@charset "utf-8";
/* ==========================================================================
   site1015 — 工业科技风企业站点样式
   主色：深空蓝 #0d1b2a  强调：琥珀橙 #ff7a18  辅助：电光青 #00b4d8
   ========================================================================== */

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

:root {
    --ink: #0d1b2a;
    --ink-2: #16283d;
    --ink-3: #1f3550;
    --line: #e3e8ef;
    --text: #2b3440;
    --muted: #6b7787;
    --accent: #ff7a18;
    --accent-dark: #e86a0d;
    --cyan: #00b4d8;
    --bg: #ffffff;
    --bg-soft: #f5f7fa;
    --radius: 10px;
    --shadow: 0 6px 24px rgba(13, 27, 42, .08);
    --shadow-hover: 0 14px 38px rgba(13, 27, 42, .16);
    --maxw: 1220px;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.75;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color .2s, background .2s; }
img { max-width: 100%; display: block; border: 0; }
ul, ol { list-style: none; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.35; color: var(--ink); }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ------------------ 顶部工具条 ------------------ */
.topbar {
    background: var(--ink);
    color: #9db0c7;
    font-size: 13px;
    border-bottom: 1px solid rgba(255, 255, 255, .07);
}
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; height: 38px; }
.topbar .tb-left span { margin-right: 18px; }
.topbar .tb-left span i { color: var(--accent); font-style: normal; margin-right: 5px; }
.topbar .tb-right a { color: #9db0c7; margin-left: 16px; }
.topbar .tb-right a:hover { color: var(--accent); }

/* ------------------ 头部导航 ------------------ */
.site-header {
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 900;
    box-shadow: 0 1px 0 var(--line), 0 4px 18px rgba(13, 27, 42, .05);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }

.logo { display: flex; align-items: center; gap: 12px; }
.logo-mark {
    width: 44px; height: 44px;
    background: linear-gradient(135deg, var(--accent), #ffb15c);
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 20px; font-weight: 800;
    clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%);
    letter-spacing: -1px;
}
.logo-text b { display: block; font-size: 20px; color: var(--ink); letter-spacing: .5px; }
.logo-text small { display: block; font-size: 11px; color: var(--muted); letter-spacing: 2.5px; text-transform: uppercase; }
.logo-img { display: block; max-height: 48px; width: auto; }

.nav { display: flex; align-items: center; }
.nav > li { position: relative; }
.nav > li > a {
    display: block; padding: 28px 20px; font-size: 15.5px; font-weight: 600; color: var(--ink);
    position: relative;
}
.nav > li > a::after {
    content: ""; position: absolute; left: 20px; right: 20px; bottom: 22px;
    height: 2px; background: var(--accent); transform: scaleX(0); transition: transform .25s;
    transform-origin: center;
}
.nav > li:hover > a::after, .nav > li.on > a::after { transform: scaleX(1); }
.nav > li:hover > a, .nav > li.on > a { color: var(--accent); }

.subnav {
    position: absolute; top: 76px; left: 0; min-width: 180px;
    background: #fff; box-shadow: var(--shadow); border-top: 2px solid var(--accent);
    display: none; padding: 8px 0; border-radius: 0 0 var(--radius) var(--radius);
}
.nav > li:hover .subnav { display: block; }
.subnav a { display: block; padding: 9px 20px; font-size: 14px; color: var(--text); }
.subnav a:hover { background: var(--bg-soft); color: var(--accent); }

.header-cta {
    display: flex; align-items: center; gap: 12px;
}
.btn-tel {
    background: var(--ink); color: #fff; padding: 10px 18px; border-radius: 6px;
    font-weight: 700; font-size: 15px; letter-spacing: .5px;
}
.btn-tel:hover { background: var(--accent); color: #fff; }

.nav-toggle { display: none; background: none; border: 0; font-size: 26px; color: var(--ink); cursor: pointer; }

