/* =============================================
   PHARMFLEX 企业官网主样式
   主题色: #009688 (制药行业标准绿)
   ============================================= */

/* === CSS变量 === */
:root {
    --primary: #009688;
    --primary-dark: #00796b;
    --primary-light: #4db6ac;
    --primary-pale: #e0f2f1;
    --secondary: #37474f;
    --accent: #ff6f00;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-light: #adb5bd;
    --bg-light: #f8f9fa;
    --bg-section: #f4f9f8;
    --border: #dee2e6;
    --white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.15);
    --radius: 8px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
    --font-main: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

/* === 重置 === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); color: var(--text-primary); line-height: 1.7; background: var(--white); }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
input, textarea, select, button { font-family: inherit; }

/* === 布局 === */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-sm { padding: 50px 0; }
.section-bg { background: var(--bg-section); }
.section-dark { background: var(--secondary); color: var(--white); }

/* === 标题组件 === */
.section-header { text-align: center; margin-bottom: 50px; }
.section-header h2 { font-size: 2rem; font-weight: 700; color: var(--text-primary); margin-bottom: 12px; }
.section-header p { color: var(--text-secondary); font-size: 1.05rem; max-width: 600px; margin: 0 auto; }
.section-divider { width: 60px; height: 3px; background: linear-gradient(90deg, var(--primary), var(--primary-light)); margin: 14px auto; border-radius: 2px; }

/* === 按钮 === */
.btn { display: inline-block; padding: 12px 32px; border-radius: var(--radius); font-weight: 600; font-size: 0.95rem; cursor: pointer; border: 2px solid transparent; transition: var(--transition); white-space: nowrap; }
.btn-primary { background: var(--primary); color: var(--white); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: var(--white); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); }
.btn-white { background: var(--white); color: var(--primary); border-color: var(--white); }
.btn-white:hover { background: transparent; color: var(--white); }
.btn-outline-sm { display: inline-block; padding: 6px 16px; border: 1px solid rgba(255,255,255,0.5); color: rgba(255,255,255,0.8); border-radius: 4px; font-size: 0.85rem; transition: var(--transition); }
.btn-outline-sm:hover { border-color: var(--white); color: var(--white); }
.btn-sm { padding: 8px 20px; font-size: 0.875rem; }

/* === 顶部信息栏 === */
.topbar { background: var(--secondary); color: rgba(255,255,255,0.85); font-size: 0.82rem; padding: 7px 0; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; }
.topbar-left { display: flex; gap: 24px; }
.topbar-left span { display: flex; align-items: center; gap: 6px; }
.topbar-left i { color: var(--primary-light); }
.topbar-wechat-btn { cursor: pointer; transition: var(--transition); }
.topbar-wechat-btn:hover { color: #fff; }
.topbar-slogan { color: var(--primary-light); font-weight: 500; letter-spacing: 0.05em; }
.topbar-right { display: flex; align-items: center; gap: 18px; }
.lang-switcher { display: flex; align-items: center; }
.lang-btn { color: rgba(255,255,255,0.85); font-weight: 600; font-size: 0.8rem; padding: 3px 10px; border: 1px solid rgba(255,255,255,0.35); border-radius: 3px; transition: all 0.2s; text-decoration: none; }
.lang-btn:hover { color: #fff; background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.6); }

/* === 主导航 === */
.main-header { background: var(--white); box-shadow: var(--shadow-sm); position: sticky; top: 0; z-index: 1000; transition: var(--transition); }
.main-header .container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo-wrap a.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon { width: 44px; height: 44px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: var(--white); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1rem; border-radius: var(--radius); letter-spacing: 1px; flex-shrink: 0; }
.logo-text { display: flex; flex-direction: column; }
.logo-name { font-size: 1.25rem; font-weight: 800; color: var(--primary); letter-spacing: 0.05em; line-height: 1.2; }
.logo-sub { font-size: 0.7rem; color: var(--text-secondary); letter-spacing: 0.1em; }
.main-nav > ul { display: flex; align-items: center; gap: 4px; }
.main-nav > ul > li { position: relative; }
.main-nav > ul > li > a { display: flex; align-items: center; gap: 4px; padding: 8px 14px; border-radius: var(--radius); color: var(--text-primary); font-weight: 500; font-size: 0.92rem; transition: var(--transition); }
.main-nav > ul > li > a:hover,
.main-nav > ul > li > a.active { color: var(--primary); background: var(--primary-pale); }
.main-nav > ul > li > a i { font-size: 0.7rem; transition: transform 0.2s; }
.main-nav li:hover > a > i { transform: rotate(180deg); }
.dropdown { position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%); background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-lg); min-width: 180px; opacity: 0; visibility: hidden; transition: var(--transition); pointer-events: none; border-top: 2px solid var(--primary); }
.has-dropdown:hover .dropdown { opacity: 1; visibility: visible; pointer-events: all; transform: translateX(-50%) translateY(0); }
.dropdown li a { display: block; padding: 10px 18px; color: var(--text-primary); font-size: 0.88rem; white-space: nowrap; border-bottom: 1px solid var(--bg-light); }
.dropdown li:last-child a { border-bottom: none; }
.dropdown li a:hover { color: var(--primary); background: var(--primary-pale); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; background: none; border: none; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }

