/* ==========================================================
   好凯瑞科技 - 全站样式表（最终整理版）
   配色：#1e40af（主）/ #3b82f6（辅）/ #f59e0b（强调）
   ========================================================== */

/* ==================== 1. 全局重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}
html { scroll-behavior: smooth; }
body {
    background-color: #f6f9fe;
    color: #1e293b;
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a { text-decoration: none; color: inherit; transition: all 0.25s ease; }
img { max-width: 100%; height: auto; display: block; }
::selection { background: #1e40af; color: #fff; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #eef2f7; }
::-webkit-scrollbar-thumb { background: #c7d5e8; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #1e40af; }

/* ==================== 2. 通用容器 ==================== */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ==================== 3. 顶部导航 ==================== */
nav {
    background: #fff;
    backdrop-filter: saturate(180%) blur(18px);
    -webkit-backdrop-filter: saturate(180%) blur(18px);
    box-shadow: 0 1px 0 rgba(15, 23, 42, 0.06), 0 8px 24px -12px rgba(15, 23, 42, 0.12);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid #2f70ed;
}
.nav-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 16px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}
.logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-size: 22px;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.5px;
    flex-shrink: 0;
}
.logo-img {
    height: 70px;
    width: auto;
    display: block;
}
.logo-text {
    font-size: 18px;
    font-weight: 800;
    color: #0f172a;
    line-height: 1.2;
}
.logo-text span { color: #1e40af; }

/* 导航链接 */
.nav-links {
    position: relative;
    display: flex;
    gap: 0;
    flex: 1;
    justify-content: space-evenly;
    padding: 0 60px;
}
.nav-links a {
    position: relative;
    z-index: 2;
    font-size: 15px;
    font-weight: 600;
    color: #475569;
    padding: 10px 20px;
    border-radius: 22px;
    transition: color 0.15s ease;
    white-space: nowrap;
}
.nav-links a.active { color: #fff; }
.nav-links a::after { display: none; }

.nav-slider {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    height: 40px;
    width: 0;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    border-radius: 22px;
    opacity: 0;
    transition: all 0.1s ease;
    z-index: 1;
    pointer-events: none;
    box-shadow: 0 6px 16px -6px rgba(30, 64, 175, 0.55);
}
.nav-slider.show { opacity: 1; }

.nav-right {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-shrink: 0;
}

/* 询盘按钮 */
.nav-btn {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    padding: 10px 16px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
    box-shadow: 0 6px 18px -6px rgba(30, 64, 175, 0.5);
    transition: all 0.28s ease;
}
.nav-btn:hover {
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
    transform: translateY(-2px);
    box-shadow: 0 10px 22px -8px rgba(30, 64, 175, 0.65);
}

/* 汉堡按钮 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    transition: background 0.25s ease;
}
.menu-toggle:hover { background: #eff6ff; }
.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #0f172a;
    border-radius: 2px;
    transition: all 0.3s ease;
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==================== 4. 语言切换器 ==================== */
.lang-switch {
    position: relative;
    cursor: pointer;
    user-select: none;
    padding: 6px 0;
}
.lang-current {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: #475569;
    padding: 8px 14px;
    border-radius: 10px;
    transition: all 0.25s ease;
}
.lang-current img {
    width: 20px;
    height: 15px;
    border-radius: 3px;
    object-fit: cover;
    box-shadow: 0 0 2px rgba(0, 0, 0, 0.1);
}
.lang-switch:hover .lang-current {
    color: #1e40af;
    background: #eff6ff;
}
.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    box-shadow: 0 18px 45px -12px rgba(15, 23, 42, 0.18);
    min-width: 170px;
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.25s ease;
    z-index: 100;
}
.lang-switch:hover .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.lang-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 14px;
    font-size: 14px;
    color: #334155;
    border-radius: 10px;
    white-space: nowrap;
}
.lang-dropdown a img {
    width: 20px;
    height: 15px;
    border-radius: 3px;
    object-fit: cover;
}
.lang-dropdown a:hover {
    background: #eff6ff;
    color: #1e40af;
}
.lang-dropdown::before {
    content: '';
    position: absolute;
    top: -6px;
    right: 20px;
    width: 10px;
    height: 10px;
    background: #fff;
    border-left: 1px solid #e2e8f0;
    border-top: 1px solid #e2e8f0;
    transform: rotate(45deg);
}

/* ==================== 5. 顶部搜索栏 ==================== */
.top-search-bar {
    background: #fff;
    padding: 16px 0;
    border-bottom: 1px solid #eef2f7;
}
.top-search-bar form {
    display: flex;
    max-width: 640px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 18px -8px rgba(15, 23, 42, 0.15);
    border: 1px solid #e2e8f0;
    transition: box-shadow 0.28s ease, border-color 0.28s ease;
}
.top-search-bar form:focus-within {
    border-color: #93c5fd;
    box-shadow: 0 6px 24px -8px rgba(30, 64, 175, 0.25);
}
.top-search-bar input {
    flex: 1;
    padding: 14px 20px;
    border: none;
    border-radius: 0;
    outline: none;
    font-size: 15px;
    background: #fff;
    color: #1e293b;
}
.top-search-bar input::placeholder { color: #94a3b8; }
.top-search-bar button {
    padding: 14px 35px;
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    color: #fff;
    border: none;
    font-weight: 700;
    cursor: pointer;
    font-size: 15px;
    transition: all 0.25s ease;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}
.top-search-bar button:hover {
    background: linear-gradient(135deg, #d97706, #f59e0b);
    letter-spacing: 1px;
}

/* ==================== 6. Hero ==================== */
.hero {
    padding: 80px 5%;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
    background: linear-gradient(135deg, #ffffff 0%, #eff6ff 60%, #e0edff 100%);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -120px;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.14), transparent 70%);
    pointer-events: none;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -140px;
    left: -100px;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.1), transparent 70%);
    pointer-events: none;
}
.hero-text { position: relative; z-index: 1; }
.hero-text .badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.8);
    color: #1e40af;
    padding: 6px 18px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 25px;
    border: 1px solid #dbeafe;
    box-shadow: 0 4px 12px -6px rgba(30, 64, 175, 0.25);
    backdrop-filter: blur(4px);
}
.hero-text h1 {
    font-size: 46px;
    line-height: 1.2;
    color: #0f172a;
    margin-bottom: 20px;
    font-weight: 800;
    letter-spacing: -0.5px;
}
.hero-text h1 span {
    color: #1e40af;
    position: relative;
    display: inline-block;
}
.hero-text h1 span::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 4px;
    width: 100%;
    height: 10px;
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.22), rgba(245, 158, 11, 0.22));
    border-radius: 4px;
    z-index: -1;
}
.hero-text p {
    font-size: 17px;
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 35px;
}
.hero-btns { display: flex; gap: 15px; flex-wrap: wrap; }
.hero-image { position: relative; z-index: 1; }
.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 30px 60px -20px rgba(15, 23, 42, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.6) inset;
    transition: transform 0.5s ease, box-shadow 0.5s ease;
}
.hero-image img:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow: 0 40px 70px -24px rgba(30, 64, 175, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.7) inset;
}

/* ==================== 7. 按钮 ==================== */
.btn-primary {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    padding: 14px 34px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 15px;
    display: inline-block;
    border: none;
    cursor: pointer;
    transition: all 0.28s ease;
    box-shadow: 0 10px 24px -10px rgba(30, 64, 175, 0.55);
    position: relative;
    overflow: hidden;
}
.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -80%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transform: skewX(-20deg);
    transition: left 0.55s ease;
}
.btn-primary:hover {
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
    transform: translateY(-3px);
    box-shadow: 0 16px 32px -12px rgba(30, 64, 175, 0.65);
}
.btn-primary:hover::after { left: 120%; }

.btn-outline {
    background: rgba(255, 255, 255, 0.6);
    color: #0f172a;
    padding: 14px 34px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 15px;
    display: inline-block;
    border: 2px solid #cbd5e1;
    transition: all 0.28s ease;
    backdrop-filter: blur(4px);
}
.btn-outline:hover {
    border-color: #1e40af;
    color: #1e40af;
    background: #eff6ff;
    transform: translateY(-3px);
    box-shadow: 0 12px 26px -14px rgba(30, 64, 175, 0.4);
}

/* ==================== 8. 通用区块 / 页面头 ==================== */
.section { padding: 80px 5%; }
.section-header {
    text-align: center;
    margin-bottom: 50px;
}
.section-header h2 {
    font-size: 34px;
    color: #0f172a;
    margin-bottom: 12px;
    font-weight: 800;
    letter-spacing: -0.5px;
    position: relative;
    display: inline-block;
}
.section-header h2::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -10px;
    transform: translateX(-50%);
    width: 56px;
    height: 4px;
    border-radius: 4px;
    background: linear-gradient(90deg, #1e40af, #f59e0b);
}
.section-header p {
    color: #64748b;
    font-size: 16px;
    margin-top: 18px;
}

