:root {
  --blue: #1677c8;
  --blue-dark: #0b5fa8;
  --blue-soft: #e8f5ff;
  --page: #f3f9ff;
  --text: #1f2d3d;
  --muted: #6b7c8f;
  --white: #ffffff;
  --line: rgba(22, 119, 200, 0.14);
  --shadow: 0 18px 45px rgba(31, 45, 61, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--page);
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
  border-bottom: 1px solid rgba(22, 119, 200, 0.08);
  box-shadow: 0 6px 20px rgba(31, 45, 61, 0.06);
}

.site-header.is-scrolled {
  box-shadow: 0 12px 32px rgba(31, 45, 61, 0.11);
  border-color: rgba(22, 119, 200, 0.1);
}

.nav-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand-logo {
  width: 72px;
  height: 42px;
  object-fit: contain;
  object-position: left center;
}

.brand-name {
  color: #123b63;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.15;
  white-space: nowrap;
}

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 28px;
  color: #314359;
  font-size: 15px;
}

.site-nav a {
  position: relative;
  min-height: 72px;
  display: inline-flex;
  align-items: center;
  padding: 0 10px;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-active {
  color: var(--blue);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
}

.site-nav a.is-active {
  color: var(--blue);
  background: transparent;
}

.site-nav a.is-active::after {
  display: block;
}

.nav-cta,
.btn {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-weight: 700;
  transition: transform 0.22s ease, background 0.22s ease, color 0.22s ease, box-shadow 0.22s ease;
}

.nav-cta {
  flex: 0 0 auto;
  min-height: 46px;
  padding: 0 22px;
  color: var(--white);
  background: #f5a623;
  box-shadow: 0 12px 24px rgba(245, 166, 35, 0.24);
  font-size: 14px;
  border-radius: 999px;
}

.nav-cta:hover {
  background: #ee9414;
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(238, 148, 20, 0.34);
}

.btn-primary:hover {
  background: var(--blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(22, 119, 200, 0.25);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 6px;
  background: var(--blue-soft);
  padding: 10px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--blue);
  border-radius: 999px;
}

.section-blue {
  background: var(--page);
}

.hero.section-blue {
  position: relative;
  background:
    radial-gradient(circle at 22% 52%, rgba(22, 119, 200, 0.36) 0, rgba(22, 119, 200, 0.16) 23%, rgba(22, 119, 200, 0) 45%),
    radial-gradient(circle at 76% 42%, rgba(80, 180, 232, 0.26) 0, rgba(80, 180, 232, 0.1) 26%, rgba(80, 180, 232, 0) 52%),
    linear-gradient(135deg, #071b33 0%, #0c3158 48%, #08233f 100%);
  color: var(--white);
}

.hero.section-blue::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.32;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 54px 54px;
  pointer-events: none;
}

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

.hero {
  padding: 76px 0 72px;
  overflow: hidden;
}

.hero-grid,
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(390px, 500px);
  align-items: center;
  gap: 62px;
  position: relative;
  z-index: 1;
}

.about-grid {
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.9fr);
  gap: 58px;
}

.hero-content {
  min-height: 500px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: none;
  color: var(--text);
  font-size: 42px;
  line-height: 1.18;
  letter-spacing: 0;
  white-space: nowrap;
}

.hero h1 {
  color: var(--white);
  text-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
}

.hero .eyebrow {
  color: #79cfff;
}

.hero-lead {
  margin: 24px 0 0;
  max-width: 620px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 20px;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
}

.btn {
  border: 0;
  padding: 0 24px;
  cursor: pointer;
  font-size: 16px;
}

.btn-primary {
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 12px 26px rgba(22, 119, 200, 0.22);
}

.btn-light {
  color: var(--blue);
  background: var(--white);
}

.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(5, 47, 83, 0.18);
}

.phone-text {
  color: rgba(255, 255, 255, 0.92);
  font-weight: 700;
}

.hero-points {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-points span {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.1);
  font-size: 14px;
}

