/* ===== CSS变量定义 ===== */
:root {
    /* 主色调 - 橙色系 */
    --primary-orange: #FF6B35;
    --primary-orange-light: #FF8A5B;
    --primary-orange-dark: #E55A2B;
    --primary-orange-gradient: linear-gradient(135deg, #FF6B35 0%, #FF8A5B 100%);
    
    /* 辅助色 */
    --secondary-blue: #2E86AB;
    --secondary-blue-light: #A23B72;
    --accent-yellow: #F18F01;
    --accent-purple: #C73E1D;
    
    /* 中性色 */
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    /* 文字颜色 */
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    --text-white: #FFFFFF;
    
    /* 背景色 */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9EEEA;
    --bg-dark: #1F2937;
    --bg-orange-light: rgba(255, 107, 53, 0.05);
    --bg-orange-medium: rgba(255, 107, 53, 0.1);
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-orange: 0 10px 25px rgba(255, 107, 53, 0.3);
    
    /* 边框半径 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* 过渡动画 */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* 字体 */
    --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Inter', 'Noto Sans SC', sans-serif;
}

/* ===== 基础重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

/* ===== 通用样式 ===== */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

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

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-orange-light);
    color: var(--primary-orange);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 107, 53, 0.2);
}

.section-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.title-highlight {
    background: var(--primary-orange-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===== 按钮样式 ===== */
.btn-primary {
    background: var(--primary-orange-gradient);
    color: var(--text-white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-orange);
}

.btn-hero-primary {
    background: var(--primary-orange-gradient);
    color: var(--text-white);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-hero-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-orange);
}

.btn-hero-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--gray-200);
    padding: 1rem 2rem;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-hero-secondary:hover {
    border-color: var(--primary-orange);
    color: var(--primary-orange);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.brand-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-orange-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 1.125rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-orange);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary-orange);
    border-radius: 50%;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

/* ===== 主页横幅 ===== */
.hero-section {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

/* ===== 轮播图样式 ===== */
.hero-carousel {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.carousel-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.carousel-slide.active {
    opacity: 1;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
}

/* 轮播图控制按钮 */
.carousel-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    z-index: 3;
    display: flex;
    justify-content: space-between;
    padding: 0 2rem;
    transform: translateY(-50%);
}

.carousel-btn {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.carousel-btn:hover {
    background: var(--white);
    color: var(--primary-orange);
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

/* 轮播图指示器 */
.carousel-indicators {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    gap: 0.75rem;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all var(--transition-normal);
}

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

.indicator:hover {
    background: rgba(255, 255, 255, 0.8);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
    min-height: 100vh;
    padding-top: 70px;
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-orange-light);
    color: var(--primary-orange);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 107, 53, 0.2);
}

.hero-title {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.title-line {
    display: block;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--primary-orange-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== 浮动卡片 ===== */
.hero-visual {
    position: relative;
    height: 600px;
}

.visual-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.floating-card {
    position: absolute;
    background: var(--white);
    border-radius: var(--radius-2xl);
    padding: 1.5rem;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-normal);
    cursor: pointer;
    animation: float 6s ease-in-out infinite;
}

.floating-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: var(--shadow-orange);
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 2s;
}

.card-3 {
    top: 30%;
    right: 10%;
    animation-delay: 4s;
}

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-orange-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.card-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.card-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ===== 滚动指示器 ===== */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 2;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-orange);
    margin: 0 auto 0.5rem;
    transition: all var(--transition-normal);
}

.scroll-arrow:hover {
    background: var(--primary-orange);
    color: var(--text-white);
}

.scroll-text {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== 关于我们 ===== */
.about-section {
    padding: 6rem 0;
    /* background: var(--bg-secondary); */
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.about-item {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-2xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-normal);
}

.about-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.about-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-orange-light);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-orange);
    font-size: 2rem;
    margin: 0 auto 1.5rem;
}

.about-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.about-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== 服务项目 ===== */
.services-section {
    padding: 6rem 0;
    background: var(--white);
}

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

.service-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-2xl);
    border: 2px solid var(--gray-100);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-orange-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    border-color: var(--primary-orange);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.service-card.featured {
    border-color: var(--primary-orange);
    background: linear-gradient(135deg, var(--white) 0%, var(--bg-orange-light) 100%);
}

.service-card.featured::before {
    transform: scaleX(1);
}

.service-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--primary-orange-gradient);
    color: var(--text-white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 600;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-orange-gradient);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.service-features {
    list-style: none;
}

.service-features li {
    color: var(--text-secondary);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--gray-100);
    position: relative;
    padding-left: 1.5rem;
}

.service-features li:last-child {
    border-bottom: none;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-orange);
    font-weight: 600;
}

/* ===== 产品体系 ===== */
.products-section {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

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

.product-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.tab-btn {
    background: var(--white);
    border: 2px solid var(--gray-200);
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-xl);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--primary-orange-gradient);
    border-color: var(--primary-orange);
    color: var(--text-white);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

.product-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.product-grid .product-item {
    flex: 0 0 auto;
    width: 200px;
    max-width: calc(20% - 1.2rem);
}

.product-item {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-2xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-normal);
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-orange-light);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-orange);
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

