/* === Base Reset & Variables（参照 motistech 风格，层次分明）=== */
:root {
    /* LOGO 原始色 */
    --logo-blue: #0A46A0;
    --logo-red: #F51F1F;
    /* 主色/强调（Logo 蓝，用于按钮、链接、点缀） */
    --primary: #0A46A0;
    --primary-light: #245DB2;
    --primary-bright: #1A5FC9;
    --primary-dark: #051D4D;
    --primary-gradient: linear-gradient(135deg, #051D4D 0%, #0A46A0 60%, #1A5FC9 100%);
    --accent: #0A46A0;
    --accent-hover: #245DB2;
    --accent-red: #F51F1F;
    /* 文字色 */
    --text: #1C3254;
    --text-secondary: #536C93;
    --text-muted: #93A4BE;
    --text-heading: #0F1A2E;
    /* 背景色 */
    --bg: #FFFFFF;
    --bg-light: #F7F8FA;
    --bg-soft: #EDF0F5;
    --bg-highlight: #E6ECF4;
    --bg-dark: #051D4D;
    /* 边框与分割线 */
    --border: #CCD4E0;
    --border-medium: #93A4BE;
    --border-strong: #0A46A0;
    /* 表格 */
    --table-header-bg: #EDF0F5;
    --table-stripe: #F7F8FA;
    /* 通用（圆角略增，卡片阴影更柔和）*/
    --radius: 8px;
    --radius-card: 10px;
    --shadow: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 32px rgba(10,70,160,0.12);
    --transition: 0.3s ease;
    --header-height: 72px;
    --max-width: 1200px;
    /* 兼容旧类名 */
    --text-light: var(--text-secondary);
    --heading: var(--text-heading);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

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

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

.text-center { text-align: center; }
.mt-4 { margin-top: 2rem; }

/* === Header === */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    height: var(--header-height);
    overflow: visible;
    transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.site-header.header-hidden {
    transform: translateY(-100%);
}

.site-header.scrolled {
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 24px;
    overflow: visible;
}

.logo {
    flex-shrink: 0;
}
.logo img { height: 40px; width: auto; display: block; }
.logo-text { font-size: 1.5rem; font-weight: 700; color: var(--primary); }

.main-nav { overflow: visible; }
.nav-list {
    display: flex;
    list-style: none;
    gap: 4px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
}
.nav-item.nav-search { margin-left: 12px; }

.nav-item > a {
    display: block;
    padding: 10px 18px;
    color: var(--text);
    font-weight: 500;
    font-size: 0.9375rem;
    border-radius: var(--radius);
    transition: color var(--transition), background var(--transition), border-color var(--transition);
    border: 1px solid transparent;
}
.nav-item > a:hover,
.nav-item:hover > a {
    color: var(--accent);
    background: var(--bg-light);
    border-color: var(--border);
}

/* 下拉触发项：小箭头 */
.nav-item.has-dropdown > a::after {
    content: '';
    display: inline-block;
    margin-left: 6px;
    vertical-align: 0.2em;
    border: solid currentColor;
    border-width: 0 1.5px 1.5px 0;
    width: 5px;
    height: 5px;
    transform: rotate(45deg);
    transition: transform var(--transition);
}
.nav-item.has-dropdown:hover > a::after {
    transform: rotate(-135deg);
}

.nav-item.has-dropdown { position: relative; overflow: visible; }

/* 下拉紧贴触发项，避免 margin 造成空隙导致鼠标移入时丢失 hover */
.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 0;
    min-width: 320px;
    width: max-content;
    white-space: nowrap;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 12px 32px rgba(10,70,160,0.12), 0 2px 8px rgba(0,0,0,0.06);
    padding: 8px 0;
    list-style: none;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    pointer-events: none;
}
.nav-item.has-dropdown:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.dropdown li { margin: 0; }
.dropdown li:first-child a { border-radius: var(--radius) var(--radius) 0 0; }
.dropdown li:last-child a { border-radius: 0 0 var(--radius) var(--radius); }
.dropdown li {
    white-space: nowrap;
}
.dropdown li a {
    display: block;
    padding: 12px 20px;
    color: var(--text);
    font-size: 0.9rem;
    white-space: nowrap !important;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
    border-left: 3px solid transparent;
    margin: 0 4px;
    border-radius: 4px;
}
.dropdown li a:hover {
    background: var(--bg-light);
    color: var(--accent);
    border-left-color: var(--accent);
}

/* 搜索入口：胶囊样式 */
.nav-item.nav-search a {
    border: 1px solid var(--border);
    padding: 8px 16px;
    font-size: 0.9rem;
}
.nav-item.nav-search a:hover {
    border-color: var(--accent);
    background: var(--bg-light);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    border-radius: var(--radius);
    transition: background var(--transition);
}
.mobile-toggle:hover { background: var(--bg-light); }
.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: transform 0.25s ease, opacity 0.25s ease;
    transition: all var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}
.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* === Site Main === */
.site-main { margin-top: var(--header-height); }

/* === Hero Section === */

.hero-slide {
    position: relative;
    height: 70vh;
    min-height: 500px;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
    background-color: var(--primary-dark);
}

.hero-default { background: linear-gradient(135deg, var(--primary), var(--primary-bright)); }

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,70,160,0.85), rgba(71,126,209,0.6));
}

.hero-content {
    position: relative;
    z-index: 2;
    color: #fff;
    max-width: 700px;
}

.hero-content h1 { font-size: 3rem; font-weight: 800; line-height: 1.2; margin-bottom: 1rem; }
.hero-content p { font-size: 1.2rem; margin-bottom: 2rem; opacity: 0.9; }

.hero-swiper { height: 70vh; min-height: 500px; }
.hero-swiper .swiper-button-next, .hero-swiper .swiper-button-prev { color: #fff; }
.hero-swiper .swiper-pagination-bullet { background: #fff; }
.hero-swiper .swiper-pagination-bullet-active { background: var(--logo-blue); }

/* 品牌首屏 */
.hero-section.hero-brand-cover {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-bright) 100%);
    background-size: cover;
    background-position: center;
    padding: 4rem 0;
}
.hero-overlay-dark {
    background: linear-gradient(135deg, rgba(6,45,107,0.92), rgba(10,70,160,0.88));
}
.hero-content-tiered {
    max-width: 900px;
}
.hero-content-tiered .hero-tagline {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 0.75rem;
}
.hero-content-tiered .hero-subtitle {
    font-size: 1.1rem;
    opacity: 0.95;
    margin-bottom: 1.5rem;
}
.hero-cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.hero-cta-group .btn-light { color: rgba(255,255,255,0.95); border-color: rgba(255,255,255,0.7); }
.hero-cta-group .btn-light:hover { background: rgba(255,255,255,0.15); color: #fff; }
.hero-standards-tags, .hero-trust-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    font-size: 0.9rem;
    opacity: 0.9;
}
.hero-standards-tags span, .hero-trust-bar span {
    padding: 0.25rem 0.6rem;
    background: rgba(255,255,255,0.12);
    border-radius: 4px;
}
.hero-trust-bar { margin-bottom: 0.75rem; }
.hero-differentiator {
    font-size: 0.95rem;
    opacity: 0.85;
    max-width: 640px;
}
.hero-quick-products { padding: 3rem 0; }
.hero-quick-products .section-title { margin-bottom: 1.5rem; }
.product-grid-compact { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; }
.product-card-compact .product-info h3 { font-size: 0.95rem; }
.product-card-compact .product-compliance { font-size: 0.8rem; }
.hero-carousel-section { margin-top: 0; }
.hero-swiper-compact { height: 42vh; min-height: 320px; }

