@charset "utf-8";
/* ==========================================================================
   泽亚辐射防护 · 官网主题样式
   风格：工业防护蓝 + 金属灰 + 警示橙（适用于防辐射材料 / 铅门厂家）
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  --c-primary: #0b4c8c;
  --c-primary-d: #073a6c;
  --c-primary-l: #1668be;
  --c-primary-05: rgba(11, 76, 140, .05);
  --c-primary-10: rgba(11, 76, 140, .1);
  --c-accent: #f08519;
  --c-accent-d: #d86f0a;
  --c-steel: #5b6b7c;
  --c-ink: #16202c;
  --c-title: #1b2836;
  --c-body: #55636f;
  --c-muted: #6b7785;
  --c-line: #e4e9ee;
  --c-bg: #ffffff;
  --c-soft: #f4f7fa;
  --c-dark: #12202f;
  --c-dark-2: #0d1926;

  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 10px rgba(16, 42, 67, .06);
  --shadow: 0 6px 24px rgba(16, 42, 67, .09);
  --shadow-lg: 0 16px 44px rgba(16, 42, 67, .14);
  --container: 1280px;
  --header-h: 82px;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- 2. 基础重置 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-body);
  background: var(--c-bg);
  overflow-x: hidden;
}
img { max-width: 100%; border: 0; vertical-align: middle; }
a { color: inherit; text-decoration: none; transition: color .28s var(--ease); }
a:hover { color: var(--c-primary); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5 { color: var(--c-title); font-weight: 700; line-height: 1.35; }
input, textarea, select, button { font-family: inherit; font-size: inherit; outline: none; }
table { border-collapse: collapse; }
::selection { background: var(--c-primary); color: #fff; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.clearfix::after { content: ""; display: block; clear: both; }

/* ---------- 3. 顶部信息条 ---------- */
.topbar {
  background: var(--c-dark);
  color: rgba(255, 255, 255, .62);
  font-size: 13px;
  line-height: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; }
.topbar__welcome { display: flex; align-items: center; gap: 8px; }
.topbar__welcome svg { width: 14px; height: 14px; fill: var(--c-accent); flex: none; }
.topbar__links { display: flex; align-items: center; gap: 18px; }
.topbar__links a:hover { color: #fff; }
.topbar__tel { color: #fff; font-weight: 600; }
.topbar__tel em { font-style: normal; color: var(--c-accent); }

/* ---------- 4. 页头 / 导航 ---------- */
.header {
  position: sticky; top: 0; z-index: 900;
  background: rgba(255, 255, 255, .97);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-line);
  box-shadow: 0 1px 0 rgba(16, 42, 67, .04);
}
.header .container { display: flex; align-items: center; height: var(--header-h); gap: 18px; }

.logo { display: flex; align-items: center; gap: 12px; flex: none; }
.logo__img { max-height: 56px; width: auto; }
.logo__mark {
  width: 46px; height: 46px; flex: none;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(140deg, var(--c-primary-l), var(--c-primary-d));
  border-radius: var(--radius);
  box-shadow: 0 4px 14px rgba(11, 76, 140, .3);
}
.logo__mark svg { width: 28px; height: 28px; fill: #fff; }
.logo__text strong {
  display: block; font-size: 21px; color: var(--c-title);
  letter-spacing: .5px; line-height: 1.2; font-weight: 800;
}
.logo__text span {
  display: block; font-size: 11px; color: var(--c-muted);
  letter-spacing: 2.4px; text-transform: uppercase; margin-top: 2px;
}

.nav { margin-left: auto; }
.nav__list { display: flex; align-items: center; flex-wrap: nowrap; }
.nav__item { position: relative; }
.nav__item > a {
  display: block; padding: 0 13px; line-height: var(--header-h);
  font-family: var(--font);
  font-size: 15px; letter-spacing: .5px; color: var(--c-title); font-weight: 500; position: relative; white-space: nowrap;
}
.nav__item > a::after {
  content: ""; position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%);
  width: 0; height: 3px; background: var(--c-accent); border-radius: 2px;
  transition: width .3s var(--ease);
}
.nav__item:hover > a, .nav__item.active > a { color: var(--c-primary); }
.nav__item:hover > a::after, .nav__item.active > a::after { width: 20px; }

.nav__sub {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(10px);
  min-width: 180px; background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 8px 0; border-top: 3px solid var(--c-primary);
  opacity: 0; visibility: hidden; transition: all .3s var(--ease);
}
.nav__item:hover .nav__sub { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav__sub:empty { display: none; }
.nav__sub a {
  display: block; padding: 9px 20px; font-size: 14.5px; color: var(--c-body);
  font-family: var(--font); white-space: nowrap;
}
.nav__sub a:hover { background: var(--c-primary-05); color: var(--c-primary); padding-left: 25px; }

/* 锚点定位时避开 sticky 页头 */
#cert { scroll-margin-top: calc(var(--header-h) + 10px); }

.header__cta { display: flex; align-items: center; gap: 10px; flex: none; padding: 6px 14px; background: rgba(240,133,25,.12); border-radius: 30px; margin-left: 4px; }
.header__cta svg { width: 34px; height: 34px; fill: var(--c-accent); flex: none; }
.header__cta div { line-height: 1.3; }
.header__cta small { display: block; font-size: 12px; color: var(--c-muted); }
.header__cta b { font-size: 24px; color: var(--c-accent); font-weight: 800; letter-spacing: .5px; white-space: nowrap; }

