/* ============================================
   Theme Name: Zhizhuxia Light
   Description: 明亮清爽科研主题 - 紫色+橙色配色
   包含：首页 | 产品详情页 | 分类页 | 博客页 | 搜索结果页 | 404页
   Version: 2.0.0
   ============================================ */

:root {
    --primary: #5f548d;
    --primary-dark: #4a3f6e;
    --primary-light: #8b7bb5;
    --accent: #d4674a;
    --accent-light: #e68a72;
    --bg-body: #f8f9fc;
    --bg-surface: #ffffff;
    --bg-card: #ffffff;
    --text-dark: #150f35;
    --text-regular: #2a2f45;
    --text-muted: #5a607c;
    --border-light: #edeff5;
    --shadow-sm: 0 8px 20px rgba(0, 0, 0, 0.03), 0 2px 4px rgba(0, 0, 0, 0.02);
    --shadow-md: 0 20px 35px -10px rgba(0, 0, 0, 0.08);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 28px;
    --transition: all 0.25s ease;
}

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

body {
    background: var(--bg-body);
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-regular);
    line-height: 1.5;
}

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

/* ============================================
   页头样式
   ============================================ */
.site-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 16px 0;
    flex-wrap: wrap;
}

.logo img {
    height: 48px;
    width: auto;
}

.search-wrapper {
    flex: 1;
    max-width: 440px;
}

.search-form {
    display: flex;
    align-items: center;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: 60px;
    transition: var(--transition);
}

.search-form:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(95, 84, 141, 0.1);
}

.search-form input {
    flex: 1;
    padding: 10px 20px;
    border: none;
    background: transparent;
    font-size: 14px;
    outline: none;
}

.search-form button {
    background: var(--primary);
    border: none;
    border-radius: 60px;
    padding: 8px 24px;
    margin: 3px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.search-form button:hover {
    background: var(--primary-dark);
}

.header-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

.action-link {
    text-decoration: none;
    font-weight: 500;
    color: var(--text-regular);
    font-size: 14px;
    transition: color 0.2s;
}

.action-link:hover {
    color: var(--primary);
}

.quick-order {
    background: var(--accent);
    color: white;
    padding: 8px 20px;
    border-radius: 60px;
    font-weight: 600;
}

.quick-order:hover {
    background: var(--accent-light);
    color: white;
}

.mobile-menu-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-regular);
    cursor: pointer;
    display: none;
}

.header-nav {
    border-top: 1px solid var(--border-light);
}

.nav-menu {
    display: flex;
    justify-content: flex-start;
    list-style: none;
    gap: 8px;
    padding: 0;
    margin: 0;
    flex-wrap: wrap;
}

.nav-menu li a {
    display: inline-block;
    padding: 12px 20px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-regular);
    text-decoration: none;
    border-radius: 60px;
    transition: var(--transition);
}

.nav-menu li a:hover {
    background: rgba(95, 84, 141, 0.08);
    color: var(--primary);
}

/* 巨型菜单 */
.mega-menu {
    position: absolute;
    top: calc(100% + 5px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 24px;
    min-width: 700px;
    width: max-content;
    max-width: 90vw;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    transition-delay: 0.15s;
    z-index: 1000;
    pointer-events: none;
    box-shadow: var(--shadow-md);
}

.nav-menu > li:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
}

.mega-cols {
    display: flex;
    gap: 24px;
}

.mega-col {
    flex: 1;
}

.mega-col strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--border-light);
}

.mega-col ul {
    list-style: none;
    margin-bottom: 16px;
}

.mega-col li {
    margin-bottom: 6px;
}

.mega-col a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 13px;
    transition: var(--transition);
}

.mega-col a:hover {
    color: var(--primary);
    transform: translateX(4px);
    display: inline-block;
}

.mega-sidebar {
    border-top: 1px solid var(--border-light);
    padding-top: 16px;
    margin-top: 16px;
    display: flex;
    gap: 16px;
    align-items: center;
}

