/* ============================================
   DHS-AUTO 企业网站样式表
   ============================================ */

/* 全局变量 */
:root {
    --primary-color: #0066cc;
    --secondary-color: #00b8d4;
    --accent-color: #ff6b35;
    --success-color: #4caf50;
    --dark-color: #1a1a2e;
    --light-color: #f8f9fa;
    --text-color: #333;
    --text-light: #666;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(90deg, #0066cc 0%, #00b8d4 100%);
    --shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 10px 30px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', Arial, sans-serif;
    line-height: 1.8;
    color: var(--text-color);
    background: #fff;
    overflow-x: hidden;
}

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

/* 选中文字样式 */
::selection {
    background: var(--primary-color);
    color: white;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-2);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}



/* 导航栏 */
.navbar {
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

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

.logo {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 5px;
}

.nav-menu a {
    color: var(--text-color);
    text-decoration: none;
    padding: 10px 15px;
    border-radius: 5px;
    transition: var(--transition);
    font-weight: 500;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    background: rgba(0, 102, 204, 0.05);
}

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

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

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* 首页横幅 */
.hero {
    position: relative;
    height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    margin-top: 80px;
    overflow: hidden;
}

.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
}

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

.hero-content {
    z-index: 1;
    padding: 20px;
    max-width: 800px;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    font-weight: 800;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease;
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: 40px;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.3s backwards;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 1s ease 0.6s backwards;
}

.btn-primary,
.btn-secondary {
    padding: 15px 40px;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-3px);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-1);
}

.hero-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 2;
}

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

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

.hero-scroll {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: white;
    animation: bounce 2s infinite;
    z-index: 2;
}

.hero-scroll span {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 3px solid white;
    border-bottom: 3px solid white;
    transform: rotate(45deg);
    margin: 0 auto;
}

/* 快速导航 */
.quick-links {
    background: white;
    padding: 60px 0;
    margin-top: -50px;
    position: relative;
    z-index: 10;
}

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

.quick-link-item {
    background: white;
    padding: 30px 20px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    text-decoration: none;
    color: var(--text-color);
}

.quick-link-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.quick-link-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.quick-link-item h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.quick-link-item p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* 通用区块样式 */
section {
    padding: 100px 0;
}

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

.section-subtitle {
    display: block;
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.section-title {
    font-size: 2.8rem;
    margin-bottom: 15px;
    color: var(--text-color);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--gradient-2);
    margin: 15px auto 0;
    border-radius: 2px;
}

.section-desc {
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们 */
.about {
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image svg {
    width: 100%;
    height: auto;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--text-light);
    line-height: 2;
}

.about-features {
    margin: 30px 0;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    color: var(--text-color);
}

.feature-icon {
    color: var(--success-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.btn-learn-more {
    display: inline-block;
    padding: 12px 30px;
    background: var(--gradient-2);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-learn-more:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

/* 数据统计 */
.stats-section {
    background: var(--gradient-1);
    color: white;
    padding: 80px 0;
}

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

.stat-card {
    text-align: center;
    padding: 40px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
}

.stat-number {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 10px;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.stat-icon {
    font-size: 2rem;
    opacity: 0.8;
}

/* 产品中心 */
.products {
    background: var(--light-color);
}

.products-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
}

.filter-btn {
    padding: 10px 30px;
    background: white;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 25px;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: white;
}

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

.product-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    opacity: 1;
    transform: translateY(0);
}

.product-card.hidden {
    display: none;
}

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

.product-image {
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f4f8 0%, #e8f4f8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-content {
    padding: 30px;
}

.product-content h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.product-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
}

.product-specs {
    list-style: none;
    margin-bottom: 20px;
}

.product-specs li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-color);
    font-size: 0.95rem;
}

.product-specs li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-size: 1.2rem;
}

.product-link {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.product-link:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

/* 解决方案 */
.solutions {
    background: white;
}

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

.solution-item {
    position: relative;
    padding: 50px 30px;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 5px solid var(--primary-color);
}

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

.solution-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 4rem;
    font-weight: 800;
    color: rgba(102, 126, 234, 0.1);
    line-height: 1;
}

.solution-content h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.solution-content p {
    color: var(--text-light);
    margin-bottom: 25px;
    line-height: 1.8;
}

