/* ==================== 基础重置与变量 ==================== */
:root {
    /* 主色调 - 科技蓝 */
    --primary: #0066FF;
    --primary-dark: #0052CC;
    --primary-light: #3385FF;
    --primary-gradient: linear-gradient(135deg, #0066FF 0%, #00D4FF 100%);
    
    /* 辅助色 */
    --secondary: #00D4FF;
    --accent: #7B61FF;
    --success: #00C853;
    --warning: #FFB800;
    
    /* 中性色 */
    --dark: #0A1628;
    --dark-light: #1A2B4A;
    --gray-900: #1F2937;
    --gray-700: #374151;
    --gray-500: #6B7280;
    --gray-300: #D1D5DB;
    --gray-100: #F3F4F6;
    --white: #FFFFFF;
    
    /* 字体 */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* 间距 */
    --section-padding: 120px;
    --container-max: 1280px;
    
    /* 动画 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 102, 255, 0.15);
    --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--gray-900);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--white);
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition-normal);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    padding: 12px 0;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.footer-brand .logo-img {
    height: 48px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-link {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(0, 102, 255, 0.08);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.bar {
    width: 24px;
    height: 2px;
    background: var(--gray-900);
    transition: var(--transition-fast);
}

/* ==================== 首页横幅 ==================== */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--dark);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(0, 102, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0, 212, 255, 0.1) 0%, transparent 40%),
        radial-gradient(ellipse at 60% 80%, rgba(123, 97, 255, 0.1) 0%, transparent 40%);
}

.gradient-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, 
        rgba(10, 22, 40, 0.8) 0%, 
        rgba(10, 22, 40, 0.6) 50%,
        rgba(10, 22, 40, 0.9) 100%
    );
}

.particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--secondary);
    border-radius: 50%;
    opacity: 0.6;
    animation: float 15s infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) translateX(0); opacity: 0.6; }
    50% { transform: translateY(-100px) translateX(50px); opacity: 0.3; }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    padding: 0 24px;
    color: var(--white);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    margin-bottom: 32px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-badge i {
    color: var(--warning);
}

.hero-title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
}

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

.hero-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 48px;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 48px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-unit {
    font-size: 24px;
    font-weight: 600;
    color: var(--secondary);
}

.stat-label {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 4px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: var(--transition-normal);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 102, 255, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
}

.mouse {
    width: 24px;
    height: 36px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 4px;
    background: var(--secondary);
    border-radius: 50%;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

/* ==================== 通用区块样式 ==================== */
section {
    padding: var(--section-padding) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px;
}

.section-header.light {
    color: var(--white);
}

.section-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--primary);
    margin-bottom: 16px;
    padding: 6px 16px;
    background: rgba(0, 102, 255, 0.08);
    border-radius: 50px;
}

.section-header.light .section-tag {
    background: rgba(255, 255, 255, 0.1);
    color: var(--secondary);
}

.section-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
}

.section-header.light .section-title {
    color: var(--white);
}

.section-desc {
    font-size: 18px;
    color: var(--gray-500);
}

.section-header.light .section-desc {
    color: rgba(255, 255, 255, 0.7);
}

/* ==================== 关于我们 ==================== */
.about {
    background: var(--gray-100);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.about-card {
    background: var(--white);
    padding: 40px 32px;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition-normal);
    border: 1px solid var(--gray-100);
}

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

.about-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: var(--white);
    font-size: 28px;
}

.about-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--dark);
}

.about-card p {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.7;
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.info-card {
    background: var(--white);
    padding: 24px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition-normal);
    border: 1px solid var(--gray-100);
}

.info-card:hover {
    box-shadow: var(--shadow-md);
}

.info-icon {
    width: 48px;
    height: 48px;
    background: rgba(0, 102, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 20px;
}

.info-value {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
}

.info-label {
    font-size: 13px;
    color: var(--gray-500);
}

/* ==================== 资质认证 ==================== */
.certifications {
    background: var(--dark);
    position: relative;
    overflow: hidden;
}

.certifications::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 30% 50%, rgba(0, 102, 255, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 30%, rgba(0, 212, 255, 0.08) 0%, transparent 40%);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    position: relative;
    z-index: 1;
}

.cert-item {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition-normal);
}

