:root {
    --primary: #2d5a27;
    --primary-light: #4a7c42;
    --primary-dark: #1a3a15;
    --secondary: #8b7355;
    --accent: #c17f59;
    --light: #f7f4f0;
    --white: #ffffff;
    --dark: #2c2c2c;
    --gray: #6c757d;
    --border: #e0d8cc;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-sm: 8px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;color:var(--dark);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color 0.3s}
a:hover{color:var(--primary-dark)}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

h1,h2,h3{color:var(--primary-dark);line-height:1.3;font-weight:700}
h1{font-size:2.5rem;margin-bottom:20px}
h2{font-size:2rem;margin-bottom:15px}
h3{font-size:1.5rem;margin-bottom:10px}
p{margin-bottom:15px}

.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.skip-link{position:absolute;top:-40px;left:0;background:var(--primary);color:#fff;padding:8px 16px;z-index:9999;transition:top 0.3s}
.skip-link:focus{top:0}

.top-bar{background:var(--primary-dark);color:#fff;padding:8px 0;font-size:0.85rem}
.top-bar .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.top-link{color:#fff;text-decoration:none;margin-right:15px}

.site-header{background:#fff;box-shadow:0 1px 0 rgba(0,0,0,0.05);position:sticky;top:0;z-index:1000}
.site-header .container{display:flex;align-items:center;padding:14px 20px;position:relative;flex-wrap:nowrap;gap:16px}

.logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.logo-icon{font-size:2rem}
.logo-text{display:flex;flex-direction:column}
.logo-main{font-size:1.6rem;font-weight:700;color:var(--primary);line-height:1.2}
.logo-sub{font-size:0.7rem;color:var(--secondary);letter-spacing:3px;text-transform:uppercase}
.logo-img{height:50px;width:auto}

.main-nav{flex:1;display:flex;justify-content:center;align-items:center}
.nav-list{display:flex;list-style:none;gap:2px}
.nav-link{display:block;color:var(--dark);font-weight:500;padding:10px 16px;border-radius:22px;font-size:0.95rem;transition:all 0.3s}
.nav-link:hover,.nav-link.active{color:var(--primary);background:var(--light)}

.mobile-menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:10px;flex-shrink:0;flex-direction:column;align-items:center;justify-content:center;width:38px;height:38px}
.menu-bar{display:block;width:22px;height:2px;background:var(--dark);margin:4px 0;border-radius:2px;transition:all 0.3s}

.header-search{display:flex;align-items:center;flex-shrink:0;margin-left:0}
.search-form-inline{display:flex;align-items:center;background:#ffffff;border-radius:12px;border:1.5px solid #e8e3dc;overflow:hidden;transition:all 0.35s ease;box-shadow:0 2px 8px rgba(0,0,0,0.04)}
.search-form-inline:focus-within{border-color:#2d5a27;box-shadow:0 4px 16px rgba(45,90,39,0.12);background:#ffffff}
.search-input-inline{border:none;outline:none;padding:9px 0 9px 16px;font-size:0.88rem;background:transparent;width:155px;font-family:'阿里巴巴普惠体',-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;color:#2c2c2c;letter-spacing:0.3px}
.search-input-inline::placeholder{color:#b8b0a4;font-weight:300;letter-spacing:0.5px}
.search-btn-inline{border:none;background:transparent;padding:9px 16px 9px 6px;cursor:pointer;color:#9a8a7a;transition:all 0.3s ease;display:flex;align-items:center;justify-content:center;border-radius:0 12px 12px 0}
.search-btn-inline:hover{color:#2d5a27}
.search-btn-inline svg{transition:transform 0.3s ease}
.search-btn-inline:hover svg{transform:scale(1.08)}

.page-header{background:linear-gradient(160deg,#1a3a15,#2d5a27,#3a6b35);background-size:cover;background-position:center;padding:70px 0;text-align:center;margin-bottom:40px;position:relative}
.page-header::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.35);z-index:1}
.page-header .container{position:relative;z-index:2}
.page-header h1{color:#fff;font-size:2.5rem;text-shadow:0 2px 10px rgba(0,0,0,0.3)}
.page-subtitle{color:rgba(255,255,255,0.9);font-size:1.1rem;margin-top:8px}
.breadcrumb{margin-top:20px}
.breadcrumb ol{list-style:none;display:flex;justify-content:center;gap:8px;font-size:0.9rem;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,0.8)}
.breadcrumb li{color:rgba(255,255,255,0.6)}
.breadcrumb li:not(:last-child)::after{content:'/';margin-left:8px;color:rgba(255,255,255,0.4)}

