/* 潍坊沃土优品生态农业有限公司 - 企业官网样式 (至尊版) */

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

:root {
    /* 主色调 - 深邃生态绿 */
    --primary: #0f7b4a;
    --primary-dark: #0a5c36;
    --primary-light: #1fa863;
    --primary-glow: rgba(15, 123, 74, 0.25);
    
    /* 辅助色系 */
    --secondary: #10b981;
    --accent: #059669;
    
    /* 画布色系 - 更纯净 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8faf9;
    --bg-tertiary: #f0f5f2;
    --bg-gradient: linear-gradient(135deg, #f8faf9 0%, #e8f5ed 100%);
    
    /* 文字色系 - 更精致 */
    --text-primary: #0a1628;
    --text-secondary: #1e293b;
    --text-body: #475569;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    
    /* 阴影系统 - 多层级 */
    --shadow-xs: 0 1px 3px rgba(15, 123, 74, 0.05);
    --shadow-sm: 0 4px 12px rgba(15, 123, 74, 0.08);
    --shadow-md: 0 8px 24px rgba(15, 123, 74, 0.12);
    --shadow-lg: 0 16px 48px rgba(15, 123, 74, 0.16);
    --shadow-xl: 0 24px 64px rgba(15, 123, 74, 0.2);
    --shadow-2xl: 0 32px 96px rgba(15, 123, 74, 0.28);
    --shadow-glow: 0 0 60px rgba(15, 123, 74, 0.35);
    --shadow-inner: inset 0 2px 8px rgba(15, 123, 74, 0.06);
    
    /* 间距系统 */
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 40px;
    --space-xl: 64px;
    --space-2xl: 96px;
    --space-3xl: 140px;
    
    /* 圆角系统 */
    --radius-xs: 6px;
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-xl: 40px;
    --radius-2xl: 56px;
    
    /* 过渡系统 */
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --transition-fast: 0.25s var(--ease-smooth);
    --transition-base: 0.4s var(--ease-smooth);
    --transition-slow: 0.6s var(--ease-smooth);
    --transition-spring: 0.5s var(--ease-bounce);
    
    /* 布局 */
    --max-width: 1320px;
    --container-padding: 40px;
}

html {
    scroll-behavior: smooth;
    font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-body);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

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

h1, h2, h3, h4, h5, h6 {
    max-width: 100%;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

p, span, a, li {
    max-width: 100%;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

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

ul {
    list-style: none;
}

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

/* ========== 区块 ========== */
.section {
    padding: var(--space-3xl) 0;
    position: relative;
}

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

.section-header {
    text-align: center;
    margin-bottom: 100px;
    position: relative;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 32px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 28px;
    box-shadow: var(--shadow-md), var(--shadow-glow);
    position: relative;
    overflow: hidden;
}

.section-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.section-tag:hover::before {
    left: 100%;
}

.section-header h2 {
    font-size: 48px;
    color: var(--text-primary);
    margin-bottom: 28px;
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.section-header p {
    font-size: 21px;
    color: var(--text-muted);
    max-width: 760px;
    margin: 0 auto;
    line-height: 1.7;
    font-weight: 400;
}

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 20px 48px;
    border-radius: var(--radius-md);
    font-size: 17px;
    font-weight: 700;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-md);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.7s, height 0.7s;
}

.btn:hover::before {
    width: 500px;
    height: 500px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    box-shadow: var(--shadow-lg), 0 10px 40px rgba(15, 123, 74, 0.45);
}

.btn-primary:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: var(--shadow-xl), 0 20px 60px rgba(15, 123, 74, 0.55);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 3px solid var(--primary);
    box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-6px) scale(1.03);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    backdrop-filter: blur(20px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(24px);
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.25);
}

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(24px) saturate(180%);
    z-index: 1000;
    padding: 24px 0;
    transition: all var(--transition-base);
    border-bottom: 1px solid rgba(15, 123, 74, 0.08);
}

.navbar.scrolled {
    padding: 16px 0;
    box-shadow: var(--shadow-lg);
    border-bottom-color: transparent;
}

