/* ============================================================
   无锡世敖科技有限公司官网 - 全站样式
   主色：#e60012（企业红）  辅助：#1a1a1a / #f5f5f5
   ============================================================ */
:root {
  --primary: #e60012;
  --primary-dark: #b8000e;
  --dark: #1a1a1a;
  --gray: #666;
  --light-gray: #999;
  --bg-gray: #f5f5f5;
  --bg-light: #fafafa;
  --border: #e8e8e8;
  --max-w: 1200px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--dark);
  font-size: 15px;
  line-height: 1.7;
  background: #fff;
}
a { color: inherit; text-decoration: none; transition: all .3s; }
img { max-width: 100%; display: block; }
ul, li { list-style: none; }
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 15px; }
.clearfix::after { content: ""; display: block; clear: both; }

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: var(--dark);
  color: #ccc;
  font-size: 13px;
  padding: 8px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; }
.topbar .top-welcome { letter-spacing: .5px; }
.topbar .top-tel { color: #fff; }
.topbar .top-tel strong { color: var(--primary); font-size: 15px; margin-left: 4px; }

/* ---------- 头部导航 ---------- */
.header {
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 12px rgba(0,0,0,.08);
}
.header .container { display: flex; align-items: center; justify-content: space-between; height: 90px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: bold; font-size: 20px;
  box-shadow: 0 4px 10px rgba(230,0,18,.3);
}
.logo-text h1 { font-size: 21px; color: var(--dark); line-height: 1.3; font-weight: 700; }
.logo-text p { font-size: 11px; color: var(--light-gray); letter-spacing: 1.5px; text-transform: uppercase; }

.nav { display: flex; align-items: center; }
.nav > ul { display: flex; flex-wrap: nowrap; }
.nav > ul > li { position: relative; flex-shrink: 0; }
.nav > ul > li > a {
  display: block;
  padding: 34px 14px;
  font-size: 15.5px;
  color: var(--dark);
  position: relative;
  white-space: nowrap;
}
.nav > ul > li > a::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 26px;
  height: 3px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform .3s;
}
.nav > ul > li:hover > a,
.nav > ul > li.active > a { color: var(--primary); }
.nav > ul > li:hover > a::after,
.nav > ul > li.active > a::after { transform: scaleX(1); }
/* 下拉菜单 */
.dropdown {
  position: absolute;
  top: 100%; left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 200px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  border-top: 3px solid var(--primary);
  opacity: 0;
  visibility: hidden;
  transition: all .3s;
  z-index: 100;
}
.nav li:hover .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.dropdown li a {
  display: block;
  padding: 12px 20px;
  font-size: 14px;
  color: var(--gray);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.dropdown li:last-child a { border-bottom: none; }
.dropdown li a:hover { background: var(--bg-gray); color: var(--primary); padding-left: 26px; }
.nav-tel {
  display: flex; align-items: center; gap: 8px;
  color: var(--primary); font-weight: bold; font-size: 18px;
}
.nav-tel svg { flex-shrink: 0; }
/* 移动端汉堡按钮 */
.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.menu-toggle span { display: block; width: 26px; height: 3px; background: var(--dark); margin: 5px 0; transition: .3s; }