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition);
    text-align: center;
}

.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; transform: translateY(-2px) scale(1.02); box-shadow: 0 6px 20px rgba(10,70,160,0.35); }
.btn-primary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.btn-secondary { background: var(--bg-light); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { background: var(--border); color: var(--primary); transform: translateY(-1px); }
.btn-secondary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.btn-outline { background: transparent; color: var(--accent); border: 1.5px solid var(--accent); }
.btn-outline:hover { background: var(--accent); color: #fff; transform: translateY(-2px); border-color: var(--accent); }
.btn-outline:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.btn-block { display: block; width: 100%; }

/* === Sections === */
.section { padding: 96px 0; }

.bg-light { background: var(--bg-light); }

.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-heading);
    letter-spacing: -0.01em;
}

/* === Page Hero === */
.page-hero {
    position: relative;
    padding: 80px 0;
    background: var(--primary-gradient);
    background-size: cover;
    background-position: center;
    color: #fff;
    text-align: center;
    text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

.page-hero-overlay {
    position: absolute;
    inset: 0;
    background: var(--primary-gradient);
    z-index: 1;
    pointer-events: none;
}

.page-hero .container {
    position: relative;
    z-index: 2;
}

.page-hero h1 { font-size: 2.5rem; font-weight: 800; margin-bottom: 0.5rem; letter-spacing: 0.02em; }
.page-hero p { font-size: 1.15rem; opacity: 0.9; max-width: 700px; margin: 0 auto; line-height: 1.8; }

.page-hero-tall { padding: 100px 0; }

/* === Solutions Grid === */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.solution-card {
    background: var(--bg);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

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

.solution-image { height: 200px; overflow: hidden; }
.solution-image img { width: 100%; height: 100%; object-fit: cover; }

.solution-body { padding: 24px; }
.solution-body h3 { font-size: 1.3rem; margin-bottom: 0.75rem; color: var(--primary); }
.solution-body p { color: var(--text-light); margin-bottom: 1rem; }

.solution-products { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 1rem; }
.solution-products a {
    font-size: 0.85rem;
    padding: 4px 12px;
    background: var(--bg-light);
    border-radius: 20px;
    color: var(--text);
    transition: all var(--transition);
}
.solution-products a:hover { background: var(--accent); color: #fff; }
.solution-meta { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.5rem; }

/* 行业覆盖 */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}
.industry-card {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80px;
    padding: 1rem;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-weight: 600;
    color: var(--primary);
    transition: all var(--transition);
}
.industry-card:hover { border-color: var(--accent); background: var(--bg-light); color: var(--accent); }

/* 标准覆盖矩阵 */
.standards-matrix {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}
.std-tag {
    padding: 0.4rem 0.9rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text);
}

/* === Company Section === */
.company-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.company-text h2 { font-size: 2rem; margin-bottom: 1rem; color: var(--primary); }
.company-text p { color: var(--text-light); margin-bottom: 1.5rem; line-height: 1.8; }

.company-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 24px;
    background: var(--bg-light);
    border-radius: var(--radius);
}

.stat-number { display: block; font-size: 2.5rem; font-weight: 800; color: var(--accent); }
.stat-label { font-size: 0.9rem; color: var(--text-light); margin-top: 4px; }

/* === Product Grid === */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 32px;
}

.product-grid-sm { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }

.product-card {
    display: block;
    background: var(--bg);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all var(--transition);
    color: var(--text);
}

.product-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); color: var(--text); }
.product-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.product-image {
    height: 200px;
    overflow: hidden;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }
.product-card:hover .product-image img { transform: scale(1.05); }

.placeholder-img { width: 80px; height: 80px; background: var(--border); border-radius: 50%; }

.product-info { padding: 16px; }
.product-info h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 4px; }
.product-card-title-clamp { font-size: 1.05rem; font-weight: 600; margin-bottom: 4px; line-height: 1.45; min-height: 2.9em; display: block; overflow: visible; }
.product-compliance { font-size: 0.85rem; color: var(--text-light); }

/* 产品列表卡片增强 */
.product-card-list .product-card-image {
    height: 200px;
    overflow: hidden;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
}
.product-card-list .product-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }
.product-card-list:hover .product-card-image img { transform: scale(1.05); }
.product-card-body { padding: 20px; }
.product-card-title { font-size: 1.1rem; font-weight: 700; color: var(--primary); margin-bottom: 0.5rem; }
.product-card-compliance { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.5rem; }
.product-card-summary { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.5; margin-bottom: 0.75rem; }
.product-card-action { font-size: 0.9rem; font-weight: 600; color: var(--accent); }

/* === Category Grid === */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 24px;
}

.category-card {
    display: block;
    background: var(--bg);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all var(--transition);
    color: var(--text);
    text-align: center;
}

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

.category-image { height: 160px; overflow: hidden; background: var(--bg-light); }
.category-image img { width: 100%; height: 100%; object-fit: cover; }

.category-info { padding: 20px; }
.category-info h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 4px; }
.category-info p { font-size: 0.9rem; color: var(--text-light); }

/* === Category Tabs === */
.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.tab-item {
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text);
    background: var(--bg-light);
    transition: all var(--transition);
}

.tab-item:hover, .tab-item.active { background: var(--accent); color: #fff; }

/* === Product Detail === */
.product-detail-section { padding: 40px 0 80px; }

.product-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
    margin-bottom: 40px;
}

.product-header h1 { font-size: 2.2rem; font-weight: 800; color: var(--primary); margin-bottom: 0.5rem; }
.product-model { font-size: 1rem; color: var(--text-muted); margin-bottom: 0.75rem; font-weight: 500; }

.product-lead { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 1rem; line-height: 1.6; }
.compliance-badge {
    padding: 12px 20px;
    background: var(--bg-highlight);
    border-radius: var(--radius);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary);
}

.product-summary-block { background: var(--bg-light); padding: 1.5rem; border-radius: var(--radius); margin-bottom: 2rem; }
.product-summary-title { font-size: 1.1rem; margin-bottom: 1rem; color: var(--primary); }
.product-summary-dl { display: grid; gap: 0.5rem 1.5rem; }
.product-summary-dl dt { font-weight: 600; color: var(--text); }
.product-summary-dl dd { margin: 0; color: var(--text-secondary); }
.product-standards-text { color: var(--text-secondary); line-height: 1.6; }
.text-muted { color: var(--text-muted); font-size: 0.95rem; }

