1d5db;
    text-decoration: none;
    transition: color .3s ease;
    padding: 0.25rem 0.5rem;
    border-radius: 4px
}

.friend-links a:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1)
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: center
}

.icp-link {
    display: flex;
    align-items: baseline;
    justify-content: center;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    margin: 0.5rem 0 0;
    width: 100%;
    gap: 0.5rem; /* 8px间距 */
}

.icp-link:hover {
    opacity: 0.8;
}

.icp-icon {
    color: #3b82f6;
    font-size: 0.875rem;
    flex-shrink: 0;
    line-height: 1.4;
    vertical-align: baseline;
}

.icp-info {
    font-size: 0.75rem;
    color: #6b7280;
    margin: 0;
    line-height: 1.4;
    flex-shrink: 0;
    display: inline;
    vertical-align: baseline;
    width: auto;
    max-width: none;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Contact Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-container {
    background-color: white;
    border-radius: 12px;
    padding: 32px;
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active .modal-container {
    transform: scale(1);
    opacity: 1;
}

.modal-close-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 24px;
    color: #6b7280;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.modal-close-btn:hover {
    background-color: #f3f4f6;
    color: #374151;
}

.modal-title {
    font-size: 24px;
    font-weight: 700;
    color: #111827;
    margin-bottom: 16px;
    text-align: center;
}

.modal-description {
    font-size: 16px;
    color: #4b5563;
    line-height: 1.6;
    text-align: center;
    margin-bottom: 24px;
}

.wechat-id {
    font-weight: 700;
    color: #10b981;
    font-size: 18px;
    background-color: #f0fdf4;
    padding: 4px 12px;
    border-radius: 6px;
    border: 1px solid #d1fae5;
}

.modal-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.modal-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.copy-btn {
    background-color: #3b82f6;
    color: white;
}

.copy-btn:hover {
    background-color: #2563eb;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.call-btn {
    background-color: #10b981;
    color: white;
}

.call-btn:hover {
    background-color: #059669;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.modal-btn:active {
    transform: translateY(0);
}

/* Responsive Modal */
@media (max-width: 640px) {
    .modal-container {
        padding: 24px;
        margin: 16px;
    }
    
    .modal-title {
        font-size: 20px;
    }
    
    .modal-description {
        font-size: 14px;
    }
    
    .wechat-id {
        font-size: 16px;
    }
    
    .modal-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .modal-btn {
        justify-content: center;
    }
}

/* Company Introduction Section */
.company-intro {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 100px 0;
    overflow: hidden;
    position: relative;
    min-height: 700px;
    display: flex;
    align-items: center;
}

.company-intro::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 8s infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

.intro-content {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 4rem;
    align-items: center;
    justify-items: center;
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards;
    max-width: 1300px;
    margin: 0 auto;
    width: 100%;
    padding: 0 2rem;
}

.intro-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: #1f2937;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    position: relative;
}

.intro-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #2563eb);
    border-radius: 2px;
}

.intro-description {
    font-size: 1.1rem;
    color: #6b7280;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    max-width: 90%;
}

.intro-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.intro-feature {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 1.25rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.intro-feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, #3b82f6, #2563eb);
    opacity: 0.8;
    transition: all 0.3s ease;
}

.intro-feature:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
    background: rgba(255, 255, 255, 0.9);
}

.intro-feature:hover::before {
    width: 100%;
    opacity: 0.1;
}

.intro-feature .feature-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.2);
}

.intro-feature:hover .feature-icon {
    transform: scale(1.15) rotate(8deg);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

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

.intro-feature .feature-content h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.intro-feature .feature-content p {
    font-size: 0.95rem;
    color: #6b7280;
    line-height: 1.6;
}

.intro-cta {
    text-align: left;
}

.intro-cta .btn {
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 600;
    padding: 1rem 2rem;
    font-size: 1rem;
}

.intro-cta .btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.intro-cta .btn:hover::before {
    width: 300px;
    height: 300px;
}

.intro-cta .btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(59, 130, 246, 0.4);
}

.trial-note {
    margin-top: 1.2rem;
    font-size: 0.9rem;
    color: #6b7280;
    font-style: italic;
}