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

.solution-features li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    color: var(--text-color);
}

.solution-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* 核心优势 */
.advantages {
    background: var(--light-color);
}

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

.advantage-item {
    text-align: center;
    padding: 40px 30px;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.advantage-icon {
    margin-bottom: 25px;
}

.advantage-item h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.advantage-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 成功案例 */
.cases {
    background: white;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.case-card {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
}

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

.case-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.case-card h3 {
    font-size: 1.4rem;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.case-type {
    color: var(--secondary-color);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 15px;
    display: inline-block;
}

.case-desc {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.case-result {
    display: flex;
    gap: 15px;
}

.result-item {
    padding: 8px 20px;
    background: var(--gradient-1);
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

/* 新闻资讯 */
.news {
    background: var(--light-color);
}

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

.news-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

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

.news-date {
    padding: 20px 30px;
    background: var(--gradient-2);
    color: white;
    text-align: center;
}

.news-date .day {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
}

.news-date .month {
    font-size: 0.9rem;
    opacity: 0.9;
}

.news-content {
    padding: 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-content h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-color);
    line-height: 1.6;
}

.news-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
    flex: 1;
}

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

.read-more:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

/* 联系我们 */
.contact {
    background: var(--gradient-1);
    color: white;
}

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

.contact .section-title {
    color: white;
}

.contact .section-desc {
    color: rgba(255, 255, 255, 0.8);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.15);
}

.contact-icon {
    font-size: 2rem;
    min-width: 50px;
}

.contact-text h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    font-weight: 600;
}

.contact-text p {
    color: rgba(255, 255, 255, 0.9);
}

.contact-text a {
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

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

.map-placeholder {
    margin-top: 30px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.contact-form-wrapper {
    background: white;
    padding: 40px;
    border-radius: 15px;
    color: var(--text-color);
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--primary-color);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    width: 100%;
    padding: 15px;
    background: var(--gradient-2);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

/* 页脚 */
.footer {
    background: var(--dark-color);
    color: white;
}

.footer-main {
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-about p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin: 20px 0;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.2rem;
    margin-bottom: 25px;
    color: white;
}

.footer-links ul,
.footer-contact ul {
    list-style: none;
}

.footer-links li,
.footer-contact li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.footer-contact li {
    color: rgba(255, 255, 255, 0.7);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.9rem;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    background: rgba(0, 0, 0, 0.3);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    margin: 0 10px;
}

.footer-bottom a:hover {
    color: white;
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-2);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow);
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* ============================================
   子页面样式
   ============================================ */

/* 页面标题横幅 */
.page-header {
    position: relative;
    padding: 120px 0 80px;
    background: var(--gradient-1);
    color: white;
    text-align: center;
    overflow: hidden;
}

.page-header-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-1);
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 15px;
    font-weight: 800;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.95;
    margin-bottom: 30px;
}

.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 10px 25px;
    border-radius: 25px;
}

.breadcrumb a {
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

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

.breadcrumb span {
    opacity: 0.7;
}

/* 关于我们页面 */
.about-page-section {
    padding: 80px 0;
    background: white;
}

.about-page-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-page-image svg {
    width: 100%;
    height: auto;
}

.about-page-text h2 {
    font-size: 2rem;
    margin-bottom: 25px;
    color: var(--primary-color);
}

.about-page-text p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--text-light);
    line-height: 2;
}

/* 时间线 */
.timeline-section {
    padding: 80px 0;
    background: var(--light-color);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: var(--gradient-2);
    border-radius: 2px;
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: 40px;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-year {
    width: 100px;
    height: 100px;
    background: var(--gradient-2);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
    z-index: 1;
    box-shadow: var(--shadow);
}

.timeline-content {
    flex: 1;
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    margin: 0 30px;
    transition: var(--transition);
}

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

.timeline-content h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.timeline-content p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 企业文化 */
.culture-section {
    padding: 80px 0;
    background: white;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.culture-item {
    text-align: center;
    padding: 40px;
    background: var(--light-color);
    border-radius: 15px;
    transition: var(--transition);
}

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

.culture-icon {
    margin-bottom: 25px;
}

.culture-item h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.culture-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 资质荣誉 */
.certifications-section {
    padding: 80px 0;
    background: var(--gradient-1);
    color: white;
}

