/* 全局样式 */
:root {
    --primary-color: #0066CC;
    --secondary-color: #FF6633;
    --accent-color: #00A8E8;
    --dark-color: #1a1a2e;
    --light-color: #f8f9fa;
    --gray-color: #6c757d;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #0066CC 0%, #00A8E8 100%);
    --gradient-secondary: linear-gradient(135deg, #FF6633 0%, #FF8C42 100%);
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

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

.section-tag {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--primary-color);
    margin-bottom: 15px;
    text-transform: uppercase;
}

.section-header.light .section-tag {
    color: rgba(255, 255, 255, 0.8);
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark-color);
}

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

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

.section-header.light .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo img {
    height: 40px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.btn-training {
    background: var(--gradient-primary);
    color: var(--white) !important;
    padding: 10px 20px !important;
    border-radius: 25px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-training::after {
    display: none !important;
}

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    transition: var(--transition);
}

/* 首页Banner */
.hero {
    min-height: 100vh;
    background: var(--gradient-primary);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--white);
    position: relative;
    padding-top: 80px;
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 64px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    letter-spacing: 4px;
}

.hero-subtitle {
    font-size: 32px;
    font-weight: 300;
    margin-bottom: 20px;
    opacity: 0.95;
}

.hero-desc {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--white);
    color: var(--primary-color);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

.hero-stats {
    display: flex;
    gap: 80px;
    margin-top: 80px;
}

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

.stat-number {
    display: block;
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 16px;
    opacity: 0.9;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    animation: bounce 2s infinite;
}

.scroll-indicator i {
    font-size: 24px;
    opacity: 0.7;
}

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

/* 品牌理念 */
.brand-section {
    background: var(--light-color);
}

.brand-concept {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.concept-card {
    background: var(--white);
    padding: 50px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.concept-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.concept-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
}

.concept-icon i {
    font-size: 36px;
    color: var(--white);
}

.concept-card h3 {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.concept-subtitle {
    font-size: 18px;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.concept-desc {
    color: var(--gray-color);
    line-height: 1.8;
}

.brand-values {
    background: var(--white);
    padding: 50px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
}

.brand-values h3 {
    font-size: 28px;
    margin-bottom: 40px;
    color: var(--dark-color);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.value-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    padding: 30px;
    border-radius: 15px;
    transition: var(--transition);
}

.value-item:hover {
    background: var(--light-color);
}

.value-item i {
    font-size: 36px;
    color: var(--primary-color);
}

.value-item span {
    font-size: 16px;
    font-weight: 600;
}

/* 业务板块 */
.business-section {
    background: var(--dark-color);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.business-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

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

.business-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.1);
}

.business-card.flagship {
    grid-column: span 2;
    background: var(--gradient-primary);
}

.business-card.flagship::before {
    display: none;
}

.business-card.flagship:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 102, 204, 0.3);
}

.card-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--secondary-color);
    color: var(--white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.card-icon {
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.card-icon i {
    font-size: 32px;
    color: var(--white);
}

.business-card h3 {
    font-size: 24px;
    color: var(--white);
    margin-bottom: 10px;
}

.card-position {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin-bottom: 10px;
}

.card-value {
    color: var(--secondary-color);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 15px;
}

.card-desc {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.card-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.card-link:hover {
    gap: 15px;
}

/* 战略协同 */
.synergy-section {
    background: var(--gradient-primary);
    padding: 80px 0;
}

.synergy-content {
    text-align: center;
    color: var(--white);
}

.synergy-content h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.synergy-content > p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 50px;
}

.synergy-flow {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
}

.flow-item {
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    backdrop-filter: blur(10px);
}

.flow-item i {
    font-size: 32px;
}

.flow-item span {
    font-size: 16px;
    font-weight: 600;
}

.flow-arrow {
    font-size: 24px;
    opacity: 0.7;
}

/* 市场洞察 */
.market-section {
    background: var(--light-color);
}

.market-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.market-card {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.market-card:hover {
    transform: translateY(-5px);
}

.market-number {
    display: block;
    font-size: 42px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.market-label {
    display: block;
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 15px;
}

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

.market-position {
    background: var(--white);
    padding: 50px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
}

.market-position h3 {
    font-size: 14px;
    color: var(--gray-color);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.position-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.market-position > p:last-child {
    color: var(--gray-color);
    font-size: 16px;
}

/* 新闻动态 */
.news-section {
    background: var(--white);
}

.news-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

.news-card {
    background: var(--light-color);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
}

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

.news-card.featured {
    grid-row: span 2;
}

.news-image {
    height: 300px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.news-content {
    padding: 30px;
}

.news-date {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    margin-bottom: 15px;
}

.news-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.news-card p {
    color: var(--gray-color);
    line-height: 1.7;
    margin-bottom: 20px;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--secondary-color);
}

/* 联系我们 */
.contact-section {
    background: var(--dark-color);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

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

.info-item i {
    font-size: 24px;
    color: var(--primary-color);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.info-item h4 {
    color: var(--white);
    font-size: 18px;
    margin-bottom: 8px;
}

.info-item p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.contact-form {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 16px;
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: var(--dark-color);
    color: var(--white);
}

/* 页脚 */
.footer {
    background: #0f0f1a;
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.footer-slogan {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 10px;
}

.footer-mission {
    font-size: 14px;
    opacity: 0.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.link-group h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--white);
}

.link-group ul {
    list-style: none;
}

.link-group li {
    margin-bottom: 12px;
}

.link-group a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

.footer-bottom p {
    margin-bottom: 5px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .section {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 24px;
    }
    
    .hero-stats {
        gap: 40px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .brand-concept {
        grid-template-columns: 1fr;
    }
    
    .business-grid {
        grid-template-columns: 1fr;
    }
    
    .business-card.flagship {
        grid-column: span 1;
    }
    
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .market-stats {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .news-card.featured {
        grid-row: span 1;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        padding: 40px 0;
        box-shadow: var(--shadow);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .synergy-flow {
        flex-direction: column;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}