:root {
  --blue: #2252D4;
  --text: #111111;
  --muted: #666666;
  --soft: #f5f5f5;
  --line: #dddddd;
  --container: 1200px;
  --header-height: 70px;
  --shadow: 0 10px 28px rgba(24, 42, 87, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #ffffff;
}

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

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

.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.header-inner {
  width: min(var(--container), calc(100% - 48px));
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 186px;
}

.brand-mark {
  width: 45px;
  height: 45px;
}

.brand-wordmark {
  display: grid;
  gap: 4px;
}

.brand-wordmark img:first-child {
  width: 112px;
}

.brand-wordmark img:last-child {
  width: 106px;
}

.primary-nav {
  display: flex;
  align-items: stretch;
  height: 100%;
  gap: 34px;
}

.primary-nav a {
  position: relative;
  display: flex;
  align-items: center;
  color: #050505;
  font-size: 30px;
  font-weight: 400;
  line-height: 1;
}

.primary-nav a.is-active {
  color: var(--blue);
  font-weight: 700;
}

.primary-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5px;
  background: var(--blue);
}

.search-button {
  width: 42px;
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
}

.search-button img {
  width: 30px;
  height: 30px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  padding: 9px;
}

.nav-toggle span {
  display: block;
  height: 3px;
  margin: 5px 0;
  background: var(--blue);
}

.hero {
  position: relative;
  overflow: hidden;
  background: #dfe8f5;
}

.home-hero {
  height: 450px;
}

.page-hero {
  height: 300px;
}

.hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.48);
}

.hero-content {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  z-index: 1;
  pointer-events: none;
}

.home-hero .hero-title {
  margin-bottom: 0;
  padding: 0 18px 0 22px;
  color: var(--blue);
  font-size: 61px;
  font-weight: 800;
  line-height: 1.45;
  background: rgba(255, 255, 255, 0.72);
  border-left: 10px solid var(--blue);
}

.page-hero .hero-title {
  margin-bottom: 36px;
  color: #ffffff;
  font-size: 54px;
  font-weight: 700;
  line-height: 1.1;
}

.section {
  padding: 48px 0;
}

.section-title {
  margin: 0 0 36px;
  text-align: center;
  font-size: 42px;
  font-weight: 400;
  line-height: 1.25;
}

.home-services {
  padding-top: 56px;
  padding-bottom: 86px;
}

.home-service-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 50px 28px;
}

.service-type-card {
  display: grid;
  gap: 14px;
  text-align: center;
  transition: transform 0.18s ease;
}

.service-type-card:hover {
  transform: translateY(-2px);
}

.service-type-image {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #eeeeee;
}

.service-type-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-type-name {
  font-size: 30px;
  font-weight: 400;
  line-height: 1.15;
}

.service-tabs-wrap {
  padding-top: 20px;
}

.service-type-tabs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  padding: 0 32px;
  border: 1px solid var(--line);
}

.service-type-tab {
  padding: 22px 8px;
  text-align: center;
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
}

.service-type-tab.is-active {
  color: var(--blue);
  font-weight: 700;
}

.service-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 34px 44px;
  padding-bottom: 70px;
}

.service-card {
  position: relative;
  min-height: 130px;
  padding: 20px 22px 26px 34px;
  border: 1px solid var(--line);
  background: #ffffff;
  transition: box-shadow 0.18s ease, transform 0.18s ease;
}

.service-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 10px;
  background: rgba(34, 82, 212, 0.8);
}

.service-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.service-card:hover::before {
  background: var(--blue);
}

.service-card h2 {
  margin: 0 0 16px;
  font-size: 30px;
  line-height: 1.2;
}

.service-card p {
  margin: 0;
  color: #555555;
  font-size: 21px;
  line-height: 1.35;
}

.service-card span {
  position: absolute;
  right: 12px;
  bottom: 8px;
  color: #888888;
  font-size: 16px;
}

.about-intro {
  padding-top: 42px;
}

.about-logo {
  display: grid;
  justify-items: center;
  gap: 10px;
  margin-bottom: 28px;
}

.about-logo img:first-child {
  width: 260px;
}

.about-logo img:last-child {
  width: 252px;
}

.about-copy {
  color: #5d5d5d;
  font-size: 27px;
  font-weight: 400;
  line-height: 1.55;
}

