/* ============================================================
   重庆巨点科技有限公司官网 - 简约大气设计系统
   主色: 深蓝 #0B3C8C / 青蓝 #0EA5E9 / 中性灰阶
   ============================================================ */
:root {
    --blue: #0B3C8C;
    --blue-2: #1358C8;
    --cyan: #0EA5E9;
    --navy: #0F172A;
    --slate: #475569;
    --gray: #64748B;
    --light: #F1F6FC;
    --line: #E2E8F0;
    --bg: #FFFFFF;
    --radius: 12px;
    --shadow: 0 8px 30px rgba(15, 23, 42, .07);
    --shadow-lg: 0 18px 50px rgba(11, 60, 140, .14);
    --font: "Microsoft YaHei", "PingFang SC", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    color: var(--navy);
    background: var(--bg);
    font-size: 15px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--blue); text-decoration: none; }
img { display: block; max-width: 100%; }
code { background: #EEF2F7; padding: 2px 6px; border-radius: 4px; font-size: .92em; color: var(--blue); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 12px 28px; border-radius: 999px; font-size: 15px; font-weight: 600;
    border: 2px solid transparent; cursor: pointer; transition: all .22s ease;
    font-family: var(--font); line-height: 1.4;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-2); transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.btn-outline { background: transparent; color: var(--blue); border-color: var(--blue); }
.btn-outline:hover { background: var(--blue); color: #fff; }
.btn-ghost { background: #fff; color: var(--blue); }
.btn-ghost:hover { background: var(--light); }
.btn-light { background: #fff; color: var(--blue); }
.btn-light:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-block { width: 100%; }
.btn-danger { background: #DC2626; color: #fff; border-color: #DC2626; }
.btn-danger:hover { background: #B91C1C; }
.link-more { color: var(--blue); font-weight: 600; font-size: 14px; }
.link-more:hover { color: var(--cyan); }

/* ---------- 标签 / 徽章 ---------- */
.tag {
    display: inline-block; padding: 2px 10px; border-radius: 999px;
    background: #EAF2FD; color: var(--blue); font-size: 12px; font-weight: 600;
}
.tag-red { background: #FEE2E2; color: #B91C1C; }
.badge-hot {
    position: absolute; top: 10px; left: 10px; background: #EF4444; color: #fff;
    font-size: 12px; padding: 2px 10px; border-radius: 999px; font-weight: 600;
}
.mf-chip {
    background: #F1F5F9; color: var(--slate); padding: 2px 10px;
    border-radius: 999px; font-size: 12px;
}

/* ---------- 顶部信息条 ---------- */
.topbar { background: var(--navy); color: #CBD5E1; font-size: 13px; }
.topbar-inner { display: flex; justify-content: space-between; padding-top: 8px; padding-bottom: 8px; }
.topbar-right { opacity: .85; }

/* ---------- 主导航 ---------- */
.site-header {
    position: sticky; top: 0; z-index: 1000; background: #fff;
    border-bottom: 1px solid var(--line); box-shadow: 0 2px 12px rgba(15,23,42,.04);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand img { height: 44px; width: auto; }
.nav-toggle { display: none; background: none; border: none; font-size: 26px; cursor: pointer; color: var(--navy); }
.nav-list { display: flex; list-style: none; gap: 4px; }
.nav-item { position: relative; }
.nav-item > a {
    display: block; padding: 10px 16px; color: var(--navy); font-weight: 600;
    font-size: 15px; border-radius: 10px; transition: color .2s;
}
.nav-item > a:hover, .nav-item.active > a { color: var(--blue); }
.nav-item.active > a::after {
    content: ""; display: block; height: 3px; width: 22px; background: var(--blue);
    border-radius: 2px; margin: 4px auto 0;
}