/* ---------- Banner 轮播 ---------- */
.banner { position: relative; overflow: hidden; height: 520px; }
.slides { position: relative; height: 100%; }
.slide {
  position: absolute; inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
  display: flex; align-items: center;
  background-size: cover;
  background-position: center;
}
.slide.active { opacity: 1; z-index: 1; }
.slide-1 { background: linear-gradient(120deg, #141e30 0%, #243b55 60%, #3a5a80 100%); }
.slide-2 { background: linear-gradient(120deg, #2b0a0e 0%, #5c1118 55%, #8f1d26 100%); }
.slide-3 { background: linear-gradient(120deg, #0f2027 0%, #203a43 50%, #2c5364 100%); }
.slide::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 78% 30%, rgba(255,255,255,.08), transparent 40%),
    repeating-linear-gradient(45deg, rgba(255,255,255,.02) 0 2px, transparent 2px 12px);
}
.slide .container { position: relative; z-index: 2; }
.slide-content { max-width: 640px; color: #fff; }
.slide-tag {
  display: inline-block;
  padding: 6px 18px;
  border: 1px solid rgba(255,255,255,.5);
  border-radius: 30px;
  font-size: 14px;
  letter-spacing: 3px;
  margin-bottom: 22px;
  color: rgba(255,255,255,.9);
}
.slide-content h2 { font-size: 44px; line-height: 1.25; margin-bottom: 18px; font-weight: 700; }
.slide-content h2 em { color: #ffd34d; font-style: normal; }
.slide-2 .slide-content h2 em { color: #ffccd0; }
.slide-content p { font-size: 17px; color: rgba(255,255,255,.82); margin-bottom: 32px; letter-spacing: .5px; }
.btn {
  display: inline-block;
  padding: 13px 42px;
  background: var(--primary);
  color: #fff;
  border-radius: 4px;
  font-size: 16px;
  letter-spacing: 2px;
  box-shadow: 0 6px 18px rgba(230,0,18,.4);
}
.btn:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  border: 1px solid #fff;
  box-shadow: none;
  margin-left: 14px;
}
.btn-outline:hover { background: #fff; color: var(--dark); }
/* 轮播指示点/箭头 */
.banner-dots { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 10; }
.banner-dots span { width: 34px; height: 4px; background: rgba(255,255,255,.35); cursor: pointer; transition: .3s; border-radius: 2px; }
.banner-dots span.active { background: var(--primary); width: 48px; }
.banner-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px;
  background: rgba(0,0,0,.25);
  color: #fff; border: none; cursor: pointer;
  font-size: 22px; z-index: 10;
  transition: .3s;
  display: flex; align-items: center; justify-content: center;
}
.banner-arrow:hover { background: var(--primary); }
.banner-prev { left: 30px; }
.banner-next { right: 30px; }

/* ---------- 通用版块标题 ---------- */
.section { padding: 70px 0; }
.section.gray { background: var(--bg-gray); }
.sec-title { text-align: center; margin-bottom: 46px; }
.sec-title .en {
  font-size: 15px;
  color: var(--light-gray);
  letter-spacing: 4px;
  text-transform: uppercase;
  display: flex; align-items: center; justify-content: center; gap: 14px;
}
.sec-title .en::before, .sec-title .en::after {
  content: ""; width: 46px; height: 1px; background: #ddd;
}
.sec-title h2 { font-size: 32px; margin-top: 8px; font-weight: 700; }
.sec-title h2 span { color: var(--primary); }
.sec-title .sub { color: var(--gray); margin-top: 10px; font-size: 15px; }
.sec-title.left { text-align: left; }
.sec-title.left .en { justify-content: flex-start; }
.sec-title.left .en::before { display: none; }

/* ---------- 产品中心 ---------- */
.product-cats { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin-bottom: 38px; }
.product-cats button {
  padding: 9px 24px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--gray);
  font-size: 15px;
  cursor: pointer;
  border-radius: 30px;
  transition: .3s;
  font-family: inherit;
}
.product-cats button:hover, .product-cats button.active {
  background: var(--primary); color: #fff; border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(230,0,18,.3);
}
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card {
  background: #fff;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all .35s;
  position: relative;
}
.product-card:hover { transform: translateY(-8px); box-shadow: 0 14px 34px rgba(0,0,0,.12); border-color: transparent; }
.product-img {
  height: 210px;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.product-img svg { width: 120px; height: 120px; transition: transform .5s; }
.product-card:hover .product-img svg { transform: scale(1.12); }
.product-info { padding: 18px; text-align: center; border-top: 1px solid var(--border); }
.product-info h3 { font-size: 16px; margin-bottom: 6px; transition: .3s; }
.product-card:hover .product-info h3 { color: var(--primary); }
.product-info p { font-size: 13px; color: var(--light-gray); }
.product-card .go {
  position: absolute; top: 0; right: 0;
  width: 40px; height: 40px;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: .3s;
  font-size: 18px;
}
.product-card:hover .go { opacity: 1; }
.more-wrap { text-align: center; margin-top: 40px; }
.more-btn {
  display: inline-block;
  padding: 12px 48px;
  border: 1px solid var(--primary);
  color: var(--primary);
  border-radius: 30px;
  font-size: 15px;
  letter-spacing: 2px;
  transition: .3s;
}
.more-btn:hover { background: var(--primary); color: #fff; box-shadow: 0 6px 16px rgba(230,0,18,.35); }

