/* ========================================================================
   重庆川仪精密机械有限公司官网 —— 前台样式（新站模板设计）
   视觉语言：亮蓝 #0c7df5 · 白底卡片 · 圆角阴影 · 现代企业风
   内容：川仪精密业务数据（老站采集）
   ======================================================================== */

:root {
    --primary: #0c7df5;
    --primary-dark: #0a63c4;
    --primary-light: #4da3ff;
    --primary-ghost: rgba(12, 125, 245, .12);
    --navy: #0e2a4e;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e4eaf1;
    --gray-300: #cfd9e3;
    --gray-400: #9fb0c2;
    --gray-500: #6b7f95;
    --gray-600: #55697f;
    --gray-700: #3c4f64;
    --gray-900: #16283c;
    --dark: #0b1b30;
    --transition: all .28s ease;
    --shadow-sm: 0 2px 8px rgba(16, 42, 82, .08);
    --shadow: 0 8px 24px rgba(16, 42, 82, .1);
    --shadow-lg: 0 16px 48px rgba(16, 42, 82, .16);
    --radius: 10px;
    --radius-lg: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: 92px; }
body {
    font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
    font-size: 15px; line-height: 1.7; color: var(--gray-900);
    background: #fff; overflow-wrap: break-word; word-wrap: break-word;
    -webkit-tap-highlight-color: transparent;
}
img, video { max-width: 100%; height: auto; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul, ol { list-style: none; }
table { max-width: 100%; border-collapse: collapse; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.35; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.clear { clear: both; }

/* ============ 顶部导航 ============ */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 900;
    color: #fff; background: linear-gradient(180deg, rgba(8, 24, 48, .55), rgba(8, 24, 48, 0));
    transition: var(--transition);
}
body.is-inner .header { position: static; background: #fff; color: var(--gray-900); box-shadow: var(--shadow-sm); }
.header.is-scrolled { background: #fff; color: var(--gray-900); box-shadow: 0 6px 24px rgba(16, 42, 82, .12); }
.nav-inner {
    max-width: 1320px; margin: 0 auto; padding: 0 24px;
    height: 84px; display: flex; align-items: center; gap: 28px;
}
body.is-inner .header .nav-inner, .header.is-scrolled .nav-inner { height: 72px; }

.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-mark { width: 46px; height: 46px; display: flex; align-items: center; justify-content: center; }
.logo-mark img { max-height: 46px; width: auto; }
.logo-mark svg { width: 40px; height: 40px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.25; }
.logo-text strong { font-size: 20px; letter-spacing: 1px; }
.logo-text em { font-style: normal; font-size: 11px; letter-spacing: 2.4px; opacity: .78; text-transform: uppercase; }

.main-nav { margin-left: auto; min-width: 0; }
.main-nav ul { display: flex; align-items: center; gap: 6px; }
.main-nav a {
    position: relative; display: block; padding: 10px 16px; white-space: nowrap;
    font-size: 15.5px; font-weight: 600; letter-spacing: .5px; opacity: .92;
}
.main-nav a::after {
    content: ''; position: absolute; left: 16px; right: 16px; bottom: 2px;
    height: 2px; border-radius: 2px; background: currentColor;
    transform: scaleX(0); transform-origin: center; transition: transform .25s ease;
}
.main-nav a:hover { opacity: 1; }
.main-nav a:hover::after, .main-nav li.active a::after { transform: scaleX(1); }
.main-nav li.active a { opacity: 1; color: var(--primary); }
body:not(.is-inner) .header.is-scrolled .main-nav li.active a { color: var(--primary); }

.nav-right { display: flex; align-items: center; gap: 18px; flex-shrink: 0; }
.nav-lang { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; }
.nav-lang-mobile { display: none; }
.nav-lang i { opacity: .4; font-style: normal; }
.nav-lang a { opacity: .68; padding: 5px 9px; border-radius: 999px; border: 1px solid transparent; }
.nav-lang a:hover { opacity: 1; }
.nav-lang a.is-active { opacity: 1; border-color: currentColor; font-weight: 700; }

/* 亮底导航（内页/滚动后）时，白色 logo 反色为深色，避免隐身 */
body.is-inner .header .logo-mark img,
.header.is-scrolled .logo-mark img { filter: brightness(0); }

.header-phone { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.hp-icon {
    width: 38px; height: 38px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    background: var(--primary); color: #fff;
}
.hp-num { font-size: 18px; font-weight: 700; letter-spacing: .5px; }

.nav-toggle { display: none; width: 40px; height: 40px; flex-direction: column; justify-content: center; align-items: center; gap: 5px; background: none; border: 0; color: inherit; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: currentColor; transition: var(--transition); }

/* ============ Banner 轮播 ============ */
.banner { position: relative; height: 88vh; min-height: 520px; overflow: hidden; background: var(--dark); }
.banner-slide {
    position: absolute; inset: 0; background-size: cover; background-position: center;
    opacity: 0; transition: opacity 1s ease;
}
.banner-slide.is-active { opacity: 1; }
.banner-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(7, 22, 44, .02) 45%, rgba(7, 22, 44, .55) 100%);
}
.banner-content { position: relative; z-index: 2; max-width: 1200px; margin: 0 auto; padding: 0 24px 58px; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; align-items: flex-start; color: #fff; }
.bc-en { font-size: 15px; letter-spacing: 6px; text-transform: uppercase; opacity: .8; margin-bottom: 18px; }
.bc-title { font-size: 52px; letter-spacing: 2px; line-height: 1.25; text-shadow: 0 4px 24px rgba(0,0,0,.35); }
.bc-desc { margin-top: 18px; font-size: 17px; opacity: .92; letter-spacing: 1px; max-width: 720px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.bc-actions { margin-top: 36px; display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 46px; padding: 0 30px; border-radius: 999px;
    font-size: 15.5px; font-weight: 600; letter-spacing: 1px;
    transition: var(--transition); border: 0; cursor: pointer;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 24px rgba(12, 125, 245, .35); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); color: #fff; }
.btn-ghost { border: 1.5px solid rgba(255,255,255,.75); color: #fff; background: rgba(255,255,255,.08); }
.btn-ghost:hover { background: rgba(255,255,255,.18); color: #fff; }
.btn-outline { border: 1.5px solid var(--primary); color: var(--primary); background: #fff; }
.btn-outline:hover { background: var(--primary); color: #fff; }

.banner-dots { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 3; }
.bd-item { width: 32px; height: 4px; border-radius: 4px; background: rgba(255,255,255,.4); cursor: pointer; transition: var(--transition); }
.bd-item.is-active { background: #fff; }
.banner-arrow {
    position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
    width: 48px; height: 48px; border-radius: 50%; border: 0; cursor: pointer;
    background: rgba(255,255,255,.14); color: #fff;
    display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.banner-arrow:hover { background: var(--primary); }
.banner-prev { left: 28px; }
.banner-next { right: 28px; }