.cert-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

.cert-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 20px;
}

.cert-item span {
    color: var(--white);
    font-weight: 500;
}

/* ==================== 资源布局 ==================== */
.resources {
    background: var(--white);
}

.resource-showcase {
    background: var(--gray-100);
    border-radius: 24px;
    padding: 48px;
}

.resource-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.resource-visual {
    position: relative;
    height: 400px;
    background: var(--dark);
    border-radius: 16px;
    overflow: hidden;
}

.map-container {
    position: relative;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 40%, rgba(0, 102, 255, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 70% 60%, rgba(0, 212, 255, 0.15) 0%, transparent 40%),
        linear-gradient(135deg, #0A1628 0%, #1A2B4A 100%);
}

.map-point {
    position: absolute;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
}

.map-point.active {
    background: var(--secondary);
}

.pulse {
    position: absolute;
    inset: -8px;
    border: 2px solid var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.map-point.active .pulse {
    border-color: var(--secondary);
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(2); opacity: 0; }
}

.point-label {
    position: absolute;
    top: -32px;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    background: rgba(0, 0, 0, 0.8);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    opacity: 0;
    transition: var(--transition-fast);
}

.map-point:hover .point-label {
    opacity: 1;
}

.resource-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.detail-card {
    background: var(--white);
    padding: 24px;
    border-radius: 12px;
    border-left: 4px solid var(--primary);
}

.detail-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-card h4 i {
    color: var(--primary);
}

.detail-card p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.7;
}

.detail-card strong {
    color: var(--primary);
}

/* ==================== 业务体系 ==================== */
.business {
    background: var(--gray-100);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.business-card {
    background: var(--white);
    padding: 32px;
    border-radius: 16px;
    position: relative;
    transition: var(--transition-normal);
    border: 1px solid var(--gray-100);
}

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

.business-card.highlight {
    background: var(--dark);
    color: var(--white);
    border-color: var(--dark);
}

.business-number {
    position: absolute;
    top: 24px;
    right: 24px;
    font-size: 48px;
    font-weight: 700;
    color: var(--gray-100);
    line-height: 1;
}

.business-card.highlight .business-number {
    color: rgba(255, 255, 255, 0.1);
}

.highlight-badge {
    display: inline-block;
    background: var(--primary-gradient);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
}

.business-icon {
    width: 56px;
    height: 56px;
    background: rgba(0, 102, 255, 0.1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 24px;
    margin-bottom: 20px;
}

.business-card.highlight .business-icon {
    background: rgba(255, 255, 255, 0.1);
    color: var(--secondary);
}

.business-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--dark);
}

.business-card.highlight h3 {
    color: var(--white);
}

.business-card > p {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 20px;
    line-height: 1.7;
}

.business-card.highlight > p {
    color: rgba(255, 255, 255, 0.7);
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.feature-list li i {
    color: var(--success);
    font-size: 12px;
}

.business-card.highlight .feature-list li {
    color: rgba(255, 255, 255, 0.8);
}

.business-summary {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.summary-content {
    background: var(--white);
    padding: 32px;
    border-radius: 16px;
    border-left: 4px solid var(--accent);
}

.summary-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 12px;
}

.summary-content p {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ==================== 技术优势 ==================== */
.technology {
    background: var(--white);
}

.platform-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 32px;
    text-align: center;
}

.tech-platforms {
    margin-bottom: 80px;
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.platform-card {
    background: var(--gray-100);
    padding: 32px;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition-normal);
}

.platform-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.platform-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--white);
    font-size: 28px;
}

.platform-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 12px;
}

.platform-card p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.7;
}

.tech-cores {
    margin-bottom: 80px;
}

.core-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.core-item {
    display: flex;
    gap: 24px;
    background: var(--gray-100);
    padding: 32px;
    border-radius: 16px;
    transition: var(--transition-normal);
}

.core-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.core-visual {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.core-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 28px;
}

.core-progress {
    width: 4px;
    height: 60px;
    background: var(--gray-300);
    border-radius: 2px;
    position: relative;
    overflow: hidden;
}

.core-progress::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--progress, 50%);
    background: var(--primary-gradient);
    border-radius: 2px;
}

.core-info h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.core-info p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.7;
}

.tech-integration {
    background: var(--gray-100);
    border-radius: 24px;
    padding: 48px;
}

.integration-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.integration-item {
    display: flex;
    gap: 20px;
}

