/**
 * 易佰福食品官网 - 主样式表
 * 位置: /assets/css/style.css
 * 版本: 2.0
 */

/* ============================================
   变量定义
   ============================================ */
:root {
    --color-primary: #e30b0b;
    --color-primary-light: #CD853F;
    --color-primary-dark: #5D2E0C;
    --color-accent: #D2691E;
    --color-accent-light: #F4A460;
    --color-gold: #C9A96E;
    --color-green: #5B8C3A;
    --color-bg: #FDF8F0;
    --color-bg-alt: #F5EDE0;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-white: #FFFFFF;
    --color-border: #E8DFD0;
    --font-serif: 'Noto Serif SC', 'SimSun', serif;
    --font-sans: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    --shadow-sm: 0 2px 8px rgba(139,69,19,0.08);
    --shadow-md: 0 4px 16px rgba(139,69,19,0.12);
    --shadow-lg: 0 8px 32px rgba(139,69,19,0.15);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
}

/* ============================================
   重置与基础
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   顶部信息栏
   ============================================ */
.top-bar {
    background: #181818;
    color: rgba(255,255,255,0.85);
    font-size: 0.85rem;
    padding: 8px 0;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-left {
    display: flex;
    gap: 12px;
    align-items: center;
}

.top-bar-left .divider {
    opacity: 0.4;
}

.top-bar-right {
    display: flex;
    gap: 16px;
}

.social-link {
    opacity: 0.85;
    font-size: 0.8rem;
}

.social-link:hover {
    opacity: 1;
    color: #DAA520;
}

/* ============================================
   主导航
   ============================================ */
.main-header {
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.main-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    height: 48px;
    width: auto;
    object-fit: contain;
}

.logo-icon {
    font-size: 2rem;
    line-height: 1;
}

.logo-text h1 {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: #D02127;
    line-height: 1.2;
    letter-spacing: 2px;
}

.logo-text span {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    letter-spacing: 3px;
    display: block;
    margin-top: -2px;
}

.main-nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    position: relative;
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #D02127;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: #D02127;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
    position: relative;
    z-index: 1003;
}

.search-toggle,
.mobile-menu-toggle {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    transition: var(--transition);
}

.search-toggle:hover,
.mobile-menu-toggle:hover {
    background: var(--color-bg-alt);
}

.mobile-menu-toggle {
    display: none;
}

/* 搜索框 */
.search-box {
    display: none;
    background: var(--color-bg-alt);
    padding: 16px 0;
    border-top: 1px solid var(--color-border);
}

.search-box.active {
    display: block;
}

.search-box .container {
    display: flex;
    align-items: center;
    gap: 16px;
}

.search-form {
    flex: 1;
    display: flex;
    gap: 8px;
}

.search-form input {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    background: var(--color-white);
}

.search-form button {
    padding: 10px 24px;
    background: #D02127;
    color: #FFFFFF;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    transition: var(--transition);
}

.search-form button:hover {
    background: #5C0000;
}

.search-close {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    padding: 4px;
}

.search-close:hover {
    color: var(--color-text);
}

/* ============================================
   移动端菜单 - 修复版
   ============================================ */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100vh;
    background: var(--color-white);
    z-index: 1002;
    padding: 80px 24px 24px;
    flex-direction: column;
    gap: 4px;
    transition: right 0.3s ease;
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
}

.mobile-menu.active {
    right: 0;
    display: flex;
}

.mobile-menu a {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 1rem;
    color: var(--color-text);
}

.mobile-menu a:hover,
.mobile-menu a.active {
    background: #F5EDE0;
    color: #D02127;
}

.mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
}

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

/* ============================================
   轮播图 - 无遮罩版
   ============================================ */
.hero-slider {
    position: relative;
    height: 560px;
    overflow: hidden;
    background: var(--color-primary-dark);
}

.slider-container {
    position: relative;
    height: 100%;
}

.slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.8s ease;
    display: flex;
    align-items: center;
}

