/* ==================== 基础设置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1890FF;
    --primary-dark: #096DD9;
    --primary-light: #40A9FF;
    --secondary-color: #07C160;
    --text-primary: #1F2329;
    --text-secondary: #646A73;
    --text-light: #8C8C8C;
    --bg-white: #FFFFFF;
    --bg-light: #F5F7FA;
    --bg-dark: #1F2329;
    --border-color: #E5E6EB;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background: var(--bg-white);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    height: 64px;
}

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

.logo-img {
    height: 54px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    color: var(--text-secondary);
    padding: 8px 0;
    position: relative;
    transition: var(--transition);
}

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

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

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

/* 下拉菜单 */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
}

.nav-dropdown-toggle i {
    font-size: 10px;
    transition: transform 0.3s ease;
}

.nav-dropdown:hover .nav-dropdown-toggle i {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 16px;
    min-width: 500px;
    display: none;
    opacity: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

/* 桌面端：hover 显示下拉菜单 */
@media (min-width: 769px) {
    .nav-dropdown:hover .nav-dropdown-menu {
        display: flex;
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    
    .nav-dropdown:hover .nav-dropdown-toggle i {
        transform: rotate(180deg);
    }
}

/* 移动端：点击激活状态 */
@media (max-width: 768px) {
    .nav-dropdown.active .nav-dropdown-menu {
        display: flex;
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    
    .nav-dropdown.active .nav-dropdown-toggle i {
        transform: rotate(180deg);
    }
}

.dropdown-group {
    flex: 1;
    padding: 0 12px;
}

.dropdown-group:first-child {
    border-right: 1px solid var(--border-color);
}

.dropdown-group-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--primary-color);
    display: inline-block;
}

.dropdown-item {
    display: block;
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    color: var(--primary-color);
    padding-left: 8px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.hotline {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.hotline:hover {
    color: var(--primary-color);
}

.btn-consult {
    background: var(--primary-color);
    color: white;
    padding: 8px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.btn-consult:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

/* ==================== Hero 区域 ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, rgba(13, 27, 62, 0.85), rgba(26, 58, 110, 0.85)), url('images/banner-home.png');
    background-size: cover;
    background-position: center;
    overflow: hidden;
    padding: 120px 24px 80px;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
}

.hero-logo {
    margin-bottom: 30px;
}

.hero-logo img {
    height: 120px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.95;
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    color: white;
    line-height: 1.3;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    margin-bottom: 40px;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(13, 27, 62, 0.7), rgba(26, 58, 110, 0.7));
    z-index: 1;
}

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 14px 40px;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(24, 144, 255, 0.4);
}

.btn-secondary {
    display: inline-block;
    background: transparent;
    color: white;
    padding: 14px 40px;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 500;
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: var(--transition);
}

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

.hero-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(24, 144, 255, 0.3), transparent);
}

.circle-1 {
    width: 600px;
    height: 600px;
    top: -200px;
    right: -200px;
    animation: float 8s ease-in-out infinite;
}

.circle-2 {
    width: 400px;
    height: 400px;
    bottom: -100px;
    left: -100px;
    animation: float 10s ease-in-out infinite reverse;
}

.circle-3 {
    width: 300px;
    height: 300px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.5; transform: translate(-50%, -50%) scale(1.1); }
}

/* ==================== 核心优势 ==================== */
.advantages {
    background: var(--bg-white);
    padding: 80px 0;
    margin-top: -40px;
    position: relative;
    z-index: 10;
}

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

.advantage-item {
    background: var(--bg-white);
    padding: 32px 24px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.advantage-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.advantage-icon i {
    font-size: 28px;
    color: white;
}

/* 自定义图片图标 */
.advantage-icon img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: 50%;
    background: white;
    padding: 4px;
}

.advantage-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.advantage-item p {
    font-size: 14px;
    color: var(--text-light);
}

/* ==================== 通用区块标题 ==================== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-light);
}

/* ==================== 产品服务 ==================== */
.products {
    background: var(--bg-light);
    padding: 80px 0;
}

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

.product-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.product-image {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, var(--bg-light), #E8F4FF);
    position: relative;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.product-image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.product-image-placeholder i {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.8;
}

.product-image-placeholder span {
    font-size: 14px;
    font-weight: 500;
    opacity: 0.6;
}