/* === Hero横幅 === */
.hero { position: relative; min-height: 600px; display: flex; align-items: center; background: linear-gradient(135deg, #004d40 0%, #00695c 40%, #00897b 100%); overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"); }
.hero-content { position: relative; z-index: 1; max-width: 700px; }
.hero-badge { display: inline-block; background: rgba(255,255,255,0.15); color: rgba(255,255,255,0.9); padding: 5px 16px; border-radius: 20px; font-size: 0.82rem; letter-spacing: 0.1em; margin-bottom: 20px; border: 1px solid rgba(255,255,255,0.2); }
.hero h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; color: var(--white); line-height: 1.2; margin-bottom: 18px; }
.hero h1 span { color: #80cbc4; }
.hero p { font-size: 1.1rem; color: rgba(255,255,255,0.85); margin-bottom: 32px; max-width: 550px; }
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 60px; background: rgba(0,0,0,0.15); border-radius: var(--radius); overflow: hidden; max-width: 500px; }
.hero-stat { padding: 20px 24px; text-align: center; border-right: 1px solid rgba(255,255,255,0.1); }
.hero-stat:last-child { border-right: none; }
.hero-stat .num { font-size: 1.8rem; font-weight: 800; color: #80cbc4; line-height: 1; }
.hero-stat .label { font-size: 0.78rem; color: rgba(255,255,255,0.7); margin-top: 4px; }
.hero-deco { position: absolute; right: -50px; top: 50%; transform: translateY(-50%); width: 500px; height: 500px; border: 60px solid rgba(255,255,255,0.04); border-radius: 50%; }
.hero-deco::before { content: ''; position: absolute; inset: 40px; border: 30px solid rgba(255,255,255,0.04); border-radius: 50%; }

/* === 面包屑 === */
.breadcrumb-bar { background: var(--bg-light); border-bottom: 1px solid var(--border); padding: 12px 0; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-secondary); }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--text-light); }
.breadcrumb .current { color: var(--primary); }

/* === 特点/优势卡片 === */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 28px; }
.feature-card { background: var(--white); border-radius: var(--radius-lg); padding: 36px 28px; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition); text-align: center; }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.feature-icon { width: 64px; height: 64px; background: linear-gradient(135deg, var(--primary-pale), #b2dfdb); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 1.6rem; color: var(--primary); }
.feature-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--text-primary); margin-bottom: 10px; }
.feature-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; }

/* === 产品卡片 === */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.product-card { background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition); }
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.product-card-img { height: 200px; background: linear-gradient(135deg, var(--bg-light) 0%, var(--primary-pale) 100%); display: flex; align-items: center; justify-content: center; overflow: hidden; position: relative; }
.product-card-img img { width: 100%; height: 100%; object-fit: cover; }
.product-card-img .no-img { font-size: 3rem; color: var(--primary-light); opacity: 0.6; }
.product-badge { position: absolute; top: 12px; left: 12px; background: var(--primary); color: var(--white); font-size: 0.72rem; padding: 3px 10px; border-radius: 12px; font-weight: 600; }
.product-card-body { padding: 20px; }
.product-card-body .cat-tag { font-size: 0.75rem; color: var(--primary); background: var(--primary-pale); padding: 2px 10px; border-radius: 12px; display: inline-block; margin-bottom: 8px; }
.product-card-body h3 { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.product-card-body p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 14px; }
.product-card-footer { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--border); padding: 12px 20px; }
.product-card-footer .model { font-size: 0.78rem; color: var(--text-light); }
.product-card-footer a { font-size: 0.82rem; color: var(--primary); font-weight: 600; }
.product-card-footer a:hover { color: var(--primary-dark); }

/* === 行业卡片 === */
.industry-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.industry-card { background: var(--white); border-radius: var(--radius-lg); padding: 32px 24px; text-align: center; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition); cursor: pointer; position: relative; overflow: hidden; }
.industry-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--primary), var(--primary-light)); transform: scaleX(0); transition: transform 0.3s ease; }
.industry-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.industry-card:hover::before { transform: scaleX(1); }
.industry-icon { font-size: 2.5rem; margin-bottom: 16px; }
.industry-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--text-primary); margin-bottom: 10px; }
.industry-card p { font-size: 0.84rem; color: var(--text-secondary); line-height: 1.6; }

/* === 案例卡片 === */
.case-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 28px; }
.case-card { background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition); }
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.case-card-img { height: 180px; background: linear-gradient(135deg, var(--primary-dark), var(--primary)); display: flex; align-items: center; justify-content: center; }
.case-card-img img { width: 100%; height: 100%; object-fit: cover; }
.case-card-img .case-icon { font-size: 3rem; opacity: 0.7; }
.case-card-body { padding: 22px; }
.case-tag { display: inline-block; font-size: 0.75rem; background: var(--primary-pale); color: var(--primary); padding: 2px 10px; border-radius: 12px; margin-bottom: 10px; }
.case-card-body h3 { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; line-height: 1.5; }
.case-card-body p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 14px; }
.case-client { font-size: 0.8rem; color: var(--text-light); display: flex; align-items: center; gap: 6px; }
.case-client i { color: var(--primary-light); }

/* === 新闻列表 === */
.news-list { display: grid; gap: 20px; }
.news-item { background: var(--white); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); border: 1px solid var(--border); display: flex; gap: 20px; align-items: flex-start; transition: var(--transition); }
.news-item:hover { box-shadow: var(--shadow-md); transform: translateX(4px); }
.news-date { flex-shrink: 0; text-align: center; background: var(--primary-pale); border-radius: var(--radius); padding: 10px 14px; }
.news-date .day { font-size: 1.5rem; font-weight: 800; color: var(--primary); line-height: 1; }
.news-date .month { font-size: 0.72rem; color: var(--text-secondary); margin-top: 2px; }
.news-body { flex: 1; }
.news-body h3 { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.news-body h3 a:hover { color: var(--primary); }
.news-body p { font-size: 0.86rem; color: var(--text-secondary); margin-bottom: 10px; }
.news-meta { font-size: 0.78rem; color: var(--text-light); display: flex; gap: 16px; }
.news-meta span { display: flex; align-items: center; gap: 4px; }
.news-meta i { color: var(--primary-light); }

