/* ================= 基础变量与重置 ================= */
        :root {
            --bg-light: #F9F7F3;
            --bg-alt: #F0EBE1;
            --text-main: #2C2A29;
            --text-light: #7A736E;
            --accent: #C49A6C;
            --white: #FFFFFF;
            --font-main: 'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --font-serif: 'Georgia', 'Times New Roman', serif;
        }

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

        body {
            font-family: var(--font-main);
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.8;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
        ul { list-style: none; }
        img { max-width: 100%; display: block; }

        .section-padding { padding: 120px 5%; }
        .container { max-width: 1400px; margin: 0 auto; }
        
        .section-header { text-align: center; margin-bottom: 80px; }
        .subtitle { font-size: 13px; color: var(--accent); letter-spacing: 4px; text-transform: uppercase; font-weight: 600; margin-bottom: 15px; display: block; }
        .title { font-size: 42px; font-weight: 300; color: var(--text-main); letter-spacing: 2px; }

        .btn { display: inline-block; padding: 16px 45px; background: transparent; border: 1px solid var(--text-main); color: var(--text-main); font-size: 14px; letter-spacing: 2px; text-transform: uppercase; cursor: pointer; transition: 0.3s; }
        .btn:hover { background: var(--text-main); color: var(--bg-light); }
        .btn-fill { background: var(--accent); border-color: var(--accent); color: var(--white); }
        .btn-fill:hover { background: #b0885c; }

        /* ================= 导航栏 ================= */
        header { position: absolute; top: 0; width: 100%; padding: 30px 5%; display: flex; justify-content: space-between; align-items: center; z-index: 100; }
        .logo { font-size: 28px; font-weight: 500; letter-spacing: 3px; color: var(--white); }
        .logo span { font-size: 12px; display: block; letter-spacing: 6px; font-weight: 300; margin-top: 4px; }
        nav ul { display: flex; gap: 40px; }
        nav a { font-size: 15px; font-weight: 400; color: var(--white); position: relative; }
        nav a::after { content: ''; position: absolute; width: 0; height: 1px; bottom: -5px; left: 0; background-color: var(--white); transition: width 0.3s; }
        nav a:hover::after { width: 100%; }
        .lang-switch { color: var(--white); font-size: 14px; letter-spacing: 1px; display: flex; align-items: center; gap: 8px; }
        .lang-switch button { background: none; border: none; color: var(--white); cursor: pointer; font-size: 14px; letter-spacing: 1px; font-family: var(--font-main); transition: color 0.3s ease; }
        .lang-switch button:hover, .lang-switch button.active { color: var(--accent); }

        /* ================= 首屏 轮播 Banner ================= */
        .hero-slider { position: relative; height: 100vh; overflow: hidden; background-color: #1a1a1a; }
        
        .slide { 
            position: absolute; top: 0; left: 0; width: 100%; height: 100%; 
            background-size: cover; background-position: center; 
            opacity: 0; transition: opacity 1.5s ease-in-out; z-index: 0;
            display: flex; align-items: center; justify-content: center; text-align: center;
        }
        .slide.active { opacity: 1; z-index: 1; }
        
        .hero-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.4); z-index: 1; }
        
        .hero-content { 
            position: relative; z-index: 2; color: var(--white); max-width: 900px; padding: 0 20px;
            opacity: 0; transform: translateY(40px);
            transition: all 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            transition-delay: 0.4s; 
        }
        .slide.active .hero-content { opacity: 1; transform: translateY(0); }

        .hero-title { font-size: 68px; font-weight: 300; line-height: 1.2; margin-bottom: 25px; letter-spacing: 6px; text-shadow: 0 4px 20px rgba(0,0,0,0.3); color: var(--white); }
        .hero-desc { font-size: 20px; font-weight: 300; letter-spacing: 2px; margin-bottom: 45px; opacity: 0.9; color: var(--white); }
        
        .hero-content .btn { border-color: var(--white); color: var(--white); }
        .hero-content .btn:hover { background: var(--white); color: var(--text-main); }

        .slider-dots { position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%); z-index: 3; display: flex; gap: 15px; }
        .dot { width: 40px; height: 2px; background: rgba(255,255,255,0.4); cursor: pointer; transition: 0.3s; }
        .dot.active { background: var(--white); }

        /* ================= 核心产品展示 (动态选项卡) ================= */
        .product-section { background-color: var(--bg-alt); }
        
        .product-filters { display: flex; justify-content: center; flex-wrap: wrap; gap: 15px 30px; margin-bottom: 50px; }
        .filter-btn { background: none; border: none; font-size: 15px; color: var(--text-light); cursor: pointer; padding-bottom: 5px; position: relative; transition: color 0.3s ease; font-family: var(--font-main); letter-spacing: 1px; }
        .filter-btn .count { font-size: 12px; opacity: 0.6; font-family: var(--font-serif); }
        .filter-btn::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 0; height: 2px; background-color: var(--accent); transition: width 0.3s ease; }
        .filter-btn:hover { color: var(--text-main); }
        .filter-btn.active { color: var(--text-main); font-weight: 500; }
        .filter-btn.active::after { width: 100%; }

        .product-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
        .product-item { background: var(--white); overflow: hidden; transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94); transform: scale(1); opacity: 1; }
        .product-item.hide { display: none; }
        .p-img-box { height: 400px; overflow: hidden; position: relative; }
        .p-img-box img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s ease; }
        .product-item:hover .p-img-box img { transform: scale(1.08); }
        .p-info { padding: 30px; text-align: center; }
        .p-info h3 { font-size: 22px; font-weight: 400; margin-bottom: 10px; color: var(--text-main); }
        .p-info p { font-size: 14px; color: var(--text-light); margin-bottom: 20px; line-height: 1.6; }
        .p-link { font-size: 13px; color: var(--accent); text-transform: uppercase; font-weight: 600; letter-spacing: 1px; transition: 0.3s; }
        .p-link:hover { color: var(--text-main); }