.product-content {
    padding: 24px;
}

.product-icon {
    display: none; /* 图片模式下隐藏图标 */
}

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

.product-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 16px;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.product-feature-tag {
    background: var(--bg-light);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    color: var(--text-secondary);
}

/* ==================== 数据成果 ==================== */
.stats {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

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

.stat-number {
    font-size: 48px;
    font-weight: 700;
    display: inline;
}

.stat-unit {
    font-size: 32px;
    font-weight: 700;
    display: inline;
}

.stat-label {
    font-size: 16px;
    opacity: 0.9;
    margin-top: 8px;
}

/* ==================== 解决方案 ==================== */
.solutions {
    background: var(--bg-white);
    padding: 80px 0;
}

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

.solution-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.solution-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(24, 144, 255, 0.1), rgba(24, 144, 255, 0.05));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

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

.solution-card > p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 20px;
}

.solution-features {
    text-align: left;
}

.solution-features li {
    font-size: 13px;
    color: var(--text-secondary);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

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

/* ==================== 关于我们 ==================== */
.about {
    background: var(--bg-light);
    padding: 80px 0;
}

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

.about-text .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.about-text p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-features {
    margin-top: 32px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
}

.about-feature i {
    color: var(--secondary-color);
    font-size: 18px;
}

.about-feature span {
    font-size: 15px;
    color: var(--text-primary);
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

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

.placeholder-img {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
}

.placeholder-img i {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.8;
}

.placeholder-img p {
    font-size: 16px;
    opacity: 0.8;
}

/* ==================== 客户案例 ==================== */
.cases {
    background: var(--bg-white);
    padding: 80px 0;
}

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

.case-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.case-logo {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.case-logo i {
    font-size: 28px;
    color: white;
}

.case-card h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.case-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ==================== 联系我们 ==================== */
.contact {
    background: var(--bg-light);
    padding: 80px 0;
}

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

.contact-info h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.contact-info > p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-item i {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    flex-shrink: 0;
}

.contact-item div {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.contact-value {
    font-size: 16px;
    color: var(--text-primary);
    font-weight: 500;
}

.contact-form {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

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

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

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    margin-bottom: 16px;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.1);
}

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

.btn-submit {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(24, 144, 255, 0.4);
}

/* ==================== 在线客服 ==================== */
.online-service {
    position: fixed;
    right: 24px;
    bottom: 100px;
    z-index: 999;
}

.service-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--secondary-color), #52C41A);
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 16px rgba(7, 193, 96, 0.4);
    transition: var(--transition);
}

.service-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(7, 193, 96, 0.5);
}

.service-btn i {
    font-size: 20px;
}

/* ==================== 页脚 ==================== */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 60px 0 0;
}

.footer-brand {
    text-align: center;
    margin-bottom: 40px;
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: 12px;
    filter: brightness(0) invert(1);
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

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

.footer-col ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--primary-light);
}

.footer-col-qr .qr-code {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

.qr-placeholder {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
}

.qr-placeholder i {
    font-size: 32px;
    margin-bottom: 8px;
}

.qr-placeholder p {
    font-size: 11px;
}

/* 产品服务双列布局 */
.footer-col-split {
    min-width: 0;
}

.footer-split-wrapper {
    display: flex;
    gap: 0;
}

.footer-split-col {
    flex: 1;
    min-width: 0;
}

.footer-split-group-title {
    font-size: 12px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-split-col ul {
    margin-top: 0;
}

.footer-split-col:first-child {
    padding-right: 24px;
}

.footer-split-col:last-child {
    padding-left: 24px;
    border-left: 1px solid rgba(255, 255, 255, 0.08);
}

/* 联系我们列 - 小图标 */
.footer-contact-list li {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.footer-contact-list li i {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    width: 16px;
    text-align: center;
    flex-shrink: 0;
}

.footer-contact-list li span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

/* 二维码图片 */
.qr-img {
    width: 100px;
    height: 100px;
    border-radius: 4px;
    display: block;
}

.qr-caption {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 4px;
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom a:hover {
    color: var(--primary-light);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solution-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    /* 导航栏 */
    .nav-links {
        display: none;
    }
    
    .nav-actions {
        gap: 12px;
    }
    
    .hotline {
        display: none;
    }
    
    .btn-consult {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    /* 汉堡菜单按钮 */
    .menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 24px;
        height: 18px;
        cursor: pointer;
        padding: 0;
        background: none;
        border: none;
    }
    