/* ---------- 解决方案宣传条 ---------- */
.cta-band {
  position: relative;
  padding: 74px 0;
  background: linear-gradient(100deg, #101725 0%, #1d2b45 55%, #243b55 100%);
  color: #fff;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 85% 20%, rgba(230,0,18,.35), transparent 42%),
    repeating-linear-gradient(-45deg, rgba(255,255,255,.03) 0 2px, transparent 2px 14px);
}
.cta-band .container { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-text h2 { font-size: 30px; line-height: 1.4; margin-bottom: 12px; }
.cta-text h2 span { color: #ff5a67; }
.cta-text p { color: rgba(255,255,255,.65); font-size: 15px; max-width: 560px; }
.cta-tels { display: flex; gap: 18px; flex-wrap: wrap; }
.cta-tel-item {
  display: flex; align-items: center; gap: 14px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.16);
  padding: 14px 26px;
  border-radius: 6px;
  backdrop-filter: blur(4px);
}
.cta-tel-item .icon {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--primary);
  display: flex; align-items: center; justify-content: center;
}
.cta-tel-item small { display: block; font-size: 12px; color: rgba(255,255,255,.6); letter-spacing: 1px; }
.cta-tel-item strong { font-size: 21px; letter-spacing: 1px; }

/* ---------- 核心优势 ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.adv-card {
  background: #fff;
  padding: 40px 26px;
  text-align: center;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: all .35s;
}
.adv-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform .35s;
}
.adv-card:hover { box-shadow: 0 14px 34px rgba(0,0,0,.1); transform: translateY(-6px); }
.adv-card:hover::before { transform: scaleX(1); }
.adv-num {
  position: absolute; top: 12px; right: 16px;
  font-size: 46px; font-weight: 800;
  color: rgba(230,0,18,.07);
  line-height: 1;
}
.adv-icon {
  width: 78px; height: 78px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, #fff0f1, #ffe0e3);
  display: flex; align-items: center; justify-content: center;
  transition: .35s;
}
.adv-card:hover .adv-icon { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.adv-icon svg { width: 38px; height: 38px; stroke: var(--primary); transition: .35s; }
.adv-card:hover .adv-icon svg { stroke: #fff; }
.adv-card h3 { font-size: 19px; margin-bottom: 4px; }
.adv-card .adv-sub { color: var(--primary); font-size: 13px; margin-bottom: 14px; letter-spacing: 1px; }
.adv-card p { font-size: 13.5px; color: var(--gray); text-align: left; line-height: 1.8; }

/* ---------- 案例展示 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-item {
  position: relative;
  height: 260px;
  overflow: hidden;
  cursor: pointer;
}
.case-bg {
  position: absolute; inset: 0;
  transition: transform .6s;
  display: flex; align-items: center; justify-content: center;
}
.case-item:hover .case-bg { transform: scale(1.08); }
.case-mask {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.82) 0%, rgba(0,0,0,.15) 55%, transparent 100%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 24px;
  color: #fff;
  transition: .4s;
}
.case-item:hover .case-mask { background: linear-gradient(to top, rgba(230,0,18,.88) 0%, rgba(0,0,0,.25) 60%, transparent 100%); }
.case-mask .industry { font-size: 12px; letter-spacing: 2px; color: #ffb3b9; margin-bottom: 6px; }
.case-mask h3 { font-size: 18px; margin-bottom: 6px; }
.case-mask p { font-size: 13px; color: rgba(255,255,255,.75); opacity: 0; max-height: 0; transition: .4s; }
.case-item:hover .case-mask p { opacity: 1; max-height: 60px; }