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

.navbar-logo {
    font-size: 32px;
    font-weight: 900;
    color: var(--primary);
    letter-spacing: -0.03em;
    transition: all var(--transition-base);
}

.navbar-logo:hover {
    transform: scale(1.05);
}

.navbar-logo span {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-menu {
    display: flex;
    gap: 56px;
}

.navbar-menu a {
    font-size: 17px;
    color: var(--text-body);
    position: relative;
    padding: 12px 0;
    font-weight: 600;
    transition: color var(--transition-base);
}

.navbar-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: translateX(-50%);
    transition: width var(--transition-base);
    border-radius: 2px;
    box-shadow: 0 2px 8px rgba(15, 123, 74, 0.4);
}

.navbar-menu a:hover,
.navbar-menu a.active {
    color: var(--primary);
}

.navbar-menu a:hover::after,
.navbar-menu a.active::after {
    width: 100%;
}

.navbar-cta {
    display: flex;
    align-items: center;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 8px;
    cursor: pointer;
    padding: 12px;
    transition: all var(--transition-base);
}

.mobile-menu-btn:hover {
    transform: scale(1.1);
}

.mobile-menu-btn span {
    width: 30px;
    height: 3px;
    background: var(--text-primary);
    transition: all var(--transition-base);
    border-radius: 3px;
}

/* ========== Hero 区域 ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 180px var(--container-padding) 140px;
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 22, 40, 0.8), rgba(15, 123, 74, 0.6));
    backdrop-filter: blur(6px);
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(15, 123, 74, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-50px, 50px) scale(1.1); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #fff;
    max-width: 1000px;
    animation: fadeInUp 1.2s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(60px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    padding: 16px 36px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(24px);
    border-radius: 50px;
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 40px;
    border: 2px solid rgba(255, 255, 255, 0.25);
    letter-spacing: 0.8px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.hero h1 {
    font-size: 72px;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 40px;
    letter-spacing: -0.03em;
    text-shadow: 0 6px 50px rgba(0, 0, 0, 0.35);
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.hero h1 span {
    background: linear-gradient(135deg, #fff 0%, #a8e6cf 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.7;
    margin-bottom: 64px;
    opacity: 0.95;
    font-weight: 500;
    max-width: 880px;
    margin-left: auto;
    margin-right: auto;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.hero-buttons {
    display: flex;
    gap: 28px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========== 页面头部 ========== */
.page-header {
    padding: 200px 0 100px;
    background: var(--bg-gradient);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(15, 123, 74, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 25s ease-in-out infinite;
}

.page-header h1 {
    font-size: 52px;
    color: var(--text-primary);
    margin-bottom: 28px;
    font-weight: 900;
    letter-spacing: -0.03em;
    position: relative;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.page-header p {
    font-size: 20px;
    color: var(--text-muted);
    margin-bottom: 36px;
    position: relative;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    font-size: 16px;
    color: var(--text-muted);
    position: relative;
}

.breadcrumb a {
    color: var(--primary);
    font-weight: 700;
    transition: all var(--transition-base);
}

.breadcrumb a:hover {
    text-decoration: underline;
    transform: translateX(4px);
}

.breadcrumb .current {
    color: var(--text-primary);
    font-weight: 800;
}

/* ========== 特性卡片 ========== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.feature-card {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 56px 44px;
    text-align: center;
    transition: all var(--transition-base);
    border: 2px solid rgba(15, 123, 74, 0.06);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.feature-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 123, 74, 0.02), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-24px) scale(1.03);
    box-shadow: var(--shadow-2xl), var(--shadow-glow);
    border-color: var(--primary);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover::after {
    opacity: 1;
}

.feature-icon {
    width: 130px;
    height: 130px;
    margin: 0 auto 32px;
    background: linear-gradient(135deg, var(--bg-tertiary), #d4edda);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    transition: all var(--transition-spring);
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.feature-card:hover .feature-icon {
    transform: scale(1.2) rotate(8deg);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.feature-card h4 {
    font-size: 22px;
    color: var(--text-primary);
    margin-bottom: 18px;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.3;
    overflow-wrap: break-word;
    word-wrap: break-word;
    position: relative;
    z-index: 1;
}

