/* ====== Trelleborg Style - Enterprise Global Theme ====== */
:root {
  --orange: #f56e14;
  --orange-dark: #d95d0b;
  --blue: #126bfb;
  --blue-dark: #0b52c2;
  --text: #222;
  --text-light: #666;
  --bg: #fff;
  --bg-warm: #fafafa;
  --border: #e5e5e5;
  --footer-bg: #1a1a1a;
  --footer-bottom: #111;
  --max-w: 1280px;
  --radius: 2px;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  font-size: 15px; color: var(--text); line-height: 1.7; background: var(--bg);
  padding-top: 116px;
}
a { color: var(--orange); text-decoration: none; transition: color .2s; }
a:hover { color: var(--orange-dark); }
img { max-width: 100%; height: auto; vertical-align: middle; }
ul { list-style: none; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ===== Header ===== */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
}
.top-bar {
  background: #2a2a2a; color: #bbb; font-size: 12px; padding: 6px 0;
}
.top-bar .top-brand { font-weight: 600; color: #fff; letter-spacing: 1px; }
.top-bar .top-links a { color: #bbb; margin-left: 16px; font-size: 12px; }
.top-bar .top-links a:hover { color: #fff; }

.main-nav { background: #fff; border-bottom: 1px solid var(--border); }
.main-nav .container { height: 72px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo img { height: 44px; width: auto; }
.logo-text { font-size: 18px; font-weight: 700; color: var(--text); letter-spacing: .5px; }
.nav { display: flex; gap: 36px; }
.nav a {
  font-size: 15px; color: var(--text); font-weight: 500; position: relative; padding: 4px 0;
}
.nav a::after {
  content: ''; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px;
  background: var(--orange); transition: width .25s;
}
.nav a:hover::after, .nav a.active::after { width: 100%; }
.nav a.active { color: var(--orange); }

/* ===== Hero (Left Text + Right Image) ===== */
.hero {
  background: #f5f7fa; min-height: 520px; display: flex; align-items: center; padding: 60px 0;
}
.hero .container { display: flex; align-items: center; gap: 48px; }
.hero-left { flex: 1; }
.hero-left h1 {
  font-size: 38px; font-weight: 700; line-height: 1.25; color: var(--text); margin-bottom: 20px;
}
.hero-left h1 em {
  font-style: normal; color: var(--orange);
}
.hero-left p {
  font-size: 16px; color: var(--text-light); line-height: 1.8; margin-bottom: 32px; max-width: 520px;
}
.hero-left .btn {
  display: inline-block; padding: 12px 32px; background: var(--orange); color: #fff;
  font-size: 15px; font-weight: 600; border-radius: var(--radius); transition: background .2s;
}
.hero-left .btn:hover { background: var(--orange-dark); color: #fff; }
.hero-right { flex: 1; display: flex; justify-content: center; }
.hero-right img {
  width: 100%; max-width: 560px; border-radius: var(--radius); box-shadow: var(--shadow); object-fit: cover;
}

/* ===== News Cards ===== */
.news-band { padding: 60px 0; background: var(--bg); }
.news-band .section-title { text-align: center; margin-bottom: 36px; }
.news-band .section-title h2 { font-size: 28px; font-weight: 700; color: var(--text); }
.news-band .section-title span { color: var(--text-light); font-size: 14px; text-transform: uppercase; letter-spacing: 2px; }
.card-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: transform .25s, box-shadow .25s;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card img { width: 100%; height: 200px; object-fit: cover; }
.card-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; color: var(--text); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 2.8em; }
.card-body p { font-size: 14px; color: var(--text-light); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 2.6em; }
.card-body .card-link { display: inline-block; margin-top: 12px; font-size: 14px; font-weight: 600; color: var(--orange); }
.card-body .card-link:hover { color: var(--orange-dark); }

/* ===== Promise (Big Image Text) ===== */
.promise {
  position: relative; min-height: 420px; display: flex; align-items: center;
  background: #1a1a1a; color: #fff; overflow: hidden;
}
.promise-bg {
  position: absolute; inset: 0; opacity: .35;
}
.promise-bg img { width: 100%; height: 100%; object-fit: cover; }
.promise-content {
  position: relative; z-index: 2; max-width: var(--max-w); margin: 0 auto; padding: 60px 24px;
}
.promise-content h2 { font-size: 30px; font-weight: 700; margin-bottom: 16px; }
.promise-content h2 em { font-style: normal; color: var(--orange); }
.promise-content p { font-size: 15px; color: #ccc; max-width: 720px; line-height: 1.8; }

/* ===== Industries Grid ===== */
.industries { padding: 60px 0; background: var(--bg-warm); }
.industries .section-title { text-align: center; margin-bottom: 36px; }
.industries .section-title h2 { font-size: 28px; font-weight: 700; }
.industries .section-title span { color: var(--text-light); font-size: 14px; text-transform: uppercase; letter-spacing: 2px; }
.grid-4 {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.ind-item { background: #fff; border-radius: var(--radius); overflow: hidden; transition: transform .25s; }
.ind-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.ind-item img { width: 100%; height: 160px; object-fit: cover; }
.ind-item .ind-body { padding: 16px; }
.ind-item h4 { font-size: 15px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.ind-item p { font-size: 13px; color: var(--text-light); line-height: 1.6; }

/* ===== Value System (五好五快) ===== */
.value-system-v { padding: 60px 0; background: #f8f9fb; }
.value-system-v .section-title { text-align: center; margin-bottom: 36px; }
.value-system-v .section-title h2 { font-size: 28px; font-weight: 700; color: var(--text); }
.value-system-v .section-title span { color: var(--text-light); font-size: 14px; text-transform: uppercase; letter-spacing: 2px; }

/* 五好五快左右分栏（两列各占一半） */
.value-whole-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.value-half { border-right: 1px solid #e5e5e5; padding: 0 24px; }
.value-half:last-child { border-right: none; padding-left: 24px; }
.value-half-title { text-align: center; font-size: 18px; font-weight: 700; padding: 14px 0; margin: 0; }
.value-half-good { color: var(--orange); border-bottom: 3px solid var(--orange); }
.value-half-fast { color: var(--blue); border-bottom: 3px solid var(--blue); }

/* 竖版卡片：单列排列 */
.value-col-wrap { display: flex; flex-direction: column; gap: 0; }
.v-card { display: flex; align-items: flex-start; gap: 16px; padding: 22px 0; border-bottom: 1px dashed #e5e5e5; }
.v-card:last-child { border-bottom: none; }
.v-card .v-num {
  flex: 0 0 48px; height: 48px; line-height: 48px; text-align: center;
  border-radius: 4px; font-size: 22px; font-weight: 800; font-family: 'Segoe UI', Arial, sans-serif;
  background: var(--orange); color: #fff; margin-right: 4px;
}
.v-card.fast .v-num { background: var(--blue); }
.v-card .v-body { flex: 1; min-width: 0; display: flex; flex-direction: column; align-items: flex-start; }
.v-card .v-title { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 4px; line-height: 1.4; flex: 1; }
.v-card .v-tag {
  font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 20px;
  background: #fff3e8; color: var(--orange); display: inline-block; margin-bottom: 6px; white-space: nowrap;
}
.v-card.fast .v-tag { background: #e8f1ff; color: var(--blue); }
.v-card .v-desc { font-size: 13px; color: var(--text-light); line-height: 1.7; margin: 0; }