    .menu-toggle span {
        display: block;
        width: 100%;
        height: 2px;
        background: var(--text-primary);
        border-radius: 2px;
        transition: all 0.3s ease;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    /* 移动端导航菜单 */
    .mobile-nav {
        display: none;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: white;
        box-shadow: var(--shadow-md);
        z-index: 999;
        padding: 16px 0;
    }
    
    .mobile-nav.active {
        display: block;
    }
    
    .mobile-nav a {
        display: block;
        padding: 14px 24px;
        font-size: 15px;
        color: var(--text-primary);
        border-bottom: 1px solid var(--border-color);
        transition: var(--transition);
    }
    
    .mobile-nav a:hover,
    .mobile-nav a.active {
        background: var(--bg-light);
        color: var(--primary-color);
    }
    
    .mobile-nav a:last-child {
        border-bottom: none;
    }
    
    /* Hero区域 */
    .hero {
        padding: 100px 20px 60px;
        min-height: auto;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 14px;
        margin-bottom: 30px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 280px;
        text-align: center;
        padding: 12px 24px;
    }
    
    .hero-logo img {
        height: 80px;
    }
    
    .hero-decoration .circle {
        display: none;
    }
    
    /* 核心优势 */
    .advantages {
        padding: 60px 0;
        margin-top: -20px;
    }
    
    .advantage-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .advantage-item {
        padding: 24px 20px;
    }
    
    .advantage-icon {
        width: 56px;
        height: 56px;
    }
    
    .advantage-icon i {
        font-size: 24px;
    }
    
    /* 产品服务 */
    .products {
        padding: 60px 0;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .product-image {
        height: 160px;
    }
    
    .product-content {
        padding: 20px;
    }
    
    .product-card h3 {
        font-size: 16px;
    }
    
    .product-card p {
        font-size: 13px;
    }
    
    /* 数据成果 */
    .stats {
        padding: 60px 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    .stat-number {
        font-size: 32px;
    }
    
    .stat-unit {
        font-size: 24px;
    }
    
    .stat-label {
        font-size: 13px;
    }
    
    /* 解决方案 */
    .solutions {
        padding: 60px 0;
    }
    
    .solution-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .solution-card {
        padding: 24px 20px;
    }
    
    .solution-icon {
        width: 60px;
        height: 60px;
    }
    
    .solution-icon i {
        font-size: 28px;
    }
    
    /* 关于我们 */
    .about {
        padding: 60px 0;
    }
    
    .about-text .section-title {
        text-align: center;
    }
    
    .about-text p {
        font-size: 14px;
    }
    
    .about-features {
        text-align: left;
    }
    
    .about-feature {
        padding: 10px 0;
    }
    
    .about-feature span {
        font-size: 14px;
    }
    
    .placeholder-img {
        height: 200px;
    }
    
    /* 客户案例 */
    .cases {
        padding: 60px 0;
    }
    
    .case-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .case-card {
        padding: 24px 20px;
    }
    
    /* 联系我们 */
    .contact {
        padding: 60px 0;
    }
    
    .contact-wrapper {
        gap: 40px;
    }
    
    .contact-info h2 {
        font-size: 24px;
        text-align: center;
    }
    
    .contact-info > p {
        text-align: center;
    }
    
    .contact-form {
        padding: 24px 20px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form input,
    .contact-form textarea {
        padding: 12px 14px;
        font-size: 14px;
    }
    
    /* 在线客服 */
    .online-service {
        right: 16px;
        bottom: 80px;
    }
    
    .service-btn {
        padding: 14px;
        border-radius: 50%;
        width: 56px;
        height: 56px;
        justify-content: center;
    }
    
    .service-btn span {
        display: none;
    }
    
    .service-btn i {
        font-size: 24px;
    }
    
    /* 页脚 */
    .footer {
        padding: 40px 0 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 32px;
    }

    .footer-col {
        padding-bottom: 24px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-col:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }

    .footer-col h4 {
        margin-bottom: 16px;
    }

    .footer-col ul li {
        margin-bottom: 10px;
    }

    .footer-col ul li a {
        font-size: 13px;
    }

    /* 产品服务双列 - 移动端堆叠 */
    .footer-split-wrapper {
        flex-direction: column;
        gap: 0;
    }

