/* mirror_flow:p6_ai_generated */
/* ===== CSS 变量 ===== */
:root {
    --color-primary: #b2894c;
    --color-primary-dark: #9a7340;
    --color-primary-light: #c9a56b;
    --color-accent: #b78d4b;
    --color-dark: #1d1d1d;
    --color-dark-secondary: #2a2a2a;
    --color-gray: #999;
    --color-gray-light: #f5f5f5;
    --color-gray-medium: #e0e0e0;
    --color-white: #ffffff;
    --color-text: #333333;
    --color-text-light: #666666;
    --font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    --container-max: 1200px;
    --header-height: 80px;
    --section-padding: 60px;
    --transition-base: all 0.3s ease;
    --border-radius: 4px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
}

/* ===== 重置样式 ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    overflow-x: hidden;
    min-width: 320px;
}

ul,
ol {
    list-style: none;
}

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

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

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

input,
textarea {
    font-family: inherit;
    outline: none;
}

/* ===== 容器 ===== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 15px;
}

.container-fluid {
    width: 100%;
    padding: 0 15px;
}

/* ===== 顶部栏 ===== */
.top-bar {
    background-color: var(--color-dark);
    color: var(--color-gray);
    font-size: 12px;
    padding: 8px 0;
    display: none;
}

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

.top-bar a {
    color: var(--color-gray);
}

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

.top-bar .contact-info span {
    margin-right: 20px;
}

.top-bar .contact-info i {
    margin-right: 5px;
    color: var(--color-primary);
}

@media (min-width: 768px) {
    .top-bar {
        display: block;
    }
}

/* ===== 头部导航 ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    height: var(--header-height);
    display: flex;
    align-items: center;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

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

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

.logo .logo-text {
    margin-left: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--color-dark);
}

.logo .logo-text span {
    color: var(--color-primary);
}

/* 导航菜单 */
.nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 28px 18px;
    font-size: 15px;
    color: var(--color-text);
    font-weight: 500;
    white-space: nowrap;
    transition: var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 20px;
    left: 18px;
    right: 18px;
    height: 2px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

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

/* 移动端菜单按钮 */
.mobile-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    width: 28px;
    background: transparent;
    padding: 4px 0;
}

.mobile-toggle span {
    display: block;
    height: 2px;
    background-color: var(--color-dark);
    border-radius: 2px;
    transition: var(--transition-base);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 991px) {
    .nav-list {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 20px 0;
        box-shadow: var(--shadow-md);
        transform: translateY(-120%);
        transition: transform 0.4s ease;
        z-index: 999;
    }

    .nav-list.open {
        transform: translateY(0);
    }

    .nav-link {
        padding: 14px 30px;
        text-align: center;
        font-size: 16px;
    }

    .nav-link::after {
        bottom: 8px;
        left: 30%;
        right: 30%;
    }
}

@media (min-width: 992px) {
    .mobile-toggle {
        display: none;
    }

    .nav-list {
        display: flex;
        position: static;
        flex-direction: row;
        padding: 0;
        box-shadow: none;
        transform: none;
    }
}

/* ===== Banner / 轮播区 ===== */
.banner {
    position: relative;
    overflow: hidden;
    background-color: var(--color-dark);
}

.banner-slider {
    display: flex;
    transition: transform 0.5s ease;
}

.banner-slide {
    min-width: 100%;
    position: relative;
}

.banner-slide img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.banner-slide .slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--color-white);
    width: 90%;
}

.banner-slide .slide-content h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.banner-slide .slide-content p {
    font-size: 16px;
    margin-bottom: 20px;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.banner-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.banner-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition-base);
}

.banner-dot.active {
    background: var(--color-primary);
}

@media (min-width: 768px) {
    .banner-slide img {
        height: 420px;
    }

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

    .banner-slide .slide-content p {
        font-size: 18px;
    }
}

@media (min-width: 1200px) {
    .banner-slide img {
        height: 520px;
    }

    .banner-slide .slide-content h2 {
        font-size: 44px;
    }
}

/* ===== 通用区块标题 ===== */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header .subtitle {
    font-size: 14px;
    color: var(--color-primary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.section-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
}

.section-header .divider {
    display: inline-block;
    width: 60px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
}

@media (min-width: 768px) {
    .section-header h2 {
        font-size: 32px;
    }
}

/* ===== 关于我们 ===== */
.about-section {
    padding: var(--section-padding) 0;
    background-color: var(--color-white);
}

.about-section .about-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    align-items: center;
}

.about-section .about-image {
    flex: 1 1 100%;
}

.about-section .about-image img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.about-section .about-content {
    flex: 1 1 100%;
}

.about-section .about-content h3 {
    font-size: 22px;
    color: var(--color-dark);
    margin-bottom: 16px;
}

.about-section .about-content p {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 12px;
}

@media (min-width: 768px) {
    .about-section .about-image {
        flex: 1 1 45%;
    }

    .about-section .about-content {
        flex: 1 1 45%;
    }
}

/* ===== 产品展示区 ===== */
.products-section {
    padding: var(--section-padding) 0;
    background-color: var(--color-gray-light);
}

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

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

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

.product-card .product-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
}

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

.product-card:hover .product-image img {
    transform: scale(1.06);
}

.product-card .product-image .product-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 4px 12px;
    font-size: 12px;
    border-radius: 3px;
}

.product-card .product-info {
    padding: 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card .product-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 8px;
}

.product-card .product-info p {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.6;
    flex: 1;
    margin-bottom: 12px;
}

.product-card .product-info .product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--color-gray);
}

.product-card .product-info .product-meta .price {
    color: var(--color-primary);
    font-weight: 700;
    font-size: 18px;
}

@media (min-width: 576px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== 服务优势区 ===== */
.advantages-section {
    padding: var(--section-padding) 0;
    background-color: var(--color-white);
}

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

.advantage-item {
    text-align: center;
    padding: 30px 20px;
    border-radius: var(--border-radius);
    background: var(--color-gray-light);
    transition: var(--transition-base);
}

.advantage-item:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.advantage-item .advantage-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.advantage-item h4 {
    font-size: 16px;
    color: var(--color-dark);
    margin-bottom: 8px;
    font-weight: 600;
}

.advantage-item p {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.6;
}

@media (min-width: 576px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .advantages-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===== 案例展示 ===== */
.cases-section {
    padding: var(--section-padding) 0;
    background-color: var(--color-gray-light);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 20px;
}

.case-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 3 / 2;
}

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

.case-item .case-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(29, 29, 29, 0.85), rgba(29, 29, 29, 0.15));
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
    transition: var(--transition-base);
}

.case-item .case-overlay h4 {
    color: var(--color-white);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.case-item .case-overlay span {
    color: var(--color-primary-light);
    font-size: 13px;
}

.case-item:hover img {
    transform: scale(1.08);
}

@media (min-width: 576px) {
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .cases-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== 新闻/资讯 ===== */
.news-section {
    padding: var(--section-padding) 0;
    background-color: var(--color-white);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 800px