/* === 页面横幅 === */
.page-banner { background: linear-gradient(135deg, #004d40, #00796b); padding: 60px 0; color: var(--white); position: relative; overflow: hidden; }
.page-banner::after { content: ''; position: absolute; right: 10%; top: 50%; transform: translateY(-50%); width: 300px; height: 300px; border: 50px solid rgba(255,255,255,0.04); border-radius: 50%; }
.page-banner h1 { font-size: 2rem; font-weight: 700; margin-bottom: 10px; }
.page-banner p { color: rgba(255,255,255,0.8); font-size: 1rem; }

/* === 产品详情页 === */
.product-detail { padding: 50px 0; }
.product-detail-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 50px; align-items: start; }
.product-images .main-img { width: 100%; aspect-ratio: 1; background: var(--bg-light); border-radius: var(--radius-lg); overflow: hidden; display: flex; align-items: center; justify-content: center; border: 1px solid var(--border); }
.product-images .main-img img { width: 100%; height: 100%; object-fit: contain; padding: 20px; }
.product-images .main-img .no-img { font-size: 6rem; color: var(--primary-light); opacity: 0.4; }
.product-info .tag-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.product-info .tag { background: var(--primary-pale); color: var(--primary); padding: 3px 12px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; }
.product-info h1 { font-size: 1.6rem; font-weight: 800; color: var(--text-primary); margin-bottom: 12px; }
.product-info .summary { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 24px; line-height: 1.8; }
.spec-table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.spec-table tr { border-bottom: 1px solid var(--border); }
.spec-table td { padding: 10px 14px; font-size: 0.88rem; }
.spec-table td:first-child { color: var(--text-secondary); width: 35%; background: var(--bg-light); font-weight: 500; }
.product-features-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0; }
.pf-tag { background: var(--primary); color: var(--white); padding: 5px 14px; border-radius: 20px; font-size: 0.82rem; }

/* === 规格参数数据表（大表格优化）=== */
.spec-data-section {
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.spec-data-section h2 {
    background: linear-gradient(135deg, var(--primary), #007a6e);
    color: var(--white);
    padding: 16px 24px;
    font-size: 1.15rem;
    margin: 0 !important;
}
.spec-data-table-wrap {
    padding: 20px 24px 24px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.spec-data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.88rem;
    min-width: 400px;
}
.spec-data-table thead th {
    background: var(--primary-pale);
    color: var(--primary-dark, var(--primary));
    padding: 12px 18px;
    text-align: center;
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    white-space: nowrap;
    border-bottom: 2px solid var(--primary);
    position: relative;
}
.spec-data-table thead th:first-child {
    border-radius: 8px 0 0 0;
}
.spec-data-table thead th:last-child {
    border-radius: 0 8px 0 0;
}
.spec-data-table tbody tr {
    transition: all 0.2s ease;
}
.spec-data-table tbody tr:hover {
    background: #f0faf7 !important;
    transform: scale(1.003);
    box-shadow: 0 1px 4px rgba(0,150,136,0.08);
}
.spec-data-table tbody tr:hover td {
    color: var(--text-primary);
}
.spec-data-table tbody td {
    padding: 10px 18px;
    text-align: center;
    border-bottom: 1px solid #f0f0f0;
    color: var(--text-secondary);
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.86rem;
}
/* 第一列 PN 加粗突出 */
.spec-data-table tbody td:first-child {
    font-weight: 700;
    font-family: inherit;
    color: var(--primary-dark, var(--primary)) !important;
    letter-spacing: 0.02em;
}
/* 隔行变色 */
.spec-data-table tbody tr:nth-child(even) {
    background: #fbfdfc;
}
/* 最后行底部圆角 */
.spec-data-table tbody tr:last-child td {
    border-bottom: none;
}
.spec-data-table tbody tr:last-child td:first-child {
    border-radius: 0 0 0 8px;
}
.spec-data-table tbody tr:last-child td:last-child {
    border-radius: 0 0 8px 0;
}

/* === 材料对比表（富文本/左对齐）=== */
.spec-compare-table .spec-data-table { min-width: 700px; }
.spec-compare-table .spec-data-table tbody td {
    text-align: left !important;
    vertical-align: top;
    padding: 14px 20px;
    font-family: inherit;
    font-size: 0.88rem;
    line-height: 1.7;
    color: var(--text-secondary);
}
.spec-compare-table .spec-data-table tbody td:first-child {
    color: var(--primary) !important;
    font-weight: 700 !important;
    width: 22%;
}
.spec-compare-table .spec-data-table tbody td:nth-child(2) {
    width: 23%;
}
.spec-compare-table .spec-data-table tbody td:nth-child(3) {
    width: 27%;
}
.spec-compare-table .spec-data-table tbody td:last-child {
    width: 28%;
}
.spec-compare-table .spec-data-table tbody td ul {
    margin: 4px 0;
    padding-left: 18px;
}
.spec-compare-table .spec-data-table tbody td li {
    margin-bottom: 5px;
    list-style-type: none;
    position: relative;
    padding-left: 14px;
}
.spec-compare-table .spec-data-table tbody td li:before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}
.spec-compare-table .spec-data-table small {
    color: #999;
    font-size: 0.82rem;
}