/* 产品服务 三级下拉（纯 CSS hover） */
.mega {
    display: none; position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
    background: #fff; border-radius: 16px; border: 1px solid var(--line);
    box-shadow: var(--shadow-lg); padding: 14px; min-width: 560px; z-index: 2000;
}
.has-mega:hover .mega { display: flex; gap: 8px; }
.mega-col { position: relative; flex: 1; min-width: 128px; }
.mega-biz {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 12px; border-radius: 10px; color: var(--navy); font-weight: 700; font-size: 14px;
}
.mega-col:hover .mega-biz, .mega-biz:hover { background: #EAF2FD; color: var(--blue); }
.mega-arrow { color: var(--gray); }
.mega-sub {
    display: none; position: absolute; left: 100%; top: -6px; margin-left: 4px;
    background: #fff; border: 1px solid var(--line); border-radius: 12px;
    box-shadow: var(--shadow-lg); padding: 8px; width: 210px; z-index: 2100;
}
.mega-col:hover .mega-sub { display: flex; flex-direction: column; }
.mega-sub a {
    padding: 8px 12px; border-radius: 8px; color: var(--slate); font-size: 14px; white-space: nowrap;
}
.mega-sub a:hover { background: #EAF2FD; color: var(--blue); }
.mega-sub .mega-all { color: var(--blue); font-weight: 700; border-top: 1px dashed var(--line); margin-top: 6px; padding-top: 10px; }
.mega-foot { position: absolute; bottom: -52px; left: 0; right: 0; text-align: center; }
.mega-foot a { display: inline-block; background: var(--blue); color: #fff; padding: 10px 26px; border-radius: 999px; font-weight: 600; font-size: 14px; box-shadow: var(--shadow-lg); }
.mega-foot a:hover { background: var(--blue-2); }

/* ---------- 首页 Hero ---------- */
.hero {
    background: linear-gradient(120deg, #0B3C8C 0%, #123c80 38%, #0EA5E9 130%);
    color: #fff; overflow: hidden;
}
.hero-inner { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; padding-top: 64px; padding-bottom: 64px; align-items: center; }
.hero-badge {
    display: inline-block; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.28);
    padding: 6px 16px; border-radius: 999px; font-size: 13px; margin-bottom: 20px; letter-spacing: 1px;
}
.hero h1 { font-size: 46px; line-height: 1.25; font-weight: 800; margin-bottom: 18px; }
.hero h1 em { font-style: normal; color: #7DD3FC; }
.hero-desc { font-size: 17px; color: #DBEAFE; max-width: 480px; margin-bottom: 28px; }
.hero-desc strong { color: #fff; }
.hero-cta { display: flex; gap: 14px; }
.hero-visual { position: relative; }
.hero-biz-img {
    width: 100%; border-radius: 20px; box-shadow: 0 24px 60px rgba(2, 18, 44, .45);
    border: 1px solid rgba(255,255,255,.18); transition: opacity .3s ease;
}
.hero-tabs {
    display: flex; gap: 8px; margin-top: 18px; background: rgba(255,255,255,.1);
    padding: 6px; border-radius: 14px; backdrop-filter: blur(6px);
}
.hero-tab {
    flex: 1; padding: 10px 8px; border: none; border-radius: 10px; cursor: pointer;
    background: transparent; color: #DBEAFE; font-weight: 600; font-size: 14px;
    font-family: var(--font); transition: all .2s;
}
.hero-tab.on { background: #fff; color: var(--blue); }

/* ---------- 通用 section ---------- */
.section { padding: 72px 0; }
.section-gray { background: var(--light); }
.section-center { text-align: center; }
.section-head { text-align: center; margin-bottom: 44px; }
.section-head h2 { font-size: 32px; font-weight: 800; position: relative; display: inline-block; }
.section-head h2::after { content: ""; display: block; width: 48px; height: 4px; background: var(--cyan); border-radius: 2px; margin: 14px auto 0; }
.section-head p { color: var(--gray); margin-top: 14px; font-size: 15px; }
.head-link { float: right; color: var(--blue); font-weight: 600; font-size: 14px; }