        /* ================= 品牌未来规划 (数据面板) ================= */
        .vision-section { position: relative; padding: 120px 5% 60px; background: url('../images/factory-render.jpg') center/cover fixed; background-color: #1a1a1a; color: var(--white); overflow: hidden; }
        .vision-section::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(90deg, rgba(15, 17, 21, 0.95) 0%, rgba(15, 17, 21, 0.8) 40%, rgba(15, 17, 21, 0.2) 100%); z-index: 1; }
        .vision-container { position: relative; z-index: 2; max-width: 1400px; margin: 0 auto; display: flex; flex-direction: column; gap: 60px; }
        .vision-header { display: flex; justify-content: space-between; align-items: flex-start; border-bottom: 1px solid rgba(255, 255, 255, 0.15); padding-bottom: 30px; }
        .vh-left h2 { font-size: 56px; font-weight: 600; letter-spacing: 2px; margin-bottom: 5px; font-family: 'Helvetica Neue', Arial, sans-serif; text-transform: uppercase; }
        .vh-left p { font-size: 16px; color: var(--accent); letter-spacing: 4px; }
        .vh-right { text-align: right; padding-top: 15px; }
        .vh-right .en { font-size: 14px; letter-spacing: 3px; margin-bottom: 5px; color: rgba(255, 255, 255, 0.8); }
        .vh-right .cn { font-size: 13px; letter-spacing: 6px; color: rgba(255, 255, 255, 0.5); }
        .vision-concepts { display: flex; flex-direction: column; gap: 30px; max-width: 500px; }
        .vc-item { display: flex; align-items: flex-start; gap: 20px; transition: transform 0.3s ease; cursor: default; }
        .vc-item:hover { transform: translateX(10px); }
        .vc-icon { width: 48px; height: 48px; flex-shrink: 0; border: 1px solid rgba(196, 154, 108, 0.5); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--accent); }
        .vc-icon svg { width: 24px; height: 24px; fill: currentColor; }
        .vc-text h4 { font-size: 18px; font-weight: 500; margin-bottom: 4px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
        .vc-text h4 span { font-size: 11px; font-weight: 300; color: var(--accent); letter-spacing: 1px; border: 1px solid rgba(196, 154, 108, 0.3); padding: 2px 8px; border-radius: 20px; }
        .vc-text p { font-size: 13px; color: rgba(255, 255, 255, 0.6); letter-spacing: 1px; }
        .vision-stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; margin-top: 40px; padding: 40px; background: rgba(0, 0, 0, 0.3); backdrop-filter: blur(10px); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 4px; }
        .vs-item { display: flex; flex-direction: column; align-items: center; text-align: center; position: relative; }
        .vs-item:not(:last-child)::after { content: ''; position: absolute; right: -10px; top: 20%; height: 60%; width: 1px; background: rgba(255, 255, 255, 0.1); }
        .vs-icon { color: var(--accent); margin-bottom: 15px; }
        .vs-icon svg { width: 32px; height: 32px; fill: currentColor; }
        .vs-data { font-size: 36px; font-family: 'Helvetica Neue', Arial, sans-serif; font-weight: 500; line-height: 1; margin-bottom: 5px; }
        .vs-data span { font-size: 16px; font-weight: 300; margin-left: 2px; }
        .vs-label-en { font-size: 11px; color: rgba(255, 255, 255, 0.7); letter-spacing: 1px; margin-bottom: 2px; }
        .vs-label-cn { font-size: 13px; color: rgba(255, 255, 255, 0.5); letter-spacing: 2px; }

        /* ================= 全球工程案例 (画廊) ================= */
        .projects-section { background-color: var(--white); }
        .project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
        .project-card { position: relative; height: 450px; overflow: hidden; cursor: pointer; }
        .project-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
        
        .project-info {
            position: absolute;
            bottom: 0; left: 0; width: 100%;
            padding: 40px 30px;
            background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.5) 50%, transparent 100%);
            color: var(--white);
            transform: translateY(30px);
            opacity: 0.9;
            transition: all 0.4s ease;
        }

        .project-tag { display: inline-block; font-size: 12px; color: var(--accent); border: 1px solid var(--accent); padding: 3px 10px; margin-bottom: 12px; text-transform: uppercase; letter-spacing: 1px; border-radius: 20px; }
        .project-info h3 { font-size: 24px; font-weight: 400; margin-bottom: 8px; }
        .project-info p { font-size: 14px; color: rgba(255,255,255,0.7); opacity: 0; transition: opacity 0.4s 0.1s ease; }
        
        .project-card:hover img { transform: scale(1.08); }
        .project-card:hover .project-info { transform: translateY(0); opacity: 1; }
        .project-card:hover .project-info p { opacity: 1; }

        /* ================= 品牌工艺优势 ================= */
        .craft-section { background-color: var(--bg-light); border-top: 1px solid var(--bg-alt); }
        .craft-row { display: flex; align-items: center; gap: 80px; margin-bottom: 100px; }
        .craft-row:last-child { margin-bottom: 0; }
        .craft-row.reverse { flex-direction: row-reverse; }
        .craft-img { flex: 1; overflow: hidden; }
        .craft-img img { width: 100%; height: 500px; object-fit: cover; transition: transform 0.8s ease; }
        .craft-img:hover img { transform: scale(1.05); }
        .craft-text { flex: 1; padding: 0 40px; }
        .craft-num { font-family: var(--font-serif); font-size: 60px; color: var(--bg-alt); line-height: 1; margin-bottom: -20px; position: relative; z-index: 0; }
        .craft-text h3 { font-size: 32px; font-weight: 300; margin-bottom: 20px; position: relative; z-index: 1; }
        .craft-text p { color: var(--text-light); font-size: 15px; margin-bottom: 20px; }

        /* ================= 产品视频 ================= */
        .video-section { position: relative; height: 70vh; display: flex; align-items: center; justify-content: center; overflow: hidden; }
        .bg-video { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
        .video-section::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.4); z-index: 1; }
        .video-content { position: relative; z-index: 2; text-align: center; color: #ffffff; }
        .play-btn { width: 80px; height: 80px; border: 2px solid var(--white); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; cursor: pointer; transition: all 0.3s; }
        .play-btn::after { content: '▶'; font-size: 24px; margin-left: 5px; color: var(--white); }
        .play-btn:hover { background: var(--accent); border-color: var(--accent); transform: scale(1.1); }
        .video-content h2 { font-size: 36px; font-weight: 300; letter-spacing: 2px; color: var(--white);}

        /* ================= 升级版：全球化供应链服务 (暖色极简风) ================= */
        .b2b-service-section { background-color: var(--bg-light); border-top: 1px solid var(--bg-alt); }
        
        .b2b-service-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-top: 60px;
        }

        .b2b-service-item {
            border-top: 2px solid var(--text-main);
            padding-top: 20px;
            transition: transform 0.3s ease;
        }

        .b2b-service-item:hover {
            transform: translateY(-5px);
        }

        .b2b-service-item h3 {
            font-size: 20px;
            font-weight: 400;
            margin-bottom: 15px;
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            color: var(--text-main);
            line-height: 1.4;
        }

        .b2b-service-item h3 span { 
            color: var(--accent); 
            font-family: var(--font-serif); 
            font-style: italic; 
            font-size: 20px;
            margin-left: 10px;
        }

        .b2b-service-item p { 
            color: var(--text-light); 
            font-size: 14px; 
            line-height: 1.7; 
        }

        /* ================= 底部区域 ================= */
        footer { background: #1a1a1a; color: var(--bg-alt); padding: 80px 5% 30px; border-top: 1px solid rgba(255,255,255,0.05); }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 50px; margin-bottom: 60px; }
        .footer-logo { font-size: 24px; color: var(--white); letter-spacing: 3px; margin-bottom: 20px; }
        .footer-col h4 { color: var(--white); font-size: 16px; margin-bottom: 25px; font-weight: 400; letter-spacing: 1px; }
        .footer-col ul li { margin-bottom: 15px; }
        .footer-col ul li a { color: #a39e99; font-size: 14px; }
        .footer-col ul li a:hover { color: var(--accent); }
        .footer-bottom { text-align: center; padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.1); color: #7a736e; font-size: 12px; }

        /* ================= 响应式 ================= */
        @media (max-width: 1024px) {
            .hero-title { font-size: 50px; }
            .product-gallery, .project-grid { grid-template-columns: repeat(2, 1fr); }
            .vision-header { flex-direction: column; gap: 20px; }
            .vh-right { text-align: left; }
            .vision-stats { grid-template-columns: repeat(3, 1fr); gap: 30px; }
            .vs-item:nth-child(3)::after { display: none; }
            .craft-row { grid-template-columns: 1fr; gap: 40px; flex-direction: column !important; }
            .craft-text { padding: 0; }
            .b2b-service-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            nav ul, .lang-switch { display: none; }
            header { background: rgba(44, 42, 41, 0.9); padding: 20px 5%; }
            .hero-title { font-size: 40px; }
            .product-gallery, .project-grid { grid-template-columns: 1fr; }
            .product-filters { gap: 10px 15px; }
            .filter-btn { font-size: 13px; }
            .vision-section { padding: 80px 5%; }
            .vision-section::before { background: rgba(15, 17, 21, 0.85); }
            .vh-left h2 { font-size: 36px; }
            .vision-stats { grid-template-columns: 1fr; gap: 40px; padding: 30px 20px; }
            .vs-item::after { display: none !important; }
            .b2b-service-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .section-padding { padding: 80px 5%; }
        }