.product-item h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.product-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ===== 成功案例 ===== */
.cases-section {
    padding: 6rem 0;
    background: var(--white);
}

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

.case-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-normal);
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.case-image {
    height: 200px;
    background: var(--primary-orange-gradient);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 2rem;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.case-card:hover .case-overlay {
    opacity: 1;
}

.case-content {
    padding: 1.5rem;
}

.case-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.case-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.case-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background: var(--bg-orange-light);
    color: var(--primary-orange);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 500;
}

/* ===== 联系我们 ===== */
.contact-section {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info .section-header {
    text-align: left;
    margin-bottom: 3rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-orange-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 1.25rem;
}

.contact-text h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.contact-text p {
    color: var(--text-secondary);
}

.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
}

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

.form-input {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
    background: var(--white);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-orange);
}

.form-input::placeholder {
    color: var(--text-light);
}

.btn-submit {
    width: 100%;
    background: var(--primary-orange-gradient);
    color: var(--text-white);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-orange);
}

/* ===== 页脚 ===== */
.footer {
    background: var(--gray-900);
    color: var(--text-white);
    padding: 3rem 0 1rem;
}

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

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

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-brand .brand-icon {
    background: var(--primary-orange-gradient);
}

.brand-desc {
    color: var(--gray-400);
    font-size: 0.875rem;
}

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

.link-group h4 {
    color: var(--text-white);
    font-weight: 600;
    margin-bottom: 1rem;
}

.link-group a {
    display: block;
    color: var(--gray-400);
    text-decoration: none;
    padding: 0.25rem 0;
    transition: color var(--transition-fast);
}

.link-group a:hover {
    color: var(--primary-orange);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-700);
}

.footer-bottom p {
    color: var(--gray-400);
    font-size: 0.875rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background: var(--primary-orange);
    color: var(--text-white);
}

/* ===== 返回顶部按钮 ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-orange-gradient);
    color: var(--text-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-orange);
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-visual {
        height: 400px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-info .section-header {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 2rem;
    }
    
    .services-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .product-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* ===== 关于我们页面样式 ===== */
.about-hero-section {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    overflow: hidden;
    padding-top: 70px;
}

.about-hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.about-hero-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.about-hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

/* 公司简介部分 */
.company-intro-section {
    padding: 6rem 0;
    background: var(--white);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.intro-content {
    padding-right: 2rem;
}

.intro-text {
    margin-top: 2rem;
}

.intro-text p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.intro-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.stat-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-2xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-card .stat-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-orange-light);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-orange);
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

.stat-card .stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--primary-orange-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-card .stat-label {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.stat-card .stat-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* 核心优势部分 */
.advantages-section {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.advantage-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-2xl);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-orange-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.advantage-card:hover::before {
    transform: scaleX(1);
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.advantage-icon {
    width: 70px;
    height: 70px;
    background: var(--bg-orange-light);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-orange);
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.advantage-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.advantage-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.advantage-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.advantage-features li {
    display: flex;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.advantage-features li::before {
    content: '✓';
    color: var(--primary-orange);
    font-weight: bold;
    margin-right: 0.5rem;
}

/* 服务领域部分 */
.service-areas-section {
    padding: 6rem 0;
    background: var(--white);
}

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

.area-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-2xl);
    border: 2px solid var(--gray-100);
    transition: all var(--transition-normal);
    text-align: center;
}

.area-card:hover {
    border-color: var(--primary-orange);
    transform: translateY(-5px);
    box-shadow: var(--shadow-orange);
}

.area-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-orange-light);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-orange);
    font-size: 2rem;
    margin: 0 auto 1.5rem;
}

.area-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.area-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.area-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.tag {
    background: var(--bg-orange-light);
    color: var(--primary-orange);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 500;
}

@media (max-width: 768px) {
    .about-hero-title {
        font-size: 2.5rem;
    }
    
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .intro-content {
        padding-right: 0;
    }
    
    .intro-stats {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .service-areas-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .section-container {
        padding: 0 1rem;
    }
    
    .nav-container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
    
    .floating-card {
        position: relative;
        margin-bottom: 1rem;
    }
    
    .card-1,
    .card-2,
    .card-3 {
        position: relative;
        top: auto;
        left: auto;
        right: auto;
        transform: none;
    }
    
    .about-hero-title {
        font-size: 2rem;
    }
    
    .stat-card {
        padding: 1.5rem;
    }
    
    .advantage-card {
        padding: 2rem;
    }
    
    .area-card {
        padding: 2rem;
    }
}

/* ===== 产品体系页面样式 ===== */
.products-hero-section {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    overflow: hidden;
    padding-top: 70px;
}

.products-hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.products-hero-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.products-hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

/* 产品体系总览 */
.products-overview-section {
    padding: 6rem 0;
    /* background: var(--bg-secondary); */
}

.products-architecture {
    position: relative;
    margin: 4rem 0;
    padding: 3rem;
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

.architecture-center {
    position: absolute;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
}

.center-circle {
    width: 200px;
    height: 200px;
    background: var(--primary-orange-gradient);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    text-align: center;
    box-shadow: var(--shadow-orange);
    border: 4px solid var(--white);
}

