/* 广州突击豹防水公司网站 - 科技感、大气、简约风格 */
:root {
  --red: #C62828;
  --red-dark: #8E0000;
  --red-light: #FF5F52;
  --navy: #0A1628;
  --navy-light: #101E36;
  --slate: #1E293B;
  --gray: #94A3B8;
  --light: #F8FAFC;
  --white: #FFFFFF;
  --metal: linear-gradient(135deg, #E2E8F0 0%, #94A3B8 50%, #CBD5E1 100%);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-display: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", var(--font-sans);
  --shadow: 0 10px 30px rgba(2, 6, 23, 0.25);
  --radius: 8px;
  --container: 1280px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  line-height: 1.7;
  color: var(--slate);
  background: var(--light);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--red);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--red-dark);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--navy);
}

.brand img {
  border-radius: 4px;
}

.brand-name {
  display: block;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--red);
}

.brand-slogan {
  display: block;
  font-size: 0.75rem;
  color: var(--gray);
  margin-top: -2px;
}

.main-nav ul {
  display: flex;
  gap: 8px;
  list-style: none;
}

.main-nav a {
  display: block;
  padding: 10px 16px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--slate);
  border-radius: var(--radius);
  transition: all 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--red);
  background: rgba(198, 40, 40, 0.06);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  transition: transform 0.3s;
}

/* Hero */
.hero {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  background: var(--navy);
  color: var(--white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(198, 40, 40, 0.18), transparent 45%),
              linear-gradient(135deg, #0A1628 0%, #101E36 60%, #1E293B 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red-light);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero h1 .accent {
  color: var(--red-light);
}

.hero-lead {
  font-size: 1.15rem;
  color: var(--gray);
  max-width: 540px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--red);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(198, 40, 40, 0.35);
}

.btn-primary:hover {
  background: var(--red-dark);
  color: var(--white);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.14);
  color: var(--white);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.stat-card {
  padding: 24px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-card strong {
  display: block;
  font-size: 2rem;
  color: var(--white);
  font-weight: 800;
}

.stat-card span {
  font-size: 0.9rem;
  color: var(--gray);
}

.hero-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
}

.hero-visual .cert-showcase {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.cert-showcase img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Hero featured video */
.hero-video {
  width: 100%;
  margin-bottom: 18px;
}
.hero-video .video-player-wrap,
.hero-video .video-placeholder {
  border-radius: var(--radius);
}
.video-poster {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.video-poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.video-poster .play-badge {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(198, 40, 40, 0.92);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
  transition: transform 0.2s ease;
}
.video-poster:hover .play-badge {
  transform: translate(-50%, -50%) scale(1.08);
}
.hero-video-caption {
  display: block;
  margin-top: 12px;
  font-size: 0.95rem;
  color: var(--slate);
  font-weight: 600;
  text-decoration: none;
}
.hero-video-caption:hover {
  color: var(--red);
}
/* Cert strip below hero video：一行两个，大气排版 */
.cert-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  width: 100%;
}
.cert-strip img {
  width: 100%;
  border-radius: 6px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Case detail video block */
.case-video {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-bottom: 8px;
}
.case-video .video-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}
.case-video .video-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: #cbd5e1;
  text-align: center;
  padding: 20px;
}
.case-video .video-placeholder img {
  max-height: 60%;
  border-radius: 8px;
  opacity: 0.85;
}

/* Section common */
.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--white);
}

.section-dark {
  background: var(--navy);
  color: var(--white);
}

.section-header {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-label {
  display: inline-block;
  color: var(--red);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--gray);
}

.section-dark .section-header p {
  color: rgba(255, 255, 255, 0.7);
}

/* Services grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(2, 6, 23, 0.06);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.service-card .thumb {
  aspect-ratio: 16/10;
  overflow: hidden;
}

.service-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.service-card:hover .thumb img {
  transform: scale(1.05);
}

.service-card .body {
  padding: 24px;
}

.service-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--navy);
}

.service-card p {
  font-size: 0.95rem;
  color: var(--gray);
  margin-bottom: 16px;
  line-height: 1.6;
}

.service-card .link {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--red);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* About section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-content h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: var(--navy);
}