/* 商业官网重构增强 */
header.site-header { position:absolute; }
header.site-header.is-fixed { position:fixed; background:rgba(26,26,26,.86); backdrop-filter:blur(14px); box-shadow:0 10px 30px rgba(0,0,0,.12); padding-top:18px; padding-bottom:18px; }
.logo { display:flex; align-items:center; color:var(--white); }
.logo-mark { width:184px; height:auto; display:block; }
.logo-cn { font-size:12px; letter-spacing:7px; color:var(--white); margin-top:5px; text-align:center; opacity:.92; }
.lang-switch { display:flex; align-items:center; gap:8px; }
.lang-switch button { background:none; border:0; color:rgba(255,255,255,.72); cursor:pointer; font-size:14px; letter-spacing:1px; padding:4px 2px; }
.lang-switch button.active { color:var(--white); border-bottom:1px solid var(--accent); }
nav a.active::after { width:100%; }
.page-hero { min-height:62vh; display:flex; align-items:center; justify-content:center; text-align:center; color:var(--white); position:relative; background-size:cover; background-position:center; padding:160px 5% 100px; }
.page-hero::before { content:''; position:absolute; inset:0; background:rgba(0,0,0,.48); }
.page-hero-content { position:relative; z-index:1; max-width:900px; }
.page-hero h1 { font-size:58px; font-weight:300; letter-spacing:5px; margin-bottom:18px; color:var(--white); }
.page-hero p { font-size:18px; letter-spacing:2px; opacity:.88; color:var(--white); }
.breadcrumb { font-size:13px; letter-spacing:2px; color:var(--accent); text-transform:uppercase; margin-bottom:18px; display:block; }
.lead { color:var(--text-light); max-width:760px; margin:20px auto 0; font-size:16px; line-height:1.9; }
.value-grid,.cert-grid,.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.value-card,.cert-card,.contact-card{background:var(--white);padding:36px;border-top:2px solid var(--accent);min-height:190px;transition:.3s}
.value-card:hover,.cert-card:hover,.contact-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(0,0,0,.08)}
.value-card h3,.cert-card h3,.contact-card h3{font-size:22px;font-weight:400;margin-bottom:14px}
.value-card p,.cert-card p,.contact-card p{color:var(--text-light);font-size:14px;line-height:1.8}
.product-page-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.product-detail-card{background:var(--white);overflow:hidden}
.product-detail-card img{height:320px;width:100%;object-fit:cover}
.product-detail-card .content{padding:30px}
.product-detail-card h3{font-size:24px;font-weight:400;margin-bottom:10px}
.product-detail-card p{color:var(--text-light);font-size:14px;line-height:1.8;margin-bottom:18px}
.feature-list li{color:var(--text-light);font-size:14px;margin-bottom:8px;position:relative;padding-left:18px}
.feature-list li::before{content:'•';color:var(--accent);position:absolute;left:0}
.solution-band{background:#1a1a1a;color:var(--white)}
.solution-band .title,.solution-band h3{color:var(--white)}
.solution-band p{color:rgba(255,255,255,.68)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.process-card{background:rgba(255,255,255,.06);padding:30px;border:1px solid rgba(255,255,255,.1)}
.process-card::before{counter-increment:step;content:'0' counter(step);display:block;color:var(--accent);font-family:var(--font-serif);font-size:36px;margin-bottom:18px}
.contact-form{background:var(--white);padding:42px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-control{width:100%;padding:15px 16px;border:1px solid #ddd6cc;background:#fff;margin-bottom:18px;font-family:var(--font-main)}
textarea.form-control{min-height:140px;resize:vertical}
.notice{margin-top:16px;color:var(--accent);font-size:14px;display:none}.notice.show{display:block}
@media(max-width:1024px){.value-grid,.cert-grid,.contact-grid,.product-page-grid{grid-template-columns:repeat(2,1fr)}.process-grid{grid-template-columns:repeat(2,1fr)}.page-hero h1{font-size:44px}}
@media(max-width:768px){.logo-mark{width:145px}.logo-cn{font-size:10px;letter-spacing:5px}.value-grid,.cert-grid,.contact-grid,.product-page-grid,.process-grid,.form-row{grid-template-columns:1fr}.page-hero{min-height:52vh}.page-hero h1{font-size:34px}}


/* ===== 修复版：SVG 文字 Logo 与导航初始显示 ===== */
.brand-logo {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    color: var(--white);
    line-height: 1;
    min-width: 214px;
}
.brand-word {
    display: flex;
    align-items: center;
    gap: 7px;
    white-space: nowrap;
}
.brand-text {
    font-family: "Helvetica Neue", Arial, sans-serif;
    font-size: 22px;
    font-weight: 400;
    letter-spacing: 5px;
    color: var(--white);
}
.brand-m {
    width: 48px;
    height: 33px;
    display: block;
    flex: 0 0 auto;
    margin: 0 -2px 0 -4px;
}
.logo-cn {
    margin-top: 13px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 9px;
    color: var(--white);
    text-align: center;
    opacity: .96;
    padding-left: 8px;
}
.site-header nav ul { align-items: center; }
@media(max-width:768px){
    .brand-logo{min-width:170px; align-items:flex-start;}
    .brand-text{font-size:19px; letter-spacing:4px;}
    .brand-m{width:41px;height:29px;}
    .logo-cn{font-size:10px;letter-spacing:6px;padding-left:4px;margin-top:10px;}
}
.site-logo img {
  width: 220px;
  height: auto;
  display: block;
}

@media (max-width: 768px) {
  .site-logo img {
    width: 160px;
  }
}

/* ===== 统一图片 Logo + 手机导航 ===== */
.site-header {
  gap: 28px;
}
.site-logo {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  position: relative;
  z-index: 120;
}
.site-logo img {
  width: 220px;
  height: auto;
  display: block;
}
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255,255,255,.45);
  background: rgba(0,0,0,.12);
  border-radius: 999px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  position: relative;
  z-index: 130;
}
.menu-toggle span {
  width: 18px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
body.nav-open {
  overflow: hidden;
}
body.nav-open .menu-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
body.nav-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}
body.nav-open .menu-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 768px) {
  header.site-header {
    position: fixed;
    padding: 16px 5%;
    background: rgba(26,26,26,.9);
    backdrop-filter: blur(14px);
  }
  .site-logo img {
    width: 160px;
  }
  .menu-toggle {
    display: inline-flex;
    margin-left: auto;
  }
  .site-header nav {
    position: fixed;
    inset: 0;
    background: rgba(18,18,18,.96);
    backdrop-filter: blur(18px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity .28s ease, transform .28s ease;
    z-index: 110;
  }
  .site-header nav ul {
    display: flex !important;
    flex-direction: column;
    gap: 26px;
    text-align: center;
  }
  .site-header nav a {
    font-size: 20px;
    letter-spacing: 3px;
  }
  body.nav-open .site-header nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  .site-header .lang-switch {
    display: flex !important;
    position: fixed;
    left: 50%;
    bottom: 44px;
    transform: translateX(-50%);
    z-index: 120;
    opacity: 0;
    pointer-events: none;
    transition: opacity .28s ease;
  }
  body.nav-open .site-header .lang-switch {
    opacity: 1;
    pointer-events: auto;
  }
}

