/* 瑞柏福企业官网样式表 */

/* 全局变量 */
:root {
    --primary-color: #2c5aa0;
    --secondary-color: #00d4aa;
    --text-dark: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 4px 15px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

/* 加载动画 */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

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

.pulse-ring {
    display: inline-block;
    width: 60px;
    height: 60px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    margin: 0 10px;
    animation: pulse 1.5s ease-in-out infinite;
}

.pulse-ring:nth-child(2) { animation-delay: 0.3s; }
.pulse-ring:nth-child(3) { animation-delay: 0.6s; }

.loader-text {
    font-size: 32px;
    font-weight: 700;
    margin-top: 20px;
    letter-spacing: 2px;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.7; }
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo-text {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 5px;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
    border-radius: 2px;
}

/* 英雄区域 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(44,90,160,0.9), rgba(0,212,170,0.8));
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255,255,255,0.1) 2px, transparent 2px),
        radial-gradient(circle at 75% 75%, rgba(255,255,255,0.1) 2px, transparent 2px);
    background-size: 50px 50px;
    animation: float 20s linear infinite;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(255,255,255,0.1) 1px, transparent 1px),
        radial-gradient(circle at 80% 80%, rgba(255,255,255,0.1) 1px, transparent 1px);
    animation: particles 30s linear infinite;
}

@keyframes float {
    0% { transform: translateY(0) rotate(0deg); }
    100% { transform: translateY(-20px) rotate(360deg); }
}

@keyframes particles {
    0% { transform: translateY(0); }
    100% { transform: translateY(-100px); }
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
    z-index: 1;
}

.hero-title {
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 30px;
    line-height: 1.2;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 1s ease forwards;
}

.title-line:nth-child(2) {
    animation-delay: 0.3s;
}

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

.hero-subtitle {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0;
    line-height: 1.8;
    animation: fadeIn 1s ease 0.6s forwards;
}

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

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeIn 1s ease 0.9s forwards;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

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

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

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: white;
    font-size: 14px;
    gap: 8px;
}

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

/* 特色服务 */
.features {
    padding: 80px 0;
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: left 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.feature-card:hover::before {
    left: 0;
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 节标题样式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

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

/* 关于我们 */
.about {
    padding: 80px 0;
}

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

.about-info h3 {
    font-size: 28px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
}

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

.company-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

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

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
}

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

.image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 48px;
}

.image-placeholder i {
    margin-bottom: 20px;
}

/* 服务项目 */
.services {
    padding: 80px 0;
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.service-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.service-content {
    padding: 40px;
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    margin-bottom: 25px;
}

.service-content h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.service-content p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 20px;
}

.service-content ul {
    list-style: none;
}

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

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

/* 联系我们 */
.contact {
    padding: 80px 0;
}

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

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    flex-shrink: 0;
}

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

.contact-details p {
    color: var(--text-light);
}

.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 15px;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44,90,160,0.1);
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-section h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
}

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

.footer-section li {
    margin-bottom: 8px;
}

.footer-section a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-contact p {
    margin-bottom: 8px;
    color: #ccc;
}

.footer-contact i {
    margin-right: 10px;
    color: var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid #555;
    padding-top: 30px;
    text-align: center;
}

.footer-copyright {
    background-color: rgba(0, 0, 0, 0.1);
    padding: 15px 0;
    text-align: center;
    margin-top: 30px;
}

.footer-copyright p {
    margin: 0;
    color: #fff;
    font-size: 14px;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 50px;
        transition: left 0.3s ease;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .company-stats {
        justify-content: center;
    }
    
    .features-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .feature-card,
    .service-card {
        padding: 30px;
    }
    
    .company-stats {
        flex-direction: column;
        gap: 20px;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
}

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

/* 选择文本样式 */
::selection {
    background: var(--primary-color);
    color: white;
}

/* Logo 设计样式 */
.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    position: relative;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.logo-icon i {
    position: absolute;
    font-size: 18px;
    color: white;
    animation: logoFloat 3s ease-in-out infinite;
}

.logo-icon i:first-child {
    animation-delay: 0s;
}

.logo-icon i:last-child {
    animation-delay: 1.5s;
    opacity: 0;
}

@keyframes logoFloat {
    0%, 50% { 
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    25% {
        transform: translateY(-2px) scale(1.1);
    }
    75%, 100% {
        opacity: 0;
        transform: translateY(2px) scale(0.9);
    }
}