.slide.active {
    opacity: 1;
}

.slide-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
}

/* 遮罩层已完全移除 - 背景图片/颜色完全展示 */
.slide-bg::after {
    content: none;
    display: none !important;
}

.slide-content {
    position: relative;
    z-index: 2;
    width: 100%;
    color: var(--color-white);
    padding: 0 20px;
}

.slide-title {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.3;
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
    color: #FFFFFF;
    animation: slideInUp 0.8s ease 0.2s both;
}

.slide-subtitle {
    font-size: 1.15rem;
    opacity: 0.9;
    margin-bottom: 32px;
    max-width: 500px;
    animation: slideInUp 0.8s ease 0.4s both;
}

.slide .btn {
    animation: slideInUp 0.8s ease 0.6s both;
}

.slider-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 3;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    transition: var(--transition);
}

.dot.active {
    background: #DAA520;
    width: 28px;
    border-radius: 5px;
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: rgba(0,0,0,0.2);
    backdrop-filter: blur(4px);
    border-radius: 50%;
    color: var(--color-white);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    transition: var(--transition);
}

.slider-arrow:hover {
    background: rgba(0,0,0,0.4);
}

.slider-prev { left: 20px; }
.slider-next { right: 20px; }

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   通用区块
   ============================================ */
.section {
    padding: 80px 0;
}

.section-alt {
    background: var(--color-bg-alt);
}

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

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    color: #A52A2A;
    letter-spacing: 3px;
    margin-bottom: 8px;
    font-weight: 500;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: #5C0000;
    margin-bottom: 12px;
}

.section-desc {
    color: var(--color-text-light);
    font-size: 1rem;
}

.section-more {
    text-align: center;
    margin-top: 40px;
}

/* ============================================
   按钮
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: #5C0000;
    border-color: #5C0000;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

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

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

.btn-white:hover {
    background: #F5EDE0;
}

.btn-outline-white {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255,255,255,0.6);
}

.btn-outline-white:hover {
    background: rgba(0,0,0,0.2);
    border-color: var(--color-white);
}

.btn-large {
    padding: 14px 36px;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ============================================
   品牌优势
   ============================================ */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.advantage-card {
    background: var(--color-white);
    padding: 36px 24px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.advantage-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.advantage-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.advantage-card h3 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    margin-bottom: 10px;
    color: #5C0000;
}

.advantage-card p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ============================================
   产品展示
   ============================================ */
.product-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 8px 20px;
    border-radius: 24px;
    font-size: 0.9rem;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    color: var(--color-text-light);
    transition: var(--transition);
    cursor: pointer;
}

.tab-btn:hover,
.tab-btn.active {
    background: #D02127;
    color: #FFFFFF;
    border-color: #D02127;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-grid-large {
    grid-template-columns: repeat(3, 1fr);
}

.product-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.product-link {
    display: block;
}

.product-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--color-bg-alt);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-white);
}

.badge-hot { background: #E74C3C; }
.badge-new { background: var(--color-green); }

.product-info {
    padding: 16px;
}

.product-category {
    font-size: 0.75rem;
    color: #A52A2A;
    margin-bottom: 6px;
    display: block;
}

.product-name {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    margin-bottom: 8px;
    color: var(--color-text);
    line-height: 1.4;
}

.product-intro {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 12px;
    line-height: 1.5;
}

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

.price {
    font-size: 1.15rem;
    font-weight: 700;
    color: #D02127;
}

.market-price {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-decoration: line-through;
}

/* ============================================
   关于我们（首页）
   ============================================ */
.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-image {
    position: relative;
    height: 420px;
}

.about-img-main {
    position: absolute;
    top: 0;
    left: 0;
    width: 75%;
    height: 85%;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-dark);
    font-family: var(--font-serif);
    font-size: 1.2rem;
    box-shadow: var(--shadow-md);
}