/* ============ 主打标语 + 三大特性 ============ */
.idx-intro { padding: 92px 0 80px; background: linear-gradient(180deg, #fff, var(--gray-50)); }
.ii-title { text-align: center; font-size: 36px; color: var(--gray-900); letter-spacing: 1px; }
.ii-sub { text-align: center; margin-top: 12px; color: var(--gray-500); font-size: 16px; letter-spacing: 2px; }
.feat-grid { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.feat-card {
    position: relative; background: #fff; border-radius: var(--radius-lg);
    padding: 40px 34px 34px; box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100);
    overflow: hidden; transition: var(--transition);
}
.feat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.ft-ico {
    width: 62px; height: 62px; border-radius: 16px; color: var(--primary);
    background: var(--primary-ghost); display: flex; align-items: center; justify-content: center;
}
.ft-ico svg { width: 32px; height: 32px; }
.ft-big { margin-top: 22px; font-size: 46px; font-weight: 800; color: var(--gray-900); font-family: Impact, "Arial Black", "Microsoft YaHei", sans-serif; letter-spacing: 1px; }
.ft-big small { font-size: 20px; font-weight: 700; margin-left: 4px; color: var(--primary); }
.ft-name { margin-top: 4px; font-size: 18px; font-weight: 700; color: var(--gray-700); }
.ft-desc { margin-top: 12px; font-size: 14px; color: var(--gray-500); line-height: 1.8; }
.ft-no { position: absolute; right: 18px; top: 10px; font-size: 58px; font-weight: 800; color: var(--gray-100); font-family: Impact, sans-serif; line-height: 1; }

/* ============ 通用标题 / READ MORE ============ */
.sec-title { font-size: 32px; color: var(--gray-900); letter-spacing: 1px; }
.sec-title span { display: block; margin-top: 8px; font-size: 13px; font-weight: 500; letter-spacing: 4px; text-transform: uppercase; color: var(--gray-400); }
.sec-title.is-center { text-align: center; }
.show-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; }
.read-more {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 13px; font-weight: 700; letter-spacing: 3px; color: var(--primary);
    padding-bottom: 4px; border-bottom: 2px solid currentColor;
}
.read-more:hover { color: var(--primary-dark); }
.read-more.is-center-link { font-size: 15px; }

/* ============ 设备能力三联展示（首页） ============ */
.idx-show { padding: 80px 0 90px; background: #fff; }
.show-stage {
    margin-top: 44px; display: grid; grid-template-columns: 240px 1fr 340px;
    border: 1px solid var(--gray-200); border-radius: var(--radius-lg); overflow: hidden; background: #fff;
}
.show-cats { border-right: 1px solid var(--gray-200); display: flex; flex-direction: column; }
.show-cat {
    flex: 1; display: flex; align-items: center; gap: 14px;
    padding: 18px 22px; border-bottom: 1px solid var(--gray-100); transition: var(--transition);
}
.show-cat:last-child { border-bottom: 0; }
.show-cat .sc-num { font-size: 13px; font-weight: 800; color: var(--gray-400); font-family: Impact, sans-serif; }
.show-cat .sc-label { font-size: 15.5px; font-weight: 600; color: var(--gray-700); }
.show-cat:hover { background: var(--gray-50); }
.show-cat.is-active { background: var(--primary); }
.show-cat.is-active .sc-num, .show-cat.is-active .sc-label { color: #fff; }
.show-pics { position: relative; min-height: 420px; background: var(--gray-100); }
.show-pic {
    position: absolute; inset: 0; background-size: cover; background-position: center;
    opacity: 0; transition: opacity .6s ease;
}
.show-pic.is-active { opacity: 1; }
.show-panels { position: relative; border-left: 1px solid var(--gray-200); padding: 36px 32px; display: flex; flex-direction: column; }
.show-panel { display: none; }
.show-panel.is-active { display: block; }
.show-panel h3 { font-size: 22px; color: var(--gray-900); }
.show-panel p { margin-top: 14px; font-size: 14.5px; color: var(--gray-600); line-height: 1.9; text-align: justify; }
.show-link { display: inline-block; margin-top: 22px; font-size: 14px; font-weight: 700; color: var(--primary); }
.show-link::after { content: ' →'; }
.show-dots { margin-top: auto; padding-top: 24px; display: flex; gap: 8px; }
.sd-dot { width: 22px; height: 4px; border-radius: 4px; background: var(--gray-200); cursor: pointer; transition: var(--transition); }
.sd-dot.is-active { background: var(--primary); }

/* ============ 产品中心（首页） ============ */
.idx-products { padding: 80px 0 90px; background: linear-gradient(180deg, var(--gray-50), #fff); }
.idx-prod-grid { margin-top: 44px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.idx-prod-card {
    background: #fff; border-radius: var(--radius-lg); overflow: hidden;
    border: 1px solid var(--gray-100); box-shadow: var(--shadow-sm); transition: var(--transition);
    display: flex; flex-direction: column;
}
.idx-prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.ipc-img { height: 230px; background-size: cover; background-position: center; background-color: #fff; }
.ipc-body { padding: 22px 24px 26px; }
.ipc-body h3 { font-size: 18px; color: var(--gray-900); }
.ipc-body p { margin-top: 10px; font-size: 14px; color: var(--gray-500); line-height: 1.8; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ipc-more { display: inline-block; margin-top: 16px; font-size: 13.5px; font-weight: 700; color: var(--primary); }

/* ============ 关于我们（首页） ============ */
.idx-about { position: relative; padding: 96px 0; background: var(--dark); color: #fff; overflow: hidden; }
.ia-watermark {
    position: absolute; left: 50%; top: 28px; transform: translateX(-50%);
    font-size: 130px; font-weight: 800; letter-spacing: 24px;
    color: rgba(255,255,255,.05); font-family: Impact, sans-serif; pointer-events: none; white-space: nowrap;
}
.ia-grid { position: relative; display: grid; grid-template-columns: 1.05fr 1fr; gap: 70px; align-items: center; }
.ia-title { display: flex; align-items: baseline; gap: 14px; }
.ia-title b { font-size: 46px; color: rgba(255,255,255,.28); font-family: Impact, sans-serif; letter-spacing: 2px; }
.ia-title span { font-size: 30px; font-weight: 700; letter-spacing: 2px; }
.ia-left p { margin-top: 22px; font-size: 15px; color: rgba(255,255,255,.82); line-height: 1.95; text-align: justify; }
.btn-blue {
    display: inline-flex; align-items: center; min-height: 46px; padding: 0 30px;
    margin-top: 30px; border-radius: 999px; background: var(--primary); color: #fff;
    font-size: 15px; font-weight: 600; letter-spacing: 1px;
}
.btn-blue:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); }
.ia-stats { margin-top: 44px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.ia-stat { text-align: left; }
.ias-num { font-size: 40px; font-weight: 800; font-family: Impact, sans-serif; letter-spacing: 1px; }
.ias-num i { font-style: normal; font-size: 17px; font-weight: 600; margin-left: 4px; color: var(--primary-light); }
.ias-label { margin-top: 4px; font-size: 13.5px; color: rgba(255,255,255,.65); letter-spacing: 1px; }
.ia-img {
    height: 480px; border-radius: var(--radius-lg);
    background-size: cover; background-position: center;
    box-shadow: 0 30px 70px rgba(0,0,0,.45);
    border: 1px solid rgba(255,255,255,.12);
}