    .footer-split-col {
        text-align: left;
    }

    .footer-split-col:first-child {
        padding-right: 0;
        padding-bottom: 16px;
        margin-bottom: 16px;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-split-col:last-child {
        padding-left: 0;
        border-left: none;
    }

    .footer-col-qr .qr-code {
        align-items: center;
    }

    .qr-placeholder {
        width: 80px;
        height: 80px;
        margin: 0 auto;
    }

    .qr-img {
        width: 80px;
        height: 80px;
        margin: 0 auto;
    }

    .qr-caption {
        text-align: center;
    }
    
    .footer-bottom {
        padding: 16px 0;
    }
    
    .footer-bottom p {
        font-size: 12px;
        line-height: 1.6;
    }
    
    /* 通用 */
    .section-title {
        font-size: 24px;
    }
    
    .section-subtitle {
        font-size: 14px;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
}

/* 极小屏幕 */
@media (max-width: 375px) {
    .hero-title {
        font-size: 26px;
    }
    
    .hero-subtitle {
        font-size: 13px;
    }
    
    .btn-primary,
    .btn-secondary {
        max-width: 240px;
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .stat-unit {
        font-size: 20px;
    }
}

/* ==================== 咨询弹窗 ==================== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal-overlay.active {
    display: flex;
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-content {
    background: white;
    border-radius: 20px;
    padding: 48px 40px;
    max-width: 420px;
    width: 90%;
    text-align: center;
    position: relative;
    animation: slideUp 0.4s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-light);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--border-color);
}

.modal-close i {
    font-size: 16px;
    color: var(--text-secondary);
}

.modal-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, #FF6B35, #FF8E53);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.modal-icon i {
    font-size: 32px;
    color: white;
}

.modal-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.modal-subtitle {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.modal-desc {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.modal-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.modal-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 24px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-decoration: none;
}

.modal-btn i {
    font-size: 20px;
}

.modal-btn-phone {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

.modal-btn-phone:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(24, 144, 255, 0.4);
}

.modal-btn-wechat {
    background: linear-gradient(135deg, var(--secondary-color), #52C41A);
    color: white;
}

.modal-btn-wechat:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(7, 193, 96, 0.4);
}

/* 响应式 - 弹窗 */
@media (max-width: 480px) {
    .modal-content {
        padding: 40px 28px;
        margin: 20px;
    }
    
    .modal-icon {
        width: 64px;
        height: 64px;
    }
    
    .modal-icon i {
        font-size: 28px;
    }
    
    .modal-title {
        font-size: 26px;
    }
    
    .modal-subtitle {
        font-size: 18px;
    }
    
    .modal-desc {
        font-size: 14px;
    }
    
    .modal-btn {
        padding: 14px 20px;
        font-size: 15px;
    }
}

/* 极小屏幕 */
@media (max-width: 375px) {
    .modal-content {
        padding: 32px 20px;
    }
    
    .modal-title {
        font-size: 24px;
    }
}

/* ==================== 移动端菜单按钮 ==================== */
.menu-toggle {
    display: none;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
}

/* ==================== 动画 ==================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== 页面标题 ==================== */
.page-header {
    position: relative;
    padding: 80px 0 60px;
    text-align: center;
    color: white;
    margin-top: 64px;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(24, 144, 255, 0.9), rgba(9, 109, 217, 0.9));
    z-index: 1;
}

.page-header .container {
    position: relative;
    z-index: 2;
}

/* 各页面Banner背景 */
.page-header.products-header {
    background: url('images/banner-products.png') center/cover;
}

.page-header.solutions-header {
    background: url('images/banner-solutions.png') center/cover;
}

.page-header.about-header {
    background: url('images/banner-about.png') center/cover;
}

.page-header.contact-header {
    background: url('images/banner-contact.png') center/cover;
}

.page-header h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
}

/* ==================== 快速入口 ==================== */
.quick-entry {
    padding: 80px 0;
    background: var(--bg-light);
}

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

.quick-card {
    background: white;
    padding: 32px 24px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

.quick-card i {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 16px;
}

/* 自定义图片图标 */
.quick-card img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    margin-bottom: 16px;
}

