/* ========== 汶龙生物主题样式 ========== */
/* 品牌色：活力橙 #E05A2A */

:root {
    --brand-orange: #E05A2A;
    --brand-orange-light: #F57C4A;
    --brand-orange-soft: #FFF2EB;
    --brand-gray-deep: #2C3E50;
    --gray-bg: #F8F9FC;
    --gray-border: #E9EDF2;
    --text-dark: #1E2F3A;
    --text-soft: #5B6F82;
    --pure-white: #FFFFFF;
    --shadow-sm: 0 8px 20px rgba(0,0,0,0.03), 0 2px 6px rgba(0,0,0,0.05);
    --shadow-md: 0 20px 30px -12px rgba(0,0,0,0.08);
    font-size: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body ,header {
    font-family:  'Inter', 'Roboto','微软雅黑', sans-serif;/*'Inter', 'Roboto',*/
    background-color: #FFFFFF;
    color: #1E2F3A;
    line-height: 1.45;
}
li,ul {
    list-style-type: none;
  }


/* 顶部宣传文字栏 - 与导航栏风格一致 */
.top_menu {
	font-size: 12px;
	width: 100%;
	height: 34px;
	background-color: #fdfdfd;
	color: #666666;
	border-bottom: 1px solid #f1f1f1;
}
.top-promo-bar {
    background: #FFFFFF;           /* 白色背景 */
    border-bottom: 1px solid #E9EDF2;  /* 浅灰色分割线 */
    padding: 20px 0;
}

.top-promo-text {
    color: #5B6F82;                /* 深灰色字体，与导航栏文字颜色一致 */
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.5px;
    text-align: left;
}

/* 可选：加一个浅色渐变背景 */
.top-promo-bar {
    background: linear-gradient(90deg, #F8F9FC 0%, #FFFFFF 50%, #F8F9FC 100%);
}

/* ============================================================= */
.container { max-width: 1320px; margin: 0 auto; padding: 0 32px; }
.container-logo{
    display: flex;
    justify-content: space-between;  /* 两端对齐，logo靠左，图标靠右 */
    align-items: center;              /* 垂直居中对齐 */
    width: 100%;
    padding-left: 0;
    padding-right: 0;
}

/* ========== 导航栏 ========== */
.navbar {
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(2px);
    margin: 0px;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--gray-border);
}

.nav-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    /* gap: 16px; */
    padding: 12px 0;
}

.logo-area { 
    /* //align-items: left; */
    display: flex;  gap: 12px; 
}
.logo-img-wrapper { 
    /* width: 48px; 
    height: 48px;  */
    /* background: linear-gradient(145deg, #FFF0E8, #FDE5DB);  */
    border-radius: 14px; 
    display: flex; 
    align-items: left; 
    justify-content: center; 
}

.logo-img { width: 100%; height: 100%; object-fit: contain; }
.brand-cn { font-size: 1.5rem; font-weight: 700; color: var(--brand-orange); line-height: 1.2; }
.brand-en { font-size: 0.65rem; letter-spacing: 2px; color: var(--brand-gray-deep); }



/* .search-area {
    display: flex;
    align-items: center;
    background: var(--gray-bg);
    border-radius: 48px;
    border: 1px solid var(--gray-border);
    overflow: hidden;
} */

/* ============================搜索框==================================== */
/* .search-input { border: none; padding: 10px 16px; width: 220px; background: transparent; outline: none; }
.search-btn { background: transparent; border: none; padding: 0 16px; cursor: pointer; color: var(--brand-orange); } */

/* 搜索区域容器 - 关键：flex 布局 */
.search-area {
    display: flex;
    align-items: center;
    background: #F8F9FC;
    border-radius: 48px;
    border: 1px solid #E9EDF2;
    overflow: hidden;
    min-width: 280px;
}

/* 表单也需要 flex 布局 */
.search-area form {
    display: flex;
    align-items: center;
    width: 100%;
    margin: 0;
    padding: 0;
}

/* 输入框 - 自适应宽度 */
.search-input {
    flex: 1;
    min-width: 180px;
    padding: 10px 12px;
    border: none;
    font-size: 14px;
    background: transparent;
    outline: none;
    font-family: inherit;
    /* 支持水平滚动查看长文字 */
    overflow-x: auto;
    white-space: nowrap;
}

/* 自定义滚动条（可选） */
.search-input::-webkit-scrollbar {
    height: 4px;
}

.search-input::-webkit-scrollbar-track {
    background: #e0e0e0;
    border-radius: 4px;
}

.search-input::-webkit-scrollbar-thumb {
    background: var(--brand-orange);
    border-radius: 4px;
}

/* 搜索按钮 - 固定宽度，不被压缩 */
.search-btn {
    flex-shrink: 0;
    background: transparent;
    border: none;
    padding: 0 16px;
    cursor: pointer;
    color: var(--brand-orange);
    font-size: 16px;
}

.search-btn:hover {
    color: #C94A1E;
}



/* ========== 首页样式 ========== */
.hero-section {
    background: #FEFAF5;
    border-radius: 48px;
    padding: 60px 48px;
    margin: 40px 0;
    text-align: center;
}
.hero-section h1 { font-size: 2.8rem; color: var(--brand-orange); }
.highlight { color: var(--brand-gray-deep); }

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 28px;
    margin: 48px 0;
}
.advantage-card {
    background: white;
    border-radius: 28px;
    padding: 28px 16px;
    text-align: center;
    border: 1px solid var(--gray-border);
}
.advantage-card i { font-size: 48px; color: var(--brand-orange); }
.advantage-card h3 { margin: 16px 0; }