/* 移动端适配 */
@media (max-width: 860px) {
  .value-whole-grid { grid-template-columns: 1fr; }
  .value-half { border-right: none; border-bottom: 1px solid #e5e5e5; padding: 0 0 16px; margin-bottom: 16px; }
  .value-half:last-child { border-bottom: none; padding-left: 0; }
  .v-card { gap: 12px; }
  .v-card .v-num { flex: 0 0 40px; height: 40px; line-height: 40px; font-size: 18px; }
}

/* ===== Business CTA ===== */
.business-cta {
  padding: 60px 0; background: #fff;
}
.business-cta .container { display: flex; gap: 48px; align-items: center; }
.business-cta .cta-img { flex: 1; }
.business-cta .cta-img img { width: 100%; max-width: 480px; border-radius: var(--radius); box-shadow: var(--shadow); }
.business-cta .cta-text { flex: 1; }
.business-cta .cta-text h2 { font-size: 26px; font-weight: 700; margin-bottom: 12px; }
.business-cta .cta-text h2 em { font-style: normal; color: var(--orange); }
.business-cta .cta-text p { color: var(--text-light); margin-bottom: 20px; }
.business-cta .cta-text .btn { display: inline-block; padding: 10px 28px; background: var(--orange); color: #fff; font-weight: 600; border-radius: var(--radius); }
.business-cta .cta-text .btn:hover { background: var(--orange-dark); }

/* ===== Footer ===== */
.site-footer { background: var(--footer-bg); color: #bbb; font-size: 14px; }
.footer-top { padding: 56px 0 40px; border-bottom: 1px solid #333; }
.footer-top .container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul a { color: #aaa; font-size: 14px; }
.footer-col ul a:hover { color: var(--orange); }
.footer-bottom { padding: 16px 0; font-size: 13px; color: #777; }
.footer-bottom a { color: #999; }
.footer-bottom a:hover { color: var(--orange); }

/* ===== Product List Page ===== */
.page-banner {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%); color: #fff;
  padding: 56px 0; text-align: center;
}
.page-banner h1 { font-size: 32px; font-weight: 700; margin-bottom: 8px; }
.page-banner p { font-size: 15px; color: #b0b8c4; }

.breadcrumb { font-size: 13px; color: #888; margin: 28px 0 28px; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.breadcrumb a { color: var(--orange); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .bc-current { color: #555; font-weight: 600; }
.breadcrumb .bc-sep { color: #aaa; user-select: none; }

.filter { margin-bottom: 24px; display: flex; flex-wrap: wrap; gap: 10px; }
.chip-filter {
  display: inline-block; padding: 6px 16px; border: 1px solid var(--border);
  border-radius: 20px; font-size: 13px; color: var(--text-light); background: #fff; transition: all .2s;
}
.chip-filter:hover, .chip-filter.active { background: var(--orange); color: #fff; border-color: var(--orange); }

.product-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.product-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: transform .25s, box-shadow .25s;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.product-card img { width: 100%; height: 200px; object-fit: cover; background: #f5f5f5; }
.product-card .pc-body { padding: 16px; }
.product-card .pc-body h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.product-card .pc-body .pc-cat { font-size: 12px; color: var(--orange); font-weight: 600; text-transform: uppercase; margin-bottom: 4px; }
.product-card .pc-body p { font-size: 13px; color: var(--text-light); line-height: 1.5; }
.product-card .pc-body .pc-link { display: inline-block; margin-top: 10px; font-size: 13px; font-weight: 600; color: var(--orange); }

/* ===== Product Detail ===== */
.detail-wrap { display: flex; gap: 40px; padding: 40px 0; }
.detail-media { flex: 1; }
.detail-media img { width: 100%; max-width: 420px; border-radius: var(--radius); box-shadow: var(--shadow); }
.detail-info { flex: 1.2; }
.detail-info h1 { font-size: 26px; font-weight: 700; margin-bottom: 8px; }
.detail-info .detail-meta { font-size: 13px; color: var(--orange); font-weight: 600; margin-bottom: 16px; }
.detail-info p { color: var(--text-light); line-height: 1.8; margin-bottom: 16px; }
.detail-info .specs { margin: 20px 0; }
.detail-info .specs dt { font-weight: 600; color: var(--text); margin-bottom: 4px; }
.detail-info .specs dd { color: var(--text-light); margin-bottom: 12px; }
.detail-info .btn-primary {
  display: inline-block; padding: 12px 28px; background: var(--orange); color: #fff;
  font-weight: 600; border-radius: var(--radius); transition: background .2s;
}
.detail-info .btn-primary:hover { background: var(--orange-dark); }

/* ===== News List / Detail ===== */
.news-list { padding: 40px 0; }
.news-row { display: flex; gap: 20px; align-items: flex-start; padding: 20px 0; border-bottom: 1px solid var(--border); }
.news-row .news-thumb { width: 160px; height: 100px; border-radius: var(--radius); object-fit: cover; flex-shrink: 0; background: #f0f0f0; }
.news-row .news-body h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.news-row .news-body p { font-size: 14px; color: var(--text-light); line-height: 1.6; }
.news-row .news-meta { font-size: 12px; color: #999; margin-top: 6px; }

.news-detail { padding: 40px 0; max-width: 840px; margin: 0 auto; }
.news-detail h1 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.news-detail .nd-meta { font-size: 13px; color: #999; margin-bottom: 24px; }
.news-detail .nd-body { font-size: 15px; line-height: 1.9; color: #333; }
.news-detail .nd-body p { margin-bottom: 16px; }

/* ===== About / Contact ===== */
.about-hero { padding: 60px 0; }
.about-hero .container { display: flex; gap: 48px; align-items: center; }
.about-hero .about-text { flex: 1; }
.about-hero .about-text h2 { font-size: 28px; font-weight: 700; margin-bottom: 16px; }
.about-hero .about-text h2 em { font-style: normal; color: var(--orange); }
.about-hero .about-text p { color: var(--text-light); line-height: 1.8; margin-bottom: 16px; }
.about-hero .about-img { flex: 1; }
.about-hero .about-img img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); }

.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 48px 0; }
.feature-item { text-align: center; }
.feature-item .f-icon { width: 56px; height: 56px; margin: 0 auto 12px; border-radius: 50%; background: var(--orange); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 22px; }
.feature-item h4 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.feature-item p { font-size: 13px; color: var(--text-light); }