.feature-card p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* ========== 产品卡片 ========== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

.product-card {
    background: #fff;
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    border: 2px solid rgba(15, 123, 74, 0.06);
    position: relative;
    box-shadow: var(--shadow-md);
}

.product-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    padding: 3px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.product-card:hover {
    transform: translateY(-28px) scale(1.03);
    box-shadow: var(--shadow-2xl), var(--shadow-glow);
}

.product-card:hover::before {
    opacity: 1;
}

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

.product-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(15, 123, 74, 0.1));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.product-card:hover .product-image::after {
    opacity: 1;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.18);
}

.product-info {
    padding: 40px;
}

.product-category {
    display: inline-block;
    padding: 10px 22px;
    background: linear-gradient(135deg, var(--bg-tertiary), #d4edda);
    color: var(--primary);
    border-radius: 24px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 18px;
    letter-spacing: 0.6px;
}

.product-info h3 {
    font-size: 26px;
    color: var(--text-primary);
    margin-bottom: 14px;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.3;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.product-info p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 24px;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    color: var(--primary);
    font-size: 16px;
    font-weight: 700;
    transition: all var(--transition-base);
}

.product-link i {
    transition: transform var(--transition-base);
}

.product-card:hover .product-link {
    color: var(--primary-dark);
}

.product-card:hover .product-link i {
    transform: translateX(12px);
}

/* ========== 新闻卡片 ========== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

.news-card {
    background: #fff;
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    border: 2px solid rgba(15, 123, 74, 0.06);
    box-shadow: var(--shadow-md);
}

.news-card:hover {
    transform: translateY(-28px) scale(1.03);
    box-shadow: var(--shadow-2xl), var(--shadow-glow);
}

.news-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--bg-tertiary);
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.news-card:hover .news-image img {
    transform: scale(1.15);
}

.news-info {
    padding: 40px;
}

.news-date {
    font-size: 15px;
    color: var(--text-muted);
    margin-bottom: 18px;
    font-weight: 600;
}

.news-info h4 {
    font-size: 22px;
    color: var(--text-primary);
    margin-bottom: 18px;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: -0.02em;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.news-info p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 24px;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    color: var(--primary);
    font-size: 16px;
    font-weight: 700;
}

/* ========== 关于我们 ========== */
.about-section {
    padding: 140px 0;
}

.about-content-full {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
}

.about-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    position: relative;
}

.about-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(15, 123, 74, 0.15));
    z-index: 1;
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    position: relative;
    z-index: 0;
}

.about-content h2 {
    font-size: 44px;
    color: var(--text-primary);
    margin-bottom: 36px;
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.03em;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.about-content p {
    font-size: 19px;
    color: var(--text-body);
    line-height: 1.9;
    margin-bottom: 24px;
}

.about-preview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 36px;
    margin-top: 56px;
}

.stat-item {
    text-align: center;
    padding: 44px 28px;
    background: linear-gradient(135deg, var(--bg-tertiary), #d4edda);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.stat-item:hover {
    transform: translateY(-12px) scale(1.06);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.stat-item:hover::before {
    transform: scaleX(1);
}

.stat-number {
    font-size: 48px;
    font-weight: 900;
    color: var(--primary);
    margin-bottom: 14px;
    letter-spacing: -0.02em;
    line-height: 1.2;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.stat-label {
    font-size: 16px;
    color: var(--text-muted);
    font-weight: 600;
}

/* ========== 时间线 ========== */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 80px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 5px;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    transform: translateX(-50%);
    box-shadow: 0 0 30px rgba(15, 123, 74, 0.35);
}

.timeline-item {
    position: relative;
    margin-bottom: 80px;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    justify-content: flex-start;
    padding-right: calc(50% + 56px);
}

.timeline-item:nth-child(even) {
    justify-content: flex-end;
    padding-left: calc(50% + 56px);
}

.timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 28px;
    background: var(--primary);
    border-radius: 50%;
    border: 5px solid #fff;
    box-shadow: 0 0 0 8px var(--primary-glow), var(--shadow-lg), var(--shadow-glow);
}