.center-circle i {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.center-circle h3 {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.2;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 3rem;
    padding: 3rem;
    min-height: 450px;
    position: relative;
}

/* 调整产品节点的具体位置 */
.product-node:nth-child(1) {
    grid-column: 1;
    grid-row: 1;
}

.product-node:nth-child(2) {
    grid-column: 3;
    grid-row: 1;
}

.product-node:nth-child(3) {
    grid-column: 1;
    grid-row: 2;
}

.product-node:nth-child(4) {
    grid-column: 3;
    grid-row: 2;
}

.product-node:nth-child(5) {
    grid-column: 2;
    grid-row: 2;
    margin-top: 2rem;
}

.product-node {
    background: var(--white);
    padding: 2rem 1.5rem;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    cursor: pointer;
    border: 2px solid var(--gray-100);
}

.product-node:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-orange);
    border-color: var(--primary-orange);
}

.node-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-orange-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--text-white);
    font-size: 1.5rem;
}

.product-node h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.product-node p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* 连线样式已移除 */

.overview-description {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.description-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: transform var(--transition-normal);
}

.description-card:hover {
    transform: translateY(-3px);
}

.card-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-orange-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.card-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.card-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 产品详细介绍 */
.product-detail-section {
    padding: 6rem 0;
}

.product-detail-section.alt-bg {
    background: var(--bg-secondary);
}

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

.product-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-orange-light);
    color: var(--primary-orange);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 107, 53, 0.2);
}

.product-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.product-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

.product-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.content-block {
    margin-bottom: 3rem;
}

.content-block h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.content-block h3 i {
    color: var(--primary-orange);
}

.content-block p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.function-grid {
    display: grid;
    gap: 1.5rem;
}

.function-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal);
    border: 1px solid var(--gray-100);
}

.product-detail-section.alt-bg .function-item {
    background: var(--white);
}

.function-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.function-item i {
    color: var(--primary-orange);
    font-size: 1.25rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.function-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.function-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* 生态系统图 */
.ecosystem-diagram {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    border: 1px solid var(--gray-100);
}

.product-detail-section.alt-bg .ecosystem-diagram {
    background: var(--white);
}

.ecosystem-diagram h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.ecosystem-content {
    position: relative;
    padding: 2rem;
    min-height: 200px;
}

.ecosystem-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.center-node {
    width: 100px;
    height: 100px;
    background: var(--primary-orange-gradient);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    text-align: center;
    box-shadow: var(--shadow-orange);
}

.center-node i {
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
}

.center-node span {
    font-size: 0.8rem;
    font-weight: 500;
}

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

.eco-node {
    background: var(--bg-orange-light);
    padding: 1rem;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid rgba(255, 107, 53, 0.2);
}

.eco-node i {
    color: var(--primary-orange);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    display: block;
}

.eco-node span {
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* 产品优势 */
.product-advantages {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

.product-detail-section.alt-bg .product-advantages {
    background: var(--white);
}

.product-advantages h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

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

.advantage-card {
    background: var(--bg-orange-light);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid rgba(255, 107, 53, 0.1);
    transition: transform var(--transition-normal);
}

.advantage-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary-orange);
}

.advantage-card i {
    color: var(--primary-orange);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    display: block;
}

.advantage-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.advantage-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* 核心优势列表 */
.core-advantages {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    border: 1px solid var(--gray-100);
}

.product-detail-section.alt-bg .core-advantages {
    background: var(--white);
}

.advantage-list {
    display: grid;
    gap: 1rem;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-orange-light);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--primary-orange);
}

.advantage-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-orange);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 1rem;
    flex-shrink: 0;
}

.advantage-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.advantage-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

/* 问题解决 */
.problem-solving {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

.product-detail-section.alt-bg .problem-solving {
    background: var(--white);
}

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

.problem-card {
    background: var(--primary-orange-gradient);
    color: var(--text-white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform var(--transition-normal);
}

.problem-card:hover {
    transform: translateY(-2px);
}

.problem-card i {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    display: block;
}

.problem-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
}

/* 供应链金融流程 */
.finance-process {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    border: 1px solid var(--gray-100);
}

.process-steps {
    display: grid;
    gap: 1.5rem;
}

.process-step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    position: relative;
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    bottom: -0.75rem;
    left: 1.5rem;
    width: 2px;
    height: 1.5rem;
    background: var(--primary-orange);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-orange);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.step-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

/* 适用场景 */
.scenario-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.scenario-item {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal);
    border: 1px solid var(--gray-100);
}

.product-detail-section.alt-bg .scenario-item {
    background: var(--white);
}

.scenario-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.scenario-item i {
    color: var(--primary-orange);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    display: block;
}

.scenario-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.scenario-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* 支付功能特色 */
.payment-features {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    border: 1px solid var(--gray-100);
}

.product-detail-section.alt-bg .payment-features {
    background: var(--white);
}

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

.feature-card {
    background: var(--bg-orange-light);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid rgba(255, 107, 53, 0.1);
    transition: transform var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary-orange);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-orange);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 1.25rem;
    margin: 0 auto 1rem;
}

.feature-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.feature-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* 银行合作 */
.bank-cooperation {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

