/* ============================================
   俊创顶墙官网 - 通用样式表
   ============================================ */

/* ---------- CSS 变量 ---------- */
:root {
    /* 主色调 - 金色系 */
    --primary-color: #c8a45c;
    --primary-dark: #b8943c;
    --primary-light: #d8b878;
    --secondary-color: #2c3e50;
    --secondary-dark: #1a252f;

    /* 背景色 */
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-warm: #fef7e8;
    --bg-dark: #2c3e50;

    /* 文字颜色 */
    --text-dark: #333333;
    --text-medium: #555555;
    --text-light: #888888;
    --text-white: #ffffff;
    --text-muted: #999999;

    /* 边框色 */
    --border-color: #e0e0e0;
    --border-light: #eeeeee;

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);

    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* 间距 */
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 20px;
    --spacing-lg: 40px;
    --spacing-xl: 60px;

    /* 过渡动画 */
    --transition: all 0.3s ease;
}

/* ---------- 基础重置 ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-white);
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
    list-style: none;
}

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

h1, h2, h3, h4, h5, h6 {
    color: var(--secondary-color);
    line-height: 1.3;
    font-weight: 600;
}

/* ---------- 通用布局类 ---------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 32px;
    color: var(--secondary-color);
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -10px;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-title p {
    color: var(--text-light);
    font-size: 15px;
    margin-top: 20px;
}

/* 滚动显现动画 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- 按钮通用 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 30px;
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-2px);
}

/* ---------- 头部 Header ---------- */
.header {
    background: var(--bg-white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

.header-top {
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-white);
}

.header-top-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
}

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

.header-logo h1 {
    margin: 0;
    line-height: 1;
}

.logo-img {
    height: 50px;
    width: auto;
}

.header-logo span {
    font-size: 14px;
    color: var(--text-light);
    padding-left: 12px;
    border-left: 1px solid var(--border-color);
    line-height: 1.2;
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 24px;
}

.header-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-medium);
    font-size: 14px;
}

.header-phone i {
    color: var(--primary-color);
    font-size: 16px;
}

/* ---------- 导航 Nav ---------- */
.nav-wrapper {
    background: var(--bg-white);
    border-top: 1px solid var(--border-light);
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.nav-list {
    display: flex;
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 18px 24px;
    color: var(--text-dark);
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 3px;
    background: var(--primary-color);
    transition: transform 0.3s ease;
    border-radius: 2px 2px 0 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 12px;
    flex-direction: column;
    gap: 5px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--secondary-color);
    transition: var(--transition);
}

/* ---------- Banner 轮播 ---------- */
.banner {
    position: relative;
    height: 520px;
    overflow: hidden;
    background: var(--secondary-dark);
}

.banner-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-slide.active {
    opacity: 1;
    z-index: 1;
}

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    filter: brightness(0.65);
}

.banner-text {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--text-white);
    padding: 0 20px;
    max-width: 800px;
}

.banner-text h2 {
    font-size: 48px;
    color: var(--text-white);
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 4px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.banner-text p {
    font-size: 20px;
    opacity: 0.95;
    letter-spacing: 2px;
}

/* 轮播指示器 */
.banner-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 12px;
}

.banner-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: var(--transition);
}

.banner-indicator.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

/* 轮播箭头 */
.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.3);
    border: none;
    color: var(--text-white);
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-arrow:hover {
    background: var(--primary-color);
}

.banner-arrow.prev {
    left: 30px;
}

.banner-arrow.next {
    right: 30px;
}

/* ---------- 产品分类入口 ---------- */
.category-section {
    background: var(--bg-light);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.category-card {
    background: var(--bg-white);
    padding: 35px 25px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: block;
}

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

.category-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 30px;
    transition: var(--transition);
}

.category-card:hover .category-icon {
    transform: scale(1.1) rotate(5deg);
}

.category-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.category-card p {
    color: var(--text-light);
    font-size: 13px;
    margin-bottom: 8px;
}