.page-header {
    background: linear-gradient(135deg, #0f172a 0%, #1e40af 60%, #3b82f6 100%);
    color: #fff;
    padding: 120px 5% 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
    display: none;
}
.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 60%);
    pointer-events: none;
}
.page-header::after {
    content: '';
    position: absolute;
    bottom: -60px;
    right: -60px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.1);
    pointer-events: none;
}
.page-header h1 {
    font-size: 40px;
    margin-bottom: 12px;
    font-weight: 800;
    letter-spacing: -0.5px;
    position: relative;
    z-index: 1;
}
.page-header p {
    color: #bfdbfe;
    font-size: 16px;
    position: relative;
    z-index: 1;
}

/* ==================== 9. 数据网格 ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}
.stat-card {
    background: #fff;
    border-radius: 16px;
    padding: 35px 25px;
    text-align: center;
    border: 1px solid #eef2f7;
    transition: all 0.32s ease;
    position: relative;
    overflow: hidden;
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #1e40af, #3b82f6, #f59e0b);
    opacity: 0;
    transition: opacity 0.32s ease;
}
.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px -20px rgba(30, 64, 175, 0.22);
    border-color: #dbeafe;
}
.stat-card:hover::before { opacity: 1; }
.stat-card h3 {
    font-size: 38px;
    color: #1e40af;
    font-weight: 800;
    margin-bottom: 5px;
    letter-spacing: -1px;
}
.stat-card p {
    color: #64748b;
    font-size: 14px;
    font-weight: 600;
}

/* ==================== 10. 产品网格（通用） ==================== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}
.product-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid #eef2f7;
    transition: all 0.35s ease;
    display: flex;
    flex-direction: column;
}
.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 28px 56px -24px rgba(15, 23, 42, 0.2);
    border-color: #dbeafe;
}
.product-card .img {
    height: 200px;
    overflow: hidden;
    background: #f1f5f9;
    position: relative;
}
.product-card .img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.12), transparent 50%);
    opacity: 0;
    transition: opacity 0.35s ease;
}
.product-card:hover .img::after { opacity: 1; }
.product-card .img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.product-card:hover .img img { transform: scale(1.1); }
.product-card .info {
    padding: 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.product-card .info h3 {
    font-size: 17px;
    color: #0f172a;
    margin-bottom: 10px;
    font-weight: 700;
    transition: color 0.25s ease;
}
.product-card:hover .info h3 { color: #1e40af; }
.product-card .info p {
    color: #64748b;
    font-size: 13px;
    line-height: 1.7;
    margin-bottom: 18px;
    flex: 1;
}
.product-card .info .btn-inquire {
    display: block;
    text-align: center;
    padding: 11px;
    background: #eff6ff;
    color: #1e40af;
    border-radius: 10px;
    font-weight: 700;
    font-size: 13px;
    border: 1px solid #dbeafe;
    transition: all 0.28s ease;
}
.product-card .info .btn-inquire:hover {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 8px 20px -8px rgba(30, 64, 175, 0.55);
    transform: translateY(-2px);
}

/* ==================== 11. 分类筛选 / 分页 / 空状态 ==================== */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}
.filter-item {
    padding: 8px 20px;
    border: 1px solid #e2e8f0;
    border-radius: 22px;
    color: #475569;
    font-size: 14px;
    background: #fff;
    transition: all 0.28s ease;
    cursor: pointer;
}
.filter-item:hover {
    border-color: #1e40af;
    color: #1e40af;
    box-shadow: 0 6px 16px -10px rgba(30, 64, 175, 0.4);
    transform: translateY(-2px);
}
.filter-item.active {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 8px 20px -8px rgba(30, 64, 175, 0.55);
}

.pagination-wrap {
    text-align: center;
    margin-top: 40px;
}
.pagination-wrap .pagination {
    display: inline-flex;
    gap: 6px;
    list-style: none;
    padding: 0;
}
.pagination-wrap .pagination li a,
.pagination-wrap .pagination li span {
    display: inline-block;
    padding: 8px 14px;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    color: #475569;
    font-size: 14px;
    background: #fff;
    transition: all 0.25s ease;
}
.pagination-wrap .pagination li a:hover {
    border-color: #1e40af;
    color: #1e40af;
    background: #eff6ff;
    transform: translateY(-2px);
}
.pagination-wrap .pagination li.active span {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 6px 16px -8px rgba(30, 64, 175, 0.5);
}
.pagination-wrap .pagination li.disabled span {
    color: #cbd5e1;
    cursor: not-allowed;
}

.empty-tip {
    text-align: center;
    color: #94a3b8;
    padding: 60px 0;
    font-size: 16px;
}

/* ==================== 12. 行业应用 / 服务能力 / 资质 ==================== */
.app-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}
.app-card {
    background: #fff;
    border-radius: 16px;
    padding: 35px 25px;
    text-align: center;
    border: 1px solid #eef2f7;
    transition: all 0.32s ease;
    border-top: 3px solid #1e40af;
    position: relative;
    overflow: hidden;
}
.app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08), transparent 70%);
    transition: all 0.5s ease;
}
.app-card:hover::before { width: 300px; height: 300px; }
.app-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px -20px rgba(30, 64, 175, 0.18);
}
.app-card .icon {
    font-size: 38px;
    margin-bottom: 18px;
    display: block;
    transition: transform 0.32s ease;
}
.app-card:hover .icon { transform: scale(1.15) rotate(-4deg); }
.app-card h3 {
    font-size: 17px;
    color: #0f172a;
    margin-bottom: 10px;
    font-weight: 700;
    position: relative;
    z-index: 1;
}
.app-card p {
    color: #64748b;
    font-size: 13px;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}
.service-card {
    background: #fff;
    border-radius: 16px;
    padding: 35px;
    border: 1px solid #eef2f7;
    transition: all 0.32s ease;
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, #1e40af, #3b82f6, #f59e0b);
    opacity: 0;
    transition: opacity 0.32s ease;
}
.service-card:hover {
    border-color: #dbeafe;
    box-shadow: 0 22px 44px -22px rgba(30, 64, 175, 0.18);
    transform: translateY(-6px);
}
.service-card:hover::before { opacity: 1; }
.service-card .icon {
    font-size: 32px;
    margin-bottom: 18px;
    display: block;
    transition: transform 0.32s ease;
}
.service-card:hover .icon { transform: scale(1.12) translateY(-2px); }
.service-card h3 {
    font-size: 17px;
    color: #0f172a;
    margin-bottom: 10px;
    font-weight: 700;
}
.service-card p {
    color: #64748b;
    font-size: 13px;
    line-height: 1.7;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}
.cert-card {
    background: #fff;
    border-radius: 16px;
    padding: 30px 20px;
    text-align: center;
    border: 1px solid #eef2f7;
    transition: all 0.32s ease;
    position: relative;
    overflow: hidden;
}
.cert-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #1e40af, #f59e0b);
    transition: width 0.35s ease;
    border-radius: 3px;
}
.cert-card:hover::after { width: 60%; }
.cert-card:hover {
    border-color: #dbeafe;
    box-shadow: 0 18px 36px -20px rgba(30, 64, 175, 0.16);
    transform: translateY(-6px);
}
.cert-card .icon {
    font-size: 34px;
    margin-bottom: 15px;
    display: block;
    transition: transform 0.32s ease;
}
.cert-card:hover .icon { transform: scale(1.15); }
.cert-card h4 {
    font-size: 15px;
    color: #0f172a;
    margin-bottom: 5px;
    font-weight: 700;
}
.cert-card p {
    font-size: 12px;
    color: #64748b;
}

/* ==================== 13. 新闻 / 资讯 ==================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}
.news-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid #eef2f7;
    transition: all 0.32s ease;
}
.news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 28px 56px -24px rgba(15, 23, 42, 0.18);
    border-color: #dbeafe;
}
.news-card .img {
    height: 180px;
    overflow: hidden;
    position: relative;
}
.news-card .img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.15), transparent 60%);
    opacity: 0;
    transition: opacity 0.35s ease;
}
.news-card:hover .img::after { opacity: 1; }
.news-card .img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.news-card:hover .img img { transform: scale(1.08); }
.news-card .info { padding: 22px; }
.news-card .info .date {
    font-size: 12px;
    color: #1e40af;
    font-weight: 700;
    margin-bottom: 8px;
    display: inline-block;
    background: #eff6ff;
    padding: 3px 10px;
    border-radius: 6px;
    border: 1px solid #dbeafe;
}
.news-card .info h3 {
    font-size: 16px;
    color: #0f172a;
    margin-bottom: 8px;
    font-weight: 700;
    line-height: 1.4;
    transition: color 0.25s ease;
}
.news-card:hover .info h3 { color: #1e40af; }
.news-card .info p {
    color: #64748b;
    font-size: 13px;
    line-height: 1.6;
}