.product-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.product-hero-image {
    min-height: 280px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--bg-light);
}
.product-hero-image img { width: 100%; height: auto; display: block; vertical-align: top; }
.product-hero-placeholder {
    min-height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.95rem;
    background: var(--bg-light);
}

.product-section {
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border);
}

.product-section:last-child { border-bottom: none; }

/* 区块标题：与富文本内 h2 风格统一 */
.product-section > h2 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary);
    letter-spacing: 0.02em;
    scroll-margin-top: calc(var(--header-height) + 20px);
}

/* === Rich Content（产品描述等富文本：标题 / 正文 / 列表统一样式）=== */
.rich-content {
    line-height: 1.85;
    color: var(--text);
    font-size: 1rem;
    max-width: 72ch;
}

/* 一级标题（如：产品概述）*/
.rich-content h2 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-heading);
    margin: 2.25rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary);
    letter-spacing: 0.02em;
    scroll-margin-top: calc(var(--header-height) + 20px);
}
.rich-content h2:first-child { margin-top: 0; }

/* 二级标题（如：主要功能与特点、技术参数、应用领域、标准要点）*/
.rich-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-heading);
    margin: 1.75rem 0 0.6rem;
    padding-left: 0.75rem;
    border-left: 3px solid var(--primary);
    letter-spacing: 0.01em;
    scroll-margin-top: calc(var(--header-height) + 20px);
}
.rich-content h3:first-of-type { margin-top: 1.5rem; }

.rich-content h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin: 1.25rem 0 0.5rem;
    color: var(--text);
    letter-spacing: 0.01em;
}

/* 正文段落 */
.rich-content p {
    margin-bottom: 1rem;
    color: var(--text);
}
.rich-content p:last-child { margin-bottom: 0; }

/* 列表：统一缩进与项目符号 */
.rich-content ul,
.rich-content ol {
    margin: 0.75rem 0 1rem;
    padding-left: 1.75rem;
}
.rich-content ul { list-style-type: disc; }
.rich-content ul::marker { color: var(--primary); }
.rich-content li {
    margin-bottom: 0.5rem;
    padding-left: 0.35rem;
    line-height: 1.75;
}
.rich-content li:last-child { margin-bottom: 0; }
.rich-content ol { list-style-type: decimal; }
.rich-content ol li { list-style-position: outside; }
.rich-content img { max-width: 100%; height: auto; border-radius: var(--radius); margin: 1.5rem 0; }
.rich-content figure { margin: 2rem 0; text-align: center; }
.rich-content figure img { margin: 0 auto; display: block; }
.rich-content figcaption { font-size: 0.85rem; color: var(--text-secondary); margin-top: 0.6em; font-style: italic; }
.rich-content table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.95rem; overflow-x: auto; display: block; }
.rich-content th, .rich-content td { padding: 12px 16px; border: 1px solid var(--border-medium); text-align: left; vertical-align: top; }
.rich-content th { background: var(--table-header-bg); font-weight: 600; white-space: nowrap; color: var(--text); }
.rich-content tbody tr:nth-child(even) td { background: var(--table-stripe); }
.rich-content tr:hover td { background: var(--bg-highlight); }
.rich-content blockquote {
    border-left: 4px solid var(--primary); margin: 1.5rem 0; padding: 1em 1.5em;
    background: var(--bg-highlight); color: var(--text-secondary); border-radius: 0 var(--radius) var(--radius) 0;
}
.rich-content blockquote p:last-child { margin-bottom: 0; }
.rich-content hr { border: none; border-top: 2px solid var(--border); margin: 2.5rem 0; }
.rich-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }
.rich-content a:hover { color: var(--accent-hover); }

a.auto-link {
    color: var(--primary);
    border-bottom: 1px dashed var(--primary);
    text-decoration: none;
}
a.auto-link:hover {
    border-bottom-style: solid;
}
.rich-content mark { background: #fef08a; padding: 0.1em 0.3em; border-radius: 3px; }
.rich-content code { background: var(--bg-light); padding: 0.15em 0.4em; border-radius: 4px; font-size: 0.9em; color: var(--accent-red); }
.rich-content kbd { background: var(--bg-light); border: 1px solid var(--border); border-radius: 4px; padding: 0.1em 0.4em; font-size: 0.85em; box-shadow: 0 1px 0 var(--border); }
.rich-content pre { background: #1e293b; color: #e2e8f0; padding: 1.2em 1.5em; border-radius: var(--radius); overflow-x: auto; margin: 1.5rem 0; font-size: 0.9rem; line-height: 1.6; }
.rich-content pre code { background: none; color: inherit; padding: 0; }
.rich-content .info-box { background: var(--bg-highlight); border-left: 4px solid var(--primary); border-radius: var(--radius); padding: 1em 1.5em; margin: 1.5rem 0; }
.rich-content .warn-box { background: #fffbeb; border: 1px solid #fde68a; border-radius: var(--radius); padding: 1em 1.5em; margin: 1.5rem 0; }
.rich-content .cta-block { background: var(--primary); color: #fff; border-radius: var(--radius); padding: 2em; text-align: center; margin: 2rem 0; }
.rich-content .cta-block a { color: #fff; background: rgba(255,255,255,0.2); padding: 0.6em 2em; border-radius: 6px; text-decoration: none; display: inline-block; margin-top: 0.5em; transition: all var(--transition); }
.rich-content .cta-block a:hover { background: rgba(255,255,255,0.35); }
/* Rich content layout helpers */
.rich-content .flex-row { display: flex; gap: 1.5rem; flex-wrap: wrap; align-items: flex-start; margin: 1.5rem 0; }
.rich-content .flex-col { display: flex; flex-direction: column; gap: 1rem; margin: 1.5rem 0; }
.rich-content .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; margin: 1.5rem 0; }
.rich-content .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin: 1.5rem 0; }
@media (max-width: 768px) {
    .rich-content .grid-2, .rich-content .grid-3 { grid-template-columns: 1fr; }
}
.rich-content .float-left { float: left; margin: 0 1.5rem 1rem 0; max-width: 50%; }
.rich-content .float-right { float: right; margin: 0 0 1rem 1.5rem; max-width: 50%; }
.rich-content .float-left img, .rich-content .float-right img { margin: 0; display: block; }
.rich-content .text-center { text-align: center; }
.rich-content .text-right { text-align: right; }
.rich-content .mt-1 { margin-top: 0.5rem; }
.rich-content .mt-2 { margin-top: 1rem; }
.rich-content .mt-3 { margin-top: 1.5rem; }
.rich-content .mb-1 { margin-bottom: 0.5rem; }
.rich-content .mb-2 { margin-bottom: 1rem; }
.rich-content .mb-3 { margin-bottom: 1.5rem; }
.rich-content .highlight-block { background: var(--bg-highlight); border-radius: var(--radius); padding: 1em 1.5em; margin: 1.5rem 0; border-left: 4px solid var(--primary); }
.hero-subtitle { font-size: 1.15rem; opacity: 0.9; max-width: 700px; }