.nav-toggle {
  display: none; width: 42px; height: 42px; margin-left: auto; background: none; border: 0;
  cursor: pointer; flex-direction: column; justify-content: center; gap: 5px; align-items: center;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--c-title); transition: .3s; }
.nav-toggle.on span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.on span:nth-child(2) { opacity: 0; }
.nav-toggle.on span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 5. 首页主视觉 ---------- */
.hero {
  position: relative; overflow: hidden;
  background: #082e52;
  min-height: 600px; display: flex; align-items: center;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(0deg, rgba(8, 28, 52, .55) 0%, transparent 38%);
}
.hero::after { content: none; }
.hero__slides { position: absolute; inset: 0; z-index: 0; }
.hero__slide {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1.1s var(--ease), transform 7s linear;
  transform: scale(1.06);
}
.hero__slide.on { opacity: 1; transform: scale(1); }
.hero .container {
  position: relative; z-index: 3;
  max-width: 760px; margin: 44px auto 44px 0;
  padding: 40px 24px;
}
.hero__seo {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
  z-index: -1; pointer-events: none;
}

.hero__tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px 6px 10px; border-radius: 30px;
  background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .22);
  color: #fff; font-size: 13.5px; letter-spacing: .6px; margin-bottom: 26px;
}
.hero__tag svg { width: 16px; height: 16px; fill: var(--c-accent); }
.hero h1 {
  color: #fff; font-size: 44px; line-height: 1.24; letter-spacing: 1px;
  font-weight: 800; max-width: 100%; text-shadow: 0 2px 16px rgba(0, 0, 0, .35);
}
.hero h1 em { font-style: normal; color: #ffc477; }
.hero__desc {
  color: rgba(255, 255, 255, .88); font-size: 16px; line-height: 1.85;
  max-width: 100%; margin-top: 18px;
}
.hero__meta { display: flex; flex-wrap: wrap; gap: 12px 34px; margin-top: 28px; }
.hero__meta li {
  display: flex; align-items: center; gap: 8px;
  color: #fff; font-size: 15px; font-weight: 500;
}
.hero__meta svg { width: 18px; height: 18px; fill: #ffc477; flex: none; }
.hero__btns { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  height: 50px; padding: 0 32px; border-radius: var(--radius);
  font-size: 16px; font-weight: 600; border: 0; cursor: pointer;
  transition: all .3s var(--ease); white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; fill: currentColor; }
.btn--primary { background: var(--c-accent); color: #fff; box-shadow: 0 8px 22px rgba(240, 133, 25, .32); }
.btn--primary:hover { background: var(--c-accent-d); color: #fff; transform: translateY(-2px); box-shadow: 0 12px 28px rgba(240, 133, 25, .4); }
.btn--ghost { background: rgba(255, 255, 255, .1); color: #fff; border: 1px solid rgba(255, 255, 255, .38); }
.btn--ghost:hover { background: #fff; color: var(--c-primary); border-color: #fff; }
.btn--blue { background: var(--c-primary); color: #fff; }
.btn--blue:hover { background: var(--c-primary-d); color: #fff; transform: translateY(-2px); }
.btn--line { background: transparent; color: var(--c-primary); border: 1px solid var(--c-primary); }
.btn--line:hover { background: var(--c-primary); color: #fff; }

.hero__dots { position: absolute; left: 0; right: 0; bottom: 26px; z-index: 4; display: flex; justify-content: center; gap: 9px; }
.hero__dots i {
  width: 26px; height: 4px; border-radius: 3px; background: rgba(255, 255, 255, .35);
  cursor: pointer; transition: .3s;
}
.hero__dots i.on { background: var(--c-accent); width: 40px; }

/* ---------- 6. 快捷检索条 ---------- */
.quickbar { background: var(--c-soft); border-bottom: 1px solid var(--c-line); padding: 18px 0; }
.quickbar .container { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.quickbar__hot { display: flex; align-items: center; gap: 12px; flex: 1; min-width: 260px; flex-wrap: wrap; }
.quickbar__hot > strong { color: var(--c-title); font-size: 14.5px; flex: none; }
.quickbar__hot a {
  font-size: 14px; color: var(--c-body); padding: 3px 12px;
  background: #fff; border: 1px solid var(--c-line); border-radius: 20px;
}
.quickbar__hot a:hover { border-color: var(--c-primary); color: var(--c-primary); }
.searchbox { display: flex; height: 40px; flex: none; }
.searchbox input {
  width: 220px; height: 40px; padding: 0 14px; border: 1px solid var(--c-line);
  border-right: 0; border-radius: var(--radius) 0 0 var(--radius); background: #fff; color: var(--c-title);
}
.searchbox input:focus { border-color: var(--c-primary); }
.searchbox button {
  width: 52px; background: var(--c-primary); border-radius: 0 var(--radius) var(--radius) 0;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
}
.searchbox button svg { width: 17px; height: 17px; fill: #fff; }
.searchbox button:hover { background: var(--c-primary-d); }

/* ---------- 7. 区块通用 ---------- */
.section { padding: 84px 0; }
.section--soft { background: var(--c-soft); }
.section--dark {
  background: linear-gradient(135deg, #073a6b 0%, #0b4c8c 55%, #0d5596 100%);
  position: relative; overflow: hidden;
}
.section--dark::before {
  content: ""; position: absolute; right: -90px; top: -90px; width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(240,133,25,.18), transparent 70%);
  border-radius: 50%; pointer-events: none;
}
.section--dark { background: var(--c-dark); }

.sec-head { text-align: center; margin-bottom: 48px; }
.sec-head__en {
  display: block; font-size: 13px; letter-spacing: 4px; text-transform: uppercase;
  color: var(--c-primary); opacity: .55; font-weight: 700; margin-bottom: 10px;
}
.sec-head h2 { font-size: 36px; letter-spacing: 1px; position: relative; display: inline-block; }
.sec-head h2::after {
  content: ""; display: block; width: 46px; height: 4px; border-radius: 2px;
  background: var(--c-accent); margin: 16px auto 0;
}
.sec-head p { color: var(--c-muted); font-size: 15.5px; margin-top: 14px; }
.sec-head--light .sec-head__en { color: #7fb6ea; opacity: .8; }
.sec-head--light h2 { color: #fff; }
.sec-head--light p { color: rgba(255, 255, 255, .6); }