.mega-sidebar img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.mega-sidebar strong {
    color: var(--text-dark);
    font-size: 14px;
}

.mega-sidebar p {
    font-size: 12px;
    color: var(--text-muted);
}

/* 子菜单 */
.sub-menu {
    position: absolute;
    top: calc(100% + 5px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 8px 0;
    min-width: 180px;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    transition-delay: 0.15s;
    z-index: 1000;
    pointer-events: none;
    box-shadow: var(--shadow-md);
}

.nav-menu > li:hover .sub-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
}

.sub-menu li a {
    display: block;
    padding: 8px 20px;
    color: var(--text-regular);
    text-decoration: none;
    font-size: 13px;
}

.sub-menu li a:hover {
    background: rgba(95, 84, 141, 0.05);
    color: var(--primary);
    padding-left: 28px;
}

/* ============================================
   首页 Banner
   ============================================ */
.home-banner {
    position: relative;
    background: linear-gradient(135deg, #f5f3ff 0%, #ffffff 100%);
    padding: 60px 0;
    border-bottom: 1px solid var(--border-light);
}

.home-banner__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: 0;
}

.home-banner__overlay {
    display: none;
}

.home-banner .container {
    position: relative;
    z-index: 2;
}

.home-banner__content {
    max-width: 600px;
}

.home-banner__title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.home-banner__title span {
    color: var(--accent);
}

.home-banner__subtitle {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.banner-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
    align-items: center;
}

.banner-image {
    flex: 0.8;
    text-align: center;
}

.banner-image i {
    font-size: 100px;
    color: var(--primary-light);
}

.keyword-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.keyword-tag {
    background: rgba(95, 84, 141, 0.08);
    padding: 6px 14px;
    border-radius: 60px;
    font-size: 0.75rem;
    color: var(--primary);
    font-weight: 500;
}

/* ============================================
   首页 Support 卡片
   ============================================ */
.home-support {
    padding: 60px 0;
}

.home-support__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.home-support__card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: var(--transition);
    height: 100%;
    box-shadow: var(--shadow-sm);
}

.home-support__card i {
    font-size: 2.2rem;
    color: var(--accent);
    margin-bottom: 16px;
    display: inline-block;
}

.home-support__card a {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 32px 28px;
    text-decoration: none;
}

.home-support__card h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 14px;
}

.home-support__card p {
    color: var(--text-muted);
    margin-bottom: 24px;
    line-height: 1.5;
    flex: 1;
}

.home-support__card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.btn-circle {
    background: rgba(95, 84, 141, 0.08);
    display: inline-block;
    padding: 8px 20px;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
    font-size: 13px;
    border-radius: 60px;
    width: fit-content;
    transition: var(--transition);
}

.btn-circle:hover {
    background: var(--primary);
    color: white;
}

/* ============================================
   首页 Products 区域
   ============================================ */
.home-products {
    background: var(--bg-surface);
    padding: 60px 0;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

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

.section-header h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
}

.section-header p {
    color: var(--text-muted);
    margin-top: 12px;
}

.home-products__categories ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-bottom: 56px;
    list-style: none;
}

.home-products__categories li {
    min-width: 130px;
    text-align: center;
}

.home-products__categories li a {
    background: var(--bg-surface);
    padding: 20px;
    text-align: center;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    text-decoration: none;
    display: block;
    box-shadow: var(--shadow-sm);
}

.home-products__categories li a:hover {
    background: white;
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.category-icon i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 12px;
    display: inline-block;
}

.home-products__categories strong {
    display: block;
    margin-top: 12px;
    font-weight: 700;
    color: var(--text-regular);
    font-size: 13px;
}

.home-products__services ul {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    list-style: none;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.service-card i {
    font-size: 1.8rem;
    color: var(--accent);
    margin-bottom: 16px;
    display: inline-block;
}