/* === Tags === */
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--bg-light);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text);
    transition: all var(--transition);
}
.tag:hover { background: var(--accent); color: #fff; }

/* === Resource List === */
.resource-list { list-style: none; }
.resource-list li { padding: 8px 0; border-bottom: 1px solid var(--border); }
.resource-list li:last-child { border-bottom: none; }
.resource-list a { font-weight: 500; }

/* === Gallery === */
.product-gallery { margin-bottom: 40px; }
.gallery-swiper { border-radius: var(--radius); overflow: hidden; }
.gallery-swiper img { width: 100%; height: 400px; object-fit: contain; background: var(--bg-light); }

/* === Solutions Detail === */
.about-capabilities { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; }
.about-capabilities span { padding: 0.5rem 1rem; background: var(--bg-light); border-radius: var(--radius); font-weight: 500; color: var(--primary); }
.about-support-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; max-width: 800px; margin: 0 auto; }
.about-support-item { padding: 1rem; background: var(--bg); border-radius: var(--radius); font-size: 0.95rem; }
.about-roles { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; }
.about-roles span { padding: 0.4rem 1rem; background: var(--bg-light); border: 1px solid var(--border); border-radius: 20px; font-size: 0.9rem; }

.solution-equipment-block { margin-bottom: 2rem; padding: 1.5rem; background: var(--bg-light); border-radius: var(--radius); }
.solution-equipment-block h2 { font-size: 1.25rem; margin-bottom: 1rem; color: var(--primary); }
.solution-equipment-list { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; }
.solution-equipment-list a { padding: 0.35rem 0.75rem; background: var(--bg); border-radius: 4px; font-size: 0.9rem; }
.solution-equipment-list a:hover { background: var(--primary); color: #fff; }
.solution-faq-block { margin-bottom: 2rem; }
.solution-faq-block h2 { font-size: 1.25rem; margin-bottom: 0.75rem; color: var(--primary); }

/* 下载资料 CTA */
.download-cta-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; }
.download-cta-card {
    display: block;
    padding: 1.25rem;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
}
.download-cta-card:hover { border-color: var(--accent); background: var(--bg-highlight); }
.download-cta-label { display: block; font-weight: 700; color: var(--primary); margin-bottom: 0.35rem; }
.download-cta-desc { font-size: 0.85rem; color: var(--text-secondary); }

.solution-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    align-items: start;
}

.product-section-inline { margin-top: 2rem; }
.product-section-inline:first-child { margin-top: 0; }
.product-section-inline h2 { margin-bottom: 1.25rem; font-size: 1.25rem; }

.solution-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 20px);
}

.sidebar-block {
    background: var(--bg-light);
    border-radius: var(--radius-card);
    border: 1px solid var(--border);
    padding: 24px;
    margin-bottom: 20px;
}

.sidebar-block h3 { font-size: 1.1rem; margin-bottom: 1rem; color: var(--primary); }

/* TOC Navigation */
.toc-nav { display: flex; flex-direction: column; gap: 2px; }
.toc-link {
    display: block; padding: 6px 12px; font-size: 0.85rem; color: var(--text-light);
    border-left: 3px solid transparent; border-radius: 0 4px 4px 0;
    transition: all 0.2s; text-decoration: none;
}
.toc-link:hover { color: var(--primary); background: rgba(30,64,175,0.05); }
.toc-link.active { color: var(--primary); border-left-color: var(--primary); font-weight: 600; background: rgba(30,64,175,0.05); }
.toc-link.toc-sub { padding-left: 24px; font-size: 0.8rem; }

.sidebar-links { list-style: none; }
.sidebar-links li { padding: 8px 0; border-bottom: 1px solid var(--border); }
.sidebar-links li:last-child { border-bottom: none; }
.sidebar-links a { font-size: 0.9rem; display: flex; align-items: center; gap: 10px; }
.sidebar-product-thumb { width: 40px; height: 40px; object-fit: cover; border-radius: 4px; flex-shrink: 0; }
.sidebar-links-wrap a span { min-width: 0; overflow-wrap: break-word; word-break: break-word; }

.cta-block { background: var(--primary-gradient); color: #fff; }
.cta-block h3 { color: #fff; }
.cta-block p { opacity: 0.9; font-size: 0.9rem; }
.cta-block .btn-primary { width: 100%; margin-top: 0.5rem; background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.3); }
.cta-block .btn-primary:hover { background: rgba(255,255,255,0.3); }
.cta-block .btn-outline {
    width: 100%;
    margin-top: 0.5rem;
    color: #fff;
    border: 2px solid rgba(255,255,255,0.85);
    background: transparent;
}
.cta-block .btn-outline:hover {
    background: rgba(255,255,255,0.2);
    border-color: #fff;
    color: #fff;
}
.cta-block .btn-outline:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

/* === Solutions List === */
.solutions-list { display: flex; flex-direction: column; gap: 32px; }

.solution-list-card {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 30px;
    background: var(--bg);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.solution-list-card:hover { box-shadow: var(--shadow-lg); }

.solution-list-card:not(:has(.solution-list-image)) {
    grid-template-columns: 1fr;
    border-left: 4px solid var(--primary);
}

.solution-list-image { height: 100%; min-height: 200px; overflow: hidden; }
.solution-list-image img { width: 100%; height: 100%; object-fit: cover; }

.solution-list-body { padding: 30px; display: flex; flex-direction: column; justify-content: center; }
.solution-list-body h2 { font-size: 1.5rem; margin-bottom: 0.75rem; color: var(--primary); }
.solution-list-body p { color: var(--text-light); margin-bottom: 1rem; }

/* === About Page === */
.about-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }

.about-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

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

.about-icon { font-size: 2.5rem; margin-bottom: 1rem; color: var(--accent); }
.about-card h3 { font-size: 1.2rem; margin-bottom: 0.75rem; }
.about-card p { color: var(--text-light); font-size: 0.95rem; }

/* === Workflow === */
.workflow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.workflow-step {
    text-align: center;
    padding: 24px 16px;
    background: var(--bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--accent);
    color: #fff;
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 12px;
}

.workflow-step p { font-size: 0.9rem; font-weight: 500; }

/* === Services === */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }

.service-card {
    padding: 30px;
    background: var(--bg-light);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.service-card h3 { font-size: 1.2rem; margin-bottom: 1rem; color: var(--primary); }
.service-card ul { list-style: none; }
.service-card li { padding: 6px 0; font-size: 0.95rem; border-bottom: 1px solid var(--border); }
.service-card li:last-child { border-bottom: none; }

/* === Testimonials === */
.testimonials-section { background: var(--bg-light); }

.testimonial-card {
    text-align: center;
    padding: 40px;
    max-width: 700px;
    margin: 0 auto;
}

.quote-icon { font-size: 4rem; color: var(--accent); line-height: 1; margin-bottom: 1rem; }
.quote-text { font-size: 1.15rem; font-style: italic; color: var(--text); line-height: 1.8; margin-bottom: 1.5rem; }
.quote-author strong { color: var(--primary); }
.quote-author span { color: var(--text-light); }