.sec-head--row {
  display: flex; align-items: flex-end; justify-content: space-between;
  text-align: left; gap: 20px; flex-wrap: wrap;
}
.sec-head--row h2::after { margin: 14px 0 0; }
.more-link {
  display: inline-flex; align-items: center; gap: 7px; font-size: 14.5px;
  color: var(--c-primary); font-weight: 600; flex: none;
}
.more-link svg { width: 14px; height: 14px; fill: currentColor; transition: transform .3s var(--ease); }
.more-link:hover svg { transform: translateX(4px); }

/* ---------- 8. 产品卡片 ---------- */
.cate-chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 36px; }
.cate-chips a {
  padding: 9px 24px; border: 1px solid var(--c-line); background: #fff;
  border-radius: 30px; font-size: 15px; color: var(--c-body); font-weight: 500;
}
.cate-chips a:hover, .cate-chips a.on { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }

.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.prod-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  overflow: hidden; transition: all .38s var(--ease); display: flex; flex-direction: column;
}
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.prod-card__fig {
  position: relative; display: block; padding-top: 76%;
  background: linear-gradient(135deg, #e8eef5, #d3dee9);
  background-size: cover; background-position: center; overflow: hidden;
}
.prod-card__fig::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(7, 40, 70, .3), transparent 55%);
  opacity: 0; transition: opacity .38s var(--ease);
}
.prod-card:hover .prod-card__fig::after { opacity: 1; }
.prod-card__ph {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
}
.prod-card__ph svg { width: 54px; height: 54px; fill: #fff; opacity: .5; }
.prod-card__tag {
  position: absolute; left: 12px; top: 12px; z-index: 2;
  background: rgba(11, 76, 140, .9); color: #fff; font-size: 12px;
  padding: 3px 11px; border-radius: 3px; letter-spacing: .3px;
}
.prod-card__body { padding: 18px 20px 22px; flex: 1; display: flex; flex-direction: column; }
.prod-card__body h3 {
  font-size: 17px; font-weight: 600; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.prod-card:hover .prod-card__body h3 { color: var(--c-primary); }
.prod-card__body p {
  font-size: 13.5px; color: var(--c-muted); line-height: 1.7; margin-top: 9px; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.prod-card__more {
  margin-top: 14px; padding-top: 13px; border-top: 1px dashed var(--c-line);
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13.5px; color: var(--c-muted);
}
.prod-card__more span { color: var(--c-primary); font-weight: 600; }
.prod-card__more svg { width: 13px; height: 13px; fill: var(--c-primary); }

/* ---------- 9. 优势 ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; position: relative; z-index: 1; }
.adv-item {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius-lg);
  padding: 40px 26px 34px; text-align: left; transition: all .38s var(--ease); position: relative; overflow: hidden;
}
.adv-item::before {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
  background: var(--c-accent); transform: scaleX(0); transition: transform .38s var(--ease);
}
.adv-item:hover { transform: translateY(-6px); background: rgba(255,255,255,.1); border-color: rgba(240,133,25,.5); }
.adv-item:hover::before { transform: scaleX(1); }
.adv-item__no {
  position: absolute; right: 16px; top: 8px; font-size: 46px; font-weight: 800; font-style: italic;
  color: rgba(255,255,255,.08); line-height: 1; letter-spacing: 1px;
}
.adv-item__ico {
  width: 64px; height: 64px; margin-bottom: 18px; border-radius: 14px;
  background: rgba(240,133,25,.15); display: flex; align-items: center; justify-content: center;
  transition: all .38s var(--ease);
}
.adv-item__ico svg { width: 32px; height: 32px; fill: var(--c-accent); transition: fill .38s var(--ease); }
.adv-item:hover .adv-item__ico { background: var(--c-accent); }
.adv-item:hover .adv-item__ico svg { fill: #fff; }
.adv-item h3 { font-size: 19px; margin-bottom: 10px; color: #fff; }
.adv-item p { font-size: 14px; color: rgba(255,255,255,.7); line-height: 1.85; }
.adv-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 46px;
  padding-top: 34px; border-top: 1px solid rgba(255,255,255,.14); position: relative; z-index: 1;
}
.adv-stat { text-align: center; }
.adv-stat b { display: block; font-size: 42px; font-weight: 800; color: #fff; line-height: 1; }
.adv-stat b small { font-size: 20px; color: var(--c-accent); font-weight: 700; margin-left: 2px; }
.adv-stat span { display: block; margin-top: 10px; font-size: 14px; color: rgba(255,255,255,.65); letter-spacing: .5px; }

/* 核心优势：紧凑版，降低整块高度 */
.section--adv { padding: 52px 0; }
.section--adv .adv-grid { gap: 18px; }
.section--adv .adv-item { padding: 26px 22px 22px; }
.section--adv .adv-item__no { font-size: 38px; top: 6px; }
.section--adv .adv-item__ico { width: 52px; height: 52px; margin-bottom: 14px; border-radius: 12px; }
.section--adv .adv-item__ico svg { width: 26px; height: 26px; }
.section--adv .adv-item h3 { font-size: 17px; margin-bottom: 8px; }
.section--adv .adv-item p { font-size: 13px; line-height: 1.72; }
.section--adv .adv-stats { margin-top: 28px; padding-top: 22px; gap: 18px; }
.section--adv .adv-stat b { font-size: 34px; }
.section--adv .adv-stat b small { font-size: 17px; }
.section--adv .adv-stat span { margin-top: 6px; font-size: 13px; }