.service-card a {
    display: block;
    padding: 28px;
    text-decoration: none;
}

.service-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 14px;
}

.service-card p {
    color: var(--text-muted);
    line-height: 1.5;
    font-size: 14px;
    margin-bottom: 16px;
}

.service-card .btn-circle {
    margin-top: 12px;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

/* ============================================
   首页 Cases 区域
   ============================================ */
.home-cases {
    padding: 60px 0;
    background: var(--bg-body);
}

.home-cases__wrapper {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 48px;
    flex-wrap: wrap;
}

.home-cases__header h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.btn-outline {
    border: 1.5px solid var(--primary);
    background: transparent;
    padding: 10px 28px;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
    display: inline-block;
    border-radius: 60px;
    transition: var(--transition);
}

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

.cases-list {
    flex: 1;
    list-style: none;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.cases-list li {
    border-bottom: 1px solid var(--border-light);
}

.cases-list li:last-child {
    border-bottom: none;
}

.case-item__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    text-decoration: none;
    transition: var(--transition);
}

.case-item__inner:hover {
    background: rgba(95, 84, 141, 0.05);
}

.case-title {
    font-weight: 600;
    color: var(--text-regular);
    font-size: 15px;
}

.case-arrow {
    width: 16px;
    height: 16px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23d4674a' stroke-width='2'%3E%3Cpolyline points='9 18 15 12 9 6'%3E%3C/polyline%3E%3C/svg%3E");
    background-size: contain;
    opacity: 0.7;
}

/* ============================================
   首页 Solutions 区域
   ============================================ */
.home-solutions {
    padding: 60px 0;
    background: var(--bg-surface);
}

.home-solutions__row {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.home-solutions__content {
    flex: 1.2;
}

.home-solutions__content h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.home-solutions__content p {
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}

.home-solutions__csr {
    flex: 1;
}

.csr-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 40px 32px;
    color: white;
    border-radius: var(--radius-md);
}

.csr-card span {
    color: var(--accent);
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.csr-card p {
    font-size: 18px;
    font-weight: 600;
    margin-top: 12px;
}

.home-solutions__banners {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.solution-banner {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: var(--transition);
    overflow: hidden;
}

.solution-banner a {
    display: block;
    padding: 28px;
    text-decoration: none;
    min-height: 160px;
}

.solution-banner span {
    color: var(--accent);
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.solution-banner strong {
    display: block;
    font-size: 16px;
    margin-top: 12px;
    color: var(--text-dark);
}

.solution-banner .banner-desc {
    margin-top: 12px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.solution-banner:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   产品详情页样式
   ============================================ */
.product-detail-container {
    max-width: 1280px;
    margin: 2rem auto;
    padding: 0 24px;
}

.breadcrumb {
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--primary);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    color: var(--text-regular);
}

.product-detail-container .product-grid {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.product-detail-container .product-gallery {
    flex: 1.2;
    min-width: 280px;
}

.product-detail-container .product-info {
    flex: 1;
    min-width: 280px;
}

.product-detail-container .main-image {
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    overflow: hidden;
    margin-bottom: 1rem;
}

.product-detail-container .main-image img {
    width: 100%;
    display: block;
    aspect-ratio: 4 / 3;
    object-fit: contain;
    padding: 1rem;
}

.product-detail-container .thumbnail-list {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.product-detail-container .thumbnail-item {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-surface);
}

.product-detail-container .thumbnail-item.active,
.product-detail-container .thumbnail-item:hover {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(95, 84, 141, 0.1);
}

.product-detail-container .thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail-container .catalog-number {
    margin-top: 0.8rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
}

.product-detail-container .product-info h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.new-badge {
    display: inline-block;
    background: var(--accent);
    font-size: 0.7rem;
    padding: 0.2rem 0.8rem;
    border-radius: 60px;
    margin-left: 0.8rem;
    vertical-align: middle;
    color: white;
    font-weight: 600;
}

