/* =========================================================
   新启源 · 企业官网样式
   Nanjing Xinqiyuan Detection Equipment - Website Stylesheet
   ========================================================= */
:root {
  --navy: #0E2A47;
  --navy-2: #123B63;
  --blue: #1B5FA8;
  --blue-2: #2C7BE5;
  --orange: #F97316;
  --orange-2: #FF8A3D;
  --amber: #FFB03A;
  --ink: #1E293B;
  --gray: #64748B;
  --line: #E2E8F0;
  --bg: #F5F7FA;
  --bg-2: #EDF1F6;
  --white: #FFFFFF;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(14, 42, 71, 0.08);
  --shadow-lg: 0 20px 50px rgba(14, 42, 71, 0.14);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 15px; }

.container { width: min(1180px, 92%); margin: 0 auto; }

/* ---------- 通用组件 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 30px; border-radius: 8px; font-size: 16px; font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: linear-gradient(135deg, var(--orange-2), var(--orange)); color: #fff; box-shadow: 0 8px 20px rgba(249, 115, 22, 0.35); }
.btn-primary:hover { box-shadow: 0 12px 26px rgba(249, 115, 22, 0.45); }
.btn-outline { border: 2px solid rgba(255, 255, 255, 0.7); color: #fff; }
.btn-outline:hover { background: rgba(255, 255, 255, 0.12); }
.btn-ghost { border: 2px solid var(--navy); color: var(--navy); }
.btn-ghost:hover { background: var(--navy); color: #fff; }
.btn-sm { padding: 9px 20px; font-size: 14px; }

.kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; font-weight: 700; letter-spacing: 2px; color: var(--orange);
  text-transform: uppercase;
}
.kicker::before { content: ""; width: 34px; height: 3px; border-radius: 2px; background: var(--orange); }

.section { padding: 88px 0; }
.section-alt { background: var(--bg); }
.section-head { max-width: 720px; margin: 0 auto 54px; text-align: center; }
.section-head h2 { font-size: 34px; color: var(--navy); margin: 14px 0 14px; line-height: 1.35; }
.section-head p { color: var(--gray); font-size: 16px; }
.section-head.left { text-align: left; margin-left: 0; }

/* ---------- 顶栏 / 头部 ---------- */
.topbar { background: var(--navy); color: #b9cbe0; font-size: 13.5px; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 40px; }
.topbar-right { display: flex; align-items: center; gap: 22px; }
.topbar-phone { color: var(--amber); font-weight: 600; letter-spacing: 0.5px; }
.topbar-phone:hover { color: #fff; }
.lang-switch {
  color: #cfe0f2; border: 1px solid rgba(255, 255, 255, 0.35); border-radius: 999px;
  padding: 3px 14px; font-size: 12.5px; font-weight: 700; letter-spacing: 1px;
  transition: all 0.2s;
}
.lang-switch:hover { background: #fff; color: var(--navy); }

.site-header { position: sticky; top: 0; z-index: 100; background: #fff; transition: box-shadow 0.25s; }
.site-header.scrolled { box-shadow: 0 6px 24px rgba(14, 42, 71, 0.1); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 20px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.25; }
.logo-text strong { font-size: 20px; color: var(--navy); letter-spacing: 1px; }
.logo-text em { font-style: normal; font-size: 11px; letter-spacing: 2px; color: var(--gray); }
.logo-light .logo-text strong { color: #fff; }
.logo-light .logo-text em { color: #9fb6cf; }

.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
  padding: 9px 16px; border-radius: 8px; font-size: 15.5px; font-weight: 600;
  color: #33475F; transition: all 0.2s; position: relative;
}
.nav a:hover { color: var(--orange); background: #fff5ee; }
.nav a.active { color: var(--orange); }
.nav a.active::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 2px;
  height: 3px; border-radius: 2px; background: var(--orange);
}
.nav-phone { display: none; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span { width: 24px; height: 2.5px; border-radius: 2px; background: var(--navy); transition: all 0.25s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
body.no-scroll { overflow: hidden; }

/* ---------- 首页 Hero ---------- */
.hero {
  background:
    radial-gradient(1000px 500px at 85% -10%, rgba(27, 95, 168, 0.35), transparent 60%),
    linear-gradient(140deg, #0B2338 0%, var(--navy) 55%, #10305A 100%);
  color: #fff; overflow: hidden; position: relative;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; padding: 92px 0 100px; }
.hero-copy h1 { font-size: 46px; line-height: 1.3; margin: 18px 0 20px; letter-spacing: 1px; }
.hero-copy h1 .accent { color: var(--amber); }
.hero-sub { font-size: 17px; color: #b9cbe0; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; margin: 34px 0 30px; flex-wrap: wrap; }
.hero-points { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-points li {
  font-size: 13.5px; color: #cfe0f2; border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px; padding: 6px 16px; backdrop-filter: blur(4px);
}
.hero-media img { width: 100%; max-width: 540px; height: auto; border-radius: 22px; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35); }

/* ---------- 数据条 ---------- */
.stats { background: #fff; margin-top: -56px; position: relative; z-index: 5; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.stat { padding: 30px 20px; text-align: center; border-right: 1px solid var(--line); }
.stat:last-child { border-right: none; }
.stat strong { display: block; font-size: 34px; color: var(--navy); font-weight: 800; line-height: 1.2; }
.stat strong em { font-style: normal; color: var(--orange); }
.stat span { font-size: 14px; color: var(--gray); }