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--brand-gray-deep);
    position: relative;
}
.section-title:after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    width: 56px;
    height: 3px;
    background: var(--brand-orange);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 28px;
    margin: 32px 0;
}
.product-card {
    background: white;
    border-radius: 24px;
    padding: 20px;
    border: 1px solid var(--gray-border);
    transition: 0.2s;
}
.product-card:hover { box-shadow: var(--shadow-md); }
.product-icon { font-size: 36px; color: var(--brand-orange); margin-bottom: 12px; }
.product-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.product-code { color: var(--brand-orange); font-size: 0.8rem; }
.product-price { color: var(--brand-orange); font-weight: bold; margin: 10px 0; }

.btn-primary-orange {
    background: var(--brand-orange);
    color: white;
    border: none;
    padding: 10px 28px;
    border-radius: 40px;
    font-weight: 600;
    cursor: pointer;
    display: inline-block;
    text-decoration: none;
}
.btn-outline-orange {
    background: transparent;
    border: 1.5px solid var(--brand-orange);
    color: var(--brand-orange);
    padding: 6px 20px;
    border-radius: 40px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}
.btn-outline-orange:hover { background: var(--brand-orange); color: white; }

/* ========== 列表页 ========== */
.list-layout { display: flex; gap: 32px; margin: 32px 0; flex-wrap: wrap; }


.accordion-item { border-bottom: 1px solid var(--gray-border); }
/* .accordion-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 12px;
    font-weight: 700;
    cursor: pointer;
    border-left: 3px solid transparent;
} */
.accordion-header:hover, .accordion-item.expanded .accordion-header {
    background: var(--brand-orange-soft);
    border-left: 3px solid var(--brand-orange);
    color: var(--brand-orange);
}
.accordion-header .toggle-icon { transition: transform 0.3s; }
.accordion-item.expanded .accordion-header .toggle-icon { transform: rotate(90deg); }
/* .accordion-content { display: none; padding: 8px 0 16px 0; } */
/* .accordion-item.expanded .accordion-content { display: block; } */

.sub-item {
    display: block;
    padding: 12px 12px 12px 44px;
    cursor: pointer;
    color: var(--text-soft);
    position: relative;
}
.sub-item::before { content: "—"; position: absolute; left: 24px; color: var(--brand-orange); }
.sub-item:hover { color: var(--text-dark); background: #F9F9FB; }
.sub-item.active { color: var(--brand-orange); font-weight: 600; }
.sub-item.active::before { content: "■"; font-size: 9px; top: 13px; }

.product-area { flex: 3.2; }
.filter-tags { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }
.filter-badge {
    background: var(--pure-white);
    border: 1px solid var(--gray-border);
    border-radius: 40px;
    padding: 6px 16px;
    font-size: 0.8rem;
    cursor: pointer;
}
.filter-badge:hover, .filter-badge.active { background: var(--brand-orange); color: white; }

.product-list-mode .product-row {
    display: flex;
    background: white;
    border: 1px solid var(--gray-border);
    border-radius: 24px;
    padding: 20px;
    margin-bottom: 20px;
    align-items: center;
    gap: 20px;
    position: relative;
}
.product-img-small { width: 80px; height: 80px; background: #F9F9FB; border-radius: 20px; display: flex; align-items: center; justify-content: center; font-size: 36px; color: var(--brand-orange); }
.product-info-mid { flex: 3; }
.product-name { font-weight: 700; font-size: 1.1rem; }
.product-catno { color: var(--brand-orange); font-weight: 600; font-size: 0.85rem; }
.product-tag { background: var(--brand-orange-soft); padding: 2px 8px; border-radius: 20px; font-size: 0.7rem; }
.product-actions { text-align: right; min-width: 160px; }
.price { font-weight: 700; color: var(--brand-orange); margin-bottom: 8px; }

/* =================================================================================================== */
.pagination { display: flex; justify-content: center; gap: 12px; margin: 32px 0; }

.pagination.justify-content-center {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin: 40px 0;
    padding: 0;
    list-style: none;
    flex-wrap: wrap;
}

.pagination .page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    height: 42px;
    padding: 0 14px;
    background: #ffffff;
    border: none;
    color: #2c3e50;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.25s;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.pagination .page-item.active .page-link {
    background: #ff6b35;
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.25);
}

.pagination .page-item:not(.active):not(.disabled) .page-link:hover {
    background: #ff6b35;
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.2);
}

.pagination .page-item.disabled .page-link {
    background: #f7fafc;
    color: #a0aec0;
    box-shadow: none;
}

.pagination .jumpto {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-left: 15px;
    background: #f7fafc;
    padding: 4px 16px;
    border-radius: 50px;
}

.pagination .page_number {
    width: 65px;
    height: 38px;
    padding: 0 12px;
    border: 1px solid #e2e8f0;
    background: #ffffff;
    border-radius: 10px;
    text-align: center;
    font-size: 14px;
}

.pagination .page_number:focus {
    outline: none;
    border-color: #ff6b35;
}

.pagination .submit {
    height: 38px;
    padding: 0 20px;
    background: #ff6b35;
    color: #ffffff;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.pagination .submit:hover {
    background: #e55a2b;
    transform: translateY(-2px);
}

/* =================================================================================================== */
.page-num { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: 40px; cursor: pointer; background: #f0f0f0; }
.page-num.active { background: var(--brand-orange); color: white; }

