/* 基础变量 */
:root {
    --color-primary: #2563eb;
    --color-secondary: #3b82f6;
    --color-dark: #1e293b;
    --color-light: #f8fafc;
    --color-accent: #0ea5e9;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;
    --font-main: "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础样式 */
body {
    font-family: var(--font-main);
    line-height: 1.6;
    color: #333;
    background-color: var(--color-light);
    padding-top: 80px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
}

/* 导航栏样式 */
.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 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 22px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    align-items: center;
    text-decoration: none;
}

.logo-img {
    display: block;
    margin: 0 auto;
    width: 40px;
}

.logo h1 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-dark);
    margin: 0;
    transition: color 0.3s ease;
}

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

.nav-links a {
    color: var(--color-dark);
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-links a:hover {
    color: var(--color-primary);
}

.nav-links a:hover::after {
    width: 80%;
}

.mobile-menu-btn {
    display: none;
}

/* 英雄区域样式 */
.hero {
    position: relative;
    height: 600px;
    /* margin-bottom: 36px; */
    overflow: hidden;
}

.hero-swiper {
    width: 100%;
    height: 100%;
}

.hero .swiper-slide {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
}

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

.hero h2 {
    font-size: 48px;
    margin-bottom: 24px;
    font-weight: 700;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 20px;
    max-width: 576px;
    margin: 0 auto 40px;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.hero .swiper-button-next,
.hero .swiper-button-prev {
    color: white;
    background: rgba(255, 255, 255, 0.2);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
}

.hero .swiper-button-next:hover,
.hero .swiper-button-prev:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.hero .swiper-button-next::after,
.hero .swiper-button-prev::after {
    font-size: 20px;
}

.hero .swiper-pagination {
    bottom: 30px !important;
}

.hero .swiper-pagination-bullet {
    width: 10px;
    height: 10px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 1;
    transition: all 0.3s ease;
    margin: 0 8px !important;
}

.hero .swiper-pagination-bullet-active {
    background: white;
    transform: scale(1.2);
}

.hero-btn {
    display: inline-block;
    background: white;
    color: var(--color-primary);
    padding: 16px 40px;
    border-radius: 9999px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.hero-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    background: var(--color-primary);
    color: white;
}

/* 章节通用样式 */
.section {
    padding: 96px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 64px;
}

.section-title h2 {
    font-size: 40px;
    margin-bottom: 16px;
    color: var(--color-dark);
}

.section-title .divider {
    width: 96px;
    height: 4px;
    background: var(--color-primary);
    margin: 0 auto;
}

/* 关于我们样式 */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-content {
    display: grid;
    gap: 32px;
}

.about-content h3 {
    font-size: 32px;
    color: var(--color-dark);
    margin-bottom: 16px;
}

.about-content p {
    font-size: 18px;
    color: #666;
    line-height: 1.8;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.stat-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.1);
}

.stat-card .number {
    color: var(--color-primary);
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 8px;
}

/* 业务范围样式 */
.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 48px;
}

.business-card {
    background: white;
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.business-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.business-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

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

.business-icon {
    width: 80px;
    height: 80px;
    background: var(--color-gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    transition: all 0.3s ease;
}

.business-card:hover .business-icon {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    transform: scale(1.1);
}

.business-icon i {
    color: var(--color-primary);
    font-size: 32px;
    transition: color 0.3s ease;
}

.business-card:hover .business-icon i {
    color: white;
}

.business-card h3 {
    font-size: 24px;
    color: var(--color-dark);
    margin-bottom: 16px;
}

.business-card p {
    color: var(--color-gray-600);
    line-height: 1.8;
    margin-bottom: 24px;
}

.business-features {
    text-align: left;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-gray-200);
}

.business-features li {
    color: var(--color-gray-600);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.business-features li::before {
    content: '✓';
    color: var(--color-primary);
    font-weight: bold;
}

/* 联系我们样式 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-top: 32px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.contact-info {
    display: grid;
    gap: 32px;
    grid-column: 1 / -1;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 32px;
    background: white;
    border-radius: 24px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.1);
}