.product-detail-section.alt-bg .bank-cooperation {
    background: var(--white);
}

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

.bank-item {
    background: var(--primary-orange-gradient);
    color: var(--text-white);
    padding: 1rem;
    border-radius: var(--radius-md);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 500;
}

.bank-item i {
    font-size: 1.25rem;
}

/* 供应链服务支持 */
.supply-chain-support {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    border: 1px solid var(--gray-100);
}

.support-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.brand-partners h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

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

.brand-item {
    background: var(--bg-orange-light);
    padding: 1rem;
    border-radius: var(--radius-md);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: 1px solid rgba(255, 107, 53, 0.2);
}

.brand-item i {
    color: var(--primary-orange);
    font-size: 1.25rem;
}

.brand-item span {
    font-weight: 500;
    color: var(--text-primary);
}

/* 用户群体 */
.user-groups {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

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

.user-card {
    background: var(--bg-orange-light);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid rgba(255, 107, 53, 0.1);
    transition: transform var(--transition-normal);
}

.user-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary-orange);
}

.user-card i {
    color: var(--primary-orange);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    display: block;
}

.user-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.user-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* 产品体系页面响应式设计 */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .center-circle {
        width: 150px;
        height: 150px;
    }
    
    .overview-description {
        grid-template-columns: 1fr;
    }
    
    .product-content-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .products-hero-title {
        font-size: 2.5rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .center-circle {
        width: 120px;
        height: 120px;
    }
    
    .center-circle h3 {
        font-size: 0.875rem;
    }
    
    .advantage-cards {
        grid-template-columns: 1fr;
    }
    
    .problem-cards {
        grid-template-columns: 1fr;
    }
    
    .feature-cards {
        grid-template-columns: 1fr;
    }
    
    .bank-grid {
        grid-template-columns: 1fr;
    }
    
    .brand-grid {
        grid-template-columns: 1fr;
    }
    
    .user-cards {
        grid-template-columns: 1fr;
    }
    
    .ecosystem-nodes {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .products-hero-title {
        font-size: 2rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
        gap: 1.5rem;
        padding: 2rem 1rem;
    }
    
    .product-node:nth-child(1),
    .product-node:nth-child(2),
    .product-node:nth-child(3),
    .product-node:nth-child(4),
    .product-node:nth-child(5) {
        grid-column: 1;
        grid-row: auto;
        margin-top: 0;
    }
    
    .center-circle {
        width: 100px;
        height: 100px;
    }
    
    .center-circle i {
        font-size: 2rem;
    }
    
    .center-circle h3 {
        font-size: 0.75rem;
    }
    
    .product-title {
        font-size: 2rem;
    }
    
    .scenario-grid {
        grid-template-columns: 1fr;
    }
    
    .ecosystem-nodes {
        grid-template-columns: 1fr;
    }
    
    .connection-line {
        display: none;
    }
}

/* ===== 服务项目页面样式 ===== */
.services-hero-section {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    overflow: hidden;
    padding-top: 70px;
}

.services-hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.services-hero-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.services-hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

/* 服务项目总览 */
.services-overview-section {
    padding: 6rem 0;
    background: var(--white);
}

.services-overview-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.overview-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-2xl);
    border: 2px solid var(--gray-100);
    transition: all var(--transition-normal);
    text-align: center;
    position: relative;
    cursor: pointer;
}

.overview-card:hover {
    border-color: var(--primary-orange);
    transform: translateY(-5px);
    box-shadow: var(--shadow-orange);
}

.overview-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-orange-light);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-orange);
    font-size: 2rem;
    margin: 0 auto 1.5rem;
    transition: all var(--transition-normal);
}

.overview-card:hover .overview-icon {
    background: var(--primary-orange);
    color: var(--white);
}

.overview-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.overview-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.overview-arrow {
    position: absolute;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 40px;
    height: 40px;
    background: var(--bg-orange-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-orange);
    transition: all var(--transition-normal);
}

.overview-card:hover .overview-arrow {
    background: var(--primary-orange);
    color: var(--white);
    transform: translateX(5px);
}

/* 服务详细介绍 */
.service-detail-section {
    padding: 6rem 0;
    background: var(--white);
}

.service-detail-section.alt-bg {
    background: var(--bg-secondary);
}

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

.service-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-orange-light);
    color: var(--primary-orange);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 107, 53, 0.2);
}

.service-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.service-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.service-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.service-content {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.content-block h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.content-block h3 i {
    color: var(--primary-orange);
}

.content-block p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: var(--bg-orange-light);
    color: var(--primary-orange);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 500;
}

.advantage-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.advantage-list li {
    display: flex;
    align-items: flex-start;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.advantage-list li::before {
    content: '✓';
    color: var(--primary-orange);
    font-weight: bold;
    margin-right: 0.75rem;
    margin-top: 0.1rem;
    flex-shrink: 0;
}

/* 服务流程 */
.service-process {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

.service-process h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.service-process h3 i {
    color: var(--primary-orange);
}

.process-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.process-step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-orange-gradient);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.step-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 服务特性 */
.service-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
}

.feature-item i {
    color: var(--primary-orange);
    font-size: 1.25rem;
}

.feature-item span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* 服务案例 */
.service-cases {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

