/* Import Design System and Enhanced Styles */
@import url('design-system.css');
@import url('components-enhanced.css');
@import url('layout-enhancements.css');
@import url('optimizations.css');
@import url('touch-optimization.css');
@import url('performance-optimization.css');

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

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;
    /* 设置最小宽度，防止布局变形 */
    overflow-x: hidden;
    /* 防止水平滚动条 */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    min-width: 300px;
    /* 确保容器有最小宽度 */
    width: 100%;
    box-sizing: border-box;
}

/* 确保section-header宽度也与container一致 */
.section-header {
    width: 100%;
    box-sizing: border-box;
    position: static;
    overflow: visible;
}



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

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;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

/* 确保所有section-subtitle类的p标签宽度与div一致 */
.section-subtitle {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    display: block !important;
}

/* 最高优先级的选择器，直接针对stats部分的p标签 */
.stats > .container > .section-header > p.section-subtitle {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    display: block !important;
    margin: 0 !important;
    text-align: center !important;
    position: static !important;
    float: none !important;
}

a {
    color: #3b82f6;
    text-decoration: none;
    transition: color 0.3s 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 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.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%;
}

/* Enhanced Header */
.header {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1) !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 10000 !important;
    transition: all 0.3s 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 {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 10000 !important;
    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;
}

.navbar {
    padding: 1rem 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: transform 0.3s ease;
}

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

.logo-img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    transition: transform 0.3s 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;
}

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

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: #6b7280;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: #3b82f6;
    transition: transform 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.hotline-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
    white-space: nowrap;
}

.hotline-link:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
    color: white;
    text-decoration: none;
}

.hotline-link i {
    font-size: 1rem;
    animation: phone-ring 1.5s ease-in-out infinite;
}

@keyframes phone-ring {

    0%,
    100% {
        transform: rotate(0deg);
    }

    10%,
    30% {
        transform: rotate(-10deg);
    }

    20%,
    40% {
        transform: rotate(10deg);
    }

    50% {
        transform: rotate(0deg);
    }
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle .bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Responsive Design Styles */
@media (max-width: 1200px) {
    .container {
        padding: 0 20px;
    }

    .nav-list {
        gap: 1.5rem;
    }

    .logo-text {
        font-size: 1.25rem;
    }
}

@media (max-width: 1024px) {
    .nav-list {
        gap: 1rem;
    }

    .nav-link {
        padding: 8px 10px;
        font-size: 0.95rem;
    }

    .hotline-text {
        display: none;
    }

    .hotline-link {
        padding: 10px;
    }
}

@media (max-width: 900px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        flex-direction: column;
        align-items: flex-start;
        z-index: 999;
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .nav-list {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }

    .nav-item {
        width: 100%;
        border-bottom: 1px solid #f1f5f9;
    }

    .nav-link {
        display: block;
        padding: 15px 0;
        width: 100%;
    }

    .nav-link::after {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    overflow: hidden;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    align-items: center;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: #1f2937;
}

.hero-title .highlight {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    display: inline;
    white-space: nowrap;
    font-size: 0.7em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #6b7280;
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

.hero-image {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.dashboard-preview {
    width: 100%;
    max-width: 700px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Section Styles */
section {
    padding: 140px 0;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(60px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 确保section动画完成后才显示子元素 */
section.animate-in * {
    visibility: visible;
}

.section-header {
    text-align: center;
    margin-bottom: 6rem;
    position: relative;
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s;
}

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

.section-header::before {
    content: '';
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 6px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 3px;
    opacity: 0.8;
    animation: pulse 3s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.8;
    }

    50% {
        opacity: 1;
    }
}

.section-title {
    font-size: 4rem;
    font-weight: 900;
    color: #1f2937;
    margin-bottom: 2rem;
    line-height: 1.1;
    background: linear-gradient(135deg, #1f2937 0%, #3b82f6 100%);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.03em;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
}

.section-subtitle {
    font-size: 1.5rem;
    color: #6b7280;
    max-width: 100%;
    width: 100%;
    margin: 0 auto;
    line-height: 1.8;
    font-weight: 400;
    letter-spacing: -0.01em;
    text-align: center;
}

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

/* Company Introduction Section */
.company-intro {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 160px 0;
    overflow: hidden;
    position: relative;
    min-height: 800px;
    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, 0.4), transparent);
    animation: shimmer 10s infinite;
    opacity: 0.6;
}

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

    100% {
        left: 100%;
    }
}

.intro-content {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 6rem;
    align-items: center;
    justify-items: center;
    position: relative;
    opacity: 0;
    transform: translateY(40px);
    animation: fadeInUp 1.2s ease forwards;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

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

.intro-title {
    font-size: 3.5rem;
    font-weight: 900;
    color: #1f2937;
    margin-bottom: 2rem;
    line-height: 1.1;
    background: linear-gradient(135deg, #1f2937 0%, #3b82f6 100%);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.03em;
    text-shadow: 0 6px 12px rgba(0, 0, 0, 0.08);
}

