/* ============================================
       首页头部样式
       ============================================ */
    
    /* 基础工具类 */
    .fl { float: left; }
    .fr { float: right; }
    .cl_b { clear: both; }

/* 头部容器 */
.header {
    width: 100%;
    background: #ffffff;
    position: relative;
    overflow: visible;
}


.header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(30, 136, 229, 0.15), rgba(244, 67, 54, 0.15), transparent);
}

/* 顶部信息栏 */
.header .topbox {
    background: rgba(255, 255, 255, 0.98);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    backdrop-filter: blur(30px) saturate(180%);

}

.header .topbox .wrap {
    width: 1280px;
    margin: 0 auto;
    position: sticky;
    top: 0;
    z-index: 999;
    background: rgba(255, 255, 255, 0.98);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    backdrop-filter: blur(30px) saturate(180%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(0);
    opacity: 1;
}

/* 隐藏状态 - 只隐藏 .wrap */
.header .topbox .wrap.hidden {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
}

.header .topbox .wrap .top {
    width: 100%;
    height: 42px;
    line-height: 42px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.top_left {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 13px;
}

.top_info_item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #666;
    transition: all 0.3s ease;
}

.top_info_item:hover {
    color: #1e88e5;
}

.top_info_icon {
    font-size: 14px;
    line-height: 1;
}

.top_info_text {
    font-size: 13px;
}

.top_info_text strong {
    color: #1e88e5;
    font-weight: 600;
    margin: 0 4px;
}

.top_right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.top_link {
    font-size: 12px;
    color: #666;
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 4px 12px;
    border-radius: 12px;
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 4px;
    position: relative;
}

.top_link:hover {
    color: #1e88e5;
    background: rgba(30, 136, 229, 0.08);
}

.top_link.addSite {
    color: #f44336;
}

.top_link.addSite:hover {
    color: #fff;
    background: linear-gradient(135deg, #f44336 0%, #ff6b6b 100%);
    box-shadow: 0 2px 8px rgba(244, 67, 54, 0.3);
}

.top_link.online_service {
    color: #fff;
    background: linear-gradient(135deg, #1e88e5 0%, #42a5f5 100%);
    padding: 6px 16px;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(30, 136, 229, 0.3);
}

.top_link.online_service:hover {
    background: linear-gradient(135deg, #1565c0 0%, #1e88e5 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(30, 136, 229, 0.4);
}

.top_link.online_service::before {
    content: '💬';
    font-size: 14px;
    line-height: 1;
}

.top_divider {
    width: 1px;
    height: 16px;
    background: rgba(0, 0, 0, 0.1);
    margin: 0 4px;
}

/* 主导航区域 */
.navdl {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 1280px;
    padding: 30px 0;
    margin: 0 auto;
    min-height: 120px;
    z-index: 1;
    background: transparent;
}

.h_log {
    max-width: 360px;
    padding: 0;
    margin: 0;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.06));
}

.h_log:hover {
    transform: translateY(-2px);
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.1));
}

/* 搜索框 */
.navdl .ser {
    position: relative;
    width: 520px;
    height: 56px;
    margin: 0;
    z-index: 1;
}

.navdl .ser form {
    display: flex;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border: 1.5px solid rgba(0, 0, 0, 0.08);
    border-radius: 60px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.navdl .ser form:hover {
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.navdl .ser:focus-within form {
    border-color: #1e88e5;
    box-shadow: 0 6px 30px rgba(30, 136, 229, 0.2), 0 0 0 4px rgba(30, 136, 229, 0.05);
}

.navdl .ser input {
    flex: 1;
    padding: 0 28px;
    height: 54px;
    border: none;
    outline: none;
    font-size: 15px;
    background: transparent;
    color: #333;
    font-weight: 400;
}

.navdl .ser input::placeholder {
    color: #999;
}

.navdl .ser a {
    width: 80px;
    height: 54px;
    background: linear-gradient(135deg, #1e88e5 0%, #1565c0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 20px;
    position: relative;
    overflow: hidden;
}

.navdl .ser a::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.navdl .ser a:hover::before {
    width: 400px;
    height: 400px;
}

.navdl .ser a:hover {
    background: linear-gradient(135deg, #1565c0 0%, #1e88e5 100%);
}

.navdl .ser a i {
    position: relative;
    z-index: 1;
}

/* 电话信息 */
.top_tel {
    color: #f44336;
    font-size: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(244, 67, 54, 0.06);
    padding: 12px 28px;
    border-radius: 50px;
    border: 1.5px solid rgba(244, 67, 54, 0.15);
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(244, 67, 54, 0.1);
}

.top_tel:hover {
    background: rgba(244, 67, 54, 0.1);
    border-color: rgba(244, 67, 54, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(244, 67, 54, 0.2);
}

.top_tel::before {
    content: '📞';
    font-size: 18px;
}

/* 导航菜单 - 高级精美设计 */
.nav_box {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(250, 251, 252, 0.98) 100%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    backdrop-filter: blur(30px) saturate(180%);
    overflow: visible;
    width: 100%;
    z-index: 5;
    position: relative;
    border-top: 1px solid rgba(0, 0, 0, 0.04);
    padding: 0;
    box-shadow: 0 -2px 20px rgba(0, 0, 0, 0.03);
}