.news-list-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.news-item {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid #eef2f7;
    transition: all 0.32s ease;
    display: flex;
    flex-direction: column;
}
.news-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 28px 56px -24px rgba(15, 23, 42, 0.18);
    border-color: #dbeafe;
}
.news-item-img {
    display: block;
    height: 200px;
    overflow: hidden;
    background: #f1f5f9;
    position: relative;
}
.news-item-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.18), transparent 55%);
    opacity: 0;
    transition: opacity 0.35s ease;
}
.news-item:hover .news-item-img::after { opacity: 1; }
.news-item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.news-item:hover .news-item-img img { transform: scale(1.08); }
.news-item-info {
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.news-item-info .date {
    font-size: 12px;
    color: #1e40af;
    font-weight: 700;
    margin-bottom: 8px;
    display: inline-block;
    background: #eff6ff;
    padding: 3px 10px;
    border-radius: 6px;
    border: 1px solid #dbeafe;
    align-self: flex-start;
}
.news-item-info h3 {
    font-size: 17px;
    color: #0f172a;
    margin-bottom: 10px;
    font-weight: 700;
    line-height: 1.4;
    transition: color 0.25s ease;
}
.news-item-info h3 a:hover { color: #1e40af; }
.news-item-info p {
    color: #64748b;
    font-size: 13px;
    line-height: 1.7;
    flex: 1;
    margin-bottom: 15px;
}
.news-item-info .meta {
    display: flex;
    gap: 15px;
    font-size: 12px;
    color: #94a3b8;
}

/* ==================== 14. 资讯详情 / 详情页导航 ==================== */
.article-wrap { max-width: 800px; margin: 0 auto; }
.article-cover {
    margin-bottom: 30px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 45px -20px rgba(15, 23, 42, 0.2);
}
.article-cover img { width: 100%; display: block; }
.article-content {
    font-size: 16px;
    line-height: 1.9;
    color: #334155;
    margin-bottom: 40px;
}
.article-content p { margin-bottom: 18px; }
.article-content h2,
.article-content h3 {
    color: #0f172a;
    margin: 25px 0 15px;
    font-weight: 700;
}
.article-content ul,
.article-content ol {
    padding-left: 25px;
    margin-bottom: 18px;
}
.article-content li { margin-bottom: 8px; }
.article-content strong { color: #0f172a; }
.article-footer {
    display: flex;
    gap: 15px;
    padding-top: 30px;
    border-top: 1px solid #e2e8f0;
}

.detail-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid #e2e8f0;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 50px;
    padding-left: 5%;
    padding-right: 5%;
}
.detail-nav-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: #fff;
    padding: 18px 22px;
    border-radius: 14px;
    border: 1px solid #eef2f7;
    transition: all 0.28s ease;
}
.detail-nav-item:hover {
    border-color: #dbeafe;
    box-shadow: 0 12px 28px -16px rgba(30, 64, 175, 0.18);
    transform: translateY(-3px);
}
.detail-nav-item:nth-child(2) { text-align: right; }
.detail-nav-item .label {
    font-size: 13px;
    color: #94a3b8;
    font-weight: 600;
}
.detail-nav-item .label.disabled { color: #cbd5e1; }
.detail-nav-item a {
    color: #0f172a;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
}
.detail-nav-item a:hover { color: #1e40af; }
.detail-nav-item .no-nav {
    color: #cbd5e1;
    font-size: 14px;
}

/* ==================== 15. 产品详情 ==================== */
.detail-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}
.detail-img img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 20px 45px -20px rgba(15, 23, 42, 0.15);
}
.detail-info h1 {
    font-size: 28px;
    color: #0f172a;
    margin-bottom: 15px;
    font-weight: 800;
}
.detail-info .summary {
    color: #64748b;
    margin-bottom: 20px;
    font-size: 16px;
}
.detail-info .content {
    color: #475569;
    line-height: 1.8;
    margin-bottom: 30px;
}
.detail-info > .btn-primary,
.detail-info > .btn-outline {
    margin-right: 14px;
    margin-top: 10px;
    display: inline-block;
    vertical-align: middle;
}

/* 主图 + 放大镜 */
.main-image-wrap {
    position: relative;
    width: 100%;
    min-height: 400px;
    max-height: 600px;
    background: #f8fafc;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.main-image-wrap #mainImage {
    max-width: 100%;
    max-height: 600px;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
    border-radius: 12px;
}
.zoom-lens {
    position: absolute;
    border: 2px solid #1e40af;
    background: rgba(30, 64, 175, 0.1);
    width: 150px;
    height: 150px;
    cursor: crosshair;
    display: none;
    pointer-events: none;
    border-radius: 4px;
}
.zoom-result {
    position: fixed;
    right: 20%;
    top: 25%;
    width: 680px;
    height: 580px;
    border: 1px solid #466cf5;
    border-radius: 12px;
    background-color: #fff;
    background-repeat: no-repeat;
    display: none;
    z-index: 1000;
    box-shadow: 0 15px 40px rgba(15, 23, 42, 0.25);
    pointer-events: none;
}
.zoom-result::after {
    position: absolute;
    top: -12px;
    left: 12px;
    background: #1e40af;
    color: #fff;
    font-size: 11px;
    border: 0.5px solid #1e40af;
    padding: 3px 12px;
    border-radius: 12px;
    font-weight: 600;
}
.thumb-list {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    flex-wrap: wrap;
    justify-content: flex-start;
}
.thumb-list img {
    width: 72px;
    height: 72px;
    object-fit: cover;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    background: #f1f5f9;
}
.thumb-list img:hover { border-color: #93c5fd; }
.thumb-list img.active {
    border-color: #1e40af;
    box-shadow: 0 0 0 2px rgba(30, 64, 175, 0.15);
}

/* 主图左右箭头 */
.img-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid #e2e8f0;
    color: #1e40af;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.28s ease;
    z-index: 10;
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.18);
    padding: 0;
}
.main-image-wrap:hover .img-arrow { opacity: 1; }
.img-arrow:hover {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    border-color: transparent;
    transform: translateY(-50%) scale(1.1);
}
.img-arrow-prev { left: 16px; }
.img-arrow-next { right: 16px; }

/* ==================== 16. 询盘区块 / 表单 ==================== */
.inquiry-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    padding: 80px 5%;
    color: #fff;
    position: relative;
    overflow: hidden;
    margin-bottom: 100px;
}
.inquiry-section::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.12), transparent 70%);
    pointer-events: none;
}
.inquiry-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1100px;
    margin: 0 auto;
    align-items: start;
    position: relative;
    z-index: 1;
}
.inquiry-text h2 {
    font-size: 34px;
    margin-bottom: 20px;
    font-weight: 800;
}
.inquiry-text p {
    color: #bfdbfe;
    line-height: 1.8;
    margin-bottom: 35px;
    font-size: 15px;
}
.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 22px;
    color: #e2e8f0;
    font-size: 15px;
}
.contact-item .icon {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
    transition: all 0.28s ease;
}
.contact-item:hover .icon {
    background: rgba(59, 130, 246, 0.2);
    border-color: rgba(59, 130, 246, 0.4);
    transform: scale(1.08);
}
.inquiry-form {
    background: #fff;
    padding: 45px;
    border-radius: 20px;
    color: #1e293b;
    box-shadow: 0 30px 70px -24px rgba(15, 23, 42, 0.4);
}
.inquiry-form h3 {
    font-size: 22px;
    color: #0f172a;
    margin-bottom: 8px;
    text-align: center;
    font-weight: 800;
}
.inquiry-form .sub {
    text-align: center;
    color: #64748b;
    font-size: 14px;
    margin-bottom: 30px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: #475569;
    margin-bottom: 8px;
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 13px 15px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    font-size: 14px;
    outline: none;
    transition: all 0.28s ease;
    background: #f8fafc;
    color: #1e293b;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: #3b82f6;
    background: #fff;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}
.form-group textarea {
    height: 110px;
    resize: vertical;
}
.form-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.28s ease;
    box-shadow: 0 10px 24px -10px rgba(30, 64, 175, 0.55);
    position: relative;
    overflow: hidden;
}
.form-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -80%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transform: skewX(-20deg);
    transition: left 0.55s ease;
}
.form-btn:hover {
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
    transform: translateY(-2px);
    box-shadow: 0 16px 32px -12px rgba(30, 64, 175, 0.65);
}
.form-btn:hover::after { left: 120%; }

/* ==================== 17. 关于我们 ==================== */
.about-banner {
    min-height: 380px;
    background-size: cover;
    background-position: center;
    background-color: #0f172a;
    position: relative;
    display: none;
    align-items: center;
    justify-content: center;
}
.about-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.75), rgba(30, 64, 175, 0.55));
}
.about-banner-mask {
    width: 100%;
    padding: 120px 5% 60px;
    text-align: center;
    color: #fff;
    position: relative;
    z-index: 1;
}
.about-banner-mask h1 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 12px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.about-banner-mask p {
    font-size: 17px;
    color: #bfdbfe;
}
.about-content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 1.9;
    color: #334155;
}
.about-content h2 {
    font-size: 24px;
    color: #0f172a;
    margin: 40px 0 18px;
    padding-left: 14px;
    border-left: 4px solid #1e40af;
    font-weight: 800;
}
.about-content h2:first-child { margin-top: 0; }
.about-content p { margin-bottom: 16px; }
.about-content ul {
    padding-left: 0;
    list-style: none;
    margin-bottom: 20px;
}
.about-content ul li {
    padding: 12px 18px;
    background: #f8fafc;
    border-radius: 10px;
    margin-bottom: 10px;
    border-left: 3px solid #dbeafe;
    transition: all 0.25s ease;
}
.about-content ul li:hover {
    background: #eff6ff;
    border-left-color: #1e40af;
    transform: translateX(4px);
}
.about-content ul li strong {
    color: #1e40af;
    margin-right: 6px;
}
.about-content strong { color: #0f172a; }
.about-btns {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 30px;
}
.about-btns .btn-primary,
.about-btns .btn-outline { margin: 0; flex: 0 0 auto; }