.intro-description {
    font-size: 1.375rem;
    color: #6b7280;
    line-height: 1.9;
    margin-bottom: 3rem;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.intro-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.intro-feature {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 1.75rem;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.intro-feature:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.98);
    border-color: rgba(16, 185, 129, 0.3);
}

.intro-feature .feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 12px 30px rgba(16, 185, 129, 0.4);
}

.intro-feature:hover .feature-icon {
    transform: scale(1.2) rotate(12deg);
    box-shadow: 0 16px 40px rgba(16, 185, 129, 0.5);
}

.intro-feature .feature-icon i {
    font-size: 1.75rem;
    color: white;
}

.intro-feature .feature-content h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.intro-feature .feature-content p {
    font-size: 0.9rem;
    color: #6b7280;
    line-height: 1.5;
    font-weight: 400;
}

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

.intro-cta .btn {
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
    padding: 1rem 2rem;
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
}

.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 35px rgba(16, 185, 129, 0.4);
}

.trial-note {
    margin-top: 1.25rem;
    font-size: 0.95rem;
    color: #6b7280;
    font-weight: 400;
}

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

.device-showcase {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    position: relative;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.mac-device {
    position: relative;
    z-index: 2;
    opacity: 0;
    transform: translateX(-50px);
    animation: slideInLeft 1s ease 0.3s forwards;
}

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

.mobile-device {
    position: relative;
    z-index: 1;
    margin-top: -1.5rem;
    opacity: 0;
    transform: translateX(50px);
    animation: slideInRight 1s ease 0.6s forwards;
}

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

.mac-device .device-frame {
    background: #2c3e50;
    border-radius: 10px;
    padding: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
    position: relative;
    max-width: 450px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 100%;
    margin: 0 auto;
}

.mac-device:hover .device-frame {
    transform: scale(1.05) translateY(-10px);
    box-shadow: 0 35px 70px rgba(0, 0, 0, 0.2);
}

.mac-device .device-screen {
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16/10;
}

.mac-device .device-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 30px;
    background: linear-gradient(to bottom, #333, #000);
    z-index: 1;
}

.mac-device .device-screen::after {
    content: '• • •';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    color: #666;
    font-size: 12px;
    letter-spacing: 8px;
    z-index: 2;
}

.mac-screen {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
}

.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 {
    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: 240px;
    margin: 0 auto;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 100%;
}

.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;
}

/* Features Section */
.features {
    background: white;
    padding: 70px 0 140px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #e5e7eb;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

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

.feature-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
}

.feature-description {
    color: #6b7280;
    line-height: 1.6;
    font-size: 0.9rem;
}

/* Solutions Section */
.solutions {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 160px 0;
    position: relative;
    overflow: hidden;
}

.solutions::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.5), rgba(37, 99, 235, 0.5), transparent);
    animation: shimmer 3s infinite;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-top: 5rem;
    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);
}

.solution-item:hover .solution-number {
    transform: scale(1.2) rotate(12deg);
    box-shadow: 0 16px 40px rgba(59, 130, 246, 0.6);
}

.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;
}

/* Problems Section */
.problems {
    padding: 160px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.problems::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(239, 68, 68, 0.5), rgba(245, 158, 11, 0.5), transparent);
    animation: shimmer 3s infinite;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 3rem;
    margin-top: 5rem;
    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: white;
    border-radius: 24px;
    padding: 3rem;
    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 .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::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, #ef4444, #f59e0b, #10b981);
    opacity: 0.8;
}

.problem-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
    border-color: rgba(239, 68, 68, 0.3);
}

.problem-icon {
    width: 72px;
    height: 72px;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #ef4444, #f59e0b);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.75rem;
    box-shadow: 0 12px 30px rgba(239, 68, 68, 0.4);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.problem-card:hover .problem-icon {
    transform: scale(1.2) rotate(-12deg);
    box-shadow: 0 16px 40px rgba(239, 68, 68, 0.6);
}

.problem-title {
    font-size: 1.75rem;
    font-weight: 900;
    color: #1f2937;
    margin-bottom: 1.25rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.problem-description {
    font-size: 1.25rem;
    color: #6b7280;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.problem-stat {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #fef3c7, #fef9c3);
    border-radius: 16px;
    border-left: 6px solid #f59e0b;
    transition: all 0.4s ease;
}

.problem-card:hover .problem-stat {
    transform: translateX(5px);
    background: linear-gradient(135deg, #fef9c3, #fef3c7);
}

.problem-stat .stat-number {
    font-size: 2rem;
    font-weight: 900;
    color: #d97706;
    text-shadow: 0 2px 4px rgba(217, 119, 6, 0.2);
}