/* ---------- 10. 关于 ---------- */
.about-wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 58px; align-items: center; }
.about-fig { position: relative; }
.about-fig__main {
  border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg);
  padding-top: 68%; background: linear-gradient(135deg, #0b4c8c, #12659f);
  background-size: cover; background-position: center; position: relative;
}
.about-fig__main::after {
  content: ""; position: absolute; inset: 0;
  background-image: repeating-linear-gradient(135deg, rgba(255, 255, 255, .05) 0 2px, transparent 2px 14px);
}
.about-fig__badge {
  position: absolute; right: -14px; bottom: -14px; z-index: 3;
  background: var(--c-accent); color: #fff; border-radius: var(--radius-lg);
  padding: 20px 26px; text-align: center; box-shadow: 0 12px 30px rgba(240, 133, 25, .34);
}
.about-fig__badge b { display: block; font-size: 34px; line-height: 1.1; font-weight: 800; }
.about-fig__badge span { font-size: 13px; opacity: .92; }

.about-txt h2 { font-size: 34px; letter-spacing: .8px; margin-bottom: 8px; }
.about-txt__sub {
  font-size: 13px; letter-spacing: 3.5px; text-transform: uppercase;
  color: var(--c-primary); opacity: .55; font-weight: 700; margin-bottom: 18px; display: block;
}
.about-txt p { font-size: 15.5px; line-height: 2; color: var(--c-body); }
.about-stats {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
  margin: 30px 0; padding: 26px 0; border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line);
}
.about-stats li { display: flex; align-items: center; gap: 12px; }
.about-stats svg { width: 26px; height: 26px; fill: var(--c-primary); flex: none; }
.about-stats b { display: block; font-size: 18px; color: var(--c-title); line-height: 1.3; }
.about-stats span { font-size: 13px; color: var(--c-muted); }
.about-links { display: flex; flex-wrap: wrap; gap: 14px; }

.culture-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
.culture-item {
  position: relative; background: #fff; border-radius: var(--radius-lg);
  padding: 36px 28px 32px; border: 1px solid var(--c-line);
  box-shadow: 0 6px 24px rgba(11, 76, 140, .06);
  transition: all .38s var(--ease); overflow: hidden;
}
.culture-item::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
}
.culture-item:nth-child(1)::before { background: var(--c-primary); }
.culture-item:nth-child(2)::before { background: var(--c-accent); }
.culture-item:nth-child(3)::before { background: linear-gradient(90deg, var(--c-primary), var(--c-accent)); }
.culture-item:hover {
  transform: translateY(-7px);
  box-shadow: 0 18px 44px rgba(11, 76, 140, .13);
  border-color: rgba(11, 76, 140, .18);
}
.culture-item h3 { font-size: 20px; display: flex; align-items: center; gap: 14px; margin-bottom: 14px; color: var(--c-title); }
.culture-item h3 svg {
  width: 52px; height: 52px; padding: 14px; box-sizing: border-box;
  border-radius: 14px; flex: none;
  background: rgba(11, 76, 140, .1); fill: var(--c-primary);
}
.culture-item:nth-child(2) h3 svg { background: rgba(240, 133, 25, .12); fill: var(--c-accent); }
.culture-item:nth-child(3) h3 svg { background: linear-gradient(135deg, rgba(11, 76, 140, .12), rgba(240, 133, 25, .12)); fill: var(--c-primary); }
.culture-item p {
  font-size: 14px; color: var(--c-body); line-height: 1.85;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}

/* ---------- 11. 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.case-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; display: block; }
.case-card__fig {
  padding-top: 72%; background: linear-gradient(135deg, #16405f, #0b4c8c);
  background-size: cover; background-position: center; transition: transform .6s var(--ease);
}
.case-card:hover .case-card__fig { transform: scale(1.07); }
.case-card__mask {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end;
  padding: 20px; background: linear-gradient(to top, rgba(7, 32, 55, .88) 0%, rgba(7, 32, 55, .1) 62%, transparent 100%);
}
.case-card__mask h3 {
  color: #fff; font-size: 16.5px; font-weight: 600;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.case-card__mask span {
  color: rgba(255, 255, 255, .68); font-size: 12.5px; margin-top: 6px;
  display: flex; align-items: center; gap: 6px;
}
.case-card__mask svg { width: 13px; height: 13px; fill: var(--c-accent); }

/* ---------- 12. 企业风采 ---------- */
.show-grid { display: grid; grid-template-columns: repeat(2, 1fr) repeat(2, 1fr); grid-template-rows: repeat(2, 1fr); gap: 20px; }
.show-item { position: relative; border-radius: var(--radius-lg); overflow: hidden; display: block; min-height: 190px; }
.show-item:first-child { grid-row: span 2; grid-column: span 2; }
.show-item__fig {
  position: absolute; inset: 0; background: linear-gradient(135deg, #1d3a52, #2c5b80);
  background-size: cover; background-position: center; transition: transform .6s var(--ease);
}
.show-item:hover .show-item__fig { transform: scale(1.07); }
.show-item__cap {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 16px 18px; z-index: 2;
  background: linear-gradient(to top, rgba(7, 32, 55, .85), transparent);
  color: #fff; font-size: 15px; font-weight: 600;
}

/* ---------- 12.5 资质证书 ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.cert-item {
  display: block; background: #fff; border-radius: var(--radius,10px); overflow: hidden;
  box-shadow: 0 6px 24px rgba(7, 32, 55, .07); transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.cert-item:hover { transform: translateY(-5px); box-shadow: 0 16px 38px rgba(7, 32, 55, .14); }
.cert-item__fig {
  width: 100%; aspect-ratio: 3/4; background-size: cover; background-position: center;
  background-color: #f3f4f6; filter: blur(2px); transform: scale(1.05);
}
.cert-item:hover .cert-item__fig { transform: scale(1.12); }
.cert-item__cap { padding: 10px 8px 12px; text-align: center; }
.cert-item__cap b { display: block; font-size: 13px; line-height: 1.3; color: var(--c-title); font-weight: 700; }
.cert-item__cap span { display: block; font-size: 11px; color: #7a8294; margin-top: 3px; letter-spacing: .3px; }
@media (max-width: 992px) { .cert-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 480px) { .cert-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- 13. 新闻 ---------- */
.news-cols { display: grid; grid-template-columns: repeat(2, 1fr); gap: 42px; }
.news-col__head {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 14px; border-bottom: 2px solid var(--c-line); margin-bottom: 22px;
}
.news-col__head h3 { font-size: 22px; display: flex; align-items: center; gap: 10px; position: relative; }
.news-col__head h3::before { content: ""; width: 4px; height: 20px; background: var(--c-primary); border-radius: 2px; }
.news-col__head a { font-size: 13.5px; color: var(--c-muted); }
.news-col__head a:hover { color: var(--c-primary); }