/* 移动端二级菜单展开按钮（由 main.js 动态插入，桌面端隐藏） */
.nav-sub-toggle {
    display: none; position: absolute; right: 10px; top: 8px;
    width: 36px; height: 36px; border: 0; background: none;
    font-size: 18px; line-height: 1; color: var(--ink); cursor: pointer;
}

/* 抽屉导航的遮罩与关闭按钮：桌面端一律不显示，由 main.js 动态插入 */
.nav-mask { display: none; }
.nav-close-li { display: none; }

/* 手机端底部快捷栏：桌面端不显示 */
.mobile-bar { display: none; }

/* ------------------ 首页主视觉 ------------------ */
.hero {
    position: relative; overflow: hidden;
    background: var(--ink);
    color: #fff;
    min-height: 480px;
    display: flex; align-items: center;
}
.hero::before {
    content: ""; position: absolute; inset: 0;
    background:
        radial-gradient(circle at 78% 20%, rgba(0, 180, 216, .28), transparent 45%),
        radial-gradient(circle at 12% 82%, rgba(255, 122, 24, .22), transparent 42%);
}
.hero::after {
    content: ""; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
    background-size: 56px 56px;
}
.hero .wrap { position: relative; z-index: 2; padding: 70px 20px; }
.hero h1 { font-size: 44px; color: #fff; line-height: 1.22; margin-bottom: 18px; letter-spacing: -0.5px; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lead { font-size: 17px; color: #b9c9dc; max-width: 620px; margin-bottom: 30px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 46px; margin-top: 46px; flex-wrap: wrap; }
.hero-stats div b { display: block; font-size: 32px; color: var(--accent); line-height: 1; }
.hero-stats div span { font-size: 13px; color: #8fa3ba; letter-spacing: 1px; }

.btn {
    display: inline-block; padding: 13px 30px; border-radius: 6px; font-weight: 700; font-size: 15px;
    transition: all .25s; border: 1px solid transparent;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 10px 22px rgba(255, 122, 24, .3); }
.btn-ghost { border-color: rgba(255, 255, 255, .45); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); }

/* ------------------ 通用区块 ------------------ */
.section { padding: 74px 0; }
.section-soft { background: var(--bg-soft); }
.sec-head { text-align: center; margin-bottom: 46px; }
.sec-head h2 { font-size: 32px; margin-bottom: 12px; letter-spacing: -.3px; }
.sec-head .sub { color: var(--muted); font-size: 14px; letter-spacing: 3px; text-transform: uppercase; }
.sec-head .line { width: 56px; height: 3px; background: var(--accent); margin: 16px auto 0; }

.sec-head.left { text-align: left; }
.sec-head.left .line { margin-left: 0; }

/* ------------------ 产品分类卡 ------------------ */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cat-card {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
    padding: 28px 24px; position: relative; overflow: hidden; transition: all .3s;
}
.cat-card::before {
    content: ""; position: absolute; top: 0; left: 0; width: 4px; height: 100%; background: var(--accent);
    transform: scaleY(0); transform-origin: top; transition: transform .3s;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: transparent; }
.cat-card:hover::before { transform: scaleY(1); }
.cat-card .idx { font-size: 13px; font-weight: 800; color: var(--accent); letter-spacing: 1px; }
.cat-card h3 { font-size: 19px; margin: 10px 0 8px; }
.cat-card p { color: var(--muted); font-size: 14px; }
.cat-card .more { display: inline-block; margin-top: 14px; font-size: 14px; color: var(--accent); font-weight: 600; }