.contact-wrap { display: flex; gap: 40px; padding: 48px 0; }
.contact-info { flex: 1; }
.contact-info h2 { font-size: 24px; font-weight: 700; margin-bottom: 16px; }
.contact-info .ci-item { display: flex; gap: 12px; margin-bottom: 16px; align-items: flex-start; }
.contact-info .ci-item .ci-icon { width: 40px; height: 40px; border-radius: 50%; background: var(--orange); color: #fff; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 16px; }
.contact-info .ci-item h4 { font-size: 15px; font-weight: 600; }
.contact-info .ci-item p { font-size: 14px; color: var(--text-light); }

.contact-form { flex: 1.2; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; }
.contact-form .form-row { margin-bottom: 16px; }
.contact-form label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.contact-form input, .contact-form textarea {
  width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 14px; transition: border-color .2s;
}
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--orange); }
.contact-form textarea { min-height: 120px; }
.contact-form button {
  padding: 12px 32px; background: var(--orange); color: #fff; border: none; border-radius: var(--radius);
  font-size: 15px; font-weight: 600; cursor: pointer; transition: background .2s;
}
.contact-form button:hover { background: var(--orange-dark); }

/* ===== Pagination ===== */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 32px; }
.pagination a {
  display: inline-block; padding: 6px 14px; border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 14px; color: var(--text);
}
.pagination a:hover, .pagination a.active { background: var(--orange); color: #fff; border-color: var(--orange); }

/* ===== Home Product Entry (6+1 Categories) ===== */
.home-cats { padding: 60px 0; background: #fff; }
.home-cats .section-title { text-align: center; margin-bottom: 36px; }
.home-cats .section-title h2 { font-size: 28px; font-weight: 700; color: var(--text); }
.home-cats .section-title span { color: var(--text-light); font-size: 14px; text-transform: uppercase; letter-spacing: 2px; }

.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cat-card {
  display: block; background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: transform .25s, box-shadow .25s;
}
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); text-decoration: none; }
.cat-card .cat-img { height: 140px; overflow: hidden; background: #f5f7fa; }
.cat-card .cat-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.cat-card:hover .cat-img img { transform: scale(1.05); }
.cat-card .cat-body { padding: 14px 16px; }
.cat-card .cat-body h4 { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.cat-card .cat-body h4::before { content: ''; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--orange); margin-right: 8px; vertical-align: 2px; }
.cat-card .cat-body p { font-size: 13px; color: var(--text-light); line-height: 1.6; margin-bottom: 8px; }
.cat-card .cat-count { font-size: 12px; font-weight: 600; color: var(--orange); }
.cat-card.cat-special { background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%); border-color: transparent; }
.cat-card.cat-special .cat-body h4 { color: #fff; }
.cat-card.cat-special .cat-body h4::before { background: #fff; }
.cat-card.cat-special .cat-body p { color: #b0b8c4; }
.cat-card.cat-special .cat-count { color: #fff; background: var(--orange); padding: 2px 10px; border-radius: 20px; display: inline-block; }

/* ===== Home FAQ (Categorized) ===== */
.home-faq { padding: 60px 0; background: var(--bg); }
.home-faq .section-title { text-align: center; margin-bottom: 36px; }
.home-faq .section-title h2 { font-size: 28px; font-weight: 700; color: var(--text); }
.home-faq .section-title span { color: var(--text-light); font-size: 14px; text-transform: uppercase; letter-spacing: 2px; }

.faq-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.faq-col {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; display: flex; flex-direction: column;
}
.faq-col h3 { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 2px solid var(--orange); display: flex; align-items: center; }
.faq-col h3::before {
  content: ''; width: 18px; height: 18px; background: var(--orange); border-radius: 4px;
  margin-right: 8px; flex-shrink: 0;
}
.faq-item { border-bottom: 1px dashed var(--border); padding: 10px 0; }
.faq-item:last-child { border-bottom: none; }
.faq-item summary {
  font-size: 14px; font-weight: 600; color: var(--text); cursor: pointer; list-style: none;
  display: flex; align-items: center; line-height: 1.5; transition: color .2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: 'Q'; flex-shrink: 0; width: 20px; height: 20px; border-radius: 50%;
  background: var(--orange); color: #fff; font-size: 12px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center; margin-right: 8px;
}
.faq-item summary:hover { color: var(--orange); }
.faq-item[open] summary::before { background: var(--orange-dark); }
.faq-item p {
  font-size: 13px; color: var(--text-light); line-height: 1.7; margin-top: 10px; margin-left: 28px;
}
.faq-item[open] summary::after { content: '收起'; font-size: 12px; color: var(--orange); margin-left: auto; font-weight: 400; }
.faq-item summary::after { content: '展开'; font-size: 12px; color: #999; margin-left: auto; font-weight: 400; }

.faq-more { text-align: center; margin-top: 32px; }
.faq-more .btn {
  display: inline-block; padding: 10px 28px; background: var(--orange); color: #fff;
  font-weight: 600; border-radius: var(--radius); transition: background .2s;
}
.faq-more .btn:hover { background: var(--orange-dark); }

/* ===== Home Industries Grid (12 cards) ===== */
.home-industries { padding: 60px 0; background: var(--bg-warm); }
.home-industries .section-title { text-align: center; margin-bottom: 16px; }
.home-industries .section-title h2 { font-size: 28px; font-weight: 700; color: var(--text); }
.home-industries .section-title span { color: var(--text-light); font-size: 14px; text-transform: uppercase; letter-spacing: 2px; }
.home-industries .section-lead { text-align: center; color: var(--text-light); font-size: 15px; line-height: 1.8; max-width: 900px; margin: 0 auto 36px; }

.industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.industry-card {
  display: block; background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: transform .25s, box-shadow .25s;
}
.industry-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); text-decoration: none; }
.industry-card .industry-img { height: 160px; overflow: hidden; background: #f5f7fa; }
.industry-card .industry-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.industry-card:hover .industry-img img { transform: scale(1.05); }
.industry-card .industry-body { padding: 16px; }
.industry-card .industry-body h4 { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.industry-card .industry-body p { font-size: 13px; color: var(--text-light); line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.industry-card .industry-link { font-size: 13px; font-weight: 600; color: var(--orange); }
.industry-card .industry-link:hover { color: var(--orange-dark); }

/* ===== Solution Cards (list page) ===== */
.solution-card .card-media { display: block; height: 180px; overflow: hidden; background: #f5f7fa; }
.solution-card .card-media img { width: 100%; height: 100%; object-fit: cover; }

/* ===== Why Choose (numbered items) ===== */
.ind-num {
  display: inline-flex; width: 24px; height: 24px; border-radius: 50%; background: var(--orange);
  color: #fff; font-size: 13px; font-weight: 700; align-items: center; justify-content: center; margin-right: 8px;
}