/* ==================== 18. 在线留言 / 联系页 ==================== */
.message-wrap {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 40px;
    max-width: 1150px;
    margin: 0 auto;
}
.message-info-card {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    border: 1px solid #eef2f7;
    box-shadow: 0 10px 30px -12px rgba(15, 23, 42, 0.1);
    height: fit-content;
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.message-info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 24px 50px -20px rgba(15, 23, 42, 0.16);
}
.message-info-card h2 {
    font-size: 24px;
    color: #0f172a;
    margin-bottom: 10px;
    font-weight: 800;
}
.message-info-card .sub {
    color: #64748b;
    font-size: 14px;
    margin-bottom: 30px;
    line-height: 1.6;
}
.message-info-card .contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 24px;
    color: #334155;
}
.message-info-card .contact-item:last-child { margin-bottom: 0; }
.message-info-card .contact-item .icon {
    width: 46px;
    height: 46px;
    background: #eff6ff;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    border: 1px solid #dbeafe;
    transition: all 0.28s ease;
}
.message-info-card .contact-item:hover .icon {
    background: #1e40af;
    color: #fff;
    border-color: #1e40af;
    transform: scale(1.08);
}
.message-info-card .contact-item strong {
    color: #0f172a;
    font-size: 14px;
    display: block;
    margin-bottom: 4px;
    font-weight: 700;
}
.message-info-card .contact-item span {
    color: #475569;
    font-size: 14px;
    line-height: 1.6;
    word-break: break-all;
}
.message-form-wrap {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    border: 1px solid #eef2f7;
    box-shadow: 0 10px 30px -12px rgba(15, 23, 42, 0.1);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.message-form-wrap:hover {
    transform: translateY(-5px);
    box-shadow: 0 24px 50px -20px rgba(15, 23, 42, 0.16);
}
.message-form-wrap h3 {
    font-size: 22px;
    color: #0f172a;
    margin-bottom: 8px;
    font-weight: 800;
}
.message-form-wrap .sub {
    color: #64748b;
    font-size: 14px;
    margin-bottom: 28px;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.contact-card {
    background: #fff;
    padding: 30px 22px;
    border-radius: 18px;
    border: 1px solid #eef2f7;
    text-align: center;
    transition: all 0.32s ease;
}
.contact-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 22px 44px -20px rgba(15, 23, 42, 0.16);
    border-color: #dbeafe;
}
.contact-card .icon {
    width: 54px;
    height: 54px;
    margin: 0 auto 15px;
    background: #eff6ff;
    border: 1px solid #dbeafe;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: all 0.32s ease;
}
.contact-card:hover .icon {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    border-color: transparent;
    transform: scale(1.08) rotate(-4deg);
    box-shadow: 0 10px 22px -10px rgba(30, 64, 175, 0.55);
}
.contact-card h3 {
    font-size: 15px;
    color: #0f172a;
    margin-bottom: 8px;
    font-weight: 700;
}
.contact-card p {
    color: #1e40af;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
    word-break: break-all;
}
.contact-card span {
    color: #94a3b8;
    font-size: 12px;
}
.contact-main {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 40px;
    max-width: 1150px;
    margin: 0 auto;
}
.contact-side-card,
.contact-form-wrap {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    border: 1px solid #eef2f7;
    box-shadow: 0 10px 30px -12px rgba(15, 23, 42, 0.1);
}
.contact-side-card { border-top: 4px solid #1e40af; }
.contact-form-wrap { border-top: 4px solid #1e40af; }
.contact-side-card h2 {
    font-size: 24px;
    color: #0f172a;
    margin-bottom: 6px;
    font-weight: 800;
}
.contact-side-card .sub {
    color: #64748b;
    font-size: 14px;
    margin-bottom: 25px;
}
.contact-side-card .info-item {
    padding: 12px 0;
    border-bottom: 1px dashed #e2e8f0;
    font-size: 14px;
    color: #334155;
    line-height: 1.6;
}
.contact-side-card .info-item:last-of-type { border-bottom: none; }
.contact-side-card .info-item .label {
    display: inline-block;
    width: 70px;
    color: #94a3b8;
    font-size: 13px;
}
.contact-side-card .info-item strong {
    color: #0f172a;
    font-size: 14px;
    font-weight: 700;
}
.contact-map {
    margin-top: 20px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}
.map-tip {
    margin-top: 10px;
    font-size: 13px;
    color: #64748b;
}
.contact-form-wrap h3 {
    font-size: 22px;
    color: #0f172a;
    margin-bottom: 8px;
    font-weight: 800;
}
.contact-form-wrap .sub {
    color: #64748b;
    font-size: 14px;
    margin-bottom: 28px;
}

/* ==================== 19. 首页主区域 ==================== */
.main-section {
    padding: 25px 0;
    background: #fff;
}
.main-grid {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 20px;
    align-items: stretch;
}

/* 左侧分类树 */
.sidebar-category {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e2e8f0;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
    display: flex;
    flex-direction: column;
    height: 100%;
}
.sidebar-title {
    background: #1e40af;
    color: #fff;
    font-size: 16px;
    padding: 16px 20px;
    font-weight: 700;
    margin: 0;
    letter-spacing: 0.5px;
}
.category-tree {
    list-style: none;
    padding: 0;
    margin: 0;
}
.cat-level-0 { border-bottom: 1px solid #f1f5f9; }
.cat-level-0:last-child { border-bottom: none; }

.cat-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #fff;
    transition: background 0.2s;
}
.cat-row:hover { background: #eff6ff; }

.cat-link {
    flex: 1;
    padding: 14px 20px;
    color: #0f172a;
    font-size: 14px;
    font-weight: 600;
    display: block;
    text-decoration: none;
    transition: color 0.2s;
    line-height: 1.4;
}
.cat-link:hover { color: #1e40af; }

.cat-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    margin-right: 12px;
    background: #eff6ff;
    border: 1px solid #dbeafe;
    border-radius: 50%;
    cursor: pointer;
    color: #1e40af;
    font-size: 14px;
    font-weight: 700;
    transition: all 0.28s ease;
    user-select: none;
    flex-shrink: 0;
}
.cat-toggle:hover {
    background: #1e40af;
    border-color: #1e40af;
    color: #fff;
    transform: scale(1.08);
    box-shadow: 0 4px 12px -4px rgba(30, 64, 175, 0.5);
}
.cat-toggle.expanded {
    background: #1e40af;
    border-color: #1e40af;
    color: #fff;
}
.cat-toggle .plus {
    font-size: 18px;
    font-weight: 300;
    line-height: 1;
    transition: transform 0.3s ease;
    display: inline-block;
}
.cat-toggle.expanded .plus { transform: rotate(45deg); }

.sub-category {
    list-style: none;
    padding: 0;
    margin: 0;
    background: #f8fafc;
    display: none;
}
.sub-category.show { display: block; }
.sub-category .cat-level-1 { border-bottom: 1px solid #f1f5f9; }
.sub-category .cat-level-1:last-child { border-bottom: none; }
.sub-category .cat-level-1 a {
    display: block;
    padding: 11px 20px 11px 40px;
    color: #475569;
    font-size: 13px;
    text-decoration: none;
    transition: all 0.2s;
    position: relative;
}
.sub-category .cat-level-1 a::before {
    content: '·';
    position: absolute;
    left: 22px;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    font-size: 16px;
    font-weight: bold;
}
.sub-category .cat-level-1 a:hover {
    background: #eff6ff;
    color: #1e40af;
    padding-left: 44px;
}

.sidebar-footer {
    margin-top: auto;
    padding: 20px;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.sidebar-footer-title {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 6px;
}
.sidebar-footer-desc {
    font-size: 12px;
    color: #dbeafe;
    margin-bottom: 15px;
    line-height: 1.6;
}
.sidebar-footer-btn {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.25);
}
.sidebar-footer-btn:hover { background: #fff; color: #1e40af; }

.sidebar-hot {
    padding: 15px;
    border-top: 1px solid #f1f5f9;
}
.sidebar-hot-title {
    font-size: 14px;
    color: #fff;
    font-weight: 700;
    margin-bottom: 12px;
    padding: 10px 14px;
    background: #1e40af;
    border-left: 3px solid #1e40af;
    border-radius: 6px;
    line-height: 1.4;
}
.hot-list { list-style: none; padding: 0; margin: 0; }
.hot-list li { margin-bottom: 12px; }
.hot-list li a {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.2s;
}
.hot-list li a:hover { background: #eff6ff; }
.hot-list li img {
    width: 50px;
    height: 50px;
    border-radius: 6px;
    object-fit: cover;
    flex-shrink: 0;
}
.hot-list .hot-title {
    font-size: 13px;
    color: #1e293b;
    font-weight: 600;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.hot-list .hot-price {
    display: inline-block;
    font-size: 11px;
    color: #1e40af;
    margin-top: 6px;
    padding: 3px 10px;
    background: #eff6ff;
    border: 1px solid #dbeafe;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.25s ease;
    line-height: 1.4;
}
.hot-list li a:hover .hot-price {
    background: #1e40af;
    color: #fff;
    border-color: #1e40af;
    transform: translateX(2px);
    box-shadow: 0 4px 10px -4px rgba(30, 64, 175, 0.5);
}