.service-cases h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.service-cases h3 i {
    color: var(--primary-orange);
}

.case-cards {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.case-card {
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-100);
}

.case-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-orange-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-orange);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.case-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.case-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.case-card .highlight {
    color: var(--primary-orange);
    font-weight: 600;
}

.case-metrics {
    display: flex;
    gap: 2rem;
}

.metric {
    text-align: center;
}

.metric-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-orange);
    line-height: 1;
}

.metric-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* 支付特性 */
.payment-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
}

.payment-feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
}

.payment-feature i {
    color: var(--primary-orange);
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.feature-text h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.feature-text p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* 合作银行 */
.bank-partners {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

.bank-partners h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.bank-partners h3 i {
    color: var(--primary-orange);
}

.bank-logos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.bank-logo {
    text-align: center;
}

.logo-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 2px solid var(--gray-100);
    transition: all var(--transition-normal);
}

.logo-placeholder:hover {
    border-color: var(--primary-orange);
    background: var(--bg-orange-light);
}

.logo-placeholder i {
    font-size: 2rem;
    color: var(--primary-orange);
}

.logo-placeholder span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.bank-note {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.6;
}

/* 咨询服务 */
.consulting-services {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
}

.consulting-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
}

.consulting-item i {
    color: var(--primary-orange);
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.item-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.item-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* 服务价值 */
.service-value {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

.service-value h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.service-value h3 i {
    color: var(--primary-orange);
}

.value-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.value-card {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-normal);
}

.value-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.value-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-orange-light);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-orange);
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

.value-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.value-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

@media (max-width: 768px) {
    .services-hero-title {
        font-size: 2.5rem;
    }
    
    .services-overview-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .service-content-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .service-features {
        grid-template-columns: 1fr;
    }
    
    .case-metrics {
        justify-content: center;
    }
    
    .bank-logos {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .value-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .services-hero-title {
        font-size: 2rem;
    }
    
    .service-title {
        font-size: 2rem;
    }
    
    .services-overview-grid {
        grid-template-columns: 1fr;
    }
    
    .overview-card {
        padding: 2rem;
    }
    
    .service-process {
        padding: 2rem;
    }
    
    .service-cases {
        padding: 2rem;
    }
    
    .bank-partners {
        padding: 2rem;
    }
    
    .service-value {
        padding: 2rem;
    }
    
    .bank-logos {
        grid-template-columns: 1fr;
    }
}

/* ===== 联系我们页面样式 ===== */

/* 联系我们页面主体 */
.contact-hero-section {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    overflow: hidden;
    padding-top: 70px;
}

.contact-hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.contact-hero-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.contact-hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

/* 企业联系方式区域 */
.contact-info-section {
    padding: 5rem 0;
    background: #f8f9fa;
}

.contact-info-row {
    display: flex;
    gap: 2rem;
    margin-top: 3rem;
    justify-content: space-between;
}

.contact-info-row .contact-card {
    flex: 1;
    min-width: 0;
}

@media (max-width: 768px) {
    .contact-info-row {
        flex-direction: column;
        gap: 1.5rem;
    }
}

.contact-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 1.5rem;
}

.contact-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.contact-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.contact-note {
    font-size: 0.9rem;
    color: #999 !important;
    font-style: italic;
}

.map-btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    margin-top: 1rem;
    transition: background 0.3s ease;
}

.map-btn:hover {
    background: #5a6fd8;
}

/* 地图容器 */
.map-container {
    margin-top: 3rem;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.map-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.map-header h3 {
    margin: 0;
    color: #2c3e50;
}

.close-map {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: #666;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.close-map:hover {
    background: #e9ecef;
}

.map-embed {
    position: relative;
    width: 100%;
    height: 400px;
}

/* 在线咨询区域 */
.online-consultation-section {
    padding: 5rem 0;
    background: white;
}

.consultation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.consultation-card {
    background: #f8f9fa;
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.consultation-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.1);
}

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

.consultation-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.consultation-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

/* FAQ 容器 */
.faq-container {
    margin-top: 3rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.faq-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.faq-header h3 {
    margin: 0;
    color: #2c3e50;
}

.close-faq {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: #666;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.close-faq:hover {
    background: #e9ecef;
}

.faq-list {
    padding: 1rem 0;
}

.faq-item {
    border-bottom: 1px solid #e9ecef;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    cursor: pointer;
    transition: background 0.3s ease;
    font-weight: 500;
    color: #2c3e50;
}

.faq-question:hover {
    background: #f8f9fa;
}

.faq-question i {
    transition: transform 0.3s ease;
    color: #667eea;
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 2rem 1.5rem;
    color: #666;
    line-height: 1.6;
    display: none;
}

.faq-answer.show {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 合作需求表单区域 */
.cooperation-form-section {
    padding: 5rem 0;
    background: #f8f9fa;
}

.form-container {
    max-width: 800px;
    margin: 3rem auto 0;
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.cooperation-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: #666;
    font-size: 0.9rem;
}

/* 验证码样式 */
.captcha-group .captcha-container {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.captcha-container input {
    flex: 1;
}