/* ============ 服务流程 ============ */
.idx-process { padding: 80px 0 90px; background: #fff; }
.proc-grid { margin-top: 50px; display: grid; grid-template-columns: repeat(8, 1fr); gap: 18px; }
.proc-item { text-align: center; transition: var(--transition); }
.proc-item:hover .proc-ring { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-4px); }
.proc-ring {
    width: 76px; height: 76px; margin: 0 auto; border-radius: 50%;
    border: 1.5px solid var(--gray-200); color: var(--primary);
    display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.proc-name { margin-top: 14px; font-size: 14.5px; font-weight: 600; color: var(--gray-700); }

/* ============ 新闻资讯（首页） ============ */
.idx-news { padding: 80px 0 90px; background: linear-gradient(180deg, var(--gray-50), #fff); }
.news-tabs { display: flex; gap: 10px; }
.nt-btn {
    border: 1px solid var(--gray-200); background: #fff; color: var(--gray-600);
    padding: 8px 20px; border-radius: 999px; font-size: 14px; cursor: pointer; transition: var(--transition);
}
.nt-btn:hover { border-color: var(--primary); color: var(--primary); }
.nt-btn.is-active { background: var(--primary); border-color: var(--primary); color: #fff; }
.idx-news-grid { margin-top: 44px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.idx-news-card {
    background: #fff; border-radius: var(--radius-lg); overflow: hidden;
    border: 1px solid var(--gray-100); box-shadow: var(--shadow-sm); transition: var(--transition);
    display: flex; flex-direction: column;
}
.idx-news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.idx-news-card.is-hide { display: none; }
.inc-img { height: 190px; background-size: cover; background-position: center; }
.inc-body { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.inc-body h3 { font-size: 16.5px; color: var(--gray-900); line-height: 1.55; }
.inc-body p { margin-top: 10px; font-size: 13.5px; color: var(--gray-500); line-height: 1.8; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.inc-date { margin-top: auto; padding-top: 16px; font-size: 12.5px; color: var(--gray-400); letter-spacing: 1px; }
.idx-news-more { margin-top: 40px; text-align: center; }

/* ============ 内页公共：页头 / 面包屑 ============ */
.page-header {
    padding: 150px 24px 64px;
    background: linear-gradient(120deg, var(--dark) 0%, #10315e 60%, #0c4d9e 100%);
    color: #fff; text-align: center;
}
.ph-inner { max-width: 1200px; margin: 0 auto; }
.page-header h1 { font-size: 40px; letter-spacing: 3px; }
.page-header p { margin-top: 10px; font-size: 14px; letter-spacing: 5px; text-transform: uppercase; opacity: .6; }
.breadcrumb { background: #fff; border-bottom: 1px solid var(--gray-100); }
.breadcrumb .container { display: flex; align-items: center; flex-wrap: wrap; min-height: 52px; font-size: 13.5px; color: var(--gray-500); }
.breadcrumb a { color: var(--gray-500); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { margin: 0 10px; color: var(--gray-300); }
.breadcrumb .here { color: var(--primary); font-weight: 600; }

/* ============ 内页布局：侧栏 + 内容 ============ */
.section { padding: 60px 0 80px; }
.page-wrap { display: grid; grid-template-columns: 270px 1fr; gap: 28px; align-items: start; padding: 44px 0 80px; }
.sidebar { position: sticky; top: 100px; display: flex; flex-direction: column; gap: 20px; }
.sb-title { background: var(--dark); color: #fff; border-radius: var(--radius) var(--radius) 0 0; padding: 22px 24px; }
.sb-title h3 { font-size: 19px; letter-spacing: 2px; }
.sb-title p { margin-top: 4px; font-size: 11px; letter-spacing: 3px; text-transform: uppercase; opacity: .55; }
.sb-list { background: #fff; border: 1px solid var(--gray-100); border-radius: 0 0 var(--radius) var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.sb-list li { border-bottom: 1px solid var(--gray-100); }
.sb-list li:last-child { border-bottom: 0; }
.sb-list a { display: block; padding: 14px 24px; font-size: 14.5px; color: var(--gray-700); position: relative; }
.sb-list a::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: transparent; transition: var(--transition); }
.sb-list li:hover a, .sb-list li.active a { color: var(--primary); background: var(--gray-50); }
.sb-list li.active a::before { background: var(--primary); }
.sb-side { background: linear-gradient(150deg, var(--dark), #10315e); color: #fff; border-radius: var(--radius); padding: 26px 24px; text-align: center; }
.sbs-icon { width: 52px; height: 52px; margin: 0 auto; border-radius: 50%; background: rgba(255,255,255,.12); display: flex; align-items: center; justify-content: center; color: var(--primary-light); }
.sbs-label { margin-top: 14px; font-size: 10.5px; letter-spacing: 3px; opacity: .55; }
.sbs-phone { margin-top: 6px; font-size: 22px; font-weight: 800; letter-spacing: 1px; }
.sbs-contact { margin-top: 4px; font-size: 13px; opacity: .8; }
.sbs-link { display: inline-block; margin-top: 18px; padding: 9px 26px; border-radius: 999px; background: var(--primary); color: #fff; font-size: 13.5px; font-weight: 600; }
.sbs-link:hover { background: var(--primary-dark); color: #fff; }

.content-card {
    background: #fff; border: 1px solid var(--gray-100); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm); padding: 34px 36px; min-width: 0;
}
.sec-head { margin-bottom: 26px; }
.sec-head h2 { font-size: 24px; color: var(--gray-900); }
.sec-head p { margin-top: 8px; font-size: 13.5px; color: var(--gray-500); }

/* ============ 产品网格 / 卡片 ============ */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.product-card {
    background: #fff; border: 1px solid var(--gray-100); border-radius: var(--radius);
    overflow: hidden; transition: var(--transition); display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.pc-img { height: 240px; background-size: cover; background-position: center; background-color: var(--gray-50); }
.pc-info { padding: 18px 20px 20px; }
.pc-title { font-size: 16.5px; font-weight: 700; color: var(--gray-900); line-height: 1.5; }
.pc-desc { margin-top: 8px; font-size: 13.5px; color: var(--gray-500); line-height: 1.75; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.pc-link { display: inline-block; margin-top: 12px; font-size: 13px; font-weight: 700; color: var(--primary); }

