/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #0f172a;
    --accent-color: #f59e0b;
    --text-color: #1e293b;
    --text-light: #64748b;
    --text-lighter: #94a3b8;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

html {
    scroll-behavior: smooth;
}

/* 全局链接统一样式 */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

body {
    font-family: 'Inter Local', -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

/* 宽屏容器 - 参考原网站宽度 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.container-full {
    width: 100%;
    padding: 0 60px;
}

/* 顶部信息栏 - 现代风格 */
.top-bar {
    background: var(--gradient-dark);
    color: #fff;
    padding: 12px 0;
    font-size: 14px;
    position: relative;
    overflow: hidden;
}

.top-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: shimmer 3s infinite;
}

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

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

.top-bar i {
    margin-right: 8px;
    color: var(--accent-color);
}

.lang-switch a {
    color: #fff;
    text-decoration: none;
    transition: var(--transition);
    padding: 4px 12px;
    border-radius: 4px;
}

.lang-switch a:hover,
.lang-switch a.active {
    background: rgba(255,255,255,0.1);
    color: var(--accent-color);
}

/* 导航栏 - 现代透明风格 */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
}

.logo a {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.logo-text h1 {
    font-size: 28px;
    color: var(--secondary-color);
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.logo-text span {
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-list a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
    position: relative;
    padding: 8px 0;
}

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

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

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

.nav-list .fa-chevron-down {
    font-size: 12px;
    transition: var(--transition);
}

.dropdown:hover .fa-chevron-down {
    transform: rotate(180deg);
}

/* 下拉菜单 - 现代风格 */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    min-width: 220px;
    padding: 12px 0;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    list-style: none;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: #fff;
    border-left: 1px solid var(--border-color);
    border-top: 1px solid var(--border-color);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu li {
    padding: 0;
}

.dropdown-menu a {
    padding: 12px 24px;
    display: block;
    font-size: 14px;
    font-weight: 500;
}

.dropdown-menu a::after {
    display: none;
}

.dropdown-menu a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--primary-color);
    width: 45px;
    height: 45px;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    background: var(--bg-light);
}

/* 首页轮播Banner - 全屏宽屏 */
.hero-banner {
    position: relative;
    height: 100vh;
    min-height: 700px;
    max-height: 900px;
    overflow: hidden;
}

.banner-slider {
    position: relative;
    height: 100%;
    width: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.2s ease, transform 6s ease;
    transform: scale(1.1);
}

.slide.active {
    opacity: 1;
    transform: scale(1);
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.5) 0%, rgba(37, 99, 235, 0.45) 100%);
}

.slide::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40%;
    background: linear-gradient(to top, rgba(0,0,0,0.3), transparent);
}

.slide-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    text-align: left;
    color: #fff;
    padding: 0 60px;
    max-width: 1400px;
    margin: 0 auto;
}

.slide-content h2 {
    font-size: 72px;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 2px 2px 20px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards 0.3s;
    letter-spacing: -2px;
}

.slide-content h3 {
    font-size: 36px;
    font-weight: 300;
    margin-bottom: 40px;
    opacity: 0.95;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards 0.5s;
    color: var(--accent-color);
}

.slide-content p {
    font-size: 20px;
    max-width: 700px;
    line-height: 1.8;
    opacity: 0.9;
    margin-bottom: 15px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards 0.7s;
}

.slide-content .btn-group {
    margin-top: 40px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards 0.9s;
}

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

.btn-primary-large {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 18px 40px;
    background: var(--gradient-primary);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.4);
    border: none;
    cursor: pointer;
}

.btn-primary-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(37, 99, 235, 0.5);
}

.btn-secondary-large {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 18px 40px;
    background: transparent;
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid rgba(255,255,255,0.3);
    margin-left: 20px;
    cursor: pointer;
}

.btn-secondary-large:hover {
    background: rgba(255,255,255,0.1);
    border-color: #fff;
}

.banner-dots {
    position: absolute;
    bottom: 50px;
    left: 60px;
    display: flex;
    gap: 12px;
    z-index: 10;
}

.dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.dot.active {
    background-color: #fff;
    transform: scale(1.2);
}

.dot:hover {
    background-color: rgba(255, 255, 255, 0.6);
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 50px;
    right: 60px;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,0.7);
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-indicator i {
    font-size: 24px;
    animation: bounce 2s infinite;
}

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

/* 通用区块标题 - 现代风格 */
.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header.left {
    text-align: left;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-radius: 50px;
    margin-bottom: 20px;
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    color: var(--text-color);
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* 产品中心 - 现代卡片设计 */
.products-section {
    padding: 120px 0;
    background-color: var(--bg-light);
    position: relative;
    overflow: hidden;
}