/* =========================================================
   字体统一优化补丁 2026-04-28
   解决不同电脑/手机系统字体不一致导致 banner 和一级标题忽粗忽细的问题
   ========================================================= */
:root {
  --font-main: Arial, "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  --font-heading: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body,
button,
input,
textarea,
select {
  font-family: var(--font-main);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: geometricPrecision;
}

/* 全站中文标题统一加厚，避免设备字体替换后发虚 */
h1, h2, h3,
.title,
.hero-title,
.page-hero h1,
.video-content h2,
.craft-text h3,
.p-info h3,
.product-detail-card h3,
.value-card h3,
.cert-card h3,
.contact-card h3,
.project-info h3,
.process-card h3 {
  font-family: var(--font-heading);
  font-synthesis-weight: none;
}

/* 首页 banner 主标题：高级但要有力量 */
.hero-title {
  font-size: clamp(42px, 5.2vw, 72px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: 4px;
  text-shadow: 0 5px 24px rgba(0,0,0,.38);
}

/* 首页 banner 副标题 */
.hero-desc {
  font-weight: 500;
  letter-spacing: 1.8px;
  text-shadow: 0 3px 14px rgba(0,0,0,.3);
}

/* 各板块一级标题 */
.title {
  font-size: clamp(30px, 3.2vw, 46px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 1.2px;
}

/* 内页 banner 标题 */
.page-hero h1 {
  font-size: clamp(36px, 4.5vw, 62px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: 2.5px;
  text-shadow: 0 5px 24px rgba(0,0,0,.36);
}

/* 重要模块标题统一中粗 */
.video-content h2,
.craft-text h3,
.vh-left h2 {
  font-weight: 700;
}

.p-info h3,
.product-detail-card h3,
.value-card h3,
.cert-card h3,
.contact-card h3,
.project-info h3,
.process-card h3,
.vc-text h4 {
  font-weight: 600;
  letter-spacing: .5px;
}

/* 导航、按钮、英文小标题更稳定 */
nav a,
.btn,
.subtitle,
.p-link,
.lang-switch,
.lang-switch button,
.filter-btn {
  font-weight: 600;
}

/* 手机端避免标题过大，同时保持厚度 */
@media (max-width: 768px) {
  .hero-title {
    font-size: clamp(34px, 9vw, 44px);
    font-weight: 700;
    line-height: 1.18;
    letter-spacing: 2px;
  }

  .hero-desc {
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 1px;
  }

  .title {
    font-size: clamp(27px, 7vw, 34px);
    font-weight: 700;
    letter-spacing: .8px;
  }

  .page-hero h1 {
    font-size: clamp(30px, 8vw, 38px);
    font-weight: 700;
    letter-spacing: 1px;
  }
}

/* ===== Contact page: four-card layout after adding 1688 store ===== */
.contact-grid{grid-template-columns:repeat(4,1fr)}
.contact-card a{color:inherit;text-decoration:none;border-bottom:1px solid rgba(174,130,72,.35);transition:.25s}
.contact-card a:hover{color:var(--accent);border-bottom-color:var(--accent)}
@media(max-width:1024px){.contact-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.contact-grid{grid-template-columns:1fr}}

/* ===== 首页：生产流程板块 ===== */
.production-process-section{
  background:linear-gradient(180deg,#fbf9f6 0%,#f2ede6 100%);
  position:relative;
  overflow:hidden;
}
.production-process-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 10% 12%,rgba(196,154,108,.16),transparent 28%),
    radial-gradient(circle at 90% 82%,rgba(0,78,51,.12),transparent 30%),
    linear-gradient(135deg,rgba(255,255,255,.75),transparent 42%);
  pointer-events:none;
}
.production-process-section .container{position:relative;z-index:1}
.production-showcase{
  display:grid;
  grid-template-columns:minmax(320px,420px) minmax(0,1fr);
  gap:34px;
  align-items:stretch;
  margin-top:56px;
}
.production-copy-card,
.production-visual-card{
  background:rgba(255,255,255,.72);
  backdrop-filter:blur(8px);
  border:1px solid rgba(196,154,108,.28);
  border-radius:26px;
  box-shadow:0 24px 80px rgba(0,0,0,.08);
}
.production-copy-card{
  padding:34px 30px;
}
.production-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:999px;
  background:rgba(0,78,51,.08);
  color:var(--accent-dark);
  font-size:12px;
  letter-spacing:1.6px;
  text-transform:uppercase;
  font-weight:700;
  margin-bottom:18px;
}
.production-copy-card h3{
  font-size:30px;
  line-height:1.35;
  margin-bottom:16px;
  color:var(--text-dark);
}
.production-copy-card > p{
  color:var(--text-light);
  font-size:15px;
  line-height:1.85;
  margin-bottom:26px;
}
.production-phase-list{
  display:grid;
  gap:16px;
}
.phase-item{
  display:grid;
  grid-template-columns:58px 1fr;
  gap:14px;
  align-items:start;
  padding:16px 0;
  border-top:1px solid rgba(0,0,0,.08);
}
.phase-item:first-child{border-top:none;padding-top:0}
.phase-num{
  width:58px;
  height:58px;
  border-radius:18px;
  background:linear-gradient(145deg,#0b6b47,#0f5136);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  font-weight:700;
  letter-spacing:1px;
  box-shadow:0 14px 30px rgba(15,81,54,.18);
}
.phase-content h4{
  font-size:18px;
  margin-bottom:6px;
  color:var(--text-dark);
}
.phase-content p{
  margin:0;
  color:var(--text-light);
  font-size:14px;
  line-height:1.75;
}
.production-mini-stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
  margin-top:26px;
}
.mini-stat{
  background:linear-gradient(180deg,#fff,#faf7f2);
  border:1px solid rgba(196,154,108,.26);
  border-radius:18px;
  padding:18px 14px;
}
.mini-stat strong{
  display:block;
  font-size:28px;
  line-height:1;
  color:var(--accent-dark);
  margin-bottom:8px;
}
.mini-stat span{
  display:block;
  font-size:13px;
  line-height:1.65;
  color:var(--text-light);
}
.production-visual-card{
  padding:20px;
  display:flex;
  flex-direction:column;
}
.production-visual-topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:15px;
  margin-bottom:16px;
  flex-wrap:wrap;
}
.visual-badge{
  display:inline-flex;
  align-items:center;
  padding:8px 14px;
  border-radius:999px;
  background:linear-gradient(135deg,#c49a6c,#b8834f);
  color:#fff;
  font-size:12px;
  letter-spacing:1.5px;
  text-transform:uppercase;
  font-weight:700;
}
.visual-caption{
  font-size:12px;
  letter-spacing:1.2px;
  text-transform:uppercase;
  color:var(--text-light);
}
.production-process-card{
  background:#fff;
  border:1px solid rgba(196,154,108,.35);
  border-radius:22px;
  padding:18px;
  box-shadow:0 20px 60px rgba(0,0,0,.08);
  overflow:hidden;
}
.production-process-card img{
  display:block;
  width:100%;
  height:auto;
  border-radius:14px;
}
@media(max-width:1200px){
  .production-showcase{grid-template-columns:1fr}
}
@media(max-width:768px){
  .production-copy-card{padding:24px 20px}
  .production-copy-card h3{font-size:24px}
  .production-mini-stats{grid-template-columns:1fr}
  .phase-item{grid-template-columns:52px 1fr}
  .phase-num{width:52px;height:52px;border-radius:16px;font-size:16px}
}

