/* ========================================
   上海冷科实业 - 全自动获客官网 样式系统
   主题色：科技蓝 #0066CC + 工业灰 #333333
   ======================================== */

/* === Skip Link (a11y + SEO) === */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--primary);
  color: #fff;
  padding: 10px 20px;
  z-index: 10000;
  border-radius: 0 0 6px 6px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: top .2s;
}
.skip-link:focus {
  top: 0;
}

/* === CSS Variables === */
:root {
  --primary: #0066CC;
  --primary-dark: #004D99;
  --primary-light: #3388DD;
  --primary-bg: #E8F3FF;
  --accent: #FF6600;
  --accent-hover: #E55A00;
  --dark: #222222;
  --gray-dark: #333333;
  --gray: #666666;
  --gray-light: #999999;
  --gray-border: #DDDDDD;
  --gray-bg: #F5F7FA;
  --white: #FFFFFF;
  --black: #000000;
  --success: #28A745;
  --danger: #DC3545;
  --warning: #FFC107;

  --font-base: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  --font-title: "Microsoft YaHei", "PingFang SC", "SimHei", sans-serif;
  --font-en: "Segoe UI", "Helvetica Neue", Arial, sans-serif;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow: 0 2px 12px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --radius: 6px;
  --radius-lg: 12px;
  --transition: all 0.3s ease;

  --header-h: 72px;
  --max-width: 1200px;
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-base);
  color: var(--gray-dark);
  line-height: 1.7;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}
a:hover { color: var(--primary-dark); }

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

ul, ol { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--white);
}
.btn-accent {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn-accent:hover {
  background: var(--accent-hover);
  color: var(--white);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
}
.btn-white {
  background: var(--white);
  color: var(--primary);
  border-color: var(--white);
}
.btn-white:hover {
  background: var(--primary-bg);
  color: var(--primary-dark);
}
.btn-lg { padding: 14px 36px; font-size: 17px; border-radius: var(--radius-lg); }
.btn-sm { padding: 6px 16px; font-size: 13px; }

/* === Header === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: var(--transition);
}
.header.scrolled { box-shadow: var(--shadow); }
.header-inner {
  max-width: var(--max-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  min-width: 0;
}
.header-logo .logo-icon { height: 52px; width: auto; flex-shrink: 0; }
.header-logo .logo-calligraphy { height: 50px; width: auto; flex-shrink: 0; }
.header-logo .logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  font-family: var(--font-title);
  white-space: nowrap;
  letter-spacing: 0.5px;
  line-height: 1.2;
}
.header-contact {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.header-phone {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--primary);
  font-weight: 700;
  font-size: 15px;
  white-space: nowrap;
}
.header-phone .icon { font-size: 18px; }

/* === Navigation === */
.nav { display: flex; align-items: center; gap: 2px; flex: 1; justify-content: center; }
.nav a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--gray-dark);
  border-radius: var(--radius);
  transition: var(--transition);
  white-space: nowrap;
}
.nav a:hover, .nav a.active {
  color: var(--primary);
  background: var(--primary-bg);
}
.nav .lang-switch {
  margin-left: 8px;
  padding: 6px 12px;
  background: var(--gray-bg);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray);
  cursor: pointer;
  border: none;
}
.nav .lang-switch:hover { background: var(--primary-bg); color: var(--primary); }
.nav .lang-switch.active { background: var(--primary); color: var(--white); }

/* Mobile Menu */
.mobile-toggle {
  display: none;
  width: 36px;
  height: 36px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
}
.mobile-toggle span {
  display: block;
  height: 2px;
  background: var(--gray-dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* === Page Hero === */
.page-hero {
  padding: 80px 0 40px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  color: var(--white);
  text-align: center;
}
.page-hero h1 { font-size: 36px; font-weight: 700; margin-bottom: 12px; }
.page-hero p { font-size: 16px; opacity: 0.9; max-width: 700px; margin: 0 auto; }

/* === Home Banner Slider (主页主图轮播，嵌套在 home-hero 内作为背景) === */
.home-banner-slider {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: linear-gradient(135deg, #001a33 0%, #0066CC 100%);
  z-index: 0;
}
.home-banner-slides {
  position: relative;
  width: 100%;
  height: 100%;
}
.home-banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .8s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.home-banner-slide.active {
  opacity: 1;
  z-index: 1;
  pointer-events: auto;
}
.home-banner-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
}
.home-banner-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 2;
  padding: 6px 12px;
  background: rgba(0, 0, 0, 0.15);
  border-radius: 999px;
  backdrop-filter: blur(6px);
}
.home-banner-dots .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all .3s;
  border: 2px solid rgba(255, 255, 255, 0.8);
}
.home-banner-dots .dot:hover {
  background: rgba(255, 255, 255, 0.85);
}
.home-banner-dots .dot.active {
  background: #FF6600;
  border-color: #FF6600;
  transform: scale(1.2);
}
.home-banner-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 26px;
  cursor: pointer;
  z-index: 2;
  transition: background .3s, transform .2s;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.home-banner-arrow:hover {
  background: rgba(0, 0, 0, 0.7);
  transform: translateY(-50%) scale(1.08);
}
.home-banner-arrow.prev { left: 24px; }
.home-banner-arrow.next { right: 24px; }