.right-area {
    display: flex;
    flex-direction: column;
    gap: 20px;
    min-width: 0;
}

/* ==================== 20. 横幅轮播 ==================== */
.banner-area,
.banner-strip,
.bannerProducts-strip {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    background: #f1f5f9;
    min-height: 160px;
}
.banner-strip { height: 450px; }
.bannerProducts-strip { height: 160px; }

.swiper-banner {
    position: relative;
    width: 100%;
    height: 100%;
}
.banner-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease, visibility 0.6s;
}
.banner-item.active {
    opacity: 1;
    visibility: visible;
    z-index: 1;
}
.banner-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.banner-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 160px;
    color: #94a3b8;
}

.banner-dots {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 20px;
    display: flex;
    gap: 12px;
    z-index: 10;
    justify-content: center;
}
.banner-dots .dot {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.6);
    border: 2px solid rgba(255, 255, 255, 0.85);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}
.banner-dots .dot:hover {
    background: #fbaf08;
    transform: scale(1.15);
}
.banner-dots .dot.active {
    background: #fbaf08;
    width: 30px;
    border-radius: 20px;
    border-color: #fff;
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.6);
}

.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(0, 0, 0, 0.08);
    color: #0f172a;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.28s ease;
    z-index: 10;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
    outline: none;
    padding: 0;
    user-select: none;
}
.banner-strip:hover .banner-arrow,
.bannerProducts-strip:hover .banner-arrow {
    opacity: 1;
    visibility: visible;
}
.banner-arrow:hover {
    background: #1e40af;
    color: #fff;
    border-color: #1e40af;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 6px 20px rgba(30, 64, 175, 0.4);
}
.banner-prev { left: 16px; }
.banner-next { right: 16px; }

/* ==================== 21. 首页产品区 ==================== */
.product-area {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    border: 1px solid #e2e8f0;
}
.product-area .section-title-bar {
    background: #1e40af;
    color: #fff;
    padding: 12px 20px;
    border-radius: 6px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.product-area .section-title-bar h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
}
.product-area .section-title-bar .more-link {
    color: #dbeafe;
    font-size: 14px;
}

.product-grid-3 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.product-grid-3 .product-card-2 {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s;
}
.product-grid-3 .product-card-2:hover {
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.1);
    transform: translateY(-4px);
    border-color: #bfdbfe;
}
.product-grid-3 .product-card-2 .img {
    height: 180px;
    overflow: hidden;
    background: #f1f5f9;
}
.product-grid-3 .product-card-2 .img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.product-grid-3 .product-card-2 h4 {
    padding: 12px;
    margin: 0;
    font-size: 14px;
    color: #1e293b;
    text-align: center;
    font-weight: 600;
    line-height: 1.4;
}
.product-grid-3 .product-card-2:hover h4 { color: #1e40af; }

.products-section {
    padding: 40px 0;
    background: #f6f9fe;
}
.section-title-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    padding: 14px 24px;
    border-radius: 14px;
    margin-bottom: 20px;
    box-shadow: 0 12px 28px -14px rgba(30, 64, 175, 0.5);
}
.section-title-bar h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
}
.section-title-bar .more-link {
    color: #dbeafe;
    font-size: 14px;
    transition: all 0.25s ease;
}
.section-title-bar .more-link:hover {
    color: #fff;
    transform: translateX(4px);
}
.product-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.product-card-2 {
    background: #fff;
    border: 1px solid #eef2f7;
    border-radius: 14px;
    overflow: hidden;
    transition: all 0.32s ease;
}
.product-card-2:hover {
    box-shadow: 0 22px 44px -20px rgba(15, 23, 42, 0.18);
    transform: translateY(-6px);
    border-color: #dbeafe;
}
.product-card-2 .img {
    height: 200px;
    overflow: hidden;
    background: #f1f5f9;
}
.product-card-2 .img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.product-card-2:hover .img img { transform: scale(1.08); }
.product-card-2 h4 {
    padding: 15px;
    margin: 0;
    font-size: 14px;
    color: #1e293b;
    text-align: center;
    font-weight: 600;
    line-height: 1.4;
    transition: color 0.25s ease;
}
.product-card-2:hover h4 { color: #1e40af; }

/* ==================== 22. 社交栏 / 浮动工具栏 ==================== */
.social-bar {
    display: none;
    justify-content: space-around;
    align-items: center;
    background: linear-gradient(135deg, #0f172a, #1e293b);
    padding: 8px 0 calc(8px + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid #1e293b;
    width: 100%;
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: 999;
    box-shadow: 0 -4px 20px -8px rgba(15, 23, 42, 0.5);
}
body.is-mobile .social-bar { display: flex; }
body.is-pc .social-bar { display: none; }
body.is-mobile { padding-bottom: 68px; }

.social-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: #cbd5e1;
    font-size: 11px;
    font-weight: 500;
    padding: 4px 0;
    transition: color 0.28s ease;
    text-decoration: none;
    line-height: 1.2;
}
.social-item svg {
    width: 22px;
    height: 22px;
    transition: transform 0.28s ease;
    flex-shrink: 0;
}
.social-item.youtube svg   { color: #ff0000; }
.social-item.facebook svg  { color: #1877f2; }
.social-item.whatsapp svg  { color: #25d366; }
.social-item.instagram svg { color: #e4405f; }
.social-item.linkedin svg  { color: #0a66c2; }
.social-item.tiktok svg    { color: #ffffff; }
.social-item.home svg      { color: #f59e0b; }
.social-item.phone svg     { color: #38bdf8; }
.social-item.email svg     { color: #60a5fa; }
.social-item:hover { color: #fff; }
.social-item:hover svg { transform: translateY(-2px) scale(1.1); }

.float-toolbar {
    position: fixed;
    right: 20px;
    bottom: 80px;
    z-index: 999;
    display: none;
    flex-direction: column;
    gap: 10px;
}
body.is-pc .float-toolbar { display: flex; }
body.is-mobile .float-toolbar { display: none; }

.float-btn {
    position: relative;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(15, 23, 42, 0.15);
    transition: all 0.25s ease;
    text-decoration: none;
}
.float-btn.youtube   { color: #ff0000; }
.float-btn.phone     { color: #0ea5e9; }
.float-btn.facebook  { color: #1877f2; }
.float-btn.whatsapp  { color: #25d366; }
.float-btn.instagram { color: #e4405f; }
.float-btn.linkedin  { color: #0a66c2; }
.float-btn.tiktok    { color: #0f172a; }
.float-btn.email     { color: #3b82f6; }
.float-btn.backtop   { color: #1e40af; }
.float-btn:hover {
    transform: translateY(-4px) scale(1.08);
    box-shadow: 0 8px 25px rgba(15, 23, 42, 0.25);
    filter: brightness(1.1);
}
.float-tip {
    position: absolute;
    right: calc(100% + 12px);
    top: 50%;
    transform: translateY(-50%) translateX(8px);
    background: #0f172a;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 8px 14px;
    border-radius: 8px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
    pointer-events: auto;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.15);
    user-select: all;
    cursor: text;
}
.float-tip::before {
    content: '';
    position: absolute;
    left: 100%;
    top: 0;
    width: 14px;
    height: 100%;
    background: transparent;
}
.float-tip::after {
    content: '';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: #0f172a;
}
.float-btn:hover .float-tip,
.float-btn .float-tip:hover {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(-8px);
}
.float-btn.youtube   .float-tip { background: #ff0000; }
.float-btn.youtube   .float-tip::after { border-left-color: #ff0000; }
.float-btn.phone     .float-tip { background: #0ea5e9; }
.float-btn.phone     .float-tip::after { border-left-color: #0ea5e9; }
.float-btn.facebook  .float-tip { background: #1877f2; }
.float-btn.facebook  .float-tip::after { border-left-color: #1877f2; }
.float-btn.whatsapp  .float-tip { background: #25d366; }
.float-btn.whatsapp  .float-tip::after { border-left-color: #25d366; }
.float-btn.instagram .float-tip { background: #e4405f; }
.float-btn.instagram .float-tip::after { border-left-color: #e4405f; }
.float-btn.linkedin  .float-tip { background: #0a66c2; }
.float-btn.linkedin  .float-tip::after { border-left-color: #0a66c2; }
.float-btn.tiktok    .float-tip { background: #0f172a; }
.float-btn.tiktok    .float-tip::after { border-left-color: #0f172a; }
.float-btn.email     .float-tip { background: #3b82f6; }
.float-btn.email     .float-tip::after { border-left-color: #3b82f6; }
.float-btn.backtop   .float-tip { background: #1e40af; }
.float-btn.backtop   .float-tip::after { border-left-color: #1e40af; }