.about-content p {
  color: var(--slate);
  margin-bottom: 16px;
}

.about-points {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.about-point {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.about-point .icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(198, 40, 40, 0.1);
  color: var(--red);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-size: 0.8rem;
}

.about-media {
  position: relative;
}

.about-media img {
  border-radius: 12px;
  box-shadow: var(--shadow);
}

/* Certificates */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.cert-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  transition: transform 0.3s;
}

.cert-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.16);
}

.cert-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: contain;
  border-radius: 8px;
  margin-bottom: 16px;
}

.cert-card h3 {
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 6px;
}

.cert-card span {
  display: inline-block;
  padding: 4px 12px;
  background: var(--red);
  color: var(--white);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
}

/* Cases */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  display: block;
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(2, 6, 23, 0.06);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: transform 0.3s, box-shadow 0.3s;
}

.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.case-card .thumb {
  display: block;
  aspect-ratio: 16/10;
  overflow: hidden;
  position: relative;
}

.case-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.case-card:hover .thumb img,
.case-card .thumb:hover img {
  transform: scale(1.12);
}

.case-card .body {
  padding: 22px;
}

.case-card .meta {
  display: flex;
  gap: 12px;
  margin-bottom: 10px;
  font-size: 0.8rem;
  color: var(--gray);
}

.case-card .meta span {
  padding: 2px 8px;
  background: rgba(198, 40, 40, 0.06);
  border-radius: 4px;
  color: var(--red);
}

.case-card h3 {
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: 10px;
  line-height: 1.4;
}

.cert-mini {
  background: var(--navy);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 10px;
  text-align: center;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(2, 6, 23, 0.08);
  transition: transform 0.3s, box-shadow 0.3s;
}

.cert-mini:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow);
}

.cert-mini img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
  border-radius: 4px;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.cert-mini:hover img {
  transform: scale(1.12);
}

.cert-mini-name {
  display: block;
  margin-top: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1.3;
}

.cert-mini-link {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.78rem;
  color: var(--red-light);
  font-weight: 600;
  transition: transform 0.2s;
}

.cert-mini:hover .cert-mini-link {
  transform: translateX(3px);
}

.case-card .link {
  display: inline-block;
  margin-top: 14px;
  color: var(--red);
  font-size: 0.9rem;
  font-weight: 600;
  transition: transform 0.25s, color 0.25s;
}

.case-card .link:hover {
  transform: translateX(4px);
  color: var(--red-dark);
}

.case-card p {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.5;
}

/* Articles */
.articles-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.article-card {
  display: flex;
  gap: 20px;
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(2, 6, 23, 0.06);
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.article-card .thumb {
  width: 272px;
  flex-shrink: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #eef2f7;
}

/* 新闻资讯详情：配图统一 16:9（竖图按 16:9 取景裁切，避免超长拉页） */
.news-gallery .case-hero-img {
  margin: 0 0 16px;
}
.news-gallery .case-hero-img img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.news-gallery .case-thumbs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.news-gallery .case-thumbs figure {
  margin: 0;
}
.news-gallery .case-thumbs img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  border-radius: 10px;
}
@media (max-width: 640px) {
  .news-gallery .case-thumbs {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 无图集文章：主图同样按 16:9 展示 */
.article-hero {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  border-radius: 12px;
  margin-bottom: 32px;
  box-shadow: var(--shadow);
}

/* 资质证书卡（关于我们/首页）：图片统一 16:9，标题小而精致，无红底标签 */
/* 一行两个大图：证书内容要看清，四列时图片太小 */
.cert-grid-cert {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}
.cert-grid-cert .cert-card {
  padding: 14px 14px 16px;
}
.cert-grid-cert .cert-card img {
  aspect-ratio: 16 / 9;
  object-fit: contain;
  margin-bottom: 12px;
}
.cert-grid-cert .cert-card h3 {
  font-size: .85rem;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: .3px;
  color: rgba(255, 255, 255, .85);
  margin-bottom: 0;
}

.article-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.article-card .body {
  padding: 22px 22px 22px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.article-card h3 {
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: 10px;
  line-height: 1.4;
}

.article-card p {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.5;
  margin-bottom: 12px;
}