/* === 产品详情描述区 === */
.product-description {
    line-height: 1.9;
    color: var(--text-secondary);
    font-size: 0.95rem;
}
.product-description p {
    margin-bottom: 16px;
}

/* === 侧边栏 === */
.sidebar-widget { background: var(--white); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; margin-bottom: 20px; }
.widget-title { background: var(--primary); color: var(--white); padding: 14px 20px; font-weight: 700; font-size: 0.95rem; }
.widget-content { padding: 16px; }
.sidebar-menu li a { display: block; padding: 9px 14px; font-size: 0.88rem; color: var(--text-primary); border-radius: 4px; transition: var(--transition); border-left: 3px solid transparent; }
.sidebar-menu li a:hover,
.sidebar-menu li a.active { color: var(--primary); background: var(--primary-pale); border-left-color: var(--primary); }

/* === 联系页面 === */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 40px; align-items: start; }
.contact-info-card { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: var(--white); border-radius: var(--radius-lg); padding: 40px; }
.contact-info-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 24px; }
.contact-item { display: flex; gap: 14px; margin-bottom: 22px; align-items: flex-start; }
.contact-item-icon { width: 40px; height: 40px; background: rgba(255,255,255,0.15); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-item-text { flex: 1; }
.contact-item-text .label { font-size: 0.78rem; color: rgba(255,255,255,0.7); margin-bottom: 3px; }
.contact-item-text .value { font-size: 0.95rem; font-weight: 600; }

/* === 表单 === */
.form-card { background: var(--white); border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow-sm); border: 1px solid var(--border); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-grid .form-group { margin-bottom: 0; }
.form-group label { display: block; font-size: 0.88rem; font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }
.form-group label .required { color: #e53935; margin-left: 2px; }
.form-control { width: 100%; padding: 10px 14px; border: 1.5px solid var(--border); border-radius: var(--radius); font-size: 0.9rem; color: var(--text-primary); transition: var(--transition); background: var(--white); }
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,150,136,0.12); }
textarea.form-control { resize: vertical; min-height: 120px; }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23009688' d='M1 1l5 5 5-5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }
.form-submit { margin-top: 6px; }
.form-success { background: #e8f5e9; border: 1px solid #a5d6a7; border-radius: var(--radius); padding: 16px 20px; color: #388e3c; display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.form-error { background: #fff3e0; border: 1px solid #ffcc80; border-radius: var(--radius); padding: 12px 16px; color: #e65100; font-size: 0.85rem; margin-bottom: 14px; }

/* === 关于我们 === */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text h2 { font-size: 1.8rem; font-weight: 800; color: var(--text-primary); margin-bottom: 18px; }
.about-text p { color: var(--text-secondary); margin-bottom: 14px; line-height: 1.8; }
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 32px; }
.about-stat { text-align: center; padding: 20px; background: var(--bg-section); border-radius: var(--radius); }
.about-stat .num { font-size: 2rem; font-weight: 800; color: var(--primary); }
.about-stat .label { font-size: 0.8rem; color: var(--text-secondary); margin-top: 4px; }
.about-visual { background: linear-gradient(135deg, var(--primary-pale), var(--primary-pale) 50%, rgba(0,150,136,0.15)); border-radius: var(--radius-lg); aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; font-size: 6rem; position: relative; overflow: hidden; }
.cert-list { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.cert-badge { display: flex; align-items: center; gap: 8px; padding: 8px 16px; background: var(--white); border: 1px solid var(--border); border-radius: 30px; font-size: 0.82rem; color: var(--text-secondary); box-shadow: var(--shadow-sm); }
.cert-badge i { color: var(--primary); }
.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ''; position: absolute; left: 8px; top: 0; bottom: 0; width: 2px; background: linear-gradient(var(--primary), var(--primary-light)); }
.timeline-item { position: relative; margin-bottom: 28px; }
.timeline-item::before { content: ''; position: absolute; left: -24px; top: 5px; width: 12px; height: 12px; background: var(--primary); border-radius: 50%; border: 2px solid var(--white); box-shadow: 0 0 0 3px var(--primary-light); }
.timeline-year { font-size: 0.75rem; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.timeline-text { font-size: 0.88rem; color: var(--text-secondary); }

/* === 分页 === */
.pagination-nav { display: flex; justify-content: center; padding: 30px 0; }
.pagination { display: flex; gap: 6px; }
.pagination li a { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: var(--radius); border: 1.5px solid var(--border); color: var(--text-primary); font-size: 0.88rem; transition: var(--transition); }
.pagination li.active a,
.pagination li a:hover { background: var(--primary); border-color: var(--primary); color: var(--white); }

/* === 页脚 === */
.main-footer { margin-top: auto; }
.footer-main { background: #1a2332; padding: 60px 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo .logo-name { color: var(--primary-light); }
.footer-logo .logo-sub { color: rgba(255,255,255,0.5); }
.footer-intro { font-size: 0.85rem; color: rgba(255,255,255,0.55); line-height: 1.8; margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { width: 34px; height: 34px; background: rgba(255,255,255,0.08); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.6); transition: var(--transition); font-size: 0.9rem; }
.footer-social a:hover { background: var(--primary); color: var(--white); }
.footer-col h4 { color: var(--white); font-size: 0.95rem; font-weight: 700; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: rgba(255,255,255,0.55); font-size: 0.85rem; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-contact-list li { color: rgba(255,255,255,0.55); font-size: 0.85rem; margin-bottom: 10px; display: flex; gap: 8px; align-items: flex-start; }
.footer-contact-list li i { color: var(--primary-light); margin-top: 3px; flex-shrink: 0; }
.footer-bottom { background: #111d2c; padding: 14px 0; text-align: center; }
.footer-bottom p { color: rgba(255,255,255,0.35); font-size: 0.8rem; }
.footer-bottom .icp-link { color: rgba(255,255,255,0.35); text-decoration: none; transition: color .2s; }
.footer-bottom .icp-link:hover { color: rgba(255,255,255,0.75); text-decoration: none; }