.logo-content {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.logo-subtitle {
    font-size: 12px;
    color: var(--secondary-color);
    font-weight: 500;
    margin-top: 2px;
}

/* 新的联系我们页面样式 */
.contact {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.contact-hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-align: center;
    padding: 80px 0 60px;
    position: relative;
    overflow: hidden;
}

.contact-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="1.5" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 15s linear infinite;
}

.contact-hero-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
}

.contact-hero-content p {
    font-size: 18px;
    opacity: 0.9;
}

.contact-main {
    padding: 60px 0;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.contact-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    font-size: 24px;
    color: white;
}

.card-content h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.card-content p {
    color: var(--text-light);
    margin-bottom: 8px;
    line-height: 1.6;
}

.phone-number {
    font-size: 20px !important;
    font-weight: 600 !important;
    color: var(--primary-color) !important;
}

.card-action {
    margin-top: 20px;
}

.action-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.contact-form-section {
    background: white;
    border-radius: 20px;
    padding: 50px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.form-header {
    text-align: center;
    margin-bottom: 40px;
}

.form-header h3 {
    font-size: 28px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 10px;
}

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

.modern-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    margin-bottom: 25px;
}

.modern-form .form-row.full-width {
    grid-template-columns: 1fr;
}

.input-group {
    position: relative;
}

.input-group i {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 16px;
    z-index: 2;
}

.input-group input,
.input-group select,
.input-group textarea {
    width: 100%;
    padding: 18px 20px 18px 50px;
    border: 2px solid #e9ecef;
    border-radius: 15px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.input-group input:focus,
.input-group select:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(44,90,160,0.1);
}

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

.form-submit {
    text-align: center;
    margin-top: 30px;
}

.submit-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 18px 40px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(44,90,160,0.3);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(44,90,160,0.4);
}

/* 新的页脚样式 */
.footer {
    position: relative;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    color: white;
}

.footer-wave {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    transform: rotate(180deg);
}

.footer-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 60px;
}

.footer-wave .shape-fill {
    fill: var(--bg-light);
}

.footer-content {
    padding: 60px 0 40px;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 2fr 1.5fr;
    gap: 60px;
    margin-bottom: 50px;
    align-items: start;
}

.footer-brand {
    max-width: 400px;
}

.footer-logo .logo-container {
    margin-bottom: 25px;
}

.footer-logo .logo-text {
    color: white;
    font-size: 28px;
}

.footer-logo .logo-subtitle {
    color: var(--secondary-color);
}

.footer-desc {
    color: #ccc;
    line-height: 1.6;
    margin-bottom: 25px;
    font-size: 14px;
}

.footer-social .social-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: white;
}

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

.social-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    font-size: 13px;
}

.social-link:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

.social-link.wechat:hover { background: rgba(7,193,96,0.2); }
.social-link.weibo:hover { background: rgba(230,22,45,0.2); }
.social-link.qq:hover { background: rgba(18,183,245,0.2); }

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

.nav-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 18px;
    color: white;
    position: relative;
    line-height: 1.4;
}

.nav-section h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--secondary-color);
}

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

.nav-section li {
    margin-bottom: 10px;
}

.nav-section a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
    font-size: 14px;
    line-height: 1.5;
    display: block;
}

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

.footer-contact h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
    position: relative;
    line-height: 1.4;
}

.footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--secondary-color);
}

.contact-line {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

.contact-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 14px;
}

.contact-text {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.contact-text .label {
    font-size: 12px;
    color: #999;
    margin-bottom: 3px;
    line-height: 1.3;
}

.contact-text .value {
    color: #ccc;
    line-height: 1.4;
    font-size: 13px;
    word-break: break-word;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 30px 0;
}

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

.copyright p {
    color: #999;
    margin-bottom: 5px;
}

.footer-links {
    display: flex;
    gap: 25px;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* 平板端适配 */
@media (max-width: 1024px) and (min-width: 769px) {
    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: 50px;
    }
    
    .footer-nav {
        grid-template-columns: repeat(3, 1fr);
        gap: 35px;
    }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .contact-cards {
        grid-template-columns: 1fr;
    }
    
    .modern-form .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form-section {
        padding: 30px;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        gap: 35px;
    }
    
    .footer-nav {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .social-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .footer-brand {
        text-align: center;
    }
    
    .contact-info {
        max-width: 280px;
        margin: 0 auto;
    }
}