.product-detail-container .product-attr {
    background: var(--bg-body);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin: 1rem 0;
    border: 1px solid var(--border-light);
}

.product-detail-container .attr-row {
    display: flex;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.85rem;
}

.product-detail-container .attr-row:last-child {
    border-bottom: none;
}

.product-detail-container .attr-label {
    width: 120px;
    font-weight: 600;
    color: var(--text-regular);
}

.product-detail-container .attr-value {
    flex: 1;
    color: var(--text-muted);
}

.product-detail-container .price-box {
    background: rgba(95, 84, 141, 0.05);
    border-left: 3px solid var(--primary);
    padding: 1rem;
    border-radius: var(--radius-sm);
    margin: 1rem 0;
}

.product-detail-container .price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.product-detail-container .stock {
    color: #10B981;
    margin: 0.3rem 0;
    font-size: 0.85rem;
}

.product-detail-container .shipping {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.product-detail-container .quantity-selector {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin: 1rem 0;
}

.product-detail-container .qty-btn {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    color: var(--text-regular);
    cursor: pointer;
    transition: var(--transition);
}

.product-detail-container .qty-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.product-detail-container .qty-input {
    width: 60px;
    height: 32px;
    text-align: center;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    color: var(--text-regular);
}

.product-detail-container .variation-selector {
    margin: 1rem 0;
}

.product-detail-container .variation-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-regular);
    margin-bottom: 0.5rem;
}

.product-detail-container .variation-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.product-detail-container .variation-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: 60px;
    padding: 0.4rem 1rem;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
    color: var(--text-regular);
}

.product-detail-container .variation-item.active,
.product-detail-container .variation-item:hover {
    border-color: var(--primary);
    background: rgba(95, 84, 141, 0.05);
}

.product-detail-container .variation-item span:last-child {
    color: var(--primary);
    font-weight: 600;
}

.product-detail-container .action-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin: 1.5rem 0;
}

.product-detail-container .btn-primary {
    background: var(--primary);
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 60px;
    font-weight: 600;
    font-size: 0.9rem;
    color: white;
    cursor: pointer;
    transition: var(--transition);
}

.product-detail-container .btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.product-detail-container .btn-secondary {
    background: transparent;
    border: 1px solid var(--border-light);
    padding: 0.6rem 1.2rem;
    border-radius: 60px;
    font-weight: 500;
    color: var(--text-regular);
    cursor: pointer;
    transition: var(--transition);
}

.product-detail-container .btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.product-detail-container .document-links {
    margin-top: 1rem;
    display: flex;
    gap: 1rem;
}

.product-detail-container .doc-link {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--primary);
    text-decoration: none;
    font-size: 0.85rem;
}

.product-detail-container .doc-link:hover {
    text-decoration: underline;
}

.product-detail-container .recommend-media {
    margin-top: 1rem;
}

.product-detail-container .recommend-trigger {
    background: rgba(95, 84, 141, 0.05);
    border-left: 3px solid var(--primary);
    padding: 0.6rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.product-detail-container .recommend-trigger span {
    color: var(--primary);
    font-size: 0.85rem;
}

.product-detail-container .recommend-content {
    background: var(--bg-body);
    border-radius: var(--radius-sm);
    padding: 0.6rem 1rem;
    margin-top: 0.5rem;
    display: none;
}

.product-detail-container .recommend-content.show {
    display: block;
}

.product-detail-container .recommend-content a {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.85rem;
}

.product-detail-container .product-excerpt {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

.product-detail-container .product-excerpt p {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.5;
}

.product-detail-container .tabs-section {
    margin-top: 2rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.product-detail-container .tabs-header {
    display: flex;
    gap: 0;
    background: var(--bg-body);
    border-bottom: 1px solid var(--border-light);
    flex-wrap: wrap;
}