/* ---------- 关于我们（首页） ---------- */
.about-wrap { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.about-visual { position: relative; height: 400px; }
.about-img-main {
  position: absolute; inset: 0 60px 60px 0;
  border-radius: 6px;
  overflow: hidden;
}
.about-img-deco {
  position: absolute; right: 0; bottom: 0;
  width: 190px; height: 190px;
  background: var(--primary);
  border-radius: 6px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: #fff;
  box-shadow: 0 16px 40px rgba(230,0,18,.35);
}
.about-img-deco strong { font-size: 52px; line-height: 1; }
.about-img-deco span { font-size: 14px; letter-spacing: 2px; margin-top: 6px; }
.about-content .sec-title { margin-bottom: 24px; }
.about-content p { color: var(--gray); margin-bottom: 14px; text-indent: 2em; }
.about-feats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 22px 0 30px; }
.about-feats li { display: flex; align-items: center; gap: 10px; font-size: 14.5px; }
.about-feats li i {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-style: normal; font-size: 12px; flex-shrink: 0;
}

/* ---------- 新闻中心 ---------- */
.news-tabs { display: flex; justify-content: center; gap: 6px; margin-bottom: 36px; }
.news-tabs button {
  padding: 10px 38px;
  font-size: 16px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--gray);
  cursor: pointer;
  transition: .3s;
  font-family: inherit;
}
.news-tabs button:first-child { border-radius: 4px 0 0 4px; }
.news-tabs button:last-child { border-radius: 0 4px 4px 0; }
.news-tabs button.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.news-layout { display: grid; grid-template-columns: 1.1fr 1.4fr; gap: 30px; }
.news-feature {
  background: #fff;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: .35s;
  cursor: pointer;
}
.news-feature:hover { box-shadow: 0 12px 30px rgba(0,0,0,.1); }
.news-feature-img {
  height: 240px;
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.news-feature-img .date-badge {
  position: absolute; left: 0; top: 20px;
  background: var(--primary); color: #fff;
  padding: 8px 16px;
  font-size: 13px;
}
.news-feature-body { padding: 22px 24px; }
.news-feature-body h3 { font-size: 18px; margin-bottom: 10px; transition: .3s; }
.news-feature:hover .news-feature-body h3 { color: var(--primary); }
.news-feature-body p { font-size: 13.5px; color: var(--gray); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-list li {
  background: #fff;
  border: 1px solid var(--border);
  padding: 18px 22px;
  margin-bottom: 14px;
  display: flex; gap: 20px; align-items: center;
  transition: .3s;
  cursor: pointer;
}
.news-list li:hover { border-color: var(--primary); transform: translateX(6px); }
.news-date {
  flex-shrink: 0;
  width: 72px; text-align: center;
  border-right: 1px dashed var(--border);
  padding-right: 18px;
}
.news-date .d { font-size: 26px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.news-date .ym { font-size: 12px; color: var(--light-gray); }
.news-item-body h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; transition: .3s; }
.news-list li:hover .news-item-body h3 { color: var(--primary); }
.news-item-body p { font-size: 13px; color: var(--light-gray); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 560px; }

/* ---------- 合作伙伴 ---------- */
.partner-strip { background: #fff; border-top: 1px solid var(--border); padding: 34px 0; }
.partner-row { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.partner-logo {
  flex: 1; min-width: 150px;
  height: 64px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--light-gray); font-size: 15px; font-weight: 600;
  letter-spacing: 1px;
  filter: grayscale(1);
  transition: .3s;
  background: #fff;
}
.partner-logo:hover { filter: none; color: var(--primary); border-color: var(--primary); transform: translateY(-3px); }