/* ---------- 产品分类 ---------- */
.cat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.cat-card {
  display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 22px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 26px;
  transition: transform 0.25s, box-shadow 0.25s;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.cat-card .c-img { background: var(--bg); border-radius: 14px; padding: 14px; }
.cat-card h3 { font-size: 22px; color: var(--navy); margin-bottom: 10px; }
.cat-card p { color: var(--gray); font-size: 14.5px; margin-bottom: 12px; }
.cat-card ul li { font-size: 14px; color: #33475F; padding: 4px 0 4px 22px; position: relative; }
.cat-card ul li::before { content: ""; position: absolute; left: 0; top: 12px; width: 8px; height: 8px; border-radius: 50%; background: var(--orange); }
.cat-link { display: inline-block; margin-top: 14px; color: var(--orange); font-weight: 700; font-size: 14.5px; }
.cat-link:hover { text-decoration: underline; }

/* ---------- 产品卡片 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.section-alt .product-grid { grid-template-columns: repeat(4, 1fr); }
.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
  display: flex; flex-direction: column; transition: transform 0.25s, box-shadow 0.25s;
  animation: fadeIn 0.4s ease both;
  cursor: pointer;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-card.hide { display: none; }
.p-img { position: relative; background: var(--bg); }
.p-img img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.p-img-placeholder { aspect-ratio: 4 / 3; display: flex; align-items: center; justify-content: center; color: var(--text-secondary, #6B7280); font-size: 13px; background: linear-gradient(135deg, #f4f3ee, #eceae2); }
.p-tag {
  position: absolute; top: 14px; left: 14px; background: var(--navy); color: #fff;
  font-size: 12.5px; padding: 5px 13px; border-radius: 999px; letter-spacing: 1px;
}
.p-body { padding: 20px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.p-body h3 { font-size: 17.5px; color: var(--navy); }
.p-model { font-size: 13px; color: var(--orange); font-weight: 700; margin: 4px 0 12px; letter-spacing: 1px; }
.p-body .detail-brief { flex: 1; font-size: 13.5px; color: var(--gray); line-height: 1.65; margin: 0 0 14px; }
.p-specs { flex: 1; }
.p-specs li { font-size: 13.5px; color: var(--gray); padding: 3px 0 3px 18px; position: relative; }
.p-specs li::before { content: ""; position: absolute; left: 0; top: 10px; width: 7px; height: 7px; border-radius: 2px; background: var(--blue-2); }
.p-actions { display: flex; gap: 10px; margin-top: 16px; }
.p-actions .btn { flex: 1; padding: 10px 8px; font-size: 14px; }



/* ---------- 产品搜索 ---------- */
.search-bar { display: flex; justify-content: center; margin-bottom: 20px; }
.search-box { position: relative; width: min(440px, 100%); }
.search-box input {
  width: 100%; border: 1.5px solid var(--line); border-radius: 999px; padding: 12px 46px 12px 46px;
  font-size: 14.5px; background: #fff; outline: none; transition: border-color 0.2s, box-shadow 0.2s;
}
.search-box input:focus { border-color: var(--blue-2); box-shadow: 0 0 0 3px rgba(44, 123, 229, 0.12); }
.search-icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); width: 20px; height: 20px; color: var(--gray); pointer-events: none; }
.search-clear {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  width: 30px; height: 30px; border-radius: 50%; border: none; background: #EDF1F6;
  color: #64748B; cursor: pointer; font-size: 14px; display: none;
}
.search-clear.show { display: block; }
.search-clear:hover { background: var(--orange); color: #fff; }
.search-count { text-align: center; font-size: 13.5px; color: var(--gray); margin-bottom: 14px; }
.search-empty { text-align: center; padding: 34px 0; color: var(--gray); font-size: 15px; display: none; }
.search-empty.show { display: block; }
.search-empty a { color: var(--orange); font-weight: 700; }
.search-empty a:hover { text-decoration: underline; }

/* ---------- 产品筛选 ---------- */
.filter-bar { display: flex; justify-content: center; gap: 10px; margin-bottom: 44px; flex-wrap: wrap; }
.filter-btn {
  padding: 10px 26px; border-radius: 999px; border: 1.5px solid var(--line);
  font-size: 15px; font-weight: 600; color: #33475F; background: #fff; transition: all 0.2s;
}
.filter-btn:hover { border-color: var(--orange); color: var(--orange); }
.filter-btn.active { background: var(--navy); border-color: var(--navy); color: #fff; }

/* ---------- 特性 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature {
  background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 30px 26px;
  transition: transform 0.25s, box-shadow 0.25s;
}
.feature:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature .f-icon {
  width: 58px; height: 58px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(135deg, #fff0e6, #ffe3cf); color: var(--orange); margin-bottom: 18px;
}
.feature .f-icon svg { width: 30px; height: 30px; }
.feature h3 { font-size: 18px; color: var(--navy); margin-bottom: 8px; }
.feature p { font-size: 14px; color: var(--gray); }

/* ---------- 应用行业 ---------- */
.app-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.app-card {
  background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 26px 18px;
  text-align: center; transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.app-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: #ffd9bd; }
.app-card .a-icon { width: 52px; height: 52px; margin: 0 auto 14px; border-radius: 50%; display: grid; place-items: center; background: var(--bg); color: var(--blue); }
.app-card .a-icon svg { width: 26px; height: 26px; }
.app-card h3 { font-size: 16px; color: var(--navy); margin-bottom: 6px; }
.app-card p { font-size: 12.5px; color: var(--gray); }


/* ---------- 首页资讯门户式 ---------- */

/* ---------- 新闻 ---------- */
.news-portal { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-portal .btn { grid-column: 1 / -1; justify-self: center; margin-top: 10px; }
.news-card {
  background: #fff; border: 1px solid var(--line); border-radius: 16px; overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: #ffd9bd; }
.news-card > a { display: block; overflow: hidden; }
.news-card img { aspect-ratio: 16 / 9; object-fit: cover; width: 100%; display: block; transition: transform 0.35s ease; }
.news-card:hover img { transform: scale(1.04); }
@media (max-width: 860px) {
  .news-portal { grid-template-columns: 1fr; }
}
.news-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.news-meta { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--gray); margin-bottom: 10px; }
.news-date { background: #fff5ee; color: var(--orange); font-weight: 700; padding: 2px 12px; border-radius: 999px; }
.news-body h3 { font-size: 17px; color: var(--navy); line-height: 1.5; margin-bottom: 8px; }
.news-body h3 a:hover { color: var(--orange); }
.news-body p { font-size: 13.5px; color: var(--gray); flex: 1; }
.news-more { margin-top: 12px; font-size: 14px; color: var(--orange); font-weight: 700; }
.news-more:hover { text-decoration: underline; }