/* ==================== 23. 页脚 ==================== */
footer {
    background: linear-gradient(180deg, #0f172a, #0b1120);
    padding: 60px 5% 30px;
    color: #94a3b8;
    font-size: 14px;
    position: relative;
}
footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.4), transparent);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    max-width: 420px;
    margin: 0 auto 40px;
}
.footer-col h4 {
    font-size: 15px;
    color: #fff;
    margin-bottom: 20px;
    font-weight: 700;
    position: relative;
    padding-bottom: 10px;
}
.footer-col h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, #1e40af, #f59e0b);
}
.footer-col p,
.footer-col a {
    color: #94a3b8;
    line-height: 2;
    display: block;
    transition: all 0.25s ease;
}
.footer-col a:hover {
    color: #60a5fa;
    transform: translateX(4px);
}
.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #1e293b;
    color: #64748b;
    font-size: 13px;
    max-width: 1200px;
    margin: 0 auto;
}

/* ==================== 24. 面包屑 ==================== */
.breadcrumb-wrap {
    background: #f6f9fe;
    border-bottom: 1px solid #eef2f7;
    padding: 14px 0;
}
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: #64748b;
    list-style: none;
    padding: 0;
    margin: 0;
}
.breadcrumb li {
    display: flex;
    align-items: center;
    gap: 8px;
}
.breadcrumb li::after {
    content: '›';
    color: #cbd5e1;
    font-size: 16px;
    margin-left: 8px;
}
.breadcrumb li:last-child::after { display: none; }
.breadcrumb a {
    color: #64748b;
    transition: color 0.25s ease;
}
.breadcrumb a:hover { color: #1e40af; }
.breadcrumb .current { color: #1e40af; font-weight: 700; }

/* ==================== 25. 业务联系人 ==================== */
.sales-contacts {
    margin-top: 30px;
    padding-top: 25px;
    border-top: 1px dashed rgba(255, 255, 255, 0.15);
}
.sales-title {
    font-size: 15px;
    color: #fff;
    font-weight: 700;
    margin-bottom: 18px;
    letter-spacing: 0.5px;
}
.sales-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.sales-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    padding: 16px 18px;
    transition: all 0.28s ease;
    backdrop-filter: blur(4px);
}
.sales-card:hover {
    background: rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.4);
    transform: translateY(-3px);
    box-shadow: 0 10px 24px -10px rgba(30, 64, 175, 0.5);
}
.sales-name {
    font-size: 15px;
    color: #fff;
    font-weight: 700;
    margin-bottom: 4px;
}
.sales-role {
    font-size: 11px;
    color: #93c5fd;
    margin-bottom: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}
.sales-card ul { list-style: none; padding: 0; margin: 0; }
.sales-card ul li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 12.5px;
    color: #cbd5e1;
    line-height: 1.7;
    margin-bottom: 6px;
    word-break: break-all;
}
.sales-card ul li:last-child { margin-bottom: 0; }
.sales-card ul li .label {
    display: inline-block;
    min-width: 55px;
    color: #94a3b8;
    flex-shrink: 0;
    font-size: 11.5px;
}
.sales-card ul li a {
    color: #bfdbfe;
    text-decoration: none;
    transition: color 0.2s;
}
.sales-card ul li a:hover {
    color: #fff;
    text-decoration: underline;
}

/* 浅色卡片（联系页 / 留言页） */
.message-info-card .sales-contacts,
.contact-side-card .sales-contacts {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px dashed #e2e8f0;
}
.message-info-card .sales-title,
.contact-side-card .sales-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    color: #0f172a;
    font-weight: 700;
    margin-bottom: 15px;
}
.message-info-card .sales-title-icon { font-size: 18px; }
.message-info-card .sales-grid,
.contact-side-card .sales-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.message-info-card .sales-card,
.contact-side-card .sales-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 14px 16px;
    transition: all 0.28s ease;
}
.message-info-card .sales-card:hover,
.contact-side-card .sales-card:hover {
    background: #eff6ff;
    border-color: #bfdbfe;
    transform: translateY(-3px);
    box-shadow: 0 10px 24px -12px rgba(30, 64, 175, 0.2);
}
.message-info-card .sales-name,
.contact-side-card .sales-name {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: #0f172a;
    font-weight: 700;
    margin-bottom: 4px;
}
.message-info-card .sales-avatar { font-size: 16px; line-height: 1; }
.message-info-card .sales-role,
.contact-side-card .sales-role {
    font-size: 11px;
    color: #1e40af;
    margin-bottom: 10px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}
.message-info-card .sales-card ul,
.contact-side-card .sales-card ul { list-style: none; padding: 0; margin: 0; }
.message-info-card .sales-card ul li,
.contact-side-card .sales-card ul li {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    font-size: 12px;
    color: #475569;
    line-height: 1.6;
    margin-bottom: 5px;
    word-break: break-word;
}
.message-info-card .sales-card ul li:last-child,
.contact-side-card .sales-card ul li:last-child { margin-bottom: 0; }
.message-info-card .sales-card ul li .label,
.contact-side-card .sales-card ul li .label {
    display: inline-flex;
    align-items: center;
    min-width: 75px;
    color: #64748b;
    flex-shrink: 0;
    font-size: 11.5px;
    gap: 3px;
}
.message-info-card .sales-card ul li a,
.contact-side-card .sales-card ul li a {
    color: #1e40af;
    text-decoration: none;
    transition: color 0.2s;
    word-break: break-all;
}
.message-info-card .sales-card ul li a:hover,
.contact-side-card .sales-card ul li a:hover {
    color: #1e3a8a;
    text-decoration: underline;
}

/* ==================== 26. 新闻相册 / 灯箱 ==================== */
.news-gallery {
    margin: 40px 0;
    padding-top: 30px;
    border-top: 1px solid #e2e8f0;
}
.gallery-title {
    font-size: 18px;
    color: #0f172a;
    font-weight: 700;
    margin-bottom: 20px;
    padding-left: 14px;
    border-left: 4px solid #1e40af;
}
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}
.gallery-item {
    border-radius: 10px;
    overflow: hidden;
    background: #f1f5f9;
    cursor: pointer;
    transition: all 0.3s ease;
    aspect-ratio: 4 / 3;
}
.gallery-item:hover {
    transform: scale(1.03);
    box-shadow: 0 12px 30px -12px rgba(30, 64, 175, 0.3);
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; display: block; }

.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    padding: 40px;
}
.lightbox.show { display: flex; }
.lightbox img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: #fff;
    font-size: 40px;
    cursor: pointer;
    line-height: 1;
}
.lightbox-close:hover { opacity: 0.7; }
.lightbox-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #fff;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.28s ease;
    backdrop-filter: blur(6px);
    z-index: 10;
    padding: 0;
    outline: none;
}
.lightbox-arrow:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-50%) scale(1.1);
    border-color: rgba(255, 255, 255, 0.5);
}
.lightbox-prev { left: 30px; }
.lightbox-next { right: 30px; }

/* ==========================================================
   27. 响应式（完美修复版：PC端隐藏移动端菜单）
   ========================================================== */

/* ★ 核心修复：PC端强制隐藏“移动端专属菜单”，防止撑乱导航栏 */
.mobile-only-menu {
    display: none !important;
}

/* ---------- ≤1200px ---------- */
@media (max-width: 1200px) {
    .product-grid-3 { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- ≤992px ---------- */
@media (max-width: 992px) {
    .hero { grid-template-columns: 1fr; text-align: center; }
    .hero-btns { justify-content: center; }
    .stats-grid,
    .app-grid,
    .cert-grid { grid-template-columns: repeat(2, 1fr); }
    .service-grid,
    .news-grid { grid-template-columns: 1fr; }
    .inquiry-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .news-list-grid { grid-template-columns: repeat(2, 1fr); }
    .main-grid { grid-template-columns: 1fr; }
    .product-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .contact-cards { grid-template-columns: repeat(2, 1fr); }
    .contact-main { grid-template-columns: 1fr; gap: 30px; }
    .message-wrap { grid-template-columns: 1fr; gap: 30px; }

    .zoom-result,
    .zoom-lens { display: none !important; }
    .main-image-wrap {
        min-height: 280px;
        max-height: 400px;
    }
    .main-image-wrap #mainImage { max-height: 400px; }
    .img-arrow { opacity: 1; width: 42px; height: 42px; }
    .img-arrow-prev { left: 8px; }
    .img-arrow-next { right: 8px; }
    
    .sidebar-category { margin-bottom: 20px; }
}

/* ---------- ≤768px：移动端核心适配 ---------- */
@media screen and (max-width: 768px) {

    /* ===== 27.1 导航栏 ===== */
    .nav-inner {
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
        gap: 6px !important;
        padding: 8px 10px !important;
        flex-wrap: nowrap !important;
        position: relative;
        z-index: 1001;
    }
    .logo {
        flex: 1 1 auto !important;
        min-width: 0 !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        gap: 3px !important;
        overflow: hidden !important;
    }
    .logo-img { height: 60px !important; width: auto !important; flex-shrink: 0 !important; }
    .logo-text {
        display: block !important; width: 100% !important; font-size: 11px !important;
        font-weight: 700 !important; line-height: 1.2 !important; letter-spacing: -0.2px !important;
        white-space: nowrap !important; overflow: hidden !important; text-overflow: ellipsis !important;
        text-align: center !important; color: #0f172a !important;
    }
    .nav-right { flex: 0 0 auto !important; gap: 5px !important; align-items: center !important; }
    .nav-right .nav-btn {
        display: inline-flex !important; align-items: center !important; justify-content: center !important;
        padding: 8px !important; font-size: 10px !important; font-weight: 700 !important;
        line-height: 1.1 !important; border-radius: 6px !important; white-space: nowrap !important;
        box-shadow: 0 3px 8px -3px rgba(30, 64, 175, 0.4) !important;
    }
    .menu-toggle {
        display: flex !important; width: 30px !important; height: 30px !important;
        padding: 5px !important; flex-shrink: 0 !important; z-index: 1002 !important;background:#FFF!important;
    }
    .menu-toggle span { width: 18px !important; }