.product-detail-container .tab-btn {
    padding: 0.8rem 1.5rem;
    background: transparent;
    border: none;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.product-detail-container .tab-btn.active {
    color: var(--primary);
    background: var(--bg-surface);
    border-bottom: 2px solid var(--primary);
    margin-bottom: -1px;
}

.product-detail-container .tab-btn:hover:not(.active) {
    color: var(--primary);
}

.product-detail-container .tab-pane {
    display: none;
    padding: 1.5rem;
    animation: fadeIn 0.3s ease;
}

.product-detail-container .tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.product-detail-container .spec-table {
    width: 100%;
    border-collapse: collapse;
}

.product-detail-container .spec-table tr {
    border-bottom: 1px solid var(--border-light);
}

.product-detail-container .spec-table td {
    padding: 0.8rem;
    vertical-align: top;
    font-size: 0.85rem;
}

.product-detail-container .spec-table td:first-child {
    width: 160px;
    font-weight: 600;
    color: var(--text-regular);
    background: var(--bg-body);
}

.product-detail-container .spec-table td:last-child {
    color: var(--text-muted);
}

.product-detail-container .disclaimer-text p {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.5;
    margin-bottom: 0.8rem;
}

.product-detail-container .product-description-section {
    margin-top: 2rem;
}

.product-detail-container .product-description-section h2 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
}

.product-detail-container .product-description-section > div:last-child {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
}

.product-detail-container .product-description-section > div:last-child p {
    color: var(--text-regular);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0.8rem;
}

.product-detail-container .related-section {
    margin-top: 2rem;
}

.product-detail-container .related-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    border-left: 3px solid var(--primary);
    padding-left: 0.8rem;
    color: var(--text-dark);
}

.product-detail-container .related-grid {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.product-detail-container .related-card {
    min-width: 160px;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 1rem;
    transition: var(--transition);
    text-decoration: none;
    display: block;
}

.product-detail-container .related-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.product-detail-container .related-card img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: contain;
    margin-bottom: 0.8rem;
}

.product-detail-container .related-card h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-regular);
    text-align: center;
    margin: 0;
}

.product-error {
    background: rgba(212, 103, 74, 0.1);
    border-left: 3px solid var(--accent);
    padding: 2rem;
    margin: 2rem;
    border-radius: var(--radius-sm);
    text-align: center;
}

/* ============================================
   分类页/资源列表页样式
   ============================================ */
.products_main {
    max-width: 1280px;
    margin: 2rem auto;
    padding: 0 24px;
}

.products_main .content {
    width: 100%;
}

.products_main .flex {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.products_main .left {
    flex: 0 0 280px;
}

.products_main .right {
    flex: 1;
}

/* 分类菜单 */
.categories_select {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.categories_select > ul > li > a {
    display: block;
    padding: 0.5rem 0.8rem;
    color: var(--text-regular);
    text-decoration: none;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.categories_select > ul > li.active > a {
    background: var(--primary);
    color: white;
}

.categories_select ul ul {
    padding-left: 1rem;
}

.categories_select ul ul li a {
    padding: 0.3rem 0.8rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.categories_select ul ul li a:hover {
    color: var(--primary);
}

/* 搜索框 */
.search_con {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.search_con .flex {
    display: flex;
    gap: 0.5rem;
}

.search_con input[type="text"] {
    flex: 1;
    padding: 0.5rem 0.8rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    outline: none;
}

.search_con input[type="text"]:focus {
    border-color: var(--primary);
}

.search_con input[type="submit"] {
    background: var(--primary);
    border: none;
    border-radius: var(--radius-sm);
    padding: 0 1rem;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.search_con input[type="submit"]:hover {
    background: var(--primary-dark);
}

/* 筛选器 */
.filter_block {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 1rem;
}

.filter_block .con {
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 0.8rem;
}

.filter_block .con:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.filter_block .title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    padding: 0.3rem 0;
}

.filter_block .title strong {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-dark);
}

.filter_block .title span {
    width: 16px;
    height: 16px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-size: contain;
    transition: transform 0.2s;
}