/* ---------- CTA 横幅 ---------- */
.cta-band {
  background:
    radial-gradient(700px 300px at 80% 120%, rgba(249, 115, 22, 0.35), transparent 65%),
    linear-gradient(135deg, #0B2338, var(--navy) 60%, #10305A);
  color: #fff; padding: 72px 0; text-align: center;
}
.cta-band h2 { font-size: 32px; margin-bottom: 12px; }
.cta-band p { color: #b9cbe0; margin-bottom: 30px; }
.cta-band .btn { margin: 0 8px; }

/* ---------- 内页顶部 ---------- */
.page-hero {
  background:
    radial-gradient(800px 320px at 85% -20%, rgba(27, 95, 168, 0.4), transparent 60%),
    linear-gradient(140deg, #0B2338, var(--navy) 60%, #10305A);
  color: #fff; padding: 74px 0; text-align: center;
}
.page-hero h1 { font-size: 38px; letter-spacing: 1px; margin-bottom: 14px; }
.page-hero p { color: #b9cbe0; max-width: 640px; margin: 0 auto; }
.breadcrumb { font-size: 13.5px; color: #9fb6cf; margin-bottom: 16px; }
.breadcrumb a:hover { color: var(--amber); }
.breadcrumb span { margin: 0 8px; color: #5b7390; }

/* ---------- 关于页 ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 56px; align-items: center; }
.about-grid .a-img img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; display: block; }
.about-copy h2 { font-size: 30px; color: var(--navy); margin: 12px 0 18px; line-height: 1.4; }
.about-copy p { color: var(--gray); margin-bottom: 14px; }
.about-chips { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.about-chips span { background: var(--bg); border: 1px solid var(--line); color: var(--navy); font-size: 13.5px; font-weight: 600; border-radius: 999px; padding: 7px 18px; }

/* ---------- 发展历程（中轴交替时间轴） ---------- */
.tl2 {
  position: relative; display: grid; grid-template-columns: 1fr 1fr;
  column-gap: 104px; row-gap: 24px; max-width: 1000px; margin: 0 auto; padding-bottom: 34px;
}
.tl2::before {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%);
  top: 30px; bottom: 14px; width: 3px; border-radius: 2px;
  background: linear-gradient(var(--orange), var(--blue));
}
.tl2::after {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%); bottom: 0;
  border-left: 7px solid transparent; border-right: 7px solid transparent; border-top: 11px solid var(--blue);
}
.tl2-item { position: relative; }
.tl2-item:nth-child(odd) { grid-column: 1; }
.tl2-item:nth-child(even) { grid-column: 2; margin-top: 64px; }
.tl2-item::before {
  content: ""; position: absolute; top: 26px; width: 15px; height: 15px; border-radius: 50%;
  background: #fff; border: 4px solid var(--orange); box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.15); z-index: 1;
}
.tl2-item:nth-child(odd)::before { right: -59.5px; }
.tl2-item:nth-child(even)::before { left: -59.5px; }
.tl2-card {
  background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px;
  box-shadow: var(--shadow-sm); transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.tl2-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(249, 115, 22, 0.45); }
.tl2-tag {
  display: inline-block; background: var(--orange); color: #fff; font-size: 13.5px; font-weight: 700;
  border-radius: 999px; padding: 3px 14px; margin-bottom: 10px; letter-spacing: 0.5px;
}
.tl2-card h3 { font-size: 16.5px; color: var(--navy); margin: 0 0 6px; }
.tl2-card p { font-size: 14px; color: var(--gray); }
@media (max-width: 860px) {
  .tl2 { grid-template-columns: 1fr; column-gap: 0; row-gap: 20px; padding-left: 44px; }
  .tl2::before { left: 10px; transform: none; }
  .tl2::after { left: 4.5px; transform: none; }
  .tl2-item:nth-child(odd), .tl2-item:nth-child(even) { grid-column: 1; margin-top: 0; }
  .tl2-item:nth-child(odd)::before, .tl2-item:nth-child(even)::before { left: -40px; right: auto; }
}

.quality-grid, .culture-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.culture-card {
  border-radius: 18px; padding: 36px 28px; color: #fff; position: relative; overflow: hidden;
}
.culture-card::after {
  content: ""; position: absolute; right: -40px; top: -40px; width: 150px; height: 150px;
  border-radius: 50%; background: rgba(255, 255, 255, 0.08);
}
.culture-card.c1 { background: linear-gradient(135deg, #123B63, #0E2A47); }
.culture-card.c2 { background: linear-gradient(135deg, #C2410C, #F97316); }
.culture-card.c3 { background: linear-gradient(135deg, #1B5FA8, #2C7BE5); }
.culture-card h3 { font-size: 21px; margin-bottom: 10px; }
.culture-card p { font-size: 14px; color: rgba(255, 255, 255, 0.85); }

/* ---------- 新闻列表 ---------- */
.news-list { display: grid; gap: 26px; max-width: 880px; margin: 0 auto; }
.news-row {
  display: grid; grid-template-columns: 250px 1fr; gap: 26px; background: #fff;
  border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s;
}
.news-row:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.news-row img { width: 100%; height: 100%; object-fit: cover; }
.news-row .news-body { padding: 24px 26px; }
.news-row h2 { font-size: 20px; color: var(--navy); line-height: 1.5; margin-bottom: 8px; }
.news-row h2 a:hover { color: var(--orange); }
.news-row p { font-size: 14px; color: var(--gray); }