.about-img-sub {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 50%;
    height: 50%;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-family: var(--font-serif);
    font-size: 1rem;
    box-shadow: var(--shadow-md);
    border: 4px solid var(--color-bg);
}

.about-content .section-tag {
    text-align: left;
    display: block;
}

.about-content .section-title {
    text-align: left;
    color: #5C0000;
}

.about-text {
    color: var(--color-text-light);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-stats {
    display: flex;
    gap: 32px;
    margin: 28px 0;
    padding: 20px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stat-item {
    text-align: center;
}

.stat-num {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 700;
    color: #D02127;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ============================================
   新闻
   ============================================ */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.news-grid-large {
    grid-template-columns: repeat(3, 1fr);
}

.news-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

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

.news-card a {
    display: block;
}

.news-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--color-bg-alt);
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card:hover .news-image img {
    transform: scale(1.05);
}

.news-body {
    padding: 20px;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

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

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

.news-title {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    color: var(--color-text);
    line-height: 1.5;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-summary {
    font-size: 0.88rem;
    color: var(--color-text-light);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-readmore {
    display: inline-block;
    margin-top: 12px;
    font-size: 0.85rem;
    color: #D02127;
    font-weight: 500;
}

/* ============================================
   CTA区块
   ============================================ */
.section-cta {
    padding: 60px 0;
}

.cta-box {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary) 100%);
    border-radius: var(--radius-lg);
    padding: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    color: var(--color-white);
}

.cta-content h2 {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    margin-bottom: 8px;
    color: #FFFFFF;
}

.cta-content p {
    opacity: 0.9;
}

.cta-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

/* ============================================
   页脚
   ============================================ */
.main-footer {
    background: #2C1810;
    color: rgba(255,255,255,0.7);
}

.footer-main {
    padding: 60px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    color: var(--color-white);
}

.footer-logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.footer-logo .logo-icon {
    font-size: 1.8rem;
}

.footer-logo .logo-text {
    font-family: var(--font-serif);
    font-size: 1.3rem;
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-contact-info p {
    font-size: 0.88rem;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact-info span {
    font-size: 1rem;
}

.footer-links h4 {
    color: var(--color-white);
    font-family: var(--font-serif);
    font-size: 1.05rem;
    margin-bottom: 20px;
}

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

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

.footer-links a {
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: #DAA520;
    padding-left: 4px;
}

.footer-subscribe h4 {
    color: var(--color-white);
    font-family: var(--font-serif);
    font-size: 1.05rem;
    margin-bottom: 12px;
}

.footer-subscribe p {
    font-size: 0.85rem;
    margin-bottom: 16px;
}

.qr-placeholder {
    display: flex;
    gap: 12px;
}

.qr-box {
    width: 100px;
    height: 100px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    text-align: center;
    color: rgba(255,255,255,0.5);
    overflow: hidden;
}

.qr-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
}

.footer-bottom p {
    margin-bottom: 4px;
}

/* 返回顶部 */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 44px;
    height: 44px;
    background: #D02127;
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: #5C0000;
    transform: translateY(-4px);
}

/* ============================================
   页面头部
   ============================================ */
.page-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary) 100%);
    color: var(--color-white);
    max-width: 1160px;
    padding: 12px 0 10px;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.page-header h1 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    text-align: left;
    margin-bottom: 0px;
    color: #FFFFFF;
}

.breadcrumb {
    display: flex;
    justify-content: left;
    align-items: left;
    gap: 8px;
    font-size: 0.9rem;
    opacity: 0.85;
}

.breadcrumb a:hover {
    color: #DAA520;
}

/* ============================================
   筛选栏
   ============================================ */
.filter-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 18px;
    border-radius: 24px;
    font-size: 0.88rem;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    color: var(--color-text-light);
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: #D02127;
    color: #FFFFFF;
    border-color: #D02127;
}

/* ============================================
   分页
   ============================================ */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 48px;
}