.products-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.03) 0%, transparent 70%);
    pointer-events: none;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.product-card {
    background-color: var(--bg-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

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

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

.product-image {
    height: 240px;
    overflow: hidden;
    position: relative;
}

.product-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.3));
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-image::after {
    opacity: 1;
}

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

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-info {
    padding: 30px;
}

.product-info h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-color);
}

.product-info p {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.btn-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-more i {
    transition: var(--transition);
}

.btn-more:hover {
    gap: 12px;
}

/* 关于我们 - 现代布局 */
.about-section {
    padding: 120px 0;
    background-color: var(--bg-white);
    position: relative;
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 100px;
    align-items: center;
    margin-bottom: 100px;
}

.about-text {
    padding-right: 40px;
}

.about-desc {
    font-size: 18px;
    line-height: 2;
    color: var(--text-light);
    margin-bottom: 40px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.about-feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 16px;
    color: var(--text-color);
}

.about-feature-item i {
    width: 30px;
    height: 30px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 35px;
    background: var(--gradient-primary);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(37, 99, 235, 0.4);
}

.about-image {
    position: relative;
}

.about-image-main {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 2;
}

.about-image-main img {
    width: 100%;
    height: auto;
    display: block;
}

.about-image-accent {
    position: absolute;
    bottom: -30px;
    left: -30px;
    width: 200px;
    height: 200px;
    background: var(--gradient-primary);
    border-radius: 20px;
    z-index: 1;
    opacity: 0.1;
}

.about-image-accent-2 {
    position: absolute;
    top: -30px;
    right: -30px;
    width: 150px;
    height: 150px;
    border: 3px solid var(--primary-color);
    border-radius: 20px;
    z-index: 1;
    opacity: 0.2;
}

/* 数据统计 - 现代卡片 */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item {
    background: var(--bg-white);
    padding: 50px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
}

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

.stat-icon {
    width: 70px;
    height: 70px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: var(--primary-color);
    font-size: 28px;
}

.stat-number {
    font-size: 56px;
    font-weight: 800;
    color: var(--text-color);
    margin-bottom: 10px;
    line-height: 1;
}

.stat-number span {
    font-size: 32px;
    color: var(--primary-color);
}

.stat-label {
    font-size: 16px;
    color: var(--text-light);
    font-weight: 500;
}

/* 企业优势 - 现代网格 */
.advantages-section {
    padding: 120px 0;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.advantages-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.advantages-section .section-title {
    color: #fff;
}

.advantages-section .section-subtitle {
    color: rgba(255,255,255,0.6);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    position: relative;
    z-index: 1;
}

.advantage-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    padding: 50px 35px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.advantage-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.2);
}

.advantage-icon {
    width: 90px;
    height: 90px;
    background: var(--gradient-primary);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    box-shadow: 0 10px 40px rgba(37, 99, 235, 0.4);
    transition: var(--transition);
}

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

.advantage-icon i {
    font-size: 36px;
    color: #fff;
}

.advantage-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #fff;
}

.advantage-card p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 25px;
}

.btn-view {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-view:hover {
    gap: 12px;
}

/* 首页新闻动态 */
.news-section-home {
    padding: 100px 0;
    background: var(--bg-light);
}

.news-home-content {
    max-width: 1200px;
    margin: 0 auto;
}

.news-dynamics-list-home {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-bottom: 40px;
}

.news-dynamic-item-home {
    display: flex;
    align-items: center;
    padding: 25px;
    background: #fff;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-decoration: none;
    color: var(--text-color);
}

.news-dynamic-item-home:hover {
    background: rgba(37, 99, 235, 0.03);
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.news-dynamic-date-home {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 65px;
    height: 65px;
    background: var(--bg-light);
    border-radius: 12px;
    margin-right: 20px;
    flex-shrink: 0;
}

.news-dynamic-date-home .day {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
}

.news-dynamic-date-home .month {
    font-size: 12px;
    color: var(--text-lighter);
    margin-top: 3px;
}

.news-dynamic-content-home {
    flex: 1;
    min-width: 0;
}

.news-dynamic-content-home h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
    transition: var(--transition);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.news-dynamic-item-home:hover .news-dynamic-content-home h4 {
    color: var(--primary-color);
}

.news-dynamic-content-home p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-dynamic-arrow-home {
    width: 38px;
    height: 38px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-lighter);
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: 15px;
}

.news-dynamic-item-home:hover .news-dynamic-arrow-home {
    background: var(--primary-color);
    color: #fff;
}