    /* 全屏抽屉导航 */
    .nav-links {
        position: fixed; top: 0; left: 0; right: 0; bottom: 0;
        width: 100%; height: 100vh;
        background: linear-gradient(160deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 64, 175, 0.88) 45%, rgba(6, 182, 212, 0.82) 100%);
        backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
        flex-direction: column; justify-content: flex-start; align-items: stretch; gap: 0;
        padding: 80px 0 40px; margin: 0;
        transform: translateX(-100%);
        transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
        overflow-y: auto; z-index: 999;
        box-shadow: 4px 0 24px rgba(15, 23, 42, 0.35);
    }
    .nav-links.open { transform: translateX(0); }
    .nav-links a {
        display: flex; justify-content: space-between; align-items: center; width: 100%;
        padding: 18px 30px; font-size: 16px; font-weight: 600; color: #e2e8f0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08); box-sizing: border-box;
        transition: all 0.25s ease;
    }
    .nav-links a::after { display: none; }
    .nav-links a:hover, .nav-links a:active {
        background: rgba(59, 130, 246, 0.18); color: #fff; padding-left: 36px;
    }

    /* ===== 27.2 移动端菜单专属分类树（PC端不显示，仅在移动端显示） ===== */
    .mobile-only-menu {
        display: block !important;
    }
    
    .nav-links .mobile-only-menu {
        background: transparent !important;
        border: none !important;
        box-shadow: none !important;
        margin-top: 10px;
        margin-bottom: 0;
        width: 100%;
    }
    
    .nav-links .sidebar-title {
        background: transparent !important;
        color: #fff !important;
        font-size: 15px;
        padding: 10px 30px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 0;
    }

    .nav-links .cat-row {
        background: transparent !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
    }
    .nav-links .cat-row:hover { background: rgba(59, 130, 246, 0.18) !important; }
    .nav-links .cat-link {
        color: #e2e8f0 !important;
        font-size: 15px;
        padding: 15px 30px;
        border-bottom: none !important;
    }
    .nav-links .cat-link:hover, .nav-links .cat-link.active { color: #fff !important; }

    /* ★ 移动端展开/收起图标 */
    .nav-links .cat-toggle {
        display: flex !important;
        width: 34px !important;
        height: 34px !important;
        margin-right: 20px !important;
        background: rgba(255, 255, 255, 0.15) !important;
        border: 1px solid rgba(255, 255, 255, 0.25) !important;
        color: #fff !important;
        border-radius: 50% !important;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }
    .nav-links .cat-toggle.expanded {
        background: #3b82f6 !important;
        border-color: #3b82f6 !important;
    }
    .nav-links .cat-toggle .plus {
        font-size: 16px !important;
        font-weight: 400 !important;
        line-height: 1 !important;
        transform: none;
        color: #fff !important;
    }

    .nav-links .sub-category {
        background: rgba(0, 0, 0, 0.15) !important;
    }
    .nav-links .sub-category .cat-level-1 a {
        color: #cbd5e1 !important;
        padding-left: 50px !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05) !important;
    }
    .nav-links .sub-category .cat-level-1 a::before {
        left: 32px !important; color: #64748b !important;
    }
    .nav-links .sub-category .cat-level-1 a:hover {
        background: rgba(59, 130, 246, 0.2) !important;
        color: #fff !important;
        padding-left: 54px !important;
    }
    .nav-links .sub-category .cat-level-1 a.active {
        color: #fff !important;
        font-weight: 700;
    }

    /* 移动端主内容区隐藏侧边栏（PC端的那个） */
    .sidebar-category:not(.mobile-only-menu) { display: none !important; }

    /* ===== 27.3 分页横向滚动修复 ===== */
    .pagination-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        width: 100%;
        padding-bottom: 15px;
        text-align: center; 
    }
    .pagination-wrap::-webkit-scrollbar { display: none; }
    .pagination-wrap .pagination {
        display: inline-flex;
        flex-wrap: nowrap;
        white-space: nowrap;
        gap: 6px;
    }
    .pagination-wrap .pagination li a,
    .pagination-wrap .pagination li span {
        padding: 6px 12px;
        font-size: 13px;
    }

    /* ===== 27.4 其余页面组件适配 ===== */
    .hero-text h1 { font-size: 32px; }
    .stats-grid, .app-grid, .cert-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .news-list-grid { grid-template-columns: 1fr; }
    .detail-wrap { grid-template-columns: 1fr; }
    .contact-cards { grid-template-columns: 1fr; }
    .detail-nav { grid-template-columns: 1fr; gap: 20px; }
    .detail-nav-item:nth-child(2) { text-align: left; }
    .about-banner-mask h1 { font-size: 28px; }
    .about-content h2 { font-size: 20px; }
    .message-info-card, .message-form-wrap { padding: 25px; }
    .contact-side-card, .contact-form-wrap { padding: 25px; }
    .container { padding: 0 20px; }
    .banner-strip { height: 200px; }
    .bannerProducts-strip { height: 140px; }
    .float-toolbar { display: none !important; }

    /* 轮播箭头 */
    .banner-arrow {
        width: 38px; height: 38px; font-size: 16px;
        opacity: 1; visibility: visible; background: rgba(255, 255, 255, 0.75);
    }
    .banner-prev { left: 8px; }
    .banner-next { right: 8px; }

    /* 灯箱 */
    .lightbox-arrow { width: 44px; height: 44px; font-size: 20px; }
    .lightbox-prev { left: 15px; }
    .lightbox-next { right: 15px; }
    .lightbox-close { font-size: 32px; top: 15px; right: 20px; }

    /* 产品网格一行两个 */
    .product-grid-3, .product-grid-4 {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px !important;
    }
    .product-grid-3 .product-card-2, .product-grid-4 .product-card-2 {
        width: auto !important; max-width: none !important;
    }
    .product-grid-3 .product-card-2 .img, .product-grid-4 .product-card-2 .img {
        height: 140px !important;
    }
    .product-grid-3 .product-card-2 h4, .product-grid-4 .product-card-2 h4 {
        padding: 8px !important; font-size: 12px !important; line-height: 1.3 !important;
    }

    /* 业务联系人单列 */
    .sales-grid,
    .message-info-card .sales-grid,
    .contact-side-card .sales-grid {
        grid-template-columns: 1fr !important; gap: 12px !important;
    }
    .sales-card ul li,
    .message-info-card .sales-card ul li,
    .contact-side-card .sales-card ul li {
        display: block !important; font-size: 13px !important; line-height: 1.7 !important;
        margin-bottom: 8px !important; word-break: break-all !important; overflow-wrap: anywhere !important;
    }
    .sales-card ul li .label,
    .message-info-card .sales-card ul li .label,
    .contact-side-card .sales-card ul li .label {
        display: inline !important; min-width: 0 !important; width: auto !important;
        margin-right: 8px !important; font-weight: 700 !important; color: #64748b !important;
    }
    .sales-card ul li .label::after,
    .message-info-card .sales-card ul li .label::after,
    .contact-side-card .sales-card ul li .label::after { content: ':'; }
    .sales-card ul li a, .message-info-card .sales-card ul li a, .contact-side-card .sales-card ul li a {
        word-break: break-all !important; overflow-wrap: anywhere !important;
    }
    .sales-card, .message-info-card .sales-card, .contact-side-card .sales-card {
        padding: 12px 14px !important;
    }
}

/* ---------- ≤480px ---------- */
@media (max-width: 480px) {
    .container { padding: 0 15px; }
    .section { padding: 50px 15px; }
    .hero { padding: 50px 5%; }
    .page-header { padding: 100px 5% 50px; }
    .page-header h1 { font-size: 28px; }
    .banner-strip { height: 160px; }
    .pagination-wrap { padding-bottom: 10px; }

    .product-grid-3 .product-card-2 .img,
    .product-grid-4 .product-card-2 .img { height: 120px !important; }
    .product-grid-3 .product-card-2 h4,
    .product-grid-4 .product-card-2 h4 {
        font-size: 11px !important; padding: 6px !important;
    }
}

/* ---------- ≤360px ---------- */
@media (max-width: 360px) {
    .logo-img { height: 32px !important; }
    .logo-text { font-size: 10px !important; }
    .nav-right .nav-btn { padding: 3px 6px !important; font-size: 9px !important; }
}
/* ==========================================================
   28. 移动端菜单分类树专属样式 (深色背景适配)
   ========================================================== */