.timeline-content {
    background: #fff;
    padding: 44px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    transition: all var(--transition-base);
    border: 2px solid rgba(15, 123, 74, 0.06);
}

.timeline-content:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    border-color: var(--primary);
}

.timeline-year {
    display: inline-block;
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    border-radius: 24px;
    font-size: 15px;
    font-weight: 800;
    margin-bottom: 18px;
    letter-spacing: 0.6px;
    box-shadow: var(--shadow-md);
}

.timeline-content h4 {
    font-size: 24px;
    color: var(--text-primary);
    margin-bottom: 14px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.timeline-content p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ========== 价值观 ========== */
.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.value-card {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 56px 44px;
    text-align: center;
    transition: all var(--transition-base);
    border: 2px solid rgba(15, 123, 74, 0.06);
    position: relative;
    box-shadow: var(--shadow-md);
}

.value-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.value-card:hover {
    transform: translateY(-24px) scale(1.03);
    box-shadow: var(--shadow-2xl), var(--shadow-glow);
    border-color: var(--primary);
}

.value-card:hover::after {
    transform: scaleX(1);
}

.value-icon {
    font-size: 72px;
    margin-bottom: 32px;
}

.value-card h4 {
    font-size: 24px;
    color: var(--text-primary);
    margin-bottom: 18px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.value-card p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ========== 产品详情 ========== */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: flex-start;
}

.product-gallery {
    position: sticky;
    top: 160px;
}

.product-main-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--bg-tertiary);
    margin-bottom: 28px;
    box-shadow: var(--shadow-xl);
}

.product-main-image img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.product-thumbnails {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

.product-thumbnail {
    width: 110px;
    height: 110px;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    border: 4px solid transparent;
    transition: all var(--transition-base);
}

.product-thumbnail.active {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

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

.product-detail-info h1 {
    font-size: 44px;
    color: var(--text-primary);
    margin-bottom: 28px;
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.2;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.product-detail-category {
    display: inline-block;
    padding: 12px 28px;
    background: linear-gradient(135deg, var(--bg-tertiary), #d4edda);
    color: var(--primary);
    border-radius: 32px;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 28px;
    letter-spacing: 0.6px;
}

.product-detail-desc {
    font-size: 19px;
    color: var(--text-body);
    line-height: 1.9;
    margin-bottom: 48px;
}

.product-specs {
    background: linear-gradient(135deg, var(--bg-tertiary), #d4edda);
    border-radius: var(--radius-lg);
    padding: 48px;
    margin-bottom: 48px;
    box-shadow: var(--shadow-md);
}

.product-specs h4 {
    font-size: 24px;
    color: var(--text-primary);
    margin-bottom: 28px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.spec-list {
    display: grid;
    gap: 18px;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    padding: 18px 0;
    border-bottom: 2px solid rgba(0, 0, 0, 0.06);
}

.spec-item:last-child {
    border-bottom: none;
}

.spec-label {
    font-size: 16px;
    color: var(--text-muted);
    font-weight: 600;
}

.spec-value {
    font-size: 16px;
    color: var(--text-primary);
    font-weight: 700;
}

/* ========== 新闻详情 ========== */
.article-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 100px var(--container-padding);
}

.article-header {
    text-align: center;
    margin-bottom: 64px;
}

.article-header h1 {
    font-size: 44px;
    color: var(--text-primary);
    margin-bottom: 28px;
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.03em;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 36px;
    font-size: 16px;
    color: var(--text-muted);
}

.article-cover {
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 64px;
    box-shadow: var(--shadow-xl);
}

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

.article-content {
    font-size: 19px;
    color: var(--text-body);
    line-height: 1.9;
}

.article-content p {
    margin-bottom: 32px;
}

.article-content h2 {
    font-size: 36px;
    color: var(--text-primary);
    margin: 64px 0 32px;
    font-weight: 800;
    letter-spacing: -0.03em;
}

/* ========== 联系我们 ========== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
}

.contact-form {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 64px;
    box-shadow: var(--shadow-xl);
    border: 2px solid rgba(15, 123, 74, 0.06);
}