/* ---------- 主营业务 ---------- */
.biz-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 44px; }
.biz-card {
    background: #fff; border: 1px solid var(--line); border-radius: 16px;
    padding: 26px 22px; cursor: pointer; transition: all .25s ease;
}
.biz-card:hover, .biz-card.on { border-color: var(--blue); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.biz-card.on { border-width: 2px; }
.biz-card-icon {
    width: 46px; height: 46px; border-radius: 12px; color: #fff; font-size: 20px; font-weight: 800;
    display: flex; align-items: center; justify-content: center; margin-bottom: 14px;
}
.biz-card h3 { font-size: 19px; margin-bottom: 2px; }
.biz-en { color: var(--gray); font-size: 12px; letter-spacing: .5px; margin-bottom: 8px; }
.biz-tagline { color: var(--slate); font-size: 14px; margin-bottom: 12px; }
.biz-more { font-size: 14px; font-weight: 700; }
.biz-showcase {
    display: grid; grid-template-columns: 1.15fr 1fr; gap: 40px; align-items: center;
    background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 32px; box-shadow: var(--shadow);
}
.biz-showcase-img img { width: 100%; border-radius: 14px; }
.biz-showcase-text h3 { font-size: 26px; margin-bottom: 4px; }
.biz-showcase-en { color: var(--cyan); font-weight: 700; font-size: 14px; letter-spacing: 2px; margin-bottom: 12px; }
.biz-showcase-text p { color: var(--slate); margin-bottom: 16px; }
.biz-showcase-tags { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- 产品卡片 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product-card {
    background: #fff; border: 1px solid var(--line); border-radius: 16px; overflow: hidden;
    display: block; transition: all .25s ease;
}
.product-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: transparent; }
.product-card-img { position: relative; aspect-ratio: 4/2.8; overflow: hidden; background: var(--light); }
.product-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.product-card:hover .product-card-img img { transform: scale(1.05); }
.product-card-body { padding: 16px 18px 18px; }
.product-card-body h3 { font-size: 16px; margin-bottom: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.product-model { color: var(--blue); font-weight: 700; font-size: 13px; font-family: Consolas, monospace; margin-bottom: 6px; }
.product-spec { color: var(--gray); font-size: 13px; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-card-meta { display: flex; justify-content: space-between; align-items: center; }
.product-price { color: #DC2626; font-weight: 800; }

/* ---------- 产品类型速览 ---------- */
.type-strip { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 36px; }
.type-chip {
    padding: 9px 18px; border-radius: 999px; border: 1px solid var(--line); background: #fff;
    color: var(--slate); font-size: 14px; cursor: pointer; font-family: var(--font);
    transition: all .2s;
}
.type-chip:hover { border-color: var(--blue); color: var(--blue); }
.type-chip.on { background: var(--blue); border-color: var(--blue); color: #fff; }
.type-showcase {
    display: grid; grid-template-columns: 1.15fr 1fr; gap: 40px; align-items: center;
    background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 32px;
}
.type-showcase-img img { width: 100%; border-radius: 14px; }
.type-showcase-text h3 { font-size: 26px; margin-bottom: 4px; }

/* ---------- 行业 ---------- */
.ind-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.ind-card { background: #fff; border-radius: 16px; overflow: hidden; border: 1px solid var(--line); transition: all .25s ease; display: block; }
.ind-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.ind-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.ind-card-body { padding: 18px 20px 22px; }
.ind-card-body h3 { font-size: 17px; margin-bottom: 6px; }
.ind-card-body p { color: var(--gray); font-size: 13.5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------- 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.news-card { background: #fff; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; display: block; transition: all .25s ease; }
.news-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.news-card-img img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.news-card-body { padding: 16px 18px 20px; }
.news-meta { display: flex; gap: 10px; align-items: center; color: var(--gray); font-size: 12.5px; margin-bottom: 8px; }
.news-card-body h3 { font-size: 15.5px; margin-bottom: 8px; line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card-body p { color: var(--gray); font-size: 13px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------- 合作厂商 ---------- */
.mf-strip { display: grid; grid-template-columns: repeat(7, 1fr); gap: 14px; }
.mf-item {
    background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 18px 10px;
    text-align: center; transition: all .22s ease; cursor: default;
}
.mf-item:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.mf-avatar {
    width: 44px; height: 44px; margin: 0 auto 10px; border-radius: 50%;
    background: linear-gradient(135deg, var(--blue), var(--cyan)); color: #fff;
    display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 17px;
}
.mf-name { font-size: 13.5px; font-weight: 700; }
.mf-country { font-size: 12px; color: var(--gray); }