.testimonial-swiper .swiper-pagination { position: relative; margin-top: 20px; }

/* === News === */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 32px;
}

.news-card {
    display: block;
    background: var(--bg);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all var(--transition);
    color: var(--text);
}

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

.news-image { height: 180px; overflow: hidden; }
.news-image img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }
.news-card:hover .news-image img { transform: scale(1.05); }

.news-body { padding: 20px; }
.news-meta { font-size: 0.85rem; color: var(--text-light); display: block; margin-bottom: 8px; }
.news-body h3 { font-size: 1.1rem; margin-bottom: 8px; }
.news-body p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 8px; }
.news-date { font-size: 0.85rem; color: var(--text-light); }
.read-more { font-weight: 600; color: var(--accent); font-size: 0.9rem; }

/* === Article === */
.article-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 40px;
    align-items: start;
}

/* 无侧栏时正文占满容器宽度，避免右侧大片空白 */
.article-layout:not(:has(.article-sidebar)) {
    grid-template-columns: 1fr;
}

.article-cover { border-radius: var(--radius); overflow: hidden; margin-bottom: 2rem; }
.article-cover img { width: 100%; }

.article-meta { font-size: 0.95rem; opacity: 0.8; }

.article-sidebar { position: sticky; top: calc(var(--header-height) + 20px); }

/* === Contact === */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 40px;
    align-items: start;
}

.contact-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form .form-group { margin-bottom: 16px; }
.contact-form label { display: block; font-weight: 500; margin-bottom: 6px; font-size: 0.9rem; }
.contact-form input, .contact-form textarea, .contact-form select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    transition: border-color var(--transition);
}
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus { outline: none; border-color: var(--accent); }
.contact-expect { font-size: 0.95rem; opacity: 0.95; margin-top: 0.5rem; }
.contact-product-prefill { background: var(--bg-highlight); border-left: 4px solid var(--primary); }

.contact-info-card {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 30px;
}

.contact-info-card h3 { font-size: 1.3rem; margin-bottom: 1rem; color: var(--primary); }
.contact-info-card p { margin-bottom: 0.75rem; }

/* === 询价/联系弹窗（非联系页点击询价/联系时在当前页弹出）=== */
.contact-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}
.contact-modal.contact-modal-open {
    opacity: 1;
    visibility: visible;
}
.contact-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    cursor: pointer;
}
.contact-modal-box {
    position: relative;
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--bg);
    border-radius: var(--radius);
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.contact-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
}
.contact-modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--text);
}
.contact-modal-close {
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    background: transparent;
    font-size: 1.5rem;
    line-height: 1;
    color: var(--text-light);
    cursor: pointer;
    border-radius: var(--radius);
    transition: color var(--transition), background var(--transition);
}
.contact-modal-close:hover {
    color: var(--text);
    background: var(--bg-light);
}
.contact-modal-body {
    padding: 1.5rem;
}
.contact-modal-expect {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0 0 1rem;
}
.contact-modal-message {
    margin-bottom: 1rem;
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 0.95rem;
}
.contact-modal-message-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}
.contact-modal-message-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* === Alerts === */
.alert { padding: 14px 20px; border-radius: var(--radius); margin-bottom: 1rem; font-size: 0.95rem; }
.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }

/* === Pagination === */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 3rem;
}

.page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    color: var(--text);
    transition: all var(--transition);
}

.page-link:hover, .page-link.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* === Empty State === */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-light); }

/* === Search === */
.search-form { display: flex; gap: 12px; max-width: 500px; margin: 1.5rem auto 0; }
.search-input { flex: 1; padding: 12px 20px; border: 2px solid var(--border); border-radius: var(--radius); font-size: 1rem; }
.search-input:focus { outline: none; border-color: var(--accent); }

.page-hero .search-input {
    border: 2px solid rgba(255,255,255,0.6);
    background: rgba(255,255,255,0.15);
    color: #fff;
}
.page-hero .search-input::placeholder { color: rgba(255,255,255,0.7); }
.page-hero .search-form .btn-primary {
    background: #fff;
    color: var(--primary);
    border-color: #fff;
}
.page-hero .search-form .btn-primary:hover {
    background: rgba(255,255,255,0.9);
    color: var(--primary);
    border-color: rgba(255,255,255,0.9);
}

/* === Breadcrumb === */
.breadcrumb { padding: 12px 0; background: rgba(0,0,0,0.02); font-size: 0.9rem; }
.breadcrumb-list { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.breadcrumb-item:not(:last-child)::after { content: "›"; margin-left: 6px; color: var(--text-light); }
.breadcrumb-item a { color: var(--text-light); }
.breadcrumb-item a:hover { color: var(--accent); }
.breadcrumb-item span { color: var(--text); font-weight: 500; }

/* === Footer === */
.site-footer {
    background: var(--primary-dark);
    border-top: 4px solid var(--primary);
    color: rgba(255,255,255,0.85);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h3 { color: #fff; font-size: 1.1rem; margin-bottom: 1rem; }
.footer-col p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.85); }
.footer-col.footer-col-about { max-width: 32em; }
.footer-col .footer-about-desc { margin-bottom: 0; }
.footer-col .footer-about-desc p { margin-bottom: 1rem; line-height: 1.8; }
.footer-col .footer-about-desc p:last-child { margin-bottom: 0; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { padding: 0.35em 0; }
.footer-col .footer-links li { padding: 0.4em 0; }
.footer-col a { color: rgba(255,255,255,0.75); transition: color var(--transition); font-size: 0.9rem; }
.footer-col a:hover { color: #fff; }

.footer-social { margin-top: 1rem; display: flex; flex-wrap: wrap; gap: 1rem; font-size: 0.9rem; }
.footer-social a, .footer-social .footer-social-label { color: rgba(255,255,255,0.8); }
.footer-social a:hover { color: #fff; }

.footer-cta {
    text-align: center;
    padding: 1.25rem;
    background: rgba(255,255,255,0.06);
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}
.footer-cta a { color: #fff; text-decoration: underline; font-weight: 600; }
.footer-cta a:hover { opacity: 0.9; }

.footer-recommended {
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}
.footer-recommended a { color: rgba(255,255,255,0.9); text-decoration: none; }
.footer-recommended a:hover { text-decoration: underline; }

.footer-bottom {
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.2);
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
}