.page-link {
    min-width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 12px;
    border-radius: var(--radius-sm);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    font-size: 0.9rem;
    transition: var(--transition);
}

.page-link:hover,
.page-link.active {
    background: #D02127;
    color: #FFFFFF;
    border-color: #D02127;
}

.page-ellipsis {
    color: var(--color-text-muted);
    padding: 0 4px;
}

/* ============================================
   产品详情页
   ============================================ */
.product-detail-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.product-gallery {
    position: sticky;
    top: 100px;
}

.gallery-main {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 16px;
    border: 1px solid var(--color-border);
    aspect-ratio: 1;
}

.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-thumbs {
    display: flex;
    gap: 10px;
}

.gallery-thumbs .thumb {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 2px solid var(--color-border);
    cursor: pointer;
    transition: var(--transition);
}

.gallery-thumbs .thumb.active,
.gallery-thumbs .thumb:hover {
    border-color: var(--color-primary);
}

.gallery-thumbs .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-meta {
    padding-top: 16px;
}

.product-category-tag {
    display: inline-block;
    padding: 4px 12px;
    background: #F5EDE0;
    color: #D02127;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-bottom: 12px;
}

.product-detail-name {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    margin-bottom: 12px;
    line-height: 1.3;
    color: #5C0000;
}

.product-detail-intro {
    color: var(--color-text-light);
    margin-bottom: 24px;
    line-height: 1.7;
}

.product-detail-price {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 28px;
    padding: 20px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-sm);
}

.price-current {
    font-size: 1.8rem;
    font-weight: 700;
    color: #D02127;
}

.price-original {
    font-size: 1rem;
    color: var(--color-text-muted);
    text-decoration: line-through;
}

.price-save {
    font-size: 0.85rem;
    color: var(--color-green);
    background: rgba(91,140,58,0.1);
    padding: 2px 8px;
    border-radius: 4px;
}

.product-detail-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.product-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.product-detail-tags .tag {
    padding: 6px 12px;
    background: var(--color-bg-alt);
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* 产品内容标签页 */
.product-content-tabs {
    margin-bottom: 48px;
}

.tabs-nav {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 24px;
}

.tab-nav {
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-light);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
}

.tab-nav:hover,
.tab-nav.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

.params-table {
    width: 100%;
    border-collapse: collapse;
}

.params-table th,
.params-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.params-table th {
    width: 160px;
    color: var(--color-text-light);
    font-weight: 500;
    background: var(--color-bg-alt);
}

.related-products {
    margin-top: 48px;
}

.related-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid #E0D5C8;
}

/* ============================================
   内容编辑器样式（用于显示后台富文本）
   ============================================ */
.content-editor {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text);
}

.content-editor p {
    margin-bottom: 1em;
}

.content-editor h2,
.content-editor h3,
.content-editor h4 {
    font-family: var(--font-serif);
    margin: 1.5em 0 0.8em;
    color: #5C0000;
}

.content-editor h2 { font-size: 1.5rem; }
.content-editor h3 { font-size: 1.25rem; }
.content-editor h4 { font-size: 1.1rem; }

.content-editor img {
    max-width: 100%;
    border-radius: var(--radius-sm);
    margin: 1em 0;
}

.content-editor ul,
.content-editor ol {
    margin: 1em 0;
    padding-left: 2em;
}

.content-editor li {
    margin-bottom: 0.5em;
}

.content-editor blockquote {
    border-left: 4px solid #A52A2A;
    padding-left: 16px;
    margin: 1em 0;
    color: var(--color-text-light);
    font-style: italic;
}

/* ============================================
   文章详情页
   ============================================ */
.section-article {
    padding-top: 40px;
}

.article-main {
    max-width: 800px;
    margin: 0 auto;
    background: var(--color-white);
    padding: 40px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.article-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-border);
}