/* ------------------ 产品卡片 ------------------ */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.prod-card {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
    transition: transform .3s, box-shadow .3s, border-color .3s; display: flex; flex-direction: column;
}
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: transparent; }
.prod-card .thumb { position: relative; padding-top: 74%; background: linear-gradient(135deg, #eef2f7, #e2e8f0); overflow: hidden; }
.prod-card .thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .45s; }
.prod-card:hover .thumb img { transform: scale(1.07); }
.prod-card .tag {
    position: absolute; left: 12px; top: 12px; background: var(--accent); color: #fff;
    font-size: 11px; padding: 3px 10px; border-radius: 3px; font-weight: 600;
}
.prod-card .body { padding: 18px; flex: 1; display: flex; flex-direction: column; }
.prod-card h3 { font-size: 16.5px; margin-bottom: 6px; }
.prod-card .model { font-size: 12.5px; color: var(--cyan); font-weight: 700; margin-bottom: 8px; letter-spacing: .5px; }
.prod-card .desc { font-size: 13.5px; color: var(--muted); flex: 1; }
.prod-card .foot { margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--line); font-size: 13px; color: var(--accent); font-weight: 600; }

/* ------------------ 新闻列表 ------------------ */
.news-list { display: grid; gap: 22px; }
.news-item {
    display: grid; grid-template-columns: 96px 1fr 220px; gap: 24px; align-items: center;
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px;
    transition: all .3s;
}
.news-item:hover { transform: translateX(6px); box-shadow: var(--shadow); border-color: transparent; }
.news-item .date { text-align: center; border-right: 1px solid var(--line); padding-right: 18px; }
.news-item .date b { display: block; font-size: 28px; color: var(--ink); line-height: 1; }
.news-item .date span { font-size: 12px; color: var(--muted); }
.news-item h3 { font-size: 18px; margin-bottom: 6px; }
.news-item:hover h3 { color: var(--accent); }
.news-item p { font-size: 14px; color: var(--muted); }
.news-item .thumb { width: 220px; height: 130px; border-radius: 6px; overflow: hidden; background: var(--bg-soft); }
.news-item .thumb img { width: 100%; height: 100%; object-fit: cover; }

/* ------------------ 案例墙 ------------------ */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case-card { position: relative; border-radius: var(--radius); overflow: hidden; background: var(--ink); }
.case-card .pic { padding-top: 66%; overflow: hidden; }
.case-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.case-card:hover img { transform: scale(1.08); }
.case-card .mask {
    position: absolute; inset: auto 0 0 0; padding: 22px;
    background: linear-gradient(transparent, rgba(9, 18, 30, .92)); color: #fff;
}
.case-card .mask .area { font-size: 12px; color: var(--accent); font-weight: 700; letter-spacing: 1px; }
.case-card .mask h3 { color: #fff; font-size: 18px; margin-top: 4px; }

/* ------------------ 关于区块 ------------------ */
.about-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-box { position: relative; }
.about-box .imgbig { border-radius: var(--radius); overflow: hidden; background: var(--bg-soft); min-height: 320px; }
.about-box .badge {
    position: absolute; right: -18px; bottom: -18px; background: var(--accent); color: #fff;
    padding: 18px 22px; border-radius: var(--radius); text-align: center; box-shadow: var(--shadow-hover);
}
.about-box .badge b { display: block; font-size: 26px; line-height: 1; }
.about-box .badge span { font-size: 12px; }
.about-text h2 { font-size: 30px; margin-bottom: 16px; }
.about-text p { color: var(--muted); margin-bottom: 14px; }
.about-text ul { margin: 18px 0 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.about-text ul li { font-size: 14.5px; padding-left: 22px; position: relative; }
.about-text ul li::before {
    content: "▸"; position: absolute; left: 0; color: var(--accent); font-weight: 700;
}

/* ------------------ 面包屑 ------------------ */
.crumb { background: var(--bg-soft); border-bottom: 1px solid var(--line); }
.crumb ol { display: flex; flex-wrap: wrap; padding: 14px 0; font-size: 13.5px; color: var(--muted); }
.crumb li + li::before { content: "/"; margin: 0 8px; color: #c3ccd8; }
.crumb a:hover { color: var(--accent); }