/* === Home Hero === */
.home-hero {
  position: relative;
  margin-top: var(--header-h);
  height: 600px;
  min-height: 520px;
  background: linear-gradient(135deg, #001a33 0%, #003366 40%, #0066CC 100%);
  overflow: hidden;
}
.form-group { margin-bottom: 14px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-dark);
  margin-bottom: 4px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--gray-border);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: var(--font-base);
  color: var(--gray-dark);
  transition: var(--transition);
  background: var(--white);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,102,204,0.1);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-submit {
  width: 100%;
  padding: 14px;
  font-size: 17px;
  margin-top: 8px;
}

/* === Section Styling === */
.section {
  padding: 80px 0;
}
.section-gray { background: var(--gray-bg); }
.section-title {
  text-align: center;
  margin-bottom: 50px;
}
.section-title h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}
.section-title p {
  font-size: 16px;
  color: var(--gray);
  max-width: 600px;
  margin: 0 auto;
}
.section-title .sub-line {
  display: inline-block;
  width: 50px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  margin-top: 12px;
}

/* === Service Cards === */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid transparent;
  cursor: pointer;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.service-card .icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--primary-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: var(--primary);
}
.service-card h3 {
  font-size: 20px;
  color: var(--dark);
  margin-bottom: 10px;
}
.service-card p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.6;
}

/* === Advantage Cards === */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.advantage-card {
  text-align: center;
  padding: 28px 20px;
}
.advantage-card .icon {
  font-size: 42px;
  margin-bottom: 14px;
}
.advantage-card h3 {
  font-size: 17px;
  color: var(--dark);
  margin-bottom: 6px;
}
.advantage-card p {
  font-size: 13px;
  color: var(--gray);
}

/* === Case Grid === */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.case-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.case-card-img {
  height: 220px;
  background: var(--gray-bg);
  position: relative;
  overflow: hidden;
}
.case-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.case-card-body {
  padding: 20px;
}
.case-card-body h3 {
  font-size: 17px;
  color: var(--dark);
  margin-bottom: 8px;
  line-height: 1.4;
}
.case-card-body p {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.6;
}
.case-card-body .tag {
  display: inline-block;
  background: var(--primary-bg);
  color: var(--primary);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 10px;
}

/* === Partner Carousel === */
.partner-carousel {
  overflow: hidden;
  padding: 20px 0;
}
.partner-track {
  display: flex;
  gap: 40px;
  animation: scroll 30s linear infinite;
}
.partner-track img {
  height: 50px;
  width: auto;
  opacity: 1;
  transition: var(--transition);
}
.partner-track img:hover {
  transform: scale(1.08);
}
@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* === CTA Section === */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: var(--white);
  text-align: center;
  padding: 60px 0;
}
.cta-section h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
}
.cta-section p {
  font-size: 16px;
  opacity: 0.9;
  margin-bottom: 28px;
}
.cta-section .btn-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* === Footer === */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 50px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer h4 {
  color: var(--white);
  font-size: 17px;
  margin-bottom: 18px;
}
.footer p, .footer a {
  font-size: 14px;
  line-height: 2;
  color: rgba(255,255,255,0.6);
}
.footer a:hover { color: var(--white); }
.footer-bottom {
  margin-top: 40px;
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* === Fixed Contact Bar === */
.fixed-contact {
  position: fixed;
  right: 20px;
  bottom: 100px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.fixed-contact a {
  width: 50px;
  height: 50px;
  background: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  color: var(--primary);
  font-size: 22px;
  transition: var(--transition);
  position: relative;
}
.fixed-contact a:hover {
  background: var(--primary);
  color: var(--white);
  transform: scale(1.1);
}
.fixed-contact a .tooltip {
  position: absolute;
  right: 60px;
  background: var(--dark);
  color: var(--white);
  padding: 6px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.fixed-contact a:hover .tooltip { opacity: 1; }

/* === Page Content === */
.page-content {
  padding: 40px 0 80px;
  min-height: 400px;
}
.page-content .container { max-width: var(--max-width); }