.news-top { display: block; padding-bottom: 20px; border-bottom: 1px dashed var(--c-line); margin-bottom: 16px; }
.news-top__fig {
  padding-top: 46%; border-radius: var(--radius); margin-bottom: 16px;
  background: linear-gradient(135deg, #dfe8f1, #c8d6e4); background-size: cover; background-position: center;
}
.news-top h4 { font-size: 18.5px; line-height: 1.5; margin-bottom: 9px; }
.news-top:hover h4 { color: var(--c-primary); }
.news-top p {
  font-size: 14px; color: var(--c-muted); line-height: 1.8;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-list li { border-bottom: 1px dashed var(--c-line); }
.news-list li:last-child { border-bottom: 0; }
.news-list a { display: flex; align-items: center; gap: 14px; padding: 13px 0; font-size: 15px; }
.news-list a::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--c-line); flex: none; transition: .3s; }
.news-list a:hover::before { background: var(--c-accent); transform: scale(1.5); }
.news-list__t { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-list__d { font-size: 13px; color: var(--c-muted); flex: none; font-variant-numeric: tabular-nums; }

/* ---------- 14. CTA 条 ---------- */
.cta {
  background: linear-gradient(115deg, var(--c-primary-d) 0%, var(--c-primary) 55%, #1a72c9 100%);
  position: relative; overflow: hidden; padding: 54px 0;
}
.cta::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle at 88% 50%, rgba(240, 133, 25, .3), transparent 45%);
}
.cta .container {
  position: relative; z-index: 2; display: flex; align-items: center;
  justify-content: space-between; gap: 30px; flex-wrap: wrap;
}
.cta__txt h2 { color: #fff; font-size: 30px; letter-spacing: .8px; }
.cta__txt p { color: rgba(255, 255, 255, .78); font-size: 15.5px; margin-top: 8px; }
.cta__box { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.cta__tel { display: flex; align-items: center; gap: 12px; }
.cta__tel svg { width: 42px; height: 42px; fill: #ffc477; flex: none; }
.cta__tel small { display: block; font-size: 13px; color: rgba(255, 255, 255, .7); }
.cta__tel b { font-size: 27px; color: #fff; font-weight: 800; letter-spacing: .5px; }

/* ---------- 15. 内页横幅 ---------- */
.page-hero {
  position: relative; height: 300px; display: flex; align-items: center;
  background: linear-gradient(115deg, #082e52, #0b4c8c 60%, #14639b);
  background-size: cover; background-position: center;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(6, 32, 56, .8) 0%, rgba(6, 32, 56, .45) 60%, rgba(6, 32, 56, .25) 100%);
}
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background-image: repeating-linear-gradient(135deg, rgba(255, 255, 255, .04) 0 2px, transparent 2px 12px);
}
.page-hero .container { position: relative; z-index: 3; }
.page-hero h1 { color: #fff; font-size: 42px; letter-spacing: 1.5px; }
.page-hero p {
  color: rgba(255, 255, 255, .74); font-size: 15.5px; margin-top: 12px; max-width: 640px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

.crumb { background: var(--c-soft); border-bottom: 1px solid var(--c-line); font-size: 14px; }
.crumb .container { display: flex; align-items: center; gap: 8px; height: 54px; color: var(--c-muted); flex-wrap: wrap; }
.crumb svg { width: 15px; height: 15px; fill: var(--c-primary); flex: none; }
.crumb a { color: var(--c-body); }
.crumb a:hover { color: var(--c-primary); }

/* ---------- 16. 内页布局 ---------- */
.page-body { padding: 60px 0 84px; }
.layout { display: grid; grid-template-columns: 270px 1fr; gap: 42px; align-items: start; }
.layout--wide { grid-template-columns: 1fr; }

.side-box { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 26px; }
.side-box__head { background: linear-gradient(120deg, var(--c-primary-d), var(--c-primary)); padding: 20px 22px; }
.side-box__head h3 { color: #fff; font-size: 20px; letter-spacing: .5px; }
.side-box__head span { display: block; font-size: 11.5px; letter-spacing: 2px; text-transform: uppercase; color: rgba(255, 255, 255, .55); margin-top: 3px; }
.side-nav li { border-bottom: 1px solid var(--c-line); }
.side-nav li:last-child { border-bottom: 0; }
.side-nav a {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 14px 22px; font-size: 15px; color: var(--c-body); position: relative;
}
.side-nav a svg { width: 13px; height: 13px; fill: var(--c-muted); flex: none; transition: .3s; }
.side-nav a:hover, .side-nav a.on { background: var(--c-primary-05); color: var(--c-primary); font-weight: 600; }
.side-nav a:hover svg, .side-nav a.on svg { fill: var(--c-primary); transform: translateX(3px); }

.side-contact { padding: 24px 22px; background: var(--c-dark); }
.side-contact h3 { color: #fff; font-size: 18px; margin-bottom: 16px; }
.side-contact li { display: flex; gap: 11px; margin-bottom: 13px; color: rgba(255, 255, 255, .7); font-size: 14px; line-height: 1.7; }
.side-contact svg { width: 17px; height: 17px; fill: var(--c-accent); flex: none; margin-top: 4px; }
.side-contact b { color: #fff; font-size: 19px; font-weight: 800; }