/* ===== Responsive ===== */
@media (max-width: 1180px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .faq-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 980px) {
  .hero .container { flex-direction: column; text-align: center; }
  .hero-left p { margin: 0 auto 24px; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top .container { grid-template-columns: repeat(2, 1fr); }
  .nav { gap: 20px; }
}
@media (max-width: 640px) {
  .card-grid, .grid-4, .cat-grid, .faq-grid { grid-template-columns: 1fr; }
  .industry-grid, .product-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-left h1 { font-size: 26px; }
  .nav { display: none; }
  .detail-wrap, .contact-wrap, .business-cta .container, .about-hero .container { flex-direction: column; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== 全局按钮 ===== */
.btn {
  display: inline-block; padding: 10px 26px; background: var(--orange); color: #fff;
  font-weight: 600; font-size: 14px; border-radius: var(--radius); border: 1px solid var(--orange);
  cursor: pointer; transition: background .2s, color .2s, border-color .2s; text-align: center;
}
.btn:hover { background: var(--orange-dark); border-color: var(--orange-dark); color: #fff; }
.btn-primary { background: var(--orange); border-color: var(--orange); color: #fff; }
.btn-primary:hover { background: var(--orange-dark); border-color: var(--orange-dark); color: #fff; }
.btn-outline { background: #fff; border-color: var(--border); color: var(--text-light); }
.btn-outline:hover { border-color: var(--orange); color: var(--orange); background: #fff; }
.btn-light { background: #fff; border-color: #fff; color: var(--text); }
.btn-light:hover { background: var(--orange); border-color: var(--orange); color: #fff; }
.btn-block { display: block; width: 100%; margin-top: 6px; }
.btn-sm { padding: 6px 14px; font-size: 13px; }

/* ===== 搜索栏（首页 + 列表页） ===== */
.home-search { max-width: 980px; margin: 0 auto 36px; }
.home-search-form {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px 20px;
}
.hs-keys { display: flex; gap: 10px; margin-bottom: 12px; }
.hs-keys input[type="search"] {
  flex: 1; padding: 10px 16px; border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 14px; transition: border-color .2s;
}
.hs-keys input[type="search"]:focus { outline: none; border-color: var(--orange); }
.hs-filters { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.hs-filters .flt-label {
  display: block; font-size: 12px; color: var(--text-light); font-weight: 600; margin-bottom: 4px;
}
.hs-filters select {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 13px; background: #fff; color: var(--text);
}
.hs-filters select:focus { outline: none; border-color: var(--orange); }

/* ===== 产品中心列表页（左筛选 + 右内容） ===== */
.products-layout { padding: 40px 0 60px; background: var(--bg); min-height: 60vh; }
.products-body { display: flex; gap: 28px; align-items: flex-start; }

.product-filter {
  width: 260px; flex-shrink: 0; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; position: sticky; top: 96px;
}
.filter-title {
  font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 16px;
  padding-bottom: 10px; border-bottom: 2px solid var(--orange);
}
.flt-row { margin-bottom: 12px; }
.flt-row input[type="search"] {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 13px;
}
.flt-row input[type="search"]:focus { outline: none; border-color: var(--orange); }
.filter-form .flt-label { display: block; font-size: 12px; color: var(--text-light); font-weight: 600; margin: 10px 0 4px; }
.filter-form select {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 13px; background: #fff; color: var(--text);
}
.filter-form select:focus { outline: none; border-color: var(--orange); }
.filter-hot { margin-top: 22px; padding-top: 14px; border-top: 1px dashed var(--border); }
.filter-hot h4 { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.filter-hot li { margin-bottom: 8px; }
.filter-hot li a { font-size: 13px; color: var(--text-light); display: flex; align-items: center; gap: 6px; }
.filter-hot li a::before { content: '›'; color: var(--orange); font-weight: 700; }
.filter-hot li a:hover { color: var(--orange); }

.product-main { flex: 1; min-width: 0; }
.category-banner {
  display: flex; align-items: center; gap: 24px; background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  border-radius: var(--radius); padding: 28px 30px; color: #fff; margin-bottom: 24px; overflow: hidden;
}
.category-banner-text { flex: 1; }
.category-banner-text .chip {
  display: inline-block; background: rgba(255,255,255,.15); color: #fff; font-size: 12px;
  padding: 3px 10px; border-radius: 20px; margin-bottom: 10px;
}
.category-banner-text h2 { font-size: 26px; font-weight: 700; margin-bottom: 10px; }
.category-banner-text p { font-size: 14px; color: #b0b8c4; line-height: 1.7; margin-bottom: 16px; max-width: 560px; }
.category-banner-img { flex: 0 0 180px; }
.category-banner-img img { width: 180px; height: 120px; object-fit: cover; border-radius: var(--radius); }

.page-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.series-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.series-tab {
  display: inline-block; padding: 6px 14px; border: 1px solid var(--border); border-radius: 20px;
  font-size: 13px; color: var(--text-light); background: #fff; transition: all .2s;
}
.series-tab:hover, .series-tab.active { background: var(--orange); color: #fff; border-color: var(--orange); }
.result-count { font-size: 13px; color: var(--text-light); margin-bottom: 16px; }
.result-count strong { color: var(--orange); font-size: 16px; margin: 0 2px; }

.product-card { position: relative; display: flex; flex-direction: column; }
.hot-tag {
  position: absolute; top: 10px; right: 10px; z-index: 2; background: var(--orange); color: #fff;
  font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 2px; letter-spacing: 1px;
}
.card-media { display: block; background: #f5f7fa; }
.card-media img, .product-card img { width: 100%; height: 190px; object-fit: cover; }
.card-title { font-size: 16px; font-weight: 600; margin: 8px 0 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 2.8em; }
.card-text { font-size: 13px; color: var(--text-light); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 2.6em; }

/* ===== 响应式：搜索栏 / 筛选面板 ===== */
@media (max-width: 1180px) {
  .hs-filters { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .products-body { flex-direction: column; }
  .product-filter { width: 100%; position: static; }
  .hs-filters { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .hs-filters { grid-template-columns: 1fr; }
  .hs-keys { flex-direction: column; }
  .category-banner { flex-direction: column; text-align: center; }
  .category-banner-img { flex: none; }
}

/* ===== 产品详情页升级（参照参考图 image7 左窄右宽） ===== */
.product-detail { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; }
.detail-top { display: flex; gap: 32px; align-items: flex-start; border-bottom: 1px solid var(--border); padding-bottom: 28px; margin-bottom: 28px; }
.detail-media { flex: 0 0 380px; }
.detail-media img { width: 100%; max-width: none; height: 300px; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow); background: #f5f7fa; }
.detail-info { flex: 1; min-width: 0; }
.detail-info h1 { font-size: 26px; font-weight: 700; margin: 10px 0 12px; line-height: 1.35; }
.detail-info .lead { color: var(--text-light); line-height: 1.8; margin-bottom: 14px; font-size: 14px; }
.check-list { margin: 0 0 18px; }
.check-list li { position: relative; padding-left: 20px; font-size: 14px; color: var(--text); line-height: 1.9; }
.check-list li::before { content: '✓'; position: absolute; left: 0; top: 0; color: var(--orange); font-weight: 700; }
.detail-cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.btn-ghost { background: #fff; border: 1px solid var(--orange); color: var(--orange); }
.btn-ghost:hover { background: var(--orange); color: #fff; }
.btn-ghost, .btn-primary { display: inline-block; padding: 11px 26px; font-weight: 600; border-radius: var(--radius); transition: all .2s; }