.article-card .date {
  font-size: 0.8rem;
  color: var(--gray);
}

/* CTA */
.cta {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--red) 0%, var(--red-dark) 100%);
  color: var(--white);
  text-align: center;
}

.cta h2 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.cta p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 28px;
}

.cta .btn {
  background: var(--white);
  color: var(--red);
}

.cta .btn:hover {
  color: var(--red-dark);
}

/* Footer */
.site-footer {
  background: var(--navy);
  color: var(--white);
  padding-top: 64px;
}

.footer-grid {
  display: grid;
  /* 快速导航区块已移除：品牌 / 联系方式 / 公众号二维码 三列 */
  grid-template-columns: 1.6fr 2fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand img {
  margin-bottom: 16px;
}

.footer-brand strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.footer-brand p {
  color: var(--gray);
  font-size: 0.9rem;
}

.footer-links h3,
.footer-contact h3,
.footer-qr h3 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--white);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: var(--gray);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-contact p,
.footer-qr p {
  color: var(--gray);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.footer-bottom {
  padding: 20px 0;
  background: rgba(0, 0, 0, 0.2);
  text-align: center;
  font-size: 0.85rem;
  color: var(--gray);
}

.footer-bottom a {
  color: var(--gray);
}

/* Breadcrumbs */
.breadcrumbs {
  background: var(--white);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  padding: 16px 0;
  font-size: 0.85rem;
  color: var(--gray);
}

.breadcrumbs a {
  color: var(--slate);
}

.breadcrumbs a:hover {
  color: var(--red);
}

/* Page header */
.page-header {
  padding: 80px 0;
  background: var(--navy);
  color: var(--white);
  text-align: center;
}

.page-header h1 {
  font-size: 2.4rem;
  margin-bottom: 12px;
}

.page-header p {
  color: var(--gray);
  max-width: 700px;
  margin: 0 auto;
}

/* Content page */
.content-page {
  padding: 64px 0;
}

.content-page .container {
  max-width: 900px;
}

.content-page h1 {
  font-size: 2rem;
  color: var(--navy);
  margin-bottom: 16px;
}

.content-page h2 {
  font-size: 1.5rem;
  color: var(--navy);
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(198, 40, 40, 0.12);
}

.content-page h3 {
  font-size: 1.2rem;
  color: var(--navy);
  margin-top: 28px;
  margin-bottom: 12px;
}

.content-page p {
  margin-bottom: 16px;
  color: var(--slate);
}

.content-page ul,
.content-page ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

.content-page li {
  margin-bottom: 8px;
}

.content-page strong {
  color: var(--red);
}

.meta-bar {
  display: flex;
  gap: 16px;
  color: var(--gray);
  font-size: 0.85rem;
  margin-bottom: 24px;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info {
  display: grid;
  gap: 24px;
}

.contact-item {
  padding: 24px;
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(2, 6, 23, 0.04);
}

.contact-item h3 {
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: 8px;
}

.contact-item p {
  color: var(--slate);
  font-size: 0.95rem;
}

.contact-form {
  background: var(--white);
  padding: 32px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(2, 6, 23, 0.04);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--navy);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--red);
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}

/* FAQ */
.faq-list {
  display: grid;
  gap: 18px;
  max-width: 880px;
  margin: 0 auto;
}
.faq-item {
  background: var(--white);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 12px;
  padding: 24px 28px;
  box-shadow: var(--shadow);
}
.faq-q {
  font-size: 1.18rem;
  color: var(--navy);
  margin-bottom: 10px;
  line-height: 1.5;
}
.faq-a {
  color: var(--slate);
  margin: 0;
  line-height: 1.8;
}


.pagination a,
.pagination span {
  padding: 10px 16px;
  border-radius: var(--radius);
  background: var(--white);
  color: var(--slate);
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.pagination .current {
  background: var(--red);
  color: var(--white);
}

/* Tags */
.tag-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  padding: 4px 10px;
  background: rgba(198, 40, 40, 0.06);
  color: var(--red);
  border-radius: 50px;
  font-size: 0.8rem;
}

/* Utility */
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-3 { margin-bottom: 24px; }

/* Responsive */
@media (max-width: 1024px) {
  .services-grid,
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