.category-count {
    font-size: 12px;
    color: var(--primary-color);
    background: var(--bg-warm);
    padding: 3px 12px;
    border-radius: 12px;
    display: inline-block;
    margin-top: 5px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
    padding: 15px 0;
    font-size: 14px;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb a {
    color: var(--text-medium);
}

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

.breadcrumb span:last-child {
    color: var(--primary-color);
}

/* ---------- 页面 Banner (子页面) ---------- */
.hero-banner {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    color: var(--text-white);
    padding: 70px 20px;
    text-align: center;
}

.hero-banner h1 {
    font-size: 34px;
    color: var(--text-white);
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.hero-banner p {
    font-size: 16px;
    opacity: 0.85;
}

.about-banner {
    background: linear-gradient(135deg, #3a5068 0%, #2c3e50 100%);
    color: var(--text-white);
    padding: 70px 0;
    text-align: center;
}

.about-banner h2 {
    font-size: 36px;
    color: var(--text-white);
    margin-bottom: 10px;
    letter-spacing: 3px;
}

.about-banner p {
    font-size: 16px;
    opacity: 0.85;
}

/* ---------- 关于我们 ---------- */
.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.intro-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.placeholder-about {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, var(--bg-warm) 0%, var(--bg-light) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    gap: 10px;
}

.placeholder-about i {
    font-size: 64px;
    color: var(--border-color);
    margin-bottom: 10px;
}

.placeholder-about span {
    font-size: 18px;
    font-weight: 500;
}

.placeholder-about small {
    font-size: 12px;
    color: var(--text-muted);
}

.intro-text h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.intro-text p {
    margin-bottom: 15px;
    color: var(--text-medium);
    line-height: 1.8;
    text-indent: 2em;
}

/* 发展历程时间轴 */
.timeline-section {
    background: var(--bg-light);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 20px 40px;
    box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    text-align: left;
}

.timeline-dot {
    position: absolute;
    top: 30px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid var(--bg-white);
    box-shadow: 0 0 0 2px var(--primary-color);
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -8px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -8px;
}

.timeline-content {
    background: var(--bg-white);
    padding: 20px 25px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.timeline-year {
    display: inline-block;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.timeline-content h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* 荣誉资质 */
.honor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.honor-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.honor-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.honor-image {
    height: 220px;
    background: linear-gradient(135deg, var(--bg-warm) 0%, var(--bg-light) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.honor-image i {
    font-size: 56px;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.honor-info {
    padding: 15px;
    text-align: center;
}

.honor-info h4 {
    font-size: 14px;
    color: var(--secondary-color);
}

/* ---------- 新闻资讯 ---------- */
.news-section {
    background: var(--bg-white);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.news-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.news-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-warm) 0%, #e8e4d4 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.placeholder-image i {
    font-size: 42px;
    color: var(--primary-color);
    opacity: 0.5;
    margin-bottom: 8px;
}

.placeholder-image small {
    font-size: 12px;
    color: var(--text-muted);
}

.news-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-date {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    color: var(--primary-color);
    background: var(--bg-warm);
    padding: 4px 10px;
    border-radius: 4px;
    align-self: flex-start;
    margin-bottom: 12px;
}

.news-title {
    font-size: 17px;
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-title:hover {
    color: var(--primary-color);
}

.news-desc,
.news-summary {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    flex: 1;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 500;
}

.news-link:hover {
    gap: 10px;
    color: var(--primary-dark);
}

.news-link i {
    font-size: 12px;
    transition: var(--transition);
}

/* 新闻内容页样式 */
.news-article {
    max-width: 900px;
    margin: 0 auto;
}

.news-article-header {
    text-align: center;
    padding: 30px 0 40px;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 40px;
}

.news-article-header h1 {
    font-size: 28px;
    line-height: 1.4;
    margin-bottom: 15px;
}

.news-article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    color: var(--text-light);
    font-size: 14px;
}

.news-article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.news-article-meta i {
    color: var(--primary-color);
}