.detail-block { margin-bottom: 28px; }
.detail-h { font-size: 20px; font-weight: 700; margin-bottom: 16px; padding-left: 12px; border-left: 4px solid var(--orange); line-height: 1.4; }
.detail-h small { font-size: 13px; color: var(--text-light); font-weight: 400; margin-left: 8px; }

/* 技术参数栅格 */
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.tech-item { background: var(--bg-warm); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.tech-item span { display: block; font-size: 12px; color: var(--text-light); margin-bottom: 6px; }
.tech-item b { display: block; font-size: 16px; font-weight: 700; color: var(--text); word-break: break-all; }

/* 应用领域标签 */
.app-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.app-tag { display: inline-block; padding: 6px 16px; border: 1px solid var(--orange); color: var(--orange); border-radius: 20px; font-size: 13px; background: #fff; }

/* 规格明细表 */
.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.spec-table th, .spec-table td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.spec-table th { background: var(--bg-warm); font-weight: 600; width: 180px; color: var(--text); }
.spec-table td { color: var(--text-light); }
.spec-table tr:nth-child(even) td { background: #fbfbfb; }

/* 卡片操作区（加入咨询单按钮） */
.card-actions { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: auto; flex-wrap: wrap; }
.btn-add-inq { border: 1px solid var(--orange); background: #fff; color: var(--orange); font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 20px; cursor: pointer; transition: all .2s; }
.btn-add-inq:hover { background: var(--orange); color: #fff; }

/* ===== 咨询单悬浮窗 ===== */
.inquiry-dock { position: fixed; right: 24px; bottom: 24px; z-index: 900; }
.inquiry-toggle {
  display: flex; align-items: center; gap: 8px; background: var(--orange); color: #fff;
  border: none; border-radius: 40px; padding: 12px 20px; font-size: 14px; font-weight: 600;
  cursor: pointer; box-shadow: 0 6px 24px rgba(245, 110, 20, 0.35); transition: background .2s;
}
.inquiry-toggle:hover { background: var(--orange-dark); }
.inquiry-toggle svg { width: 18px; height: 18px; fill: currentColor; }
.inquiry-count {
  display: inline-block; min-width: 22px; height: 22px; line-height: 22px; text-align: center;
  border-radius: 11px; background: #fff; color: var(--orange); font-size: 12px; padding: 0 6px;
}
/* ===== 咨询单弹窗（重设计版） ===== */
.inquiry-panel {
  position: absolute; right: 0; bottom: 58px; width: 360px; max-height: 620px;
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.22); display: flex; flex-direction: column; overflow: hidden;
}
.inquiry-panel[hidden] { display: none; }
.inquiry-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; background: var(--text); color: #fff; flex-shrink: 0;
}
.inquiry-head strong { font-size: 16px; font-weight: 600; }
.inquiry-close {
  background: rgba(255,255,255,0.15); border: none; color: #fff;
  font-size: 18px; width: 28px; height: 28px; border-radius: 50%;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.inquiry-close:hover { background: rgba(255,255,255,0.3); }
.inquiry-body { padding: 0; overflow-y: auto; display: flex; flex-direction: column; }

/* 产品列表 */
.inquiry-list-wrap { padding: 12px 18px; flex-shrink: 0; border-bottom: 1px solid var(--border); }
.inquiry-items { max-height: 200px; overflow-y: auto; }
.inquiry-items li {
  display: flex; align-items: center; gap: 10px; padding: 10px 0;
  border-bottom: 1px dashed var(--border); font-size: 13px;
}
.inquiry-items li:last-child { border-bottom: none; }
.inquiry-items .inq-name {
  flex: 1; min-width: 0; color: var(--text); font-weight: 500;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.inquiry-items .inq-qty { display: flex; align-items: center; gap: 4px; flex-shrink: 0; }
.inquiry-items .inq-qty button {
  width: 24px; height: 24px; border: 1px solid var(--border); background: #fff;
  border-radius: 4px; cursor: pointer; font-size: 14px; line-height: 1;
  color: var(--text); display: flex; align-items: center; justify-content: center;
  transition: border-color .2s, color .2s;
}
.inquiry-items .inq-qty button:hover { border-color: var(--orange); color: var(--orange); }
.inquiry-items .inq-qty b { min-width: 20px; text-align: center; font-size: 13px; font-weight: 600; }
.inq-del {
  border: none; background: none; color: #bbb; font-size: 18px; cursor: pointer;
  line-height: 1; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center;
  border-radius: 4px; transition: color .2s, background .2s;
}
.inq-del:hover { color: #e33; background: #fff0f0; }
.inquiry-empty { font-size: 13px; color: #999; text-align: center; padding: 16px 0; margin: 0; }

/* 表单区域 */
.inquiry-form { padding: 14px 18px 18px; }
.iq-row { display: flex; gap: 12px; }
.iq-field { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 0; }
.iq-field.iq-full { width: 100%; }
.iq-label {
  font-size: 12px; font-weight: 600; color: #555;
  display: flex; align-items: center; gap: 2px;
}
.iq-label small { color: #e33; font-size: 12px; }
.inquiry-form input, .inquiry-form textarea {
  width: 100%; padding: 8px 10px; border: 1px solid #e0e0e0; border-radius: 6px;
  font-size: 13px; font-family: inherit; background: #fafafa;
  transition: border-color .2s, box-shadow .2s;
}
.inquiry-form input:focus, .inquiry-form textarea:focus {
  outline: none; border-color: var(--orange); background: #fff;
  box-shadow: 0 0 0 3px rgba(245,110,20,0.08);
}
.inquiry-form textarea { resize: vertical; min-height: 60px; }
.inquiry-tip { font-size: 13px; color: #e33; min-height: 20px; margin: 10px 0 4px; }
.inquiry-tip.ok { color: #1a8a3f; }
.inquiry-ps { font-size: 12px; color: #999; text-align: center; margin: 12px 0 0; }

/* ===== 关于质德页面（参照设计图） ===== */
.about-hero { background: #1a1a2e; color: #fff; padding: 80px 0 60px; text-align: center; }
.about-hero-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.about-hero h1 { font-size: 36px; font-weight: 700; margin-bottom: 12px; }
.about-hero p { font-size: 16px; color: #aaa; max-width: 600px; margin: 0 auto; }
.about-layout { padding: 40px 0 60px; background: var(--bg); }
.about-main { display: flex; gap: 40px; align-items: flex-start; }
.about-text { flex: 1; min-width: 0; }
.about-text h2 { font-size: 22px; font-weight: 700; margin: 28px 0 14px; padding-bottom: 10px; border-bottom: 2px solid var(--orange); display: inline-block; }
.about-text h2:first-child { margin-top: 0; }
.about-text p { color: var(--text-light); line-height: 1.9; font-size: 14px; margin-bottom: 12px; }
.about-values { width: 320px; flex-shrink: 0; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.about-values h3 { font-size: 16px; font-weight: 700; margin-bottom: 16px; padding-bottom: 10px; border-bottom: 2px solid var(--orange); }
.about-values-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
.about-value-card { background: var(--bg-warm); border-radius: var(--radius); padding: 14px 16px; border-left: 3px solid var(--orange); }
.about-value-card h4 { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.about-value-card p { font-size: 13px; color: var(--text-light); line-height: 1.6; margin: 0; }
@media (max-width: 860px) {
  .about-main { flex-direction: column; }
  .about-values { width: 100%; }
}