.hero-section{background:linear-gradient(160deg,#f0f4ed99,#d0e0c899);background-size:cover;background-position:center;padding:80px 0;text-align:center;position:relative;border-radius:24px;margin:0 20px}
.hero-content{position:relative;z-index:2;max-width:700px;margin:0 auto;padding:0 20px}
.hero-tagline{display:inline-block;background:rgba(45,90,39,0.10);color:var(--primary);padding:8px 20px;border-radius:30px;font-size:0.9rem;margin-bottom:20px}
.hero-content h1{font-size:3rem;color:#1a2e14;margin-bottom:16px}
.hero-subtitle{font-size:1.1rem;color:#4a5b3f;margin-bottom:32px}
.hero-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

.btn{display:inline-block;padding:14px 30px;border-radius:50px;font-weight:600;text-decoration:none;border:2px solid transparent;cursor:pointer;font-size:0.95rem;transition:all 0.3s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px)}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-lg{padding:16px 36px;font-size:1rem}
.btn-sm{padding:6px 14px;font-size:0.85rem}
.btn-block{display:block;width:100%;text-align:center}

section{padding:60px 0}
.bg-light{background:var(--light)}
.section-header{text-align:center;margin-bottom:50px}
.section-header h2{font-size:2.2rem;margin-bottom:8px}
.section-header p{color:var(--secondary);font-size:1.05rem}
.text-center{text-align:center}
.mt-40{margin-top:40px}

.values-grid,.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px}
.value-card,.service-card{background:#fff;padding:30px;border-radius:var(--radius);text-align:center;box-shadow:var(--shadow);transition:transform 0.3s}
.value-card:hover,.service-card:hover{transform:translateY(-4px)}
.value-icon,.service-icon{font-size:2.5rem;margin-bottom:16px;display:block}
.service-link{display:inline-block;margin-top:12px;color:var(--primary);font-weight:600}

.team-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.team-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);text-align:center;padding-bottom:20px}
.team-image{height:220px;background:var(--light);display:flex;align-items:center;justify-content:center;overflow:hidden}
.team-image img{width:100%;height:100%;object-fit:cover}
.placeholder-avatar{font-size:4rem}
.team-card h3{margin-top:16px}
.team-position{color:var(--primary);font-weight:600;font-size:0.9rem}

.project-grid,.blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.project-card,.blog-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform 0.3s}
.project-card:hover,.blog-card:hover{transform:translateY(-4px)}
.project-image,.blog-image{height:240px;overflow:hidden}
.project-image img,.blog-image img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s}
.project-card:hover .project-image img,.blog-card:hover .blog-image img{transform:scale(1.05)}
.project-info,.blog-content{padding:20px}
.blog-content h2{font-size:1.2rem}
.blog-content h2 a{color:var(--dark)}
.blog-meta{color:var(--gray);font-size:0.85rem;margin-bottom:8px}

.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px;margin:40px 0}
.product-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform 0.3s}
.product-card:hover{transform:translateY(-4px)}
.product-image{position:relative;height:240px;background:var(--light);overflow:hidden}
.product-image img{width:100%;height:100%;object-fit:cover}
.product-info{padding:18px}
.product-category{color:var(--secondary);font-size:0.8rem;text-transform:uppercase}
.placeholder-image{display:flex;align-items:center;justify-content:center;height:100%;font-size:3rem;background:var(--light)}

.category-filter{display:flex;gap:8px;flex-wrap:wrap;margin:30px 0;justify-content:center}
.filter-btn{padding:8px 18px;border:2px solid var(--border);border-radius:25px;color:var(--dark);font-weight:500;font-size:0.9rem;transition:all 0.3s;text-decoration:none}
.filter-btn:hover,.filter-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}

.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin:40px 0}
.main-image{border-radius:var(--radius);overflow:hidden;background:var(--light)}
.main-image img{width:100%;height:380px;object-fit:cover}
.placeholder-image.large{height:380px;font-size:5rem}
.product-description{font-size:1.05rem;line-height:1.8;margin:20px 0}
.product-actions{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}
.care-guide{background:#f0f7ed;padding:20px;border-radius:var(--radius);border-left:4px solid var(--primary);margin-top:20px}