.about-copy p {
  margin: 0 0 24px;
}

.about-ship {
  margin: 22px 0 56px;
}

.about-ship img {
  width: 100%;
  height: auto;
}

.advantage-heading {
  margin: 0 0 48px;
  text-align: center;
}

.advantage-heading strong {
  display: block;
  font-size: 31px;
  line-height: 1.25;
}

.advantage-heading span {
  display: block;
  margin-top: 10px;
  color: #555555;
  font-size: 26px;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 52px 82px;
}

.advantage-item h2 {
  margin: 0 0 10px;
  padding-bottom: 12px;
  border-bottom: 4px solid var(--blue);
  font-size: 27px;
  line-height: 1.2;
}

.advantage-item p {
  margin: 0;
  color: #666666;
  font-size: 25px;
  font-weight: 400;
  line-height: 1.45;
}

.contact-lead {
  margin: 0 0 22px;
  color: #666666;
  font-size: 27px;
  font-weight: 400;
  line-height: 1.55;
}

.contact-main {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}

.contact-card,
.qr-card {
  min-height: 388px;
  border: 1px solid var(--line);
  background: #ffffff;
}

.contact-card {
  padding: 34px 40px;
}

.contact-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
  font-size: 34px;
  font-weight: 700;
}

.contact-title img,
.contact-row img,
.info-item img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  filter: brightness(0) saturate(100%) invert(26%) sepia(93%) saturate(2928%) hue-rotate(222deg) brightness(88%) contrast(99%);
}

.contact-list {
  display: grid;
  gap: 34px;
  margin-top: 34px;
}

.contact-row {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #666666;
  font-size: 34px;
  font-weight: 400;
  line-height: 1.15;
}

.contact-row a {
  text-decoration: underline;
}

.qr-card {
  display: grid;
  justify-items: center;
  padding: 28px 28px 22px;
}

.qr-card img {
  width: min(100%, 372px);
  aspect-ratio: 1 / 1;
  object-fit: contain;
}

.qr-card p {
  margin: 10px 0 0;
  color: #8a8a8a;
  text-align: center;
  font-size: 24px;
  font-weight: 400;
}

.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 70px;
}

.info-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 16px;
  align-items: start;
}

.info-item h2 {
  margin: 8px 0 22px;
  font-size: 32px;
  line-height: 1.2;
}

.info-item p {
  margin: 0;
  color: #666666;
  font-size: 30px;
  font-weight: 400;
  line-height: 1.45;
}

.detail-layout {
  padding-top: 30px;
  padding-bottom: 70px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 26px;
  color: #666666;
  font-size: 16px;
}

.breadcrumb a {
  color: var(--blue);
}

.detail-heading {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.detail-heading h1 {
  margin: 0 0 14px;
  font-size: 42px;
  line-height: 1.18;
}

.detail-heading p {
  margin: 0;
  max-width: 760px;
  color: #555555;
  font-size: 22px;
  line-height: 1.55;
}

.detail-type-badge {
  padding: 12px 18px;
  color: var(--blue);
  border: 1px solid rgba(34, 82, 212, 0.28);
  background: rgba(34, 82, 212, 0.06);
  font-size: 18px;
  font-weight: 700;
}

.detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 42px;
}

.detail-main {
  display: grid;
  gap: 28px;
}

.detail-panel {
  border: 1px solid var(--line);
  padding: 28px;
  background: #ffffff;
}

.detail-panel h2 {
  margin: 0 0 20px;
  padding-left: 14px;
  border-left: 6px solid var(--blue);
  font-size: 27px;
  line-height: 1.2;
}

.detail-panel ul,
.detail-panel ol {
  margin: 0;
  padding-left: 24px;
  color: #555555;
  font-size: 20px;
  line-height: 1.75;
}

.detail-panel li + li {
  margin-top: 8px;
}

.detail-side {
  display: grid;
  gap: 24px;
  align-content: start;
}

.audience-box {
  border: 1px solid rgba(34, 82, 212, 0.28);
  padding: 28px;
  background: rgba(34, 82, 212, 0.05);
}

.audience-box h2 {
  margin: 0 0 18px;
  color: var(--blue);
  font-size: 25px;
}

.audience-box p {
  margin: 0;
  color: #555555;
  font-size: 20px;
  line-height: 1.65;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-list details {
  border: 1px solid var(--line);
  padding: 16px 18px;
}