.nav_box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(30, 136, 229, 0.1), rgba(244, 67, 54, 0.1), transparent);
}

.nav_box .topcenter {
    background: transparent;
    padding: 0;
    position: relative;
}

.nav1 {
    overflow: visible;
    max-width: 1280px;
    margin: 0 auto;
    height: auto;
    padding: 0;
    position: relative;
}

.nav1 ul {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: nowrap;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 8px;
}

.nav1 li {
    flex: 0 0 auto;
    text-align: center;
    position: relative;
    box-sizing: border-box;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav1 li>a {
    height: 76px;
    line-height: 76px;
    font-size: 15px;
    color: #333;
    padding: 0 40px;
    display: inline-block;
    text-align: center;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 500;
    position: relative;
    z-index: 1;
    border-radius: 12px;
    background: transparent;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    letter-spacing: 0.3px;
    margin: 0 4px;
}

/* 背景光效 */
.nav1 li>a::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(30, 136, 229, 0.1) 0%, transparent 70%);
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1), height 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

/* 下划线动画 - 增强版 */
.nav1 li>a::before {
    content: '';
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #1e88e5 0%, #f44336 100%);
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
    box-shadow: 0 2px 8px rgba(30, 136, 229, 0.4);
}

/* 蓝色导航项 */
.nav1 li:nth-child(odd)>a {
    color: #1e88e5;
}

.nav1 li:nth-child(odd)>a::before {
    background: linear-gradient(90deg, #1e88e5 0%, rgba(30, 136, 229, 0.8) 100%);
    box-shadow: 0 2px 8px rgba(30, 136, 229, 0.4);
}

.nav1 li:nth-child(odd)>a::after {
    background: radial-gradient(circle, rgba(30, 136, 229, 0.12) 0%, transparent 70%);
}

/* 红色导航项 */
.nav1 li:nth-child(even)>a {
    color: #f44336;
}

.nav1 li:nth-child(even)>a::before {
    background: linear-gradient(90deg, #f44336 0%, rgba(244, 67, 54, 0.8) 100%);
    box-shadow: 0 2px 8px rgba(244, 67, 54, 0.4);
}

.nav1 li:nth-child(even)>a::after {
    background: radial-gradient(circle, rgba(244, 67, 54, 0.12) 0%, transparent 70%);
}

/* 悬停效果 - 增强版 */
.nav1 li:hover>a {
    color: #000;
    font-weight: 600;
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.nav1 li:hover>a::before {
    width: 75%;
    height: 3px;
}

.nav1 li:hover>a::after {
    width: 120px;
    height: 120px;
}

/* 当前激活项 - 精美样式 */
.nav1 li.cur>a {
    font-weight: 700;
    color: #000;
    position: relative;
    background: linear-gradient(180deg, rgba(30, 136, 229, 0.08) 0%, rgba(244, 67, 54, 0.08) 50%, transparent 100%);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.nav1 li:nth-child(odd).cur>a {
    color: #1e88e5;
    background: linear-gradient(180deg, rgba(30, 136, 229, 0.12) 0%, rgba(30, 136, 229, 0.06) 50%, transparent 100%);
    box-shadow: 0 6px 25px rgba(30, 136, 229, 0.2);
}

.nav1 li:nth-child(odd).cur>a::before {
    width: 90%;
    height: 3px;
    background: #1e88e5;
    box-shadow: 0 4px 15px rgba(30, 136, 229, 0.6);
    bottom: 12px;
}

.nav1 li:nth-child(odd).cur>a::after {
    width: 140px;
    height: 140px;
    background: radial-gradient(circle, rgba(30, 136, 229, 0.15) 0%, transparent 70%);
}

.nav1 li:nth-child(even).cur>a {
    color: #f44336;
    background: linear-gradient(180deg, rgba(244, 67, 54, 0.12) 0%, rgba(244, 67, 54, 0.06) 50%, transparent 100%);
    box-shadow: 0 6px 25px rgba(244, 67, 54, 0.2);
}

.nav1 li:nth-child(even).cur>a::before {
    width: 90%;
    height: 3px;
    background: #f44336;
    box-shadow: 0 4px 15px rgba(244, 67, 54, 0.6);
    bottom: 12px;
}

.nav1 li:nth-child(even).cur>a::after {
    width: 140px;
    height: 140px;
    background: radial-gradient(circle, rgba(244, 67, 54, 0.15) 0%, transparent 70%);
}

/* 导航项分隔符 - 精美设计 */
.nav1 li:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -4px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 32px;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.08) 50%, transparent 100%);
    opacity: 0.5;
}

/* 响应式优化 */
/* 响应式设计 */
@media (max-width: 1200px) {
    .top_left {
        gap: 16px;
    }
    
    .top_info_item {
        font-size: 12px;
    }
    
    .top_info_text {
        display: none;
    }
    
    .top_info_text strong {
        display: inline;
    }
}

@media (max-width: 768px) {
    .header .topbox .wrap .top {
        flex-direction: column;
        height: auto;
        padding: 8px 20px;
        gap: 8px;
    }
    
    .top_left {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .top_right {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .top_divider {
        display: none;
    }
}

@media (max-width: 1400px) {
    .nav1 li>a {
        padding: 0 28px;
        font-size: 14px;
    }
}