.intro-image {
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

/* Enhanced Device Showcase */
.device-showcase {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    position: relative;
    width: 100%;
    max-width: 650px;
    margin: 0 auto;
    height: 550px;
    perspective: 1200px;
    transform-style: preserve-3d;
}

.device-showcase.enhanced-layout {
    perspective: 1200px;
    transform-style: preserve-3d;
}

.mac-device {
    position: absolute;
    z-index: 2;
    opacity: 0;
    transform: translateX(-50px) rotateY(-10deg);
    animation: slideInLeft 1s cubic-bezier(0.4, 0, 0.2, 1) 0.3s forwards;
    top: 0;
    left: 50%;
    transform: translateX(-50%) rotateY(-10deg);
}

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

.mobile-device {
    position: absolute;
    z-index: 1;
    opacity: 0;
    transform: translateX(50px) rotateY(10deg);
    animation: slideInRight 1s cubic-bezier(0.4, 0, 0.2, 1) 0.6s forwards;
    top: 240px;
    left: 62%;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px) rotateY(10deg);
    }

    to {
        opacity: 1;
        transform: translateX(0) rotateY(0);
    }
}

.mac-device .device-frame {
    background: #1a1a1a;
    border-radius: 24px;
    padding: 24px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.25);
    position: relative;
    max-width: 650px;
    margin: 0 auto;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.mac-device .device-frame.modern-frame {
    background: linear-gradient(145deg, #2c3e50, #1a1a1a);
    box-shadow: 0 35px 70px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.mac-device:hover .device-frame {
    transform: scale(1.03) rotate(2deg);
    box-shadow: 0 45px 90px rgba(0, 0, 0, 0.35);
}

.mac-device .device-screen {
    background: #000;
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16/10;
}

.mac-device .device-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 35px;
    background: linear-gradient(to bottom, #333, #000);
    z-index: 1;
}

.mac-device .device-screen::after {
    content: '• • •';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    color: #666;
    font-size: 14px;
    letter-spacing: 10px;
    z-index: 2;
}

.mac-screen {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.mac-device .device-base {
    width: 180px;
    height: 10px;
    background: linear-gradient(to bottom, #4a5568, #2c3e50);
    margin: 15px auto 0;
    border-radius: 0 0 12px 12px;
}

.mobile-device {
    position: relative;
    z-index: 1;
    margin-top: -2rem;
}

.mobile-device .device-frame {
    background: #1a1a1a;
    border-radius: 32px;
    padding: 10px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    position: relative;
    max-width: 280px;
    margin: 0 auto;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 100%;
}

.mobile-device .device-frame.modern-frame {
    background: linear-gradient(145deg, #2c3e50, #1a1a1a);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-device:hover .device-frame {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
}

.mobile-device .device-screen {
    background: #000;
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 9/19.5;
}

.mobile-device .device-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 25px;
    background: #1a1a1a;
    border-radius: 0 0 15px 15px;
    z-index: 1;
}

.mobile-screen {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

/* 修复重复的样式定义并优化设备展示部分 */
.device-showcase {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    position: relative;
    width: 100%;
    max-width: 650px;
    margin: 0 auto;
    /* 增加容器高度以容纳重叠布局 */
    height: 550px;
    perspective: 1200px;
    transform-style: preserve-3d;
}

.device-showcase.enhanced-layout {
    perspective: 1200px;
    transform-style: preserve-3d;
}

.mac-device {
    position: absolute;
    z-index: 2;
    opacity: 0;
    transform: translateX(-50px) rotateY(-10deg);
    animation: slideInLeft 1s cubic-bezier(0.4, 0, 0.2, 1) 0.3s forwards;
    /* 调整Mac设备位置 */
    top: 0;
    left: 50%;
    transform: translateX(-50%) rotateY(-10deg);
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px) rotateY(-10deg);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) rotateY(0);
    }
}

.mobile-device {
    position: absolute;
    z-index: 1;
    opacity: 0;
    transform: translateX(50px) rotateY(10deg);
    animation: slideInRight 1s cubic-bezier(0.4, 0, 0.2, 1) 0.6s forwards;
    /* 调整移动设备位置，实现部分重叠效果 */
    top: 240px;
    left: 62%;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px) rotateY(10deg);
    }

    to {
        opacity: 1;
        transform: translateX(0) rotateY(0);
    }
}

.mac-device .device-frame {
    background: linear-gradient(145deg, #2c3e50, #1a1a1a);
    border-radius: 24px;
    padding: 24px;
    box-shadow: 0 35px 70px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.08);
    position: relative;
    max-width: 650px;
    margin: 0 auto;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.mac-device:hover .device-frame {
    transform: scale(1.03) rotate(2deg);
    box-shadow: 0 45px 90px rgba(0, 0, 0, 0.35);
}