/* === 工具类 === */
.text-primary { color: var(--primary) !important; }
.text-muted { color: var(--text-secondary) !important; }
.text-center { text-align: center; }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mb-0 { margin-bottom: 0; }
.hidden { display: none !important; }

/* === 提示框 === */
.alert { padding: 12px 18px; border-radius: var(--radius); font-size: 0.88rem; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.alert-success { background: #e8f5e9; color: #2e7d32; border: 1px solid #a5d6a7; }
.alert-error { background: #ffebee; color: #c62828; border: 1px solid #ef9a9a; }
.alert i { font-size: 1.1rem; }

/* === 页面横幅（小）=== */
.page-banner-mini { background: linear-gradient(135deg, #004d40, #00796b); padding: 42px 0; color: var(--white); }
.page-banner-mini h1 { font-size: 1.7rem; font-weight: 700; }

/* =============================================
   Apple 风格产品列表
   ============================================= */

/* -- 分类筛选条 -- */
.apple-filter-bar { background: #fff; border-bottom: 1px solid #e8e8ed; position: sticky; top: 72px; z-index: 99; padding: 0; }
.apple-filter-bar .container { display: flex; align-items: center; justify-content: space-between; }
.apple-filter-tabs { display: flex; gap: 0; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
.apple-filter-tabs::-webkit-scrollbar { display: none; }
.apple-filter-tab { display: inline-block; padding: 14px 20px; font-size: .88rem; color: #6c757d; text-decoration: none; white-space: nowrap; border-bottom: 2px solid transparent; transition: all .2s; font-weight: 500; }
.apple-filter-tab:hover { color: var(--primary); }
.apple-filter-tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.apple-filter-count { font-size: .82rem; color: #adb5bd; white-space: nowrap; padding-left: 24px; }

/* -- 产品列表容器 -- */
.apple-products-section { padding: 48px 0 80px; background: #f5f5f7; }
.apple-empty { text-align: center; padding: 80px 0; }
.apple-empty-icon { margin-bottom: 20px; opacity: .3; }
.apple-empty p { color: #adb5bd; font-size: .95rem; }

/* -- 单个产品项 -- */
.apple-product-list { display: flex; flex-direction: column; gap: 0; }
.apple-product-item { background: #fff; border-radius: 0; overflow: hidden; transition: all .3s ease; }
.apple-product-item:first-child { border-radius: 20px 20px 0 0; }
.apple-product-item:last-child { border-radius: 0 0 20px 20px; }
.apple-product-item:only-child { border-radius: 20px; }
.apple-product-list .apple-product-item + .apple-product-item { border-top: 1px solid #f0f0f0; }

/* -- 产品头部（可点击） -- */
.apple-product-header {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 0;
    cursor: pointer;
    user-select: none;
    transition: background .2s;
}
.apple-product-header:hover { background: #fafafa; }

/* -- 产品图片区 -- */
.apple-product-visual {
    position: relative;
    aspect-ratio: 1;
    background: linear-gradient(135deg, #f9fafb 0%, #f0f4f3 100%);
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
    border-right: 1px solid #f0f0f0;
}
.apple-product-visual img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform .6s ease;
}
.apple-product-item:hover .apple-product-visual img { transform: scale(1.04); }
.apple-no-img {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #e8f5f3, #f0faf8);
}
.apple-badge {
    position: absolute; top: 12px; left: 12px;
    background: var(--primary); color: #fff;
    font-size: .7rem; font-weight: 600;
    padding: 3px 10px; border-radius: 12px;
    letter-spacing: .03em;
}

/* -- 产品文字区 -- */
.apple-product-meta {
    padding: 32px 40px;
    display: flex; flex-direction: column; justify-content: center;
}
.apple-cat-label {
    display: inline-block; font-size: .72rem; font-weight: 600;
    color: var(--primary); text-transform: uppercase;
    letter-spacing: .08em; margin-bottom: 8px;
}
.apple-product-name {
    font-size: 1.5rem; font-weight: 700; color: #1d1d1f;
    margin-bottom: 6px; line-height: 1.3;
}
.apple-product-model {
    font-size: .82rem; color: #86868b;
    font-family: 'SF Mono','Consolas','Monaco',monospace;
    display: block; margin-bottom: 12px;
}
.apple-product-summary {
    font-size: .92rem; color: #6e6e73; line-height: 1.7;
    max-width: 520px; margin-bottom: 14px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden;
}

/* -- 特点小标签 -- */
.apple-feature-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.apple-feature-chips span {
    display: inline-block; padding: 3px 10px;
    background: #f5f5f7; color: #6e6e73;
    font-size: .76rem; border-radius: 6px;
}
.apple-more-chip { color: var(--primary) !important; font-weight: 600; }

/* -- 展开提示 -- */
.apple-expand-hint {
    display: flex; align-items: center; gap: 6px;
    font-size: .82rem; color: var(--primary); font-weight: 500;
    margin-top: auto;
}
.apple-chevron { transition: transform .35s ease; }
.apple-product-item.open .apple-chevron { transform: rotate(180deg); }