/* ===== 工程案例六宫格优化 ===== */
.project-grid-six{grid-template-columns:repeat(3,1fr)}
.project-grid-six .project-card{height:420px;border-radius:2px}
@media(max-width:1024px){.project-grid-six{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.project-grid-six{grid-template-columns:1fr}.project-grid-six .project-card{height:390px}}

/* ===== 1688 店铺图标 ===== */
.link-1688{display:inline-flex;align-items:center;gap:8px;line-height:1.4}
.icon-1688{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:38px;
  height:22px;
  padding:0 6px;
  border-radius:6px;
  background:linear-gradient(135deg,#ff7a18,#ff4d00);
  color:#fff;
  font-size:12px;
  font-weight:800;
  letter-spacing:.3px;
  box-shadow:0 6px 16px rgba(255,90,0,.24);
}
.contact-card .link-1688-card{margin-top:4px;font-weight:600;color:var(--text-dark)}


/* ===== 首页升级 v3：高端国际范统一视觉 ===== */
.section-header-premium{position:relative}
.section-header-premium .subtitle{position:relative;display:inline-block;padding:0 22px}
.section-header-premium .subtitle::before,
.section-header-premium .subtitle::after{
  content:"";
  position:absolute;
  top:50%;
  width:54px;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(196,154,108,.8));
}
.section-header-premium .subtitle::before{right:100%;margin-right:10px}
.section-header-premium .subtitle::after{left:100%;margin-left:10px;transform:scaleX(-1)}
.section-header-premium .lead,
.section-header-premium p{max-width:760px;margin-left:auto;margin-right:auto}
.premium-shell{
  background:linear-gradient(180deg,rgba(255,255,255,.94),rgba(250,246,240,.92));
  border:1px solid rgba(196,154,108,.24);
  border-radius:28px;
  box-shadow:0 24px 70px rgba(0,0,0,.08);
}
.premium-grid-shell{padding:24px}
.projects-section,
.b2b-service-section,
.production-process-section{position:relative;overflow:hidden}
.projects-section::before,
.b2b-service-section::before,
.production-process-section::after{
  content:"";
  position:absolute;
  inset:auto;
  width:380px;
  height:380px;
  border-radius:50%;
  filter:blur(10px);
  pointer-events:none;
}
.projects-section{
  background:linear-gradient(180deg,#ffffff 0%,#f7f2eb 100%);
}
.projects-section::before{top:-120px;right:-120px;background:radial-gradient(circle,rgba(196,154,108,.14),transparent 62%)}
.b2b-service-section{
  background:linear-gradient(180deg,#fbf8f4 0%,#f4efe8 100%);
  border-top:1px solid rgba(196,154,108,.16);
}
.b2b-service-section::before{bottom:-160px;left:-120px;background:radial-gradient(circle,rgba(11,107,71,.12),transparent 62%)}

/* 生产流程：时间轴 + 右侧说明 */
.production-process-section{background:linear-gradient(180deg,#fcfaf7 0%,#f4eee7 100%)}
.production-layout{
  display:grid;
  grid-template-columns:minmax(0,1.3fr) minmax(320px,.7fr);
  gap:28px;
  margin-top:26px;
  align-items:stretch;
}
.production-timeline{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  padding:28px;
  margin-top:54px;
  margin-bottom:28px;
}
.timeline-track{
  position:absolute;
  left:8%;
  right:8%;
  top:62px;
  height:2px;
  background:linear-gradient(90deg,rgba(196,154,108,.15),rgba(196,154,108,.8),rgba(196,154,108,.15));
}
.timeline-item{position:relative;z-index:1}
.timeline-index{
  width:68px;height:68px;border-radius:22px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,#0b6b47,#0f5136);
  color:#fff;font-size:20px;font-weight:700;letter-spacing:1px;
  box-shadow:0 16px 32px rgba(15,81,54,.20);
  margin-bottom:18px;
}
.timeline-item.active .timeline-index{background:linear-gradient(145deg,#c49a6c,#b8834f);box-shadow:0 16px 32px rgba(196,154,108,.22)}
.timeline-text h4{font-size:18px;color:var(--text-dark);margin-bottom:8px}
.timeline-text p{font-size:14px;line-height:1.75;color:var(--text-light);margin:0}
.production-visual-card,
.production-side-card{padding:22px}
.production-visual-topbar{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:16px}
.visual-badge{
  display:inline-flex;align-items:center;padding:9px 15px;border-radius:999px;
  background:linear-gradient(135deg,#c49a6c,#b8834f);color:#fff;font-size:12px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;
}
.visual-caption{font-size:12px;letter-spacing:1.2px;text-transform:uppercase;color:var(--text-light)}
.production-process-card{
  background:#fff;border:1px solid rgba(196,154,108,.28);border-radius:22px;padding:18px;box-shadow:0 18px 50px rgba(0,0,0,.06)
}
.production-process-card img{border-radius:14px}
.production-side-card{display:flex;flex-direction:column;justify-content:space-between}
.production-kicker{
  display:inline-flex;align-items:center;width:max-content;
  padding:8px 14px;border-radius:999px;
  background:rgba(11,107,71,.08);color:var(--accent-dark);
  font-size:12px;letter-spacing:1.6px;text-transform:uppercase;font-weight:700;margin-bottom:18px;
}
.production-side-card h3{font-size:31px;line-height:1.35;margin-bottom:14px;color:var(--text-dark)}
.production-side-card > p{font-size:15px;line-height:1.85;color:var(--text-light);margin-bottom:24px}
.production-side-points{display:grid;gap:14px;margin-bottom:22px}
.side-point{
  padding:16px 18px;border-radius:18px;background:rgba(255,255,255,.72);
  border:1px solid rgba(196,154,108,.22)
}
.side-point strong{display:block;font-size:16px;color:var(--text-dark);margin-bottom:6px}
.side-point span{display:block;font-size:14px;line-height:1.7;color:var(--text-light)}
.production-mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.mini-stat{padding:18px 14px;border-radius:18px;background:linear-gradient(180deg,#fff,#faf7f2);border:1px solid rgba(196,154,108,.22)}
.mini-stat strong{display:block;font-size:28px;line-height:1;color:var(--accent-dark);margin-bottom:8px}
.mini-stat span{display:block;font-size:13px;line-height:1.65;color:var(--text-light)}

/* 工程案例统一升级 */
.project-grid-six{gap:22px}
.project-grid-six .project-card{
  height:430px;border-radius:24px;overflow:hidden;
  border:1px solid rgba(196,154,108,.18);
  box-shadow:0 18px 48px rgba(0,0,0,.08);
}
.project-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,18,20,0) 15%,rgba(13,18,20,.18) 45%,rgba(11,18,18,.78) 100%);
  pointer-events:none;
}
.project-info{
  z-index:1;left:18px;right:18px;bottom:18px;width:auto;
  padding:22px 22px 20px;border-radius:20px;
  background:linear-gradient(180deg,rgba(8,23,18,.10),rgba(8,23,18,.82));
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.16);
  transform:none;opacity:1;
}
.project-info h3{font-size:22px;line-height:1.35;margin-bottom:8px}
.project-info p{opacity:1;color:rgba(255,255,255,.78);line-height:1.75}
.project-tag{background:rgba(196,154,108,.12);color:#f0cfab;border-color:rgba(240,207,171,.45);padding:5px 12px}
.project-card:hover img{transform:scale(1.05)}
.project-card:hover .project-info{transform:translateY(-4px)}