/* ---------- 页脚 ---------- */
.footer { background: #17191d; color: #999; padding-top: 56px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; }
.footer-col h4 { color: #fff; font-size: 17px; margin-bottom: 20px; position: relative; padding-bottom: 12px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 2px; background: var(--primary); }
.footer-about p { font-size: 13.5px; line-height: 1.9; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; color: #fff; font-size: 18px; font-weight: 700; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; }
.footer-links a:hover { color: var(--primary); padding-left: 5px; }
.footer-contact li { display: flex; gap: 10px; margin-bottom: 14px; font-size: 14px; align-items: flex-start; }
.footer-contact li svg { flex-shrink: 0; margin-top: 4px; }
.footer-contact strong { color: #ddd; }
.qrcode-box {
  width: 110px; height: 110px;
  background: #fff;
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  margin-top: 6px;
}
.copyright {
  border-top: 1px solid #2a2d33;
  padding: 18px 0;
  text-align: center;
  font-size: 13px;
  color: #777;
}
.copyright a:hover { color: var(--primary); }

/* ---------- 悬浮组件 ---------- */
.float-bar { position: fixed; right: 18px; bottom: 90px; z-index: 900; display: flex; flex-direction: column; gap: 8px; }
.float-item {
  width: 52px; height: 52px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--gray);
  font-size: 11px;
  gap: 3px;
  box-shadow: 0 4px 14px rgba(0,0,0,.1);
  transition: .3s;
  position: relative;
}
.float-item:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.float-item .pop {
  position: absolute; right: 60px; top: 50%; transform: translateY(-50%);
  background: #fff; color: var(--dark);
  padding: 10px 16px;
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(0,0,0,.15);
  white-space: nowrap;
  font-size: 14px;
  opacity: 0; visibility: hidden; transition: .3s;
}
.float-item:hover .pop { opacity: 1; visibility: visible; right: 66px; }
.float-item .pop strong { color: var(--primary); font-size: 16px; }
#backTop { opacity: 0; visibility: hidden; }
#backTop.show { opacity: 1; visibility: visible; }

/* ---------- 内页横幅 ---------- */
.page-banner {
  height: 300px;
  background: linear-gradient(110deg, #141e30 0%, #243b55 60%, #33475e 100%);
  position: relative;
  display: flex; align-items: center;
  color: #fff;
  overflow: hidden;
}
.page-banner::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(230,0,18,.3), transparent 45%),
    repeating-linear-gradient(45deg, rgba(255,255,255,.025) 0 2px, transparent 2px 12px);
}
.page-banner .container { position: relative; z-index: 2; }
.page-banner h2 { font-size: 40px; margin-bottom: 8px; }
.page-banner .en { font-size: 15px; letter-spacing: 5px; color: rgba(255,255,255,.6); text-transform: uppercase; }
.breadcrumb { margin-top: 16px; font-size: 13.5px; color: rgba(255,255,255,.7); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span { margin: 0 8px; }

/* ---------- 内页产品 ---------- */
.product-page-layout { display: grid; grid-template-columns: 250px 1fr; gap: 30px; }
.sidebar {
  background: #fff;
  border: 1px solid var(--border);
  align-self: start;
}
.sidebar h3 {
  background: var(--primary);
  color: #fff;
  padding: 14px 20px;
  font-size: 17px;
}
.sidebar li a {
  display: block;
  padding: 13px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 14.5px;
  color: var(--gray);
  transition: .3s;
}
.sidebar li a:hover, .sidebar li a.active { color: var(--primary); background: #fff7f7; padding-left: 28px; }
.sidebar-contact { margin-top: 24px; background: linear-gradient(150deg, #1d2b45, #243b55); color: #fff; padding: 26px 22px; border-radius: 6px; }
.sidebar-contact h4 { font-size: 17px; margin-bottom: 12px; }
.sidebar-contact p { font-size: 13px; color: rgba(255,255,255,.75); margin-bottom: 14px; }
.sidebar-contact .tel { font-size: 20px; font-weight: 700; color: #ffd34d; }