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

.quick-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.quick-arrow {
    display: inline-block;
    width: 36px;
    height: 36px;
    background: var(--bg-light);
    border-radius: 50%;
    line-height: 36px;
    color: var(--primary-color);
    transition: var(--transition);
}

.quick-card:hover .quick-arrow {
    background: var(--primary-color);
    color: white;
}

/* ==================== 合作伙伴 ==================== */
.partners {
    padding: 60px 0;
}

.partner-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    flex-wrap: wrap;
}

.partner-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-light);
}

.partner-item i {
    font-size: 48px;
}

/* 自定义图片图标 */
.partner-item img {
    width: 64px;
    height: 64px;
    object-fit: contain;
}

.partner-item span {
    font-size: 14px;
    font-weight: 500;
}

/* ==================== 服务流程 ==================== */
.service-process {
    padding: 80px 0;
    background: var(--bg-light);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

.process-item {
    text-align: center;
    position: relative;
}

.process-num {
    font-size: 48px;
    font-weight: 700;
    color: var(--border-color);
    margin-bottom: 16px;
}

.process-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.process-icon i {
    font-size: 28px;
    color: white;
}

.process-item h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.process-item p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ==================== CTA区块 ==================== */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.cta-content {
    text-align: center;
    color: white;
}

.cta-content h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-content p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 32px;
}

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

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

.cta-buttons .btn-primary:hover {
    background: var(--bg-light);
}

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

.cta-buttons .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ==================== 解决方案详情 ==================== */
.page-solutions {
    padding: 80px 0;
}

.solution-detail {
    background: white;
    border-radius: var(--radius-lg);
    padding: 60px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-sm);
}

.solution-detail-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.solution-detail-content.reverse {
    flex-direction: row-reverse;
}

.solution-detail-icon {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.solution-detail-icon i {
    font-size: 56px;
    color: white;
}

.solution-detail-text {
    flex: 1;
}

.solution-detail-text h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.solution-detail-desc {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.solution-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 24px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.feature-item i {
    width: 40px;
    height: 40px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 16px;
    flex-shrink: 0;
}

.feature-item h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.feature-item p {
    font-size: 13px;
    color: var(--text-secondary);
}

.solution-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.solution-tags span {
    padding: 6px 16px;
    background: var(--bg-light);
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-secondary);
}

/* ==================== 公司简介详情 ==================== */
.about-intro {
    padding: 80px 0;
}

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

/* 图片与正文第一行对齐：跳过 h2 标题的高度 */
.about-intro-image {
    padding-top: 66px;
}

.about-intro-text h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.about-intro-text p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-intro-text .about-features {
    margin-top: 32px;
}

.about-intro-image .company-image {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.about-intro-image .company-image i {
    font-size: 80px;
    margin-bottom: 16px;
}

.about-intro-image .company-image p {
    font-size: 14px;
}

/* ==================== 企业文化 ==================== */
.culture {
    padding: 80px 0;
    background: var(--bg-light);
}

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

.culture-item {
    text-align: center;
    padding: 40px 24px;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.culture-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.culture-icon i {
    font-size: 32px;
    color: white;
}

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

.culture-item p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ==================== 关于页面案例 ==================== */
.about-cases {
    padding: 80px 0;
}

.about-cases .case-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
}

.about-cases .case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.about-cases .case-logo {
    width: 64px;
    height: 64px;
    background: var(--primary-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.about-cases .case-logo i {
    font-size: 28px;
    color: white;
}

.about-cases .case-card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.about-cases .case-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.case-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bg-light);
    border-radius: 20px;
    font-size: 12px;
    color: var(--text-light);
}

/* ==================== 联系我们页面 ==================== */
.contact-page {
    padding: 80px 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: stretch; /* 让两边卡片高度一致 */
}

/* ===== 统一卡片样式 ===== */
.contact-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
}

/* 卡片头部 - 左右统一 */
.contact-card-header {
    margin-bottom: 36px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.contact-card-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.3;
}

.contact-card-subtitle {
    font-size: 15px;
    color: var(--text-secondary);
}

/* ===== 左侧信息区 ===== */
.contact-info-body {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* 联系信息列表 */
.contact-row-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: 16px;
}

.contact-row-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.contact-row-item:hover {
    padding-left: 4px;
}

.contact-row-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 16px;
    flex-shrink: 0;
}

.contact-row-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.contact-row-label {
    font-size: 12px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-row-value {
    font-size: 15px;
    color: var(--text-primary);
    font-weight: 500;
}