.hero-visual,
.about-image {
  border-radius: 8px;
  overflow: hidden;
}

.hero-visual {
  background: transparent;
  justify-self: center;
  width: min(100%, 500px);
}

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

.hero-visual img,
.about-image img {
  width: 100%;
  min-height: 360px;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.hero-visual img {
  min-height: 0;
  object-fit: contain;
}

.hero-slider {
  position: relative;
  min-height: 500px;
  border-radius: 8px;
}

.hero-slide {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: center;
  justify-items: center;
  opacity: 0;
  transform: translateX(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
  pointer-events: none;
}

.hero-slide.is-active {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.hero-slide img {
  max-height: 430px;
  filter: drop-shadow(0 26px 38px rgba(0, 0, 0, 0.28));
}

.hero-slide p {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 15px;
  font-weight: 700;
}

.slider-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  display: flex;
  justify-content: center;
  gap: 8px;
}

.slider-dots button {
  position: relative;
  width: 42px;
  height: 4px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.22);
  cursor: pointer;
  transition: background 0.22s ease, transform 0.22s ease;
}

.slider-dots button.is-active {
  background: rgba(255, 255, 255, 0.28);
  transform: translateY(-1px);
}

.slider-dots button span {
  position: absolute;
  inset: 0;
  display: block;
  border-radius: inherit;
  background: var(--white);
  transform: scaleX(0);
  transform-origin: left center;
}

.slider-dots button.is-active span {
  animation: sliderProgress 4s linear forwards;
}

@keyframes sliderProgress {
  from {
    transform: scaleX(0);
  }

  to {
    transform: scaleX(1);
  }
}

.hero-visual:hover img,
.about-image:hover img {
  transform: scale(1.035);
}

.section {
  padding: 84px 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: 34px;
}

#products .section-head,
#solutions .section-head,
#news .section-head {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

#products .section-head {
  margin-bottom: 46px;
}

#products .section-head h2::after,
#solutions .section-head h2::after,
#news .section-head h2::after,
.about-text h2::after {
  content: "";
  display: block;
  width: 42px;
  height: 2px;
  margin: 16px auto 0;
  background: #3c4a57;
}

.about-text h2::after {
  margin-left: 0;
}

.section-head h2,
.about-text h2,
.contact-title {
  margin: 0;
  color: var(--text);
  font-size: 34px;
  line-height: 1.28;
  letter-spacing: 0;
}

.section-head p:last-child {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.product-grid,
.solution-grid,
.news-grid {
  display: grid;
  gap: 24px;
}

.product-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: 42px;
  row-gap: 38px;
}

.solution-grid,
.news-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

#solutions {
  background: var(--white);
}

.solution-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 42px;
}

.product-card,
.solution-card,
.news-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.product-card {
  position: relative;
  padding-bottom: 18px;
  border-color: transparent;
  background: transparent;
  overflow: hidden;
  cursor: pointer;
}

.product-card::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: var(--blue);
  transform: translateX(-50%) scaleX(0);
  transform-origin: center;
  transition: transform 0.32s ease;
}

.product-card:hover,
.news-card:hover {
  transform: translateY(-7px);
  border-color: rgba(22, 119, 200, 0.32);
  box-shadow: var(--shadow);
}

.product-card:hover {
  border-color: transparent;
  box-shadow: none;
  transform: translateY(-4px);
}

.product-card:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.product-image {
  height: 216px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: transparent;
}

.product-image img {
  width: 200px;
  height: 216px;
  object-fit: contain;
  transition: transform 0.35s ease;
}

.product-card:hover .product-image img {
  transform: scale(1.06);
}

.card-body {
  padding: 14px 0 0;
  text-align: center;
}

.card-body h3,
.solution-card h3,
.news-card h3 {
  margin: 0;
  color: var(--text);
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: 0;
}

.product-card .card-body h3 {
  color: #41505f;
  font-size: 17px;
  font-weight: 500;
}

.product-card .card-body p {
  color: #7a8793;
  font-size: 14px;
}

.card-body p,
.solution-card p,
.news-card p,
.about-text p {
  color: var(--muted);
}