/* ============ 产品详情 ============ */
.pd-top { display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; align-items: start; }
.pd-gallery { background: var(--gray-50); border: 1px solid var(--gray-100); border-radius: var(--radius); padding: 18px; }
.pd-hero { height: 380px; background-size: contain; background-position: center; background-repeat: no-repeat; }
.pd-thumbs { margin-top: 14px; display: flex; gap: 10px; }
.pd-thumb { width: 74px; height: 58px; border-radius: 6px; background-size: cover; background-position: center; border: 2px solid transparent; cursor: pointer; opacity: .75; }
.pd-thumb.is-active { border-color: var(--primary); opacity: 1; }
.pd-cat { display: inline-block; padding: 4px 14px; border-radius: 999px; background: var(--primary-ghost); color: var(--primary); font-size: 13px; font-weight: 600; }
.pd-name { margin-top: 14px; font-size: 27px; color: var(--gray-900); line-height: 1.4; }
.pd-brief { margin-top: 14px; font-size: 14.5px; color: var(--gray-600); line-height: 1.9; text-align: justify; }
.pd-specs { margin-top: 22px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pd-spec { background: var(--gray-50); border: 1px solid var(--gray-100); border-radius: 8px; padding: 12px 16px; }
.pd-spec span { display: block; font-size: 12px; color: var(--gray-400); letter-spacing: 1px; }
.pd-spec b { display: block; margin-top: 3px; font-size: 14.5px; color: var(--gray-900); }
.pd-price { margin-top: 22px; display: flex; align-items: baseline; gap: 14px; }
.pd-price span { font-size: 13.5px; color: var(--gray-500); }
.pd-price b { font-size: 26px; color: #e02020; }
.pd-buy { margin-top: 22px; width: 100%; }
.pd-sec { margin-top: 44px; font-size: 21px; color: var(--gray-900); padding-left: 14px; border-left: 4px solid var(--primary); }
.pd-content { margin-top: 20px; font-size: 15px; color: var(--gray-700); line-height: 2; }
.pd-content h3 { margin-top: 22px; font-size: 17px; color: var(--gray-900); }
.pd-content ul { margin-top: 10px; padding-left: 4px; }
.pd-content li { position: relative; margin-top: 8px; padding-left: 20px; }
.pd-content li::before { content: ''; position: absolute; left: 0; top: 12px; width: 7px; height: 7px; border-radius: 50%; background: var(--primary); }
.pd-table { margin-top: 20px; width: 100%; font-size: 14.5px; }
.pd-table th, .pd-table td { border: 1px solid var(--gray-200); padding: 12px 16px; text-align: left; }
.pd-table th { width: 180px; background: var(--gray-50); color: var(--gray-700); }
.pd-hotline {
    margin-top: 44px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
    background: linear-gradient(120deg, var(--dark), #10315e); border-radius: var(--radius);
    padding: 24px 30px; color: #fff;
}
.pd-hotline-icon { width: 54px; height: 54px; border-radius: 50%; background: rgba(255,255,255,.12); display: flex; align-items: center; justify-content: center; color: var(--primary-light); }
.pd-hotline-text span { font-size: 12.5px; letter-spacing: 2px; opacity: .7; }
.pd-hotline-text strong { display: block; font-size: 24px; letter-spacing: 1px; }
.pd-hotline-text small { display: block; margin-top: 2px; font-size: 12.5px; opacity: .75; }
.pd-hotline .btn-outline { margin-left: auto; background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.pd-hotline .btn-outline:hover { background: var(--primary); border-color: var(--primary); }

.related-section { margin-top: 60px; }
.related-grid { margin-top: 30px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card { background: #fff; border: 1px solid var(--gray-100); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.related-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.rc-img { height: 180px; background-size: cover; background-position: center; background-color: var(--gray-50); }
.rc-body { padding: 16px 18px 20px; }
.rc-body h3 { font-size: 15.5px; color: var(--gray-900); }
.rc-body p { margin-top: 8px; font-size: 13px; color: var(--gray-500); line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ============ 应用领域 ============ */
.app-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.app-card {
    background: #fff; border: 1px solid var(--gray-100); border-radius: var(--radius-lg);
    transition: var(--transition); scroll-margin-top: 110px;
}
.app-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.ac-svg {
    width: 64px; height: 64px; border-radius: 16px; color: var(--ic, var(--primary));
    background: color-mix(in srgb, var(--ic, var(--primary)) 12%, #fff);
    display: flex; align-items: center; justify-content: center;
}
.ac-title { margin-top: 20px; font-size: 18px; font-weight: 700; color: var(--gray-900); }
.ac-desc { margin-top: 10px; font-size: 14px; color: var(--gray-500); line-height: 1.8; }
.app-cta {
    margin-top: 44px; display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
    background: linear-gradient(120deg, var(--dark), #10315e); color: #fff;
    border-radius: var(--radius-lg); padding: 30px 36px;
}
.app-cta-icon { width: 58px; height: 58px; border-radius: 50%; background: rgba(255,255,255,.12); display: flex; align-items: center; justify-content: center; color: var(--primary-light); }
.app-cta-text h3 { font-size: 19px; }
.app-cta-text p { margin-top: 6px; font-size: 13.5px; opacity: .8; }
.app-cta .btn-primary { margin-left: auto; }