  /* ===== Video center ===== */
  .video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 28px;
    margin-top: 36px;
  }
  /* 视频中心：一行两个，横向卡片（封面不占满宽，简介有位置） */
  .video-grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
  /* 视频中心：一行三个，纵向卡片（封面 16:9 在上） */
  .video-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
  .video-grid-3 .video-card {
    grid-template-columns: 1fr;
  }
  .video-grid-3 .video-thumb {
    height: auto;
    aspect-ratio: 16 / 9;
    min-height: 0;
  }
  .video-grid-home {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
  }
  .video-card {
    display: grid;
    grid-template-columns: minmax(0, 42%) minmax(0, 1fr);
    align-items: stretch;
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    text-decoration: none;
    color: inherit;
    transition: transform .25s ease, box-shadow .25s ease;
    border: 1px solid rgba(148,163,184,.18);
  }
  .video-grid-home .video-card,
  .video-grid:not(.video-grid-2) .video-card {
    grid-template-columns: 1fr;
  }
  .video-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 40px rgba(2,6,23,.32);
  }
  .video-thumb {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    align-self: start;
  }
  .video-grid-2 .video-thumb {
    height: 100%;
    aspect-ratio: auto;
    min-height: 150px;
  }
  .video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }
  .play-badge {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(198,40,40,.92);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    box-shadow: 0 6px 18px rgba(0,0,0,.4);
    transition: transform .2s ease;
  }
  .video-card:hover .play-badge { transform: translate(-50%, -50%) scale(1.1); }
  .video-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(10,22,40,.78);
    color: #fff;
    font-size: .7rem;
    padding: 3px 9px;
    border-radius: 20px;
    letter-spacing: .5px;
  }
  /* 封面放大按钮：看不清施工细节时点它看大图 */
  .v-zoom {
    position: absolute; top: 8px; right: 8px; z-index: 3;
    width: 32px; height: 32px; border: 0; border-radius: 50%; cursor: pointer;
    background: rgba(255,255,255,.92); color: #0A1628; font-size: 15px; line-height: 1;
    box-shadow: 0 3px 10px rgba(2,6,23,.35); transition: transform .2s;
  }
  .v-zoom:hover { transform: scale(1.12); background: #fff; }
  @media (max-width: 768px) { .v-zoom { width: 36px; height: 36px; font-size: 17px; } }
  .video-meta { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 8px; }
  .video-meta h3 {
    font-size: 1.05rem;
    line-height: 1.45;
    color: var(--navy);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .video-meta p { color: var(--gray); font-size: .92rem; margin: 0; }
  /* 视频简介（卡片下方展示，利于 SEO 与点击转化） */
  .video-desc {
    color: #64748b;
    font-size: .86rem;
    line-height: 1.7;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .video-grid-home .video-desc { -webkit-line-clamp: 2; }
  .video-card-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 2px;
  }
  .btn-sm {
    padding: 7px 14px;
    font-size: .82rem;
    line-height: 1.2;
    border-radius: 999px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
  }
  .video-player-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
  }
  .video-player-wrap .video-frame {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
  }
  .video-player-wrap .video-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: #cbd5e1;
    text-align: center;
    padding: 20px;
  }
  .video-placeholder img { max-height: 60%; border-radius: 8px; opacity: .85; }
  .related-box { margin-top: 40px; }
  .related-box h3 { color: var(--navy); margin-bottom: 16px; font-size: 1.3rem; }
  .related-card {
    display: flex;
    gap: 16px;
    align-items: center;
    background: var(--light);
    padding: 14px;
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    border: 1px solid rgba(148,163,184,.2);
  }
  .related-card img { width: 140px; height: 90px; object-fit: cover; border-radius: 6px; }
  .cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 36px; }
  .empty { color: var(--gray); text-align: center; padding: 40px; }
@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .hero-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 2.2rem;
  }
  .hero-stats {
    grid-template-columns: 1fr;
  }
  .services-grid,
  .cases-grid,
  .articles-list,
  .cert-grid {
    grid-template-columns: 1fr;
  }
  .article-card {
    flex-direction: column;
  }
  .article-card .thumb {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
  }
  .article-card .body {
    padding: 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .section-header h2 {
    font-size: 1.8rem;
  }