.card-body p {
  margin: 8px auto 0;
  max-width: none;
}

.product-more {
  margin-top: 42px;
  text-align: center;
}

.product-more a,
.news-more a {
  display: inline-flex;
  min-width: 180px;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid #9aa6b2;
  border-radius: 999px;
  color: #556270;
  transition: color 0.24s ease, border-color 0.24s ease, background 0.24s ease;
}

.product-more a:hover,
.news-more a:hover {
  border-color: var(--blue);
  color: var(--white);
  background: var(--blue);
}

.text-link {
  display: inline-flex;
  margin-top: 8px;
  color: var(--blue);
  font-weight: 700;
}

.text-link:hover {
  color: var(--blue-dark);
}

.solution-card {
  position: relative;
  padding: 0 0 18px;
  border-color: transparent;
  background: transparent;
  overflow: hidden;
}

.solution-image {
  height: 150px;
  margin-bottom: 18px;
  overflow: hidden;
  border-radius: 4px;
  background: #f3f9ff;
}

.solution-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.solution-card:hover .solution-image img {
  transform: scale(1.04);
}

.solution-card:hover {
  transform: translateY(-4px);
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

.solution-card::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: var(--blue);
  transform: translateX(-50%) scaleX(0);
  transform-origin: center;
  transition: transform 0.32s ease;
}

.solution-card:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.solution-card > img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 20px;
  transition: transform 0.35s ease;
}

.solution-card:hover > img {
  transform: translateY(-3px) scale(1.02);
}

.solution-card h3 {
  color: #41505f;
  font-size: 18px;
  font-weight: 500;
}

.solution-card p {
  margin: 8px 0 0;
  color: #7a8793;
  font-size: 15px;
}

.news-card {
  padding: 26px;
}

.news-columns {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
}

.topic-zone {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  align-items: start;
  gap: 24px;
  margin: -12px 0 34px;
  padding: 22px;
  border: 1px solid rgba(22, 119, 200, 0.14);
  border-radius: 6px;
  background: #f6fbff;
}

.topic-title {
  color: var(--blue);
  font-size: 18px;
  font-weight: 700;
  line-height: 34px;
}

.topic-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: 22px;
  row-gap: 12px;
}

.topic-links a {
  display: block;
  min-width: 0;
  height: 34px;
  line-height: 34px;
  color: #324558;
  font-size: 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topic-links a:hover {
  color: var(--blue);
}

.news-column {
  display: grid;
  gap: 12px;
}

.news-item {
  position: relative;
  min-height: 54px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(31, 45, 61, 0.1);
}

.news-item::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.28s ease;
}

.news-item:hover::after {
  transform: scaleX(1);
}

.news-item h3 {
  margin: 0;
  color: #324558;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.45;
  cursor: default;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.news-item p {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% - 6px);
  z-index: 5;
  margin: 0;
  padding: 10px 12px;
  border: 1px solid rgba(22, 119, 200, 0.14);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 14px 28px rgba(31, 45, 61, 0.1);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
  opacity: 0;
  pointer-events: none;
  transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.news-item:hover p {
  opacity: 1;
  transform: translateY(0);
}

.news-more {
  margin-top: 48px;
  text-align: center;
}

.news-card time {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--blue);
  font-weight: 700;
  font-size: 14px;
}

.news-card p {
  margin-bottom: 0;
}

.about-section {
  overflow: hidden;
}

.about-text p {
  margin-top: 18px;
  font-size: 17px;
}

.about-stats {
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.about-stats div {
  min-height: 108px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
}

.about-stats strong {
  display: block;
  color: var(--blue);
  font-size: 24px;
  line-height: 1.2;
}

.about-stats span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

.contact-cta {
  padding: 52px 0;
  background: linear-gradient(135deg, #1677c8 0%, #0b5fa8 100%);
  color: var(--white);
}

.contact-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 44px;
}

.contact-title {
  color: var(--white);
  font-size: 30px;
  font-weight: 700;
  white-space: nowrap;
}