.mac-device .device-screen {
    background: #000;
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16/10;
}

.mac-device .device-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 35px;
    background: linear-gradient(to bottom, #333, #000);
    z-index: 1;
}

.mac-device .device-screen::after {
    content: '• • •';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    color: #666;
    font-size: 14px;
    letter-spacing: 10px;
    z-index: 2;
}

.mac-screen {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.mac-device .device-base {
    width: 150px;
    height: 8px;
    background: linear-gradient(to bottom, #4a5568, #2c3e50);
    margin: 10px auto 0;
    border-radius: 0 0 8px 8px;
}

.mobile-device .device-frame {
    background: linear-gradient(145deg, #2c3e50, #1a1a1a);
    border-radius: 32px;
    padding: 10px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.05);
    position: relative;
    max-width: 280px;
    margin: 0 auto;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-device:hover .device-frame {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
}

.mobile-device .device-screen {
    background: #000;
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 9/19.5;
}

.mobile-device .device-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 25px;
    background: #1a1a1a;
    border-radius: 0 0 15px 15px;
    z-index: 1;
}

.mobile-device .device-frame {
    border-radius: 32px;
    padding: 10px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    position: relative;
    max-width: 280px;
    margin: 0 auto;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 100%;
}

.mobile-device .device-frame.modern-frame {
    background: linear-gradient(145deg, #2c3e50, #1a1a1a);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-device:hover .device-frame {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
}

.mobile-device .device-screen {
    background: #000;
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 9/19.5;
}

.mobile-device .device-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 25px;
    background: #1a1a1a;
    border-radius: 0 0 15px 15px;
    z-index: 1;
}

.mobile-screen {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 25px;
    }

    .service-groups {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }

    .problems-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 992px) and (min-width: 577px) {
    .hero {
        padding: 100px 0 80px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    section {
        padding: 70px 0;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .intro-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .intro-text {
        order: 2;
    }

    .intro-image {
        order: 1;
    }

    .intro-image img {
        max-width: 80%;
        margin: 0 auto;
    }

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



    .company-intro {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 2rem;
    }

    .company-logo {
        margin-right: 0;
        margin-bottom: 1rem;
    }

    .flow-diagram {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }

    .flow-step {
        flex-direction: row;
        align-items: center;
        text-align: left;
        gap: 1rem;
    }

    .flow-icon {
        margin-bottom: 0;
        margin-right: 1rem;
    }

    .device-showcase {
        height: 350px;
    }

    .mac-device .device-frame {
        max-width: 320px;
        padding: 15px;
    }

    .mobile-device .device-frame {
        max-width: 180px;
        padding: 10px;
    }

    .mobile-device {
        top: 160px;
        left: 60%;
    }
}

@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-text {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-image {
        justify-content: center;
    }

    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .service-groups {
        grid-template-columns: 1fr;
    }

    .arch-components {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }

    .service-groups {
        grid-template-columns: 1fr;
    }

    .arch-components {
        grid-template-columns: 1fr;
    }

    .problems-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 100%;
        padding: 0 15px;
    }

    .hero {
        padding: 100px 0 80px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-section {
        padding: 1rem 0;
    }

    .footer-social {
        justify-content: center;
    }

    /* 确保移动端导航栏元素正确显示 */
    .nav-toggle {
        display: flex;
        /* 确保菜单按钮在移动端可见 */
        position: relative;
        z-index: 1010;
    }

    /* 在移动端保持联系方式和菜单按钮可见 */
    .nav-actions {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        /* 确保联系方式在移动端可见 */
        position: relative;
        z-index: 1000;
    }
    
    .nav-actions a,
    .nav-actions button {
        display: flex;
        align-items: center;
        justify-content: center;
        /* 确保按钮和链接在移动端可见 */
        position: relative;
        z-index: 1000;
    }
    
    /* 隐藏移动端的免费试用按钮，只保留热线电话和菜单按钮 */
    .nav-actions .btn {
        display: none;
    }