/* ---------- 文章页 ---------- */
.article { max-width: 760px; margin: 0 auto; padding: 64px 0 88px; }
.article-head { text-align: center; margin-bottom: 34px; }
.article-head h1 { font-size: 30px; color: var(--navy); line-height: 1.45; margin: 16px 0 14px; }
.article-head .news-meta { justify-content: center; }
.article img.lead { border-radius: 18px; margin-bottom: 34px; width: 100%; }
.article h2 { font-size: 21px; color: var(--navy); margin: 30px 0 12px; }
.article p { color: #3b4c60; margin-bottom: 16px; font-size: 15.5px; }
.article .back-link { display: inline-flex; align-items: center; gap: 6px; margin-bottom: 26px; color: var(--gray); font-size: 14px; font-weight: 600; }
.article .back-link:hover { color: var(--orange); }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 32px; align-items: start; max-width: 720px; margin: 0 auto; }
.info-card {
  background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 22px 24px;
  display: flex; gap: 16px; align-items: flex-start; margin-bottom: 18px;
  transition: transform 0.25s, box-shadow 0.25s;
}
.info-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.info-card .i-icon { flex: none; width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; background: #fff0e6; color: var(--orange); }
.info-card .i-icon svg { width: 24px; height: 24px; }
.info-card h3 { font-size: 15px; color: var(--gray); font-weight: 600; margin-bottom: 3px; }
.info-card p, .info-card a { font-size: 16px; color: var(--navy); font-weight: 700; }
.info-card a:hover { color: var(--orange); }

.form-card { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 34px 32px; box-shadow: var(--shadow); }
.form-card h2 { font-size: 24px; color: var(--navy); margin-bottom: 6px; }
.form-card > p { font-size: 14px; color: var(--gray); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.phone-prefix-row { display: flex; gap: 8px; }
.phone-prefix-row select { flex: 0 0 132px; width: 132px; }
.phone-prefix-row input { flex: 1; min-width: 0; }
.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-size: 14px; font-weight: 600; color: #33475F; margin-bottom: 7px; }
.form-field label .req { color: var(--orange); }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; border: 1.5px solid var(--line); border-radius: 10px; padding: 12px 14px;
  background: #fbfcfe; transition: border-color 0.2s, box-shadow 0.2s; color: var(--ink);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--blue-2); box-shadow: 0 0 0 3px rgba(44, 123, 229, 0.12);
}
.form-field textarea { min-height: 110px; resize: vertical; }
.form-note { font-size: 13px; color: var(--gray); margin-top: 6px; }

/* ---------- 联系人卡片 ---------- */
.section-title-center { text-align: center; font-size: 32px; color: var(--navy); margin-bottom: 8px; }
.section-subtitle-center { text-align: center; font-size: 15px; color: var(--gray); margin-bottom: 36px; }
.contact-rows { display: flex; flex-direction: column; gap: 20px; }
.contact-row {
  background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 24px 28px;
  display: flex; align-items: center; gap: 24px; box-shadow: 0 2px 8px rgba(10,32,54,0.04);
  transition: box-shadow 0.2s, border-color 0.2s;
}
.contact-row:hover { box-shadow: 0 8px 24px rgba(10,32,54,0.08); border-color: var(--blue-2); }
.contact-row-photo { flex: none; width: 80px; height: 80px; }
.contact-photo {
  width: 80px; height: 80px; border-radius: 50%; object-fit: cover;
  border: 3px solid #f0f4f8; display: block;
}
.contact-photo-placeholder {
  width: 80px; height: 80px; border-radius: 50%;
  background: linear-gradient(135deg, #2c7be5, #0e7a5f); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 32px; font-weight: 700;
}
.contact-row-info { flex: 1; min-width: 0; }
.contact-row-info h3 { font-size: 18px; color: var(--navy); margin-bottom: 4px; }
.contact-role { font-size: 13px; color: var(--orange); font-weight: 400; }
.contact-region { font-size: 13px; color: var(--gray); margin-bottom: 10px; }
.contact-row-details { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.contact-line { display: flex; align-items: center; gap: 8px; font-size: 14px; color: #33475f; margin: 0; }
.contact-line svg { color: var(--blue-2); flex-shrink: 0; }
.contact-line a { color: #33475f; font-weight: 500; }
.contact-line a:hover { color: var(--orange); }
.contact-row-qr { flex: none; display: flex; flex-direction: column; align-items: center; gap: 4px; }
.contact-qr-label { font-size: 12px; color: var(--gray); }
.contact-qr { width: 100px; height: 100px; border-radius: 8px; background: #fff; padding: 4px; object-fit: contain; border: 1px solid var(--line); }
@media (max-width: 768px) {
  .contact-row { flex-direction: column; align-items: flex-start; gap: 16px; padding: 20px; }
  .contact-row-photo { width: 64px; height: 64px; }
  .contact-photo, .contact-photo-placeholder { width: 64px; height: 64px; font-size: 26px; }
  .contact-row-qr { align-self: center; }
  .contact-row-details { flex-direction: column; gap: 6px; }
}

/* CMS 后台联系人编辑卡片 */
.contact-edit-card { border: 1px solid var(--c-border, #e2e8f0); border-radius: 12px; padding: 16px; margin-bottom: 16px; background: var(--c-bg, #f8fafc); }
.contact-edit-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--c-border, #e2e8f0); }
.contact-edit-name { font-weight: 600; font-size: 15px; color: var(--c-text, #1e293b); }