.contact-row-value a {
    color: var(--text-primary);
    transition: var(--transition);
}

.contact-row-value a:hover {
    color: var(--primary-color);
}

/* 地图区域 */
.contact-map-mini {
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
    margin-bottom: 0;
}

.map-mini-container {
    width: 100%;
    height: 160px;
    position: relative;
}

.map-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.map-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-placeholder-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    padding: 20px;
    transition: var(--transition);
}

.map-placeholder-link:hover {
    transform: scale(1.02);
}

.map-placeholder-link i {
    font-size: 40px;
    color: var(--primary-color);
}

.map-placeholder-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
}

.map-placeholder-hint {
    font-size: 12px;
    color: var(--primary-color);
    padding: 4px 14px;
    border: 1px solid var(--primary-color);
    border-radius: 20px;
}

.map-mini-btn {
    display: block;
    text-align: center;
    padding: 10px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.map-mini-btn:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.map-mini-btn i {
    margin-right: 6px;
}

/* 微信客服 */
.contact-wechat-row {
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(24, 144, 255, 0.06), rgba(24, 144, 255, 0.02));
    border: 1px solid rgba(24, 144, 255, 0.12);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin-top: auto; /* 推到底部 */
}

.contact-wechat-info {
    display: flex;
    align-items: center;
    gap: 14px;
}

.contact-wechat-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--secondary-color), #52C41A);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-wechat-text h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.contact-wechat-text p {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0;
}

.wechat-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--secondary-color), #52C41A);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    flex-shrink: 0;
}

.wechat-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(7, 193, 96, 0.35);
}

/* ===== 右侧表单 ===== */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex: 1;
}

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

.contact-form .form-group {
    margin-bottom: 0;
}

.contact-form label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-secondary);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.1);
}

.contact-form textarea {
    resize: none;
    flex: 1;
    min-height: 80px;
}

.form-group-full {
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.form-group-full textarea {
    flex: 1;
    min-height: 80px;
}

.contact-form .btn-submit {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.contact-form .btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(24, 144, 255, 0.4);
}

/* ==================== 服务承诺 ==================== */
.service-promise {
    padding: 80px 0;
    background: var(--bg-light);
}

.promise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.promise-item {
    text-align: center;
    padding: 32px 24px;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.promise-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.promise-icon i {
    font-size: 28px;
    color: white;
}

.promise-item h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.promise-item p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ==================== 响应式 - 新页面 ==================== */
@media (max-width: 1024px) {
    .quick-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .about-intro-content {
        grid-template-columns: 1fr;
    }
    
    .solution-detail-content,
    .solution-detail-content.reverse {
        flex-direction: column;
        text-align: center;
    }
    
    .promise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 60px 0 40px;
        margin-top: 60px;
    }
    
    .page-header h1 {
        font-size: 28px;
    }
    
    .page-header p {
        font-size: 15px;
    }
    
    .quick-grid,
    .process-grid,
    .culture-grid,
    .promise-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .quick-card,
    .solution-detail,
    .culture-item,
    .promise-item {
        padding: 24px 20px;
    }
    
    .quick-card i {
        font-size: 32px;
    }
    
    .solution-detail {
        padding: 32px 20px;
    }
    
    .solution-detail-icon {
        width: 80px;
        height: 80px;
    }
    
    .solution-detail-icon i {
        font-size: 36px;
    }
    
    .solution-detail-text h2 {
        font-size: 22px;
    }
    
    .about-intro-content {
        gap: 32px;
    }
    
    .about-intro-image .company-image {
        height: 240px;
    }
    
    .contact-page {
        padding: 60px 0;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .contact-info {
        padding: 32px 24px;
    }
    
    .contact-info h2 {
        font-size: 24px;
        text-align: center;
    }
    
    .contact-info > p {
        text-align: center;
    }
    
    .contact-form-wrapper {
        padding: 32px 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form input,
    .contact-form textarea {
        padding: 12px 14px;
        font-size: 14px;
    }
    
    .cta-content h2 {
        font-size: 24px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .partner-grid {
        gap: 32px;
    }
}

/* ==================== 产品详情页 ==================== */
.product-hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #f0f7ff 0%, #e6f4ff 100%);
}

.product-hero-content {
    display: flex;
    align-items: center;
    gap: 48px;
}