.footer-bottom a { color: rgba(255,255,255,0.75); }

/* === Responsive === */
@media (max-width: 1024px) {
    .company-grid { grid-template-columns: 1fr; }
    .company-stats { grid-template-columns: repeat(3, 1fr); }
    .solution-layout { grid-template-columns: 1fr; }
    .article-layout { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .product-header { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .workflow-grid { grid-template-columns: repeat(2, 1fr); }
    .services-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .solution-list-card { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .main-nav { display: none; }
    .main-nav.open {
        display: block;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        box-shadow: 0 12px 32px rgba(0,0,0,0.1);
        padding: 20px 16px 24px;
        animation: navSlideDown 0.25s ease;
    }
    @keyframes navSlideDown {
        from { opacity: 0; transform: translateY(-8px); }
        to { opacity: 1; transform: translateY(0); }
    }
    .main-nav.open .nav-list {
        flex-direction: column;
        gap: 4px;
        align-items: stretch;
    }
    .main-nav.open .nav-item > a {
        min-height: 48px;
        display: flex;
        align-items: center;
        padding: 12px 16px;
        border-radius: var(--radius);
    }
    .main-nav.open .dropdown {
        position: static;
        box-shadow: none;
        border: none;
        padding: 4px 0 4px 16px;
        margin-top: 4px;
        margin-bottom: 4px;
        border-left: 2px solid var(--border);
        opacity: 1;
        visibility: visible;
        transform: none;
        pointer-events: auto;
        display: none;
    }
    .main-nav.open .nav-item.has-dropdown.open .dropdown {
        display: block;
    }
    .main-nav.open .dropdown li a {
        min-height: 44px;
        display: flex;
        align-items: center;
        padding: 10px 16px;
        margin: 0;
        border-left: 3px solid transparent;
        border-radius: 4px;
    }
    .mobile-toggle { display: flex; min-width: 44px; min-height: 44px; align-items: center; justify-content: center; }
    .page-link { min-width: 44px; height: 44px; }
    .tag { min-height: 44px; display: inline-flex; align-items: center; }
    .tab-item { min-height: 44px; display: inline-flex; align-items: center; }

    .hero-content h1 { font-size: 2rem; }
    .hero-slide { min-height: 360px; height: 60vh; }
    .hero-swiper { min-height: 360px; height: 60vh; }
    .home-hero-swiper, .home-hero-slide { min-height: 400px; height: 65vh; }
    .home-hero-static { min-height: 400px; }
    .section { padding: 56px 0; }
    .section-title { font-size: 1.8rem; }
    .page-hero { padding: 40px 0; }
    .page-hero h1 { font-size: 1.8rem; }

    .solutions-grid { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
    .category-grid { grid-template-columns: 1fr 1fr; }
    .news-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .workflow-grid { grid-template-columns: 1fr 1fr; }
    .contact-form .form-row { grid-template-columns: 1fr; }
    .contact-form input, .contact-form textarea, .contact-form select {
        font-size: 16px;
        padding: 14px 16px;
    }
    .company-stats { grid-template-columns: 1fr; }

    .solution-sidebar { position: static; }
    .article-sidebar { position: static; }
}

@media (max-width: 480px) {
    .category-grid { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: 1fr; }
    .workflow-grid { grid-template-columns: 1fr; }
}

@media (max-width: 360px) {
    .container { padding-left: 16px; padding-right: 16px; }
    .section { padding-top: 40px; padding-bottom: 40px; }
    .hero-content h1 { font-size: 1.65rem; }
    .page-hero h1 { font-size: 1.5rem; }
    .home-hero-title { font-size: 1.6rem; }
    .section-title { font-size: 1.5rem; }
    .btn:not(.btn-block) { display: block; width: 100%; text-align: center; }
    .hero-cta-group .btn, .home-hero-cta .btn, .home-contact-actions .btn { width: 100%; }
}

@media (min-width: 1440px) {
    :root { --max-width: 1400px; }
    html { font-size: 17px; }
    .section-title { font-size: 2.25rem; }
    .page-hero h1 { font-size: 2.8rem; }
    .home-hero-title { font-size: 3rem; }
    .home-section-title { font-size: 2rem; }
    .home-products-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
    .news-grid { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
}

@media (min-width: 1920px) {
    :root { --max-width: 1600px; }
    html { font-size: 18px; }
}

/* ============================================================
   Layout Blocks — rendered from layout_json via renderLayout
   ============================================================ */
.layout-blocks { width: 100%; }

.lb { width: 100%; }

/* Hero */
.lb-hero {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-size: cover;
    background-position: center;
}

.lb-hero-overlay {
    position: absolute;
    inset: 0;
    background: #000;
    pointer-events: none;
}

.lb-hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 40px 24px;
}

.lb-hero h1 {
    color: #fff;
    font-size: 2.2rem;
    font-weight: 700;
    margin: 0 0 16px;
    line-height: 1.3;
}

.lb-hero-sub {
    color: rgba(255,255,255,0.85);
    font-size: 1.1rem;
    margin: 0 0 24px;
    line-height: 1.6;
}

.lb-hero-btn {
    display: inline-block;
    margin-top: 8px;
}

/* RichText */
.lb-richtext {
    line-height: 1.8;
    font-size: 1rem;
}

/* ImageText */
.lb-imgtext {
    display: flex;
    gap: 32px;
}

.lb-imgtext-img-left { flex-direction: row; }
.lb-imgtext:not(.lb-imgtext-img-left) { flex-direction: row-reverse; }

.lb-imgtext-top { align-items: flex-start; }
.lb-imgtext-center { align-items: center; }
.lb-imgtext-bottom { align-items: flex-end; }

.lb-imgtext-img img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
}

.lb-imgtext-text {
    flex: 1;
    min-width: 0;
}

.lb-imgtext-text h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin: 0 0 12px;
    color: var(--heading);
}

.lb-imgtext-text p {
    margin: 0 0 12px;
    line-height: 1.7;
}

/* Image */
.lb-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
}

.lb-image-ratio { border-radius: 8px; overflow: hidden; }
.lb-image-link { display: block; text-decoration: none; }

.lb-caption {
    text-align: center;
    font-size: 0.88rem;
    color: var(--text-light);
    margin-top: 10px;
}

/* Card Grid */
.lb-section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 20px;
    color: var(--heading);
}

.lb-card-grid {
    display: grid;
    gap: 20px;
}

.lb-card {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s, box-shadow 0.2s;
}

.lb-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.lb-card-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.lb-card-body {
    padding: 16px;
}

.lb-card-body h4 {
    font-size: 1rem;
    margin: 0 0 6px;
    color: var(--heading);
    font-weight: 600;
}

.lb-card-body p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Gallery */
.lb-gallery {
    display: grid;
}

.lb-gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 6px;
    display: block;
}

.lb-gallery-item figcaption {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 6px;
}

/* Table */
.lb-table-wrap { overflow-x: auto; }
.lb-table-caption { font-size: 0.95rem; font-weight: 600; margin-bottom: 10px; color: var(--heading); }

.lb-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}

.lb-table th {
    background: var(--bg-soft);
    font-weight: 600;
    text-align: left;
    padding: 12px 16px;
    border: 1px solid var(--border);
    color: var(--heading);
}

.lb-table td {
    padding: 10px 16px;
    border: 1px solid var(--border);
    color: var(--text);
}

.lb-table-striped tbody tr:nth-child(even) {
    background: var(--bg-soft);
}

/* CTA */
.lb-cta {
    text-align: center;
    padding: 48px 24px;
    border-radius: 12px;
}