.news-article-content {
    font-size: 16px;
    line-height: 2;
    color: var(--text-medium);
}

.news-article-content h3 {
    font-size: 20px;
    margin: 30px 0 15px;
    padding-left: 12px;
    border-left: 3px solid var(--primary-color);
}

.news-article-content p {
    margin-bottom: 16px;
    text-indent: 2em;
}

.news-back-link {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid var(--border-light);
    text-align: center;
}

/* 即将上线提示 */
.coming-soon {
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
}

.coming-soon i {
    font-size: 64px;
    color: var(--primary-color);
    margin-bottom: 20px;
    opacity: 0.6;
}

.coming-soon h2 {
    font-size: 24px;
    margin-bottom: 12px;
}

.coming-soon p {
    color: var(--text-light);
}

/* ---------- 产品列表 ---------- */
.products-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 30px;
    align-items: start;
}

.sidebar {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 120px;
}

.sidebar-title {
    font-size: 18px;
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
}

.products-main {
    min-width: 0;
}

.products-toolbar {
    background: var(--bg-white);
    padding: 15px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

.products-count {
    color: var(--text-light);
    font-size: 14px;
}

.products-count strong {
    color: var(--primary-color);
    font-size: 18px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.product-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: block;
}

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

.product-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.product-image .placeholder-product {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-warm) 0%, var(--bg-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.product-image .placeholder-product i {
    font-size: 48px;
    color: var(--border-color);
}

.product-info {
    padding: 18px;
}

.product-cat {
    display: inline-block;
    padding: 3px 10px;
    background: var(--bg-light);
    color: var(--text-light);
    font-size: 11px;
    border-radius: 10px;
    margin-bottom: 8px;
}

.product-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 5px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.product-series {
    font-size: 12px;
    color: var(--text-light);
}

/* 分页 */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.page-btn {
    min-width: 38px;
    height: 38px;
    padding: 0 14px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-medium);
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.page-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ---------- 产品详情页 ---------- */
.product-detail-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
    margin-bottom: var(--spacing-xl);
}

.product-gallery {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 120px;
}

.product-main-image {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--bg-warm) 0%, var(--bg-light) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    position: relative;
}

.product-main-image i {
    font-size: 80px;
    color: var(--border-color);
    margin-bottom: 15px;
}

.product-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    padding: 15px;
    border-top: 1px solid var(--border-light);
}

.product-thumb {
    aspect-ratio: 1;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

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

.product-info-detail h1 {
    font-size: 26px;
    line-height: 1.4;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.product-meta {
    padding: 20px;
    background: var(--bg-warm);
    border-radius: var(--radius-md);
    margin-bottom: 25px;
}

.product-meta-row {
    display: flex;
    padding: 8px 0;
    font-size: 14px;
    border-bottom: 1px dashed var(--border-color);
}

.product-meta-row:last-child {
    border-bottom: none;
}

.product-meta-label {
    width: 80px;
    color: var(--text-light);
    flex-shrink: 0;
}

.product-meta-value {
    color: var(--text-dark);
    flex: 1;
}

.product-summary {
    margin-bottom: 25px;
}

.product-summary h3,
.product-detail-section h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--secondary-color);
    padding-left: 12px;
    border-left: 3px solid var(--primary-color);
}

.product-summary p {
    color: var(--text-medium);
    line-height: 1.8;
}

.product-detail-section {
    background: var(--bg-white);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.product-detail-section p {
    color: var(--text-medium);
    line-height: 1.8;
    margin-bottom: 12px;
    text-indent: 2em;
}

.product-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 20px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 15px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
}

.feature-item i {
    color: var(--primary-color);
    font-size: 18px;
    margin-top: 3px;
    flex-shrink: 0;
}

.feature-item strong {
    display: block;
    margin-bottom: 4px;
    color: var(--secondary-color);
}

.feature-item small {
    color: var(--text-light);
    font-size: 13px;
    line-height: 1.5;
}