/* -- 展开面板 -- */
.apple-product-detail-panel {
    max-height: 0; overflow: hidden;
    transition: max-height .45s ease, padding .35s ease;
    border-top: 0 solid #f0f0f0;
}
.apple-product-item.open .apple-product-detail-panel {
    max-height: 2000px;
    border-top-width: 1px;
}
.apple-detail-inner {
    padding: 0 40px 40px;
    opacity: 0; transform: translateY(-8px);
    transition: opacity .35s ease .05s, transform .35s ease .05s;
}
.apple-product-item.open .apple-detail-inner {
    opacity: 1; transform: translateY(0);
}

/* -- 展开区内：图库 -- */
.apple-gallery {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px; margin-bottom: 32px; padding-top: 28px;
}
.apple-gallery-item {
    aspect-ratio: 1;
    border-radius: 12px; overflow: hidden;
    background: #f5f5f7;
}
.apple-gallery-item img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform .4s ease;
}
.apple-gallery-item:hover img { transform: scale(1.06); }

/* -- 展开区内：规格表 -- */
.apple-section-label {
    font-size: .82rem; font-weight: 600; color: #86868b;
    text-transform: uppercase; letter-spacing: .06em;
    margin-bottom: 12px;
}
.apple-specs-section { margin-bottom: 28px; }
.apple-specs-table { width: 100%; border-collapse: collapse; }
.apple-specs-table tr { border-bottom: 1px solid #f0f0f0; }
.apple-specs-table tr:last-child { border-bottom: none; }
.apple-specs-table td {
    padding: 10px 16px; font-size: .88rem;
}
.apple-specs-table td:first-child {
    color: #86868b; font-weight: 500;
    width: 140px; white-space: nowrap;
    background: #fafafa;
}
.apple-specs-table td:last-child {
    color: #1d1d1f; font-weight: 500;
}

/* -- 展开区内：特点列表 -- */
.apple-features-full { margin-bottom: 28px; }
.apple-features-list {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 8px; list-style: none; padding: 0;
}
.apple-features-list li {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 8px 0; font-size: .88rem; color: #1d1d1f;
}

/* -- 展开区内：操作按钮 -- */
.apple-detail-actions { display: flex; gap: 12px; padding-top: 20px; border-top: 1px solid #f0f0f0; }
.apple-btn-primary {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 11px 24px; background: var(--primary); color: #fff;
    border-radius: 24px; font-size: .88rem; font-weight: 600;
    text-decoration: none; transition: all .2s;
}
.apple-btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,150,136,.3); }
.apple-btn-secondary {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 11px 24px; background: #f5f5f7; color: #1d1d1f;
    border-radius: 24px; font-size: .88rem; font-weight: 500;
    text-decoration: none; transition: all .2s;
}
.apple-btn-secondary:hover { background: #e8e8ed; color: #1d1d1f; }

/* =============================================
   Apple 风格产品详情页
   ============================================= */
.apple-detail-page { padding: 50px 0 80px; background: #fff; }

/* -- Hero区域 -- */
.apple-detail-hero {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 60px; align-items: start; margin-bottom: 60px;
}

/* -- 图库 -- */
.apple-detail-gallery {
    position: sticky; top: 100px;
}
.apple-main-image {
    aspect-ratio: 1; border-radius: 24px; overflow: hidden;
    background: #f5f5f7; display: flex; align-items: center; justify-content: center;
}
.apple-main-image img {
    width: 100%; height: 100%; object-fit: cover;
    transition: opacity .3s;
}
.apple-detail-no-img {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #e8f5f3, #f0faf8);
}
/* 缩略图条 */
.apple-thumb-strip {
    display: flex; gap: 10px; margin-bottom: 16px;
}
.apple-thumb {
    width: 64px; height: 64px; border-radius: 10px;
    overflow: hidden; cursor: pointer; border: 2px solid transparent;
    transition: all .2s; flex-shrink: 0;
}
.apple-thumb img { width: 100%; height: 100%; object-fit: cover; }
.apple-thumb:hover { border-color: #b2dfdb; }
.apple-thumb.active { border-color: var(--primary); }

/* -- 产品信息 -- */
.apple-detail-info { padding-top: 10px; }
.apple-detail-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.apple-featured-tag {
    display: inline-block; padding: 3px 12px;
    background: #ff6f00; color: #fff; font-size: .72rem;
    font-weight: 600; border-radius: 12px;
}
.apple-detail-title {
    font-size: 2.2rem; font-weight: 800; color: #1d1d1f;
    line-height: 1.15; margin-bottom: 8px; letter-spacing: -.02em;
}
.apple-detail-alt-name {
    font-size: .9rem; color: #86868b; margin-bottom: 16px;
}
.apple-detail-summary {
    font-size: 1.05rem; color: #6e6e73;
    line-height: 1.7; margin-bottom: 24px;
}
.apple-industry-links {
    padding: 14px 18px; background: #f5f5f7;
    border-radius: 12px; margin-bottom: 24px;
    display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
}
.apple-industry-label { font-size: .82rem; color: #86868b; }
.apple-industry-links a {
    display: inline-block; padding: 4px 14px;
    background: #fff; color: var(--primary);
    border-radius: 16px; font-size: .8rem; font-weight: 500;
    text-decoration: none; border: 1px solid #e0e0e0;
    transition: all .2s;
}
.apple-industry-links a:hover {
    background: var(--primary); color: #fff; border-color: var(--primary);
}
.apple-detail-cta { display: flex; gap: 12px; }