.filter_block .title.selected span {
    transform: rotate(180deg);
}

.filter_block .con ul {
    list-style: none;
    margin-top: 0.5rem;
}

.filter_block .con ul li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0;
    cursor: pointer;
}

.filter_block .con ul li .checkbox {
    width: 14px;
    height: 14px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    display: inline-block;
}

.filter_block .con ul li.active .checkbox {
    background: var(--primary);
    border-color: var(--primary);
    position: relative;
}

.filter_block .con ul li.active .checkbox::after {
    content: "✓";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 10px;
}

.filter_block .con ul li p {
    flex: 1;
    font-size: 0.8rem;
    color: var(--text-regular);
    margin: 0;
}

.filter_block .con ul li .num {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.filter_block .show_more {
    background: transparent;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 0.3rem 0.8rem;
    font-size: 0.7rem;
    color: var(--primary);
    cursor: pointer;
    margin-top: 0.5rem;
    width: 100%;
    transition: var(--transition);
}

.filter_block .show_more:hover {
    background: var(--primary);
    color: white;
}

/* 右侧头部 */
.products_main .right .head {
    margin-bottom: 1.5rem;
}

.products_main .right .head h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.products_main .right .head p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* 工具栏 */
.sort_con {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 0.8rem 1rem;
    margin-bottom: 1.5rem;
}

.sort_con .flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.sort, .per_page {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sort p, .per_page p {
    font-size: 0.8rem;
    color: var(--text-regular);
}

.sort select, .per_page select {
    padding: 0.3rem 1.5rem 0.3rem 0.5rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    font-size: 0.8rem;
    cursor: pointer;
}

.icon_sort {
    width: 18px;
    height: 18px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2'%3E%3Cpath d='M7 10l5 5 5-5'%3E%3C/path%3E%3C/svg%3E");
    cursor: pointer;
}

.icon_sort.desc {
    transform: rotate(180deg);
}

.count {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.turn_page ul {
    display: flex;
    gap: 0.3rem;
    list-style: none;
}

.turn_page li a,
.turn_page li span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    padding: 0 0.5rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: var(--text-regular);
    text-decoration: none;
    font-size: 0.75rem;
    transition: var(--transition);
}

.turn_page li a:hover {
    background: var(--bg-body);
    border-color: var(--primary);
    color: var(--primary);
}

.turn_page li span {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* 资源列表 */
.resources_list ul {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    list-style: none;
    margin-bottom: 2rem;
}

.resources_list ul li {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    overflow: hidden;
}

.resources_list ul li:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.resources_list ul li a {
    display: block;
    padding: 1rem;
    text-decoration: none;
}

.resources_list ul li .image {
    margin-bottom: 0.8rem;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.resources_list ul li .image img {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.resources_list ul li strong {
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.resources_list ul li .excerpt p {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.resources_list ul li span span {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.btn_more {
    background: var(--primary);
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.6rem 2rem;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn_more:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* ============================================
   搜索页样式
   ============================================ */
.search_results_nav {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 0.8rem 1rem;
    margin-bottom: 1.5rem;
}

.search_results_nav ul {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    list-style: none;
}

.search_results_nav ul li a {
    font-size: 0.85rem;
    color: var(--primary);
    text-decoration: none;
}

.search_results_nav ul li a:hover {
    text-decoration: underline;
}

.products_list ul {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    list-style: none;
    margin-bottom: 2rem;
}

.products_list ul li {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    overflow: hidden;
}

.products_list ul li:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.products_list ul li a {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    text-decoration: none;
}

.products_list ul li .img {
    width: 100px;
    height: 100px;
    flex-shrink: 0;
    background: var(--bg-body);
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.products_list ul li .img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.products_list ul li strong {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-dark);
    display: block;
    margin-bottom: 0.3rem;
}

.products_list ul li p {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.4;
    margin-bottom: 0.3rem;
}