/* ========== 详情页 ========== */
.breadcrumb { margin: 20px 0; font-size: 0.85rem; color: var(--text-soft); }
.detail-wrapper { background: white; border-radius: 32px; box-shadow: var(--shadow-sm); overflow: hidden; margin-bottom: 40px; }
.detail-header { display: flex; gap: 48px; flex-wrap: wrap; padding: 32px; }
.detail-gallery { flex: 1; }
.main-image { background: var(--gray-bg); border-radius: 28px; padding: 32px; text-align: center; }
.detail-info { flex: 1.2; }
.detail-info h1 { font-size: 1.8rem; margin-bottom: 12px; }
.product-catno-large { color: var(--brand-orange); font-weight: 600; margin-bottom: 16px; }
.price-large { font-size: 2rem; color: var(--brand-orange); font-weight: 700; margin: 16px 0; }
.spec-select { display: flex; gap: 12px; margin: 20px 0; }
.spec-tag { border: 1px solid var(--gray-border); padding: 8px 18px; border-radius: 40px; cursor: pointer; }
.spec-tag.selected { border-color: var(--brand-orange); background: var(--brand-orange-soft); color: var(--brand-orange); }
.quantity-box { display: flex; align-items: center; gap: 12px; margin: 20px 0; }
.qty-btn { width: 36px; height: 36px; border-radius: 40px; border: 1px solid var(--gray-border); background: white; cursor: pointer; }
.spec-table { width: 100%; background: var(--gray-table); border-radius: 20px; padding: 12px 16px; margin: 16px 0; }
.spec-table td { padding: 8px 0; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--gray-border); padding: 0 28px; }
.tab-btn { padding: 14px 24px; background: none; border: none; font-weight: 600; cursor: pointer; }
.tab-btn.active { color: var(--brand-orange); border-bottom: 3px solid var(--brand-orange); }
.tab-content { padding: 28px; }
.param-table { width: 100%; border-collapse: collapse; }
.param-table tr:nth-child(even) { background: var(--gray-bg); }
.param-table td { padding: 12px; border: 1px solid var(--gray-border); }
.related-products { padding: 24px 32px 40px; border-top: 1px solid var(--gray-border); }
.related-grid { display: flex; gap: 20px; overflow-x: auto; padding: 10px 0; }
.related-item { min-width: 200px; background: var(--gray-bg); border-radius: 20px; padding: 16px; text-align: center; cursor: pointer; }

/* ========== 页脚 ========== */
footer { background: #1E2A36; color: #CBD5E0; padding: 48px 0 24px; margin-top: 60px; }
.footer-container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 32px; }
.footer-container a { color: #CBD5E0; text-decoration: none; }
.footer-container a:hover { color: var(--brand-orange); }

/* ========== 悬浮组件 ========== */
.float-sidebar { position: fixed; right: 24px; bottom: 120px; z-index: 999; display: flex; flex-direction: column; gap: 12px; }
.float-item { width: 56px; height: 56px; background: white; border-radius: 28px; box-shadow: 0 4px 16px rgba(0,0,0,0.12); display: flex; flex-direction: column; align-items: center; justify-content: center; cursor: pointer; border: 1px solid var(--gray-border); }
.float-item i { font-size: 22px; color: var(--brand-orange); }
.float-item span { font-size: 10px; }
.back-top { background: var(--brand-orange); }
.back-top i { color: white; }
.qrcode-popup { position: fixed; right: 100px; bottom: 180px; background: white; padding: 12px; border-radius: 20px; box-shadow: var(--shadow-md); display: none; text-align: center; z-index: 1000; }

/* ========== 响应式 ========== */
@media (max-width: 1000px) {
    .nav-container { flex-direction: column; align-items: stretch; }
    .main-nav { justify-content: center; }
    .search-area { width: 100%; }
    .accordion-sidebar { position: static; width: 100%; }
    .detail-header { flex-direction: column; }
}


/*============================*/
/* ========== 导航菜单样式 ========== */

.main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
    align-items: center;
}

/* .main-nav a { text-decoration: none; font-weight: 500; color: var(--text-dark); transition: color 0.2s; font-size: 0.95rem; white-space: nowrap; } */
/* .main-nav a:hover, .main-nav a.active { color: var(--brand-orange); } */
.main-nav a,
.main-nav > .dropdown > .dropdown-toggle {
    text-decoration: none;
    font-weight: 500;
    color: var(--text-dark);
    transition: color 0.2s;
    font-size: 0.95rem;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* 悬停变色 */
.main-nav > a:hover,
.main-nav > .dropdown > .dropdown-toggle:hover {
    color: var(--brand-orange);
}

/* 高亮当前栏目 */
.main-nav > a.active,
.main-nav > .dropdown > .dropdown-toggle.active {
    color: var(--brand-orange);
}

/* .main-nav li , */
.dropdown li{
    padding: 0.65rem 0.5rem 0.65rem 0.5rem;
    /* font-weight: 700; */
}


/* 下拉菜单箭头 */
.dropdown-toggle i {
    font-size: 11px;
    transition: transform 0.2s;
}

.dropdown:hover .dropdown-toggle i {
    transform: rotate(180deg);
}

/* 下拉菜单面板 */
.dropdown {
    position: relative;
    margin-top: 0;
}

.dropdown-menu {
    position: absolute;
    /* top: 40px; */
    top: 100%; 
    margin-top: 0;
    left: 0;
    /* background: white; */
    background-color:rgba(0, 0, 0, 0.6);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    padding: 6px 0;
    min-width: 160px;

    /* 新增滚动支持 */
    max-height: 400px;      /* 最大高度，超过则滚动 */
    overflow-y: auto;       /* 垂直方向滚动 */

    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 1001;
    border: 1px solid var(--gray-border);
   
    
}
.dropdown-menu li {
    padding: 0.25rem 0.15rem 0.25rem 0.15rem;
}
.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    display: block;

}

.dropdown-menu li {
    list-style: none;
}

.dropdown-menu a {
    display: block;
    padding: 5px 10px;
    text-decoration: none;
    color: var(--text-dark);
    font-size: 0.85rem;
    transition: all 0.2s;
}

/* 下拉菜单悬停变色 */
.dropdown-menu a:hover {
    background: var(--brand-orange-soft);
    color: var(--brand-orange);
}