/* ---------- 页脚 ---------- */
.site-footer { background: #0A2036; color: #9fb6cf; margin-top: 88px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 0.8fr 0.9fr 1.2fr; gap: 40px; padding: 64px 0 48px; }
.footer-brand p { font-size: 14px; margin-top: 18px; line-height: 1.8; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; letter-spacing: 1px; }
.footer-col a { display: block; font-size: 14px; padding: 5px 0; transition: color 0.2s; }
.footer-col a:hover { color: var(--amber); }
.footer-col p { font-size: 14px; padding: 5px 0; }
.footer-col p a { display: inline; padding: 0; }
.wechat-line { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-start; }
.wechat-item { display: inline-flex; flex-direction: column; align-items: center; gap: 4px; }
.wechat-id { font-size: 13px; }
.wechat-qr { width: 80px; height: 80px; border-radius: 6px; background: #fff; padding: 3px; object-fit: contain; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 20px 0; font-size: 13px; }
.footer-bottom-inner { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ---------- 浮动元素 ---------- */
.back-top {
  position: fixed; right: 26px; bottom: 30px; width: 46px; height: 46px; border-radius: 50%;
  background: var(--navy); color: #fff; display: grid; place-items: center;
  box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: all 0.3s; z-index: 90;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--orange); }

.toast {
  position: fixed; left: 50%; bottom: 34px; transform: translate(-50%, 20px);
  background: var(--navy); color: #fff; padding: 13px 26px; border-radius: 999px;
  font-size: 14.5px; opacity: 0; visibility: hidden; transition: all 0.3s; z-index: 200;
  box-shadow: var(--shadow-lg);
}
.toast.show { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .section-alt .product-grid { grid-template-columns: repeat(2, 1fr); }
  .app-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-copy h1 { font-size: 38px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed; inset: 0 0 0 auto; width: min(320px, 82vw); background: #fff;
    flex-direction: column; align-items: stretch; padding: 90px 26px 30px; gap: 4px;
    transform: translateX(100%); transition: transform 0.3s ease; box-shadow: -20px 0 50px rgba(14, 42, 71, 0.2);
  }
  .nav.open { transform: none; }
  .nav a { padding: 13px 16px; font-size: 16.5px; border-radius: 10px; }
  .nav a.active::after { display: none; }
  .nav a.active { background: #fff5ee; }
  .nav-phone { display: block; margin-top: 16px; background: var(--navy); color: #fff !important; text-align: center; }
  .hero-grid { grid-template-columns: 1fr; padding: 64px 0 84px; }
  .hero-media { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .cat-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid, .quality-grid, .culture-grid { grid-template-columns: 1fr; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .news-row { grid-template-columns: 1fr; }
  .news-row img { aspect-ratio: 16 / 9; }
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 28px; }
  .page-hero h1 { font-size: 30px; }
}


/* ---------- 首页轮播 ---------- */
.hero-slider { display: grid; position: relative; }
.hero-slide {
  grid-area: 1 / 1; opacity: 0; visibility: hidden; z-index: 1;
  transition: opacity 0.7s ease, visibility 0.7s ease;
}
.hero-slide.active { opacity: 1; visibility: visible; z-index: 2; }
.hero-slide.active .hero-copy > * { animation: heroUp 0.55s ease both; }
.hero-slide.active .hero-copy > *:nth-child(2) { animation-delay: 0.08s; }
.hero-slide.active .hero-copy > *:nth-child(3) { animation-delay: 0.16s; }
.hero-slide.active .hero-copy > *:nth-child(4) { animation-delay: 0.24s; }
.hero-slide.active .hero-copy > *:nth-child(5) { animation-delay: 0.32s; }
@keyframes heroUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

/* 全屏轮播（图片/视频背景 + 蒙层 + 文字叠加） */
.hero-slide.hero-full { min-height: 620px; display: flex; align-items: center; }
.hero-bg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0;
}
.hero-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(105deg, rgba(4, 17, 30, 0.93) 0%, rgba(8, 26, 44, 0.74) 36%, rgba(11, 35, 56, 0.30) 68%, rgba(4, 17, 30, 0.10) 100%);
}
.hero-full-content { position: relative; z-index: 2; padding: 96px 0 110px; }
.hero-full .hero-copy { max-width: 700px; }
.hero-full .hero-copy h1 { font-size: 52px; line-height: 1.24; margin: 20px 0 22px; }
.hero-full .hero-sub { color: #e2edf9; font-size: 18px; text-shadow: 0 2px 14px rgba(0, 0, 0, 0.5); }
.hero-full .kicker, .hero-full h1 { text-shadow: 0 2px 18px rgba(0, 0, 0, 0.55); }
@media (max-width: 860px) {
  .hero-slide.hero-full { min-height: 480px; }
  .hero-full-content { padding: 64px 0 84px; }
  .hero-full .hero-copy { max-width: 100%; }
}

.slider-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 20;
  width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(255, 255, 255, 0.1); color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  transition: background 0.2s, border-color 0.2s;
}
.slider-arrow:hover { background: var(--orange); border-color: var(--orange); }
.slider-prev { left: 20px; }
.slider-next { right: 20px; }
.slider-dots {
  position: absolute; bottom: 76px; left: 0; right: 0; z-index: 20;
  display: flex; justify-content: center; gap: 10px;
}
.slider-dot {
  width: 10px; height: 10px; border-radius: 999px; padding: 0;
  background: rgba(255, 255, 255, 0.35); transition: all 0.3s;
}
.slider-dot.active { width: 28px; background: var(--amber); }

@media (max-width: 860px) {
  .slider-arrow { width: 38px; height: 38px; }
  .slider-prev { left: 10px; }
  .slider-next { right: 10px; }
  .slider-dots { bottom: 66px; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-slide.active .hero-copy > * { animation: none; }
}