.side-hot li { border-bottom: 1px dashed var(--c-line); }
.side-hot li:last-child { border-bottom: 0; }
.side-hot a { display: flex; gap: 12px; padding: 14px 22px; align-items: center; }
.side-hot__fig {
  width: 72px; height: 54px; flex: none; border-radius: var(--radius);
  background: linear-gradient(135deg, #e2eaf3, #cdd9e6); background-size: cover; background-position: center;
}
.side-hot__t {
  font-size: 14px; line-height: 1.6; color: var(--c-body);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.side-hot a:hover .side-hot__t { color: var(--c-primary); }

/* ---------- 17. 列表页 ---------- */
.list-head {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 16px; border-bottom: 2px solid var(--c-line); margin-bottom: 30px; flex-wrap: wrap; gap: 12px;
}
.list-head h2 { font-size: 26px; display: flex; align-items: center; gap: 11px; }
.list-head h2::before { content: ""; width: 4px; height: 22px; background: var(--c-accent); border-radius: 2px; }
.list-head span { font-size: 13.5px; color: var(--c-muted); }

.prod-grid--3 { grid-template-columns: repeat(3, 1fr); }

.art-list li { border-bottom: 1px dashed var(--c-line); }
.art-list a { display: flex; gap: 24px; padding: 26px 0; align-items: flex-start; }
.art-list__fig {
  width: 232px; height: 150px; flex: none; border-radius: var(--radius); overflow: hidden;
  background: linear-gradient(135deg, #e2eaf3, #cdd9e6); background-size: cover; background-position: center;
  transition: transform .5s var(--ease);
}
.art-list a:hover .art-list__fig { transform: scale(1.04); }
/* 列表无缩略图时隐藏占位图，避免“无缩略图”破图 */
.art-list__fig[style*="nopic.png"] { display: none; }
.art-list__body { flex: 1; min-width: 0; }
.art-list__body h3 { font-size: 20px; line-height: 1.5; margin-bottom: 10px; }
.art-list a:hover .art-list__body h3 { color: var(--c-primary); }
.art-list__body p {
  font-size: 14.5px; color: var(--c-muted); line-height: 1.85;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.art-list__meta { display: flex; align-items: center; gap: 20px; margin-top: 14px; font-size: 13px; color: var(--c-muted); }
.art-list__meta i { display: inline-flex; align-items: center; gap: 6px; font-style: normal; }
.art-list__meta svg { width: 14px; height: 14px; fill: var(--c-muted); }

.empty { text-align: center; padding: 70px 20px; color: var(--c-muted); }
.empty svg { width: 62px; height: 62px; fill: var(--c-line); margin-bottom: 16px; }

/* ---------- 18. 分页 ---------- */
.paging { margin-top: 44px; text-align: center; font-size: 14px; color: var(--c-muted); }
.paging a, .paging .page-num, .paging .page-index, .paging .page-pre, .paging .page-next, .paging .page-last {
  display: inline-block; min-width: 38px; height: 38px; line-height: 36px; padding: 0 13px;
  margin: 0 3px 8px; border: 1px solid var(--c-line); border-radius: var(--radius);
  background: #fff; color: var(--c-body);
}
.paging a:hover, .paging .page-num:hover { border-color: var(--c-primary); color: var(--c-primary); }
.paging .page-num-current { background: var(--c-primary); border-color: var(--c-primary); color: #fff; font-weight: 600; }
.paging .page-status { border: 0; background: none; color: var(--c-muted); }

/* ---------- 19. 详情页 ---------- */
.article { background: #fff; }
.article__head { border-bottom: 1px solid var(--c-line); padding-bottom: 24px; margin-bottom: 30px; }
.article__head h1 { font-size: 30px; line-height: 1.45; letter-spacing: .3px; }
.article__meta { display: flex; flex-wrap: wrap; gap: 10px 24px; margin-top: 16px; font-size: 13.5px; color: var(--c-muted); }
.article__meta i { display: inline-flex; align-items: center; gap: 6px; font-style: normal; }
.article__meta svg { width: 14px; height: 14px; fill: var(--c-muted); }
.article__body { font-size: 16px; line-height: 1.95; color: var(--c-body); }
.article__body p { margin-bottom: 18px; }
.article__body img { max-width: 100%; height: auto !important; border-radius: var(--radius); margin: 8px 0; }
.article__body h1, .article__body h2, .article__body h3, .article__body h4 { margin: 28px 0 14px; }
.article__body h2 { font-size: 23px; padding-left: 13px; border-left: 4px solid var(--c-primary); }
.article__body h3 { font-size: 20px; }
.article__body ul, .article__body ol { margin: 0 0 18px 22px; }
.article__body ul li { list-style: disc; margin-bottom: 8px; }
.article__body ol li { list-style: decimal; margin-bottom: 8px; }
.article__body table { width: 100%; margin: 18px 0; font-size: 14.5px; }
.article__body table th, .article__body table td { border: 1px solid var(--c-line); padding: 10px 14px; }
.article__body table th { background: var(--c-soft); color: var(--c-title); font-weight: 600; }
.article__body blockquote {
  background: var(--c-primary-05); border-left: 4px solid var(--c-primary);
  padding: 16px 20px; margin: 18px 0; border-radius: 0 var(--radius) var(--radius) 0;
}
.article__body a { color: var(--c-primary); text-decoration: underline; }