.products_list ul li span {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.pagination {
    text-align: center;
    margin-top: 2rem;
}

.pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    padding: 0 0.8rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: var(--text-regular);
    text-decoration: none;
    font-size: 0.8rem;
    margin: 0 0.2rem;
    transition: var(--transition);
}

.pagination .page-numbers:hover {
    background: var(--bg-body);
    border-color: var(--primary);
    color: var(--primary);
}

.pagination .page-numbers.current {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* ============================================
   博客文章页样式
   ============================================ */
.post_banner {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-light);
    padding: 2rem 0;
}

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

.post_banner .breadcrumb {
    margin-bottom: 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.post_banner .breadcrumb a {
    color: var(--primary);
    text-decoration: none;
}

.post_banner .breadcrumb .separator {
    margin: 0 0.3rem;
}

.post_banner .head h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.post_banner .head p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.post_main {
    padding: 3rem 0;
}

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

.post_main .content p {
    color: var(--text-regular);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.post_main .content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin: 1.5rem 0 1rem;
}

.post_main .content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 1.2rem 0 0.8rem;
}

.post_main .content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    margin: 1rem 0;
}

.post_share {
    background: var(--bg-body);
    padding: 2rem 0;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

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

.share_box {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.share_box strong {
    font-size: 0.9rem;
    color: var(--text-dark);
}

.share_box ul {
    display: flex;
    gap: 0.8rem;
    list-style: none;
}

.share_box ul li a {
    display: inline-block;
    padding: 0.3rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    text-decoration: none;
    transition: var(--transition);
}

.share_box ul li.facebook a {
    background: #1877f2;
    color: white;
}

.share_box ul li.twitter a {
    background: #1da1f2;
    color: white;
}

.share_box ul li.pinterst a {
    background: #0077b5;
    color: white;
}

.post_other_info {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

.post_other_info ul {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    list-style: none;
}

.post_other_info ul li a {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.8rem;
}

.post_other_info ul li a:hover {
    text-decoration: underline;
}

.post_related {
    padding: 3rem 0;
}

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

.post_related .head {
    margin-bottom: 1.5rem;
}

.post_related .head strong {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    border-left: 3px solid var(--primary);
    padding-left: 0.8rem;
}

.post_list ul {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    list-style: none;
}

.post_list ul li {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    overflow: hidden;
}

.post_list ul li:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.post_list ul li a {
    text-decoration: none;
}

.post_list ul li .image {
    width: 100%;
    height: 160px;
    overflow: hidden;
}

.post_list ul li .image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.post_list ul li:hover .image img {
    transform: scale(1.02);
}

.post_list ul li strong {
    display: block;
    padding: 1rem 1rem 0.5rem;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-dark);
}

.post_list ul li p {
    padding: 0 1rem 1rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ============================================
   404 错误页面
   ============================================ */
.error-404-page {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5rem 2rem;
}

.error-container {
    max-width: 600px;
    text-align: center;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 3rem 2rem;
    box-shadow: var(--shadow-md);
}

.error-code {
    font-size: 6rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 1rem;
}

.error-container h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.error-description {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.btn-home {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary);
    border: none;
    border-radius: 60px;
    padding: 0.6rem 1.5rem;
    color: white;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.btn-home:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-home svg {
    width: 16px;
    height: 16px;
}

.additional-links {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.additional-links a {
    font-size: 0.8rem;
    color: var(--primary);
    text-decoration: none;
}

.additional-links a:hover {
    text-decoration: underline;
}

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

/* ============================================
   页脚样式
   ============================================ */
.bio-footer {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-light);
    padding: 48px 0 32px;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-col h4 {
    font-weight: 700;
    margin-bottom: 18px;
    color: var(--primary);
    font-size: 16px;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 10px;
}

.footer-col a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 13px;
    transition: color 0.2s;
}

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

.subscribe-form {
    margin: 16px 0;
}

.input-group {
    display: flex;
    background: var(--bg-body);
    border-radius: 60px;
    border: 1px solid var(--border-light);
    margin: 16px 0;
}