  .cert-strip { grid-template-columns: repeat(2, 1fr); gap: 12px; }

  /* ===== Mobile refinements ===== */
  .header-inner { height: 60px; }
  .brand-slogan { font-size: 0.7rem; }
  .hero { min-height: auto; padding: 32px 0 44px; }
  .hero-lead { font-size: 1rem; max-width: 100%; margin-bottom: 24px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; text-align: center; padding: 15px 20px; }
  .hero-badge { font-size: 0.78rem; margin-bottom: 16px; }
  .section { padding: 54px 0; }
  .page-header { padding: 52px 0 22px; }
  .page-header h1 { font-size: 1.7rem; }
  .page-header p { font-size: 0.95rem; }
  .content-page { padding: 28px 0 52px; }
  .content-page h2 { font-size: 1.35rem; margin: 30px 0 12px; }
  .meta-bar { flex-direction: column; align-items: flex-start; gap: 6px; }
  .cta { padding: 54px 0; }
  .cta h2 { font-size: 1.5rem; }
  .cta p { font-size: 1rem; }
  .cta .btn { width: 100%; max-width: 340px; padding: 15px 24px; }
  .video-grid,
  .video-grid-2,
  .video-grid-3,
  .video-grid-home { grid-template-columns: 1fr; gap: 20px; }
  .video-grid-2 .video-card { grid-template-columns: minmax(0, 40%) minmax(0, 1fr); }
  .video-grid-2 .video-thumb { aspect-ratio: 16 / 9; height: auto; min-height: 0; }
  .related-card { flex-direction: column; align-items: flex-start; }
  .related-card img { width: 100%; height: 180px; }
  .contact-form { padding: 24px 20px; }
  .form-group input,
  .form-group select,
  .form-group textarea { padding: 14px 12px; font-size: 16px; }
  .footer-bottom p { font-size: 0.78rem; line-height: 1.6; }
  .breadcrumbs { font-size: 0.82rem; padding: 12px 0; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero h1 { font-size: 1.7rem; }
  .section-header h2 { font-size: 1.45rem; }
  .section { padding: 42px 0; }
  .section-header { margin-bottom: 28px; }
  .brand-slogan { display: none; }
  .hero-stats { gap: 10px; }
  .stat-card strong { font-size: 1.5rem; }
  .stat-card span { font-size: 0.78rem; }
  .cta .btn { max-width: 100%; }
  .content-page, .article-detail { font-size: 0.96rem; }
  .footer-grid { gap: 24px; }
  .footer-qr img { width: 90px; height: 90px; }
  .case-video { aspect-ratio: 16 / 9; }
}

/* City links (home service areas) */
.city-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 32px;
}
.city-link {
  display: inline-block;
  padding: 12px 26px;
  background: var(--white);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 50px;
  font-weight: 600;
  color: var(--navy);
  box-shadow: var(--shadow);
  transition: all 0.2s ease;
}
.city-link:hover {
  color: #fff;
  background: var(--red);
  border-color: var(--red);
  transform: translateY(-2px);
}

/* 视频播放器与全屏 */
.video-wrap {
  position: relative;
  width: 100%;
  line-height: 0;
}

.video-wrap .video-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  background: #000;
  border-radius: var(--radius);
}

.video-wrap video.video-frame {
  object-fit: contain;
}

.fullscreen-btn {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1;
  color: #fff;
  background: rgba(198, 40, 40, 0.92);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.25s, transform 0.25s;
}

.fullscreen-btn:hover {
  background: var(--red-dark);
  transform: scale(1.04);
}

.video-wrap video:fullscreen,
.video-wrap video:-webkit-full-screen {
  width: 100vw;
  height: 100vh;
  object-fit: contain;
  background: #000;
}

@media (max-width: 768px) {
  .fullscreen-btn {
    right: 8px;
    bottom: 8px;
    padding: 6px 12px;
    font-size: 0.8rem;
  }
}

/* 视频播放弹层 */
.video-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(4, 10, 22, 0.88);
  backdrop-filter: blur(4px);
}

.video-lightbox .lb-inner {
  position: relative;
  width: min(720px, 100%);
  line-height: 0;
}

/* 全屏时铺满整个屏幕 */
.video-lightbox .lb-inner:fullscreen,
.video-lightbox .lb-inner:-webkit-full-screen {
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
}