/* ===== 解决方案列表页（参照设计图：hero横幅 + 12行业卡片网格） ===== */
.solutions-hero { background: radial-gradient(ellipse at 78% 18%, #173055 0%, #1a1a2e 50%, #0e0e1c 100%); color: #fff; padding: 48px 0; overflow: hidden; }
.solutions-hero-inner { display: flex; align-items: center; gap: 48px; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; text-align: left; }
.solutions-hero-left { flex: 1 1 52%; }
.solutions-hero-left h1 { font-size: 36px; font-weight: 700; margin-bottom: 14px; line-height: 1.25; }
.solutions-hero-left p { font-size: 15px; color: #c7d2e0; line-height: 1.8; max-width: 520px; margin-bottom: 22px; }
.solutions-hero-left .btn { padding: 10px 30px; font-size: 14px; }
.solutions-hero-media { flex: 1 1 48%; display: flex; justify-content: center; align-items: center; position: relative; min-height: 0; }
.solutions-hero-media img { width: 100%; max-width: 420px; height: auto; object-fit: cover; border-radius: var(--radius); box-shadow: 0 8px 30px rgba(0, 0, 0, .35); }
.solutions-layout { padding: 0 0 70px; background: var(--bg); }
.solutions-head { text-align: center; margin-bottom: 14px; }
.solutions-head h2 { font-size: 28px; font-weight: 700; color: var(--text); }
.solutions-head span { color: var(--text-light); font-size: 14px; text-transform: uppercase; letter-spacing: 2px; }
.solutions-layout .section-lead { text-align: center; color: var(--text-light); font-size: 15px; line-height: 1.8; max-width: 900px; margin: 0 auto 36px; }
.solutions-layout .industry-grid { grid-template-columns: repeat(4, 1fr); }
.solutions-more { margin-top: 44px; padding: 28px 32px; background: var(--bg-warm); border: 1px solid var(--border); border-radius: var(--radius); display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.solutions-more p { font-size: 15px; color: var(--text); }
.solutions-more .btn { padding: 10px 26px; }
@media (max-width: 1024px) {
  .solutions-hero { padding: 40px 0; }
  .solutions-hero-inner { flex-direction: column; gap: 24px; text-align: center; }
  .solutions-hero-left p { margin-left: auto; margin-right: auto; }
  .solutions-hero-media { min-height: 0; }
  .hero-glow { width: 240px; height: 240px; }
  .solutions-hero-media img { width: 190px; height: 190px; }
  .solutions-layout .industry-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 760px) {
  .solutions-layout .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .solutions-more { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .solutions-hero-left h1 { font-size: 26px; }
  .hero-glow { width: 200px; height: 200px; }
  .solutions-hero-media img { width: 160px; height: 160px; }
  .solutions-layout .industry-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== 产品列表页侧边栏精细化（参照设计图：勾选式分组） ===== */
.product-filter {
  width: 250px; flex-shrink: 0; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; position: sticky; top: 96px;
}
.filter-form { padding: 18px 20px 20px; }
.flt-search { position: relative; margin-bottom: 14px; }
.flt-search input[type="search"] {
  width: 100%; padding: 10px 38px 10px 14px; border: 1px solid var(--border);
  border-radius: var(--radius); font-size: 13px; transition: border-color .2s;
}
.flt-search input[type="search"]:focus { outline: none; border-color: var(--orange); }
.flt-search-btn {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: none; border: none; color: var(--text-light); cursor: pointer; padding: 6px;
}
.flt-search-btn:hover { color: var(--orange); }
.flt-group { border: none; padding: 0; margin: 0 0 14px; }
.flt-group .flt-label {
  display: block; font-size: 13px; color: var(--text); font-weight: 700;
  margin: 0 0 8px; padding-bottom: 6px; border-bottom: 1px solid var(--border);
}
/* 下拉式筛选（替代原 checkbox 网格） */
.filter-form select.flt-select {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 13px; background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23999' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 12px center;
  color: var(--text); cursor: pointer; -webkit-appearance: none; -moz-appearance: none; appearance: none;
  transition: border-color .2s;
}
.filter-form select.flt-select:focus { outline: none; border-color: var(--orange); }
.filter-form select.flt-select:hover { border-color: var(--orange-light); }
.flt-group .flt-select { margin-bottom: 8px; }
.filter-form .btn { margin-top: 4px; }
.filter-hot { margin-top: 0; padding: 16px 20px; border-top: 1px dashed var(--border); background: var(--bg-warm); }
.filter-hot h4 { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.filter-hot li { margin-bottom: 8px; }
.filter-hot li a { font-size: 13px; color: var(--text-light); display: flex; align-items: center; gap: 6px; }
.filter-hot li a::before { content: '›'; color: var(--orange); font-weight: 700; }
.filter-hot li a:hover { color: var(--orange); }

/* ===== 系列入口卡片网格（参照设计图 image57：全品类总览） ===== */
.series-entry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.series-entry {
  display: block; background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: transform .25s, box-shadow .25s;
}
.series-entry:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.series-entry-media { display: block; height: 150px; overflow: hidden; background: #eef2f7; }
.series-entry-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.series-entry:hover .series-entry-media img { transform: scale(1.05); }
.series-entry-body { display: block; padding: 16px 18px 18px; }
.series-entry-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; color: var(--text); display: flex; align-items: center; justify-content: space-between; }
.series-entry-body h3 em { font-style: normal; font-size: 12px; font-weight: 600; color: var(--orange); background: #fff3e8; padding: 2px 8px; border-radius: 12px; }
.series-entry-body p { font-size: 13px; color: var(--text-light); line-height: 1.7; margin-bottom: 12px; min-height: 44px; }
.series-entry-link { font-size: 13px; font-weight: 600; color: var(--orange); }
.series-entry-link:hover { text-decoration: underline; }
@media (max-width: 1200px) { .series-entry-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 900px) { .series-entry-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .series-entry-grid { grid-template-columns: 1fr; } }

