/* ========== 全局重置与变量 ========== */
:root {
    --primary: #e85d04;
    --primary-dark: #d45203;
    --primary-light: #ff8c42;
    --secondary: #2b9348;
    --dark: #1a1a2e;
    --dark-light: #2d2d44;
    --gray: #6c757d;
    --gray-light: #adb5bd;
    --light: #f8f9fa;
    --white: #ffffff;
    --border: #e9ecef;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --transition: all 0.3s ease;
    --radius: 12px;
    --radius-sm: 8px;
    --max-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--dark);
    line-height: 1.7;
    background: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

ul {
    list-style: none;
}

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

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    letter-spacing: 0.5px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(232,93,4,0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

.btn-block {
    width: 100%;
    justify-content: center;
}

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

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.06);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
}

.logo-icon {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #2E7D32, #4CAF50);
    border-radius: 8px;
    flex-shrink: 0;
}

.logo-md {
    font-size: 18px;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.5px;
    line-height: 1;
}

.logo-dot {
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: 6px;
    height: 6px;
    background: #A5D6A7;
    border-radius: 50%;
}

.logo img {
    height: 36px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links a {
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 500;
    color: var(--dark);
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.hamburger span {
    width: 24px;
    height: 2.5px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========== Hero 轮播 ========== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

.hero-slider {
    height: 100%;
}

.slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1s ease;
}

.slide.active {
    opacity: 1;
}

.slide-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.slide-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26,26,46,0.75) 0%, rgba(26,26,46,0.4) 100%);
}

.slide-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: var(--white);
}

.slide-content h1 {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
    animation: fadeInUp 0.8s ease;
}

.slide-content p {
    font-size: 20px;
    line-height: 1.8;
    margin-bottom: 36px;
    opacity: 0.9;
    animation: fadeInUp 1s ease;
}

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

.slider-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 3;
}

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

.dot.active {
    background: var(--primary);
    transform: scale(1.3);
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.4);
    background: rgba(255,255,255,0.1);
    color: var(--white);
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.slider-arrow.prev { left: 30px; }
.slider-arrow.next { right: 30px; }

/* ========== 通用区块标题 ========== */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 14px;
}

.section-header p {
    font-size: 17px;
    color: var(--gray);
}

.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 48px;
}

/* ========== 核心优势 ========== */
.features {
    padding: 100px 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.features-grid.features-four {
    grid-template-columns: repeat(4, 1fr);
}

.feature-card {
    text-align: center;
    padding: 40px 28px;
    border-radius: var(--radius);
    background: var(--white);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.feature-icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    background: linear-gradient(135deg, #fff3e0, #ffe0b2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.feature-icon i {
    font-size: 30px;
    color: var(--primary);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.feature-card p {
    color: var(--gray);
    font-size: 14px;
    line-height: 1.8;
}

/* ========== 生态养殖 ========== */
.farming-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f0f7f0 0%, #e8f5e9 100%);
}

.farming-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.farming-card {
    text-align: center;
    padding: 40px 28px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

.farming-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary);
}

.farming-icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.farming-icon i {
    font-size: 30px;
    color: var(--secondary);
}

.farming-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.farming-content p {
    color: var(--gray);
    font-size: 14px;
    line-height: 1.8;
}

/* ========== 关于我们预览 ========== */
.about-preview {
    padding: 100px 0;
    background: var(--light);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: var(--radius);
    width: 100%;
    object-fit: cover;
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--primary);
    color: var(--white);
    padding: 24px 32px;
    border-radius: var(--radius);
    text-align: center;
}

.experience-badge .number {
    display: block;
    font-size: 36px;
    font-weight: 800;
    line-height: 1;
}

.experience-badge .text {
    font-size: 14px;
    opacity: 0.9;
}

.about-content h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
}

.about-content .subtitle {
    font-size: 18px;
    color: var(--primary);
    margin-bottom: 24px;
    font-weight: 500;
}

.about-content p {
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.9;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: 32px 0;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 13px;
    color: var(--gray);
    margin-top: 4px;
}

/* ========== 产品分类 ========== */
.product-categories {
    padding: 100px 0;
    background: var(--white);
}