/* === Quote Page === */
.quote-layout {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 40px;
  align-items: start;
}
.quote-form-wrap {
  background: var(--white);
  padding: 36px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.quote-section-title {
  grid-column: 1 / -1;
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  padding: 10px 0 6px;
  margin-top: 8px;
  border-bottom: 2px solid #e8f3ff;
  user-select: none;
}
.quote-section-title.collapsed::after {
  content: " ▼";
  font-size: 11px;
  color: #999;
}
.quote-section-title::after {
  content: " ▲";
  font-size: 11px;
  color: #999;
}
.quote-form-wrap select, .quote-form-wrap input[type="number"],
.quote-form-wrap input[type="text"], .quote-form-wrap input[type="tel"] {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  box-sizing: border-box;
  transition: border-color 0.2s;
}
.quote-form-wrap select:focus, .quote-form-wrap input:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(0,102,204,0.1);
}
.quote-form-tip {
  margin-top: 12px;
  font-size: 12px;
  color: #999;
  text-align: center;
}


.quote-form-wrap h2 {
  font-size: 24px;
  margin-bottom: 24px;
  color: var(--dark);
}
.quote-sidebar {
  background: var(--primary-bg);
  padding: 28px;
  border-radius: var(--radius-lg);
  text-align: center;
}
.quote-sidebar h3 { font-size: 18px; color: var(--primary); margin-bottom: 16px; }
.quote-sidebar .qr-code {
  width: 160px;
  height: 160px;
  background: var(--white);
  margin: 0 auto 16px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--gray);
  border: 2px dashed var(--gray-border);
}

/* === Equipment Grid === */
.equipment-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.equipment-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  text-align: center;
}
.equipment-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}
.equipment-card-img {
  height: 180px;
  background: var(--gray-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.equipment-card-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 10px;
}
.equipment-card-body {
  padding: 16px;
}
.equipment-card-body h4 {
  font-size: 14px;
  color: var(--dark);
  line-height: 1.4;
}

/* === News List === */
.news-list { max-width: 800px; margin: 0 auto; }
.news-item {
  display: flex;
  gap: 20px;
  padding: 20px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
  transition: var(--transition);
}
.news-item:hover { box-shadow: var(--shadow); }
.news-item-img {
  width: 200px;
  height: 140px;
  border-radius: var(--radius);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--gray-bg);
}
.news-item-img img { width: 100%; height: 100%; object-fit: cover; }
.news-item-body h3 {
  font-size: 18px;
  color: var(--dark);
  margin-bottom: 8px;
}
.news-item-body p {
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 10px;
  line-height: 1.6;
}
.news-item-body .meta {
  font-size: 13px;
  color: var(--gray-light);
}

/* === About Page === */
.about-intro { line-height: 2; font-size: 15px; color: var(--gray-dark); margin-bottom: 40px; }
.about-intro p { margin-bottom: 16px; text-indent: 2em; }
.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 40px 0;
}
.stat-card {
  text-align: center;
  padding: 30px 20px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.stat-card .num {
  font-size: 42px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}
.stat-card .label {
  font-size: 14px;
  color: var(--gray);
  margin-top: 8px;
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.team-card {
  text-align: center;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.team-card-img {
  height: 250px;
  background: var(--gray-bg);
  overflow: hidden;
  position: relative;
}
.team-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* === Contact Page === */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.contact-info h2 {
  font-size: 28px;
  margin-bottom: 24px;
  color: var(--dark);
}
.contact-info-item {
  display: flex;
  gap: 14px;
  margin-bottom: 20px;
  align-items: flex-start;
}
.contact-info-item .icon {
  width: 42px;
  height: 42px;
  background: var(--primary-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary);
  flex-shrink: 0;
}
.contact-info-item h4 { font-size: 15px; color: var(--dark); margin-bottom: 2px; }
.contact-info-item p { font-size: 14px; color: var(--gray); }
.contact-map {
  width: 100%;
  height: 300px;
  background: var(--gray-bg);
  border-radius: var(--radius-lg);
  margin-top: 30px;
  overflow: hidden;
}

/* === Qualification Cards === */
.qual-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.qual-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  text-align: center;
}
.qual-card-img {
  height: 250px;
  background: var(--gray-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.qual-card-img img {
  max-height: 100%;
  width: auto;
}
.qual-card-body {
  padding: 16px;
}
.qual-card-body h4 {
  font-size: 15px;
  color: var(--dark);
}