/* ---------- CTA ---------- */
.cta-band { background: linear-gradient(120deg, var(--blue), var(--blue-2)); color: #fff; padding: 56px 0; }
.cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.cta-inner h2 { font-size: 26px; margin-bottom: 6px; }
.cta-inner p { color: #DBEAFE; }

/* ---------- 页面横幅 ---------- */
.page-banner {
    background: linear-gradient(120deg, #0B3C8C, #1358C8 55%, #0EA5E9);
    color: #fff; padding: 56px 0 60px;
}
.banner-inner h1 { font-size: 34px; font-weight: 800; margin-bottom: 8px; }
.banner-inner p { color: #DBEAFE; font-size: 16px; }
.crumb { font-size: 13px; color: #BFDBFE; margin-bottom: 14px; }
.crumb a { color: #DBEAFE; }
.crumb span { color: #fff; }

/* ---------- 产品服务页 ---------- */
.biz-tabs { display: flex; gap: 10px; margin-bottom: 22px; flex-wrap: wrap; }
.biz-tab {
    padding: 12px 30px; border-radius: 999px; border: 1px solid var(--line); background: #fff;
    font-size: 15px; font-weight: 700; color: var(--slate); cursor: pointer; font-family: var(--font); transition: all .2s;
}
.biz-tab:hover { border-color: var(--blue); color: var(--blue); }
.biz-tab.on { background: var(--blue); border-color: var(--blue); color: #fff; }
.biz-banner { position: relative; border-radius: 20px; overflow: hidden; margin-bottom: 40px; }
.biz-banner img { width: 100%; aspect-ratio: 21/7; object-fit: cover; transition: opacity .3s; }
.biz-banner-overlay {
    position: absolute; left: 40px; top: 50%; transform: translateY(-50%);
    background: rgba(15, 23, 42, .55); backdrop-filter: blur(6px); color: #fff;
    border-radius: 16px; padding: 20px 26px; max-width: 520px;
}
.biz-banner-overlay h2 { font-size: 26px; }
.biz-banner-overlay p { color: #DBEAFE; font-size: 14px; }

.type-card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 44px; }
.type-card {
    background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 12px;
    cursor: pointer; transition: all .22s ease; text-align: center;
}
.type-card:hover, .type-card.on { box-shadow: var(--shadow); transform: translateY(-3px); border-color: var(--blue); }
.type-card.on { border-width: 2px; }
.type-card img { width: 100%; border-radius: 10px; aspect-ratio: 4/2.8; object-fit: cover; margin-bottom: 10px; }
.type-card h3 { font-size: 15px; }
.type-card p { color: var(--gray); font-size: 12px; }
.type-biz { display: inline-block; margin-top: 6px; font-size: 11px; background: #EAF2FD; color: var(--blue); padding: 1px 10px; border-radius: 999px; }

.products-layout { display: grid; grid-template-columns: 300px 1fr; gap: 26px; align-items: start; }
.filter-panel {
    position: sticky; top: 96px; background: #fff; border: 1px solid var(--line);
    border-radius: 16px; padding: 22px; box-shadow: var(--shadow);
}
.filter-panel h3 { font-size: 18px; margin-bottom: 6px; }
.filter-hint { color: var(--gray); font-size: 13px; margin-bottom: 16px; }
.field-label { display: block; font-size: 13px; font-weight: 700; color: var(--slate); margin: 12px 0 6px; }
.field-select, .field-input {
    width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px;
    font-size: 14px; font-family: var(--font); background: #fff; color: var(--navy);
    transition: border-color .2s;
}
.field-select:focus, .field-input:focus { outline: none; border-color: var(--cyan); }
textarea.field-input { resize: vertical; }
.filter-panel .btn { margin-top: 14px; }
.filter-pop {
    margin-top: 14px; border-radius: 12px; background: var(--light); padding: 14px;
    display: none; font-size: 13.5px; color: var(--slate);
}
.filter-pop.show { display: block; }
.filter-pop img { width: 100%; border-radius: 8px; margin-bottom: 10px; }
.filter-pop h4 { font-size: 14.5px; color: var(--navy); margin-bottom: 4px; }