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

.certifications-section .section-title {
    color: white;
}

.certifications-section .section-title::after {
    background: white;
}

.certifications-section .section-desc {
    color: rgba(255, 255, 255, 0.8);
}

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

.cert-item {
    text-align: center;
    padding: 40px 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.cert-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-10px);
}

.cert-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.cert-item h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.cert-item p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

/* 产品中心页面 */
.products-page-filter {
    padding: 40px 0;
    background: white;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.products-page-section {
    padding: 80px 0;
}

.products-page-section.alt-bg {
    background: var(--light-color);
}

.section-title-with-line {
    font-size: 2rem;
    margin-bottom: 50px;
    padding-bottom: 20px;
    border-bottom: 3px solid var(--gradient-2);
    color: var(--primary-color);
}

/* 产品详情卡片 */
.product-detail-card {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.product-detail-image {
    background: var(--light-color);
    border-radius: 15px;
    overflow: hidden;
}

.product-detail-image svg {
    width: 100%;
    height: auto;
}

.product-detail-info h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.product-model {
    color: var(--text-light);
    font-weight: 600;
    margin-bottom: 20px;
}

.product-description {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 30px;
}

.product-specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--light-color);
    border-radius: 10px;
}

.spec-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

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

.spec-value {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.product-features h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.product-features ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.product-features li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-color);
}

.product-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* 解决方案页面 */
.solution-page-section {
    padding: 80px 0;
}

.solution-page-section.alt-bg {
    background: var(--light-color);
}

.solution-page-card {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    align-items: start;
}

.solution-page-icon {
    position: sticky;
    top: 120px;
}

.solution-page-content {
    position: relative;
}

.solution-number {
    position: absolute;
    top: -30px;
    right: 0;
    font-size: 5rem;
    font-weight: 800;
    color: rgba(102, 126, 234, 0.1);
    line-height: 1;
}

.solution-page-content h2 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.solution-intro {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 30px;
}

.solution-details h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.solution-products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.solution-product-item {
    padding: 25px;
    background: var(--light-color);
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
}

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

.solution-product-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.solution-product-item h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.solution-product-item p {
    font-size: 0.9rem;
    color: var(--text-light);
}

.solution-features {
    padding: 25px;
    background: rgba(76, 175, 80, 0.1);
    border-radius: 10px;
    margin-bottom: 30px;
}

.solution-features h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--success-color);
}

.solution-features ul {
    list-style: none;
}

.solution-features li {
    padding: 10px 0;
    font-size: 1.05rem;
    color: var(--text-color);
}

.solution-industry h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.industry-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.industry-tag {
    padding: 8px 20px;
    background: var(--gradient-2);
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* 为什么选择我们 */
.why-us-section {
    padding: 80px 0;
    background: white;
}

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

.why-us-item {
    text-align: center;
    padding: 40px 30px;
    background: var(--light-color);
    border-radius: 15px;
    transition: var(--transition);
}

.why-us-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.why-us-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.why-us-item h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.why-us-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 服务流程 */
.service-process-section {
    padding: 80px 0;
    background: var(--gradient-1);
    color: white;
}

.service-process-section .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.service-process-section .section-title {
    color: white;
}

.service-process-section .section-title::after {
    background: white;
}

.service-process-section .section-desc {
    color: rgba(255, 255, 255, 0.8);
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.process-step {
    flex: 1;
    min-width: 180px;
    text-align: center;
    padding: 30px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

.step-number {
    width: 60px;
    height: 60px;
    background: white;
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 20px;
}

.step-content h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.step-content p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.process-arrow {
    font-size: 2rem;
    color: rgba(255, 255, 255, 0.8);
}

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

@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 h1 {
        font-size: 3rem;
    }

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

    .cases-grid {
        grid-template-columns: 1fr;
    }

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

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

    .contact-content {
        grid-template-columns: 1fr;
    }

    .about-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .navbar .container {
        flex-wrap: wrap;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .hamburger {
        display: flex;
    }

    .hero {
        height: calc(100vh - 80px);
        margin-top: 80px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

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

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

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

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

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .products-filter {
        flex-wrap: wrap;
    }

    .filter-btn {
        padding: 8px 20px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .quick-links-grid {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 3rem;
    }
}