.video-lightbox .lb-inner:fullscreen .lb-video,
.video-lightbox .lb-inner:-webkit-full-screen .lb-video {
  width: 100vw;
  height: 100vh;
  aspect-ratio: auto;
  border-radius: 0;
  box-shadow: none;
}

.video-lightbox .lb-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  background: #000;
  border-radius: 10px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

.video-lightbox .lb-close {
  position: absolute;
  top: -44px;
  right: 0;
  width: 36px;
  height: 36px;
  font-size: 26px;
  line-height: 1;
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.25s;
}

.video-lightbox .lb-close:hover {
  background: var(--red);
}

.video-lightbox .lb-empty {
  padding: 40px;
  color: #fff;
  line-height: 1.6;
  text-align: center;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 10px;
}

.video-card .video-thumb {
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
}

@media (max-width: 768px) {
  .video-lightbox {
    padding: 12px;
  }
  .video-lightbox .lb-close {
    top: -40px;
  }
}

/* 弹层全屏按钮 */
.video-lightbox .lb-fullscreen {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 6;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1;
  color: #fff;
  background: rgba(198, 40, 40, 0.92);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.25s, transform 0.25s;
}

.video-lightbox .lb-fullscreen:hover {
  background: var(--red-dark);
  transform: scale(1.04);
}

@media (max-width: 768px) {
  .video-lightbox .lb-fullscreen {
    top: 8px;
    right: 8px;
    padding: 6px 12px;
    font-size: 0.8rem;
  }
}

/* 案例详情图集 */
.case-gallery {
  margin-bottom: 32px;
}

.case-hero-img {
  margin: 0;
}

.case-hero-img img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.case-hero-img figcaption {
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--gray);
  line-height: 1.5;
}

/* 正文内嵌配图：按语义插入到对应段落之后 */
.inline-figure {
  margin: 26px 0;
}
.inline-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.inline-figure figcaption {
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--gray);
  line-height: 1.5;
  text-align: center;
}

.case-thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.case-thumbs figure {
  margin: 0;
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(2, 6, 23, 0.08);
}

.case-thumbs img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.case-thumbs figure:hover img {
  transform: scale(1.08);
}

@media (max-width: 768px) {
  .case-thumbs {
    grid-template-columns: 1fr;
  }
}

/* ===== 微信视频号：禁止第三方网页 iframe 嵌入，改为封面引导卡 ===== */
.wechat-video-card {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0a1628 center / cover no-repeat;
  border-radius: var(--radius);
  overflow: hidden;
}
.wechat-video-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(6, 16, 32, 0.93) 0%, rgba(10, 22, 40, 0.82) 55%, rgba(198, 40, 40, 0.35) 100%);
}
.wvc-body {
  position: relative;
  z-index: 2;
  padding: 32px 34px;
  text-align: center;
  color: #fff;
  max-width: 640px;
}
.wvc-badge {
  display: inline-block;
  font-size: .72rem;
  letter-spacing: 1px;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(198, 40, 40, .92);
  margin-bottom: 12px;
}
.wvc-title {
  font-size: 1.25rem;
  margin: 0 0 10px;
  color: #fff;
}
.wvc-note {
  font-size: .88rem;
  line-height: 1.75;
  color: rgba(226, 232, 240, .88);
  margin: 0 0 18px;
}
.wvc-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.wvc-qr {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: .76rem;
  color: rgba(226, 232, 240, .8);
}
.wvc-qr img {
  width: 108px;
  height: 108px;
  background: #fff;
  border-radius: 8px;
  padding: 5px;
}

/* 弹层内的视频号引导卡 */
.video-lightbox .lb-inner.lb-wechat {
  width: min(560px, 100%);
  line-height: 1.6;
}
.lb-wechat-card {
  background: #0d1b32;
  border-radius: 12px;
  padding: 34px 28px;
  text-align: center;
  color: #fff;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .5);
}
.lb-wechat-card h4 {
  font-size: 1.1rem;
  margin: 8px 0 10px;
  color: #fff;
}
.lb-wechat-card p {
  font-size: .88rem;
  color: rgba(226, 232, 240, .85);
  margin: 0 0 18px;
  line-height: 1.7;
}
.lb-wechat-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}
.lb-wechat-qr img {
  width: 140px;
  height: 140px;
  background: #fff;
  border-radius: 10px;
  padding: 6px;
  margin-top: 16px;
}
.lb-wechat-qr span {
  display: block;
  font-size: .78rem;
  color: rgba(226, 232, 240, .8);
  margin-top: 6px;
}