/* -- Apple 区块 -- */
.apple-section {
    margin-bottom: 56px;
    padding-top: 50px; border-top: 1px solid #e8e8ed;
}
.apple-section-title {
    font-size: 1.5rem; font-weight: 700; color: #1d1d1f;
    margin-bottom: 24px;
}
.apple-specs-card {
    background: #fff; border-radius: 16px;
    border: 1px solid #e8e8ed; overflow: hidden;
}
.apple-specs-large td {
    padding: 14px 24px; font-size: .92rem;
}
.apple-specs-large td:first-child { background: #fafafa; width: 160px; }
.apple-specs-large td:first-child span { color: #86868b; font-weight: 500; }
.apple-specs-large td:last-child { color: #1d1d1f; font-weight: 500; }

/* 大规格数据表 */
.apple-specs-scroll { overflow-x: auto; padding: 20px; }
.apple-specs-data-table {
    width: 100%; border-collapse: separate; border-spacing: 0;
    font-size: .88rem; min-width: 400px;
}
.apple-specs-data-table thead th {
    background: var(--primary-pale); color: var(--primary-dark);
    padding: 12px 20px; text-align: center; font-weight: 700;
    font-size: .85rem; letter-spacing: .03em;
    border-bottom: 2px solid var(--primary);
}
.apple-specs-data-table thead th:first-child { border-radius: 8px 0 0 0; }
.apple-specs-data-table thead th:last-child { border-radius: 0 8px 0 0; }
.apple-specs-data-table tbody td {
    padding: 10px 20px; text-align: center;
    border-bottom: 1px solid #f0f0f0;
    color: #6e6e73; font-size: .86rem;
    font-family: 'SF Mono','Consolas','Monaco',monospace;
}
.apple-specs-data-table tbody td:first-child {
    font-weight: 700; font-family: inherit;
    color: var(--primary-dark) !important;
}
.apple-specs-data-table tbody tr:hover { background: #f0faf7; }
.apple-specs-data-table tbody tr:last-child td { border-bottom: none; }

/* 特点网格 */
.apple-features-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 12px;
}
.apple-feature-card {
    display: flex; align-items: center; gap: 12px;
    padding: 16px 20px; background: #f5f5f7;
    border-radius: 12px; font-size: .9rem; color: #1d1d1f;
    transition: transform .2s;
}
.apple-feature-card:hover { transform: translateY(-2px); }

/* 描述 */
.apple-description {
    line-height: 1.9; color: #6e6e73; font-size: .95rem;
}
.apple-description p { margin-bottom: 16px; }

/* 相关产品 */
.apple-related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.apple-related-card {
    background: #fff; border-radius: 16px;
    border: 1px solid #e8e8ed; overflow: hidden;
    text-decoration: none; transition: all .3s;
}
.apple-related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,.08);
}
.apple-related-img {
    height: 180px; background: #f5f5f7;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.apple-related-img img { width: 100%; height: 100%; object-fit: cover; }
.apple-no-img-sm { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
.apple-related-info { padding: 16px; }
.apple-related-cat {
    font-size: .7rem; color: var(--primary); font-weight: 600;
    text-transform: uppercase; letter-spacing: .06em;
    display: block; margin-bottom: 4px;
}
.apple-related-info h3 {
    font-size: .88rem; font-weight: 600; color: #1d1d1f;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden;
}

/* -- 比较表特殊样式 -- */
.spec-compare tbody td {
    text-align: left; vertical-align: top;
    font-family: inherit; padding: 14px 20px;
    font-size: .88rem; line-height: 1.7;
}
.spec-compare tbody td:first-child {
    color: var(--primary) !important; font-weight: 700 !important; width: 22%;
}

/* =============================================
   响应式
   ============================================= */
@media (max-width: 1024px) {
    .apple-product-header { grid-template-columns: 220px 1fr; }
    .apple-product-meta { padding: 24px; }
    .apple-product-name { font-size: 1.25rem; }
    .apple-detail-hero { grid-template-columns: 1fr; gap: 30px; }
    .apple-detail-gallery { position: static; }
    .apple-detail-title { font-size: 1.7rem; }
}
@media (max-width: 768px) {
    .apple-filter-tabs { gap: 0; }
    .apple-filter-tab { padding: 12px 14px; font-size: .8rem; }
    .apple-filter-count { display: none; }
    .apple-product-header { grid-template-columns: 1fr; }
    .apple-product-visual { aspect-ratio: 16/9; border-right: none; border-bottom: 1px solid #f0f0f0; }
    .apple-product-meta { padding: 20px; }
    .apple-product-name { font-size: 1.15rem; }
    .apple-detail-inner { padding: 0 20px 24px; }
    .apple-detail-hero { gap: 24px; }
    .apple-detail-title { font-size: 1.4rem; }
    .apple-detail-info { padding-top: 0; }
    .apple-gallery { grid-template-columns: repeat(2, 1fr); }
    .apple-section { margin-bottom: 36px; padding-top: 32px; }
    .apple-features-grid { grid-template-columns: 1fr; }
    .apple-related-grid { grid-template-columns: repeat(2, 1fr); }
    .apple-specs-table td:first-child { width: 100px; }
}
@media (max-width: 480px) {
    .apple-products-section { padding: 24px 0 50px; }
    .apple-product-header { grid-template-columns: 1fr; }
    .apple-product-visual { aspect-ratio: 4/3; }
    .apple-gallery { grid-template-columns: 1fr 1fr; gap: 10px; }
    .apple-features-grid { grid-template-columns: 1fr; }
    .apple-related-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .apple-detail-cta { flex-direction: column; }
    .apple-detail-actions { flex-direction: column; }
    .apple-btn-primary, .apple-btn-secondary { justify-content: center; text-align: center; }
}