.contact-item:hover::before {
    transform: scaleY(1);
}

.contact-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.contact-item:hover .contact-icon {
    transform: scale(1.1);
}

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

.contact-item p {
    color: var(--color-gray-600);
    line-height: 1.6;
}

.contact-item .text-sm {
    font-size: 14px;
    color: var(--color-gray-500);
    margin-top: 4px;
}

.contact-form {
    background: white;
    padding: 48px;
    border-radius: 24px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    font-size: 28px;
    color: var(--color-dark);
    margin-bottom: 16px;
}

.form-desc {
    color: var(--color-gray-600);
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--color-dark);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--color-gray-200);
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: var(--color-gray-100);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236B7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 24px;
    padding-right: 40px;
}

.btn {
    display: inline-block;
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.1);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(37, 99, 235, 0.2);
}

/* 页脚样式 */
.footer {
    background: var(--color-gray-900);
    color: white;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.footer-main {
    padding: 64px 0 32px;
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo .logo-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
}

.footer-logo h3 {
    font-size: 18px;
    color: white;
    margin: 0;
}

.footer-desc {
    color: var(--color-gray-400);
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 16px;
}

.footer-social {
    display: flex;
    gap: 16px;
    margin-top: 8px;
}

.social-link {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

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

.footer-col h4 {
    font-size: 20px;
    color: white;
    margin-bottom: 16px;
    position: relative;
    padding-bottom: 12px;
    font-weight: 600;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.3s ease;
}

.footer-col:hover h4::after {
    width: 60px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--color-gray-400);
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    position: relative;
    padding-left: 0;
}

.footer-links a::before {
    content: '→';
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-accent);
    padding-left: 16px;
}

.footer-links a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact .contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-gray-300);
    font-size: 15px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 6px;
}

.footer-contact .contact-item i {
    color: var(--color-primary);
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.footer-contact .contact-item span {
    flex: 1;
}

.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid var(--color-gray-800);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-copyright {
    color: var(--color-gray-400);
    font-size: 14px;
}

.footer-icp {
    display: flex;
    align-items: center;
    gap: 24px;
}

.footer-icp a {
    color: var(--color-gray-400);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    font-size: 13px;
}

.footer-icp a:hover {
    color: var(--color-gray-300);
}

.footer-icp .icp-icon,
.footer-icp .gongan-icon {
    height: 16px;
    width: auto;
}

/* 动画效果 */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-in-out, transform 0.8s ease-in-out;
}

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

/* 图片响应式优化 */
img {
    max-width: 100%;
    height: auto;
}

.w-full {
    width: 100%;
}

/* 业务领域样式 */
.business-areas {
    padding: 40px 0;
    background: #f8f9fa;
}

.business-areas .section-title {
    margin-bottom: 40px;
}

.business-areas .section-title h2 {
    font-size: 36px;
    color: var(--color-dark);
    margin-bottom: 16px;
}

.business-areas .section-title .divider {
    width: 80px;
    height: 3px;
    background: var(--color-primary);
    margin: 0 auto;
}

.business-areas-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.business-area-item {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.business-area-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.business-area-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
}

.business-area-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0) 0%, rgba(0,0,0,0.1) 100%);
}

.business-area-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.business-area-item:hover .business-area-image img {
    transform: scale(1.05);
}

.business-area-content {
    padding: 24px;
}

.business-area-content h3 {
    font-size: 22px;
    color: var(--color-dark);
    margin-bottom: 12px;
    font-weight: 600;
}

.business-area-content p {
    font-size: 15px;
    color: var(--color-gray-600);
    line-height: 1.6;
    margin: 0;
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .business-areas-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .business-area-image {
        height: 200px;
    }
}

@media (max-width: 768px) {
    .business-areas {
        padding: 30px 0;
    }
    
    .business-areas .section-title h2 {
        font-size: 28px;
    }
    
    .business-areas-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .business-area-image {
        height: 180px;
    }
    
    .business-area-content {
        padding: 20px;
    }
    
    .business-area-content h3 {
        font-size: 20px;
    }
}