/* ---------- 淘宝式图片放大镜 ---------- */
.zoom-wrap { border-radius: 14px; overflow: hidden; cursor: crosshair; position: relative; }
.zoom-lens {
  position: absolute; display: none; width: 150px; height: 150px;
  border: 1px solid #fff; box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.25);
  background: rgba(255, 255, 255, 0.35); pointer-events: none; z-index: 7;
}
.zoom-result {
  position: absolute; top: 22px; left: calc(100% - 8px);
  width: 300px; height: 300px; display: none;
  background-color: #fff; background-repeat: no-repeat;
  border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow-lg); z-index: 10; pointer-events: none;
}
@media (max-width: 1024px) {
  .zoom-lens, .zoom-result { display: none !important; }
  .zoom-wrap { cursor: default; }
}

/* ---------- 详情页多图画廊 ---------- */
.gallery-main { position: relative; background: #fff; border-radius: 16px; padding: 10px; }
.gallery-main img { border-radius: 12px; width: 100%; aspect-ratio: 1 / 1; object-fit: contain; display: block; }
.gallery-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(14, 42, 71, 0.55); color: #fff; border: 1px solid rgba(255,255,255,0.35);
  transition: background 0.2s, border-color 0.2s;
}
.gallery-arrow:hover { background: var(--orange); border-color: var(--orange); }
.gallery-arrow.prev { left: 34px; }
.gallery-arrow.next { right: 34px; }
.gallery-thumbs { display: flex; flex-wrap: nowrap; gap: 8px; margin-top: 10px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: thin; }
.gallery-thumb {
  flex: 0 0 76px; width: 76px; max-width: 76px; border-radius: 10px; overflow: hidden;
  border: 2px solid transparent; padding: 0; background: none; cursor: pointer;
  opacity: 0.72; transition: border-color 0.2s, opacity 0.2s;
}
.gallery-thumb img { width: 100%; aspect-ratio: 1 / 1; object-fit: contain; display: block; background: #fff; }
.gallery-thumb:hover { opacity: 1; }
.gallery-thumb.active { border-color: var(--orange); opacity: 1; }


/* ---------- 资质证书 / 员工风采 ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.cert-grid figure {
  background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s;
}
.cert-grid figure:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.cert-grid img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; display: block; }
.cert-grid figcaption { padding: 10px 12px; font-size: 13px; color: #33475F; text-align: center; }
.staff-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px; }
.staff-grid > div { background: #fff; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.staff-grid img { width: 100%; height: 100%; object-fit: cover; display: block; }
.staff-grid p { padding: 12px 16px; font-size: 13.5px; color: var(--gray); }
@media (max-width: 1024px) { .cert-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .cert-grid { grid-template-columns: repeat(2, 1fr); } .staff-grid { grid-template-columns: 1fr; } }

/* ---------- 专利证书 ---------- */
.patent-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.patent-grid figure {
  background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s;
}
.patent-grid figure:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.patent-grid img { width: 100%; aspect-ratio: 3 / 4; object-fit: contain; display: block; background: #fff; padding: 10px; box-sizing: border-box; }
.patent-grid figcaption { padding: 10px 12px; font-size: 13px; color: #33475F; text-align: center; }
.patent-grid figcaption strong { display: block; color: var(--navy); font-size: 13.5px; margin-bottom: 2px; }
@media (max-width: 1024px) { .patent-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .patent-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- 质量认证证书 ---------- */
.qms-cert { display: flex; justify-content: center; }
.qms-cert figure {
  background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
  max-width: 460px; width: 100%;
  transition: transform 0.25s, box-shadow 0.25s;
}
.qms-cert figure:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.qms-cert img { width: 100%; display: block; }
.qms-cert figcaption { padding: 10px 12px; font-size: 13px; color: #33475F; text-align: center; }
.qms-cert figcaption strong { display: block; color: var(--navy); font-size: 13.5px; margin-bottom: 2px; }

/* ---------- 商品详情页 ---------- */
.p-body h3 a { color: var(--navy); }
.p-body h3 a:hover { color: var(--orange); }
.detail-grid { display: grid; grid-template-columns: 0.88fr 1.12fr; gap: 40px; align-items: start; }
.detail-grid > * { min-width: 0; }
.detail-grid.no-media { grid-template-columns: 1fr; max-width: 860px; }
.detail-grid.no-media .detail-body { padding: 8px 0; }
.detail-media { background: var(--bg); border-radius: 20px; padding: 22px; position: relative; }
.detail-media img { border-radius: 14px; width: 100%; min-width: 0; }
.detail-body .p-model { font-size: 14px; color: var(--gray); }
.detail-body h2 { font-size: 24px; color: var(--navy); margin: 4px 0 8px; }
.detail-brief { color: var(--gray); font-size: 14.5px; margin-bottom: 14px; }
.spec-table { width: 100%; border-collapse: collapse; background: #fff; }
.spec-table th, .spec-table td { border: 1px solid var(--line); padding: 11px 16px; font-size: 14.5px; text-align: left; vertical-align: top; }
.spec-table th { background: var(--bg-2); color: var(--navy); width: 30%; font-weight: 700; }
.spec-table td { color: #33475F; }
/* ---------- 产品中心：商城类目式布局 ---------- */
.cat-layout { display: grid; grid-template-columns: 280px 1fr; gap: 30px; align-items: start; }
.cat-side { position: sticky; top: 132px; max-height: calc(100vh - 156px); overflow-y: auto; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 10px; box-shadow: 0 2px 12px rgba(14,42,71,0.05); }
.cat-side-head { font-weight: 800; color: var(--navy); font-size: 15px; padding: 8px 12px 10px; border-bottom: 1px solid var(--line); margin-bottom: 6px; }
.cat-nav { display: flex; align-items: center; gap: 10px; width: 100%; border: none; background: none; border-radius: 10px; padding: 8px 12px; cursor: pointer; font-size: 14px; color: #33475F; text-align: left; font-family: inherit; }
.cat-nav span { flex: 1; }
.cat-nav b { background: var(--bg); color: #64748B; font-size: 11.5px; border-radius: 999px; padding: 1px 9px; font-weight: 700; }
.cat-nav:hover { background: #F6F9FC; }
.cat-nav.on { background: var(--navy); color: #fff; }
.cat-nav.on b { background: rgba(255,255,255,0.22); color: #fff; }
.cat-main { min-width: 0; }
/* 分类分组：深色标题条 + 浅色子项列表（仿安培选型页） */
.cat-group { margin-bottom: 6px; }
.cat-nav { display: flex; align-items: center; justify-content: center; position: relative; width: 100%; background: var(--navy); color: #fff; border: none; border-radius: 8px; padding: 10px 14px; font-size: 14px; font-weight: 700; cursor: pointer; text-align: center; font-family: inherit; }
.cat-nav > span { text-align: center; white-space: nowrap; }
.cat-nav b { position: absolute; right: 12px; background: rgba(255,255,255,0.2); color: #fff; font-size: 11.5px; border-radius: 999px; padding: 1px 9px; font-weight: 700; }
.cat-nav:hover { background: #123B63; }
.cat-nav.on { background: var(--orange); }
.cat-nav.on b { background: rgba(0,0,0,0.18); }
.cat-nav.all { background: #E8EEF6; color: var(--navy); }
.cat-nav.all b { background: #fff; color: var(--navy); }
.cat-nav.all:hover { background: #D8E2F0; }
.cat-nav.all.on { background: var(--orange); color: #fff; }
.cat-nav.all.on b { background: rgba(0,0,0,0.18); color: #fff; }
.cat-sub { display: none; padding: 5px 0 8px; }
.cat-group.open .cat-sub { display: block; }