.news-home-more {
    text-align: center;
}

.btn-view-more {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 40px;
    background: var(--gradient-primary);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.btn-view-more:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(37, 99, 235, 0.4);
}

/* CTA区域 - 渐变背景 */
.cta-section {
    padding: 140px 0;
    background: var(--gradient-primary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 52px;
    color: #fff;
    margin-bottom: 25px;
    font-weight: 800;
    letter-spacing: -1px;
}

.cta-content p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 50px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 20px 50px;
    background: #fff;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 50px;
    font-size: 18px;
    font-weight: 700;
    transition: var(--transition);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
}

/* 联系我们 - 现代布局 */
.contact-section {
    padding: 120px 0;
    background-color: var(--bg-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
}

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

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 25px;
    padding: 30px;
    background: var(--bg-light);
    border-radius: 16px;
    transition: var(--transition);
}

.contact-item:hover {
    background: rgba(37, 99, 235, 0.05);
    transform: translateX(10px);
}

.contact-item i {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: #fff;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.contact-item h4 {
    font-size: 20px;
    margin-bottom: 8px;
    color: var(--text-color);
    font-weight: 600;
}

.contact-item p {
    color: var(--text-light);
    font-size: 16px;
}

.contact-form {
    background: var(--bg-white);
    padding: 50px;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 25px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    transition: var(--transition);
    background: var(--bg-light);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--bg-white);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-lighter);
}

.btn-submit {
    width: 100%;
    padding: 18px;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(37, 99, 235, 0.4);
}

/* 验证码样式 */
.captcha-group {
    display: flex;
    gap: 15px;
    align-items: center;
}

.captcha-input {
    flex: 1;
}

.captcha-image {
    height: 58px;
    width: 120px;
    object-fit: cover;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    background-color: var(--bg-light);
}

.captcha-image:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

/* 页脚 - 深色现代风格 */
.footer {
    background: var(--secondary-color);
    color: #fff;
    padding: 100px 0 30px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand {
    max-width: 350px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.footer-logo-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
}

.footer-logo-text h3 {
    font-size: 24px;
    font-weight: 800;
}

.footer-logo-text span {
    font-size: 12px;
    color: var(--text-lighter);
    letter-spacing: 2px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
    font-size: 15px;
}

.footer-section h4 {
    font-size: 18px;
    margin-bottom: 25px;
    color: #fff;
    font-weight: 700;
    position: relative;
    padding-bottom: 15px;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

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

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

.footer-section ul a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 15px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-section ul a::before {
    content: '';
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.footer-section ul a:hover {
    color: #fff;
    padding-left: 10px;
}

.footer-section ul a:hover::before {
    width: 10px;
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 15px;
    font-size: 15px;
}

.footer-contact i {
    color: var(--primary-color);
    width: 20px;
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        padding: 0 30px;
    }
    
    .slide-content h2 {
        font-size: 56px;
    }
    
    .section-title {
        font-size: 40px;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .nav {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-text {
        padding-right: 0;
    }

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

    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        order: 2;
    }
    
    .contact-form {
        order: 1;
    }
    
    .captcha-group {
        flex-direction: row;
        align-items: center;
    }
    
    .captcha-image {
        height: 58px;
        width: 120px;
        margin: 0;
    }
}



@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    .hero-banner {
        min-height: 600px;
    }
    
    .slide-content {
        padding: 0 20px;
        text-align: center;
        align-items: center;
    }

    .slide-content h2 {
        font-size: 40px;
    }

    .slide-content h3 {
        font-size: 24px;
    }

    .slide-content p {
        font-size: 16px;
    }
    
    .btn-secondary-large {
        margin-left: 0;
        margin-top: 15px;
    }

    .section-title {
        font-size: 32px;
    }
    
    .section-subtitle {
        font-size: 16px;
    }

    .stats-row {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 42px;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }

    .cta-content h2 {
        font-size: 36px;
    }
    
    .cta-content p {
        font-size: 18px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-form {
        padding: 30px;
    }
    
    .banner-dots {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .scroll-indicator {
        display: none;
    }
}

@media (max-width: 480px) {
    .top-bar .container {
        flex-direction: column;
        gap: 8px;
    }

    .header .container {
        height: 80px;
    }

    .logo-text h1 {
        font-size: 22px;
    }
    
    .slide-content h2 {
        font-size: 32px;
    }
    
    .btn-primary-large,
    .btn-secondary-large {
        padding: 14px 30px;
        font-size: 14px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .stat-item {
        padding: 35px 20px;
    }
    
    .advantage-card {
        padding: 35px 25px;
    }
}