/* ------------------ 页面标题条 ------------------ */
.page-hero {
    background: var(--ink); color: #fff; padding: 44px 0; position: relative; overflow: hidden;
}
.page-hero::after {
    content: ""; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px);
    background-size: 100% 40px;
}
.page-hero .wrap { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; font-size: 30px; margin-bottom: 8px; }
.page-hero p { color: #9db0c7; font-size: 14px; }

/* ------------------ 内容页 ------------------ */
.content-box { padding: 54px 0; }
.detail-head { text-align: center; margin-bottom: 34px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.detail-head h1 { font-size: 28px; margin-bottom: 12px; }
.detail-head .meta { font-size: 13px; color: var(--muted); }
.detail-head .meta span { margin: 0 12px; }
.detail-body { font-size: 15.5px; line-height: 2; color: #3a4453; }
.detail-body p { margin-bottom: 16px; }
.detail-body img { max-width: 100%; height: auto; margin: 12px 0; border-radius: 6px; }
.detail-body h2, .detail-body h3 { margin: 24px 0 12px; }

.detail-nav { display: flex; justify-content: space-between; margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.detail-nav a:hover { color: var(--accent); }

/* ------------------ 参数表 ------------------ */
.param-table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.param-table th, .param-table td { border: 1px solid var(--line); padding: 12px 16px; font-size: 14.5px; }
.param-table th { background: var(--bg-soft); width: 160px; text-align: left; color: var(--ink); }
.param-table tr:nth-child(even) td { background: #fafbfd; }

/* ------------------ 联系我们 ------------------ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; }
.info-list li { display: flex; gap: 14px; padding: 16px 0; border-bottom: 1px dashed var(--line); }
.info-list li .k { width: 78px; color: var(--muted); font-size: 14px; flex-shrink: 0; }
.info-list li .v { font-size: 15px; color: var(--ink); font-weight: 600; }

.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 14px; margin-bottom: 6px; color: var(--ink); font-weight: 600; }
.form-row label i { color: var(--accent); font-style: normal; }
.form-row input, .form-row textarea {
    width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: 6px;
    font-size: 14.5px; font-family: inherit; transition: border-color .2s, box-shadow .2s; background: #fff;
}
.form-row input:focus, .form-row textarea:focus {
    outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255, 122, 24, .12);
}
.form-row textarea { min-height: 110px; resize: vertical; }
.form-inline { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.captcha-row { display: flex; gap: 12px; align-items: center; }
.captcha-row input { flex: 1; }
.captcha-row img { height: 44px; border: 1px solid var(--line); border-radius: 6px; cursor: pointer; }

/* ------------------ 分类筛选 ------------------ */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; padding: 22px 0 8px; }
.filter-bar a {
    padding: 8px 20px; border: 1px solid var(--line); border-radius: 30px; font-size: 14px;
    background: #fff; color: var(--text); transition: all .25s;
}
.filter-bar a:hover { border-color: var(--accent); color: var(--accent); }
.filter-bar a.on { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ------------------ 分页 ------------------ */
.pagination { display: flex; justify-content: center; align-items: center; gap: 8px; padding: 40px 0 10px; flex-wrap: wrap; }
.pagination a, .pagination span.cur {
    padding: 8px 15px; border: 1px solid var(--line); border-radius: 6px; font-size: 14px; background: #fff;
}
.pagination a:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.pagination span.cur { background: var(--ink); border-color: var(--ink); color: #fff; font-weight: 700; }
.pagination .total { border: 0; color: var(--muted); font-size: 13px; padding-left: 10px; }

/* ------------------ 侧边栏 ------------------ */
.layout-2col { display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: start; }
.side-box { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; margin-bottom: 22px; }
.side-box h3 { font-size: 17px; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--accent); }
.side-list li { padding: 10px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }
.side-list li:last-child { border-bottom: 0; }
.side-list li a:hover { color: var(--accent); }
.side-list .n { display: inline-block; width: 22px; height: 22px; line-height: 22px; text-align: center; background: var(--bg-soft); color: var(--muted); font-size: 12px; margin-right: 8px; border-radius: 3px; }
.side-list li:first-child .n { background: var(--accent); color: #fff; }

