/* 通用样式 - 顺丰圆角风格 */

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0066b3;
    --primary-dark: #004a82;
    --primary-light: #e6f2ff;
    --secondary: #00a3e0;
    --text-dark: #333333;
    --text-light: #666666;
    --text-muted: #999999;
    --bg-light: #f8fafc;
    --border-color: #e8e8e8;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 102, 179, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background: #fff;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

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

/* 导航栏 */
.navbar {
    background: #fff;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

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

.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.logo-icon {
    font-size: 2rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-menu > li > a {
    display: block;
    padding: 10px 18px;
    color: var(--text-dark);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-menu > li > a:hover,
.nav-menu > li > a.active {
    color: var(--primary);
    background: var(--primary-light);
}

/* 子菜单 */
.has-submenu {
    position: relative;
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 160px;
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
}

.has-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu li a {
    display: block;
    padding: 10px 16px;
    color: var(--text-dark);
    font-size: 0.9rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.submenu li a:hover {
    background: var(--primary-light);
    color: var(--primary);
}

/* 移动端菜单按钮 */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

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

.btn-outline-light {
    background: transparent;
    color: #fff;
    border-color: #fff;
}

.btn-outline-light:hover {
    background: #fff;
    color: var(--primary);
}

/* 区块样式 */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.section-header p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* CTA区块 */
.cta-box {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-xl);
    padding: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    color: #fff;
}

.cta-content h2 {
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.cta-content p {
    opacity: 0.9;
    font-size: 1.1rem;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    flex-shrink: 0;
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: #fff;
    padding: 60px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 120px repeat(4, 1fr);
    gap: 48px;
    margin-bottom: 40px;
}

.footer-qr {
    width: 100%;
    max-width: 120px;
    height: auto;
    border-radius: 8px;
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #fff;
}

.footer-col p,
.footer-col li {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    line-height: 2;
}

.footer-col ul li {
    transition: var(--transition);
}

.footer-col ul li:hover {
    color: #fff;
}

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

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

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

.footer-bottom a:hover {
    color: #fff;
}

/* 响应式 */
@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 100px repeat(2, 1fr);
    }
    .footer-qr {
        max-width: 100px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px;
        box-shadow: var(--shadow-lg);
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        max-height: calc(100vh - 70px);
        opacity: 1;
        overflow-y: auto;
    }
    
    .nav-menu > li {
        width: 100%;
    }
    
    .nav-menu > li > a {
        padding: 12px 16px;
    }
    
    .submenu {
        position: static;
        box-shadow: none;
        padding-left: 16px;
        opacity: 1;
        visibility: visible;
        transform: none;
        max-height: 0;
        overflow: hidden;
    }
    
    .has-submenu:hover .submenu {
        max-height: 200px;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-qr {
        max-width: 150px;
        margin: 0 auto;
    }
    
    .cta-box {
        flex-direction: column;
        text-align: center;
        padding: 32px;
    }
    
    .section {
        padding: 48px 0;
    }
}