.article-title {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    line-height: 1.4;
    margin-bottom: 16px;
    color: #5C0000;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.article-cover {
    margin-bottom: 32px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.article-cover img {
    width: 100%;
    height: auto;
}

.article-body {
    margin-bottom: 32px;
}

.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.article-share span {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.share-btn {
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    background: var(--color-bg-alt);
    font-size: 0.85rem;
    transition: var(--transition);
}

.share-btn:hover {
    background: #D02127;
    color: #FFFFFF;
}

.article-nav {
    max-width: 800px;
    margin: 32px auto 0;
    display: flex;
    justify-content: space-between;
    gap: 16px;
}

.article-nav a {
    flex: 1;
    padding: 20px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.article-nav a:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
}

.article-nav-prev span,
.article-nav-next span {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 6px;
}

.article-nav-prev strong,
.article-nav-next strong {
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--color-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-nav-next {
    text-align: right;
}

/* ============================================
   关于我们页
   ============================================ */
.about-page-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-img-feature {
    height: 400px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--color-primary-dark);
    box-shadow: var(--shadow-md);
}

.about-page-content .section-tag {
    text-align: left;
    display: block;
}

.about-page-content .section-title {
    text-align: left;
    color: #5C0000;
}

/* 时间轴 */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--color-border);
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding-right: 50%;
    position: relative;
    margin-bottom: 32px;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    padding-right: 0;
    padding-left: 50%;
}

.timeline-year {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 56px;
    height: 56px;
    background: #D02127;
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    z-index: 2;
    box-shadow: var(--shadow-md);
}

.timeline-content {
    background: var(--color-white);
    padding: 20px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    max-width: 340px;
    margin: 0 24px;
}

.timeline-content h3 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: #5C0000;
    margin-bottom: 6px;
}

.timeline-content p {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* 荣誉 */
.honor-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.honor-card {
    background: var(--color-white);
    padding: 32px 24px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

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

.honor-icon {
    font-size: 2.2rem;
    margin-bottom: 12px;
}

.honor-card h3 {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    margin-bottom: 6px;
    color: #5C0000;
}

.honor-card p {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* 企业文化 */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.culture-card {
    background: var(--color-white);
    padding: 32px 24px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

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

.culture-icon {
    font-size: 2.2rem;
    margin-bottom: 12px;
}

.culture-card h3 {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    margin-bottom: 8px;
    color: #5C0000;
}

.culture-card p {
    font-size: 0.88rem;
    color: var(--color-text-light);
}

/* ============================================
   联系我们页
   ============================================ */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info-panel .section-tag {
    text-align: left;
    display: block;
}

.contact-info-panel .section-title {
    text-align: left;
}

.contact-desc {
    color: var(--color-text-light);
    margin-bottom: 32px;
    line-height: 1.7;
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon {
    width: 44px;
    height: 44px;
    background: var(--color-bg-alt);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-detail h4 {
    font-family: var(--font-serif);
    font-size: 1rem;
    margin-bottom: 4px;
    color: #5C0000;
}

.contact-detail p {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.contact-qrcode {
    display: flex;
    gap: 16px;
}

.contact-form-panel {
    background: var(--color-white);
    padding: 36px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.contact-form-panel h3 {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    margin-bottom: 24px;
    color: #5C0000;
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.alert-success {
    background: rgba(91,140,58,0.1);
    color: var(--color-green);
    border: 1px solid rgba(91,140,58,0.2);
}

.alert-error {
    background: rgba(139,0,0,0.08);
    color: #D02127;
    border: 1px solid rgba(231,76,60,0.2);
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--color-text);
}

.form-group .required {
    color: #E74C3C;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: inherit;
    background: var(--color-white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 3px rgba(139,69,19,0.08);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 地图 */
.section-map {
    padding: 0;
}

.map-container {
    width: 100%;
    height: 400px;
    overflow: hidden;
}

.map-container iframe {
    width: 100%;
    height: 400px;
    border: none;
    display: block;
}