/* ---------- 关于我们内页 ---------- */
.about-detail p { text-indent: 2em; color: var(--gray); margin-bottom: 16px; line-height: 1.95; }
.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.honor-item {
  border: 1px solid var(--border);
  padding: 30px 18px;
  text-align: center;
  background: #fff;
  transition: .3s;
}
.honor-item:hover { box-shadow: 0 10px 26px rgba(0,0,0,.1); transform: translateY(-5px); }
.honor-item .medal {
  width: 70px; height: 70px; margin: 0 auto 16px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #fff5e0, #ffe3ad);
}
.honor-item h4 { font-size: 15.5px; margin-bottom: 4px; }
.honor-item p { font-size: 12.5px; color: var(--light-gray); }
/* 荣誉证书图片卡片 */
.honor-item.has-img { padding: 0; overflow: hidden; cursor: zoom-in; }
.honor-item .cert-img {
  width: 100%; height: 190px;
  object-fit: cover;
  display: block;
  transition: transform .4s;
}
.honor-item.has-img:hover .cert-img { transform: scale(1.06); }
.honor-item .cert-body { padding: 16px 14px 20px; }
.honor-item .cert-body h4 { margin-bottom: 4px; }
.honor-item .cert-zoom {
  position: absolute; top: 10px; right: 10px;
  width: 32px; height: 32px; border-radius: 50%;
  background: rgba(0,0,0,.45); color: #fff;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: .3s;
}
.honor-item.has-img { position: relative; }
.honor-item.has-img:hover .cert-zoom { opacity: 1; }
/* 图片灯箱 */
.lightbox-mask {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.82);
  display: none; align-items: center; justify-content: center;
  z-index: 1000; padding: 40px;
  cursor: zoom-out;
}
.lightbox-mask.show { display: flex; }
.lightbox-mask img {
  max-width: 92%; max-height: 88vh;
  border-radius: 6px;
  box-shadow: 0 20px 80px rgba(0,0,0,.5);
  animation: lbIn .25s ease;
}
.lightbox-mask .lb-cap {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  color: #fff; font-size: 15px; letter-spacing: 1px;
  background: rgba(0,0,0,.5); padding: 8px 22px; border-radius: 20px;
}
.lightbox-mask .lb-close {
  position: absolute; top: 22px; right: 30px;
  color: #fff; font-size: 34px; cursor: pointer; line-height: 1;
}
@keyframes lbIn { from { opacity: 0; transform: scale(.92); } to { opacity: 1; transform: scale(1); } }

/* ---------- 联系我们 ---------- */
.contact-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-bottom: 50px; }
.contact-card {
  background: #fff;
  border: 1px solid var(--border);
  padding: 34px 20px;
  text-align: center;
  transition: .3s;
}
.contact-card:hover { transform: translateY(-6px); box-shadow: 0 12px 30px rgba(0,0,0,.1); }
.contact-card .c-icon {
  width: 66px; height: 66px; margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex; align-items: center; justify-content: center;
}
.contact-card h4 { font-size: 16px; margin-bottom: 8px; }
.contact-card p { font-size: 14px; color: var(--gray); }
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.map-box {
  background: linear-gradient(135deg, #e8eef5, #dde5ee);
  border: 1px solid var(--border);
  min-height: 380px;
  position: relative;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.map-pin {
  text-align: center;
  color: var(--gray);
}
.map-pin .pin-icon {
  width: 54px; height: 54px; margin: 0 auto 12px;
  background: var(--primary);
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 20px rgba(230,0,18,.4);
  animation: bounce 2s infinite;
}
.map-pin .pin-icon::after { content: ""; width: 18px; height: 18px; background: #fff; border-radius: 50%; }
@keyframes bounce { 0%,100% { transform: rotate(-45deg) translate(0); } 50% { transform: rotate(-45deg) translate(-6px, 6px); } }
.msg-form { background: #fff; border: 1px solid var(--border); padding: 34px; }
.msg-form h3 { font-size: 22px; margin-bottom: 6px; }
.msg-form .form-sub { color: var(--light-gray); font-size: 13px; margin-bottom: 22px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { margin-bottom: 16px; }
.form-row .form-group { margin-bottom: 0; }
.form-group input, .form-group textarea {
  width: 100%;
  border: 1px solid var(--border);
  padding: 12px 14px;
  font-size: 14px;
  font-family: inherit;
  transition: .3s;
  background: var(--bg-light);
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(230,0,18,.08); }
.form-group textarea { height: 120px; resize: vertical; }
.submit-btn {
  width: 100%;
  padding: 13px;
  background: var(--primary);
  color: #fff;
  border: none;
  font-size: 16px;
  letter-spacing: 4px;
  cursor: pointer;
  transition: .3s;
  font-family: inherit;
}
.submit-btn:hover { background: var(--primary-dark); }