/* ===== 产品详情页卖点横幅与图标网格（参照设计图 image59） ===== */
.detail-slogan {
  background: linear-gradient(135deg, #1a1a2e 0%, #2b2b4d 100%);
  border-radius: var(--radius); padding: 34px 36px; color: #fff; text-align: center;
  margin-bottom: 28px; position: relative; overflow: hidden;
}
.detail-slogan::after {
  content: ''; position: absolute; right: -60px; top: -60px; width: 220px; height: 220px;
  border-radius: 50%; background: radial-gradient(circle, rgba(240,123,63,.25) 0%, transparent 70%);
}
.detail-slogan h2 { font-size: 24px; font-weight: 700; margin-bottom: 8px; letter-spacing: 2px; }
.detail-slogan p { font-size: 15px; color: #ffb08a; font-weight: 500; margin-bottom: 6px; }
.detail-slogan span { display: inline-block; font-size: 12.5px; color: #9aa3b5; margin-top: 6px; }
.benefit-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; margin-bottom: 32px;
}
.benefit-item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px 14px; text-align: center; transition: transform .25s, box-shadow .25s, border-color .25s;
}
.benefit-item:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--orange); }
.benefit-icon {
  display: inline-flex; align-items: center; justify-content: center; width: 52px; height: 52px;
  border-radius: 50%; background: var(--bg-warm); color: var(--orange); margin-bottom: 12px;
}
.benefit-icon svg { width: 26px; height: 26px; }
.benefit-item b { display: block; font-size: 14.5px; color: var(--text); margin-bottom: 4px; }
.benefit-item small { font-size: 12px; color: var(--text-light); line-height: 1.5; display: block; }
@media (max-width: 1100px) { .benefit-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .benefit-grid { grid-template-columns: repeat(2, 1fr); } }

/* ===== 详情页响应式 ===== */
@media (max-width: 1100px) {
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .detail-top { flex-direction: column; }
  .detail-media { flex: none; width: 100%; }
  .detail-media img { height: 260px; }
}
@media (max-width: 640px) {
  .product-detail { padding: 20px 16px; }
  .inquiry-dock { right: 12px; bottom: 12px; }
  .inquiry-panel { width: 300px; }
}

/* ===== 移动端适配：汉堡导航 / 筛选折叠 / 关联热点横滑 / 表格滚动 ===== */
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer; padding: 8px 4px;
  align-items: center; justify-content: center;
}
.nav-toggle svg { width: 26px; height: 26px; fill: none; stroke: var(--text); stroke-width: 2; stroke-linecap: round; }
.nav-toggle.on svg { stroke: var(--orange); }

.nav-mobile { display: none; background: #fff; border-top: 1px solid var(--border); box-shadow: 0 12px 24px rgba(0,0,0,.08); }
.nav-mobile.open { display: block; }
.nav-mobile a {
  display: block; padding: 15px 24px; font-size: 15px; color: var(--text);
  border-bottom: 1px solid var(--border); position: relative; transition: background .15s, color .15s;
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a:hover { background: var(--bg-warm); }
.nav-mobile a.active { color: var(--orange); font-weight: 600; background: var(--bg-warm); }
.nav-mobile a.active::after {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--orange);
}

/* 产品筛选折叠按钮（仅移动端显示） */
.filter-toggle {
  display: none; align-items: center; gap: 8px; width: 100%; padding: 12px 16px;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 14px; font-weight: 600; color: var(--text); cursor: pointer;
  margin-bottom: 14px; transition: border-color .2s, color .2s;
}
.filter-toggle svg { width: 16px; height: 16px; color: var(--orange); }
.filter-toggle .filter-badge {
  min-width: 20px; height: 20px; line-height: 20px; text-align: center; padding: 0 6px;
  background: var(--orange); color: #fff; border-radius: 10px; font-size: 12px; font-weight: 700;
}
.filter-toggle .filter-arrow { margin-left: auto; font-style: normal; font-size: 13px; color: var(--text-light); transition: transform .2s; }
.filter-toggle.active { border-color: var(--orange); color: var(--orange); }
.filter-toggle.active .filter-arrow { transform: rotate(180deg); color: var(--orange); }

/* 详情页规格表横向滚动容器 */
.spec-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.spec-table-wrap .spec-table { min-width: 420px; }

@media (max-width: 900px) {
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
  /* 筛选面板默认折叠，点按钮展开（无筛选条件时避免抢占首屏） */
  .product-filter { display: none; }
  .product-filter.open { display: block; }
  .filter-toggle { display: flex; }
}
@media (max-width: 700px) {
  /* 关联产品 / 热点产品：移动端横向滑动展开，避免过长的单列堆叠 */
  .product-detail .product-block-grid, .product-detail .product-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 14px; padding: 2px 2px 10px; margin: 0 -2px; }
  .product-detail .product-block-grid .card, .product-detail .product-grid .product-card { flex: 0 0 78%; scroll-snap-align: start; }
  .product-detail .product-block-grid::-webkit-scrollbar, .product-detail .product-grid::-webkit-scrollbar { height: 4px; }
  .product-detail .product-block-grid::-webkit-scrollbar-thumb, .product-detail .product-grid::-webkit-scrollbar-thumb { background: #d5d5d5; border-radius: 2px; }
}

/* ===== 关于质德页面（参照设计图 v2） ===== */
.about-intro { padding: 40px 0 60px; }
.about-intro-grid { display: flex; gap: 48px; align-items: flex-start; }
.about-intro-text { flex: 1; }
.about-intro-text .about-label { font-size: 13px; color: #999; letter-spacing: 2px; text-transform: uppercase; display: block; margin-bottom: 6px; }
.about-intro-text h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.about-intro-text .about-slogan { color: var(--orange); font-size: 16px; font-weight: 600; margin-bottom: 18px; }
.about-intro-text p { color: var(--text-light); line-height: 1.9; font-size: 14px; margin-bottom: 12px; }
.about-stats { display: flex; gap: 24px; margin: 24px 0; flex-wrap: wrap; }
.about-stat { text-align: center; min-width: 80px; }
.about-stat strong { display: block; font-size: 28px; font-weight: 700; color: var(--orange); line-height: 1.2; }
.about-stat span { font-size: 13px; color: var(--text-light); }
.about-btns { display: flex; gap: 14px; margin-top: 20px; }
.about-btns .btn-outline { border-color: var(--blue); color: var(--blue); }
.about-btns .btn-outline:hover { background: var(--blue); color: #fff; }
.about-intro-media { flex: 0 0 420px; }
.about-intro-media img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); }

.about-culture { background: #f5f7fa; padding: 60px 0; }
.culture-grid { display: flex; gap: 24px; align-items: stretch; }
.culture-banner { flex: 0 0 180px; background: linear-gradient(135deg, #1a3a6c 0%, #0d1f3c 100%); color: #fff; border-radius: var(--radius); padding: 30px 20px; display: flex; flex-direction: column; justify-content: center; text-align: center; }
.culture-banner span { font-size: 12px; letter-spacing: 2px; color: rgba(255,255,255,.7); margin-bottom: 14px; }
.culture-banner strong { font-size: 22px; font-weight: 700; line-height: 1.6; }
.culture-cards { flex: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.culture-card { background: #fff; border-radius: var(--radius); padding: 24px; border: 1px solid var(--border); }
.culture-card.wide { grid-column: 1 / -1; }
.culture-card h4 { font-size: 14px; color: var(--orange); letter-spacing: 1px; margin-bottom: 4px; }
.culture-card h5 { font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.culture-card p { font-size: 14px; color: var(--text-light); line-height: 1.8; }
.culture-icon { width: 48px; height: 48px; margin-bottom: 12px; background: var(--bg-warm); border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.culture-icon::before { content: ''; width: 24px; height: 24px; background: var(--orange); mask-size: contain; mask-repeat: no-repeat; mask-position: center; -webkit-mask-size: contain; -webkit-mask-repeat: no-repeat; -webkit-mask-position: center; }