.cta-section{background:linear-gradient(135deg,#1a3a15,#2d5a27);color:#fff;text-align:center;border-radius:20px;margin:40px 20px;padding:70px 30px}
.cta-section h2{color:#fff;font-size:2.2rem;margin-bottom:12px}
.cta-section p{color:rgba(255,255,255,0.85);font-size:1.05rem;margin-bottom:30px}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-cta-primary{background:#fff;color:#1a3a15;padding:14px 32px;border-radius:50px;font-weight:700;border:2px solid #fff;box-shadow:0 4px 15px rgba(0,0,0,0.2);text-decoration:none;display:inline-block;transition:all 0.3s}
.btn-cta-primary:hover{background:#f0f4ed;transform:translateY(-2px)}
.btn-cta-outline{background:rgba(255,255,255,0.1);color:#fff;padding:14px 32px;border-radius:50px;font-weight:600;border:2px solid rgba(255,255,255,0.5);text-decoration:none;display:inline-block;transition:all 0.3s}
.btn-cta-outline:hover{background:rgba(255,255,255,0.2);border-color:#fff;transform:translateY(-2px)}

.newsletter-section{background:var(--light);padding:50px 0}
.newsletter-content{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.newsletter-input-group{display:flex;gap:10px;flex-wrap:wrap}
.newsletter-input-group input{flex:1;padding:12px 18px;border:2px solid var(--border);border-radius:30px;min-width:220px;font-size:0.95rem;outline:none}
.newsletter-input-group input:focus{border-color:var(--primary)}

.contact-info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:40px}
.contact-info-card{background:#fff;padding:24px 16px;border-radius:var(--radius);text-align:center;box-shadow:var(--shadow)}
.contact-info-icon{font-size:2rem;margin-bottom:10px;display:block}
.contact-info-card h3{font-size:1rem;color:var(--primary);margin-bottom:6px}
.contact-info-card p{font-size:0.85rem;color:var(--gray);margin:0}
.contact-main-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:30px}
.contact-form{background:#fff;padding:30px;border-radius:var(--radius);box-shadow:var(--shadow)}
.contact-map{height:260px;border-radius:var(--radius);overflow:hidden;background:var(--light)}

.form-group{margin-bottom:16px}
.form-group label{display:block;margin-bottom:6px;font-weight:600;font-size:0.9rem}
.form-control{width:100%;padding:12px 14px;border:2px solid var(--border);border-radius:10px;font-size:0.95rem;font-family:inherit;background:#faf8f5;transition:border-color 0.3s;outline:none}
.form-control:focus{outline:none;border-color:var(--primary);background:#fff}
textarea.form-control{resize:vertical;min-height:100px}

.site-footer{background:var(--primary-dark);color:#fff;padding:60px 0 30px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-col h3{color:#c8d5b9;margin-bottom:16px;font-size:1.1rem}
.footer-col p,.footer-col li{color:#bccfaa;margin-bottom:8px;font-size:0.9rem}
.footer-col ul{list-style:none}
.footer-col a{color:#bccfaa}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:#8b9e7a;font-size:0.85rem}
.footer-links{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.footer-divider{color:rgba(255,255,255,0.2)}

/* ============================================================
   RESPONSIVE - 移动端（仅修改移动端，不影响电脑端）
   ============================================================ */
@media (max-width: 768px) {
    /* ----- Header 布局：汉堡 | Logo（居中）| 搜索 ----- */
    .site-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 10px 14px;
        flex-wrap: nowrap;
        gap: 0;
        position: relative;
    }

    /* 汉堡菜单 - 左侧固定 */
    .mobile-menu-toggle {
        display: flex !important;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        padding: 6px;
        flex-shrink: 0;
        background: none;
        border: none;
        cursor: pointer;
    }
    .menu-bar {
        display: block;
        width: 22px;
        height: 2px;
        background: var(--dark);
        margin: 3.5px 0;
        border-radius: 2px;
        transition: all 0.3s;
    }

    /* Logo - 绝对居中 */
    .logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        flex-shrink: 0;
        margin: 0;
        order: 0;
    }
    .logo-icon {
        font-size: 1.4rem;
    }
    .logo-main {
        font-size: 1.2rem;
    }
    .logo-sub {
        font-size: 0.6rem;
    }
    .logo-img {
        height: 34px;
    }
    /* 小屏隐藏 Logo 文字避免太挤 */
    .logo-text {
        display: none;
    }