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

.category-card {
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    display: block;
    text-decoration: none;
    color: inherit;
}

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

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

.category-img {
    height: 260px;
    overflow: hidden;
}

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

.category-card:hover .category-img img {
    transform: scale(1.08);
}

.category-info {
    padding: 20px;
    text-align: center;
    background: var(--white);
}

.category-info i {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 8px;
}

.category-info h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
}

.category-info p {
    font-size: 13px;
    color: var(--gray);
}

/* ========== 品牌战略区域 ========== */
.brand-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #2d2d44 100%);
    color: var(--white);
}

.brand-section .section-header h2 {
    color: var(--white);
}

.brand-section .section-header p {
    color: rgba(255,255,255,0.7);
}

.brand-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.brand-card {
    text-align: center;
    padding: 40px 24px;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.1);
    transition: var(--transition);
}

.brand-card:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-6px);
    border-color: var(--primary);
}

.brand-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(232,93,4,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.brand-icon i {
    font-size: 28px;
    color: var(--primary);
}

.brand-content h3 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--primary);
}

.brand-content p {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
}

/* ========== 五大业务板块（关于页面） ========== */
.business-section {
    padding: 80px 0;
    background: var(--light);
}

.business-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.business-card {
    display: flex;
    gap: 28px;
    padding: 32px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    align-items: flex-start;
}

.business-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--primary);
}

.business-num {
    font-size: 42px;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.3;
    line-height: 1;
    flex-shrink: 0;
    min-width: 60px;
}

.business-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

.business-content h3 i {
    color: var(--primary);
    font-size: 22px;
}

.business-content p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.8;
}

/* ========== 供应链体系 ========== */
.supply-section {
    padding: 100px 0;
    background: var(--light);
}

.supply-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.supply-card {
    text-align: center;
    padding: 40px 28px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

.supply-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.supply-icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    background: linear-gradient(135deg, #fff3e0, #ffe0b2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.supply-icon i {
    font-size: 30px;
    color: var(--primary);
}

.supply-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.supply-content p {
    color: var(--gray);
    font-size: 14px;
    line-height: 1.8;
}

/* ========== 新闻预览 ========== */
.news-preview {
    padding: 100px 0;
    background: var(--light);
}

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

.news-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

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

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

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

.news-date {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: var(--primary);
    color: var(--white);
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.news-content {
    padding: 20px;
}

.news-content h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-content h3 a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.news-content h3 a:hover {
    color: var(--primary);
}

.news-content p {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 14px;
    line-height: 1.7;
}

.read-more {
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.read-more:hover {
    gap: 10px;
}

/* ========== 合作伙伴 ========== */
.partners {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8faf8 0%, #f0f7f0 100%);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.partner-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 24px;
    background: var(--white);
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    transition: var(--transition);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.partner-item:hover {
    background: var(--secondary);
    color: var(--white);
    transform: translateY(-3px);
    border-color: var(--secondary);
}

.partner-item i {
    color: var(--secondary);
    font-size: 20px;
}

.partner-item:hover i {
    color: var(--white);
}

.partners-desc {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 32px;
    color: var(--gray);
    font-size: 15px;
    line-height: 1.8;
}

.partners-note {
    text-align: center;
    color: var(--gray);
    font-size: 13px;
    margin-top: 24px;
    opacity: 0.7;
}

/* ========== CTA ========== */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary) 0%, #ff6b35 100%);
    text-align: center;
    color: var(--white);
}

.cta h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 14px;
}

.cta p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* ========== 页面标题 ========== */
.page-header {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    text-align: center;
    color: var(--white);
}

.page-header h1 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 12px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.85;
}

/* ========== 生产实力 ========== */
.production-section {
    padding: 80px 0 40px;
    background: var(--white);
}

.production-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.production-card {
    text-align: center;
    padding: 36px 24px;
    background: var(--light);
    border-radius: var(--radius);
    transition: var(--transition);
    border: 1px solid transparent;
}

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

.production-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, #fff3e0, #ffe0b2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.production-icon i {
    font-size: 26px;
    color: var(--primary);
}

.production-content h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}

.production-content p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

/* ========== 产品页面 ========== */
.products-section {
    padding: 60px 0 80px;
}

.filter-bar {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border-radius: 50px;
    border: 2px solid var(--border);
    background: var(--white);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    color: var(--dark);
}