/* ======================================左侧导航 */

/* ========== 手风琴侧边栏样式 ========== */
/* .accordion-sidebar {
    flex: 0 0 280px;
    background: var(--pure-white);
    border-radius: 28px;
    padding: 20px 16px;
    box-shadow: var(--shadow-sm);
    height: fit-content;
    position: sticky;
    top: 100px;
} */

.accordion-sidebar {
    flex: 0 0 280px;
    background: var(--pure-white);
    border-radius: 28px;
    padding: 24px 16px;
    box-shadow: var(--shadow-sm);
    /* position: sticky;
    top: 0px; */
    height: fit-content;
    /* align-self: flex-start; */
}

.left_h {
    font-size: 1.2rem;
    color: var(--brand-orange);
    border-bottom: 2px solid var(--brand-orange);
    padding-bottom: 12px;
    margin-bottom: 16px;
    font-weight: 700;
}

.accordion-item {
    border-bottom: 1px solid var(--gray-border);
    margin-bottom: 2px;
}

/* 第一级：主分类样式 */
.accordion-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 12px;
    font-weight: 700;
    font-size: 1rem;
    font-family: 'Roboto', sans-serif;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-dark);
    background: transparent;
    border-left: 3px solid transparent;
    margin: 0;
}

.accordion-header:hover {
    background: var(--brand-orange-soft);
    border-left: 3px solid var(--brand-orange);
    color: var(--brand-orange);
}

/* 展开状态保留橙色左边框 */
.accordion-item.expanded .accordion-header {
    background: var(--brand-orange-soft);
    border-left: 3px solid var(--brand-orange);
    color: var(--brand-orange);
}

.accordion-header .toggle-icon {
    transition: transform 0.3s ease;
    font-size: 12px;
    color: #5B6F82;
}

.accordion-item.expanded .accordion-header .toggle-icon {
    transform: rotate(90deg);
    color: var(--brand-orange);
}

.accordion-content {
    display: none;
    background: #FEFEFE;
    padding: 8px 0 16px 0;
}

.accordion-item.expanded .accordion-content {
    display: block;
}

/* 第二级：子分类样式 */
.sub-item,.sub-item a {
    display: block;
    padding: 12px 12px 12px 44px;
    cursor: pointer;
    font-size: 0.9rem;
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    color: var(--text-soft);
    transition: all 0.2s ease;
    position: relative;
    line-height: 1.5;
    border-radius: 8px;
    margin: 2px 0;
}

/* 短横线前缀（橙色） */
.sub-item::before {
    content: "—";
    position: absolute;
    left: 24px;
    color: var(--brand-orange);
    font-weight: 400;
    transition: all 0.2s;
}

/* 悬停效果 */
.sub-item:hover {
    color: var(--text-dark);
    font-weight: 500;
    background: #F9F9FB;
}

/* 选中状态：橙色文字 + 前缀变为实心方块 ■ */
.sub-item.active {
    color: var(--brand-orange);
    font-weight: 600;
    background: #FEFEFE;
}

.sub-item.active::before {
    content: "■";
    font-size: 9px;
    left: 24px;
    top: 13px;
    color: var(--brand-orange);
}

/* 核心样式：控制展开/收起 */
.accordion-content {
    display: none;  /* 默认收起 */
}

.accordion-item.expanded .accordion-content {
    display: block;  /* 展开时显示 */
}

/* 箭头旋转效果（可选） */
.accordion-header .toggle-icon {
    transition: transform 0.3s ease;
    display: inline-block;
}

.accordion-item.expanded .accordion-header .toggle-icon {
    transform: rotate(90deg);
}


.weixin {
    width: 15vw;      /* 视口宽度的15% */
    height: 15vw;     /* 保持正方形 */
    max-width: 150px; /* 最大宽度限制 */
    min-width: 60px;  /* 最小宽度限制 */
    object-fit: contain;
}


/* ========================================================================= */
/* 规格选择区域 */
.spec-section {
    background: #F8F9FC;
    border-radius: 16px;
    padding: 20px;
    margin: 20px 0;
}

.spec-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid #E9EDF2;
}

.spec-label {
    font-size: 14px;
    font-weight: 600;
    color: #1E2F3A;
}

.spec-selected {
    font-size: 13px;
    color: #E05A2A;
    background: #FFF2EB;
    padding: 4px 12px;
    border-radius: 20px;
}

.spec-options {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 20px;
}

/* 圆圈单选按钮样式 */
.spec-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 8px 0;
}

.spec-item input[type="radio"] {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid #CBD5E0;
    border-radius: 50%;
    margin: 0;
    position: relative;
    cursor: pointer;
    transition: all 0.2s ease;
}

.spec-item input[type="radio"]:checked {
    border-color: #E05A2A;
    background-color: #E05A2A;
    box-shadow: inset 0 0 0 3px white;
}

.spec-item input[type="radio"]:hover {
    border-color: #E05A2A;
}

.spec-name {
    font-size: 14px;
    font-weight: 500;
    color: #1E2F3A;
}

.spec-price {
    font-size: 14px;
    font-weight: 600;
    color: #E05A2A;
    margin-left: 4px;
}

.spec-footer {
    display: flex;
    justify-content: flex-start;
    padding-top: 16px;
    border-top: 1px solid #E9EDF2;
}

.price-display {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.price-label {
    font-size: 13px;
    color: #5B6F82;
}

.price-value {
    font-size: 24px;
    font-weight: 700;
    color: #E05A2A;
}



/* =========================================================================== */