.product-icon-large {
    width: 160px;
    height: 160px;
    border-radius: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: linear-gradient(135deg, #07C160, #10B981);
}

.product-icon-large i {
    font-size: 72px;
    color: white;
}

.product-icon-large img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
}

.product-icon-large.blue { background: linear-gradient(135deg, #1890FF, #40A9FF); }
.product-icon-large.green { background: linear-gradient(135deg, #52C41A, #73D13D); }
.product-icon-large.orange { background: linear-gradient(135deg, #FA8C16, #FFAD0D); }
.product-icon-large.purple { background: linear-gradient(135deg, #722ED1, #9254DE); }
.product-icon-large.red { background: linear-gradient(135deg, #F5222D, #FF7875); }
.product-icon-large.cyan { background: linear-gradient(135deg, #13C2C2, #36CFC9); }

.product-info {
    flex: 1;
}

.product-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary-color);
    color: white;
    font-size: 12px;
    border-radius: 4px;
    margin-bottom: 16px;
}

.product-info h1 {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.product-info .product-desc {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.8;
}

.product-actions {
    display: flex;
    gap: 16px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(24, 144, 255, 0.3);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: var(--transition);
}

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

/* 产品特点 */
.product-features {
    padding: 80px 0;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 48px;
    color: var(--text-primary);
}

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

.feature-card {
    background: var(--bg-white);
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon i {
    font-size: 28px;
    color: white;
}

.feature-icon.blue { background: linear-gradient(135deg, #1890FF, #40A9FF); }
.feature-icon.green { background: linear-gradient(135deg, #52C41A, #73D13D); }
.feature-icon.orange { background: linear-gradient(135deg, #FA8C16, #FFAD0D); }
.feature-icon.purple { background: linear-gradient(135deg, #722ED1, #9254DE); }
.feature-icon.red { background: linear-gradient(135deg, #F5222D, #FF7875); }
.feature-icon.cyan { background: linear-gradient(135deg, #13C2C2, #36CFC9); }

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

.feature-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 产品优势 */
.product-benefits {
    padding: 80px 0;
    background: var(--bg-light);
}

.benefits-list {
    max-width: 800px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    gap: 24px;
    padding: 32px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.benefit-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.2;
    line-height: 1;
    flex-shrink: 0;
}

.benefit-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.benefit-content p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 适用场景 */
.product-scenarios {
    padding: 80px 0;
    background: var(--bg-white);
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.scenario-card {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
}

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

.scenario-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--primary-color), #40A9FF);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
}

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

.scenario-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .scenarios-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
}

/* 咨询区域 */
.consult-section {
    padding: 80px 0;
}

.consult-box {
    background: linear-gradient(135deg, #1890FF, #40A9FF);
    border-radius: var(--radius-lg);
    padding: 60px;
    text-align: center;
    color: white;
}

.consult-box h2 {
    font-size: 32px;
    margin-bottom: 12px;
}

.consult-box p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 32px;
}

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

.btn-consult-primary,
.btn-consult-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: var(--transition);
}

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

.btn-consult-primary:hover {
    background: #f5f5f5;
}

.btn-consult-secondary {
    background: rgba(255,255,255,0.15);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
}

.btn-consult-secondary:hover {
    background: rgba(255,255,255,0.25);
}

/* 响应式 */
@media (max-width: 768px) {
    .product-hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .product-icon-large {
        width: 120px;
        height: 120px;
    }
    
    .product-icon-large i {
        font-size: 48px;
    }
    
    .product-info h1 {
        font-size: 28px;
    }
    
    .product-actions {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .benefit-item {
        flex-direction: column;
        text-align: center;
    }
    
    .consult-buttons {
        flex-direction: column;
    }
    
    .category-grid {
        grid-template-columns: 1fr;
    }
}

/* ==================== 产品分类选择页 ==================== */
.category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: 40px;
}

.category-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.category-header {
    padding: 32px;
    color: white;
    display: flex;
    align-items: center;
    gap: 16px;
}

.category-header.blue {
    background: linear-gradient(135deg, #1890FF, #40A9FF);
}

.category-header.cyan {
    background: linear-gradient(135deg, #13C2C2, #36CFC9);
}