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

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

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

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

.product-img {
    position: relative;
    height: 240px;
    overflow: hidden;
}

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

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

.product-tag {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--primary);
    color: var(--white);
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.product-tag.new {
    background: var(--secondary);
}

.product-info {
    padding: 20px;
}

.product-category {
    font-size: 12px;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.product-info h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 6px 0 8px;
}

.product-info p {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 10px;
}

.product-spec {
    font-size: 13px;
    color: var(--gray-light);
    font-weight: 500;
}

/* ========== 新闻页面 ========== */
.news-section {
    padding: 60px 0 80px;
}

.news-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.tab-btn {
    padding: 10px 28px;
    border-radius: 50px;
    border: 2px solid var(--border);
    background: var(--white);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.news-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.news-item {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 30px;
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.news-item-img {
    height: 100%;
    min-height: 220px;
}

.news-item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-item-content {
    padding: 28px 28px 28px 0;
}

.news-category {
    display: inline-block;
    background: #fff3e0;
    color: var(--primary);
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 10px;
}

.news-item-content .news-date {
    position: static;
    display: inline-block;
    margin-left: 10px;
    background: transparent;
    color: var(--gray);
    padding: 0;
    font-size: 13px;
}

.news-item-content h3 {
    font-size: 22px;
    font-weight: 700;
    margin: 10px 0 14px;
}

.news-item-content p {
    color: var(--gray);
    margin-bottom: 10px;
    font-size: 15px;
}

/* 新闻详情展开 */
.news-detail {
    padding: 16px;
    background: var(--light);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary);
    margin: 12px 0;
    animation: fadeIn 0.3s ease;
}

.news-detail p {
    margin-bottom: 10px;
}

.news-detail ul {
    list-style: disc;
    padding-left: 20px;
    margin-bottom: 10px;
}

.news-detail ul li {
    color: var(--gray);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 6px;
}

.news-detail ul li strong {
    color: var(--dark);
}

/* 新闻图片链接 */
.news-img-link {
    display: block;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========== 关于页面 ========== */
.about-intro {
    padding: 80px 0;
}

.about-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-intro-image img {
    border-radius: var(--radius);
    width: 100%;
}

.about-intro-content h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
}

.about-intro-content p {
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.9;
}

/* 发展历程 */
.timeline-section {
    padding: 80px 0;
    background: var(--light);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 48px;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-year {
    flex: 0 0 120px;
    text-align: center;
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    padding-top: 8px;
}

.timeline-content {
    flex: 1;
    background: var(--white);
    padding: 24px 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    position: relative;
    margin: 0 30px;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 24px;
    width: 14px;
    height: 14px;
    background: var(--primary);
    border-radius: 50%;
    border: 3px solid var(--white);
    box-shadow: 0 0 0 3px var(--primary);
}

.timeline-item:nth-child(odd) .timeline-content::before {
    left: -37px;
}

.timeline-item:nth-child(even) .timeline-content::before {
    right: -37px;
}

.timeline-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--primary);
}

.timeline-content p {
    font-size: 14px;
    color: var(--gray);
}

/* 企业文化 */
.culture-section {
    padding: 80px 0;
    background: var(--white);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.culture-card {
    text-align: center;
    padding: 40px 24px;
    border-radius: var(--radius);
    border: 2px solid var(--border);
    transition: var(--transition);
}

.culture-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.culture-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, #fff3e0, #ffe0b2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.culture-icon i {
    font-size: 26px;
    color: var(--primary);
}

.culture-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.culture-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

/* 创始人介绍 */
.founder-section {
    padding: 80px 0;
    background: var(--light);
}

.founder-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.founder-image img {
    border-radius: var(--radius);
    width: 100%;
    object-fit: cover;
}

.founder-content h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
}

.founder-content h3 span {
    font-size: 16px;
    font-weight: 500;
    color: var(--gray);
    margin-left: 8px;
}

.founder-content p {
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.9;
}

/* 组织架构 */
.org-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f6f2 0%, #f0ece4 100%);
}