.lb-cta-default { background: var(--bg-highlight); color: var(--heading); }
.lb-cta-highlight { background: var(--primary); color: #fff; }
.lb-cta-dark { background: var(--primary-dark); color: #e2e8f0; }

.lb-cta h2 { font-size: 1.6rem; margin: 0 0 12px; }
.lb-cta p { font-size: 1rem; margin: 0 0 24px; opacity: 0.9; }

.lb-cta-highlight .btn { background: rgba(255,255,255,0.25); border-color: rgba(255,255,255,0.4); }
.lb-cta-dark .btn { background: var(--primary-bright); border-color: var(--primary-bright); }

/* Divider */
.lb-divider { border: none; }

/* Spacer */
.lb-spacer { content: ""; display: block; }

/* Columns */
.lb-columns {
    display: flex;
    flex-wrap: wrap;
}

.lb-column {
    min-width: 0;
}

/* Video */
.lb-video {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    background: #000;
}

.lb-video video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Accordion */
.lb-accordion details {
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 8px;
    overflow: hidden;
}

.lb-accordion summary {
    padding: 14px 20px;
    font-weight: 600;
    cursor: pointer;
    background: var(--bg-soft);
    font-size: 1rem;
    color: var(--heading);
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.15s;
}

.lb-accordion summary:hover { background: var(--border); }

.lb-accordion summary::after {
    content: '▶';
    font-size: 0.7rem;
    transition: transform 0.2s;
    flex-shrink: 0;
}

.lb-accordion details[open] summary::after { transform: rotate(90deg); }

.lb-accordion-body {
    padding: 16px 20px;
    line-height: 1.7;
}

/* Layout Blocks Responsive */
@media (max-width: 768px) {
    .lb-hero h1 { font-size: 1.6rem; }
    .lb-hero-content { padding: 24px 16px; }

    .lb-imgtext { flex-direction: column !important; gap: 20px; }
    .lb-imgtext-img { flex: unset !important; }

    .lb-columns.lb-columns-stack { flex-direction: column; }
    .lb-columns.lb-columns-stack .lb-column { flex: unset !important; width: 100% !important; }

    .lb-card-grid { grid-template-columns: 1fr !important; }
    .lb-gallery { grid-template-columns: repeat(2, 1fr) !important; }

    .lb-cta { padding: 32px 16px; }
    .lb-cta h2 { font-size: 1.3rem; }
}

/* === 下载中心 === */
.download-category-block { margin-bottom: 3rem; }
.download-category-block:last-child { margin-bottom: 0; }
.download-category-title {
    font-size: 1.25rem;
    color: var(--primary);
    margin-bottom: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border);
}
.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}
.download-card {
    display: flex;
    flex-direction: column;
    background: var(--bg);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all var(--transition);
    color: var(--text);
}
.download-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    color: var(--text);
}
.download-card-image {
    height: 140px;
    overflow: hidden;
    background: var(--bg-light);
}
.download-card-image img { width: 100%; height: 100%; object-fit: cover; }
.download-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.download-card-body h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }
.download-card-desc { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 12px; flex: 1; }
.download-card-meta { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 8px; }
.download-card-meta span + span::before { content: ' · '; }
.download-card-link { font-size: 0.9rem; font-weight: 600; color: var(--accent); }
.download-detail-category { font-size: 1rem; color: var(--text-secondary); }
.download-detail-content { max-width: 720px; }
.download-detail-cover { margin-bottom: 1.5rem; border-radius: var(--radius); overflow: hidden; }
.download-detail-cover img { width: 100%; height: auto; }
.download-detail-desc { margin-bottom: 1.5rem; }
.download-detail-meta { margin-bottom: 1.5rem; font-size: 0.95rem; color: var(--text-secondary); }
.download-detail-meta span + span::before { content: ' · '; }
.btn-download-trigger { margin-top: 0.5rem; }

/* 下载分类 hero 背景图（遮罩统一用 .page-hero-overlay） */
.download-category-hero {
    background-size: cover;
    background-position: center;
    background-color: var(--primary);
}
.download-category-hero-icon { width: 48px; height: 48px; vertical-align: middle; margin-right: 12px; filter: brightness(0) invert(1); }
.download-category-block { margin-bottom: 2.5rem; }
.download-category-title { font-size: 1.35rem; margin-bottom: 1rem; display: flex; align-items: center; gap: 10px; }
.download-category-title a { color: var(--primary); }
.download-category-title a:hover { text-decoration: underline; }
.download-category-icon { width: 28px; height: 28px; object-fit: contain; vertical-align: middle; }
.download-tag-filter { font-size: 0.95rem; margin-top: 8px; }
.download-tag-filter a { color: rgba(255,255,255,0.9); text-decoration: underline; }
.download-subcategories { margin-top: 1rem; display: flex; flex-wrap: wrap; gap: 12px; }
.download-subcat-link { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; background: var(--bg-light); border-radius: var(--radius); font-size: 0.9rem; color: var(--text); }
.download-subcat-link:hover { background: var(--border); color: var(--primary); }
.download-subcategory-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; margin-bottom: 2rem; }
.download-subcategory-card { display: flex; flex-direction: column; align-items: center; padding: 24px 16px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-card); transition: all var(--transition); color: var(--text); }
.download-subcategory-card:hover { border-color: var(--primary); color: var(--primary); box-shadow: var(--shadow); }
.download-subcategory-icon { width: 40px; height: 40px; object-fit: contain; margin-bottom: 10px; }
.download-category-files .section-title { font-size: 1.2rem; margin-bottom: 1rem; }
.download-card-tags { margin-bottom: 8px; display: flex; flex-wrap: wrap; gap: 6px; }
.tag-badge { display: inline-block; padding: 4px 10px; font-size: 0.8rem; background: var(--bg-light); border-radius: 999px; color: var(--text-secondary); }
.tag-badge a { color: inherit; }
.tag-badge a:hover { color: var(--primary); }
.download-detail-tags { margin-bottom: 1rem; }
.download-detail-tags-label { font-size: 0.9rem; color: var(--text-secondary); margin-right: 8px; }
.download-detail-tags .tag-badge { margin-right: 6px; }

/* 下载登记弹窗 */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(0,0,0,0.5);
}
.modal-box {
    position: relative;
    width: 100%;
    max-width: 440px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--bg);
    border-radius: var(--radius);
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    padding: 1.5rem;
}
.download-modal .modal-title { margin: 0 0 0.5rem; font-size: 1.25rem; }
.download-modal-hint { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 1.25rem; }
#downloadModalForm .form-group { margin-bottom: 1rem; }
#downloadModalForm .form-group label { display: block; margin-bottom: 4px; font-size: 0.9rem; }
#downloadModalForm input { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 1rem; box-sizing: border-box; }
#downloadModalForm #dlSubmitBtn { margin-top: 0.5rem; }
.download-modal-phone-status { font-size: 0.9rem; margin: -0.25rem 0 1rem; }
.download-modal-error { color: #b91c1c; font-size: 0.9rem; margin-top: 0.75rem; }
.modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    background: transparent;
    font-size: 1.5rem;
    line-height: 1;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--radius);
}
.modal-close:hover { color: var(--text); background: var(--bg-light); }