/* ---------- 新闻内页 ---------- */
.news-page-list li {
  display: flex; gap: 26px;
  background: #fff;
  border: 1px solid var(--border);
  padding: 22px 26px;
  margin-bottom: 18px;
  transition: .3s;
  cursor: pointer;
  align-items: center;
}
.news-page-list li:hover { border-color: var(--primary); box-shadow: 0 8px 22px rgba(0,0,0,.08); }
.news-page-list .news-date { width: 84px; padding-right: 24px; }
.news-page-list .news-date .d { font-size: 32px; }
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 36px; }
.pagination a, .pagination span {
  min-width: 40px; height: 40px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  color: var(--gray);
  background: #fff;
  padding: 0 10px;
}
.pagination .cur { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination a:hover { border-color: var(--primary); color: var(--primary); }

/* ---------- 案例内页 ---------- */
.case-page-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1280px) {
  /* 导航项较多时优先保证一行排齐：隐藏右侧电话，缩小间距 */
  .nav-tel { display: none; }
  .nav > ul > li > a { padding: 34px 11px; font-size: 15px; }
  .nav > ul > li > a::after { left: 11px; right: 11px; }
  .logo-text h1 { font-size: 18px; }
}
@media (max-width: 992px) {
  .product-grid, .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid, .case-page-grid { grid-template-columns: repeat(2, 1fr); }
  .honor-grid, .contact-cards { grid-template-columns: repeat(2, 1fr); }
  .about-wrap, .contact-layout, .news-layout { grid-template-columns: 1fr; }
  .about-visual { height: 320px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-tel { display: none; }
}
@media (max-width: 768px) {
  .topbar { display: none; }
  .header .container { height: 66px; }
  .logo-text h1 { font-size: 16px; }
  .menu-toggle { display: block; }
  .nav {
    position: fixed;
    top: 66px; left: 0; right: 0;
    background: #fff;
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s;
    box-shadow: 0 10px 20px rgba(0,0,0,.1);
  }
  .nav.open { max-height: 80vh; overflow-y: auto; }
  .nav > ul { flex-direction: column; }
  .nav > ul > li > a { padding: 14px 20px; border-bottom: 1px solid var(--border); }
  .nav > ul > li > a::after { display: none; }
  .dropdown { position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none; border-top: none; background: var(--bg-light); display: none; }
  .nav li.m-open .dropdown { display: block; }
  .banner { height: 380px; }
  .slide-content h2 { font-size: 28px; }
  .slide-content p { font-size: 14px; }
  .banner-arrow { display: none; }
  .section { padding: 46px 0; }
  .sec-title h2 { font-size: 25px; }
  .product-grid, .adv-grid, .case-grid, .case-page-grid, .honor-grid, .contact-cards { grid-template-columns: 1fr; }
  .cta-band .container { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .news-item-body p { max-width: 100%; }
  .product-page-layout { grid-template-columns: 1fr; }
  .float-bar { right: 10px; bottom: 70px; }
  .page-banner { height: 200px; }
  .page-banner h2 { font-size: 28px; }
}