.org-section .section-subtitle {
    text-align: center;
    font-size: 20px;
    color: var(--primary);
    font-weight: 600;
    margin-top: -36px;
    margin-bottom: 16px;
}

.org-desc {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 48px;
    color: var(--gray);
    line-height: 1.8;
    font-size: 15px;
}

.org-chart {
    max-width: 900px;
    margin: 0 auto;
}

.org-top {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

.org-box {
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    text-align: center;
    min-width: 140px;
}

.org-company {
    background: linear-gradient(135deg, #c9a96e, #b8956a);
    color: var(--white);
    font-size: 17px;
    padding: 16px 40px;
}

.org-manager {
    background: linear-gradient(135deg, #c9a96e, #b8956a);
    color: var(--white);
}

.org-office {
    background: linear-gradient(135deg, #d4b896, #c9a96e);
    color: var(--white);
}

.org-line-v {
    width: 2px;
    height: 24px;
    background: linear-gradient(to bottom, #c9a96e, #d4b896);
}

.org-line-h {
    width: 80%;
    height: 2px;
    background: linear-gradient(to right, transparent, #c9a96e, transparent);
    margin: 0 auto;
}

.org-branches {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 24px;
}

.org-branch {
    text-align: center;
}

.org-center {
    background: linear-gradient(135deg, #c9a96e, #b8956a);
    color: var(--white);
    margin-bottom: 16px;
    padding: 12px 20px;
}

.org-depts {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.org-depts li {
    padding: 10px 14px;
    background: var(--white);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--dark);
    border: 1px solid #e8e0d4;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    transition: var(--transition);
}

.org-depts li:hover {
    border-color: var(--primary);
    background: #fff8f0;
    transform: translateX(4px);
}

/* 质管体系 */
.quality-section {
    padding: 80px 0;
    background: var(--white);
}

.quality-section .section-subtitle {
    text-align: center;
    font-size: 20px;
    color: var(--primary);
    font-weight: 600;
    margin-top: -36px;
    margin-bottom: 48px;
}

.quality-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.quality-card {
    display: flex;
    align-items: center;
    gap: 32px;
    padding: 32px 40px;
    background: var(--light);
    border-radius: var(--radius);
    border-left: 4px solid var(--primary);
    transition: var(--transition);
}

.quality-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow);
}

.quality-card:nth-child(2) {
    flex-direction: row-reverse;
    border-left: none;
    border-right: 4px solid var(--primary);
}

.quality-card:nth-child(2):hover {
    transform: translateX(-8px);
}

.quality-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 100px;
    text-align: center;
    flex-shrink: 0;
}

.quality-step .step-label {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.3;
}

.quality-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
}

.quality-content p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.7;
}

/* 资质荣誉 */
.honors-section {
    padding: 80px 0;
    background: var(--light);
}

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

.honor-card {
    text-align: center;
    padding: 36px 24px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.honor-card i {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: 16px;
}

.honor-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.honor-card p {
    font-size: 14px;
    color: var(--gray);
}

/* ========== 联系页面 ========== */
.contact-section {
    padding: 60px 0 80px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h2,
.contact-form-wrap h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.contact-info > p,
.contact-form-wrap > p {
    color: var(--gray);
    margin-bottom: 30px;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-card {
    display: flex;
    gap: 16px;
    padding: 20px;
    border-radius: var(--radius-sm);
    background: var(--light);
    transition: var(--transition);
}

.contact-card:hover {
    background: #fff3e0;
}

.contact-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-card-icon i {
    color: var(--white);
    font-size: 20px;
}

.contact-card-content h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
}

.contact-card-content p {
    font-size: 14px;
    color: var(--gray);
}

.contact-qr {
    display: flex;
    gap: 30px;
    margin-top: 30px;
}

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

.qr-placeholder {
    width: 100px;
    height: 100px;
    background: var(--light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    color: var(--gray);
}

.qr-item span {
    font-size: 13px;
    color: var(--gray);
}

/* 表单 */
.contact-form {
    background: var(--white);
}

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

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
}

.form-group label span {
    color: var(--primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    color: var(--dark);
    transition: var(--transition);
    background: var(--light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(232,93,4,0.1);
}