@media (max-width: 768px) {
  .wvc-body { padding: 22px 18px; }
  .wvc-title { font-size: 1.05rem; }
  .wechat-video-card { min-height: 220px; }
}

/* ===== 关于我们：专家顾问 + 工程团队 ===== */
.expert-list {
  display: flex;
  flex-direction: column;
  gap: 26px;
  margin-top: 34px;
}
.expert-card {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 26px;
  align-items: start;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: var(--radius);
  padding: 24px;
}
.expert-card > img {
  width: 100%;
  max-width: 170px;
  border-radius: 10px;
  object-fit: cover;
  aspect-ratio: 3 / 4;
}
.expert-body h3 {
  color: #fff;
  font-size: 1.2rem;
  margin: 0 0 12px;
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.expert-body h3 span {
  font-size: .85rem;
  font-weight: 500;
  color: #f87171;
}
.expert-credentials {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.expert-credentials li {
  position: relative;
  padding-left: 18px;
  color: rgba(226, 232, 240, 0.92);
  font-size: .9rem;
  line-height: 1.65;
}
.expert-credentials li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: #f87171;
}
.expert-body p {
  color: rgba(203, 213, 225, 0.85);
  font-size: .9rem;
  line-height: 1.8;
  margin: 0;
}
.team-subtitle {
  color: #fff;
  text-align: center;
  margin: 52px 0 6px;
  font-size: 1.5rem;
}
.cert-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 26px;
}
/* 团队卡：整体左对齐（头像与文字统一靠左，更整齐） */
.cert-grid-3 .cert-card {
  text-align: left;
}
.cert-grid-3 .cert-card img {
  width: 150px;
  height: 150px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: top;
  border-radius: 10px;
  display: block;
  margin: 0 0 10px;
}
.cert-bio {
  color: rgba(203, 213, 225, 0.8);
  font-size: .84rem;
  line-height: 1.7;
  margin: 8px 0 0;
}
@media (max-width: 768px) {
  .expert-card { grid-template-columns: 1fr; }
  .expert-card > img { max-width: 200px; margin: 0 auto; }
  .cert-grid-3 { grid-template-columns: 1fr; }
}

/* ---------- 图片点击放大（资质证书等） ---------- */
.img-lightbox {
  position: fixed; inset: 0; z-index: 3000; background: rgba(2, 6, 23, .88);
  display: flex; align-items: center; justify-content: center; padding: 24px;
}
.img-lightbox .ilb-inner { position: relative; max-width: min(1100px, 94vw); text-align: center; }
.img-lightbox img {
  max-width: 100%; max-height: 82vh; width: auto; height: auto;
  object-fit: contain; background: #fff; border-radius: 10px; box-shadow: 0 24px 60px rgba(0,0,0,.5);
}
.img-lightbox .ilb-cap { color: rgba(255,255,255,.9); font-size: 13px; margin-top: 12px; }
.img-lightbox .ilb-close {
  position: absolute; top: -14px; right: -14px; width: 38px; height: 38px; border: 0; border-radius: 50%;
  background: #fff; color: #1f2937; font-size: 22px; line-height: 1; cursor: pointer;
  box-shadow: 0 4px 14px rgba(0,0,0,.35);
}
@media (max-width: 640px) {
  .img-lightbox { padding: 14px; }
  .img-lightbox .ilb-close { top: -8px; right: -6px; width: 34px; height: 34px; }
}