.product-actions {
    display: flex;
    gap: 15px;
    margin-top: 25px;
}

/* ---------- 联系我们 ---------- */
.contact-section {
    padding: var(--spacing-lg) 0;
}

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

.contact-info {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    border-radius: var(--radius-lg);
    padding: 40px;
    color: var(--text-white);
}

.contact-info h3 {
    color: var(--text-white);
    font-size: 24px;
    margin-bottom: 10px;
}

.contact-info > p {
    opacity: 0.8;
    margin-bottom: 30px;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-info-item .icon {
    width: 45px;
    height: 45px;
    min-width: 45px;
    border-radius: 50%;
    background: rgba(200, 164, 92, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 18px;
}

.contact-info-item strong {
    display: block;
    color: var(--text-white);
    margin-bottom: 4px;
    font-size: 14px;
}

.contact-info-item p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    line-height: 1.6;
}

.contact-form-wrap {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.contact-form-wrap h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.contact-form-wrap > p {
    color: var(--text-light);
    margin-bottom: 25px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-medium);
}

.form-group label .required {
    color: #e74c3c;
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    font-size: 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: var(--bg-white);
    color: var(--text-dark);
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(200, 164, 92, 0.1);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.contact-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-top: 40px;
    box-shadow: var(--shadow-sm);
    height: 350px;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--border-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.contact-map i {
    font-size: 64px;
    margin-right: 20px;
    color: var(--primary-color);
    opacity: 0.5;
}

/* ---------- 招商加盟 ---------- */
.join-hero {
    background: linear-gradient(135deg, #b8943c 0%, #c8a45c 50%, #d8b878 100%);
    color: var(--text-white);
    padding: 80px 0;
    text-align: center;
}

.join-hero h1 {
    font-size: 42px;
    color: var(--text-white);
    margin-bottom: 15px;
    letter-spacing: 4px;
}

.join-hero p {
    font-size: 18px;
    opacity: 0.9;
}

.join-advantages {
    background: var(--bg-light);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.advantage-card {
    background: var(--bg-white);
    padding: 35px 25px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.advantage-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 28px;
}

.advantage-card h4 {
    font-size: 17px;
    margin-bottom: 10px;
}

.advantage-card p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.7;
}

.join-process {
    background: var(--bg-white);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
    position: relative;
    margin-top: 30px;
}

.process-step {
    text-align: center;
    position: relative;
    padding: 20px 10px;
}

.process-num {
    width: 50px;
    height: 50px;
    margin: 0 auto 15px;
    border-radius: 50%;
    background: var(--primary-color);
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    position: relative;
    z-index: 2;
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 45px;
    left: 70%;
    width: 60%;
    height: 2px;
    background: var(--border-color);
    z-index: 1;
}

.process-step h5 {
    font-size: 14px;
    margin-bottom: 6px;
}

.process-step p {
    font-size: 12px;
    color: var(--text-light);
}

.join-conditions {
    background: var(--bg-light);
}

.conditions-list {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.conditions-list li {
    padding: 12px 0;
    border-bottom: 1px dashed var(--border-light);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-medium);
    line-height: 1.7;
}

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

.conditions-list i {
    color: var(--primary-color);
    margin-top: 5px;
    flex-shrink: 0;
}

/* ---------- 底部 Footer ---------- */
.footer {
    background: var(--secondary-dark);
    color: var(--text-white);
    padding-top: 60px;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.3fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-brand {
    min-width: 0;
}

.footer-logo-img {
    height: 45px;
    width: auto;
    margin-bottom: 15px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-qrcode-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.footer-qrcode-item {
    text-align: center;
}

.footer-qrcode-item img {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-sm);
    margin-bottom: 6px;
    object-fit: cover;
    background: var(--bg-white);
    padding: 2px;
}

.footer-qrcode-item span {
    display: block;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.55);
}

.footer-column h4 {
    color: var(--primary-color);
    font-size: 16px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 1px;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--primary-color);
    padding-left: 4px;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.5;
}