/* ------------------ 底部 ------------------ */
.site-footer { background: var(--ink); color: #9db0c7; padding: 56px 0 0; font-size: 14px; }
.foot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr auto; gap: 36px; padding-bottom: 40px; }
.site-footer h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.site-footer ul li { padding: 6px 0; }
.site-footer ul li a:hover { color: var(--accent); }
.site-footer .f-about p { margin-bottom: 14px; line-height: 1.9; }
.foot-contact li { padding: 7px 0; }
.foot-contact b { color: #fff; font-size: 18px; display: block; }
.foot-contact .big-tel { color: var(--accent); font-size: 22px; font-weight: 800; }
/* 底部微信二维码 */
.foot-qr { text-align: center; }
.foot-qr img { width: 120px; height: 120px; object-fit: contain; background: #fff; padding: 6px; border-radius: 8px; display: block; margin: 0 auto; }
/* 联系我们页微信二维码 */
.wx-qr { display: block; width: 132px; height: 132px; object-fit: contain; background: #fff; padding: 6px; border: 1px solid var(--line); border-radius: 8px; }

.foot-bottom {
    border-top: 1px solid rgba(255, 255, 255, .08); padding: 18px 0; font-size: 13px;
    display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}
.foot-bottom a:hover { color: var(--accent); }

/* ------------------ 返回顶部 ------------------ */
.to-top {
    position: fixed; right: 24px; bottom: 24px; width: 44px; height: 44px; border-radius: 8px;
    background: var(--ink); color: #fff; display: flex; align-items: center; justify-content: center;
    cursor: pointer; box-shadow: var(--shadow); opacity: 0; pointer-events: none; transition: opacity .3s; z-index: 800;
}
.to-top.show { opacity: .85; pointer-events: auto; }
.to-top:hover { background: var(--accent); opacity: 1; }

/* ------------------ 空状态 ------------------ */
.empty { text-align: center; padding: 70px 20px; color: var(--muted); }
.empty b { display: block; font-size: 18px; color: var(--ink); margin-bottom: 8px; }

/* ------------------ 响应式：平板 ------------------ */
@media (max-width: 1100px) {
    .prod-grid { grid-template-columns: repeat(3, 1fr); }
    .cat-grid { grid-template-columns: repeat(2, 1fr); }
    .case-grid { grid-template-columns: repeat(2, 1fr); }
    .foot-grid { grid-template-columns: 1fr 1fr; }
    .layout-2col { grid-template-columns: 1fr; }
}

/* ==========================================================================
   手机端呈现（<=900px）
   · 导航改为右侧抽屉 + 遮罩，二级菜单点击展开
   · 底部固定快捷栏：首页 / 产品 / 案例 / 咨询 / 一键拨号
   · 卡片与列表改为手机友好的图文排布
   ========================================================================== */
@media (max-width: 900px) {
    body { padding-bottom: 56px; }

    /* 关键：导航抽屉 .nav 是 .site-header 的子元素，header 的 z-index 会把它
       整个关在自己的层叠上下文里。遮罩 .nav-mask 由 JS 插到 body 下（z-index 999），
       若 header 只有 900，遮罩会盖在抽屉之上，导致菜单点不动。
       此处把 header 提到 1001，抽屉随之位于遮罩之上。 */
    .site-header { z-index: 1001; }

    /* ---------- 头部：紧凑化 ---------- */
    .header-inner { height: 60px; }
    .logo-mark { width: 38px; height: 38px; font-size: 17px; }
    .logo-text b { font-size: 17px; }
    .logo-text small { font-size: 9.5px; letter-spacing: 1.6px; }
    .nav-toggle { display: block; font-size: 24px; }
    .header-cta { display: none; }
    .topbar .tb-right { display: none; }