/* ---------- 图片点击放大（资质证书等） ---------- */
.img-lightbox {
  position: fixed; inset: 0; z-index: 3000; background: rgba(2, 6, 23, .88);
  display: flex; align-items: center; justify-content: center; padding: 24px;
}
.img-lightbox .ilb-inner { position: relative; max-width: min(1100px, 94vw); text-align: center; }
.img-lightbox img {
  max-width: 100%; max-height: 82vh; width: auto; height: auto;
  object-fit: contain; background: #fff; border-radius: 10px; box-shadow: 0 24px 60px rgba(0,0,0,.5);
}
.img-lightbox .ilb-cap { color: rgba(255,255,255,.9); font-size: 13px; margin-top: 12px; }
.img-lightbox .ilb-close {
  position: absolute; top: -14px; right: -14px; width: 38px; height: 38px; border: 0; border-radius: 50%;
  background: #fff; color: #1f2937; font-size: 22px; line-height: 1; cursor: pointer;
  box-shadow: 0 4px 14px rgba(0,0,0,.35);
}
@media (max-width: 640px) {
  .img-lightbox { padding: 14px; }
  .img-lightbox .ilb-close { top: -8px; right: -6px; width: 34px; height: 34px; }
}

/* ---------- 服务范围页：分类表、标签云、防腐防护网格 ---------- */
.service-table-wrap {
  overflow-x: auto;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(2, 6, 23, 0.06);
  background: var(--white);
}
.service-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 720px;
}
.service-table th,
.service-table td {
  padding: 16px 18px;
  text-align: left;
  border-bottom: 1px solid rgba(148, 163, 184, 0.14);
  vertical-align: top;
  line-height: 1.7;
}
.service-table thead th {
  background: var(--navy);
  color: var(--white);
  font-weight: 600;
  white-space: nowrap;
}
.service-table tbody tr:hover {
  background: rgba(198, 40, 40, 0.03);
}
.service-table td:first-child {
  width: 120px;
  white-space: nowrap;
  color: var(--red);
  font-weight: 600;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.tag-cloud .tag {
  display: inline-block;
  padding: 7px 14px;
  background: var(--white);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--slate);
  box-shadow: 0 2px 8px rgba(2, 6, 23, 0.04);
}
.tag-cloud .tag:hover {
  border-color: var(--red);
  color: var(--red);
}

.protection-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.protection-card {
  background: var(--white);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 4px 20px rgba(2, 6, 23, 0.05);
  border-top: 3px solid var(--red);
}
.protection-card h3 {
  font-size: 1.05rem;
  color: var(--navy);
  margin-bottom: 14px;
}
.protection-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.protection-card li {
  position: relative;
  padding-left: 16px;
  font-size: 0.88rem;
  color: var(--slate);
  line-height: 1.6;
}
.protection-card li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--red);
  font-weight: 700;
}

@media (max-width: 1024px) {
  .protection-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .protection-grid { grid-template-columns: 1fr; }
  .service-table th,
  .service-table td { padding: 12px 14px; font-size: 0.85rem; }
}

/* ============================================================
   常见问题（FAQ）分组折叠
   ============================================================ */
.faq-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--line, #e6eaf2);
  border-radius: 10px;
}
.faq-nav a {
  display: inline-block;
  padding: 6px 12px;
  font-size: 0.84rem;
  color: var(--slate-600, #334155);
  background: var(--light, #f4f6fb);
  border-radius: 999px;
  text-decoration: none;
  transition: background .15s, color .15s;
}
.faq-nav a:hover {
  background: var(--red, #C62828);
  color: #fff;
}
.faq-group {
  margin-bottom: 14px;
  background: #fff;
  border: 1px solid var(--line, #e6eaf2);
  border-radius: 10px;
  overflow: hidden;
}
.faq-group-title {
  padding: 14px 18px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy, #0A1628);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.faq-group-title::-webkit-details-marker { display: none; }
.faq-count {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gray, #64748B);
  background: var(--light, #f4f6fb);
  padding: 2px 9px;
  border-radius: 999px;
}
.faq-item {
  padding: 0 18px 18px;
  border-top: 1px solid var(--line, #e6eaf2);
}
.faq-item:first-of-type { border-top: none; }
.faq-q {
  margin: 14px 0 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--red-700, #B71C1C);
  line-height: 1.6;
}
.faq-a {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--slate-600, #334155);
}
.icp-no {
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--gray, #64748B);
}
.icp-no a { color: var(--gray, #64748B); text-decoration: none; }
.icp-no a:hover { color: var(--red, #C62828); text-decoration: underline; }