.captcha-image {
    width: 100px;
    height: 40px;
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-weight: bold;
    color: #667eea;
    transition: background 0.3s ease;
}

.captcha-image:hover {
    background: #e9ecef;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

/* 社交媒体区域 */
.social-media-section {
    padding: 5rem 0;
    background: white;
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.social-card {
    background: #f8f9fa;
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.social-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.1);
}

.social-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 1.5rem;
}

.social-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.qr-code {
    margin-top: 1rem;
}

.qr-placeholder {
    width: 120px;
    height: 120px;
    background: #e9ecef;
    border: 2px dashed #ccc;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    color: #666;
}

.qr-placeholder i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.qr-placeholder p {
    margin: 0;
    font-size: 0.9rem;
}

.social-link {
    margin-top: 1rem;
}

.app-download {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.app-download .social-icon {
    background: rgba(255, 255, 255, 0.2);
}

.app-download h3 {
    color: white;
}

.app-download .qr-placeholder {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

/* 留言反馈区域 */
.feedback-section {
    padding: 5rem 0;
    background: #f8f9fa;
}

.feedback-container {
    max-width: 700px;
    margin: 3rem auto 0;
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.feedback-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .contact-hero-title {
        font-size: 2.5rem;
    }
    
    .contact-info-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .consultation-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .social-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .cooperation-form .form-row,
    .feedback-form .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .form-container,
    .feedback-container {
        padding: 2rem;
        margin-top: 2rem;
    }
    
    .captcha-group .captcha-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .captcha-image {
        width: 100%;
        height: 50px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .map-header,
    .faq-header {
        padding: 1rem 1.5rem;
    }
    
    .faq-question {
        padding: 1rem 1.5rem;
    }
    
    .faq-answer {
        padding: 0 1.5rem 1rem;
    }
}

@media (max-width: 480px) {
    .contact-hero-title {
        font-size: 2rem;
    }
    
    .contact-card,
    .consultation-card,
    .social-card {
        padding: 1.5rem;
    }
    
    .form-container,
    .feedback-container {
        padding: 1.5rem;
    }
}

/* ===== 成功案例页面样式 ===== */

/* 案例页面横幅 */
.cases-hero-section {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    overflow: hidden;
    padding-top: 70px;
}

.cases-hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.cases-hero-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.cases-hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

/* 案例筛选区域 */
.cases-filter-section {
    padding: 4rem 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--gray-200);
}

.filter-tabs {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.filter-group {
    text-align: center;
}

.filter-group h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--gray-300);
    background: var(--white);
    color: var(--text-secondary);
    border-radius: var(--radius-xl);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
    white-space: nowrap;
}

.filter-btn:hover {
    border-color: var(--primary-orange);
    color: var(--primary-orange);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--primary-orange);
    border-color: var(--primary-orange);
    color: var(--white);
    box-shadow: var(--shadow-orange);
}

/* 案例展示区域 */
.cases-showcase-section {
    padding: 5rem 0;
    background: var(--bg-primary);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.case-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    border: 1px solid var(--gray-200);
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.case-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--bg-orange-light) 0%, rgba(255, 107, 53, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.case-image i {
    font-size: 3rem;
    color: var(--primary-orange);
    opacity: 0.8;
}

.case-content {
    padding: 2rem;
}

.case-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.case-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.case-tag {
    background: var(--bg-orange-light);
    color: var(--primary-orange);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 500;
}

.no-cases {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
    background: var(--white);
    border-radius: var(--radius-xl);
    border: 2px dashed var(--gray-300);
}

.no-cases-content {
    text-align: center;
    color: var(--text-secondary);
}

.no-cases-content i {
    font-size: 4rem;
    color: var(--gray-400);
    margin-bottom: 1rem;
}

.no-cases-content h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.no-cases-content p {
    font-size: 1rem;
    color: var(--text-secondary);
}

.case-section {
    margin-bottom: 1.5rem;
}

.case-section:last-child {
    margin-bottom: 0;
}

.case-section h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.case-section h4 i {
    color: var(--primary-orange);
    font-size: 0.75rem;
}

.case-section p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.case-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
    padding: 1rem;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
}

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

.metric-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-orange);
    display: block;
}

.metric-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.case-quote {
    background: var(--bg-primary);
    border-left: 4px solid var(--primary-orange);
    padding: 1rem;
    margin-top: 1rem;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    font-style: italic;
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* 案例咨询区域 */
.cases-consultation-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--white) 100%);
}

.consultation-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.consultation-content h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.consultation-content p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.6;
}

.consultation-form {
    text-align: left;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    width: 100%;
    margin-top: 1rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .cases-hero-title {
        font-size: 2.5rem;
    }
    
    .filter-tabs {
        gap: 1.5rem;
    }
    
    .filter-buttons {
        justify-content: center;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .case-content {
        padding: 1.5rem;
    }
    
    .case-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .case-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .consultation-content h2 {
        font-size: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .cases-hero-section {
        padding: 6rem 0 4rem;
    }
    
    .cases-hero-title {
        font-size: 2rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .case-content {
        padding: 1rem;
    }
    