/* 供应链服务统一升级 */
.b2b-service-grid{gap:22px;margin-top:56px}
.b2b-service-item{
  position:relative;
  border:none;
  padding:28px 24px 24px;
  border-radius:24px;
  background:linear-gradient(180deg,rgba(255,255,255,.92),rgba(247,242,234,.92));
  box-shadow:0 16px 40px rgba(0,0,0,.06);
  min-height:240px;
  overflow:hidden;
}
.b2b-service-item::before{
  content:"";
  position:absolute;left:24px;top:0;width:84px;height:3px;
  background:linear-gradient(90deg,#c49a6c,#0b6b47);
}
.b2b-service-item::after{
  content:counter(service-item, decimal-leading-zero);
  position:absolute;right:22px;top:16px;
  font-size:42px;font-weight:700;line-height:1;
  color:rgba(196,154,108,.14);
}
.b2b-service-grid{counter-reset:service-item}
.b2b-service-item{counter-increment:service-item}
.b2b-service-item h3{font-size:22px;font-weight:500;line-height:1.45;padding-right:56px;margin-bottom:16px}
.b2b-service-item h3 span{font-size:18px;margin-left:8px}
.b2b-service-item p{font-size:14px;line-height:1.8}
.b2b-service-item:hover{transform:translateY(-8px)}

@media(max-width:1200px){
  .production-layout{grid-template-columns:1fr}
  .production-timeline{grid-template-columns:repeat(2,1fr)}
  .timeline-track{display:none}
}
@media(max-width:768px){
  .section-header-premium .subtitle::before,
  .section-header-premium .subtitle::after{display:none}
  .production-timeline{grid-template-columns:1fr;padding:20px}
  .timeline-index{width:58px;height:58px;border-radius:18px;font-size:18px}
  .production-side-card h3{font-size:24px}
  .production-mini-stats{grid-template-columns:1fr}
  .premium-grid-shell{padding:16px}
  .project-grid-six .project-card{height:400px}
  .project-info{left:12px;right:12px;bottom:12px;padding:18px 16px}
  .b2b-service-grid{grid-template-columns:1fr}
}


/* ===== v4 客户版生产流程优化 ===== */
.production-layout{
  display:block;
  margin-top:28px;
}
.production-side-card{
  padding:28px 30px;
  max-width:1180px;
  margin:0 auto;
}
.production-side-inner{
  display:grid;
  grid-template-columns:minmax(280px,0.92fr) minmax(320px,1.08fr);
  gap:24px;
  align-items:start;
}
.production-side-copy{padding:4px 4px 0 4px}
.production-kicker{margin-bottom:18px}
.production-side-card h3{
  font-size:42px;
  line-height:1.28;
  margin-bottom:16px;
  color:var(--text-dark);
}
.production-side-card > p,
.production-side-copy > p{
  font-size:16px;
  line-height:1.9;
  color:var(--text-light);
  margin-bottom:30px;
}
.production-side-points{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
}
.side-point{
  padding:22px 22px 20px;
  border-radius:22px;
  background:rgba(255,255,255,.64);
  border:1px solid rgba(196,154,108,.26);
  box-shadow:none;
}
.side-point strong{
  font-size:20px;
  line-height:1.4;
  margin-bottom:8px;
}
.side-point span{
  font-size:15px;
  line-height:1.8;
}
.production-mini-stats{margin-top:8px}
.mini-stat strong{font-size:26px}
.mini-stat span{font-size:14px}

/* 项目案例毛玻璃背景减弱，保留更多图片 */
.project-card::after{
  background:linear-gradient(180deg,rgba(13,18,20,0) 24%,rgba(13,18,20,.08) 56%,rgba(11,18,18,.42) 100%);
}
.project-info{
  left:14px;
  right:14px;
  bottom:14px;
  padding:16px 16px 14px;
  border-radius:16px;
  background:linear-gradient(180deg,rgba(8,23,18,.04),rgba(8,23,18,.50));
  backdrop-filter:blur(3px);
  border:1px solid rgba(255,255,255,.12);
}
.project-info h3{font-size:20px;margin-bottom:6px}
.project-info p{
  font-size:13px;
  line-height:1.65;
  color:rgba(255,255,255,.84);
}
.project-tag{
  padding:4px 10px;
  margin-bottom:10px;
  background:rgba(196,154,108,.08);
  border-color:rgba(240,207,171,.32);
}

@media (max-width: 1024px){
  .production-side-inner{grid-template-columns:1fr;}
  .production-side-card h3{font-size:34px}
}
@media (max-width: 768px){
  .production-side-card{padding:22px 18px}
  .production-side-card h3{font-size:26px}
  .production-side-copy > p{font-size:15px}
  .side-point{padding:18px 16px}
  .side-point strong{font-size:18px}
  .side-point span{font-size:14px}
  .project-info{left:12px;right:12px;bottom:12px;padding:14px 14px 12px}
  .project-info h3{font-size:18px}
}


/* ===== v5 生产流程精简版：只保留文案卡 + 流程图 ===== */
.production-layout-simple{
  display:grid;
  grid-template-columns:minmax(280px,1fr) minmax(560px,2fr);
  gap:28px;
  margin-top:34px;
  align-items:stretch;
}
.production-side-card-simple{
  padding:28px 30px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  min-height:100%;
}
.production-side-card-simple h3{
  font-size:38px;
  line-height:1.26;
  margin-bottom:16px;
  color:var(--text-dark);
}
.production-side-card-simple > p{
  font-size:15px;
  line-height:1.9;
  color:var(--text-light);
  margin-bottom:24px;
}
.production-mini-stats-simple{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin-top:6px;
}
.production-image-card{
  padding:18px;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:100%;
}
.production-image-card img{
  width:100%;
  height:auto;
  display:block;
  border-radius:18px;
  box-shadow:0 18px 46px rgba(0,0,0,.08);
}
@media (max-width: 1200px){
  .production-layout-simple{
  display:grid;
  grid-template-columns:minmax(280px,1fr) minmax(560px,2fr);
  gap:28px;
  margin-top:34px;
  align-items:stretch;
}
}
@media (max-width: 768px){
  .production-side-card-simple{
  padding:28px 30px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  min-height:100%;
}
  .production-side-card-simple h3{
  font-size:38px;
  line-height:1.26;
  margin-bottom:16px;
  color:var(--text-dark);
}
  .production-side-card-simple > p{
  font-size:15px;
  line-height:1.9;
  color:var(--text-light);
  margin-bottom:24px;
}
  .production-mini-stats-simple{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin-top:6px;
}
  .production-image-card{
  padding:18px;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:100%;
}
}


/* ===== v7 细节修复：工艺图手机完整展示 + 生产流程手机优化 + 案例悬停展示 ===== */
@media (max-width: 768px){
  .craft-section .craft-img,
  .craft-img{
    overflow: visible !important;
    height: auto !important;
  }
  .craft-section .craft-img img,
  .craft-img img{
    width: 100% !important;
    height: auto !important;
    max-height: none !important;
    object-fit: contain !important;
    display: block !important;
  }
}