/* === Admin Panel Styles === */
.admin-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}
.admin-sidebar {
  background: var(--dark);
  color: var(--white);
  padding: 20px;
}
.admin-sidebar h3 {
  font-size: 18px;
  padding: 10px 0 24px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.admin-sidebar nav a {
  display: block;
  padding: 12px 16px;
  color: rgba(255,255,255,0.7);
  border-radius: var(--radius);
  margin-bottom: 4px;
  font-size: 14px;
}
.admin-sidebar nav a:hover, .admin-sidebar nav a.active {
  background: var(--primary);
  color: var(--white);
}
.admin-main {
  padding: 30px;
  background: var(--gray-bg);
}
.admin-card {
  background: var(--white);
  padding: 24px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}
.admin-card h3 { font-size: 18px; margin-bottom: 16px; color: var(--dark); }
.admin-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 30px;
}
.admin-stat {
  background: var(--white);
  padding: 20px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.admin-stat .num { font-size: 32px; font-weight: 700; color: var(--primary); }
.admin-stat .label { font-size: 13px; color: var(--gray); margin-top: 4px; }

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.admin-table th, .admin-table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--gray-border);
}
.admin-table th {
  background: var(--gray-bg);
  font-weight: 600;
  color: var(--gray-dark);
}
.admin-table tr:hover td { background: var(--primary-bg); }

/* === Notification === */
.notification {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 2000;
  background: var(--white);
  padding: 16px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--success);
  transform: translateX(400px);
  transition: transform 0.4s ease;
}
.notification.show { transform: translateX(0); }
.notification.success { border-color: var(--success); }
.notification.error { border-color: var(--danger); }

/* === Back to Top === */
.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 40px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  opacity: 0;
  transition: var(--transition);
  border: none;
  z-index: 999;
}
.back-to-top.show { opacity: 1; }

/* === Dialog / Modal === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal {
  background: var(--white);
  padding: 36px;
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.modal h3 { font-size: 20px; margin-bottom: 16px; }
.modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  font-size: 24px;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--gray);
}

/* === Watermark === */
.img-watermark {
  position: relative;
}
.img-watermark::after {
  content: '冷科制冷';
  position: absolute;
  bottom: 8px;
  right: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 12px;
  font-weight: bold;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* === Price Table === */
.price-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.price-table th {
  background: var(--primary);
  color: var(--white);
  padding: 14px;
  font-size: 15px;
  text-align: center;
}
.price-table td {
  padding: 12px 14px;
  text-align: center;
  border-bottom: 1px solid var(--gray-border);
  font-size: 14px;
}
.price-table tr:nth-child(even) td { background: var(--gray-bg); }

/* === Tabs === */
.tabs { display: flex; gap: 4px; margin-bottom: 28px; flex-wrap: wrap; }
.tab-btn {
  padding: 10px 20px;
  background: var(--gray-bg);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-dark);
  transition: var(--transition);
}
.tab-btn:hover { background: var(--primary-bg); color: var(--primary); }
.tab-btn.active { background: var(--primary); color: var(--white); }
.tab-content { display: none; }
.tab-content.active { display: block; }


/* === Quote Page V2 === */
.quote-page-header {
  background: var(--primary);
  color: var(--white);
  padding: 48px 0 40px;
  text-align: center;
}
.quote-page-header h1 { font-size: 32px; margin-bottom: 10px; }
.quote-page-header p { font-size: 15px; opacity: 0.9; margin: 0; }

.quote-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 36px;
  max-width: 720px;
  margin: -30px auto 0;
  position: relative;
}
.quote-card h2 { font-size: 22px; margin-bottom: 24px; color: var(--dark); }

.quote-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.quote-form .form-group { margin-bottom: 16px; }
.quote-form .form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 6px;
}
.quote-form .form-group input {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid #ddd;
  border-radius: var(--radius);
  font-size: 14px;
  transition: var(--transition);
  box-sizing: border-box;
}
.quote-form .form-group input:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(0,102,204,0.1);
}

.btn-quote-submit {
  width: 100%;
  padding: 14px;
  background: #ff6600;
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 4px;
}
.btn-quote-submit:hover { background: #e55a00; transform: translateY(-1px); }

.quote-form-tip {
  margin-top: 12px;
  font-size: 12px;
  color: #999;
  text-align: center;
}

/* Quote Result Panel */

.quote-result-sub { color:#666;font-size:14px;margin-bottom:20px; }
.quote-warnings { background:#fff8e1;border:1px solid #ffc107;border-radius:8px;padding:12px 16px;margin-bottom:20px; }
.quote-warn-item { font-size:13px;color:#795548;padding:4px 0; }
.quote-config-title { margin:24px 0 12px;font-size:16px;color:#333; }
.quote-result-panel {
  animation: fadeInUp 0.5s ease;
  margin-top: 8px;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.quote-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.quote-sum-item {
  background: #f8fafc;
  border-radius: var(--radius);
  padding: 14px 12px;
  text-align: center;
  border-left: 3px solid var(--primary);
}
.quote-sum-item .sum-label {
  display: block;
  font-size: 12px;
  color: #888;
  margin-bottom: 4px;
}
.quote-sum-item .sum-val {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--dark);
}
.quote-sum-item.total {
  grid-column: span 3;
  background: #fff3e0;
  border-left-color: #ff6600;
}
.quote-sum-item.total .sum-val.price {
  font-size: 22px;
  color: #e65100;
}