    /* 移动端右侧滑出菜单样式 */
    .nav-menu {
        /* 移除固定定位，改为相对定位，因为 .header 已经是固定定位了 */
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 350px;
        height: 100vh;
        background: white;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.15);
        transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        /* 确保菜单在最上层 */
        z-index: 999;
        padding: 6rem 2rem 2rem;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    /* 确保移动端导航栏布局正确 */
    .navbar {
        /* 确保导航栏在移动端也保持固定 */
        position: relative;
        z-index: 1000;
    }
    
    /* 确保移动端容器布局正确 */
    .navbar .container {
        /* 确保容器内的元素正确排列 */
        display: flex;
        align-items: center;
        justify-content: space-between;
        /* 确保容器不会限制子元素的显示 */
        overflow: visible;
        /* 确保容器宽度正确 */
        width: 100%;
        box-sizing: border-box;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
        width: 100%;
    }
    
    .nav-link {
        display: block;
        width: 100%;
        padding: 12px 20px;
        font-size: 1.1rem;
        border-radius: 8px;
        transition: all 0.3s ease;
    }
    
    /* 在移动端菜单中显示所有页面入口链接 */
    .nav-menu .nav-actions {
        margin-top: 2rem;
        flex-direction: column;
        gap: 1rem;
        width: 100%;
    }
    
    .nav-menu .nav-actions a,
    .nav-menu .nav-actions button {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 100%;
        padding: 12px 20px;
        font-size: 1rem;
        border-radius: 8px;
        text-decoration: none;
        transition: all 0.3s ease;
    }
    
    .nav-menu .hotline-link {
        justify-content: center;
        font-size: 0.95rem;
        padding: 12px 20px;
        width: 100%;
        background: rgba(59, 130, 246, 0.1);
        color: #3b82f6;
    }
    
    .nav-menu .hotline-text {
        display: inline;
        margin-left: 0.5rem;
    }
    
    .nav-menu .btn {
        background: #3b82f6;
        color: white;
        border: none;
        cursor: pointer;
    }
    
    .nav-menu .btn:hover {
        background: #2563eb;
        transform: translateY(-2px);
    }

    .hotline-link::after {
        content: "173-6006-2006";
        font-size: 0.85rem;
    }

    .hero-actions {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    /* 小屏幕下使用2列布局 */
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .company-intro {
        padding: 60px 0;
        min-height: auto;
    }

    .intro-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: center;
        justify-items: center;
    }

    .intro-title {
        font-size: 1.875rem;
        margin-bottom: 1rem;
    }

    .intro-description {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }

    .intro-features {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-bottom: 1.5rem;
    }

    .intro-feature {
        justify-content: flex-start;
        text-align: left;
        padding: 0.75rem;
    }

    .intro-feature .feature-icon {
        width: 40px;
        height: 40px;
    }

    .intro-feature .feature-content h4 {
        font-size: 0.95rem;
    }

    .intro-feature .feature-content p {
        font-size: 0.8rem;
    }

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

    .device-showcase {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
        position: relative;
        width: 100%;
        max-width: 350px;
        margin: 0 auto;
    }

    .mac-device .device-frame {
        max-width: 400px;
        padding: 16px;
        width: 100%;
        margin: 0 auto;
    }

    .mobile-device .device-frame {
        max-width: 220px;
        padding: 10px;
        width: 100%;
        margin: 0 auto;
    }

    .mobile-device {
        margin-top: -1.5rem;
    }

    .flow-diagram {
        flex-direction: column;
        gap: 1.5rem;
    }

    .flow-arrow {
        display: none;
    }

    .flow-step {
        order: initial;
    }

    .problems-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .problem-card {
        padding: 1.25rem;
    }
}

@media (max-width: 576px) {
    .container {
        width: 100%;
        padding: 0 15px;
    }

    .hero {
        padding: 80px 0 60px;
    }

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

    section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .feature-title {
        font-size: 0.75rem;
    }

    .feature-description {
        font-size: 0.65rem;
    }

    .solution-item {
        padding: 30px 20px;
    }

    .cta-content h2 {
        font-size: 2rem;
    }

    .footer {
        padding: 40px 0 15px;
    }

    .footer-content {
        gap: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .footer-bottom {
        padding-top: 1.5rem;
    }