/* ============ 设备能力详情 / 新闻详情 ============ */
.cd-title { font-size: 26px; color: var(--gray-900); }
.cd-meta { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 18px; font-size: 13.5px; color: var(--gray-500); }
.cd-meta-item { display: inline-flex; align-items: center; gap: 6px; }
.cd-cover { margin-top: 24px; position: relative; height: 340px; border-radius: var(--radius); overflow: hidden; }
.cd-cover-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.cd-cover-shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8,20,40,.1), rgba(8,20,40,.55)); }
.cd-cover-text { position: absolute; left: 30px; bottom: 26px; color: #fff; }
.cd-cover-tag { font-size: 11px; letter-spacing: 4px; opacity: .8; }
.cd-cover-text h2 { margin-top: 6px; font-size: 24px; }
.cd-body { margin-top: 28px; font-size: 15px; color: var(--gray-700); line-height: 2; }
.cd-body h3 { margin-top: 24px; font-size: 17px; color: var(--gray-900); }
.cd-body ul { margin-top: 10px; }
.cd-body li { position: relative; margin-top: 8px; padding-left: 20px; }
.cd-body li::before { content: ''; position: absolute; left: 0; top: 12px; width: 7px; height: 7px; border-radius: 50%; background: var(--primary); }
.cd-actions { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }
.nd-title { font-size: 25px; color: var(--gray-900); line-height: 1.5; }
.nd-cover { margin-top: 24px; height: 360px; border-radius: var(--radius); background-size: cover; background-position: center; }
.nd-meta { margin-top: 20px; display: flex; align-items: center; flex-wrap: wrap; gap: 18px; font-size: 13.5px; color: var(--gray-500); }
.nd-meta-item { display: inline-flex; align-items: center; gap: 6px; }
.nd-tag { padding: 4px 14px; border-radius: 999px; background: var(--primary-ghost); color: var(--primary); font-size: 12.5px; font-weight: 600; }
.nd-body { margin-top: 26px; font-size: 15px; color: var(--gray-700); line-height: 2; }
.nd-body p { margin-top: 14px; }
.nd-nav { margin-top: 40px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.nd-nav-btn {
    display: flex; align-items: center; gap: 14px; padding: 18px 20px;
    border: 1px solid var(--gray-200); border-radius: var(--radius); transition: var(--transition); min-width: 0;
}
.nd-nav-btn:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.nd-nav-btn.is-disabled { opacity: .45; pointer-events: none; }
.nd-nav-arrow { font-size: 20px; color: var(--primary); font-weight: 700; }
.nd-nav-text { min-width: 0; }
.nd-nav-text i { display: block; font-style: normal; font-size: 12px; color: var(--gray-400); }
.nd-nav-text b { display: block; font-size: 14px; color: var(--gray-900); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: 600; }
.nd-nav-right { text-align: right; }
.nd-nav-right .nd-nav-text b { direction: rtl; }
.nd-actions { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }

/* ============ 新闻列表 ============ */
.news-list-wrap { display: flex; flex-direction: column; }
.news-row { display: flex; gap: 24px; padding: 24px 4px; border-bottom: 1px solid var(--gray-100); transition: var(--transition); }
.news-row:hover { background: var(--gray-50); }
.nr-img { width: 250px; height: 165px; flex-shrink: 0; border-radius: var(--radius); background-size: cover; background-position: center; }
.nr-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.nr-top { display: flex; align-items: flex-start; gap: 18px; }
.nr-date {
    flex-shrink: 0; text-align: center; background: var(--gray-50); border: 1px solid var(--gray-100);
    border-radius: 8px; padding: 8px 12px; font-size: 20px; font-weight: 800; color: var(--primary); line-height: 1.2;
}
.nr-date small { display: block; font-size: 11.5px; font-weight: 500; color: var(--gray-400); letter-spacing: 1px; }
.nr-top h3 { font-size: 18px; color: var(--gray-900); line-height: 1.55; }
.news-row:hover .nr-top h3 { color: var(--primary); }
.nr-summary { margin-top: 12px; font-size: 14px; color: var(--gray-500); line-height: 1.85; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.nr-meta { margin-top: auto; padding-top: 14px; display: flex; align-items: center; justify-content: space-between; }
.nr-tag { padding: 3px 12px; border-radius: 999px; background: var(--primary-ghost); color: var(--primary); font-size: 12px; font-weight: 600; }
.nr-more { font-size: 13px; color: var(--gray-400); }
.news-row:hover .nr-more { color: var(--primary); }
.news-filter-tip { margin-bottom: 22px; padding: 12px 18px; border-radius: var(--radius); background: var(--primary-ghost); color: var(--gray-700); font-size: 14px; }
.news-filter-tip strong { color: var(--primary); }
.nf-clear { margin-left: 10px; color: var(--gray-400); }
.nf-clear:hover { color: #e02020; }

/* ============ 联系我们 ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 28px; align-items: start; }
.contact-left .sec-head, .contact-right .sec-head { margin-bottom: 22px; }
.contact-cards { display: flex; flex-direction: column; gap: 14px; }
.ci-card { display: flex; gap: 16px; align-items: flex-start; background: #fff; border: 1px solid var(--gray-100); border-radius: var(--radius); padding: 18px 20px; transition: var(--transition); }
.ci-card:hover { box-shadow: var(--shadow-sm); }
.ci-ico { width: 48px; height: 48px; flex-shrink: 0; border-radius: 12px; background: var(--primary-ghost); color: var(--primary); display: flex; align-items: center; justify-content: center; }
.ci-label { font-size: 12.5px; color: var(--gray-400); letter-spacing: 1px; }
.ci-val { margin-top: 3px; font-size: 15.5px; font-weight: 600; color: var(--gray-900); }
.ci-phone { font-size: 19px; color: var(--primary); }
.ci-addr { font-weight: 500; line-height: 1.7; }
.ci-tag { display: inline-block; margin-left: 8px; padding: 2px 10px; border-radius: 999px; background: var(--gray-100); color: var(--gray-500); font-size: 11.5px; font-weight: 500; }
.map-card { margin-top: 20px; background: #fff; border: 1px solid var(--gray-100); border-radius: var(--radius); overflow: hidden; }
.map-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--gray-100); }
.map-head h3 { font-size: 15.5px; color: var(--gray-900); }
.map-addr { font-size: 12px; color: var(--gray-400); }
.map-body { position: relative; height: 220px; background: linear-gradient(150deg, #eaf2fb, #dcebf9); overflow: hidden; }
.map-grid {
    position: absolute; inset: 0;
    background-image: linear-gradient(rgba(12,125,245,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(12,125,245,.08) 1px, transparent 1px);
    background-size: 34px 34px;
}
.map-pin { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); }
.map-pulse { position: absolute; left: 50%; top: 50%; width: 70px; height: 70px; margin: -35px 0 0 -35px; border-radius: 50%; background: rgba(12,125,245,.25); animation: mapPulse 2.2s ease-out infinite; }
.map-pulse-2 { animation-delay: 1.1s; }
@keyframes mapPulse { 0% { transform: scale(.4); opacity: .9; } 100% { transform: scale(1.6); opacity: 0; } }
.map-dot { position: absolute; left: 50%; top: 50%; width: 16px; height: 16px; margin: -8px 0 0 -8px; border-radius: 50%; background: var(--primary); border: 3px solid #fff; box-shadow: var(--shadow); }
.map-marker {
    position: absolute; left: 50%; top: 18px; transform: translateX(-50%);
    display: inline-flex; align-items: center; gap: 6px; background: #fff;
    border-radius: 999px; padding: 6px 14px; font-size: 12.5px; font-weight: 600;
    color: var(--gray-900); box-shadow: var(--shadow-sm); white-space: nowrap;
}
.map-marker svg { color: var(--primary); }
.message-card { background: #fff; border: 1px solid var(--gray-100); border-radius: var(--radius-lg); padding: 26px 28px; box-shadow: var(--shadow-sm); }
.msg-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 13.5px; color: var(--gray-700); margin-bottom: 8px; font-weight: 600; }
.form-label .req { color: #e02020; margin-right: 2px; }
.form-control {
    width: 100%; border: 1px solid var(--gray-300); border-radius: 8px;
    padding: 12px 14px; font-size: 14px; color: var(--gray-900);
    outline: none; transition: var(--transition); font-family: inherit; background: #fff;
}
.form-control:hover { border-color: var(--primary-light); }
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-ghost); }
textarea.form-control { min-height: 120px; resize: vertical; }
.form-actions { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 6px; }
.form-submit {
    display: inline-flex; align-items: center; gap: 8px; min-height: 46px; padding: 0 32px;
    border: 0; border-radius: 999px; background: var(--primary); color: #fff;
    font-size: 15px; font-weight: 600; letter-spacing: 1px; cursor: pointer; transition: var(--transition);
}
.form-submit:hover { background: var(--primary-dark); transform: translateY(-2px); }
.form-tip { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--gray-400); }
.flash-msg { padding: 12px 16px; border-radius: 8px; font-size: 14px; }
.flash-msg.success { background: #e8f6ef; color: #1d7a4f; border: 1px solid #bfe6d2; }
.flash-msg.error { background: #fdecec; color: #c0392b; border: 1px solid #f5c6c6; }
.promise-card { margin-top: 24px; background: #fff; border: 1px solid var(--gray-100); border-radius: var(--radius-lg); padding: 24px 26px; }
.promise-head { display: flex; align-items: baseline; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid var(--gray-100); }
.promise-head strong { font-size: 16.5px; color: var(--gray-900); }
.promise-head span { font-size: 11px; letter-spacing: 3px; text-transform: uppercase; color: var(--gray-400); }
.promise-list { margin-top: 8px; }
.promise-list li { display: flex; gap: 14px; align-items: flex-start; padding: 14px 0; border-bottom: 1px dashed var(--gray-100); }
.promise-list li:last-child { border-bottom: 0; }
.pm-ico { width: 42px; height: 42px; flex-shrink: 0; border-radius: 10px; background: var(--primary-ghost); color: var(--primary); display: flex; align-items: center; justify-content: center; }
.pm-title { font-size: 14.5px; font-weight: 700; color: var(--gray-900); }
.pm-desc { margin-top: 2px; font-size: 12.5px; color: var(--gray-500); }