.quote-diagrams {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.quote-diag-box {
  background: #fff;
  border: 1px solid #e8e8e8;
  border-radius: var(--radius);
  padding: 12px;
  text-align: center;
}
.quote-diag-box h4 {
  font-size: 13px;
  color: #666;
  margin-bottom: 8px;
  font-weight: 500;
}
.quote-diag-box canvas {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  background: #f8fafc;
}

.quote-config-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-bottom: 12px;
}
.quote-config-table th {
  background: var(--primary);
  color: #fff;
  padding: 10px 8px;
  text-align: left;
  font-weight: 500;
}
.quote-config-table td {
  padding: 9px 8px;
  border-bottom: 1px solid #eee;
  color: #444;
}
.quote-config-table tr:nth-child(even) td { background: #fafbfc; }

.quote-note {
  font-size: 12px;
  color: #999;
  margin: 12px 0 20px;
  padding: 10px;
  background: #fafbfc;
  border-radius: var(--radius);
  border-left: 3px solid #ccc;
}

.quote-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

@media (max-width: 768px) {
  .quote-form-grid { grid-template-columns: 1fr; }
  .quote-summary { grid-template-columns: 1fr 1fr; }
  .quote-sum-item.total { grid-column: span 2; }
  .quote-diagrams { grid-template-columns: 1fr; }
  .quote-card { padding: 20px; margin-top: -20px; }
  .quote-page-header h1 { font-size: 24px; }
}

/* === Responsive === */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .equipment-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .home-hero { height: auto; min-height: auto; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .contact-layout { grid-template-columns: 1fr; }
  .quote-layout { grid-template-columns: 1fr; }
  .qual-grid { grid-template-columns: repeat(2, 1fr); }
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
}

@media (max-width: 768px) {
  .nav { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-h);
    left: 0;
    width: 100%;
    background: var(--white);
    padding: 16px;
    box-shadow: var(--shadow);
    gap: 8px;
  }
  .mobile-toggle { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: 1fr 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .equipment-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 50px 0; }
  .section-title h2 { font-size: 26px; }
  .home-hero { min-height: auto; padding: 0; }
  .home-banner-arrow { width: 36px; height: 36px; font-size: 18px; }
  .home-banner-arrow.prev { left: 10px; }
  .home-banner-arrow.next { right: 10px; }
  .home-banner-dots { bottom: 12px; gap: 7px; }
  .home-banner-dots .dot { width: 9px; height: 9px; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .qual-grid { grid-template-columns: 1fr; }
  .news-item { flex-direction: column; }
  .news-item-img { width: 100%; height: 180px; }
  .tab-btn { padding: 8px 14px; font-size: 13px; }
  .admin-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .header-contact { display: none; }
  .header-logo .logo-icon { height: 34px; }
  .header-logo .logo-calligraphy { height: 28px; }
  .home-hero { min-height: auto; padding: 0; }
  .home-banner-arrow { display: none; }
  .section-title h2 { font-size: 22px; }
  .advantages-grid { grid-template-columns: 1fr; }
  .equipment-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}

/* ====== Case Detail Modal ====== */
.case-modal {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,.6);
  display: flex; align-items: center; justify-content: center;
  padding: 20px; animation: modalFade .25s ease;
}
@keyframes modalFade { from { opacity: 0; } to { opacity: 1; } }

.case-modal-box {
  background: var(--white); border-radius: var(--radius-lg);
  max-width: 920px; width: 100%; max-height: 90vh; overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
  animation: modalSlide .3s ease;
  position: relative;
}
@keyframes modalSlide { from { transform: translateY(30px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.case-modal-close {
  position: absolute; top: 12px; right: 12px; z-index: 10;
  width: 36px; height: 36px; border-radius: 50%; border: none;
  background: rgba(0,0,0,.5); color: #fff; font-size: 22px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.case-modal-close:hover { background: rgba(0,0,0,.7); transform: rotate(90deg); }

.case-modal-body {
  display: grid; grid-template-columns: 1.3fr 1fr;
  max-height: 90vh; overflow: hidden;
}