/* PC端绝对隐藏移动端专属菜单，防止撑乱布局 */
.mobile-only-menu {
    display: none !important;
}

@media (max-width: 768px) {
    /* 移动端允许显示 */
    .mobile-only-menu {
        display: block !important;
        background: transparent !important;
        border: none !important;
        box-shadow: none !important;
        width: 100%;
        margin-top: 10px;
    }
    
    /* 分类树标题 */
    .mobile-only-menu .sidebar-title {
        background: transparent !important;
        color: #fff !important;
        font-size: 15px;
        padding: 15px 30px 10px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 0;
    }

    /* 一级分类行 */
    .mobile-only-menu .cat-row {
        background: transparent !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    .mobile-only-menu .cat-row:hover {
        background: rgba(59, 130, 246, 0.18) !important;
    }
    .mobile-only-menu .cat-link {
        flex: 1;
        color: #e2e8f0 !important;
        font-size: 15px;
        padding: 15px 30px;
    }
    .mobile-only-menu .cat-link:hover, 
    .mobile-only-menu .cat-link.active {
        color: #fff !important;
    }

    /* 展开/收起图标 */
    .mobile-only-menu .cat-toggle {
        display: flex !important;
        width: 34px !important;
        height: 34px !important;
        margin-right: 20px !important;
        background: rgba(255, 255, 255, 0.15) !important;
        border: 1px solid rgba(255, 255, 255, 0.25) !important;
        color: #fff !important;
        border-radius: 50% !important;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        cursor: pointer;
    }
    .mobile-only-menu .cat-toggle.expanded {
        background: #3b82f6 !important;
        border-color: #3b82f6 !important;
    }
    .mobile-only-menu .cat-toggle .plus {
        font-size: 16px !important;
        font-weight: 400 !important;
        line-height: 1 !important;
        transform: none !important; /* 不靠旋转，靠切换文字 */
        color: #fff !important;
    }

    /* 子分类列表 */
    .mobile-only-menu .sub-category {
        background: rgba(0, 0, 0, 0.15) !important;
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .mobile-only-menu .sub-category .cat-level-1 a {
        display: block;
        color: #cbd5e1 !important;
        font-size: 14px;
        padding: 12px 30px 12px 50px !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05) !important;
        text-decoration: none;
        position: relative;
    }
    .mobile-only-menu .sub-category .cat-level-1 a::before {
        content: '·';
        position: absolute;
        left: 32px;
        top: 50%;
        transform: translateY(-50%);
        color: #64748b;
        font-size: 16px;
        font-weight: bold;
    }
    .mobile-only-menu .sub-category .cat-level-1 a:hover {
        background: rgba(59, 130, 246, 0.2) !important;
        color: #fff !important;
        padding-left: 54px !important;
    }
    .mobile-only-menu .sub-category .cat-level-1 a.active {
        color: #fff !important;
        font-weight: 700;
    }

    /* 隐藏内容区原有的侧边栏 */
    .sidebar-category:not(.mobile-only-menu) {
        display: none !important;
    }
}
/* ==========================================================
   28. 移动端彻底整理补丁（修复蓝条、适配深色菜单）
   ========================================================== */

/* PC端绝对隐藏移动端专属菜单 */
.mobile-only-menu { display: none !important; }

@media screen and (max-width: 768px) {
    /* 1. 修复那个蓝色条状物：移动端强制隐藏PC端导航滑块 */
    .nav-slider { display: none !important; }

    /* 2. 移动端显示分类树，并适配深色背景 */
    .mobile-only-menu {
        display: block !important;
        background: transparent !important;
        border: none !important;
        box-shadow: none !important;
        width: 100%;
        margin-top: 10px;
    }
    .mobile-only-menu .sidebar-title {
        background: transparent !important;
        color: #fff !important;
        font-size: 15px;
        padding: 15px 30px 10px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .mobile-only-menu .cat-row {
        background: transparent !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    .mobile-only-menu .cat-link {
        flex: 1;
        color: #e2e8f0 !important;
        font-size: 15px;
        padding: 15px 30px;
    }
    /* 图标样式：白底半透明圆形 */
    .mobile-only-menu .cat-toggle {
        display: flex !important;
        width: 34px !important;
        height: 34px !important;
        margin-right: 20px !important;
        background: rgba(255, 255, 255, 0.15) !important;
        border: 1px solid rgba(255, 255, 255, 0.25) !important;
        color: #fff !important;
        border-radius: 50% !important;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        cursor: pointer;
    }
    .mobile-only-menu .cat-toggle.expanded {
        background: #3b82f6 !important;
        border-color: #3b82f6 !important;
    }
    .mobile-only-menu .cat-toggle .plus {
        font-size: 16px !important;
        line-height: 1 !important;
        color: #fff !important;
    }
    /* 子分类样式 */
    .mobile-only-menu .sub-category {
        background: rgba(0, 0, 0, 0.15) !important;
        list-style: none; padding: 0; margin: 0;
    }
    .mobile-only-menu .sub-category .cat-level-1 a {
        display: block;
        color: #cbd5e1 !important;
        font-size: 14px;
        padding: 12px 30px 12px 50px !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05) !important;
        text-decoration: none;
        position: relative;
    }
    .mobile-only-menu .sub-category .cat-level-1 a::before {
        content: '·'; position: absolute; left: 32px; top: 50%;
        transform: translateY(-50%); color: #64748b; font-size: 16px; font-weight: bold;
    }
    .mobile-only-menu .sub-category .cat-level-1 a:hover {
        background: rgba(59, 130, 246, 0.2) !important; color: #fff !important;
    }
}
/* 移动端分类树“Product Categories”标题的折叠样式 */
.mobile-only-menu .sidebar-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}
.mobile-only-menu .sidebar-title .arrow {
    font-size: 12px;
    transition: transform 0.3s ease;
    color: #dbeafe;
}
.mobile-only-menu .sidebar-title.open .arrow {
    transform: rotate(180deg);
}
/* ==========================================================
   30. 终极隔离方案：PC端和移动端导航彻底分离
   ========================================================== */

/* 1. PC端默认状态 */
.nav-item-pc { display: block; }        /* PC端显示普通导航 */
.nav-item-mobile, 
.mobile-nav-group { display: none !important; } /* PC端隐藏移动端专属导航和下拉组 */
.nav-slider { display: block; }         /* PC端显示滑块 */

/* 2. 移动端覆盖状态 */
@media screen and (max-width: 768px) {
    /* 隐藏PC端导航，显示移动端导航 */
    .nav-item-pc { display: none !important; }
    .nav-item-mobile, 
    .mobile-nav-group { display: block !important; width: 100%; }
    
    /* 移动端隐藏PC滑块 */
    .nav-slider { display: none !important; }

    /* === 移动端主导航“Products”文字样式 === */
    .mobile-nav-trigger {
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        width: 100% !important;
        padding: 18px 30px !important;
        font-size: 16px !important;
        font-weight: 600 !important;
        color: #e2e8f0 !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
        box-sizing: border-box;
    }
    .mobile-nav-trigger .arrow {
        font-size: 12px; color: #FFF; transition: transform 0.3s ease;
    }

    /* === 移动端下拉分类树容器 === */
    .mobile-category-tree-wrapper {
        display: none; /* 由 JS 控制显示 */
        background: rgba(0, 0, 0, 0.15);
        padding: 5px 0;
    }
    .mobile-category-tree-wrapper .category-tree-mobile {
        list-style: none; padding: 0; margin: 0;
    }
    .mobile-category-tree-wrapper .cat-row-mobile {
        display: flex; justify-content: space-between; align-items: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .mobile-category-tree-wrapper .cat-link-mobile {
        flex: 1;
        padding: 14px 30px 14px 40px !important;
        color: #cbd5e1 !important;
        font-size: 14px;
        text-decoration: none;
    }
    .mobile-category-tree-wrapper .cat-link-mobile:hover,
    .mobile-category-tree-wrapper .cat-link-mobile.active {
        color: #fff !important;
    }

    /* 展开/收起图标 */
    .mobile-category-tree-wrapper .cat-toggle-mobile {
        display: flex; align-items: center; justify-content: center;
        width: 30px; height: 30px; margin-right: 20px;
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 50%; color: #fff; font-size: 16px;
        cursor: pointer; flex-shrink: 0;
    }
    .mobile-category-tree-wrapper .cat-toggle-mobile.expanded {
        background: #3b82f6; border-color: #3b82f6;
    }

    /* 子分类列表 */
    .mobile-category-tree-wrapper .sub-category-mobile {
        list-style: none; padding: 0; margin: 0;
        background: rgba(0, 0, 0, 0.2);
    }
    .mobile-category-tree-wrapper .sub-category-mobile a {
        display: block;
        padding: 10px 30px 10px 55px !important;
        color: #94a3b8 !important;
        font-size: 13px;
        text-decoration: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    }
    .mobile-category-tree-wrapper .sub-category-mobile a:hover {
        color: #fff !important; background: rgba(59, 130, 246, 0.2);
    }
    
    /* 所有产品入口 */
    .mobile-all-products a {
        display: block;
        padding: 12px 30px 12px 40px !important;
        color: #60a5fa !important;
        font-size: 14px;
        font-weight: 700;
        text-decoration: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
}