/* === 微信弹窗 === */
.wechat-modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.55); z-index: 9999;
    display: none; align-items: center; justify-content: center;
}
.wechat-modal-overlay.open { display: flex; }
.wechat-modal {
    background: #fff; border-radius: 16px; padding: 36px 32px 28px;
    max-width: 340px; width: 90%; text-align: center;
    position: relative; box-shadow: 0 20px 60px rgba(0,0,0,0.25);
    animation: wechatModalIn .3s ease;
}
@keyframes wechatModalIn {
    from { opacity: 0; transform: scale(0.85) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}
.wechat-modal-close {
    position: absolute; top: 10px; right: 14px;
    background: none; border: none; font-size: 1.6rem; color: #adb5bd;
    cursor: pointer; line-height: 1; transition: .15s;
}
.wechat-modal-close:hover { color: #333; }
.wechat-modal-title {
    font-size: 1.05rem; font-weight: 700; color: var(--primary);
    margin-bottom: 20px;
}
.wechat-modal-qr-wrap {
    width: 180px; height: 180px; margin: 0 auto 16px;
    border: 1px solid #e9ecef; border-radius: 8px;
    overflow: hidden; display: flex; align-items: center; justify-content: center;
    background: #fafafa;
}
.wechat-modal-qr { width: 160px; height: 160px; object-fit: contain; }
.wechat-modal-id {
    font-size: .82rem; color: var(--text-secondary);
    margin-bottom: 8px; user-select: all;
}
.wechat-modal-tip {
    font-size: .78rem; color: #adb5bd;
}

/* === 响应式 === */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .product-detail-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .topbar { display: none; }
    .main-nav { position: fixed; top: 72px; left: 0; right: 0; background: var(--white); padding: 20px; box-shadow: var(--shadow-lg); transform: translateY(-100%); opacity: 0; visibility: hidden; transition: var(--transition); max-height: calc(100vh - 72px); overflow-y: auto; }
    .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
    .main-nav > ul { flex-direction: column; gap: 0; }
    .main-nav > ul > li > a { border-radius: 4px; }
    .dropdown { position: static; transform: none; box-shadow: none; border: none; background: var(--bg-light); border-radius: 4px; margin: 4px 0; opacity: 1; visibility: visible; pointer-events: all; }
    .has-dropdown:hover .dropdown { transform: none; }
    .nav-toggle { display: flex; }
    .hero { min-height: 480px; }
    .hero h1 { font-size: 1.7rem; }
    .hero-stats { grid-template-columns: repeat(3, 1fr); }
    .section { padding: 50px 0; }
    .section-header h2 { font-size: 1.5rem; }
    .product-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
    .case-grid { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .about-stats { grid-template-columns: 1fr 1fr; }
    .hero-deco { display: none; }
}
@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero-buttons { flex-direction: column; }
    .hero-stats { grid-template-columns: 1fr; }
    .hero-stat { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.1); }
    .industry-grid { grid-template-columns: 1fr 1fr; }
}

/* ===========================================================
   产品详情页（绿色品牌头 + 产品概述列表 + 规格表 + CTA）
   =========================================================== */
.prod-hero {
    position: relative;
    overflow: hidden;
}
.prod-hero::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(255,255,255,.12), transparent 50%),
                radial-gradient(circle at 20% 80%, rgba(255,255,255,.08), transparent 50%);
    pointer-events: none;
}
.prod-hero .container { position: relative; z-index: 1; }

.prod-overview-section .container > div[style*="background:#f7f9fa"] {
    transition: all .3s;
}

@media (max-width: 768px) {
    .prod-hero { padding: 44px 0 38px !important; }
    .prod-hero h1 { font-size: 1.85rem !important; }
    .prod-hero > .container > p { font-size: .95rem !important; }

    /* 产品概述列表 - 移动端上下排列 */
    .prod-overview-section > .container > div[style*="background:#f7f9fa"] > div[style*="display:flex"] {
        flex-direction: column !important;
        gap: 16px !important;
        padding: 18px 0 !important;
    }
    .prod-overview-section > .container > div[style*="background:#f7f9fa"] > div[style*="display:flex"] > div[style*="flex:0 0 220px"] {
        flex: 0 0 auto !important;
        width: 160px !important;
        height: 160px !important;
        margin: 0 auto;
    }

    .prod-specs-section > .container > table,
    .prod-specs-section > .container > div[style*="overflow-x:auto"] table {
        font-size: .84rem;
    }
    .prod-specs-section > .container > div[style*="overflow-x:auto"] table th,
    .prod-specs-section > .container > div[style*="overflow-x:auto"] table td {
        padding: 9px 10px !important;
    }
}

@media (max-width: 480px) {
    .prod-hero h1 { font-size: 1.5rem !important; }
    .prod-hero > .container > div[style*="display:inline-block"] {
        padding: 6px 14px !important;
        font-size: .82rem !important;
    }
    .prod-overview-section > .container > div[style*="background:#f7f9fa"] {
        padding: 24px 18px !important;
    }
    .prod-overview-section > .container > div[style*="background:#f7f9fa"] > div[style*="display:flex"] > div[style*="flex:0 0 220px"] {
        width: 140px !important;
        height: 140px !important;
    }
    .prod-cta-section { padding: 40px 0 !important; }
    .prod-cta-section h2 { font-size: 1.35rem !important; }
}