.products-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; gap: 12px; }
.products-toolbar span { color: var(--gray); font-size: 14px; }
.toolbar-search input { width: 240px; }

/* ---------- 弹窗 ---------- */
.modal-mask {
    position: fixed; inset: 0; background: rgba(15, 23, 42, .55); z-index: 3000;
    display: flex; align-items: center; justify-content: center; padding: 24px;
}
.modal-mask[hidden] { display: none; }
.modal {
    background: #fff; border-radius: 18px; box-shadow: var(--shadow-lg);
    width: 100%; max-width: 760px; position: relative; animation: pop .25s ease;
    max-height: 86vh; overflow: auto;
}
.modal-lg { max-width: 900px; }
@keyframes pop { from { transform: scale(.96); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.modal-close {
    position: absolute; right: 14px; top: 12px; width: 34px; height: 34px; border-radius: 50%;
    border: none; background: var(--light); font-size: 20px; cursor: pointer; color: var(--slate); z-index: 10;
}
.modal-close:hover { background: #FEE2E2; color: #B91C1C; }
.modal-body { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; padding: 32px; }
.modal-img img { width: 100%; border-radius: 14px; }
.modal-kicker { color: var(--cyan); font-weight: 700; font-size: 13px; letter-spacing: 1px; margin-bottom: 6px; }
.modal-text h3 { font-size: 24px; margin-bottom: 10px; }
.modal-text p { color: var(--slate); margin-bottom: 14px; }
.modal-tags { display: flex; flex-wrap: wrap; gap: 8px; }

/* 选型工具 */
.wizard-title { padding: 24px 32px 0; font-size: 22px; }
.wizard-steps { display: flex; gap: 6px; padding: 18px 32px 0; }
.wizard-step {
    flex: 1; text-align: center; padding: 10px 6px; border-radius: 10px; background: var(--light);
    color: var(--gray); font-size: 14px; font-weight: 600;
}
.wizard-step.on { background: var(--blue); color: #fff; }
.wizard-content { padding: 26px 32px 34px; min-height: 300px; }
.wizard-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.wizard-option {
    border: 2px solid var(--line); border-radius: 14px; padding: 18px; cursor: pointer;
    text-align: center; transition: all .2s; background: #fff;
}
.wizard-option:hover, .wizard-option.on { border-color: var(--blue); box-shadow: var(--shadow); }
.wizard-option img { width: 100%; border-radius: 8px; margin-bottom: 10px; aspect-ratio: 4/2.6; object-fit: cover; }
.wizard-option h4 { font-size: 15px; margin-bottom: 2px; }
.wizard-option p { font-size: 12.5px; color: var(--gray); }
.wizard-nav { display: flex; justify-content: space-between; margin-top: 22px; }

/* ---------- 产品详情 ---------- */
.detail-layout { display: grid; grid-template-columns: 1fr 1.15fr; gap: 44px; align-items: start; }
.detail-gallery { position: sticky; top: 100px; }
.detail-img { width: 100%; border-radius: 18px; border: 1px solid var(--line); }
.detail-thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.thumb {
    width: 84px; height: 60px; border-radius: 10px; overflow: hidden; border: 2px solid var(--line);
    cursor: pointer; padding: 0; background: #fff;
}
.thumb:hover { border-color: var(--cyan); }
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.detail-meta-line { display: flex; gap: 8px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }
.detail-title { font-size: 28px; line-height: 1.35; margin-bottom: 8px; }
.detail-model { color: var(--gray); margin-bottom: 10px; }
.detail-spec { font-size: 16px; font-weight: 700; color: var(--blue); margin-bottom: 12px; }
.detail-desc { color: var(--slate); margin-bottom: 22px; }
.detail-params h3 { font-size: 17px; margin-bottom: 10px; }
.param-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.param-table td { padding: 9px 12px; border-bottom: 1px solid var(--line); }
.param-table td:first-child { color: var(--gray); width: 130px; background: var(--light); border-radius: 8px 0 0 8px; }
.detail-price-row { display: flex; align-items: baseline; gap: 12px; margin: 22px 0; }
.detail-price-label { color: var(--gray); }
.detail-price { font-size: 30px; font-weight: 800; color: #DC2626; }
.detail-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.related-block { margin-top: 56px; }
.related-block h3 { font-size: 22px; margin-bottom: 18px; }