/* ============ 关于我们页 ============ */
.about-article { font-size: 15px; color: var(--gray-700); line-height: 2; }
.about-article > p { margin-top: 14px; text-align: justify; }
.hl { color: var(--gray-900); font-weight: 700; }
.hl-primary { color: var(--primary); font-weight: 700; }
.about-highlights { margin-top: 30px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.ah-item { text-align: center; background: var(--gray-50); border: 1px solid var(--gray-100); border-radius: var(--radius); padding: 20px 12px; }
.ah-num { font-size: 32px; font-weight: 800; color: var(--primary); font-family: Impact, "Arial Black", sans-serif; }
.ah-num small { font-size: 14px; font-weight: 600; margin-left: 3px; }
.ah-cap { margin-top: 4px; font-size: 13px; color: var(--gray-500); }
.about-h3 { margin-top: 36px; font-size: 19px; color: var(--gray-900); display: flex; align-items: center; gap: 10px; }
.about-h3 .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--primary); display: inline-block; }
.about-values { margin-top: 18px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.val-item { background: #fff; border: 1px solid var(--gray-100); border-radius: var(--radius); padding: 18px 16px; text-align: center; transition: var(--transition); }
.val-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.val-no { display: block; font-size: 13px; font-weight: 800; color: var(--gray-300); font-family: Impact, sans-serif; }
.val-name { display: block; margin-top: 6px; font-size: 18px; font-weight: 700; color: var(--gray-900); }
.val-desc { display: block; margin-top: 2px; font-size: 10.5px; letter-spacing: 2.5px; color: var(--gray-400); }
.cert-grid { margin-top: 18px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.cert-item {
    display: flex; flex-direction: column; align-items: center; gap: 10px;
    border: 1px solid var(--gray-100); border-radius: var(--radius); padding: 20px 12px;
    color: var(--primary); font-size: 13.5px; font-weight: 600; color: var(--gray-700); text-align: center; transition: var(--transition);
}
.cert-item:hover { box-shadow: var(--shadow-sm); }
.cert-item svg { color: var(--primary); }

/* ============ 404 ============ */
.error-page-wrap { position: relative; min-height: 76vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 60px 20px; overflow: hidden; background: radial-gradient(1000px 500px at 50% -10%, #eaf3fe, #fff); }
.error-code { display: flex; align-items: center; gap: 6px; font-size: 110px; font-weight: 800; color: var(--primary); font-family: Impact, sans-serif; }
.ec-orbit { position: relative; width: 110px; height: 110px; display: flex; align-items: center; justify-content: center; }
.ec-orbit::before { content: ''; position: absolute; inset: 0; border: 2px dashed var(--primary-light); border-radius: 50%; animation: orbitSpin 9s linear infinite; }
@keyframes orbitSpin { to { transform: rotate(360deg); } }
.ec-orbit .ec-num { font-size: 44px; }
.error-h1 { margin-top: 18px; font-size: 30px; color: var(--gray-900); }
.error-msg { margin-top: 12px; font-size: 15px; color: var(--gray-500); line-height: 2; }
.error-actions { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.error-decor .ed-circle { position: absolute; border-radius: 50%; background: var(--primary-ghost); }
.ed-c1 { width: 160px; height: 160px; left: 6%; top: 12%; }
.ed-c2 { width: 90px; height: 90px; right: 10%; top: 22%; background: rgba(12,125,245,.16); }
.ed-c3 { width: 50px; height: 50px; right: 22%; bottom: 16%; }