    /* ---------- 抽屉导航 ---------- */
    .nav {
        display: block;
        position: fixed; top: 0; right: 0; bottom: 0; z-index: 1000;
        width: 82%; max-width: 330px;
        background: #fff; padding: 52px 0 20px;
        transform: translateX(100%); transition: transform .28s ease;
        overflow-y: auto; -webkit-overflow-scrolling: touch;
        box-shadow: -10px 0 34px rgba(13, 27, 42, .2);
    }
    .nav.show { transform: translateX(0); }
    .nav > li { border-bottom: 1px solid var(--line); }
    .nav > li > a { padding: 15px 20px; font-size: 16px; }
    .nav > li > a::after { display: none; }
    .nav-close-li { display: block; border-bottom: 0; }
    .nav-close {
        position: absolute; top: 8px; right: 12px;
        width: 36px; height: 36px; border: 0; border-radius: 50%;
        background: var(--bg-soft); color: var(--ink);
        font-size: 22px; line-height: 1; cursor: pointer;
    }
    .nav-mask { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 999; background: rgba(13, 27, 42, .45); }
    .nav-mask.show { display: block; }

    /* ---------- 二级菜单：点击展开 ---------- */
    .nav-sub-toggle { display: block; right: 8px; top: 8px; }
    .subnav {
        position: static; box-shadow: none; border-top: 0; border-radius: 0;
        display: none; min-width: 0; padding: 0; background: var(--bg-soft);
    }
    .subnav.open { display: block; }
    .subnav a { padding: 12px 20px 12px 34px; font-size: 14.5px; }

    /* ---------- 主视觉 ---------- */
    .hero { min-height: 0; }
    .hero .wrap { padding: 48px 18px; }
    .hero h1 { font-size: 27px; }
    .hero p.lead { font-size: 15px; margin-bottom: 24px; }
    .hero-actions .btn { padding: 12px 22px; font-size: 14.5px; }
    .hero-stats { gap: 22px; margin-top: 30px; }
    .hero-stats div b { font-size: 24px; }
    .hero-stats div span { font-size: 12px; }

    /* ---------- 区块与标题 ---------- */
    .section { padding: 46px 0; }
    .sec-head { margin-bottom: 30px; }
    .sec-head h2 { font-size: 24px; }

    /* ---------- 卡片 ---------- */
    .prod-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .case-grid { grid-template-columns: 1fr; gap: 16px; }
    .cat-card { padding: 20px 16px; }
    .cat-card h3 { font-size: 17px; }

    /* ---------- 新闻列表：左图右文 ---------- */
    .news-item {
        display: grid; grid-template-columns: 96px 1fr;
        grid-template-areas: "thumb body";
        gap: 12px; padding: 14px; align-items: center;
    }
    .news-item:hover { transform: none; }
    .news-item .date { display: none; }
    .news-item > div:not(.thumb):not(.date) { grid-area: body; min-width: 0; }
    .news-item .thumb { grid-area: thumb; display: block; width: 96px; height: 72px; border-radius: 6px; }
    .news-item h3 { font-size: 16px; margin-bottom: 4px; }
    .news-item p { font-size: 13px; }

    /* ---------- 关于 / 联系 ---------- */
    .about-wrap, .contact-grid { grid-template-columns: 1fr; gap: 28px; }
    .about-text h2 { font-size: 24px; }
    .about-box .badge { right: 12px; bottom: -12px; padding: 12px 16px; }

    /* ---------- 内容页 ---------- */
    .page-hero { padding: 28px 0; }
    .page-hero h1 { font-size: 22px; }
    .content-box { padding: 32px 0; }
    .detail-head { margin-bottom: 24px; padding-bottom: 16px; }
    .detail-head h1 { font-size: 21px; }
    .detail-body { font-size: 15.5px; line-height: 1.95; }
    .detail-nav { flex-direction: column; gap: 8px; }

