/* ==================== 导航栏模块 ==================== */
.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: var(--shadow-sm);
    height: 64px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    margin-right: 60px;
}

.logo-img {
    height: 32px;
    width: auto;
}

.logo-slogan {
    font-size: 18px;
    color: #000000;
    margin-left: 12px;
    padding-left: 12px;
    border-left: 1px solid #ddd;
    white-space: nowrap;
    font-weight: 400;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
    flex: 1;
}

.nav-links > li > a {
    font-size: 14px;
    color: var(--text-dark);
    padding: 20px 0;
    transition: var(--transition);
    position: relative;
}

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

.nav-links > li > a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    border-radius: 2px 2px 0 0;
}

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

.nav-phone {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--text-dark);
}

.nav-phone-icon {
    width: 18px;
    height: 18px;
}

.nav-download-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    background: var(--primary);
    color: white;
    border-radius: 20px;
    font-size: 14px;
    transition: var(--transition);
}

.nav-download-btn:hover {
    background: var(--primary-dark);
}

.nav-download-icon {
    width: 20px;
    height: 20px;
}

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

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

/* 移动端菜单 */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    z-index: 2000;
    padding: 20px;
    overflow-y: auto;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.mobile-menu-close {
    font-size: 28px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-dark);
}

.mobile-nav-links > li {
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-links > li > a {
    display: block;
    padding: 16px 0;
    font-size: 16px;
    color: var(--text-dark);
}

.mobile-nav-phone {
    display: block;
    margin-top: 30px;
    padding: 14px;
    text-align: center;
    font-size: 16px;
    color: var(--primary);
    border: 1px solid var(--primary);
    border-radius: 4px;
}

.mobile-nav-cta {
    display: block;
    margin-top: 12px;
    padding: 14px;
    background: var(--primary);
    color: white;
    text-align: center;
    border-radius: 4px;
    font-size: 16px;
}

/* 悬浮侧边栏 */
.float-sidebar {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
}

.float-sidebar-top {
    position: relative;
    cursor: pointer;
}

.float-sidebar-img {
    width: 80px;
    height: auto;
    display: block;
    border-radius: 40px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.float-sidebar-img:hover {
    box-shadow: var(--shadow-lg);
    transform: scale(1.03);
}

/* 悬浮侧边栏 - 客服二维码弹出 */
.float-sidebar-qrcode {
    display: none;
    position: absolute;
    right: calc(100% + 16px);
    top: 50%;
    transform: translateY(-50%);
    background: white;
    border-radius: 10px;
    padding: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    text-align: center;
    white-space: nowrap;
}

.float-sidebar-qrcode::after {
    content: '';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 8px solid transparent;
    border-left-color: white;
}

.float-sidebar-qrcode img {
    width: 220px;
    max-width: none;
    height: auto;
    display: block;
    border-radius: 6px;
}

.float-sidebar-qrcode span {
    display: block;
    margin-top: 8px;
    font-size: 13px;
    color: #666;
}

.float-sidebar-top:hover .float-sidebar-qrcode {
    display: block;
}