    .case-metrics {
        grid-template-columns: 1fr;
    }
}

/* ===== 联系我们页面新增样式 ===== */

/* 在线咨询样式 */
.consultation-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.consultation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.consultation-card {
    background: var(--bg-primary);
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--gray-200);
}

.consultation-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.consultation-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-orange-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.consultation-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.consultation-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
}

/* 合作需求表单样式 */
.cooperation-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.form-container {
    max-width: 800px;
    margin: 3rem auto 0;
}

.cooperation-form {
    background: var(--bg-secondary);
    padding: 3rem;
    border-radius: 16px;
    border: 1px solid var(--gray-200);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-orange);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-input[type="file"] {
    padding: 0.5rem;
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.captcha-group {
    margin-bottom: 2rem;
}

.captcha-container {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.captcha-container .form-input {
    flex: 1;
}

.captcha-image {
    width: 120px;
    height: 40px;
    background: linear-gradient(135deg, #f0f0f0, #e0e0e0);
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.captcha-image:hover {
    background: linear-gradient(135deg, #e0e0e0, #d0d0d0);
}

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

/* 社交媒体样式 */
.social-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.social-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--gray-200);
}

.social-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.social-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-orange-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 1.5rem;
}

.social-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.qr-code {
    margin-top: 1rem;
}

.qr-placeholder {
    width: 120px;
    height: 120px;
    background: var(--bg-secondary);
    border: 2px dashed var(--gray-300);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    color: var(--text-light);
}

.qr-placeholder i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.qr-placeholder p {
    font-size: 0.875rem;
    margin: 0;
}

.social-link {
    margin-top: 1rem;
}

/* 留言反馈样式 */
.feedback-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.feedback-container {
    max-width: 600px;
    margin: 3rem auto 0;
}

.feedback-form {
    background: var(--bg-secondary);
    padding: 3rem;
    border-radius: 16px;
    border: 1px solid var(--gray-200);
}

/* 弹窗样式 */
.map-overlay,
.faq-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.map-container,
.faq-container {
    background: var(--bg-primary);
    border-radius: 16px;
    max-width: 90%;
    max-height: 90%;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.map-header,
.faq-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
}

.map-header h3,
.faq-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: var(--bg-primary);
    color: var(--text-primary);
}

.map-content {
    padding: 0;
}

.faq-content {
    padding: 2rem;
    max-height: 400px;
    overflow-y: auto;
}

.faq-item {
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 1rem;
}

.faq-question {
    padding: 1rem 0;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.faq-question:hover {
    color: var(--primary-orange);
}

.faq-question i {
    transition: transform 0.3s ease;
}

.faq-answer {
    padding: 0 0 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    display: none;
}

.faq-answer.active {
    display: block;
}

.faq-question.active i {
    transform: rotate(180deg);
}

/* 更新现有联系卡片样式 */
.contact-card {
    background: #fff;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--gray-200);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.contact-card .contact-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-orange-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 1.5rem;
}

.contact-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.contact-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.contact-note {
    font-size: 0.9rem;
    color: var(--text-light);
}

.map-btn {
    background: var(--primary-orange);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 1rem;
    transition: all 0.3s ease;
}

.map-btn:hover {
    background: var(--primary-orange-dark);
    transform: translateY(-2px);
}

/* ===== 下载中心弹窗样式 ===== */

/* 弹窗遮罩层 */
.download-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.download-modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* 弹窗主体 */
.download-modal {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 24px;
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.15),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    max-width: 520px;
    width: 90%;
    max-height: 85vh;
    overflow: hidden;
    position: relative;
    transform: scale(0.9) translateY(30px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.download-modal-overlay.show .download-modal {
    transform: scale(1) translateY(0);
}

/* 弹窗头部 */
.download-modal-header {
    padding: 32px 32px 24px;
    background: linear-gradient(135deg, var(--primary-orange) 0%, #ff8c42 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.download-modal-header::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="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.download-modal-close {
    position: absolute;
    top: 24px;
    right: 24px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: none;
    font-size: 20px;
    color: white;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 2;
}

.download-modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.download-modal-title {
    font-size: 28px;
    font-weight: 700;
    color: white;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    position: relative;
    z-index: 1;
}

.download-modal-title i {
    font-size: 32px;
    background: rgba(255, 255, 255, 0.2);
    padding: 12px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

/* 弹窗内容 */
.download-modal-content {
    padding: 32px;
    overflow-y: auto;
    max-height: calc(85vh - 120px);
}

.download-options {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.download-option {
    background: white;
    border: 2px solid rgba(255, 107, 53, 0.1);
    border-radius: 16px;
    padding: 24px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.download-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 107, 53, 0.1), transparent);
    transition: left 0.5s ease;
}

.download-option:hover::before {
    left: 100%;
}

.download-option:hover {
    border-color: var(--primary-orange);
    background: rgba(255, 107, 53, 0.05);
    transform: translateY(-4px);
    box-shadow: 
        0 15px 35px rgba(255, 107, 53, 0.2),
        0 5px 15px rgba(0, 0, 0, 0.1);
}

.download-option-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-orange), #ff8c42);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 28px;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(255, 107, 53, 0.3);
    position: relative;
    z-index: 1;
}

.download-option:hover .download-option-icon {
    transform: scale(1.1) rotate(5deg);
}