/* Gallery */
.case-modal-gallery {
  background: #f5f5f5; display: flex; flex-direction: column;
}
.gallery-main {
  flex: 1; position: relative; min-height: 320px;
  display: flex; align-items: center; justify-content: center;
  background: #e8e8e8;
}
.gallery-main img {
  width: 100%; height: 100%; object-fit: contain;
  max-height: 520px;
}
.gallery-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: 50%; border: none;
  background: rgba(0,0,0,.4); color: #fff; font-size: 28px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: var(--transition); opacity: 0;
}
.gallery-main:hover .gallery-arrow { opacity: 1; }
.gallery-arrow:hover { background: rgba(0,0,0,.7); }
.gallery-prev { left: 12px; }
.gallery-next { right: 12px; }
.gallery-counter {
  position: absolute; bottom: 12px; right: 12px;
  background: rgba(0,0,0,.5); color: #fff;
  padding: 4px 12px; border-radius: 20px; font-size: 13px;
}
.gallery-thumbs {
  display: flex; gap: 6px; padding: 10px;
  overflow-x: auto; background: #fff;
  border-top: 1px solid var(--gray-border);
}
.gallery-thumbs img {
  width: 64px; height: 64px; object-fit: cover;
  border-radius: 6px; cursor: pointer; border: 2px solid transparent;
  opacity: .6; transition: var(--transition); flex-shrink: 0;
}
.gallery-thumbs img.active { border-color: var(--primary); opacity: 1; }
.gallery-thumbs img:hover { opacity: 1; }

.gallery-noimg {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center; font-size: 80px; min-height: 320px;
  color: var(--primary);
}
.gallery-noimg span { font-size: 15px; color: #999; margin-top: 10px; }

/* Info Panel */
.case-modal-info {
  padding: 32px; overflow-y: auto; max-height: 90vh;
}
.case-modal-info .tag { margin-bottom: 12px; }
.case-modal-info h2 {
  font-size: 22px; font-weight: 700; color: var(--dark);
  margin-bottom: 8px; line-height: 1.4;
}
.case-modal-loc {
  color: var(--gray-dark); font-size: 14px; margin-bottom: 16px;
}
.case-modal-desc {
  color: var(--gray-dark); font-size: 14px; line-height: 1.8;
  padding-top: 16px; border-top: 1px solid var(--gray-border);
}

/* Responsive */
@media (max-width: 768px) {
  .case-modal { padding: 0; align-items: flex-end; }
  .case-modal-box { max-height: 95vh; border-radius: 16px 16px 0 0; }
  .case-modal-body { grid-template-columns: 1fr; }
  .gallery-main { min-height: 240px; }
  .gallery-main img { max-height: 360px; }
  .case-modal-info { padding: 20px; max-height: none; }
  .case-modal-info h2 { font-size: 18px; }
  .gallery-arrow { opacity: 1; width: 36px; height: 36px; font-size: 22px; }
}

/* ====== Case Detail Page ====== */
.case-detail-page {
  padding: 120px 0 60px;
  min-height: 80vh;
}
.case-detail-breadcrumb {
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--gray);
}
.case-detail-breadcrumb a {
  color: var(--primary);
  text-decoration: none;
}
.case-detail-breadcrumb a:hover { text-decoration: underline; }

.case-detail-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: start;
}

/* Smart Image Gallery */
.case-detail-gallery {
  background: var(--gray-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.gallery-main-view {
  position: relative;
  background: #e8e8e8;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.gallery-main-view img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-height: 560px;
  display: block;
}
.gallery-nav-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: 50%; border: none;
  background: rgba(0,0,0,.4); color: #fff; font-size: 26px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: var(--transition); z-index: 2;
}
.gallery-nav-arrow:hover { background: rgba(0,0,0,.7); }
.gallery-nav-prev { left: 12px; }
.gallery-nav-next { right: 12px; }
.gallery-nav-counter {
  position: absolute; bottom: 12px; right: 12px;
  background: rgba(0,0,0,.5); color: #fff;
  padding: 4px 14px; border-radius: 20px; font-size: 13px; z-index: 2;
}

/* Smart grid for 1-8 images */
.gallery-smart-grid {
  display: grid;
  gap: 4px;
  grid-template-columns: repeat(2, 1fr);
}
.gallery-smart-grid .grid-img {
  width: 100%; height: 100%; object-fit: cover;
  display: block; cursor: pointer;
  transition: opacity .2s;
}
.gallery-smart-grid .grid-img:hover { opacity: .85; }
.gallery-smart-grid .grid-img.active { outline: 3px solid var(--primary); outline-offset: -3px; }

/* Layout rules for different image counts */
.gallery-smart-grid.count-1 { grid-template-columns: 1fr; }
.gallery-smart-grid.count-1 .grid-img { aspect-ratio: 16/10; }