/* ============ 深色联系区（页脚上方） ============ */
.footer-contact { background: var(--dark); color: #fff; padding: 80px 0 70px; }
.fc-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 60px; }
.fc-head { display: flex; align-items: baseline; gap: 14px; padding-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,.12); }
.fc-head h2 { font-size: 26px; letter-spacing: 2px; }
.fc-head span { font-size: 11.5px; letter-spacing: 4px; text-transform: uppercase; color: rgba(255,255,255,.45); }
.fc-name { margin-top: 24px; font-size: 20px; font-weight: 700; letter-spacing: 1px; }
.fc-body { margin-top: 20px; display: flex; gap: 26px; flex-wrap: wrap; }
.fc-qr { text-align: center; }
.fc-qr img { width: 128px; height: 128px; border-radius: 10px; background: #fff; padding: 6px; }
.fc-qr span { display: block; margin-top: 8px; font-size: 12px; color: rgba(255,255,255,.6); letter-spacing: 1px; }
.fc-list { flex: 1; min-width: 240px; }
.fc-list li { display: flex; gap: 10px; align-items: flex-start; margin-top: 16px; font-size: 14px; color: rgba(255,255,255,.82); line-height: 1.8; }
.fc-list svg { flex-shrink: 0; margin-top: 5px; color: var(--primary-light); }
.fc-list a { color: #fff; font-weight: 600; }
.fc-form input, .fc-form textarea {
    width: 100%; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.18);
    border-radius: 8px; padding: 12px 16px; color: #fff; font-size: 16px; outline: none;
    transition: var(--transition); font-family: inherit;
}
.fc-form input::placeholder, .fc-form textarea::placeholder { color: rgba(255,255,255,.45); }
.fc-form input:focus, .fc-form textarea:focus { border-color: var(--primary-light); background: rgba(255,255,255,.12); }
.fc-form textarea { margin-top: 14px; min-height: 96px; resize: vertical; }
.fc-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.fc-submit {
    margin-top: 16px; display: inline-flex; align-items: center; justify-content: center;
    min-height: 46px; padding: 0 36px; border: 0; border-radius: 999px;
    background: var(--primary); color: #fff; font-size: 15px; font-weight: 700;
    letter-spacing: 2px; cursor: pointer; transition: var(--transition);
}
.fc-submit:hover { background: var(--primary-dark); }

/* ============ 移动端底部悬浮 / 拨号兜底 ============ */
.mobile-dock { display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 800; background: #fff; box-shadow: 0 -6px 24px rgba(16,42,82,.14); }
.md-dial, .md-msg { flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 50px; font-size: 14.5px; font-weight: 700; }
.md-dial { background: var(--primary); color: #fff; }
.md-msg { color: var(--gray-900); }
.dial-fallback { position: fixed; inset: 0; z-index: 950; background: rgba(8, 20, 40, .6); display: none; align-items: center; justify-content: center; padding: 24px; }
.dial-fallback.is-show { display: flex; }
.df-card { width: 100%; max-width: 340px; background: #fff; border-radius: var(--radius-lg); padding: 34px 28px; text-align: center; position: relative; }
.df-close { position: absolute; right: 14px; top: 10px; font-size: 26px; color: var(--gray-400); cursor: pointer; line-height: 1; }
.df-icon { width: 70px; height: 70px; margin: 0 auto; border-radius: 50%; background: var(--primary-ghost); color: var(--primary); display: flex; align-items: center; justify-content: center; }
.df-card h3 { margin-top: 16px; font-size: 16px; color: var(--gray-500); letter-spacing: 2px; }
.df-num { margin-top: 8px; font-size: 30px; font-weight: 800; color: var(--gray-900); letter-spacing: 1px; }
.df-hint { margin-top: 12px; font-size: 12.5px; color: var(--gray-500); line-height: 1.8; }
.df-actions { margin-top: 22px; display: flex; gap: 12px; justify-content: center; }
.df-call { flex: 1; min-height: 46px; border: 0; border-radius: 999px; background: var(--primary); color: #fff; font-size: 15px; font-weight: 700; cursor: pointer; }
.df-copy { flex: 1; min-height: 46px; border: 1.5px solid var(--gray-300); border-radius: 999px; background: #fff; color: var(--gray-700); font-size: 15px; cursor: pointer; }

/* ============ 版权条 ============ */
.footer-bar { background: #07121f; color: rgba(255,255,255,.55); }
.fb-inner { max-width: 1200px; margin: 0 auto; padding: 22px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.fb-links { display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: 13px; }
.fb-links a { color: rgba(255,255,255,.55); }
.fb-links a:hover { color: #fff; }
.fb-left p { margin-top: 8px; font-size: 12.5px; line-height: 1.9; }
.fb-left p a { color: rgba(255,255,255,.55); }
.fb-left p a:hover { color: #fff; }
.fb-right { display: flex; gap: 10px; }
.fb-social { width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(255,255,255,.2); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,.65); }
.fb-social:hover { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ============ 右侧竖向悬浮栏 ============ */
.side-float { position: fixed; right: 18px; top: 300px; z-index: 850; display: flex; flex-direction: column; gap: 8px; }
.sf-item {
    position: relative; width: 52px; height: 52px; border-radius: 12px;
    background: #fff; color: var(--primary); border: 1px solid var(--gray-200);
    display: flex; align-items: center; justify-content: center; cursor: pointer; transition: var(--transition);
}
.sf-item:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.sf-pop {
    position: absolute; right: 64px; top: 50%; transform: translateY(-50%);
    background: var(--dark); color: #fff; border-radius: 8px; padding: 10px 16px;
    font-size: 14px; white-space: nowrap; opacity: 0; visibility: hidden; transition: var(--transition);
}
.sf-pop small { display: block; font-size: 11px; color: rgba(255,255,255,.55); margin-top: 2px; }
.sf-item:hover .sf-pop { opacity: 1; visibility: visible; }
.sf-pop-wx { padding: 10px; text-align: center; }
.sf-pop-wx img { width: 120px; height: 120px; border-radius: 6px; background: #fff; padding: 4px; }
.sf-pop-wx small { margin-top: 6px; }
.sf-mobile-only { display: none; }
.sf-top { opacity: 0; visibility: hidden; pointer-events: none; }
.sf-top.show { opacity: 1; visibility: visible; pointer-events: auto; }

/* ============ 滚动渐入 ============ */
.fade-in { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.fade-in.is-visible { opacity: 1; transform: none; }