.faq-list summary {
  cursor: pointer;
  font-size: 19px;
  font-weight: 700;
}

.faq-list p {
  margin: 14px 0 0;
  color: #555555;
  font-size: 18px;
  line-height: 1.6;
}

.detail-cta {
  margin-top: 42px;
  padding: 36px;
  color: #ffffff;
  background: var(--blue);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.detail-cta h2 {
  margin: 0 0 10px;
  font-size: 30px;
}

.detail-cta p {
  margin: 0;
  font-size: 19px;
  line-height: 1.5;
}

.button-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  color: var(--blue);
  background: #ffffff;
  font-size: 18px;
  font-weight: 700;
  white-space: nowrap;
}

.site-footer {
  background: #eeeeee;
}

.footer-inner {
  width: min(var(--container), calc(100% - 48px));
  min-height: 64px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 46px;
  color: #8b8b8b;
  font-size: 19px;
  font-weight: 400;
}

@media (max-width: 1024px) {
  :root {
    --header-height: 64px;
  }

  .container,
  .header-inner,
  .footer-inner {
    width: min(100% - 32px, var(--container));
  }

  .primary-nav {
    gap: 24px;
  }

  .primary-nav a {
    font-size: 24px;
  }

  .home-service-grid,
  .service-type-tabs {
    grid-template-columns: repeat(4, 1fr);
  }

  .service-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-row {
    font-size: 26px;
  }

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

@media (max-width: 760px) {
  .site-header {
    position: sticky;
  }

  .brand {
    min-width: 0;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  .brand-wordmark img:first-child {
    width: 96px;
  }

  .brand-wordmark img:last-child {
    width: 90px;
  }

  .nav-toggle {
    display: block;
  }

  .primary-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: var(--header-height);
    display: none;
    height: auto;
    gap: 0;
    flex-direction: column;
    align-items: stretch;
    background: #ffffff;
    border-top: 1px solid var(--line);
    box-shadow: var(--shadow);
  }

  .primary-nav.is-open {
    display: flex;
  }

  .primary-nav a {
    justify-content: center;
    padding: 18px;
    font-size: 22px;
  }

  .primary-nav a.is-active::after {
    left: 40%;
    right: 40%;
  }

  .search-button {
    align-self: center;
    height: 48px;
  }

  .home-hero {
    height: 320px;
  }

  .page-hero {
    height: 220px;
  }

  .home-hero .hero-title {
    margin-bottom: 22px;
    font-size: 34px;
    line-height: 1.25;
  }

  .page-hero .hero-title {
    margin-bottom: 28px;
    font-size: 36px;
  }

  .section {
    padding: 34px 0;
  }

  .section-title {
    margin-bottom: 28px;
    font-size: 32px;
  }

  .home-service-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px 16px;
  }

  .service-type-name {
    font-size: 22px;
  }

  .service-type-tabs {
    grid-template-columns: repeat(2, 1fr);
    padding: 0;
  }

  .service-type-tab {
    padding: 14px 6px;
    font-size: 21px;
  }

  .service-card-grid,
  .advantage-grid,
  .contact-main,
  .contact-info-grid {
    grid-template-columns: 1fr;
  }

  .service-card h2 {
    font-size: 25px;
  }

  .service-card p {
    font-size: 18px;
  }

  .about-logo img:first-child {
    width: 210px;
  }

  .about-logo img:last-child {
    width: 204px;
  }

  .about-copy,
  .advantage-item p,
  .contact-lead {
    font-size: 20px;
  }

  .advantage-grid {
    gap: 34px;
  }

  .contact-card {
    padding: 26px 22px;
  }

  .contact-title {
    font-size: 26px;
  }

  .contact-row {
    gap: 18px;
    font-size: 22px;
  }

  .contact-title img,
  .contact-row img,
  .info-item img {
    width: 40px;
    height: 40px;
  }

  .info-item {
    grid-template-columns: 48px 1fr;
  }

  .info-item h2 {
    font-size: 25px;
  }

  .info-item p {
    font-size: 22px;
  }

  .detail-heading {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .detail-heading h1 {
    font-size: 34px;
  }

  .detail-heading p {
    font-size: 19px;
  }

  .detail-panel {
    padding: 22px;
  }

  .detail-cta {
    align-items: stretch;
    flex-direction: column;
  }

  .button-primary {
    width: 100%;
  }

  .footer-inner {
    padding: 18px 0;
    flex-direction: column;
    gap: 8px;
    text-align: center;
    font-size: 15px;
  }
}