    /* ---------- 表单：字号 >=16px，避免 iOS 聚焦时自动放大 ---------- */
    .form-row input, .form-row textarea { font-size: 16px; }
    .captcha-row img { height: 42px; }

    /* ---------- 底部快捷栏 ---------- */
    .mobile-bar {
        display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 950;
        background: #fff; border-top: 1px solid var(--line);
        box-shadow: 0 -2px 14px rgba(13, 27, 42, .08);
        padding-bottom: env(safe-area-inset-bottom);
    }
    .mobile-bar .mb-i {
        flex: 1; height: 56px; gap: 3px; font-size: 11px; color: var(--muted);
        display: flex; flex-direction: column; align-items: center; justify-content: center;
    }
    /* SVG 图标用 currentColor，颜色随外层 color 自动变化（选中态/电话按钮） */
    .mobile-bar .mb-ico { display: flex; align-items: center; justify-content: center; line-height: 1; color: var(--ink); }
    .mobile-bar .mb-ico svg { width: 22px; height: 22px; display: block; }
    .mobile-bar .mb-i.on, .mobile-bar .mb-i.on .mb-ico { color: var(--accent); }
    .mobile-bar .mb-call { flex: 1.3; background: var(--accent); color: #fff; }
    .mobile-bar .mb-call .mb-ico { color: #fff; }

    .to-top { bottom: 72px; right: 16px; }
}

/* ------------------ 小屏手机（<=560px） ------------------ */
@media (max-width: 560px) {
    .wrap { padding: 0 14px; }
    .prod-grid { grid-template-columns: 1fr; }
    .cat-grid { grid-template-columns: 1fr; }
    .foot-grid { grid-template-columns: 1fr; gap: 24px; }

    .topbar { font-size: 12px; }
    .topbar .tb-left span { margin-right: 12px; }
    .topbar .tb-left span:last-child { display: none; }

    .hero .wrap { padding: 38px 14px; }
    .hero h1 { font-size: 23px; }
    .hero-actions { gap: 10px; }
    .hero-actions .btn { flex: 1 1 auto; text-align: center; padding: 12px 14px; }
    .hero-stats { gap: 16px; margin-top: 22px; }
    .hero-stats div b { font-size: 21px; }

    .section { padding: 38px 0; }
    .sec-head { margin-bottom: 24px; }
    .sec-head h2 { font-size: 21px; }

    .prod-card .body { padding: 15px; }
    .case-card .mask { padding: 16px; }
    .news-item { grid-template-columns: 84px 1fr; padding: 12px; }
    .news-item .thumb { width: 84px; height: 64px; }

    .form-inline { grid-template-columns: 1fr; }
    .about-text ul { grid-template-columns: 1fr; }
    .info-list li { flex-direction: column; gap: 4px; }
    .info-list li .k { width: auto; }

    .crumb ol { font-size: 12.5px; }
    .filter-bar { padding: 16px 0 6px; }
    .filter-bar a { padding: 7px 14px; font-size: 13px; }
    .pagination a, .pagination span.cur { padding: 7px 12px; }
    .detail-head h1 { font-size: 19px; }
    .detail-body { font-size: 15px; }

    /* 参数表：改为「标签 / 值」卡片式堆叠，手机上更好读 */
    .param-table, .param-table tbody { display: block; width: 100%; }
    .param-table tr {
        display: block; border: 1px solid var(--line);
        border-radius: 8px; margin-bottom: 10px; overflow: hidden;
    }
    .param-table th, .param-table td {
        display: block; width: auto; border: 0; padding: 8px 14px; font-size: 14px;
    }
    .param-table th {
        background: var(--bg-soft); color: var(--muted);
        font-size: 12.5px; font-weight: 600; padding-bottom: 2px;
    }
    .param-table td { padding-top: 2px; }
    .param-table tr:nth-child(even) td { background: transparent; }

    .to-top { right: 14px; bottom: 68px; width: 40px; height: 40px; }
    .foot-bottom { justify-content: center; text-align: center; }
}