.form-group textarea {
    resize: vertical;
}


/* ========== 合作流程 ========== */
.flow-section {
    padding: 80px 0;
    background: var(--white);
}

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

.flow-step {
    text-align: center;
    padding: 32px 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
    position: relative;
}

.flow-step:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}

.flow-num {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary-light);
    margin-bottom: 12px;
}

.flow-content h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
}

.flow-content p {
    color: var(--gray);
    font-size: 14px;
    line-height: 1.7;
}

/* ========== 常见问题 ========== */
.faq-section {
    padding: 80px 0;
    background: var(--light);
}

.faq-list {
    max-width: 860px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius);
    margin-bottom: 14px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    color: var(--dark);
    transition: var(--transition);
    user-select: none;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question i {
    transition: transform 0.3s ease;
    color: var(--gray);
}

.faq-item.open .faq-question i {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-answer p {
    padding: 0 24px 18px;
    color: var(--gray);
    font-size: 14px;
    line-height: 1.8;
}

.faq-item.open .faq-answer {
    max-height: 200px;
}

/* 地图 */
.map-section {
    height: 400px;
}

.map-placeholder {
    height: 100%;
    background: linear-gradient(135deg, #e9ecef 0%, #dee2e6 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-overlay {
    text-align: center;
    color: var(--gray);
}

.map-overlay i {
    margin-bottom: 16px;
    color: var(--primary);
}

.map-overlay h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: var(--dark);
}

/* ========== 页脚 ========== */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-brand h3 i {
    color: var(--secondary);
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-col h4 {
    color: var(--white);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}

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

.footer-col ul li a {
    font-size: 14px;
    transition: var(--transition);
}

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

.footer-contact ul li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: rgba(255,255,255,0.6);
}

.footer-contact ul li i {
    color: var(--primary);
    margin-top: 4px;
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
}

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

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

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
    .features-grid,
    .categories-grid,
    .supply-grid,
    .production-grid,
    .farming-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .flow-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    .features-grid.features-four {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .brand-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .about-grid,
    .about-intro-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-stats {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .culture-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .honors-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 4px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-links a {
        display: block;
        padding: 12px 20px;
        text-align: center;
    }
    
    .hero {
        height: 80vh;
        min-height: 500px;
    }
    
    .slide-content h1 {
        font-size: 32px;
    }
    
    .slide-content p {
        font-size: 16px;
    }
    
    .slider-arrow {
        display: none;
    }
    
    .section-header h2,
    .cta h2 {
        font-size: 28px;
    }
    
    .features-grid,
    .categories-grid,
    .news-grid,
    .partners-grid,
    .production-grid,
    .farming-grid {
        grid-template-columns: 1fr;
    }
    
    .flow-steps {
        grid-template-columns: 1fr;
    }
    .features-grid.features-four {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .brand-grid {
        grid-template-columns: 1fr;
    }
    
    .business-card {
        flex-direction: column;
        gap: 16px;
        padding: 24px;
    }
    
    .business-num {
        font-size: 32px;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .products-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .news-item {
        grid-template-columns: 1fr;
    }
    
    .news-item-img {
        height: 200px;
    }
    
    .news-item-content {
        padding: 0 20px 20px;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        flex-direction: row;
    }
    
    .timeline-year {
        flex: 0 0 70px;
        font-size: 20px;
    }
    
    .timeline-content {
        margin-left: 30px;
        margin-right: 0;
    }
    
    .timeline-content::before,
    .timeline-item:nth-child(odd) .timeline-content::before,
    .timeline-item:nth-child(even) .timeline-content::before {
        left: -37px;
        right: auto;
    }
    
    .culture-grid,
    .honors-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .founder-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .org-branches {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        padding: 100px 0 40px;
    }
    
    .page-header h1 {
        font-size: 32px;
    }
    
    .experience-badge {
        bottom: -10px;
        right: -10px;
        padding: 16px 20px;
    }
    
    .experience-badge .number {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid.features-four {
        grid-template-columns: 1fr;
    }
    
    .culture-grid,
    .honors-grid {
        grid-template-columns: 1fr;
    }
    
    .org-branches {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-qr {
        flex-direction: column;
        align-items: center;
    }
    
    .slide-content h1 {
        font-size: 26px;
    }
}