/* ============================================
   空状态
   ============================================ */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-muted);
}

.empty-state p {
    font-size: 1rem;
    margin-bottom: 16px;
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1024px) {
    .advantage-grid,
    .product-grid,
    .news-grid,
    .honor-grid,
    .culture-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-layout,
    .about-page-layout,
    .contact-layout,
    .product-detail-layout {
        grid-template-columns: 1fr;
    }

    .product-gallery {
        position: static;
    }

    .hero-slider {
        height: 460px;
    }

    .slide-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .top-bar {
        display: none;
    }

    .main-header .container {
        height: 60px;
    }

    .main-nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    /* 修复：移动端菜单默认flex，通过right控制显示 */
    .mobile-menu {
        display: flex;
    }

    .logo-text h1 {
        font-size: 1.2rem;
    }

    .advantage-grid,
    .product-grid,
    .product-grid-large,
    .news-grid,
    .news-grid-large,
    .honor-grid,
    .culture-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero-slider {
        height: 380px;
    }

    .slide-title {
        font-size: 1.6rem;
    }

    .slide-subtitle {
        font-size: 1rem;
    }

    .section {
        padding: 48px 0;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .cta-box {
        flex-direction: column;
        text-align: center;
        padding: 32px 24px;
    }

    .cta-content h2 {
        font-size: 1.4rem;
    }

    .about-image {
        height: 300px;
    }

    .about-stats {
        gap: 16px;
    }

    .stat-num {
        font-size: 1.3rem;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item,
    .timeline-item:nth-child(even) {
        padding-left: 56px;
        padding-right: 0;
        justify-content: flex-start;
    }

    .timeline-year {
        left: 20px;
        transform: translateX(-50%);
        width: 44px;
        height: 44px;
        font-size: 0.75rem;
    }

    .timeline-content {
        max-width: 100%;
        margin: 0;
    }

    .contact-form .form-row {
        grid-template-columns: 1fr;
    }

    .article-main {
        padding: 24px;
    }

    .article-title {
        font-size: 1.4rem;
    }

    .article-nav {
        flex-direction: column;
    }

    .article-nav-next {
        text-align: left;
    }

    .product-detail-actions {
        flex-direction: column;
    }

    .filter-bar {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 8px;
    }

    .back-to-top {
        right: 16px;
        bottom: 16px;
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-slider {
        height: 320px;
    }

    .slide-title {
        font-size: 1.3rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.4rem;
    }
}


/* ============================================
   搜索页样式
   ============================================ */
.search-page-box {
    background: var(--color-white);
    padding: 32px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    margin-bottom: 32px;
}

.search-page-form {
    display: flex;
    gap: 12px;
    max-width: 600px;
    margin: 0 auto;
}

.search-page-form input {
    flex: 1;
    padding: 14px 20px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    background: var(--color-white);
    transition: var(--transition);
}

.search-page-form input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(139,0,0,0.08);
}

.search-page-form button {
    padding: 14px 28px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

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

.search-stats {
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--color-border);
}

.search-stats p {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: 16px;
}

.search-stats strong {
    color: var(--color-primary);
    font-weight: 700;
}

.search-tabs {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.tab-item {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    background: var(--color-bg-alt);
    color: var(--color-text-light);
    cursor: pointer;
    transition: var(--transition);
}

.tab-item.active,
.tab-item:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.search-section {
    margin-bottom: 48px;
}

.search-section-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--color-primary-dark);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-border);
}

.search-tips {
    text-align: center;
    padding: 40px 20px;
}

.search-tips h3 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--color-text);
    margin-bottom: 20px;
}

.hot-keywords {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.keyword-tag {
    padding: 10px 20px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    font-size: 0.9rem;
    color: var(--color-text);
    transition: var(--transition);
}

.keyword-tag:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-muted);
}

.empty-state p {
    font-size: 1rem;
    margin-bottom: 10px;
}