@media (max-width: 768px){
  .production-process-section .section-header{
    margin-bottom: 30px !important;
  }
  .production-process-section .title{
    font-size: 30px !important;
    line-height: 1.25 !important;
  }
  .production-process-section .lead{
    font-size: 14px !important;
    line-height: 1.8 !important;
  }
  .production-layout-simple{
    display: flex !important;
    flex-direction: column !important;
    gap: 18px !important;
    margin-top: 22px !important;
  }
  .production-side-card-simple{
    order: 1;
    padding: 22px 18px !important;
    border-radius: 22px !important;
  }
  .production-side-card-simple h3{
    font-size: 26px !important;
    line-height: 1.35 !important;
    margin-bottom: 14px !important;
  }
  .production-side-card-simple > p{
    font-size: 14px !important;
    line-height: 1.85 !important;
    margin-bottom: 18px !important;
  }
  .production-mini-stats-simple{
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }
  .production-mini-stats-simple .mini-stat{
    padding: 14px 16px !important;
  }
  .production-image-card{
    order: 2;
    padding: 10px !important;
    border-radius: 22px !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    -webkit-overflow-scrolling: touch;
    justify-content: flex-start !important;
  }
  .production-image-card img{
    width: auto !important;
    min-width: 720px !important;
    max-width: none !important;
    height: auto !important;
    border-radius: 14px !important;
  }
}

/* 全球案例：默认只展示标题，悬停后显示完整文案，减少遮挡图片 */
.project-card::after{
  background: linear-gradient(180deg, rgba(13,18,20,0) 55%, rgba(11,18,18,.42) 100%) !important;
}
.project-info{
  left: 14px !important;
  right: 14px !important;
  bottom: 14px !important;
  width: auto !important;
  max-height: 70px !important;
  overflow: hidden !important;
  padding: 16px 18px !important;
  border-radius: 16px !important;
  background: rgba(8,23,18,.38) !important;
  backdrop-filter: blur(2px) !important;
  border: 1px solid rgba(255,255,255,.12) !important;
  transform: none !important;
  opacity: 1 !important;
  transition: max-height .38s ease, background .38s ease, backdrop-filter .38s ease, transform .38s ease !important;
}
.project-info h3{
  margin: 0 !important;
  font-size: 20px !important;
  line-height: 1.35 !important;
}
.project-info .project-tag,
.project-info p{
  opacity: 0 !important;
  max-height: 0 !important;
  overflow: hidden !important;
  margin: 0 !important;
  transform: translateY(8px) !important;
  transition: opacity .3s ease, max-height .3s ease, margin .3s ease, transform .3s ease !important;
}
.project-card:hover .project-info{
  max-height: 250px !important;
  padding: 20px 20px 18px !important;
  background: linear-gradient(180deg, rgba(8,23,18,.12), rgba(8,23,18,.82)) !important;
  backdrop-filter: blur(8px) !important;
  transform: translateY(-4px) !important;
}
.project-card:hover .project-info .project-tag{
  opacity: 1 !important;
  max-height: 42px !important;
  margin-bottom: 10px !important;
  transform: translateY(0) !important;
}
.project-card:hover .project-info p{
  opacity: 1 !important;
  max-height: 110px !important;
  margin-top: 8px !important;
  transform: translateY(0) !important;
}
@media (max-width: 768px){
  .project-info{
    left: 12px !important;
    right: 12px !important;
    bottom: 12px !important;
    max-height: 64px !important;
    padding: 14px 14px !important;
    background: rgba(8,23,18,.42) !important;
    backdrop-filter: blur(2px) !important;
  }
  .project-info h3{
    font-size: 18px !important;
  }
  .project-info .project-tag,
  .project-info p{
    display: none !important;
  }
}


/* ===== 2026 Product Matrix Upgrade: 商用门窗 / 家用门窗 / 产品详情页 ===== */
.product-matrix-hero .page-hero-content{max-width:980px}.product-system-intro{background:#0b0c0d;padding-top:80px;padding-bottom:80px}.dual-system-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}.dual-system-card{min-height:360px;padding:48px;border:1px solid rgba(255,255,255,.12);border-radius:28px;color:#fff;position:relative;overflow:hidden;background:linear-gradient(135deg,rgba(15,17,21,.9),rgba(15,17,21,.55)),url('../images/banner3.jpg') center/cover;display:flex;flex-direction:column;justify-content:flex-end;box-shadow:0 30px 80px rgba(0,0,0,.28)}.dual-system-card.residential-card{background:linear-gradient(135deg,rgba(15,17,21,.86),rgba(15,17,21,.42)),url('../images/banner1.jpg') center/cover}.dual-system-card span{color:var(--accent);letter-spacing:3px;font-size:12px;margin-bottom:14px}.dual-system-card h2{font-size:42px;font-weight:400;margin-bottom:14px;color:#fff}.dual-system-card p{max-width:520px;color:rgba(255,255,255,.72);line-height:1.8;margin-bottom:24px}.dual-system-card b{color:#fff;font-weight:500;letter-spacing:1px}.product-matrix-section{background:#f5f2ed}.system-product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:34px}.system-card{background:#fff;border-radius:26px;overflow:hidden;box-shadow:0 24px 70px rgba(21,21,21,.08);border:1px solid rgba(0,0,0,.04);transition:.45s ease}.system-card:hover{transform:translateY(-8px);box-shadow:0 34px 90px rgba(21,21,21,.14)}.system-media{height:320px;display:block;position:relative;overflow:hidden}.system-media img{width:100%;height:100%;object-fit:cover;transition:.7s ease}.system-card:hover .system-media img{transform:scale(1.06)}.system-media span{position:absolute;left:22px;top:22px;padding:8px 14px;border-radius:999px;background:rgba(11,12,13,.68);color:#fff;border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(8px);font-size:13px}.system-body{padding:34px}.system-meta{font-size:12px;letter-spacing:2px;color:var(--accent);text-transform:uppercase;margin-bottom:10px}.system-body h3{font-size:28px;font-weight:400;margin-bottom:14px;color:#151515}.system-body p{color:#666;line-height:1.8;margin-bottom:18px}.series-line{font-size:14px;color:#222;background:#f4efe8;border-left:3px solid var(--accent);padding:12px 14px;margin-bottom:18px}.system-body ul{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:22px}.system-body li{font-size:13px;color:#555;background:#f8f8f8;border-radius:999px;padding:8px 10px;text-align:center}.detail-hero{min-height:86vh;background-size:cover;background-position:center;position:relative;display:flex;align-items:center;color:#fff}.detail-hero-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.78),rgba(0,0,0,.42),rgba(0,0,0,.08))}.detail-hero-content{position:relative;z-index:1;max-width:860px;margin-left:8%;padding-top:80px}.detail-hero-content span{color:var(--accent);letter-spacing:3px;text-transform:uppercase;font-size:13px}.detail-hero-content h1{font-size:68px;line-height:1.08;font-weight:300;margin:18px 0 24px;color:#fff}.detail-hero-content p{font-size:20px;line-height:1.85;color:rgba(255,255,255,.78);max-width:760px}.detail-actions{display:flex;gap:18px;margin-top:38px}.detail-overview{background:#fff}.detail-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:48px;align-items:start}.detail-spec-panel{background:#111;color:#fff;border-radius:26px;padding:38px;box-shadow:0 26px 70px rgba(0,0,0,.18)}.detail-spec-panel h3{color:var(--accent);font-size:15px;letter-spacing:2px;margin:0 0 10px}.detail-spec-panel p{color:rgba(255,255,255,.75);line-height:1.7;margin-bottom:28px}.feature-dark{background:#0b0c0d;color:#fff}.feature-dark .title{color:#fff}.advantage-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.advantage-card{background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.03));border:1px solid rgba(255,255,255,.1);border-radius:24px;padding:34px;min-height:230px}.advantage-card span{color:var(--accent);font-size:13px;letter-spacing:2px}.advantage-card h3{font-size:22px;font-weight:400;color:#fff;margin:20px 0 14px}.advantage-card p{color:rgba(255,255,255,.62);line-height:1.8}.tech-section{background:#f6f3ee}.tech-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}.tech-image{border-radius:30px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.16)}.tech-image img{width:100%;height:560px;object-fit:cover;display:block}.tech-list{margin-top:24px}.tech-list li{display:flex;justify-content:space-between;gap:24px;padding:20px 0;border-bottom:1px solid rgba(0,0,0,.1)}.tech-list strong{font-weight:500;color:#111;min-width:120px}.tech-list span{color:#666;line-height:1.7}.detail-cta{background:#111;color:#fff;text-align:center}.detail-cta h2{font-size:42px;font-weight:300;color:#fff;margin-bottom:16px}.detail-cta p{color:rgba(255,255,255,.65);max-width:760px;margin:0 auto 32px;line-height:1.8}
@media(max-width:1024px){.system-product-grid,.dual-system-grid,.detail-grid,.tech-layout{grid-template-columns:1fr}.advantage-grid{grid-template-columns:repeat(2,1fr)}.system-body ul{grid-template-columns:1fr}.detail-hero-content h1{font-size:48px}.detail-hero-content{margin:0 24px}.tech-image img{height:420px}}
@media(max-width:640px){.dual-system-card{min-height:280px;padding:28px;border-radius:20px}.dual-system-card h2{font-size:32px}.system-media{height:240px}.system-body{padding:24px}.advantage-grid{grid-template-columns:1fr}.detail-hero-content h1{font-size:38px}.detail-hero-content p{font-size:16px}.detail-actions{flex-direction:column}.tech-list li{display:block}.tech-list strong{display:block;margin-bottom:8px}}


