:root {
  --primary: #0F4C81;
  --primary-dark: #0a3660;
  --primary-light: #1a6ab5;
  --accent: #F0A500;
  --accent-hover: #d49400;

  --text: #2c3e50;
  --text-light: #5a6c7d;
  --text-muted: #7f8c9b;

  --bg-light: #f8fafc;
  --bg-gray: #f1f5f9;
  --white: #ffffff;
  --border: #e2e8f0;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);

  --radius: 8px;
  --radius-lg: 12px;
  --transition: all 0.3s ease;
  --max-width: 1400px;

  --header-top-height: 76px;
  --header-mobile-height: 64px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
               'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--white);
  overflow-x: hidden;               
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none !important;
}


.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
}

.header-top {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  height: var(--header-top-height);
  overflow: hidden;

  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);

  padding-left: max(24px, calc(50vw - var(--max-width) / 2));
  padding-right: max(24px, calc(50vw - var(--max-width) / 2));

  background-image: url('https://cmscdn.eceshi.com/vansci/202610/weimingmi.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: var(--primary);         
}

.header-top::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgb(3 37 109) 0%, rgba(15, 76, 129, 0.55) 50%, rgb(43 139 223 / 85%) 100%);
  z-index: 0;
}

.header-top > * {
  position: relative;
  z-index: 1;
}

/* Logo */
.logo {
  justify-self: start;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo img {
  height: 60px;
  width: auto;
  display: block;
}





.logo-mobile {
  display: none !important;
}

@media (max-width: 768px) {
  .logo-desktop {
    display: none !important;
  }
  .logo-mobile {
    display: block !important;
    height: 40px !important;        
    width: auto;
  }
}







.logo-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 10px;
}

.logo-text {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #fff;
}

.logo-text span {
  color: var(--accent);
}

.search-box {
  justify-self: center;
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 420px;
  padding: 6px 14px;
  gap: 8px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 24px;
  backdrop-filter: blur(6px);
  transition: var(--transition);
}

.search-box form {
  display: flex;
  align-items: center;
  width: 100%;
  gap: 8px;
}

.search-box input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  font-family: inherit;
  color: #fff;
}

.search-box input::placeholder {
  color: rgba(255, 255, 255, 0.75);
}

.search-box button {
  padding: 2px;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.9);
  transition: var(--transition);
}

.search-box button:hover {
  color: #fff;
}

.search-box:focus-within {
  background: rgba(255, 255, 255, 0.95);
  border-color: #fff;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.25);
}

.search-box:focus-within input {
  color: var(--text);
}

.search-box:focus-within input::placeholder {
  color: var(--text-muted);
}

.search-box:focus-within button {
  color: var(--primary);
}

.header-contact {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 22px;
}

.header-contact .contact-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 500;
  white-space: nowrap;
  color: rgba(255, 255, 255, 0.92);
  transition: var(--transition);
}

.header-contact .contact-item i {
  font-size: 16px;
  color: var(--accent);
  transition: var(--transition);
}

.header-contact .contact-item:hover {
  color: #fff;
}

.header-contact .contact-item:hover i {
  color: #fff;
}

.mobile-toggle {
  display: none;
  justify-self: end;
  padding: 8px;
  border: none;
  background: none;
  border-radius: 6px;
  font-size: 24px;
  color: #fff;
  cursor: pointer;
  transition: var(--transition);
}

.mobile-toggle:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.nav-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  border-top: 1px solid var(--border);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 16px 36px;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.3px;
  white-space: nowrap;
  color: var(--text);
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
}

.nav-link i {
  font-size: 10px;
  transition: transform 0.3s ease;
}

.nav-link:hover {
  color: var(--primary);
  background: #f0f6fc;
}

.nav-item.active .nav-link {
  color: var(--primary);
  font-weight: 600;
  background: #eef5fc;
}

.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  padding: 8px 0;
  list-style: none;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.25s ease;
  z-index: 100;
}

.nav-item:hover > .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(4px);
}

.dropdown li {
  position: relative;
}

.dropdown li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  font-size: 14px;
  white-space: nowrap;
  color: var(--text);
  transition: var(--transition);
}

.dropdown li a:hover {
  background: #f0f6fc;
  color: var(--primary);
}

.dropdown li a i.fa-chevron-right {
  margin-left: 8px;
  font-size: 10px;
  color: var(--text-muted);
  transition: transform 0.3s ease;
}