.input-group input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 10px 16px;
    font-size: 13px;
    outline: none;
}

.input-group button {
    background: var(--primary);
    border: none;
    border-radius: 60px;
    padding: 0 20px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.input-group button:hover {
    background: var(--primary-dark);
}

.subscribe-note {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 8px;
}

.contact-row {
    margin: 16px 0;
}

.contact-row a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 13px;
}

.contact-row a:hover {
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--bg-body);
    border-radius: 50%;
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    color: white;
}

.footer-disclaimer {
    background: var(--bg-body);
    border-left: 3px solid var(--accent);
    padding: 12px 16px;
    margin: 24px 0;
    text-align: center;
    font-size: 11px;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
}

.footer-bottom {
    border-top: 1px solid var(--border-light);
    padding-top: 24px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    font-size: 12px;
    color: var(--text-muted);
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
}

.footer-bottom-links a {
    color: var(--text-muted);
    text-decoration: none;
}

.footer-bottom-links a:hover {
    color: var(--primary);
}

/* ============================================
   按钮通用样式
   ============================================ */
.btn {
    display: inline-block;
    background: var(--primary);
    border: none;
    padding: 12px 32px;
    border-radius: 60px;
    font-weight: 600;
    color: white;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 4px 8px rgba(95, 84, 141, 0.2);
}

.btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px 32px;
    border-radius: 60px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
    box-shadow: 0 4px 8px rgba(95, 84, 141, 0.2);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-sm {
    background: rgba(95, 84, 141, 0.08);
    border: none;
    padding: 8px 20px;
    border-radius: 60px;
    font-weight: 600;
    color: var(--primary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
}

.btn-sm:hover {
    background: var(--primary);
    color: white;
}

.btn-icon {
    background: transparent;
    border: 1px solid var(--border-light);
    border-radius: 60px;
    padding: 10px 20px;
    font-size: 0.85rem;
    color: var(--primary);
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon i {
    margin-right: 6px;
}

.btn-icon:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 992px) {
    .home-support__grid,
    .home-products__services ul,
    .home-solutions__banners,
    .footer-grid,
    .post_list ul,
    .resources_list ul {
        grid-template-columns: repeat(2, 1fr);
    }
    .products_main .flex {
        flex-direction: column;
    }
    .products_main .left {
        flex: auto;
    }
}

@media (max-width: 768px) {
    .container, .header-container, .footer-container {
        padding: 0 20px;
    }
    .header-top {
        flex-direction: column;
        align-items: stretch;
    }
    .search-wrapper {
        max-width: 100%;
    }
    .mobile-menu-toggle {
        display: block;
    }
    .header-nav {
        display: none;
    }
    .home-support__grid,
    .home-products__services ul,
    .home-solutions__banners,
    .footer-grid,
    .post_list ul,
    .resources_list ul {
        grid-template-columns: 1fr;
    }
    .home-products__categories ul {
        flex-direction: column;
    }
    .home-cases__wrapper {
        flex-direction: column;
    }
    .cases-list {
        width: 100%;
    }
    .home-banner__title {
        font-size: 32px;
    }
    .home-solutions__row {
        flex-direction: column;
    }
    .banner-wrapper {
        flex-direction: column;
        text-align: center;
    }
    .banner-image {
        order: -1;
    }
    .products_list ul li a {
        flex-direction: column;
    }
    .products_list ul li .img {
        width: 100%;
        height: auto;
        aspect-ratio: 1 / 1;
    }
}

@media (max-width: 480px) {
    .home-banner__title {
        font-size: 24px;
    }
    .section-header h2 {
        font-size: 24px;
    }
    .post_banner .head h1 {
        font-size: 1.5rem;
    }
    .error-code {
        font-size: 4rem;
    }
    .error-container {
        padding: 2rem 1.5rem;
    }
}