/* ============ 响应式 ============ */
@media (min-width: 1440px) {
    .container { max-width: 1280px; }
    .bc-title { font-size: 58px; }
}
@media (max-width: 1360px) {
    .nav-inner { gap: 20px; }
}
@media (max-width: 1200px) {
    .main-nav a { padding: 10px 11px; font-size: 14.5px; }
    .nav-inner { gap: 14px; }
    .hp-num { font-size: 16px; }
}
@media (max-width: 1100px) {
    .idx-prod-grid { grid-template-columns: repeat(3, 1fr); }
    .proc-grid { grid-template-columns: repeat(4, 1fr); gap: 26px; }
    .show-stage { grid-template-columns: 200px 1fr 320px; }
    .ia-grid { grid-template-columns: 1fr; gap: 50px; }
    .ia-img { height: 400px; }
    .idx-news-grid { grid-template-columns: repeat(2, 1fr); }
    .app-grid { grid-template-columns: repeat(2, 1fr); }
    .related-grid { grid-template-columns: repeat(3, 1fr); }
    .page-wrap { grid-template-columns: 240px 1fr; }
}
@media (max-width: 920px) {
    /* 语言切换常驻顶栏：小屏只隐藏电话，不再隐藏中/EN */
    .header-phone { display: none; }
    .show-stage { grid-template-columns: 1fr; }
    .show-cats { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--gray-200); }
    .show-cat { flex: 0 0 auto; border-bottom: 0; border-right: 1px solid var(--gray-100); }
    .show-pics { min-height: 300px; }
    .show-panels { border-left: 0; border-top: 1px solid var(--gray-200); }
}
@media (max-width: 860px) {
    .container { padding: 0 16px; }
    body.is-inner .header { position: sticky; }
    .main-nav {
        position: fixed; top: 72px; left: 0; right: 0;
        background: #fff; box-shadow: var(--shadow-lg);
        max-height: 0; overflow: hidden; transition: max-height .35s ease; z-index: 899;
    }
    .main-nav.open { max-height: 620px; }
    .main-nav ul { flex-direction: column; align-items: stretch; padding: 10px 0; gap: 0; }
    .main-nav a { padding: 14px 26px; color: var(--gray-900); font-size: 15px; }
    .main-nav a::after { display: none; }
    .main-nav li.active a { color: var(--primary); background: var(--gray-50); }
    .nav-toggle { display: flex; flex-shrink: 0; flex-basis: 44px; width: 44px; height: 44px; }
    /* 语言切换常驻顶栏（右侧），仅隐藏电话 */
    .nav-right { display: flex; margin-left: auto; gap: 10px; }
    .header-phone { display: none; }
    .header .nav-inner, body.is-inner .header .nav-inner { height: 72px; padding: 0 16px; }
    .header, body.is-inner .header { background: #fff; color: var(--gray-900); }
    .header .logo-mark img { filter: brightness(0); }
    .header.is-scrolled { position: fixed; }
    body:not(.is-inner) .header { background: rgba(255,255,255,.96); }
    body:not(.is-inner) .header.is-scrolled { background: #fff; }

    .banner { height: 420px; min-height: 0; }
    .banner-content { padding: 0 24px; }
    .bc-en { font-size: 12.5px; letter-spacing: 4px; margin-bottom: 12px; }
    .bc-title { font-size: 30px; }
    .bc-desc { font-size: 14px; margin-top: 12px; }
    .bc-actions { margin-top: 22px; gap: 12px; }
    .bc-actions .btn { padding: 0 22px; min-height: 42px; font-size: 14px; }
    .banner-arrow { display: none; }
    .page-header { padding: 60px 20px 44px; }
    .page-header h1 { font-size: 30px; }

    .idx-intro { padding: 60px 0 56px; }
    .ii-title { font-size: 27px; }
    .feat-grid { grid-template-columns: 1fr; gap: 18px; margin-top: 36px; }
    .idx-show, .idx-products, .idx-news, .idx-process { padding: 56px 0 60px; }
    .sec-title { font-size: 26px; }
    .idx-prod-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .ipc-img { height: 180px; }
    .proc-grid { grid-template-columns: repeat(4, 1fr); gap: 20px; }
    .proc-ring { width: 62px; height: 62px; }
    .idx-about { padding: 60px 0; }
    .ia-watermark { font-size: 64px; letter-spacing: 10px; }
    .ia-title b { font-size: 32px; }
    .ia-title span { font-size: 24px; }
    .ia-stats { grid-template-columns: repeat(2, 1fr); }
    .ia-img { height: 280px; }
    .idx-news-grid { grid-template-columns: 1fr; }
    .inc-img { height: 200px; }

    .page-wrap { grid-template-columns: 1fr; padding: 26px 0 60px; }
    .sidebar { position: static; }
    .sb-list { display: flex; flex-wrap: wrap; }
    .sb-list li { border-bottom: 0; flex: 1 1 auto; }
    .sb-list a { padding: 11px 14px; font-size: 13.5px; white-space: nowrap; }
    .sb-list a::before { display: none; }
    .sb-side { display: none; }
    .content-card { padding: 24px 18px; }

    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .pc-img { height: 170px; }
    .pd-top { grid-template-columns: 1fr; gap: 26px; }
    .pd-hero { height: 260px; }
    .pd-name { font-size: 22px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .app-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .app-card { padding: 26px 20px !important; }
    .app-cta .btn-primary { margin-left: 0; }

    .news-row { flex-direction: column; gap: 14px; }
    .nr-img { width: 100%; height: 190px; }
    .nr-top { gap: 12px; }
    .nd-cover { height: 210px; }
    .cd-cover { height: 220px; }
    .nd-nav { grid-template-columns: 1fr; }
    .about-highlights { grid-template-columns: repeat(2, 1fr); }
    .about-values { grid-template-columns: repeat(2, 1fr); }
    .cert-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }
    .msg-form .form-row { grid-template-columns: 1fr; }
    .fc-grid { grid-template-columns: 1fr; gap: 44px; }
    .fc-row { grid-template-columns: 1fr; }

    .mobile-dock { display: flex; }
    .side-float { display: none; }
    body { padding-bottom: 50px; }
    .footer-contact, .footer-bar { padding-bottom: 84px; }
    .footer-bar { padding-bottom: 0; margin-bottom: 50px; }
}
@media (max-width: 600px) {
    .banner { height: 380px; }
    .bc-title { font-size: 26px; }
    .bc-desc { display: none; }
    .ii-title { font-size: 23px; }
    .ii-sub { font-size: 13.5px; }
    .sec-title { font-size: 23px; }
    .idx-prod-grid { grid-template-columns: 1fr; }
    .proc-grid { grid-template-columns: repeat(3, 1fr); }
    .product-grid { grid-template-columns: 1fr; }
    .app-grid { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .page-header h1 { font-size: 25px; }
    .page-header p { letter-spacing: 3px; }
    .ia-img { height: 220px; }
    .about-highlights { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .ah-num { font-size: 26px; }
}
@media (max-width: 480px) {
    .container { padding: 0 14px; }
    .bc-title { font-size: 22px; letter-spacing: 1px; }
    .banner { height: 340px; }
    .feat-card { padding: 30px 24px 26px; }
    .ft-big { font-size: 36px; }
    .ft-no { font-size: 44px; }
    .pd-specs { grid-template-columns: 1fr; }
    .about-values { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .cert-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .map-body { height: 180px; }
    .message-card { padding: 20px 16px; }
    .fc-qr { margin: 0 auto; }
    .error-code { font-size: 76px; }
    .error-h1 { font-size: 24px; }
}
@media (max-width: 380px) {
    .bc-title { font-size: 19px; }
    .ii-title { font-size: 20px; }
    .sec-title { font-size: 20px; }
    .main-nav a { padding: 13px 20px; }
    .logo-text strong { font-size: 17px; }
}
@media (hover: none) {
    .feat-card:hover, .idx-prod-card:hover, .product-card:hover, .related-card:hover,
    .idx-news-card:hover, .val-item:hover { transform: none; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
    .fade-in { opacity: 1; transform: none; }
}