/* ---------- 下载中心 ---------- */
.dl-list { max-width: 960px; margin: 0 auto; }
.dl-item {
  display: flex; align-items: center; gap: 20px;
  background: #fff;
  border: 1px solid var(--border);
  padding: 22px 26px;
  margin-bottom: 14px;
  transition: .3s;
}
.dl-item:hover { border-color: var(--primary); box-shadow: 0 8px 22px rgba(0,0,0,.08); transform: translateX(4px); }
.dl-icon {
  flex-shrink: 0;
  width: 58px; height: 58px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
}
.dl-icon.doc { background: linear-gradient(135deg, #e6f4ff, #bae0ff); }
.dl-icon.soft { background: linear-gradient(135deg, #f6ffed, #b7eb8f); }
.dl-body { flex: 1; min-width: 0; }
.dl-body h3 { font-size: 16.5px; margin-bottom: 4px; }
.dl-body p { font-size: 13px; color: var(--gray); margin-bottom: 8px; }
.dl-meta { display: flex; gap: 18px; flex-wrap: wrap; font-size: 12.5px; color: var(--light-gray); }
.dl-btn {
  flex-shrink: 0;
  padding: 10px 26px;
  background: var(--primary);
  color: #fff;
  border-radius: 30px;
  font-size: 14px;
  transition: .3s;
}
.dl-btn:hover { background: var(--primary-dark); box-shadow: 0 4px 12px rgba(230,0,18,.3); }
.dl-btn.disabled { background: #d9d9d9; cursor: not-allowed; }
.dl-empty { text-align: center; color: var(--light-gray); padding: 40px 0; }
.dl-notice {
  max-width: 960px; margin: 30px auto 0;
  background: #fffbe6;
  border: 1px solid #ffe58f;
  border-radius: 8px;
  padding: 16px 22px;
  font-size: 14px;
  color: #874d00;
}
@media (max-width: 640px) {
  .dl-item { flex-direction: column; align-items: flex-start; gap: 12px; }
  .dl-btn { align-self: stretch; text-align: center; }
}

/* ---------- 产品页工具条（搜索/分类标题） ---------- */
.pd-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
.pd-current {
  font-size: 19px;
  font-weight: 700;
  padding-left: 12px;
  border-left: 4px solid var(--primary);
  line-height: 1.3;
}
.pd-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: 9px 18px;
  min-width: 270px;
  transition: .3s;
}
.pd-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(230,0,18,.08); }
.pd-search input {
  border: none;
  outline: none;
  flex: 1;
  font-size: 14px;
  font-family: inherit;
  background: transparent;
}
@media (max-width: 640px) {
  .pd-search { min-width: 0; width: 100%; }
}

/* ---------- 产品详情页参数表 ---------- */
.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 24px; }
.spec-table td {
  border: 1px solid var(--border);
  padding: 11px 16px;
  font-size: 14px;
}
.spec-table td:first-child {
  width: 34%;
  background: #fafafa;
  color: var(--gray);
  font-weight: 600;
}
.spec-table tr:hover td { background: #fffafa; }

/* ---------- 关于我们 · 子栏目选项卡 ---------- */
.about-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 0;
}
.about-tab {
  padding: 13px 44px;
  background: #fff;
  border: 1px solid var(--border);
  border-bottom: none;
  color: var(--gray);
  font-size: 16px;
  font-family: inherit;
  cursor: pointer;
  transition: .3s;
  border-radius: 8px 8px 0 0;
  position: relative;
  top: 1px;
}
.about-tab:hover { color: var(--primary); }
.about-tab.active {
  background: #fff;
  color: var(--primary);
  font-weight: 700;
  border-top: 3px solid var(--primary);
  padding-top: 11px;
}
.about-panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 0 0 8px 8px;
  padding: 44px 52px;
  min-height: 320px;
}
.about-panel-head { text-align: center; margin-bottom: 28px; }
.about-panel-head h3 { font-size: 26px; }
.about-panel-head .en { font-size: 12px; color: var(--light-gray); letter-spacing: 4px; }
.about-panel-body { color: #444; font-size: 15px; line-height: 2; }
.about-panel-body p { margin-bottom: 14px; }
.about-panel-body h4 {
  font-size: 18px;
  margin: 26px 0 10px;
  padding-left: 12px;
  border-left: 4px solid var(--primary);
}
.about-panel-body img { max-width: 100%; border-radius: 8px; margin: 10px 0; }
.about-panel-body table { width: 100%; border-collapse: collapse; margin: 14px 0; }
.about-panel-body td, .about-panel-body th { border: 1px solid var(--border); padding: 9px 14px; font-size: 14px; }
@media (max-width: 768px) {
  .about-tab { padding: 10px 22px; font-size: 14.5px; }
  .about-panel { padding: 26px 18px; }
}