.footer-contact-item i {
    color: var(--primary-color);
    margin-top: 4px;
    min-width: 16px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 25px 0;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
    margin-bottom: 8px;
}

.footer-bottom p:last-child {
    margin-bottom: 0;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
    transition: var(--transition);
}

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

/* ---------- 站点地图 ---------- */
.sitemap-wrap {
    padding: 40px 0 60px;
}

.sitemap-section {
    margin-bottom: 30px;
}

.sitemap-section h2 {
    color: var(--primary-color);
    font-size: 20px;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-light);
}

.sitemap-section ul {
    padding-left: 5px;
}

.sitemap-section li {
    margin-bottom: 10px;
}

.sitemap-section a {
    color: var(--text-medium);
    text-decoration: none;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.sitemap-section a:hover {
    color: var(--primary-color);
}

.sitemap-section a i {
    color: var(--primary-color);
    font-size: 12px;
    width: 16px;
}

/* ---------- 响应式设计 ---------- */
@media (max-width: 1024px) {
    .section-title h2 {
        font-size: 28px;
    }

    .banner {
        height: 420px;
    }

    .banner-text h2 {
        font-size: 36px;
    }

    .banner-text p {
        font-size: 17px;
    }

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

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

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

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

    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

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

    .process-step:not(:last-child)::after {
        display: none;
    }

    .intro-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .product-detail-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .product-gallery {
        position: static;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 40px 0;
    }

    .section-title {
        margin-bottom: 30px;
    }

    .section-title h2 {
        font-size: 24px;
    }

    .header-top-inner {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    .header-logo {
        flex-direction: column;
        align-items: center;
        gap: 8px;
    }

    .header-logo span {
        border-left: none;
        padding-left: 0;
        padding-top: 5px;
        border-top: 1px solid var(--border-color);
    }

    .header-contact {
        gap: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav {
        padding: 12px 20px;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-list {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
        z-index: 100;
    }

    .nav-list.open {
        max-height: 500px;
    }

    .nav-item {
        width: 100%;
    }

    .nav-link {
        padding: 15px 25px;
        border-bottom: 1px solid var(--border-light);
    }

    .nav-link::after {
        display: none;
    }

    .nav-link.active {
        background: var(--bg-warm);
    }

    .banner {
        height: 320px;
    }

    .banner-text h2 {
        font-size: 26px;
        letter-spacing: 2px;
    }

    .banner-text p {
        font-size: 15px;
        letter-spacing: 1px;
    }

    .banner-arrow {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    .banner-arrow.prev {
        left: 10px;
    }

    .banner-arrow.next {
        right: 10px;
    }

    .category-grid,
    .news-grid,
    .product-grid,
    .honor-grid,
    .advantages-grid,
    .product-features,
    .contact-grid {
        grid-template-columns: 1fr;
    }

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

    .timeline-item {
        width: 100%;
        padding-left: 50px !important;
        padding-right: 15px !important;
        text-align: left !important;
    }

    .timeline-item:nth-child(even) {
        left: 0;
    }

    .timeline-item:nth-child(odd) .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 12px;
    }

    .products-layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

    .footer-qrcode-group {
        justify-content: flex-start;
    }

    .contact-info,
    .contact-form-wrap,
    .conditions-list {
        padding: 25px;
    }

    .product-detail-section {
        padding: 20px;
    }

    .hero-banner {
        padding: 50px 20px;
    }

    .hero-banner h1 {
        font-size: 26px;
    }

    .about-banner h2 {
        font-size: 28px;
    }

    .join-hero h1 {
        font-size: 30px;
        letter-spacing: 2px;
    }

    .join-hero {
        padding: 60px 20px;
    }

    .placeholder-about {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .logo-img {
        height: 40px;
    }

    .header-phone {
        font-size: 13px;
    }

    .banner-text h2 {
        font-size: 22px;
    }

    .btn {
        padding: 10px 22px;
        font-size: 14px;
    }

    .footer-qrcode-item img {
        width: 60px;
        height: 60px;
    }
}