    .footer-bottom a {
        display: block;
        margin: 0.5rem 0;
    }

    .device-showcase {
        height: 300px;
    }

    .mac-device .device-frame {
        max-width: 280px;
        padding: 12px;
        width: 100%;
    }

    .mobile-device .device-frame {
        max-width: 160px;
        padding: 8px;
        width: 100%;
    }

    .mobile-device {
        top: 140px;
        left: 60%;
    }

    .flow-diagram {
        gap: 1rem;
    }

    .flow-icon {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }
    
    /* 超小屏幕下使用1列布局 */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

/* Problems Section */
.problems {
    padding: 120px 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    position: relative;
    overflow: hidden;
    animation: fadeIn 1s ease-out;
}

.problems::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    animation: rotate 25s linear infinite;
    z-index: 0;
}

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

.section-header {
    text-align: center;
    width: 100%;
    margin-bottom: 4rem;
}

.section-title {
    width: 100%;
    text-align: center;
    color: white;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.section-subtitle {
    width: 100%;
    text-align: center;
    color: #94a3b8;
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s;
}

section.animate-in .problems-grid {
    opacity: 1;
    transform: translateY(0);
}

.problem-card {
    background: rgba(30, 41, 59, 0.7);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(71, 85, 105, 0.5);
    backdrop-filter: blur(20px);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

section.animate-in .problem-card {
    opacity: 1;
    transform: translateY(0);
}

.problem-card:nth-child(1) {
    transition-delay: 0.1s;
}

.problem-card:nth-child(2) {
    transition-delay: 0.2s;
}

.problem-card:nth-child(3) {
    transition-delay: 0.3s;
}

.problem-card:nth-child(4) {
    transition-delay: 0.4s;
}

.problem-card:nth-child(5) {
    transition-delay: 0.5s;
}

.problem-card:nth-child(6) {
    transition-delay: 0.6s;
}

.problem-card:nth-child(7) {
    transition-delay: 0.7s;
}

.problem-card:nth-child(8) {
    transition-delay: 0.8s;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #3b82f6, #60a5fa, #93c5fd);
    opacity: 0.9;
}

.problem-card:hover {
    transform: translateY(-15px) scale(1.03);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    border-color: rgba(59, 130, 246, 0.5);
}

.problem-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.4);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.problem-card:hover .problem-icon {
    transform: scale(1.15) rotate(-8deg);
    box-shadow: 0 15px 35px rgba(59, 130, 246, 0.5);
}

.problem-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    line-height: 1.4;
    letter-spacing: -0.02em;
}

.problem-description {
    font-size: 1rem;
    color: #cbd5e1;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.problem-stat {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.25rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(37, 99, 235, 0.15));
    border-radius: 16px;
    border-left: 5px solid #3b82f6;
    transition: all 0.4s ease;
}

.problem-card:hover .problem-stat {
    transform: translateX(8px);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(37, 99, 235, 0.2));
}

.problem-stat .stat-number {
    font-size: 2.25rem;
    font-weight: 800;
    color: #93c5fd;
    text-shadow: 0 2px 4px rgba(59, 130, 246, 0.3);
}

.problem-stat .stat-label {
    font-size: 1.1rem;
    color: #e2e8f0;
    line-height: 1.5;
    font-weight: 500;
}

/* Animation Keyframes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {

    0%,
    20%,
    53%,
    80%,
    100% {
        transform: translate3d(0, 0, 0);
    }

    40%,
    43% {
        transform: translate3d(0, -30px, 0);
    }

    70% {
        transform: translate3d(0, -15px, 0);
    }

    90% {
        transform: translate3d(0, -4px, 0);
    }
}

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

    100% {
        transform: translateX(100%);
    }
}

@keyframes float {
    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0);
    }
}

@keyframes glow {

    0%,
    100% {
        box-shadow: 0 0 10px rgba(59, 130, 246, 0.3);
    }

    50% {
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.6);
    }
}

/* Section Subheading Styles */
.section-subheading {
    font-size: 2rem;
    font-weight: 600;
    color: white;
    margin-bottom: 1.5rem;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

/* Mobile Responsive for Section Subheading */
@media (max-width: 576px) {
    .section-subheading {
        font-size: 1.5rem;
        margin-bottom: 1rem;
        color: white;
    }
}