.gallery-smart-grid.count-2 { grid-template-columns: repeat(2, 1fr); }
.gallery-smart-grid.count-2 .grid-img { aspect-ratio: 4/3; }

.gallery-smart-grid.count-3 {
  grid-template-columns: 1.5fr 1fr;
  grid-template-rows: repeat(2, 1fr);
}
.gallery-smart-grid.count-3 .grid-img:first-child { grid-row: 1 / -1; }
.gallery-smart-grid.count-3 .grid-img { aspect-ratio: auto; }

.gallery-smart-grid.count-4 { grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(2, 1fr); }
.gallery-smart-grid.count-4 .grid-img { aspect-ratio: 4/3; }

.gallery-smart-grid.count-5 {
  grid-template-columns: 1.5fr 1fr 1fr;
  grid-template-rows: repeat(2, 1fr);
}
.gallery-smart-grid.count-5 .grid-img:first-child { grid-row: 1 / -1; grid-column: 1 / 2; }
.gallery-smart-grid.count-5 .grid-img { aspect-ratio: auto; }

.gallery-smart-grid.count-6 { grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(2, 1fr); }
.gallery-smart-grid.count-6 .grid-img { aspect-ratio: 4/3; }

.gallery-smart-grid.count-7 {
  grid-template-columns: 1.5fr 1fr 1fr;
  grid-template-rows: repeat(3, 1fr);
}
.gallery-smart-grid.count-7 .grid-img:first-child { grid-row: 1 / -1; grid-column: 1 / 2; }
.gallery-smart-grid.count-7 .grid-img { aspect-ratio: auto; }

.gallery-smart-grid.count-8 { grid-template-columns: repeat(4, 1fr); grid-template-rows: repeat(2, 1fr); }
.gallery-smart-grid.count-8 .grid-img { aspect-ratio: 4/3; }

/* Thumbnail strip below main view */
.gallery-thumb-strip {
  display: flex; gap: 6px; padding: 10px;
  overflow-x: auto; background: #fff;
  border-top: 1px solid var(--gray-border);
}
.gallery-thumb-strip img {
  width: 72px; height: 72px; object-fit: cover;
  border-radius: 6px; cursor: pointer; border: 2px solid transparent;
  opacity: .6; transition: var(--transition); flex-shrink: 0;
}
.gallery-thumb-strip img.active { border-color: var(--primary); opacity: 1; }
.gallery-thumb-strip img:hover { opacity: 1; }

/* Info panel */
.case-detail-info {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 100px;
}
.case-detail-info .tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-bg);
  color: var(--primary);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
}
.case-detail-info h1 {
  font-size: 26px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
  line-height: 1.35;
}
.case-detail-loc {
  color: var(--gray);
  font-size: 15px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.case-detail-desc {
  color: var(--gray-dark);
  font-size: 15px;
  line-height: 1.85;
  padding-top: 18px;
  border-top: 1px solid var(--gray-border);
  margin-bottom: 24px;
}
.case-detail-desc p { margin-bottom: 12px; }
.case-detail-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.case-detail-actions .btn {
  flex: 1;
  min-width: 140px;
  justify-content: center;
}

/* Related cases - NEW horizontal card layout */
.case-detail-related {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--gray-border);
}
.case-detail-related h3 {
  font-size: 20px;
  margin-bottom: 20px;
  color: var(--dark);
}
.related-case-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.related-case-item {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-border);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.related-case-item:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
  transform: translateY(-2px);
}
.related-case-img {
  position: relative;
  background: var(--gray-bg);
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.related-case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity .4s;
}
.rel-noimg {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 56px;
  color: var(--primary);
  width: 100%;
  height: 100%;
  min-height: 200px;
}
.rel-noimg span {
  font-size: 13px;
  color: #999;
  margin-top: 8px;
}
.rel-img-badge {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,.55);
  color: #fff;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 12px;
  z-index: 2;
}
.related-case-body {
  padding: 20px 24px 20px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.related-case-body .tag {
  display: inline-block;
  width: fit-content;
  background: var(--primary-light);
  color: var(--primary);
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 12px;
  margin-bottom: 10px;
}
.related-case-body h4 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--dark);
}
.related-case-loc {
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 10px;
}
.related-case-desc {
  font-size: 14px;
  color: #555;
  line-height: 1.6;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-case-link {
  color: var(--primary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
}
.related-case-link:hover { text-decoration: underline; }