.about-strengths { padding: 60px 0; }
.strengths-grid { display: flex; gap: 32px; }
.strengths-col { flex: 1; }
.strengths-title-orange { color: var(--orange); font-size: 18px; font-weight: 700; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--orange); }
.strengths-title-blue { color: var(--blue); font-size: 18px; font-weight: 700; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--blue); }
.strengths-divider { width: 1px; background: var(--border); }
.strength-item { display: flex; gap: 12px; margin-bottom: 18px; padding-bottom: 18px; border-bottom: 1px dashed var(--border); }
.strength-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.strength-num { flex: 0 0 36px; height: 36px; background: var(--orange); color: #fff; font-size: 14px; font-weight: 700; display: flex; align-items: center; justify-content: center; border-radius: 4px; }
.strengths-col:last-child .strength-num { background: var(--blue); }
.strength-body h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.strength-body h4 em { font-size: 12px; color: #fff; background: var(--orange); padding: 2px 8px; border-radius: 4px; margin-left: 8px; font-style: normal; font-weight: 400; }
.strengths-col:last-child .strength-body h4 em { background: var(--blue); }
.strength-body p { font-size: 13px; color: var(--text-light); line-height: 1.7; margin: 0; }

@media (max-width: 900px) {
  .about-intro-grid { flex-direction: column; }
  .about-intro-media { flex: none; width: 100%; max-width: 420px; margin: 0 auto; }
  .culture-grid { flex-direction: column; }
  .culture-banner { flex: none; width: 100%; padding: 20px; flex-direction: row; gap: 12px; }
  .culture-banner strong { font-size: 18px; }
  .strengths-grid { flex-direction: column; }
  .strengths-divider { display: none; }
}
@media (max-width: 640px) {
  .culture-cards { grid-template-columns: 1fr; }
  .culture-card.wide { grid-column: auto; }
  .about-stats { gap: 14px; }
  .about-stat strong { font-size: 22px; }
}

/* ===== 技术服务页 ===== */
.service-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 28px; padding: 20px 0 40px; max-width: 1100px; margin: 0 auto; }
.service-item { flex: 0 0 320px; max-width: 100%; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 28px; text-align: center; transition: transform .25s, box-shadow .25s; }
.service-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.service-item .si-icon { width: 56px; height: 56px; margin: 0 auto 16px; border-radius: 50%; background: var(--orange); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 700; }
.service-item h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.service-item p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin: 0; }
.section-cta { background: linear-gradient(135deg, #f26522 0%, #e85d1f 100%); color: #fff; padding: 60px 0; text-align: center; }
.section-cta h2 { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.section-cta p { font-size: 15px; margin-bottom: 20px; opacity: .9; }
.section-cta .btn-primary { background: #fff; color: var(--orange); }
.section-cta .btn-primary:hover { background: #fff5f0; }

/* ===== 联系我们页 ===== */
.contact-cards-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; padding: 20px 0 40px; }
.contact-card-v2 { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 24px; text-align: center; }
.contact-card-icon { width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 50%; background: #fff5f0; color: var(--orange); display: flex; align-items: center; justify-content: center; }
.contact-card-icon svg { stroke: currentColor; }
.contact-card-v2 h4 { font-size: 15px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.contact-card-value { font-size: 18px; font-weight: 700; color: var(--orange); margin-bottom: 4px; }
.contact-card-value a { color: var(--orange); text-decoration: none; }
.contact-card-value a:hover { text-decoration: underline; }
.contact-card-muted { font-size: 13px; color: var(--text-light); margin: 0; }
.contact-form-v2 { max-width: 100%; margin: 0 auto; }
.contact-form-v2 .form-row-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.contact-form-v2 .form-row-grid.two-col { grid-template-columns: repeat(2, 1fr); }
.contact-form-v2 .form-row { margin-bottom: 16px; }
.contact-form-v2 label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.contact-form-v2 input, .contact-form-v2 textarea, .contact-form-v2 select {
  width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 14px; transition: border-color .2s; background: #fff;
}
.contact-form-v2 input:focus, .contact-form-v2 textarea:focus, .contact-form-v2 select:focus { outline: none; border-color: var(--orange); }
.contact-form-v2 textarea { min-height: 120px; }
.form-submit-row { text-align: center; padding-top: 8px; }
.form-submit-row button { padding: 14px 48px; background: var(--orange); color: #fff; border: none; border-radius: var(--radius); font-size: 15px; font-weight: 600; cursor: pointer; transition: background .2s; }
.form-submit-row button:hover { background: var(--orange-dark); }
.contact-map-section .map-wrap { display: flex; gap: 24px; align-items: stretch; }
.contact-map-section .static-map-card { flex: 1; min-height: 420px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); background: #f5f7fa; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 32px; text-align: center; }
.static-map-visual { display: flex; flex-direction: column; align-items: center; gap: 8px; margin-bottom: 24px; }
.static-map-address strong { display: block; font-size: 18px; color: var(--text); margin-bottom: 4px; }
.static-map-address span { display: block; font-size: 14px; color: #888; }
.static-map-nav { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.static-map-nav .btn { display: inline-flex; align-items: center; gap: 6px; }
.nav-icon { display: inline-block; width: 22px; height: 22px; line-height: 22px; text-align: center; border-radius: 4px; font-size: 12px; font-weight: 700; }
.static-map-nav .btn:nth-child(1) .nav-icon { background: #00a650; color: #fff; }
.static-map-nav .btn:nth-child(2) .nav-icon { background: #3385ff; color: #fff; }
.static-map-nav .btn:nth-child(3) .nav-icon { background: #00b4f0; color: #fff; }
@media (max-width: 900px) {
  .contact-map-section .static-map-card { min-height: 280px; padding: 24px; }
}
.map-info-card { flex: 0 0 320px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.map-info-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.map-info-card dl { margin: 0 0 14px; }
.map-info-card dt { font-size: 12px; color: #999; margin-bottom: 2px; }
.map-info-card dd { font-size: 14px; color: var(--text); margin: 0; }
.map-info-card dd a { color: var(--orange); text-decoration: none; }
.map-actions { display: flex; gap: 10px; margin-top: 18px; flex-wrap: wrap; }
.map-actions .btn { flex: 1; min-width: 120px; text-align: center; }

@media (max-width: 900px) {
  .service-item { flex: 0 0 280px; }
  .contact-cards-row { grid-template-columns: 1fr; }
  .contact-map-section .map-wrap { flex-direction: column; }
  .map-info-card { flex: none; width: 100%; }
  .contact-form-v2 .form-row-grid { grid-template-columns: 1fr; }
  .contact-form-v2 .form-row-grid.two-col { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .service-item { flex: 1 1 100%; }
}