/* ========== 首页：工业仪器官网（现代科技感 · 极简 · 工业设计）========== */
.home-page { --home-bg-dark: #0d1421; --home-bg-mid: #151d2e; --home-border: rgba(255,255,255,0.08); --home-text-on-dark: rgba(255,255,255,0.92); --home-text-muted-on-dark: rgba(255,255,255,0.65); }

/* 1. Hero */
.home-hero { position: relative; min-height: 75vh; display: flex; align-items: center; }
.home-hero-swiper { width: 100%; height: 75vh; min-height: 520px; }
.home-hero-slide {
    position: relative;
    height: 75vh;
    min-height: 520px;
    background-color: var(--home-bg-dark);
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
}
.home-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(13,20,33,0.88) 0%, rgba(21,29,46,0.75) 100%);
}
.home-hero-inner { position: relative; z-index: 2; color: var(--home-text-on-dark); max-width: 720px; }
.home-hero-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--home-text-muted-on-dark);
    margin-bottom: 0.75rem;
}
.home-hero-title { font-size: clamp(1.9rem, 4vw, 2.75rem); font-weight: 700; line-height: 1.2; margin-bottom: 1rem; letter-spacing: -0.02em; }
.home-hero-desc { font-size: 1.05rem; color: var(--home-text-muted-on-dark); margin-bottom: 1.75rem; line-height: 1.6; }
.home-hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.home-hero-cta .btn-light { color: var(--home-text-on-dark); border-color: rgba(255,255,255,0.4); }
.home-hero-cta .btn-light:hover { background: rgba(255,255,255,0.12); color: #fff; border-color: rgba(255,255,255,0.6); }
.home-hero-static { position: relative; min-height: 75vh; display: flex; align-items: center; background: linear-gradient(135deg, var(--home-bg-dark) 0%, var(--home-bg-mid) 50%, #0a0f18 100%); background-size: cover; background-position: center; }
.home-hero-pagination { bottom: 28px !important; }
.home-hero-pagination .swiper-pagination-bullet { background: rgba(255,255,255,0.4); opacity: 1; }
.home-hero-pagination .swiper-pagination-bullet-active { background: #fff; }
.home-hero-next, .home-hero-prev { color: rgba(255,255,255,0.8); }
.home-hero-next:hover, .home-hero-prev:hover { color: #fff; }

/* 2. 核心技术优势 */
.home-advantages { background: var(--bg); }
.home-section-title { font-size: 1.75rem; font-weight: 700; text-align: center; margin-bottom: 0.5rem; color: var(--text-heading); letter-spacing: -0.02em; }
.home-section-lead { text-align: center; color: var(--text-secondary); margin-bottom: 2.5rem; max-width: 560px; margin-left: auto; margin-right: auto; }
.home-advantages-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.home-advantage-card {
    padding: 28px 24px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.home-advantage-card:hover { border-color: var(--primary); box-shadow: 0 8px 24px rgba(10,70,160,0.08); }
.home-advantage-num { display: block; font-size: 0.8rem; font-weight: 600; color: var(--primary); margin-bottom: 12px; letter-spacing: 0.05em; }
.home-advantage-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; color: var(--text-heading); }
.home-advantage-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; margin: 0; }
@media (max-width: 1024px) { .home-advantages-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .home-advantages-grid { grid-template-columns: 1fr; } }

/* 3. 产品系列 */
.home-products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; margin-bottom: 2rem; }
.home-product-card {
    display: block;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
    color: var(--text);
}
.home-product-card:hover { border-color: var(--primary); box-shadow: 0 8px 24px rgba(10,70,160,0.08); color: var(--text); }
.home-product-img { height: 180px; overflow: hidden; background: var(--bg-light); }
.home-product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.home-product-card:hover .home-product-img img { transform: scale(1.03); }
.home-product-body { padding: 18px; }
.home-product-body h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; color: var(--text-heading); }
.home-product-meta { font-size: 0.85rem; color: var(--text-secondary); margin: 0; line-height: 1.5; }
.home-section-cta { text-align: center; }
.home-section-cta .btn { min-width: 160px; }

/* 4. 应用行业 */
.home-industries-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; }
.home-industry-card {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100px;
    padding: 20px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-heading);
    transition: border-color 0.25s ease, background 0.25s ease;
}
.home-industry-card:hover { border-color: var(--primary); background: var(--bg-light); color: var(--primary); }

/* 5. 测试标准 */
.home-standards-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.home-std-tag {
    padding: 8px 16px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text);
    transition: border-color 0.25s ease, color 0.25s ease;
}
.home-std-tag:hover { border-color: var(--primary); color: var(--primary); }

/* 6. 客户案例 */
.home-case-card {
    margin: 0;
    padding: 32px 28px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-style: normal;
}
.home-case-quote { font-size: 1rem; color: var(--text); line-height: 1.7; margin-bottom: 1rem; }
.home-case-card footer { font-size: 0.9rem; color: var(--text-secondary); }
.home-case-card footer strong { color: var(--text-heading); }
.home-cases-placeholder { text-align: center; padding: 2rem; color: var(--text-secondary); }
.home-cases-placeholder p { margin-bottom: 1rem; }
.home-cases-swiper .swiper-pagination-bullet { background: var(--border-medium); }
.home-cases-swiper .swiper-pagination-bullet-active { background: var(--primary); }

/* 7. 技术文章 */
.home-articles-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; margin-bottom: 2rem; }
.home-article-card {
    display: block;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
    color: var(--text);
}
.home-article-card:hover { border-color: var(--primary); box-shadow: 0 8px 24px rgba(10,70,160,0.08); color: var(--text); }
.home-article-img { height: 160px; overflow: hidden; background: var(--bg-light); }
.home-article-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.home-article-card:hover .home-article-img img { transform: scale(1.03); }
.home-article-body { padding: 18px; }
.home-article-body h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; color: var(--text-heading); }
.home-article-body p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 8px; line-height: 1.5; }
.home-article-date { font-size: 0.8rem; color: var(--text-muted); }

/* 8. 联系我们 */
.home-contact { background: var(--home-bg-dark); color: var(--home-text-on-dark); }
.home-contact-inner { max-width: 640px; margin: 0 auto; text-align: center; padding: 2rem 0; }
.home-contact-title { font-size: 1.75rem; font-weight: 700; margin-bottom: 0.75rem; color: #fff; }
.home-contact-desc { color: var(--home-text-muted-on-dark); margin-bottom: 1.5rem; line-height: 1.6; }
.home-contact-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-bottom: 1.5rem; }
.home-contact-actions .btn-light { color: var(--home-text-on-dark); border-color: rgba(255,255,255,0.4); }
.home-contact-actions .btn-light:hover { background: rgba(255,255,255,0.12); color: #fff; border-color: rgba(255,255,255,0.6); }
.home-contact-info { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem 1.5rem; font-size: 0.9rem; color: var(--home-text-muted-on-dark); }