.prod-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; margin-bottom: 46px; }
.prod-detail__fig {
  border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--c-line);
  padding-top: 74%; background: linear-gradient(135deg, #e8eef5, #d3dee9);
  background-size: cover; background-position: center; position: relative;
}
.prod-detail__info h1 { font-size: 28px; line-height: 1.4; margin-bottom: 8px; }
.prod-detail__sub { color: var(--c-muted); font-size: 15px; margin-bottom: 20px; }
.prod-detail__params { border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line); padding: 20px 0; margin-bottom: 24px; }
.prod-detail__params li { display: flex; gap: 12px; padding: 7px 0; font-size: 14.5px; }
.prod-detail__params b { color: var(--c-title); font-weight: 600; flex: none; min-width: 84px; }
.prod-detail__tel {
  background: var(--c-soft); border-radius: var(--radius-lg); padding: 20px 24px; margin-bottom: 22px;
  display: flex; align-items: center; gap: 14px;
}
.prod-detail__tel svg { width: 38px; height: 38px; fill: var(--c-primary); flex: none; }
.prod-detail__tel small { display: block; font-size: 13px; color: var(--c-muted); }
.prod-detail__tel b { font-size: 25px; color: var(--c-accent); font-weight: 800; }
.prod-detail__btns { display: flex; gap: 12px; flex-wrap: wrap; }

.tab-title {
  display: flex; align-items: center; gap: 11px; font-size: 21px;
  padding-bottom: 14px; border-bottom: 2px solid var(--c-line); margin-bottom: 26px;
}
.tab-title::before { content: ""; width: 4px; height: 20px; background: var(--c-primary); border-radius: 2px; }

.pn-nav {
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--c-line); font-size: 14.5px;
}
.pn-nav > div { max-width: 48%; color: var(--c-muted); }
.pn-nav a { color: var(--c-body); }
.pn-nav a:hover { color: var(--c-primary); }

.rel-title { font-size: 22px; margin: 52px 0 24px; display: flex; align-items: center; gap: 11px; }
.rel-title::before { content: ""; width: 4px; height: 20px; background: var(--c-accent); border-radius: 2px; }

/* ---------- 20. 单页 / 联系 ---------- */
.page-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 46px 50px;
}
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
.contact-info li { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px dashed var(--c-line); }
.contact-info li:last-child { border-bottom: 0; }
.contact-info__ico {
  width: 46px; height: 46px; flex: none; border-radius: 50%; background: var(--c-primary-05);
  display: flex; align-items: center; justify-content: center;
}
.contact-info__ico svg { width: 21px; height: 21px; fill: var(--c-primary); }
.contact-info small { display: block; font-size: 13px; color: var(--c-muted); }
.contact-info b { font-size: 17px; color: var(--c-title); font-weight: 600; line-height: 1.6; }
.contact-info b.big { font-size: 24px; color: var(--c-accent); font-weight: 800; }
.contact-qr { display: flex; align-items: center; gap: 16px; margin-top: 22px; padding: 16px; background: #f7f9fc; border-radius: 10px; }
.contact-qr img { width: 126px; height: 126px; border: 1px solid var(--c-line); border-radius: 8px; padding: 6px; background: #fff; object-fit: contain; }
.contact-qr small { display: block; font-size: 12.5px; color: var(--c-muted); }
.contact-qr b { display: block; font-size: 15px; color: var(--c-title); font-weight: 600; margin-top: 4px; line-height: 1.6; }

.form-card { background: var(--c-soft); border-radius: var(--radius-lg); padding: 34px 32px; }
.form-card h3 { font-size: 22px; margin-bottom: 6px; }
.form-card > p { font-size: 14px; color: var(--c-muted); margin-bottom: 22px; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 14px; color: var(--c-title); margin-bottom: 7px; font-weight: 500; }
.form-row label em { color: var(--c-accent); font-style: normal; }
.form-row input, .form-row textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--c-line);
  border-radius: var(--radius); background: #fff; color: var(--c-title);
  transition: border-color .28s;
}
.form-row input:focus, .form-row textarea:focus { border-color: var(--c-primary); }
.form-row textarea { min-height: 112px; resize: vertical; }
.form-code { display: flex; gap: 12px; align-items: stretch; }
.form-code input { flex: 1; }
.form-code img { height: 44px; border-radius: var(--radius); border: 1px solid var(--c-line); cursor: pointer; }
.form-card .btn { width: 100%; margin-top: 8px; }

/* ---------- 21. 页脚 ---------- */
.footer { background: var(--c-dark); color: rgba(255, 255, 255, .58); font-size: 14px; }
.footer__main { padding: 60px 0 46px; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; }
.footer h4 { color: #fff; font-size: 17px; margin-bottom: 20px; position: relative; padding-bottom: 12px; }
.footer h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 2px; background: var(--c-accent); }
.footer__intro { line-height: 1.9; margin-bottom: 20px; }
.footer__logo { margin-bottom: 18px; }
.footer__logo-img { max-height: 48px; width: auto; }
.footer__links li { margin-bottom: 11px; }
.footer__links a { display: inline-flex; align-items: center; gap: 8px; }
.footer__links a::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: rgba(255, 255, 255, .3); transition: .3s; }
.footer__links a:hover { color: #fff; }
.footer__links a:hover::before { background: var(--c-accent); }
.footer__contact li { display: flex; gap: 11px; margin-bottom: 14px; line-height: 1.7; }
.footer__contact svg { width: 17px; height: 17px; fill: var(--c-accent); flex: none; margin-top: 4px; }
.footer__contact b { display: block; color: #fff; font-size: 21px; font-weight: 800; letter-spacing: .3px; }
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .08); padding: 20px 0; font-size: 13.5px;
}
.footer__bottom .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer__bottom a:hover { color: #fff; }
.footer__flink { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 22. 悬浮工具 ---------- */
.float-bar { position: fixed; right: 18px; bottom: 90px; z-index: 800; display: flex; flex-direction: column; gap: 8px; }
.float-bar__btn {
  width: 50px; height: 50px; border-radius: var(--radius); background: #fff;
  border: 1px solid var(--c-line); box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  cursor: pointer; position: relative; transition: all .3s var(--ease);
}
.float-bar__btn svg { width: 20px; height: 20px; fill: var(--c-primary); transition: fill .3s; }
.float-bar__btn small { font-size: 10px; color: var(--c-muted); line-height: 1; }
.float-bar__btn:hover { background: var(--c-primary); border-color: var(--c-primary); }
.float-bar__btn:hover svg { fill: #fff; }
.float-bar__btn:hover small { color: #fff; }
.float-bar__pop {
  position: absolute; right: 60px; top: 50%; transform: translateY(-50%) translateX(8px);
  background: var(--c-dark); color: #fff; padding: 10px 16px; border-radius: var(--radius);
  white-space: nowrap; font-size: 15px; font-weight: 600; opacity: 0; visibility: hidden;
  transition: all .3s var(--ease); box-shadow: var(--shadow);
}
.float-bar__btn:hover .float-bar__pop { opacity: 1; visibility: visible; transform: translateY(-50%) translateX(0); }
#toTop { display: none; }
#toTop.show { display: flex; }