.download-option-title {
    font-size: 20px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.download-option-desc {
    font-size: 15px;
    color: #6c757d;
    line-height: 1.5;
    position: relative;
    z-index: 1;
}

/* 二维码显示区域 */
.qr-code-section {
    display: none;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.qr-code-section h3 {
    margin: 0 0 24px 0;
    font-size: 24px;
    font-weight: 700;
    color: #2c3e50;
}

.qr-code-container {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 20px;
    padding: 32px;
    margin-bottom: 24px;
    display: inline-block;
    box-shadow: 
        inset 0 2px 4px rgba(0, 0, 0, 0.1),
        0 8px 20px rgba(0, 0, 0, 0.1);
}

.qr-code-placeholder {
    width: 220px;
    height: 220px;
    background: white;
    border: 3px dashed #dee2e6;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: #6c757d;
    margin: 0 auto 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.qr-code-placeholder:hover {
    border-color: var(--primary-orange);
    color: var(--primary-orange);
}

.qr-code-tips {
    font-size: 15px;
    color: #6c757d;
    line-height: 1.6;
    background: rgba(255, 107, 53, 0.05);
    padding: 16px;
    border-radius: 12px;
    border-left: 4px solid var(--primary-orange);
}

.back-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 20px auto;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    position: relative;
    overflow: hidden;
    min-width: 160px;
    letter-spacing: 0.5px;
}

.back-btn::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 0.6s;
}

.back-btn:hover::before {
    left: 100%;
}

.back-btn:hover {
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 35px rgba(102, 126, 234, 0.4);
}

.back-btn:active {
    transform: translateY(-1px) scale(0.98);
    transition: all 0.1s;
}

.back-btn i {
    font-size: 18px;
    transition: transform 0.3s ease;
}

.back-btn:hover i {
    transform: translateX(-3px);
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .download-modal {
        margin: 20px;
        max-width: none;
        width: calc(100% - 40px);
        border-radius: 16px;
    }
    
    .download-modal-header {
        padding: 24px 24px 20px;
    }
    
    .download-modal-content {
        padding: 24px;
    }
    
    .download-modal-title {
        font-size: 24px;
    }
    
    .download-modal-title i {
        font-size: 28px;
        padding: 10px;
    }
    
    .download-option {
        padding: 20px;
    }
    
    .download-option-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 16px;
    }
    
    .download-option-icon i {
        font-size: 24px;
    }
    
    .download-option-title {
        font-size: 18px;
    }
    
    .download-option-desc {
        font-size: 14px;
    }
    
    .qr-code-placeholder {
        width: 180px;
        height: 180px;
    }
    
    .qr-code-container {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .download-modal {
        margin: 16px;
        width: calc(100% - 32px);
    }
    
    .download-modal-header {
        padding: 20px 20px 16px;
    }
    
    .download-modal-content {
        padding: 20px;
    }
    
    .download-modal-title {
        font-size: 20px;
    }
    
    .download-option {
        padding: 16px;
    }
    
    .download-option-title {
        font-size: 16px;
    }
    
    .qr-code-placeholder {
        width: 160px;
        height: 160px;
    }
}

/* ===== 弹窗内下载使用悬停二维码样式 ===== */
.download-option-wrapper {
    position: relative;
}

.download-option-tooltip {
    position: absolute;
    top: 50%;
    left: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 16px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    padding: 20px;
    margin-left: 16px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-50%) translateX(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1001;
    min-width: 200px;
    text-align: center;
    pointer-events: none;
}

.download-option-tooltip::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -8px;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-right: 8px solid rgba(255, 255, 255, 0.98);
}

.download-option-wrapper:hover .download-option-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
    pointer-events: auto;
}

.download-option-tooltip .tooltip-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.download-option-tooltip .tooltip-title {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin: 0;
    line-height: 1.2;
}

.download-option-tooltip .qr-code-hover {
    display: flex;
    justify-content: center;
    align-items: center;
    background: #fff;
    border-radius: 12px;
    padding: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.download-option-tooltip .qr-code-hover svg {
    width: 140px;
    height: 140px;
    border-radius: 8px;
}

.download-option-tooltip .tooltip-desc {
    font-size: 14px;
    color: #666;
    margin: 0;
    line-height: 1.4;
    font-weight: 500;
}

/* 响应式设计 - 弹窗内悬停 */
@media (max-width: 768px) {
    .download-option-tooltip {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        margin-left: 0;
        min-width: 280px;
        max-width: 90vw;
    }
    
    .download-option-tooltip::before {
        display: none;
    }
    
    .download-option-tooltip .tooltip-title {
        font-size: 16px;
    }
    
    .download-option-tooltip .qr-code-hover svg {
        width: 120px;
        height: 120px;
    }
    
    .download-option-tooltip .tooltip-desc {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .download-option-tooltip {
        min-width: 260px;
        padding: 16px;
    }
    
    .download-option-tooltip .qr-code-hover {
        padding: 8px;
    }
    
    .download-option-tooltip .qr-code-hover svg {
        width: 100px;
        height: 100px;
    }
    
    .download-option-tooltip .tooltip-desc {
        font-size: 12px;
    }
}