.integration-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-gradient);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 24px;
    flex-shrink: 0;
}

.integration-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.integration-item p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ==================== 服务保障 ==================== */
.service {
    background: var(--gray-100);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-category {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition-normal);
}

.service-category:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-category.highlight {
    background: var(--dark);
    color: var(--white);
}

.service-header {
    padding: 32px;
    background: var(--primary-gradient);
    color: var(--white);
}

.service-category.highlight .service-header {
    background: linear-gradient(135deg, #7B61FF 0%, #0066FF 100%);
}

.service-icon {
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 16px;
}

.service-header h3 {
    font-size: 20px;
    font-weight: 600;
}

.service-content {
    padding: 32px;
}

.service-item {
    margin-bottom: 24px;
}

.service-item:last-child {
    margin-bottom: 0;
}

.service-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.service-category.highlight .service-item h4 {
    color: var(--white);
}

.service-item p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.7;
}

.service-category.highlight .service-item p {
    color: rgba(255, 255, 255, 0.7);
}

/* ==================== 核心价值 ==================== */
.values {
    background: var(--dark);
    position: relative;
    overflow: hidden;
}

.values::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 30%, rgba(0, 102, 255, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(123, 97, 255, 0.1) 0%, transparent 50%);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    position: relative;
    z-index: 1;
}

.value-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 32px 24px;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition-normal);
}

.value-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-8px);
}

.value-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-gradient);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--white);
    font-size: 24px;
}

.value-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 8px;
}

.value-card > p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 12px;
}

.value-detail {
    font-size: 12px;
    color: var(--secondary);
    font-weight: 500;
}

/* ==================== 愿景规划 ==================== */
.vision {
    background: var(--white);
}

.vision-content {
    display: flex;
    flex-direction: column;
    gap: 64px;
}

.vision-main {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.vision-item {
    background: var(--gray-100);
    padding: 40px;
    border-radius: 16px;
    transition: var(--transition-normal);
}

.vision-item:hover {
    box-shadow: var(--shadow-md);
}

.vision-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 28px;
    margin-bottom: 24px;
}

.vision-item h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 12px;
}

.vision-item p {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.8;
}

.roadmap {
    background: var(--gray-100);
    border-radius: 24px;
    padding: 48px;
}

.roadmap-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 32px;
    text-align: center;
}

.roadmap-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.roadmap-item {
    background: var(--white);
    padding: 24px;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition-normal);
}

.roadmap-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.roadmap-number {
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 600;
    margin: 0 auto 16px;
}

.roadmap-item h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.roadmap-item p {
    font-size: 13px;
    color: var(--gray-500);
    line-height: 1.6;
}

/* ==================== 联系我们 ==================== */
.contact {
    background: var(--gray-100);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    background: var(--white);
    padding: 24px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition-normal);
}

.contact-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 20px;
}

.contact-detail h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.contact-detail p {
    font-size: 16px;
    font-weight: 500;
    color: var(--dark);
}

.contact-form-wrapper {
    background: var(--white);
    border-radius: 16px;
    padding: 40px;
}

.contact-form h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition-fast);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

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

/* ==================== 页脚 ==================== */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 80px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 64px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 24px;
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 18px;
    transition: var(--transition-fast);
    text-decoration: none;
}

.social-link:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--white);
}

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

.footer-column li {
    margin-bottom: 12px;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition-fast);
}

.footer-column a:hover {
    color: var(--secondary);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1200px) {
    .values-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .roadmap-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    :root {
        --section-padding: 80px;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
        padding: 24px;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .info-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .resource-main {
        grid-template-columns: 1fr;
    }
    
    .business-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .platform-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .core-grid {
        grid-template-columns: 1fr;
    }
    
    .service-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .vision-main {
        grid-template-columns: 1fr;
    }
    
    .roadmap-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .info-cards {
        grid-template-columns: 1fr;
    }
    
    .cert-grid {
        grid-template-columns: 1fr;
    }
    
    .business-grid {
        grid-template-columns: 1fr;
    }
    
    .business-summary {
        grid-template-columns: 1fr;
    }
    
    .platform-grid {
        grid-template-columns: 1fr;
    }
    
    .integration-content {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .roadmap-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

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

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

/* 滚动显示动画 */
[data-aos] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}