/* ===============搜索页样式====================== */
.search-header {
    background: linear-gradient(120deg, #FEF5ED, #fff);
    border-radius: 32px;
    padding: 20px 28px;
    margin-bottom: 24px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
}
.search-keyword-tag {
    background: var(--brand-orange-soft);
    padding: 6px 16px;
    border-radius: 40px;
    font-size: 0.9rem;
    color: var(--brand-orange);
    font-weight: 500;
}
.clear-search-btn {
    background: transparent;
    border: 1px solid var(--gray-border);
    border-radius: 40px;
    padding: 6px 16px;
    cursor: pointer;
    font-size: 0.8rem;
    text-decoration: none;
    color: var(--text-dark);
}
.highlight {
    background: var(--brand-orange-soft);
    color: var(--brand-orange);
    padding: 0 2px;
    border-radius: 4px;
    font-weight: 600;
}
.product-category-badge {
    position: absolute;
    top: -10px;
    left: 20px;
    background: var(--brand-orange);
    color: white;
    font-size: 0.7rem;
    padding: 2px 12px;
    border-radius: 20px;
}
.no-results-card {
    background: white;
    border-radius: 28px;
    padding: 60px 40px;
    text-align: center;
    border: 1px solid var(--gray-border);
}
.no-results-card i {
    font-size: 64px;
    color: var(--text-soft);
    margin-bottom: 20px;
    opacity: 0.5;
}
/* ================================================================================================== */

/* 针对不同屏幕调整 */
@media (max-width: 768px) {
    .weixin {
        width: 20vw;   /* 手机端稍大些 */
        height: 20vw;
    }
}

@media (min-width: 1200px) {
    .weixin {
        width: 8vw;    /* 大屏幕适当缩小 */
        height: 8vw;
    }
}

/*小屏幕*/
@media screen and (max-width: 768px) {
	.top_menu {display: none;}
	.logo-img {
		display: block;
		margin: 10px auto;
		max-height: 50px;
    }
}

@media screen and (max-width: 340px) {
	/* .logo {
		max-height: 100px;
	} */
}

/* 大屏幕 */
@media screen and (min-width: 769px) {
	header {}

	.logo-img {
		margin: 10px 0px;
		max-height: 90px;
    }
}


/* ========== 新增：笔记本屏幕适配 (1366px - 1440px) ========== */
@media (min-width: 1280px) and (max-width: 1440px) {
    .container {
        max-width: 1200px;
        padding: 0 20px;
    }
    
    .main-nav {
        gap: 16px;
    }
    
    .main-nav a {
        font-size: 0.85rem;
    }
    
    .main-nav > li, .dropdown > li {
        padding: 0.4rem 0.3rem;
    }
    
    .search-area {
        min-width: 240px;
    }
    
    .search-input {
        min-width: 140px;
        padding: 8px 10px;
    }
    
    .brand-cn {
        font-size: 1.2rem;
    }
    
    
    .accordion-sidebar {
        flex: 0 0 250px;
    }
    
    .hero-section {
        padding: 40px 30px;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
}

/* ========== 新增：中等屏幕适配 (992px - 1279px) ========== */
@media (min-width: 992px) and (max-width: 1279px) {
    .container {
        max-width: 960px;
        padding: 0 16px;
    }
    
    .main-nav {
        gap: 12px;
    }
    
    .main-nav a {
        font-size: 0.8rem;
    }
    
    .main-nav > li, .dropdown > li {
        padding: 0.35rem 0.25rem;
    }
    
    .search-area {
        min-width: 200px;
    }
    
    .search-input {
        min-width: 120px;
        padding: 6px 8px;
        font-size: 12px;
    }
    
    .search-btn {
        padding: 0 10px;
        font-size: 13px;
    }
    
    .brand-cn {
        font-size: 1rem;
    }
    
    .brand-en {
        font-size: 0.5rem;
    }
    
    
    .hero-section {
        padding: 32px 24px;
    }
    
    .hero-section h1 {
        font-size: 1.6rem;
    }
    
    .section-title {
        font-size: 1.3rem;
    }
    
    .advantages-grid {
        gap: 20px;
    }
    
    .product-grid {
        gap: 20px;
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
    
    .list-layout {
        gap: 24px;
    }
    
    .accordion-sidebar {
        flex: 0 0 240px;
        padding: 16px;
    }
    
    .left_h {
        font-size: 1rem;
        padding-bottom: 8px;
        margin-bottom: 12px;
    }
    
    .accordion-header {
        padding: 10px 8px;
        font-size: 0.85rem;
    }
    
    .sub-item, .sub-item a {
        padding: 8px 8px 8px 36px;
        font-size: 0.8rem;
    }
    
    .sub-item::before {
        left: 18px;
    }
    
    .product-list-mode .product-row {
        padding: 16px;
        gap: 16px;
    }
    
    .product-img-small {
        width: 70px;
        height: 70px;
        font-size: 28px;
    }
    
    .product-name {
        font-size: 1rem;
    }
    
    .product-actions {
        min-width: 140px;
    }
    
    .btn-primary-orange, .btn-outline-orange {
        padding: 6px 16px;
        font-size: 0.8rem;
    }
}

/* ========== 新增：平板竖屏适配 (768px - 991px) ========== */
@media (min-width: 768px) and (max-width: 991px) {
    .container {
        max-width: 720px;
        padding: 0 16px;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 12px;
    }
    
    .logo-area {
        justify-content: center;
    }
    
    .main-nav {
        justify-content: center;
        gap: 16px;
    }
    
    .search-area {
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
        min-width: auto;
    }
    
    .hero-section {
        padding: 28px 20px;
        margin: 24px 0;
    }
    
    .hero-section h1 {
        font-size: 1.4rem;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        margin: 32px 0;
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .section-title {
        font-size: 1.2rem;
        margin-bottom: 24px;
    }
    