    /* 搜索框 - 右侧固定 */
    .header-search {
        flex-shrink: 0;
        margin-left: 0;
    }
    .search-form-inline {
        border-radius: 8px;
        border-width: 1.5px;
    }
    .search-input-inline {
        width: 80px;
        padding: 6px 0 6px 10px;
        font-size: 0.75rem;
    }
    .search-input-inline::placeholder {
        font-size: 0.7rem;
    }
    .search-btn-inline {
        padding: 6px 10px 6px 2px;
    }
    .search-btn-inline svg {
        width: 15px;
        height: 15px;
    }

    /* 导航菜单下拉 */
    .main-nav {
        flex: 0 0 auto;
    }
    .nav-list {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 8px 16px;
        box-shadow: 0 8px 25px rgba(0,0,0,0.1);
        z-index: 1000;
        border-radius: 0 0 14px 14px;
        margin: 0;
        width: 100%;
    }
    .nav-list.active {
        display: flex;
    }
    .nav-link {
        padding: 14px 12px;
        border-bottom: 1px solid #f0f0f0;
        font-size: 1rem;
        border-radius: 0;
    }
    .nav-link:hover,
    .nav-link.active {
        background: transparent;
        color: var(--primary);
    }

    /* ----- 产品详情页：上下结构 ----- */
    .product-detail {
        grid-template-columns: 1fr;
        gap: 24px;
        margin: 20px 0;
    }

    .main-image {
        border-radius: 12px;
        overflow: hidden;
    }

    .main-image img {
        width: 100%;
        height: auto;
        max-height: 300px;
        object-fit: cover;
    }

    .product-details h1 {
        font-size: 1.4rem;
        margin-top: 0;
    }

    .product-details .product-description {
        font-size: 0.95rem;
        line-height: 1.7;
    }

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

    .product-actions .btn {
        width: 100%;
        text-align: center;
    }

    .placeholder-image.large {
        height: 250px;
        font-size: 3.5rem;
    }

    /* ----- Footer 链接居中对齐 ----- */
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
    }

    /* ----- 其他移动端已有样式保持不变 ----- */
    h1{font-size:1.8rem}
    h2{font-size:1.5rem}
    h3{font-size:1.2rem}
    section{padding:40px 0}
    .hero-section{padding:50px 0;margin:0 10px;border-radius:16px}
    .hero-content h1{font-size:2rem}
    .hero-buttons{flex-direction:column;align-items:center}
    .hero-buttons .btn{width:100%;max-width:240px;text-align:center}
    .page-header{padding:40px 0}
    .page-header h1{font-size:1.8rem}
    .values-grid,.services-grid{grid-template-columns:1fr}
    .team-grid,.project-grid,.blog-grid,.product-grid{grid-template-columns:1fr}
    .contact-info-grid{grid-template-columns:1fr 1fr}
    .contact-main-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr;gap:24px}
    .cta-section{margin:30px 12px;padding:40px 20px;border-radius:16px}
    .cta-section h2{font-size:1.6rem}
    .cta-buttons{flex-direction:column;align-items:center}
    .newsletter-content{flex-direction:column;text-align:center}
    .newsletter-input-group{flex-direction:column;width:100%}
    .newsletter-input-group input{min-width:auto;width:100%}
    .category-filter{overflow-x:auto;flex-wrap:nowrap;justify-content:flex-start;padding-bottom:8px}
    .filter-btn{white-space:nowrap;flex-shrink:0}
    .breadcrumb ol{flex-wrap:wrap}
}

/* ----- 小屏手机（480px 及以下）进一步优化 ----- */
@media (max-width: 480px) {
    .mobile-menu-toggle {
        width: 32px;
        height: 32px;
        padding: 4px;
    }
    .menu-bar {
        width: 18px;
        height: 2px;
        margin: 2.5px 0;
    }
    .logo {
        margin: 0;
    }
    .logo-icon {
        font-size: 1.2rem;
    }
    .logo-img {
        height: 28px;
    }
    .search-input-inline {
        width: 60px;
        padding: 5px 0 5px 8px;
        font-size: 0.68rem;
    }
    .search-input-inline::placeholder {
        font-size: 0.6rem;
    }
    .search-btn-inline {
        padding: 5px 8px 5px 2px;
    }
    .search-btn-inline svg {
        width: 13px;
        height: 13px;
    }
}