.nav-item:hover > .nav-link i.fa-chevron-down {
  transform: rotate(180deg);
}

.sub-dropdown {
  position: absolute;
  top: 0;
  left: 100%;
  min-width: 200px;
  padding: 8px 0;
  list-style: none;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateX(8px);
  transition: all 0.25s ease;
  z-index: 101;
}

.dropdown li:hover > .sub-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.dropdown li:hover > a i.fa-chevron-right {
  transform: rotate(90deg);
  color: var(--primary);
}

.dropdown li.active > a,
.sub-dropdown li.active > a {
  color: var(--primary);
}


.banner-section {
  position: relative;
  width: 100%;
  height: auto;
  aspect-ratio: 1920 / 600;
  overflow: hidden;
}

.banner-slides {
  position: absolute;
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.banner-slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  flex-shrink: 0;
  position: relative;
}

.banner-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}


.section {
  padding: 40px 24px;
}

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

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-header .subtitle {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
}

.section-header h2 {
  margin-bottom: 12px;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text);
}

.section-header .divider {
  width: 50px;
  height: 3px;
  margin: 0 auto 14px;
  background: #1a73e8;
  border-radius: 2px;
}

.section-header p {
  max-width: var(--max-width);
  margin: 0 auto;
  font-size: 15px;
  color: var(--text-light);
}


.services-section {
  background: var(--bg-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  justify-content: space-around;
}

.service-card {
  position: relative;
  overflow: hidden;
  padding: 14px 28px;
  text-align: center;
  background: var(--white);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.4s ease;
}

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

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
  color: var(--primary);
  background: #eef5fc;
  border-radius: 50%;
  transition: var(--transition);
}

.service-icon img {
  width: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.service-card:hover .service-icon {
  background: var(--primary);
  color: #fff;
  transform: scale(1.08);
}

.service-card h3 {
  width: 210px;
  margin-bottom: 10px;
  font-size: 18px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  color: var(--text);
}

.service-card p {
  height: 50px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-light);
  overflow: hidden;
}


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

.about-wrapper {
  display: flex;
  gap: 50px;
  align-items: stretch;
}

.about-image {
  flex: 1;
  min-width: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.about-image img {
  width: 100%;
  height: 100%;
  min-height: 380px;
  object-fit: cover;
  display: block;
}

.about-image .experience-badge {
  position: absolute;
  bottom: 20px;
  right: 20px;
  padding: 16px 20px;
  text-align: center;
  color: #fff;
  background: var(--accent);
  border-radius: var(--radius);
  box-shadow: 0 4px 16px rgba(240, 165, 0, 0.35);
}

.experience-badge .number {
  display: block;
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
}

.experience-badge .label {
  font-size: 12px;
  letter-spacing: 1px;
  opacity: 0.9;
}

.about-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.about-text h3 {
  margin-bottom: 8px;
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
}

.about-text .subheading {
  margin-bottom: 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
}

.about-text p {
  margin-bottom: 24px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-light);
}


.strength-numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 8px;
}

.strength-item {
  padding: 16px 10px;
  text-align: center;
  background: var(--bg-light);
  border-radius: var(--radius);
  transition: var(--transition);
}

.strength-item:hover {
  background: #eef5fc;
  transform: translateY(-2px);
}

.strength-item .num {
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: #1a73e8;
}

.strength-item .num span {
  font-size: 16px;
}

.strength-item .desc {
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}


.advantages-section {
  background: linear-gradient(180deg, #f8fafc 0%, #eef3f8 100%);
}

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

.advantage-card {
  padding: 32px 20px;
  text-align: center;
  background: var(--white);
  border-bottom: 3px solid transparent;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.advantage-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-bottom-color: var(--primary);
}

.advantage-icon {
  display: inline-block;
  margin-bottom: 16px;
  font-size: 40px;
  color: #1a73e8;
  transition: var(--transition);
}

.advantage-card:hover .advantage-icon {
  transform: scale(1.1);
  color: var(--accent);
}

.advantage-card h4 {
  margin-bottom: 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

.advantage-card p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-light);
}


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

.industries-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.industry-card {
  position: relative;
  aspect-ratio: 4 / 3;
  background-size: cover;
  background-position: center;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: var(--transition);
}

.industry-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0.1) 50%);
  transition: var(--transition);
}

.industry-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.industry-card:hover::after {
  background: linear-gradient(to top, rgba(15, 76, 129, 0.8) 0%, rgba(0, 0, 0, 0.2) 50%);
}