    .list-layout {
        flex-direction: column;
        gap: 24px;
    }
    
    .accordion-sidebar {
        flex: auto;
        width: 100%;
    }
    
    .product-area {
        flex: auto;
    }
    
    .detail-header {
        flex-direction: column;
        gap: 24px;
        padding: 24px;
    }
    
    .tabs {
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .footer-container {
        flex-wrap: wrap;
        justify-content: center;
        gap: 24px;
    }
}

/* ========== 新增：手机横屏适配 (576px - 767px) ========== */
@media (min-width: 576px) and (max-width: 767px) {
    .container {
        padding: 0 16px;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 12px;
    }
    
    .logo-area {
        justify-content: center;
    }
    
    .main-nav {
        justify-content: center;
        gap: 12px;
        flex-wrap: wrap;
    }
    
    .search-area {
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
        min-width: auto;
    }
    
    .search-input {
        min-width: 100px;
        padding: 6px 8px;
        font-size: 12px;
    }
    
    .search-btn {
        padding: 0 10px;
        font-size: 12px;
    }
    
    .brand-cn {
        font-size: 1rem;
    }
    
    .hero-section {
        padding: 24px 16px;
        margin: 20px 0;
    }
    
    .hero-section h1 {
        font-size: 1.2rem;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        margin: 24px 0;
    }
    
    .advantage-card {
        padding: 20px 16px;
    }
    
    .advantage-card i {
        font-size: 36px;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .section-title {
        font-size: 1.1rem;
    }
    
    .list-layout {
        flex-direction: column;
        gap: 20px;
    }
    
    .accordion-sidebar {
        flex: auto;
        width: 100%;
    }
    
    .product-list-mode .product-row {
        flex-direction: column;
        text-align: center;
        padding: 16px;
        gap: 12px;
    }
    
    .product-img-small {
        margin: 0 auto;
    }
    
    .product-actions {
        text-align: center;
        min-width: auto;
    }
    
    .filter-tags {
        justify-content: center;
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .pagination .page-link {
        min-width: 34px;
        height: 34px;
        padding: 0 8px;
        font-size: 12px;
    }
    
    .pagination .jumpto {
        margin-left: 0;
        margin-top: 12px;
        width: 100%;
        justify-content: center;
    }
    
    .detail-header {
        flex-direction: column;
        padding: 20px;
    }
    
    .detail-info h1 {
        font-size: 1.3rem;
    }
    
    .price-large {
        font-size: 1.5rem;
    }
    
    .tabs {
        overflow-x: auto;
        white-space: nowrap;
        padding: 0 16px;
    }
    
    .tab-btn {
        padding: 10px 14px;
        font-size: 0.8rem;
    }
    
    .float-sidebar {
        right: 12px;
        bottom: 80px;
    }
    
    .float-item {
        width: 44px;
        height: 44px;
    }
    
    .float-item i {
        font-size: 18px;
    }
    
    .footer-container {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
}

/* ========== 新增：手机竖屏适配 (小于576px) ========== */
@media (max-width: 575px) {
    .container {
        padding: 0 12px;
    }
    
    .top_menu {
        display: none;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 10px;
        padding: 10px 0;
    }
    
    .logo-area {
        justify-content: center;
        gap: 8px;
    }
    
    .brand-cn {
        font-size: 0.9rem;
    }
    
    .brand-en {
        font-size: 0.45rem;
    }
    
    .logo-img {
        max-height: 40px;
        margin: 5px auto;
    }
    
    .main-nav {
        justify-content: center;
        gap: 8px;
    }
    
    .main-nav a {
        font-size: 0.7rem;
    }
    
    .main-nav > li, .dropdown > li {
        padding: 0.25rem 0.2rem;
    }
    
    /* 移动端下拉菜单改为点击展开（不改变原有悬停行为，添加点击支持） */
    .dropdown-menu {
        position: absolute;
        top: 100%;
        left: 0;
        min-width: 160px;
        max-height: 300px;
        overflow-y: auto;
        opacity: 0;
        visibility: hidden;
    }
    
    /* 保持原有悬停效果，同时支持点击 */
    .dropdown.active .dropdown-menu {
        opacity: 1;
        visibility: visible;
    }
    
    .search-area {
        width: 100%;
        min-width: auto;
    }
    
    .search-input {
        min-width: 100px;
        padding: 6px 8px;
        font-size: 12px;
    }
    
    .search-btn {
        padding: 0 10px;
        font-size: 12px;
    }
    
    .hero-section {
        padding: 20px 16px;
        margin: 16px 0;
        border-radius: 24px;
    }
    
    .hero-section h1 {
        font-size: 1.1rem;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        margin: 20px 0;
    }
    
    .advantage-card {
        padding: 16px;
    }
    
    .advantage-card i {
        font-size: 28px;
    }
    
    .advantage-card h3 {
        margin: 8px 0;
        font-size: 1rem;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        margin: 20px 0;
    }
    
    .product-card {
        padding: 14px;
    }
    
    .product-title {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1rem;
        margin-bottom: 16px;
    }
    
    .section-title:after {
        width: 40px;
        bottom: -8px;
    }
    
    .list-layout {
        flex-direction: column;
        gap: 16px;
        margin: 16px 0;
    }
    
    .accordion-sidebar {
        flex: auto;
        width: 100%;
        padding: 12px;
    }
    
    .left_h {
        font-size: 0.95rem;
        padding-bottom: 8px;
        margin-bottom: 10px;
    }
    
    .accordion-header {
        padding: 8px 6px;
        font-size: 0.8rem;
    }
    
    .sub-item, .sub-item a {
        padding: 6px 6px 6px 32px;
        font-size: 0.75rem;
    }
    
    .sub-item::before {
        left: 16px;
    }
    
    .product-list-mode .product-row {
        flex-direction: column;
        text-align: center;
        padding: 14px;
        gap: 10px;
    }
    