.contact-form h3 {
    font-size: 32px;
    color: var(--text-primary);
    margin-bottom: 36px;
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.2;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.contact-info h3 {
    font-size: 32px;
    color: var(--text-primary);
    margin-bottom: 36px;
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.2;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 28px;
    margin-bottom: 36px;
}

.contact-icon {
    width: 68px;
    height: 68px;
    background: linear-gradient(135deg, var(--bg-tertiary), #d4edda);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 28px;
    flex-shrink: 0;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.contact-item:hover .contact-icon {
    transform: scale(1.15) rotate(8deg);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.contact-text h4 {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 10px;
    font-weight: 800;
}

.contact-text p {
    font-size: 17px;
    color: var(--text-muted);
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 24px;
    margin-top: 48px;
}

.social-link {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--bg-tertiary), #d4edda);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 26px;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    transform: translateY(-14px) scale(1.15);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

/* ========== 表单 ========== */
.form-group {
    margin-bottom: 32px;
}

.form-group label {
    display: block;
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 14px;
    font-weight: 700;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 20px 28px;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    font-size: 17px;
    transition: all var(--transition-base);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 8px var(--primary-glow), var(--shadow-md);
}

.form-group textarea {
    min-height: 180px;
    resize: vertical;
}

/* ========== 页脚 ========== */
.footer {
    background: linear-gradient(135deg, var(--text-primary), #1e293b);
    color: #fff;
    padding: 100px 0 50px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--primary), var(--secondary), transparent);
    box-shadow: 0 0 30px rgba(15, 123, 74, 0.6);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 64px;
    margin-bottom: 64px;
}

.footer-brand h3 {
    font-size: 34px;
    margin-bottom: 28px;
    font-weight: 900;
    letter-spacing: -0.03em;
}

.footer-brand p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
}

.footer-links h4 {
    font-size: 20px;
    margin-bottom: 32px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.footer-links a {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    transition: all var(--transition-base);
}

.footer-links a:hover {
    color: var(--primary-light);
    transform: translateX(10px);
}

.footer-bottom {
    padding-top: 48px;
    border-top: 2px solid rgba(255, 255, 255, 0.15);
    text-align: center;
}

.footer-bottom p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.9);
}

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

/* ========== 动画 ========== */
.fade-in {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.9s var(--ease-smooth), transform 0.9s var(--ease-smooth);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== 视频容器 ========== */
.video-container {
    max-width: 1100px;
    margin: 80px auto;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl), var(--shadow-glow);
    background: #000;
    position: relative;
    border: 4px solid rgba(15, 123, 74, 0.15);
}

.video-container::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    padding: 4px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 16 / 9;
}

/* ========== 合作伙伴 ========== */
.partners-section {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
    align-items: center;
    justify-items: center;
}

.partner-card {
    width: 100%;
    max-width: 220px;
    height: 120px;
    background: #fff;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 24px;
    transition: all var(--transition-base);
    border: 2px solid rgba(15, 123, 74, 0.06);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.partner-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 123, 74, 0.03), rgba(16, 185, 129, 0.03));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.partner-card:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    border-color: var(--primary);
}

.partner-card:hover::before {
    opacity: 1;
}

.partner-card img {
    width: auto;
    height: 56px;
    max-width: 100%;
    object-fit: contain;
    filter: contrast(1.12) saturate(1.08);
    opacity: 1;
    transition: transform var(--transition-base);
    position: relative;
    z-index: 1;
}

.partner-card:hover img {
    filter: contrast(1.18) saturate(1.15);
    transform: scale(1.06);
}

/* ========== 产品筛选标签 ========== */
.product-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 60px;
    padding: 0 20px;
}

.filter-btn {
    padding: 12px 28px;
    border: 2px solid rgba(15, 123, 74, 0.12);
    border-radius: 50px;
    background: #fff;
    color: var(--text-body);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    letter-spacing: 0.3px;
    box-shadow: var(--shadow-xs);
}

.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    border-color: transparent;
    box-shadow: var(--shadow-md), 0 6px 20px rgba(15, 123, 74, 0.3);
}

/* 产品卡片筛选动画 */
.product-card.filter-hide {
    display: none;
}

.product-card.filter-show {
    animation: filterFadeIn 0.4s var(--ease-smooth) forwards;
}