.industry-card:nth-child(1) { background-image: url('https://picsum.photos/400/530?random=31'); }
.industry-card:nth-child(2) { background-image: url('https://picsum.photos/400/530?random=32'); }
.industry-card:nth-child(3) { background-image: url('https://picsum.photos/400/530?random=33'); }
.industry-card:nth-child(4) { background-image: url('https://picsum.photos/400/530?random=34'); }

.industry-card .card-label {
  position: absolute;
  bottom: 24px;
  left: 20px;
  z-index: 2;
  color: #fff;
}

.industry-card .card-label h4 {
  margin-bottom: 4px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.industry-card .card-label span {
  font-size: 13px;
  opacity: 0.85;
}


.contact-section {
  background: #F7FAFC;
}

.contact-wrapper {
  display: flex;
  gap: 40px;
}

.contact-form-wrap {
  flex: 1.2;
  padding: 20px 36px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.contact-form-wrap h3 {
  margin-bottom: 6px;
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}

.contact-form-wrap .form-subtitle {
  margin-bottom: 24px;
  font-size: 13px;
  color: var(--text-muted);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: #fafbfc;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.06);
}

.form-group textarea {
  min-height: 120px;
}

.form-row {
  display: flex;
  gap: 16px;
}

.form-row .form-group {
  flex: 1;
}

.btn-submit {
  display: inline-block;
  padding: 14px 40px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.5px;
  font-family: inherit;
  color: #fff;
  background: #1a73e8;
  border: none;
  border-radius: 30px;
  cursor: pointer;
  transition: var(--transition);
}

.btn-submit:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(15, 76, 129, 0.3);
}

.contact-info-wrap {
  flex: 0.8;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 28px 24px;
  background: var(--white);
  border-left: 3px solid transparent;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.contact-info-card:hover {
  transform: translateX(4px);
  border-left-color: var(--primary);
  box-shadow: var(--shadow);
}

.contact-info-card .ci-icon {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #1a73e8;
  background: #eef5fc;
  border-radius: 50%;
}

.contact-info-card .ci-detail h4 {
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.contact-info-card .ci-detail p {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-light);
}


.partners-section {
  padding: 70px 0;
  background-color: #ffffff;
  overflow: hidden;
}

.partners-section .section-header h2 {
  margin-bottom: 10px;
  font-size: 36px;
  font-weight: 700;
  color: #1a2a3a;
}

.partners-section .divider {
  width: 60px;
  height: 3px;
  margin: 12px auto 20px;
  background: #2d7aff;
  border-radius: 3px;
}

.partners-section .section-header p {
  max-width: 700px;
  margin: 0 auto 40px;
  font-size: 16px;
  color: #6b7a8a;
}

.partners-wrapper {
  position: relative;
  width: 100%;
  padding: 10px 0;
  overflow: hidden;
}

.partners-track {
  display: flex;
  align-items: center;
  gap: 40px;
  width: max-content;
  animation: scrollPartners 25s linear infinite;
}

.partner-item {
  flex: 0 0 auto;
  width: 160px;
  height: 120px;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  transition: box-shadow 0.3s ease;
}

.partner-item img {
  max-width: 100%;
  max-height: 100%;
  display: block;
  object-fit: contain;
  filter: grayscale(0%);
  transition: filter 0.3s ease;
}

.partner-item:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.partner-item:hover img {
  filter: grayscale(0%);
}

.partners-wrapper:hover .partners-track {
  animation-play-state: paused;
}

@keyframes scrollPartners {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}


.footer {
  padding: 50px 24px 20px;
  color: #cbd5e1;
  background: #0d1b2a;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  gap: 50px;
  flex-wrap: wrap;
}

.footer-left {
  flex: 0 0 260px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-logo .logo-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  background: var(--primary-light);
  border-radius: 8px;
}

.footer-logo .logo-text {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

.footer-logo .logo-text span {
  color: var(--accent);
}

.footer-left p {
  margin-bottom: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: #94a3b8;
}

.footer-social {
  display: flex;
  gap: 10px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: #cbd5e1;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  transition: var(--transition);
}

.footer-social a:hover {
  transform: translateY(-2px);
  color: #fff;
  background: var(--primary);
}

.footer-right {
  flex: 1;
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer-col h4 {
  margin-bottom: 16px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: #fff;
}

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

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 13px;
  color: #94a3b8;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-col ul li i {
  margin-right: 6px;
  font-size: 11px;
  color: var(--accent);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 30px auto 0;
  padding-top: 20px;
  text-align: center;
  font-size: 12px;
  color: #64748b;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}