.cat-sub-nav { display: flex; align-items: center; gap: 8px; width: 100%; border: none; background: none; border-radius: 8px; padding: 6px 14px 6px 16px; font-size: 13px; color: #64748B; cursor: pointer; text-align: left; font-family: inherit; }
.cat-sub-nav span { flex: 1; min-width: 0; white-space: nowrap; }
.cat-sub-nav b { color: #94A3B8; font-size: 11px; border-radius: 999px; }
.cat-sub-nav:hover { color: var(--navy); }
.cat-sub-nav.on { color: var(--orange); font-weight: 700; }
/* 产品中心内容始终可见（不依赖滚动渐入，避免整页空白） */
.cat-layout.reveal, .cat-layout .reveal { opacity: 1; transform: none; transition: none; }
/* 新闻列表同理：内容始终可见，不依赖滚动渐入 */
.news-list.reveal, .news-list .reveal { opacity: 1; transform: none; transition: none; }
@media (max-width: 860px) {
  .cat-layout { grid-template-columns: 1fr; gap: 18px; }
  .cat-side { position: static; border: none; background: none; padding: 0; box-shadow: none; }
  .cat-side-head { display: none; }
  .cat-nav-list { display: flex; flex-wrap: wrap; gap: 6px; }
  .cat-nav { width: auto; border: 1px solid var(--line); background: #fff; padding: 7px 12px; font-size: 13px; color: #33475F; }
  .cat-nav:hover { background: #F6F9FC; }
  .cat-nav.on { background: var(--navy); color: #fff; border-color: var(--navy); }
  .cat-nav.on b { background: rgba(255,255,255,0.22); color: #fff; }
  .cat-nav.all.on { background: var(--orange); border-color: var(--orange); }
  .cat-nav.all.on b { background: rgba(0,0,0,0.18); color: #fff; }
}