    .product-img-small {
        width: 60px;
        height: 60px;
        font-size: 24px;
        margin: 0 auto;
    }
    
    .product-name {
        font-size: 0.9rem;
    }
    
    .product-catno {
        font-size: 0.7rem;
    }
    
    .product-actions {
        text-align: center;
        min-width: auto;
    }
    
    .price {
        font-size: 0.85rem;
    }
    
    .btn-primary-orange, .btn-outline-orange {
        padding: 5px 12px;
        font-size: 0.7rem;
    }
    
    .filter-tags {
        gap: 8px;
        justify-content: center;
    }
    
    .filter-badge {
        padding: 4px 10px;
        font-size: 0.7rem;
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: 6px;
        margin: 20px 0;
    }
    
    .pagination .page-link {
        min-width: 30px;
        height: 30px;
        padding: 0 6px;
        font-size: 11px;
    }
    
    .pagination .jumpto {
        margin-left: 0;
        margin-top: 10px;
        width: 100%;
        justify-content: center;
    }
    
    .pagination .page_number {
        width: 55px;
        height: 32px;
        font-size: 12px;
    }
    
    .pagination .submit {
        height: 32px;
        padding: 0 12px;
        font-size: 12px;
    }
    
    .breadcrumb {
        margin: 12px 0;
        font-size: 0.7rem;
    }
    
    .detail-header {
        flex-direction: column;
        padding: 16px;
        gap: 16px;
    }
    
    .detail-info h1 {
        font-size: 1.1rem;
    }
    
    .price-large {
        font-size: 1.3rem;
    }
    
    .tabs {
        overflow-x: auto;
        white-space: nowrap;
        padding: 0 12px;
        gap: 0;
    }
    
    .tab-btn {
        padding: 8px 12px;
        font-size: 0.75rem;
    }
    
    .tab-content {
        padding: 16px;
    }
    
    .param-table td {
        padding: 8px;
        font-size: 0.7rem;
        word-break: break-word;
    }
    
    .spec-options {
        gap: 12px;
    }
    
    .spec-name, .spec-price {
        font-size: 12px;
    }
    
    .quantity-box {
        flex-wrap: wrap;
    }
    
    .float-sidebar {
        right: 10px;
        bottom: 70px;
        gap: 8px;
    }
    
    .float-item {
        width: 38px;
        height: 38px;
    }
    
    .float-item i {
        font-size: 16px;
    }
    
    .float-item span {
        font-size: 8px;
    }
    
    .footer-container {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    footer {
        padding: 32px 0 20px;
        margin-top: 40px;
    }
}

/* ========== 新增：超小手机适配 (小于380px) ========== */
@media (max-width: 379px) {
    .main-nav {
        gap: 6px;
    }
    
    .main-nav a {
        font-size: 0.65rem;
    }
    
    .brand-cn {
        font-size: 0.8rem;
    }
    
    .hero-section h1 {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 0.95rem;
    }
    
    .product-name {
        font-size: 0.85rem;
    }
    
    .filter-badge {
        padding: 3px 8px;
        font-size: 0.65rem;
    }
}

/* ========== 新增：大屏幕优化 (1441px以上) ========== */
@media (min-width: 1441px) {
    .container {
        max-width: 1320px;
    }
    
    .main-nav {
        gap: 28px;
    }
}

/* ========== 新增：高分辨率屏幕适配 ========== */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo-img {
        image-rendering: -webkit-optimize-contrast;
    }
}

/* ========== 新增：打印样式 ========== */
@media print {
    .navbar, 
    .search-area,
    .float-sidebar,
    footer,
    .pagination,
    .top_menu {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
}


* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Microsoft YaHei', sans-serif;
    /* 整个网页背景使用分子结构图，无渐变 */
    background-image: url('../../../../images/background.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    min-height: 100vh;
}

/* 半透明遮罩层（确保文字可读性） */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: -1;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== 网站内容样式 ========== */

/* Header 区域 - 透明背景透出底图 */
header {
    background: transparent;
}

/* 顶部宣传栏 */
.top_menu {
    background: transparent;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    padding: 12px 0;
}

.top-promo-text {
    color: #FFFFFF;
    font-size: 13px;
    text-align: center;
    opacity: 0.9;
}

.top-promo-text i {
    margin-right: 8px;
    color: #E65D28;
}

/* Logo 区域 */
.container-logo {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0 10px 0;
    flex-wrap: wrap;
    gap: 20px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* .logo-img-wrapper {
    width: 50px;
    height: 50px;
    background: #E65D28;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
} */

.logo-img-wrapper i {
    font-size: 28px;
    /* color: white; */
}

.brand-cn {
    font-size: 1.5rem;
    font-weight: 700;
    color: #FFFFFF;
}

.brand-en {
    font-size: 0.6rem;
    letter-spacing: 2px;
    color: rgba(255,255,255,0.8);
}

/* 导航栏 */
.navbar {
    background: transparent;
    /* padding: 15px 0; */
    margin: 0px;
}

/* .nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
} */

.nav-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    /* gap: 16px; */
    padding: 10px 0;
}

.main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    align-items: center;
}


.main-nav li a {
    text-decoration: none;
    color: #FFFFFF;
    font-weight: 500;
    font-size: 1.1rem;
    padding: 8px 8px;
    border-radius: 40px;
    transition: all 0.2s;
}

.main-nav li a:hover,
.main-nav li a.active {
    color: #E65D28;
    background: rgba(255, 255, 255, 0.15);
}

/* 搜索框 */
 /* 搜索框 */
 .search-area form {
    display: flex;
    align-items: center;
    /* background: rgba(255, 255, 255, 0.15); */
    border-radius: 30px;
    border: 1px solid rgba(255,255,255,0.3);
    overflow: hidden;
}