@keyframes filterFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 1:1 方形产品图片 */
.product-image-1x1 {
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: var(--bg-tertiary);
    position: relative;
}

.product-image-1x1::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(15, 123, 74, 0.08));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.product-card:hover .product-image-1x1::after {
    opacity: 1;
}

.product-image-1x1 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-image-1x1 img {
    transform: scale(1.12);
}

/* ========== 粘性导航栏增强 ========== */
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(28px) saturate(200%);
    -webkit-backdrop-filter: blur(28px) saturate(200%);
}

/* ========== 回到顶部按钮 ========== */
.scroll-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg), 0 8px 30px rgba(15, 123, 74, 0.35);
    z-index: 999;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    transform: translateY(-6px) scale(1.1);
    box-shadow: var(--shadow-xl), 0 12px 40px rgba(15, 123, 74, 0.45);
}

/* ========== 咨询弹窗 ========== */
.consult-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 22, 40, 0.6);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    padding: 20px;
}

.consult-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.consult-modal {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 48px;
    max-width: 520px;
    width: 100%;
    position: relative;
    transform: translateY(30px) scale(0.95);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-2xl);
}

.consult-modal-overlay.active .consult-modal {
    transform: translateY(0) scale(1);
}

.consult-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: 50%;
    font-size: 18px;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.consult-modal-close:hover {
    background: var(--primary);
    color: #fff;
    transform: rotate(90deg);
}

.consult-modal h3 {
    font-size: 28px;
    color: var(--text-primary);
    margin-bottom: 12px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.consult-modal p {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 32px;
    line-height: 1.6;
}

.consult-modal .consult-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.consult-modal .consult-info-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.consult-modal .consult-info-item:hover {
    background: #d4edda;
    transform: translateX(4px);
}

.consult-modal .consult-info-item i {
    font-size: 22px;
    color: var(--primary);
    width: 28px;
    text-align: center;
}

.consult-modal .consult-info-item span {
    font-size: 16px;
    color: var(--text-primary);
    font-weight: 600;
}

/* ========== 品质溯源图标增强 ========== */
.traceability-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.traceability-step {
    text-align: center;
    padding: 32px 20px;
    background: #fff;
    border-radius: var(--radius-lg);
    border: 2px solid rgba(15, 123, 74, 0.06);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

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

.traceability-step .step-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--bg-tertiary), #d4edda);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--primary);
}

.traceability-step h5 {
    font-size: 16px;
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 8px;
}

.traceability-step p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ========== 深色页脚增强 ========== */
.footer-dark {
    background: linear-gradient(135deg, #0a1628 0%, #1a2332 50%, #0f1a12 100%);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --space-3xl: 100px;
        --container-padding: 28px;
    }
    
    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 32px;
        box-shadow: var(--shadow-lg);
    }
    
    .navbar-menu.active {
        display: flex;
    }
    
    .navbar-cta {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero h1 {
        font-size: 56px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .section-header h2 {
        font-size: 40px;
    }
    
    .features-grid,
    .products-grid,
    .news-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content-full,
    .about-preview,
    .contact-grid,
    .product-detail {
        grid-template-columns: 1fr;
        gap: 64px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 32px;
    }
    
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        padding-left: 72px;
        padding-right: 0;
        justify-content: flex-start;
    }
    
    .timeline-dot {
        left: 32px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .page-header h1 {
        font-size: 44px;
    }
    
    .product-gallery {
        position: static;
    }
    
    /* 移动端筛选标签 */
    .product-filter {
        gap: 8px;
        margin-bottom: 40px;
    }
    
    .filter-btn {
        padding: 10px 18px;
        font-size: 13px;
    }
    
    /* 移动端回到顶部 */
    .scroll-to-top {
        bottom: 24px;
        right: 24px;
        width: 44px;
        height: 44px;
        font-size: 18px;
    }
    
    /* 移动端溯源步骤 */
    .traceability-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    /* 移动端咨询弹窗 */
    .consult-modal {
        padding: 32px 24px;
    }
    
    .consult-modal h3 {
        font-size: 22px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 40px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 320px;
    }
}