.category-header i {
    font-size: 48px;
}

/* 企业微信分类 logo 样式 */
.wecom-category-logo {
    width: 48px;
    height: 48px;
    object-fit: contain;
    filter: brightness(0) invert(1); /* 将深色logo转为白色 */
}

.category-header h2 {
    font-size: 28px;
    font-weight: 700;
}

.category-products {
    padding: 16px 0;
}

.product-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.product-link:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.product-link i:first-child {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border-radius: 10px;
    font-size: 18px;
    color: var(--primary-color);
}

.product-link span {
    flex: 1;
    font-size: 16px;
    font-weight: 500;
}

.product-link i:last-child {
    color: var(--text-light);
    transition: transform 0.3s ease;
}

.product-link:hover i:last-child {
    transform: translateX(4px);
    color: var(--primary-color);
}

/* ==================== 客户Logo展示区（旋转展示） ==================== */
.client-logo-showcase {
    position: relative;
    padding: 80px 0;
    background: linear-gradient(135deg, #0a0e1a 0%, #0d1117 40%, #161b22 100%);
    overflow: hidden;
    min-height: 400px;
}

/* 背景光效 */
.client-logo-bg-effects {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: 0;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: orbFloat 8s ease-in-out infinite;
}

.glow-orb-1 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(24,144,255,0.6), transparent 70%);
    top: -100px; left: -100px;
    animation-delay: 0s;
}

.glow-orb-2 {
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(7,193,96,0.5), transparent 70%);
    bottom: -50px; right: -50px;
    animation-delay: 2s;
}

.glow-orb-3 {
    width: 250px; height: 250px;
    background: radial-gradient(circle, rgba(114,46,209,0.4), transparent 70%);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 4s;
}

@keyframes orbFloat {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-30px) scale(1.1); }
}

/* 展示区标题 */
.showcase-header {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
    z-index: 1;
}

.showcase-title {
    font-size: 32px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.title-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px; height: 48px;
    background: linear-gradient(135deg, #1890ff, #096dd9);
    border-radius: 12px;
    margin-right: 12px;
    font-size: 20px;
    vertical-align: middle;
    box-shadow: 0 4px 20px rgba(24,144,255,0.4);
}

.showcase-subtitle {
    font-size: 16px;
    color: rgba(255,255,255,0.6);
    letter-spacing: 1px;
}

/* Logo 轮播容器 */
.logo-carousel-wrapper {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.logo-track {
    display: flex;
    align-items: center;
    gap: 32px;
    width: max-content;
    animation: scrollLeft 30s linear infinite;
    padding: 16px 0;
}

.logo-track:nth-child(2) {
    animation-name: scrollRight;
    animation-duration: 35s;
}

.logo-track:nth-child(3) {
    animation-duration: 25s;
}

@keyframes scrollLeft {
    0% { transform: translateX(0); }
    100% { transform: translateX(-100%); }
}

@keyframes scrollRight {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(0); }
}

.logo-track:hover {
    animation-play-state: paused;
}

/* Logo 卡片 */
.logo-item {
    flex-shrink: 0;
    width: 180px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.logo-item::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(24,144,255,0.15), transparent);
    transition: left 0.6s ease;
}

.logo-item:hover::before {
    left: 100%;
}

.logo-item:hover {
    transform: translateY(-4px) scale(1.05);
    border-color: rgba(24,144,255,0.5);
    box-shadow: 0 8px 32px rgba(24,144,255,0.3), inset 0 0 20px rgba(24,144,255,0.05);
    background: rgba(24,144,255,0.08);
}

.logo-item img {
    max-width: 120px;
    max-height: 48px;
    object-fit: contain;
    filter: grayscale(100%) brightness(2);
    transition: all 0.4s ease;
    opacity: 0.7;
}

.logo-item:hover img {
    filter: grayscale(0%) brightness(1);
    opacity: 1;
    transform: scale(1.1);
}

/* 粒子/网格背景装饰 */
.client-logo-showcase::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: 
        linear-gradient(rgba(24,144,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(24,144,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: 0;
    pointer-events: none;
}

/* 响应式 */
@media (max-width: 768px) {
    .client-logo-showcase { padding: 50px 0; }
    .showcase-title { font-size: 24px; }
    .logo-item { width: 140px; height: 64px; }
    .logo-item img { max-width: 90px; max-height: 36px; }
    .logo-track { gap: 16px; }
}