/* ===== Product image click entry / bilingual detail pages ===== */
.p-img-link{display:block;color:inherit}
.p-img-box,.system-media,.related-thumb{position:relative;overflow:hidden}
.p-img-box::after,.system-media::after,.related-thumb::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg, rgba(0,0,0,0) 45%, rgba(0,0,0,.38) 100%);pointer-events:none}
.enter-detail,.media-enter{position:absolute;left:22px;bottom:22px;z-index:2;display:inline-flex;align-items:center;gap:8px;padding:14px 20px;border-radius:999px;background:rgba(8,10,12,.72);border:1px solid rgba(255,255,255,.18);color:#fff;font-size:14px;letter-spacing:1px;line-height:1;box-shadow:0 14px 35px rgba(0,0,0,.22);backdrop-filter:blur(10px);pointer-events:none}
.enter-detail::before,.media-enter::before{content:'↗';font-size:15px;color:var(--accent);line-height:1}
.product-item:hover .enter-detail,.system-card:hover .media-enter{transform:translateY(-2px);background:rgba(8,10,12,.84)}
.related-section{background:#f7f7f7}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.related-card{display:block;background:#fff;border:1px solid rgba(0,0,0,.06);color:inherit;text-decoration:none;transition:.35s ease;box-shadow:0 12px 30px rgba(0,0,0,.04)}
.related-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(0,0,0,.08)}
.related-thumb{height:220px}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.related-card:hover .related-thumb img{transform:scale(1.05)}
.related-body{padding:22px}
.related-body span{display:inline-block;font-size:12px;letter-spacing:1.6px;text-transform:uppercase;color:var(--accent);margin-bottom:10px}
.related-body h3{font-size:22px;margin:0 0 10px}
.related-body p{margin:0 0 16px;color:#666;line-height:1.7}
.related-body b{font-size:14px;color:var(--text-main)}
@media (max-width: 992px){.related-grid{grid-template-columns:1fr 1fr}.enter-detail,.media-enter{left:18px;bottom:18px;padding:12px 16px;font-size:13px}}
@media (max-width: 768px){.related-grid{grid-template-columns:1fr}.related-thumb{height:200px}.enter-detail,.media-enter{left:14px;bottom:14px;padding:10px 14px;font-size:12px}}

/* ===== Product page interaction fixes ===== */
.dual-system-card{cursor:pointer;text-decoration:none}
.dual-system-card:hover{transform:translateY(-6px);border-color:rgba(198,163,107,.55)}
.dual-system-card b{display:inline-flex;align-items:center;gap:8px}
html{scroll-behavior:smooth}


/* ===== 2026-05 bilingual fixes and commitments section ===== */
.commitment-section{
  background:
    radial-gradient(circle at top left, rgba(212,166,86,.18), transparent 28%),
    linear-gradient(135deg, #0b0d10 0%, #171a20 55%, #20242c 100%);
  color:#fff;
}
.commitment-section .section-header-light .subtitle,
.commitment-section .section-header-light .lead,
.commitment-section .section-header-light .title{color:#fff}
.commitment-section .section-header-light .subtitle{opacity:.72}
.commit-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:22px;margin-top:42px}
.commit-card{position:relative;background:linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.04));border:1px solid rgba(255,255,255,.10);border-radius:24px;padding:28px 24px 24px;box-shadow:0 20px 50px rgba(0,0,0,.25);backdrop-filter: blur(10px);overflow:hidden;min-height:250px}
.commit-card::before{content:'';position:absolute;inset:auto -20% -35% auto;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle, rgba(212,166,86,.18), transparent 65%)}
.commit-no{font-size:14px;letter-spacing:2px;color:rgba(255,255,255,.6);margin-bottom:16px}
.commit-icon{width:58px;height:58px;border-radius:18px;display:flex;align-items:center;justify-content:center;font-size:28px;background:linear-gradient(135deg, rgba(212,166,86,.3), rgba(212,166,86,.08));border:1px solid rgba(212,166,86,.28);margin-bottom:18px}
.commit-card h3{font-size:26px;line-height:1.2;margin:0 0 14px;color:#fff}
.commit-card p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);margin:0}
@media (max-width: 1200px){.commit-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
@media (max-width: 768px){.commit-grid{grid-template-columns:1fr}.commit-card{min-height:auto;padding:24px 20px}.commit-card h3{font-size:22px}}


/* ===== 极窄自动门：画册式详情页 ===== */
.jzzdm-hero{background-position:center top;}
.brochure-detail-section{background:linear-gradient(180deg,#f8f5ef 0%, #ece7df 100%);}
.brochure-container{max-width:1120px;}
.brochure-toolbar{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:0 auto 34px;padding:18px 22px;border-radius:18px;background:#111;color:#fff;box-shadow:0 18px 50px rgba(0,0,0,.14)}
.brochure-toolbar span{letter-spacing:1px;color:rgba(255,255,255,.78)}
.brochure-stack{display:flex;flex-direction:column;gap:28px;align-items:center;}
.brochure-page{width:100%;max-width:920px;margin:0;background:#fff;border-radius:22px;overflow:hidden;box-shadow:0 26px 80px rgba(20,20,20,.12);border:1px solid rgba(0,0,0,.06)}
.brochure-page img{display:block;width:100%;height:auto;background:#fff;}
.brochure-page figcaption{padding:12px 20px;text-align:right;font-size:12px;letter-spacing:2px;color:#888;background:#fff;border-top:1px solid #f0f0f0;text-transform:uppercase;}
@media(max-width:768px){.brochure-toolbar{flex-direction:column;align-items:flex-start}.brochure-page{border-radius:14px}.brochure-stack{gap:18px}}