.problem-stat .stat-label {
    font-size: 1.125rem;
    color: #92400e;
    line-height: 1.4;
    font-weight: 600;
}

/* Stats Section */
.stats {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    padding: 160px 0;
    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-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 4rem;
    text-align: center;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s;
}

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

.stat-item {
    padding: 3rem;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 24px;
    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: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    font-size: 2rem;
    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: 4rem;
    font-weight: 900;
    margin-bottom: 1rem;
    line-height: 1;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.stat-label {
    font-size: 1.5rem;
    opacity: 0.95;
    margin-bottom: 0.75rem;
    font-weight: 700;
}

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

/* CTA Section */
.cta {
    background: #f8fafc;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.25rem;
    color: #6b7280;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 1.5rem;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.footer-logo img {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.footer-logo:hover img {
    transform: scale(1.05);
}

.footer-brand-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.footer-brand-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
    margin: 0;
    line-height: 1.2;
}

.footer-brand-description {
    font-size: 0.875rem;
    color: #9ca3af;
    margin: 0;
    line-height: 1.4;
}

.footer-logo p {
    color: #9ca3af;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.social-link:hover {
    background: #3b82f6;
    transform: translateY(-2px);
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #ffffff;
    position: relative;
    display: inline-block;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.footer-section ul li a {
    color: #9ca3af;
    transition: color 0.3s ease;
    text-decoration: none;
}

.footer-section ul li a:hover {
    color: white;
}

.footer-section ul li i {
    margin-right: 0.5rem;
    color: #3b82f6;
    width: 16px;
    text-align: center;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 32px;
    color: #9ca3af;
    font-size: 0.9rem;
}

.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;
    justify-content: center;
}

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

.friend-links a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s 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;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    text-align: center;
    width: 100%;
    box-sizing: border-box;
    flex-direction: row;
    line-height: 1.5;
}

.footer-info p {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    width: 100%;
    margin: 0;
}

.footer-info a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
    padding: 0 0.2rem;
}

.footer-info a:not(:last-child)::after {
    content: "|";
    position: absolute;
    right: -0.7rem;
    color: #6b7280;
    font-weight: normal;
}

.footer-info a:hover {
    color: #3b82f6;
}

.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 !important;
    max-width: none !important;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid #e5e7eb;
}

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1f2937;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #6b7280;
    padding: 0.5rem;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: #f3f4f6;
    color: #1f2937;
}

.modal-body {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }

    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }

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

@media (max-width: 992px) {
    .container {
        max-width: 720px;
        padding: 0 20px;
        width: 100%;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

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

    .features-grid,
    .solutions-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

    .problems {
        padding: 100px 0;
    }

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

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

@media (max-width: 768px) {
    .container {
        max-width: 540px;
        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;
    }

    .problems {
        padding: 80px 0;
    }

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

    .problem-card {
        padding: 1.5rem;
    }

    .problem-icon {
        width: 50px;
        height: 50px;
        margin-bottom: 1rem;
    }

    .problem-title {
        font-size: 1.25rem;
    }

    .problem-description {
        font-size: 0.9rem;
    }

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

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

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

    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        transition: transform 0.3s ease;
        max-height: calc(100vh - 80px);
        overflow-y: auto;
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .nav-list {
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-actions {
        flex-direction: column;
        gap: 0.75rem;
        align-items: stretch;
    }

    .hotline-link {
        justify-content: center;
        font-size: 0.85rem;
        padding: 10px 16px;
    }

    .hotline-text {
        display: none;
    }

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

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

    .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;
    }
}

@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;
    }

    .problems {
        padding: 60px 0;
    }

    .stats {
        padding: 80px 0;
    }

    .problems-grid {
        gap: 1rem;
    }

    .problem-card {
        padding: 1.25rem;
    }

    .problem-icon {
        width: 45px;
        height: 45px;
        margin-bottom: 0.75rem;
    }

    .problem-title {
        font-size: 1.1rem;
    }

    .problem-description {
        font-size: 0.85rem;
    }

    .stats-grid {
        gap: 1rem;
    }

    .stat-item {
        padding: 1.5rem;
    }

    .stat-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 1rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .stat-label {
        font-size: 1.1rem;
    }

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

    .section-subheading {
        font-size: 1.5rem;
        margin-bottom: 1rem;
        color: white;
    }

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

    .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;
    }

    .friend-links {
        flex-direction: column;
        gap: 0.5rem;
        align-items: center;
    }

    .friend-links span {
        margin-bottom: 0.5rem;
    }

    .mac-device .device-frame {
        max-width: 280px;
        padding: 12px;
        width: 100%;
        margin: 0 auto;
    }

    .mobile-device .device-frame {
        max-width: 160px;
        padding: 8px;
        width: 100%;
        margin: 0 auto;
    }

    .mobile-device {
        margin-top: -1rem;
    }
}