.contact-title span {
  color: #ffd35a;
}

.contact-inner p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.82);
}

.contact-inner .contact-title {
  margin: 0;
}

.contact-actions {
  display: grid;
  grid-template-columns: auto auto;
  flex: 0 0 auto;
  align-items: center;
  gap: 24px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  font-weight: 700;
}

.contact-buttons {
  display: grid;
  align-items: center;
  gap: 10px;
  min-width: 230px;
}

.contact-buttons span {
  color: var(--white);
  white-space: nowrap;
}

.qr-card {
  display: grid;
  gap: 8px;
  justify-items: center;
  padding: 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
}

.qr-card img {
  width: 82px;
  height: 82px;
  padding: 4px;
  border-radius: 6px;
  background: var(--white);
}

.qr-card span {
  color: rgba(255, 255, 255, 0.88);
  font-size: 13px;
  line-height: 1;
}

.site-footer {
  padding: 24px 0;
  color: rgba(255, 255, 255, 0.66);
  background: #0e253d;
}

.footer-inner {
  display: block;
  font-size: 13px;
  line-height: 1.9;
  text-align: center;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  color: rgba(255, 255, 255, 0.78);
}

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

.back-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 6px;
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 12px 28px rgba(22, 119, 200, 0.24);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.22s ease, transform 0.22s ease, background 0.22s ease;
}

.back-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-top:hover {
  background: var(--blue-dark);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .nav-wrap {
    min-height: 70px;
  }

  .brand-name {
    font-size: 16px;
  }

  .nav-toggle {
    display: inline-block;
    margin-left: auto;
  }

  .site-nav,
  .nav-cta {
    display: none;
  }

  .site-nav.is-open {
    position: absolute;
    top: 70px;
    left: 20px;
    right: 20px;
    display: grid;
    gap: 4px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open a {
    padding: 11px 8px;
    min-height: auto;
  }

  .site-nav.is-open a.is-active {
    border-radius: 6px;
  }

  .hero {
    padding-top: 66px;
  }

  .hero-grid,
  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-content {
    min-height: auto;
    padding: 0;
  }

  h1 {
    font-size: 38px;
    white-space: normal;
  }

  .hero-lead {
    font-size: 18px;
  }

  .product-grid,
  .solution-grid,
  .news-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .news-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topic-zone {
    grid-template-columns: 1fr;
  }

  .topic-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-grid {
    column-gap: 34px;
    row-gap: 34px;
  }

  .contact-inner,
  .footer-inner {
    align-items: flex-start;
  }

  .contact-inner {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .footer-inner {
    text-align: left;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, 1180px);
  }

  .brand-logo {
    width: 62px;
    height: 38px;
  }

  .brand {
    gap: 8px;
  }

  .brand-name {
    max-width: 9em;
    font-size: 15px;
    white-space: normal;
  }

  .hero,
  .section {
    padding: 56px 0;
  }

  h1 {
    font-size: 31px;
  }

  .hero-content {
    padding: 28px 20px;
  }

  .section-head h2,
  .about-text h2,
  .contact-title {
    font-size: 27px;
  }

  .hero-actions,
  .contact-actions,
  .contact-buttons {
    align-items: stretch;
  }

  .contact-actions {
    grid-template-columns: 1fr;
    justify-items: stretch;
    width: 100%;
  }

  .contact-title {
    white-space: normal;
  }

  .btn,
  .btn-light {
    width: 100%;
  }

  .hero-visual img,
  .about-image img {
    min-height: 240px;
  }

  .hero-visual img {
    min-height: 0;
  }

  .hero-slider {
    min-height: 410px;
  }

  .hero-slide img {
    max-height: 355px;
  }

  .product-grid,
  .solution-grid,
  .news-grid,
  .about-stats {
    grid-template-columns: 1fr;
  }

  .news-columns {
    grid-template-columns: 1fr;
  }

  .topic-links {
    grid-template-columns: 1fr;
  }

  .product-image {
    height: 216px;
  }

  .product-card .card-body {
    text-align: center;
  }
}