.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  background: var(--primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  z-index: 999;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}



/* ---------- 平板 ≤1024px ---------- */
@media (max-width: 1024px) {
  .services-grid    { grid-template-columns: repeat(2, 1fr); }
  .advantages-grid  { grid-template-columns: repeat(2, 1fr); }
  .industries-grid  { grid-template-columns: repeat(2, 1fr); }
  .strength-numbers { grid-template-columns: repeat(2, 1fr); }

  .about-wrapper {
    flex-direction: column;
  }
  .about-image {
    max-height: 350px;
  }
  .about-image img {
    min-height: 300px;
  }

  .contact-wrapper {
    flex-direction: column;
  }

  .footer-inner {
    flex-direction: column;
    gap: 30px;
  }
  .footer-right {
    justify-content: flex-start;
  }

/
  .sub-dropdown {
    left: 100%;
    top: 0;
  }
}

/* ---------- 移动端 ≤768px ---------- */
@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
  }

  .header-top {
    display: flex;
    align-items: center;
    gap: 12px;
    height: var(--header-mobile-height);

    padding-left: max(16px, calc(50vw - var(--max-width) / 2));
    padding-right: max(16px, calc(50vw - var(--max-width) / 2));

    /* background-image: url('/static/images/header-bg-mobile.jpg'); */
  }

  .header-contact {
    display: none;
  }

  .search-box {
    flex: 1;
 max-width: none;
    margin: 0;
  }
  @media (max-width: 480px) {
    .search-box {
    flex: 1;
/*    max-width: none;*/
max-width: 200px;
    margin: 0;
  }

 }
  .nav-wrapper {
    position: fixed;
    top: var(--header-mobile-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 20px;
    background: var(--white);
    border-top: none;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-120%);
    transition: all 0.35s ease;
    z-index: 999;
    max-height: calc(100vh - var(--header-mobile-height));
    overflow-y: auto;
  }

  .nav-wrapper.mobile-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 2px;
  }

  .nav-link {
    padding: 12px 16px;
    font-size: 15px;
    justify-content: space-between;
  }

  .dropdown,
  .sub-dropdown {
    position: static;
    display: none;
    min-width: auto;
    padding: 0 0 0 20px;
    background: #fafcfd;
    border: none;
    border-radius: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-item.dropdown-open > .dropdown,
  .dropdown li.submenu-open > .sub-dropdown {
    display: block;
  }

  .nav-item:hover > .dropdown,
  .dropdown li:hover > .sub-dropdown {
    display: none;
  }

  .nav-item.dropdown-open:hover > .dropdown,
  .dropdown li.submenu-open:hover > .sub-dropdown {
    display: block;
  }

  .sub-dropdown {
    padding-left: 20px;
    background: #f2f6f9;
  }

  .mobile-toggle {
    display: block;
    flex-shrink: 0;
  }

  .section {
    padding: 50px 16px;
  }
  .section-header h2 {
    font-size: 26px;
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .advantages-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
  .industries-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .strength-numbers {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .form-row {
    flex-direction: column;
    gap: 0;
  }

  .footer-right {
    gap: 24px;
  }
  .footer-left {
    flex: 0 0 auto;
  }

  .banner-arrow {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }
  .banner-arrow.prev { left: 10px; }
  .banner-arrow.next { right: 10px; }
}

/* ---------- 小屏 ≤480px ---------- */
@media (max-width: 480px) {
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  .industries-grid {
    grid-template-columns: 1fr;
  }
  .strength-numbers {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-form-wrap {
    padding: 24px 18px;
  }

  .back-to-top {
    bottom: 20px;
    right: 16px;
    width: 38px;
    height: 38px;
    font-size: 16px;
  }

  .banner-dots span {
    width: 10px;
    height: 10px;
  }
}

@media screen and (max-width: 768px) {
  .partners-section {
    padding: 50px 0;
  }
  .partners-section .section-header h2 {
    font-size: 28px;
  }
  .partners-track {
    gap: 24px;
  }
  .partner-item {
    width: 120px;
    height: 64px;
    padding: 6px;
  }
  .partner-item img {
    max-width: 90%;
  }
}

@media screen and (max-width: 480px) {
  .partners-section {
    padding: 36px 0;
  }
  .partners-track {
    gap: 16px;
  }
  .partner-item {
    width: 100px;
    height: 56px;
    padding: 4px;
  }
}