.search-input {
    border: none;
    padding: 10px 16px;
    width: 200px;
    background: transparent;
    outline: none;
    font-size: 14px;
    /* color: #FFFFFF; */
}

.search-input::placeholder {
    /* color: rgba(255,255,255,0.3); */
    color: rgba(0,0,0,0.7);
}

.search-btn {
    background: #E65D28;
    border: none;
    padding: 10px 18px;
    cursor: pointer;
    color: white;
}

/* Banner 内容区域 - 白色背景卡片，独立于网页背景 */
.hero-section {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 32px;
    padding: 60px 48px;
    margin: 40px 0;
    text-align: center;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.hero-section h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: #0F2A43;
    margin-bottom: 20px;
}

.hero-section h1 .highlight {
    color: #E65D28;
}

.hero-section p {
    font-size: 1rem;
    color: #4a5568;
    margin-bottom: 30px;
}

.btn-primary-orange {
    background: #E65D28;
    color: white;
    border: none;
    padding: 12px 32px;
    border-radius: 40px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary-orange:hover {
    background: #C94A1E;
}

/* 核心优势卡片 */
.advantages-grid {
    display: flex;
    gap: 30px;
    margin: 50px 0;
    flex-wrap: wrap;
}

.advantage-card {
    flex: 1;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 30px 20px;
    text-align: center;
    backdrop-filter: blur(2px);
    transition: transform 0.2s;
}

.advantage-card:hover {
    transform: translateY(-5px);
}

.advantage-card i {
    font-size: 40px;
    color: #E65D28;
    margin-bottom: 15px;
}

.advantage-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: #0F2A43;
}

.advantage-card p {
    color: #666;
    font-size: 0.85rem;
}

/* 精选推荐产品区域 */
.recommend-section {
    margin: 50px 0;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 30px;
    text-align: center;
    text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.product-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 20px;
    text-align: center;
    transition: transform 0.2s;
}

.product-card:hover {
    transform: translateY(-5px);
}

.product-icon {
    font-size: 36px;
    color: #E65D28;
    margin-bottom: 12px;
}

.product-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: #0F2A43;
}

.product-code {
    font-size: 0.7rem;
    color: #999;
    margin-bottom: 10px;
}

.product-price {
    font-size: 1rem;
    font-weight: 700;
    color: #E65D28;
    margin-bottom: 12px;
}

.btn-outline-orange {
    background: transparent;
    border: 1px solid #E65D28;
    color: #E65D28;
    padding: 6px 16px;
    border-radius: 40px;
    font-size: 0.8rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.btn-outline-orange:hover {
    background: #E65D28;
    color: white;
}

/* 页脚 */
footer {
    background: rgba(30, 42, 54, 0.95);
    color: #CBD5E0;
    padding: 40px 0 20px;
    margin-top: 60px;
}

.footer-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 32px;
}

.footer-container a {
    color: #CBD5E0;
    text-decoration: none;
    font-size: 0.85rem;
}

.copyright {
    text-align: center;
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.75rem;
}

/* 响应式 */
@media (max-width: 768px) {
    .container-logo {
        flex-direction: column;
        text-align: center;
    }
    .nav-container {
        flex-direction: column;
    }
    .main-nav {
        justify-content: center;
    }
    .hero-section {
        padding: 30px 20px;
    }
    .hero-section h1 {
        font-size: 1.6rem;
    }
    .advantages-grid {
        flex-direction: column;
    }
}


/* ========================折叠菜单========================== */
/* ========== 移动端样式 ========== */

/* ========== 移动端样式（修复菜单位移问题） ========== */

/* 汉堡菜单按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justifyify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1002;
}

.mobile-menu-toggle span {
    width: 100%;
    height: 3px;
    background: #E65D28;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 移动端搜索图标 */
.mobile-search-icon {
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: white;
    font-size: 18px;
    cursor: pointer;
}

/* 移动端独立搜索框 */
.mobile-search-area {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 42, 67, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px;
    z-index: 999;
}

.mobile-search-area.active {
    display: block;
}

.mobile-search-area form {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 30px;
    border: 1px solid rgba(255,255,255,0.3);
    overflow: hidden;
}

.mobile-search-area .search-input {
    flex: 1;
    border: none;
    padding: 12px 16px;
    background: transparent;
    color: white;
    outline: none;
}

.mobile-search-area .search-btn {
    background: #E65D28;
    border: none;
    padding: 12px 20px;
    cursor: pointer;
    color: white;
}

/* 遮罩层 */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    display: none;
}

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

/* ========== 移动端布局 (768px以下) ========== */
/* ========== 移动端汉堡菜单样式 ========== */

/* 桌面端正常显示 */
.main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* 汉堡菜单按钮 - 默认隐藏 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 100%;
    height: 3px;
    background: #E65D28;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 移动端搜索图标 */
.mobile-search-icon {
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: white;
    cursor: pointer;
}

/* 移动端独立搜索框 */
.mobile-search-area {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 42, 67, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px;
    z-index: 999;
}

.mobile-search-area.active {
    display: block;
}

.mobile-search-area form {
    display: flex;
    background: rgba(255,255,255,0.15);
    border-radius: 30px;
    border: 1px solid rgba(255,255,255,0.3);
    overflow: hidden;
}

.mobile-search-area .search-input {
    flex: 1;
    padding: 12px 16px;
    background: transparent;
    border: none;
    color: white;
    outline: none;
}

.mobile-search-area .search-btn {
    background: #E65D28;
    border: none;
    padding: 12px 20px;
    color: white;
    cursor: pointer;
}

/* ========== 移动端布局 (768px以下) ========== */