/* ---------- 关于我们 ---------- */
.about-intro { display: grid; grid-template-columns: 1.2fr 1fr; gap: 44px; align-items: center; margin-bottom: 48px; }
.about-text h2 { font-size: 26px; margin-bottom: 16px; }
.about-text p { color: var(--slate); margin-bottom: 12px; text-indent: 2em; }
.about-img { width: 100%; border-radius: 18px; box-shadow: var(--shadow-lg); }
.about-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 56px; }
.stat { text-align: center; background: var(--light); border-radius: 16px; padding: 26px 10px; }
.stat-num { font-size: 36px; font-weight: 800; color: var(--blue); }
.stat-label { color: var(--gray); font-size: 14px; margin-top: 4px; }
.about-section { margin-bottom: 44px; }
.about-section > h2 { font-size: 24px; margin-bottom: 22px; }
.timeline { border-left: 3px solid var(--line); padding-left: 26px; }
.tl-item { position: relative; margin-bottom: 22px; }
.tl-item::before {
    content: ""; position: absolute; left: -33px; top: 6px; width: 12px; height: 12px;
    border-radius: 50%; background: var(--cyan); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--cyan);
}
.tl-year { font-weight: 800; color: var(--blue); font-size: 17px; }
.tl-body h4 { font-size: 16px; margin: 2px 0 4px; }
.tl-body p { color: var(--gray); font-size: 14px; }
.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.value-card { text-align: center; border: 1px solid var(--line); border-radius: 16px; padding: 28px 16px; }
.value-ic { font-size: 30px; margin-bottom: 10px; }
.value-card h4 { font-size: 16px; margin-bottom: 6px; }
.value-card p { color: var(--gray); font-size: 13.5px; }

/* ---------- 新闻详情 ---------- */
.article-wrap { display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: start; }
.article { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 34px; }
.article-title { font-size: 26px; line-height: 1.4; margin: 12px 0 18px; }
.article-img { width: 100%; border-radius: 14px; margin-bottom: 22px; }
.article-content p { color: var(--slate); margin-bottom: 16px; line-height: 2; }
.article-side h3 { font-size: 17px; margin-bottom: 14px; }
.side-link { display: block; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; margin-bottom: 10px; color: var(--navy); font-size: 14px; transition: all .2s; }
.side-link:hover { border-color: var(--blue); box-shadow: var(--shadow); }
.side-date { display: block; font-size: 12px; color: var(--gray); margin-bottom: 4px; }

/* ---------- 技术支持 ---------- */
.support-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 44px; }
.support-card { border: 1px solid var(--line); border-radius: 16px; padding: 26px 22px; transition: all .25s; }
.support-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.support-ic { font-size: 30px; margin-bottom: 12px; }
.support-card h3 { font-size: 17px; margin-bottom: 8px; }
.support-card p { color: var(--gray); font-size: 13.5px; margin-bottom: 12px; }
.faq-block { margin-bottom: 44px; }
.faq-block h2 { font-size: 24px; margin-bottom: 20px; }
.faq-item { border: 1px solid var(--line); border-radius: 14px; padding: 18px 22px; margin-bottom: 12px; }
.faq-item h4 { font-size: 15.5px; color: var(--blue); margin-bottom: 6px; }
.faq-item p { color: var(--slate); font-size: 14px; }
.support-cta { text-align: center; background: var(--light); border-radius: 18px; padding: 40px; }
.support-cta h3 { font-size: 22px; margin-bottom: 8px; }
.support-cta p { color: var(--gray); margin-bottom: 18px; }