@media (max-width: 900px) {
  .case-detail-layout { grid-template-columns: 1fr; }
  .case-detail-info { position: static; }
  .gallery-main-view { min-height: 280px; }
  .gallery-main-view img { max-height: 420px; }
  .case-detail-info h1 { font-size: 20px; }
  .gallery-smart-grid.count-3,
  .gallery-smart-grid.count-5,
  .gallery-smart-grid.count-7 {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
  }
  .gallery-smart-grid.count-3 .grid-img:first-child,
  .gallery-smart-grid.count-5 .grid-img:first-child,
  .gallery-smart-grid.count-7 .grid-img:first-child {
    grid-row: auto; grid-column: 1 / -1;
  }
  .gallery-smart-grid.count-8 { grid-template-columns: repeat(2, 1fr); }
  .gallery-smart-grid.count-6 { grid-template-columns: repeat(2, 1fr); }
  .related-case-item { grid-template-columns: 220px 1fr; }
}
@media (max-width: 640px) {
  .related-case-item { grid-template-columns: 1fr; }
  .related-case-img { min-height: 180px; }
  .related-case-body { padding: 16px 20px; }
}
@media (max-width: 480px) {
  .gallery-smart-grid { grid-template-columns: 1fr !important; }
  .gallery-smart-grid.count-3 .grid-img:first-child,
  .gallery-smart-grid.count-5 .grid-img:first-child,
  .gallery-smart-grid.count-7 .grid-img:first-child {
    grid-column: auto;
  }
  .gallery-smart-grid .grid-img { aspect-ratio: 16/10 !important; }
}

/* === 冷科制冷水印 === */
.lengke-watermark {
  position: relative;
  overflow: hidden;
}
.lengke-watermark::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml;utf8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22260%22%20height%3D%22140%22%20viewBox%3D%220%200%20260%20140%22%3E%0A%20%20%3Cg%20transform%3D%22rotate%28-22%20130%2070%29%22%3E%0A%20%20%20%20%3Ctext%20x%3D%220%22%20y%3D%2295%22%20font-family%3D%22Microsoft%20YaHei%2C%20SimHei%2C%20PingFang%20SC%2C%20sans-serif%22%20font-size%3D%2244%22%20font-weight%3D%22700%22%20fill%3D%22rgba%28255%2C255%2C255%2C0.85%29%22%20stroke%3D%22rgba%280%2C0%2C0%2C0.55%29%22%20stroke-width%3D%221.4%22%20paint-order%3D%22stroke%22%3E%E5%86%B7%E7%A7%91%E5%88%B6%E5%86%B7%3C%2Ftext%3E%0A%20%20%3C%2Fg%3E%0A%3C%2Fsvg%3E");
  background-repeat: repeat;
  background-position: center;
  background-size: 260px 140px;
  z-index: 3;
  opacity: 0.9;
}
/* 专业团队 & 企业资质：毛笔字 PNG 图片水印，右下角单个显示 */
.team-card-img.lengke-watermark::after,
.qual-display-card-img.lengke-watermark::after {
  background-image: url("/images/watermark-lengke.png");
  background-repeat: no-repeat;
  background-position: right 12px bottom 12px;
  background-size: 160px auto;
  opacity: 0.9;
}

/* === 关于页 - 企业资质图网格+轮播 === */
.qual-display-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.qual-display-card {
  text-align: center;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.qual-display-card-img {
  height: 250px;
  background: var(--gray-bg);
  overflow: hidden;
  position: relative;
}
.qual-display-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* === 轮播模式（>3张时启用） === */
.qual-carousel {
  position: relative;
  overflow: hidden;
}
.qual-carousel-track {
  display: flex;
  transition: transform 0.5s ease;
  will-change: transform;
}
.qual-carousel-track .qual-display-card {
  flex: 0 0 calc(33.333% - 14px);
  margin-right: 20px;
}
.qual-carousel-track .qual-display-card:last-child {
  margin-right: 0;
}
.qual-carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.95);
  border: 1px solid #ddd;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  cursor: pointer;
  font-size: 20px;
  color: var(--dark);
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.qual-carousel-btn:hover { background: var(--white); }
.qual-carousel-prev { left: 8px; }
.qual-carousel-next { right: 8px; }
.qual-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}
.qual-carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ccc;
  cursor: pointer;
  transition: background 0.2s;
  border: none;
  padding: 0;
}
.qual-carousel-dot.active { background: var(--primary, #0d6efd); }
@media (max-width: 768px) {
  .qual-display-grid { grid-template-columns: repeat(2, 1fr); }
  .qual-carousel-track .qual-display-card { flex: 0 0 calc(50% - 10px); }
}
@media (max-width: 480px) {
  .qual-display-grid { grid-template-columns: 1fr 1fr; }
  .qual-carousel-track .qual-display-card { flex: 0 0 calc(50% - 10px); }
}