/* 参数速览（右侧键值行，参考优倍电气详情页风格） */
.kv-spec { margin: 6px 0 0; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: #fff; }
.kv-row { display: flex; border-bottom: 1px solid var(--line); }
.kv-row:last-child { border-bottom: none; }
.kv-k { flex: 0 0 108px; background: #F2F6FB; color: var(--navy); font-weight: 700; font-size: 13px; padding: 9px 14px; border-right: 1px solid var(--line); }
.kv-v { flex: 1; padding: 9px 14px; font-size: 13.5px; color: #33475F; }
.kv-more { display: inline-block; margin: 10px 2px 0; color: var(--orange); font-weight: 700; font-size: 13px; text-decoration: none; }
.kv-more:hover { text-decoration: underline; }
.spec-wrap { overflow-x: auto; }
.spec-wrap .spec-table { min-width: 640px; }
.spec-wrap .spec-table th { width: 30%; }
#specs { scroll-margin-top: 84px; }
/* 详情页页签：产品介绍 / 技术参数 / 配件 / 下载 */
.detail-tabs { display: flex; gap: 4px; flex-wrap: wrap; border-bottom: 2px solid var(--line); margin: 2px 0 26px; scroll-margin-top: 132px; }
.dt-tab { border: none; background: none; padding: 13px 24px; font-size: 16px; font-weight: 700; color: var(--gray); cursor: pointer; border-bottom: 3px solid transparent; margin-bottom: -2px; transition: color .2s; }
.dt-tab:hover { color: var(--navy); }
.dt-tab.active { color: var(--navy); border-bottom-color: var(--orange); }
.dt-panel { display: none; }
.dt-panel.active { display: block; }
.dt-panel.active .reveal { opacity: 1; transform: none; transition: none; }
.dt-panel > p { color: var(--gray); font-size: 15px; line-height: 1.95; margin-bottom: 14px; }
.intro-list { margin: 4px 0 16px; padding-left: 22px; }
.intro-list li { margin: 8px 0; font-size: 15px; color: #33475F; line-height: 1.8; }
.intro-list li::marker { color: var(--orange); }
.acc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
/* 产品介绍页签里的视频区 */
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; margin-top: 18px; }
.video-card { border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: #fff; box-shadow: 0 2px 10px rgba(14,42,71,0.05); }
.video-card video { width: 100%; aspect-ratio: 16 / 9; display: block; background: #0B1F38; }
.video-card strong { display: block; padding: 11px 14px; font-size: 14px; color: var(--navy); }
.acc-card { border: 1px solid var(--line); border-radius: 12px; padding: 15px 18px; background: #fff; box-shadow: 0 2px 10px rgba(14,42,71,0.04); }
.acc-card strong { display: block; color: var(--navy); font-size: 15px; margin-bottom: 5px; }
.acc-card span { color: var(--gray); font-size: 13.5px; line-height: 1.7; }
/* 可点击的配套产品卡 */
a.acc-card { display: block; text-decoration: none; transition: transform .18s, box-shadow .18s, border-color .18s; }
a.acc-card:hover { transform: translateY(-4px); border-color: var(--orange); box-shadow: 0 10px 26px rgba(249,115,22,0.16); }
a.acc-card img { width: 100%; height: 96px; object-fit: contain; background: var(--bg); border-radius: 8px; margin-bottom: 10px; }
a.acc-card em { display: block; margin-top: 8px; font-style: normal; color: var(--orange); font-size: 13px; font-weight: 700; }
/* 图文详情：淘宝式全宽长图（破出容器，铺满屏幕宽度） */
html { overflow-x: hidden; overflow-x: clip; }
body { overflow-x: clip; }
.detail-empty { text-align: center; color: var(--gray); padding: 24px 0; }
#t-detail {
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  background: #fff;
  padding-bottom: 26px;
}
.detail-figure { margin: 0; }
.detail-figure img { width: 100%; display: block; border-radius: 0; }
.detail-text { color: #33475F; font-size: 15.5px; line-height: 1.9; max-width: 880px; margin: 0 auto 18px; padding: 22px 4% 4px; }
@media (max-width: 720px) {
  .dt-tab { padding: 11px 14px; font-size: 14.5px; }
}
.detail-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 16px; }
.detail-actions .btn { padding: 11px 26px; font-size: 15px; }
.download-list { max-width: 880px; margin: 0 auto; }
.download-row {
  display: flex; align-items: center; gap: 16px; background: #fff;
  border: 1px solid var(--line); border-radius: 14px; padding: 15px 20px; margin-bottom: 12px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.download-row:hover { transform: translateX(5px); box-shadow: var(--shadow); }
.dl-lang {
  flex: none; min-width: 68px; width: auto; padding: 0 14px; height: 46px; border-radius: 10px; display: grid; place-items: center;
  background: var(--navy); color: #fff; font-weight: 700; font-size: 13.5px; letter-spacing: .5px; white-space: nowrap;
}
.dl-info { flex: 1; min-width: 0; }
.dl-info strong { display: block; color: var(--navy); font-size: 15.5px; }
.dl-info span { font-size: 12.5px; color: var(--gray); }
.download-row .btn { flex: none; }
@media (max-width: 860px) {
  .detail-grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 560px) {
  .topbar-note { display: none; }
  .topbar-inner { justify-content: flex-end; }
  .hero-copy h1 { font-size: 30px; }
  .hero-points li { font-size: 12.5px; padding: 5px 12px; }
  .product-grid { grid-template-columns: 1fr; }
  .section-alt .product-grid { grid-template-columns: 1fr; }
  .app-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .btn { padding: 12px 24px; font-size: 15px; }
  .cta-band h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; padding: 48px 0 36px; }
}
/* ===== 选型配置器 ===== */
.configurator { border:1px solid rgba(0,0,0,0.08); border-radius:14px; padding:20px 22px; background:#fff; margin-bottom:30px; }
.cfg-head { display:flex; align-items:baseline; gap:10px; flex-wrap:wrap; margin-bottom:10px; }
.cfg-head h3 { font-size:17px; margin:0; color:#1A1B1C; }
.cfg-hint { font-size:12.5px; color:#6B7280; }
.cfg-groups { display:flex; flex-direction:column; gap:9px; }
.cfg-group { display:flex; align-items:flex-start; gap:12px; flex-wrap:wrap; }
.cfg-label { font-size:12.5px; font-weight:600; color:#374151; min-width:58px; padding-top:6px; }
.cfg-opts { display:flex; gap:8px; flex-wrap:wrap; }
.cfg-opt { border:1px solid #E4E3DD; background:#fff; border-radius:8px; padding:5px 12px; font-size:12.5px; color:#374151; cursor:pointer; transition:all .15s ease; }
.cfg-opt:hover { border-color:#F97316; color:#1A1B1C; }
.cfg-opt.active { background:#FFF3EA; border-color:#F97316; color:#C2410C; font-weight:600; }
.cfg-result { margin-top:12px; padding:12px 14px; border-radius:10px; background:#F8F9FA; display:flex; align-items:center; gap:16px; flex-wrap:wrap; }
.cfg-model { font-size:14px; color:#374151; }
.cfg-model strong { font-size:19px; color:#1A1B1C; margin-left:6px; font-weight:700; }
.cfg-summary { flex:1; min-width:220px; font-size:13px; color:#4A5568; line-height:1.7; }
.cfg-actions { display:flex; gap:8px; flex-wrap:wrap; }
@media (max-width: 768px) {
  .configurator { padding:16px; }
  .cfg-group { gap:8px; }
  .cfg-label { min-width:0; width:100%; padding-top:0; }
}
/* ===== 产品卡片分类徽章 ===== */
.p-badge { display:inline-block; position:absolute; top:10px; right:10px; z-index:2; font-size:11px; font-weight:600; padding:3px 9px; border-radius:6px; color:#fff; }
.badge-green { background:#2F855A; }
.badge-blue { background:#2B6CB0; }
/* ===== 配置器定制输入框 ===== */
.cfg-input { border:1px solid #E4E3DD; border-radius:8px; padding:6px 10px; font-size:13px; color:#374151; background:#fff; }
.cfg-input:focus { outline:none; border-color:#2C7A7B; }