/* ---------- 行业详情 ---------- */
.ind-detail-grid { display: grid; gap: 34px; }
.ind-detail-card { display: grid; grid-template-columns: 1fr 1.2fr; gap: 30px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 26px; }
.ind-detail-card img { width: 100%; border-radius: 14px; }
.ind-detail-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 8px; }
.ind-detail-head h2 { font-size: 23px; }
.ind-en { color: var(--gray); font-size: 13px; }
.ind-detail-body p { color: var(--slate); margin-bottom: 14px; }
.ind-highlights { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }

/* ---------- 解决方案 ---------- */
.sol-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.sol-card { background: #fff; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; display: block; transition: all .25s; }
.sol-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.sol-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.sol-card-body { padding: 22px 24px 26px; }
.sol-biz { display: inline-block; background: #EAF2FD; color: var(--blue); font-size: 12px; font-weight: 700; padding: 2px 12px; border-radius: 999px; margin-bottom: 8px; }
.sol-card-body h3 { font-size: 19px; margin-bottom: 8px; }
.sol-card-body p { color: var(--gray); font-size: 14px; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.sol-detail { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; align-items: start; }
.sol-detail img { width: 100%; border-radius: 18px; }
.sol-detail-text h2 { font-size: 20px; margin: 16px 0 10px; }
.sol-detail-text p { color: var(--slate); }
.feature-list { list-style: none; margin-bottom: 20px; }
.feature-list li { padding: 8px 0 8px 30px; position: relative; color: var(--slate); border-bottom: 1px dashed var(--line); }
.feature-list li::before { content: "✓"; position: absolute; left: 4px; color: var(--cyan); font-weight: 800; }

/* ---------- 联系我们 ---------- */
.contact-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; align-items: start; }
.contact-info { border: 1px solid var(--line); border-radius: 18px; padding: 28px; }
.contact-info h2 { font-size: 22px; margin-bottom: 20px; }
.contact-item { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px dashed var(--line); }
.contact-item:last-child { border-bottom: none; }
.ci-ic { font-size: 22px; }
.contact-item h4 { font-size: 14.5px; }
.contact-item p { color: var(--gray); font-size: 14px; }
.contact-form { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 28px; box-shadow: var(--shadow); }
.contact-form h2 { font-size: 22px; margin-bottom: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-col { margin-bottom: 14px; }
.contact-form .field-input, .contact-form .field-select { margin-bottom: 14px; }
.check-line { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--slate); }
.alert { padding: 14px 18px; border-radius: 12px; margin-bottom: 20px; font-weight: 600; }
.alert-success { background: #D1FAE5; color: #065F46; }
.alert-danger { background: #FEE2E2; color: #991B1B; }
.text-danger { color: #DC2626; font-size: 13px; margin-bottom: 8px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--navy); color: #CBD5E1; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr 1.1fr; gap: 30px; padding: 52px 24px 40px; }
.footer-logo { height: 40px; margin-bottom: 16px; }
.footer-slogan { font-size: 13.5px; line-height: 1.9; margin-bottom: 10px; color: #94A3B8; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer-col a { display: block; color: #94A3B8; font-size: 13.5px; padding: 4px 0; }
.footer-col a:hover { color: #fff; }
.footer-col p { font-size: 13.5px; padding: 3px 0; color: #94A3B8; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 16px 0; font-size: 13px; color: #64748B; text-align: center; }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
    .product-grid { grid-template-columns: repeat(3, 1fr); }
    .mf-strip { grid-template-columns: repeat(4, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .biz-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
    .nav-toggle { display: block; }
    .main-nav { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow-lg); }
    .main-nav.open { display: block; }
    .nav-list { flex-direction: column; padding: 12px; }
    .mega { position: static; transform: none; min-width: 0; box-shadow: none; border: none; display: none; flex-direction: column; padding: 0 0 0 16px; }
    .has-mega:hover .mega { display: flex; }
    .mega-sub { position: static; margin: 0; box-shadow: none; border: none; display: flex; padding-left: 14px; }
    .mega-foot { position: static; padding-top: 8px; }
    .hero-inner { grid-template-columns: 1fr; }
    .hero h1 { font-size: 34px; }
    .products-layout { grid-template-columns: 1fr; }
    .filter-panel { position: static; }
    .detail-layout, .biz-showcase, .type-showcase, .about-intro, .sol-detail, .contact-layout { grid-template-columns: 1fr; }
    .article-wrap { grid-template-columns: 1fr; }
    .type-card-grid { grid-template-columns: repeat(2, 1fr); }
    .ind-grid { grid-template-columns: repeat(2, 1fr); }
    .support-grid { grid-template-columns: repeat(2, 1fr); }
    .modal-body { grid-template-columns: 1fr; }
    .wizard-options { grid-template-columns: repeat(2, 1fr); }
    .ind-detail-card { grid-template-columns: 1fr; }
    .biz-banner-overlay { position: static; transform: none; background: var(--navy); border-radius: 0; }
    .cta-inner { flex-direction: column; text-align: center; }
}
@media (max-width: 640px) {
    .product-grid, .news-grid, .ind-grid, .value-grid, .support-grid, .about-stats { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .biz-grid { grid-template-columns: 1fr; }
    .topbar-right { display: none; }
    .hero-cta { flex-direction: column; }
    .footer-grid { grid-template-columns: 1fr; }
    .type-card-grid { grid-template-columns: 1fr; }
    .mf-strip { grid-template-columns: repeat(2, 1fr); }
}

