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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

/* 清除浮动 */
.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

/* 链接样式 */
a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

a:hover {
    color: #1a73e8;
}

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

ul, ol {
    list-style: none;
}

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

/* 顶部导航栏 */
.header {
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 24px;
    height: 24px;
    fill: #fff;
}

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

.logo-title {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
}

.logo-subtitle {
    font-size: 12px;
    color: #666;
}

.nav {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav a {
    color: #333;
    font-size: 15px;
    font-weight: 500;
    position: relative;
}

.nav a:hover,
.nav a.active {
    color: #1a73e8;
}

.nav a.active::after {
    content: "";
    position: absolute;
    bottom: -23px;
    left: 0;
    right: 0;
    height: 3px;
    background-color: #1a73e8;
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 8px;
}

.phone-icon {
    width: 20px;
    height: 20px;
    fill: #1a73e8;
}

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

.phone-number {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
}

.service-time {
    font-size: 12px;
    color: #666;
}

/* 页面横幅 */
.page-banner {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    padding: 60px 0;
    color: #fff;
    text-align: center;
}

.banner-title {
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 10px;
}

.banner-subtitle {
    font-size: 16px;
    opacity: 0.9;
}

/* 面包屑导航 */
.breadcrumb {
    padding: 20px 0;
    font-size: 14px;
    color: #666;
    display: flex;
    align-items: center;
}

.breadcrumb a {
    color: #666;
    display: flex;
    align-items: center;
}

.breadcrumb a:hover {
    color: #1a73e8;
}

.breadcrumb span {
    margin: 0 8px;
}

/* 底部 */
.footer {
    background-color: #0a1f44;
    color: #fff;
    padding: 50px 0 30px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-logo-icon svg {
    width: 20px;
    height: 20px;
    fill: #1a73e8;
}

.footer-logo-text {
    display: flex;
    flex-direction: column;
}

.footer-logo-title {
    font-size: 16px;
    font-weight: 600;
}

.footer-logo-subtitle {
    font-size: 12px;
    opacity: 0.8;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    opacity: 0.8;
}

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

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

.footer-links a {
    font-size: 14px;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
    color: #fff;
}

.footer-contact-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 15px;
}

.footer-contact-label {
    font-size: 14px;
    opacity: 0.8;
}

.footer-contact-value {
    font-size: 14px;
    font-weight: 500;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 25px;
    text-align: center;
    font-size: 13px;
    opacity: 0.7;
    max-width: 1200px;
    margin: 0 auto;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
}

.btn-primary {
    background-color: #1a73e8;
    color: #fff;
}

.btn-primary:hover {
    background-color: #0d47a1;
    color: #fff;
}

.btn-outline {
    background-color: transparent;
    color: #1a73e8;
    border: 1px solid #1a73e8;
}

.btn-outline:hover {
    background-color: #1a73e8;
    color: #fff;
}

/* 卡片样式 */
.card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    padding: 30px;
    transition: box-shadow 0.3s;
}

.card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}

/* 图标 */
.icon {
    width: 24px;
    height: 24px;
    display: inline-block;
}

.icon-large {
    width: 48px;
    height: 48px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
        height: auto;
        padding: 15px 20px;
    }

    .nav {
        width: 100%;
        justify-content: center;
        gap: 20px;
        margin-top: 15px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .banner-title {
        font-size: 28px;
    }
}