.mobile-bar { display: none; }

/* ---------- 23. 进场动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 24. 响应式 ---------- */
@media (max-width: 1200px) {
  .prod-grid, .adv-grid, .case-grid { grid-template-columns: repeat(3, 1fr); }
  .footer__main { grid-template-columns: repeat(2, 1fr); }
  .nav__item > a { padding: 0 10px; font-size: 14px; }
  .header__cta { display: flex; padding: 4px 10px; }
  .header__cta small { display: none; }
  .header__cta b { font-size: 20px; }
  .header__cta svg { width: 28px; height: 28px; }
}
@media (max-width: 992px) {
  :root { --header-h: 66px; }
  .topbar { display: none; }
  .nav-toggle { display: flex; }
  .nav {
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    background: #fff; margin: 0; padding: 12px 0 40px; overflow-y: auto;
    transform: translateX(100%); transition: transform .36s var(--ease); z-index: 899;
  }
  .nav.open { transform: none; }
  .nav__list { display: block; }
  .nav__item > a { line-height: 52px; padding: 0 24px; border-bottom: 1px solid var(--c-line); font-size: 16px; }
  .nav__item > a::after { display: none; }
  .nav__sub {
    position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none;
    border-top: 0; background: var(--c-soft); padding: 0; min-width: 0; display: none;
  }
  .nav__item.expand .nav__sub { display: block; }
  .nav__sub a { padding: 11px 40px; border-bottom: 1px solid var(--c-line); }
  .hero { min-height: 440px; }
  .hero h1 { font-size: 36px; }
  .hero__desc { font-size: 15.5px; }
  .section { padding: 58px 0; }
  .sec-head { margin-bottom: 34px; }
  .sec-head h2 { font-size: 28px; }
  .about-wrap { grid-template-columns: 1fr; gap: 40px; }
  .culture-grid { grid-template-columns: 1fr; }
  .news-cols { grid-template-columns: 1fr; gap: 40px; }
  .layout { grid-template-columns: 1fr; gap: 34px; }
  .side-box--nav { display: none; }
  .prod-detail { grid-template-columns: 1fr; gap: 26px; }
  .contact-grid { grid-template-columns: 1fr; gap: 30px; }
  .page-hero { height: 220px; }
  .page-hero h1 { font-size: 30px; }
  .page-card { padding: 30px 24px; }
  .show-grid { grid-template-columns: repeat(2, 1fr); grid-template-rows: auto; }
  .show-item:first-child { grid-row: span 1; grid-column: span 2; min-height: 220px; }
  .float-bar { display: none; }
  .mobile-bar {
    display: grid; grid-template-columns: repeat(4, 1fr);
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 900;
    background: #fff; border-top: 1px solid var(--c-line); box-shadow: 0 -3px 16px rgba(16, 42, 67, .09);
  }
  .mobile-bar a {
    padding: 9px 0 8px; text-align: center; font-size: 12px; color: var(--c-body);
    display: flex; flex-direction: column; align-items: center; gap: 3px;
  }
  .mobile-bar svg { width: 20px; height: 20px; fill: var(--c-primary); }
  .mobile-bar a.hl { background: var(--c-accent); color: #fff; }
  .mobile-bar a.hl svg { fill: #fff; }
  body { padding-bottom: 58px; }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .prod-grid, .adv-grid, .case-grid, .prod-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .adv-stats { grid-template-columns: repeat(2, 1fr); gap: 26px 16px; }
  .footer__main { grid-template-columns: 1fr; gap: 30px; padding: 44px 0 34px; }
  .hero h1 { font-size: 28px; }
  .hero { min-height: 480px; }
  .hero .container { max-width: 100%; margin: 0; padding: 26px 16px; }
  .hero__meta { gap: 10px 20px; }
  .hero__meta li { font-size: 14px; }
  .btn { height: 46px; padding: 0 24px; font-size: 15px; }
  .quickbar .container { gap: 14px; }
  .searchbox { width: 100%; }
  .searchbox input { width: 100%; }
  .art-list a { flex-direction: column; gap: 14px; }
  .art-list__fig { width: 100%; height: 190px; }
  .article__head h1 { font-size: 23px; }
  .cta { padding: 40px 0; }
  .cta__txt h2 { font-size: 24px; }
  .pn-nav > div { max-width: 100%; }
  .sec-head h2 { font-size: 24px; }
  .about-txt h2 { font-size: 26px; }
  .about-stats { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .prod-grid, .adv-grid, .case-grid, .prod-grid--3, .show-grid { grid-template-columns: 1fr; }
  .show-item:first-child { grid-column: span 1; }
  .logo__text strong { font-size: 17px; }
  .logo__text span { font-size: 10px; letter-spacing: 1.5px; }
  .logo__mark { width: 38px; height: 38px; }
  .logo__mark svg { width: 23px; height: 23px; }
}

/* 文章/案例/企业风采详情主图 */
.article__fig{width:100%;aspect-ratio:16/9;background-size:cover;background-position:center;background-repeat:no-repeat;border-radius:var(--radius,10px);margin:4px 0 26px;}