/* ============ 补充：WebForms 版新增组件 ============ */

/* 新闻头条（列表页置顶大图） */
.news-feature {
    display: grid;
    grid-template-columns: 1.25fr 1fr;
    gap: 28px;
    align-items: center;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 18px;
    overflow: hidden;
    margin-bottom: 28px;
    transition: box-shadow .25s, transform .25s;
}
.news-feature:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.news-feature img { width: 100%; height: 100%; min-height: 260px; object-fit: cover; }
.news-feature-body { padding: 30px 34px 34px 10px; }
.news-feature-body h2 { font-size: 24px; line-height: 1.4; margin-bottom: 12px; }
.news-feature-body p { color: var(--slate); font-size: 14.5px; line-height: 1.8; margin-bottom: 16px; }
@media (max-width: 768px) {
    .news-feature { grid-template-columns: 1fr; }
    .news-feature-body { padding: 18px; }
    .news-feature img { min-height: 180px; }
}

/* 错误提示（别名，与 alert-danger 同款） */
.alert-error { background: #FEE2E2; color: #991B1B; }

/* ============ 后台管理页组件（样式外链化，去除页面内联 style） ============ */

/* 内容面板（白色卡片） */
.panel {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 22px 24px;
    box-shadow: var(--shadow);
}
.panel + .panel { margin-top: 20px; }

/* 紧凑提示条（后台列表页顶部） */
.alert-tight { margin-bottom: 14px; }

/* 表格列宽 */
.col-img { width: 70px; }
.col-logo { width: 70px; }
.col-op { width: 120px; }
.col-op-lg { width: 130px; }
.col-price { width: 90px; }
.col-hot { width: 90px; }

/* 筛选工具栏（产品列表） */
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
.w-220 { width: 220px; }
.w-160 { width: 160px; }
.spacer { flex: 1; }

/* 留言卡片 */
.msg-card { border: 1px solid #e8edf4; border-radius: 8px; padding: 14px 16px; margin-bottom: 12px; background: #FBFCFE; }
.msg-meta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 8px; }
.msg-name { font-size: 14px; }
.msg-muted { color: #8492a6; font-size: 13px; }
.msg-time { color: #a0aec0; font-size: 12px; margin-left: auto; }

/* 动态颜色徽章：页面只传 CSS 变量 --c，样式规则全部在此 */
.badge-color { background: color-mix(in srgb, var(--c) 14%, #fff); color: var(--c); }
.biz-card-icon { background: var(--c); }

/* 表单辅助 */
.field-label-block { display: block; margin-bottom: 6px; }
.field-note { font-size: 13px; color: #3a4a63; }

/* 面板内描述文字 */
.panel-desc { color: #55627a; font-size: 13px; line-height: 2; }
.mt-20 { margin-top: 20px; }