:root {
  --blue: #073fab;
  --blue-deep: #031b52;
  --cyan: #34aee4;
  --ink: #111827;
  --muted: #697386;
  --line: #e8edf5;
  --paper: #ffffff;
  --soft: #f5f8fc;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--paper);
  line-height: 1.7;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  padding: 0 clamp(18px, 7vw, 180px);
  background: rgba(246, 248, 252, 0.96);
  color: var(--ink);
  border-bottom: 1px solid #e8edf5;
  box-shadow: 0 8px 24px rgba(16, 24, 40, 0.04);
  backdrop-filter: blur(12px);
}

.brand img {
  width: 158px;
  height: 58px;
  object-fit: contain;
  object-position: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.site-nav {
  display: flex;
  gap: clamp(18px, 2.8vw, 44px);
  align-items: center;
  font-size: 15px;
}

.site-nav a {
  color: #374151;
  white-space: nowrap;
}

.site-nav a:hover {
  color: var(--blue);
}

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

.menu-button {
  display: none;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 28px;
}

.section {
  padding: clamp(70px, 7vw, 118px) clamp(18px, 6vw, 110px);
}

.home-hero {
  position: relative;
  min-height: min(56.2vw, 860px);
  overflow: hidden;
  background-color: #f7f8fa;
}

.hero-slides,
.hero-slide {
  position: absolute;
  inset: 0;
}

.hero-slide {
  opacity: 0;
  background-image: var(--slide-image);
  background-repeat: no-repeat;
  background-size: 100% auto;
  background-position: var(--slide-position);
  transition: opacity 700ms ease;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide span {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.slider-dots {
  position: absolute;
  left: 50%;
  bottom: 52px;
  z-index: 3;
  display: flex;
  gap: 24px;
  transform: translateX(-50%);
}

.slider-dot {
  width: 22px;
  height: 22px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #d6d6d6;
  cursor: pointer;
}

.slider-dot.active {
  background: var(--blue);
}

.home-divider {
  height: clamp(58px, 4.4vw, 96px);
  background: #020204;
}

.section-head {
  max-width: 760px;
  margin: 0 auto 54px;
  text-align: center;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.15;
}

.section-head h2::after {
  content: "";
  display: block;
  width: 104px;
  height: 5px;
  margin: 20px auto 0;
  background: var(--blue);
}

.section-head p {
  margin: 18px 0 0;
  color: var(--muted);
}

.align-left {
  margin-left: 0;
  text-align: left;
}

.align-left h2::after {
  margin-left: 0;
}

.service-grid,
.case-grid,
.job-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(26px, 3vw, 52px);
  max-width: 1680px;
  margin: 0 auto;
}

.service-card {
  display: flex;
  min-height: 395px;
  padding: 64px 54px 52px;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 14px 34px rgba(16, 24, 40, 0.05);
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.service-card h3 {
  margin: 0;
  color: var(--blue);
  font-size: clamp(24px, 2.3vw, 34px);
  font-weight: 500;
}

.service-card p {
  margin: 24px 0 auto;
  color: var(--muted);
  font-size: 17px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: min(100%, 282px);
  height: 62px;
  margin-top: 42px;
  border-radius: 8px;
  background: var(--blue);
  color: #fff;
  font-weight: 400;
}

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

.case-card {
  position: relative;
  min-height: 380px;
  padding: 28px;
  overflow: hidden;
  color: #fff;
  background: var(--blue-deep);
}

.case-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
}

.case-card div {
  position: relative;
  z-index: 1;
  display: flex;
  height: 100%;
  flex-direction: column;
  justify-content: flex-end;
}

.case-card span {
  color: #a9dfff;
}

.case-card h3 {
  margin: 8px 0 0;
  font-size: 24px;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: clamp(28px, 6vw, 90px);
  align-items: center;
}

.lead {
  margin: 0;
  color: #4b5563;
  font-size: clamp(17px, 2vw, 22px);
}

.section-image {
  height: 420px;
  width: 100%;
  object-fit: cover;
  object-position: top center;
  box-shadow: 0 20px 60px rgba(16, 24, 40, 0.1);
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.partner-item,
.job-card {
  min-height: 104px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--blue-deep);
  font-size: 22px;
  font-weight: 700;
}

.job-card {
  min-height: 150px;
}

.job-card {
  padding: 24px;
  text-align: center;
}

.job-card strong {
  display: block;
  font-size: 22px;
}

.job-card p {
  margin: 10px 0 0;
  color: #697386;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.7;
}

.contact-section {
  padding: clamp(70px, 8vw, 128px) clamp(18px, 6vw, 110px) clamp(86px, 10vw, 160px);
  color: #fff;
  background:
    linear-gradient(rgba(3, 27, 82, 0.68), rgba(3, 27, 82, 0.84)),
    url("/img/shenzhen-skyline-contact.png") center / cover;
}

.contact-inner {
  max-width: 1560px;
  margin: 0 auto;
}

.contact-section .section-head p {
  color: rgba(255, 255, 255, 0.75);
}

.contact-section .section-head h2::after {
  background: #fff;
}

.map-panel {
  position: relative;
  width: min(100%, 1120px);
  min-height: clamp(240px, 30vw, 520px);
  margin: 46px auto 64px;
  border: 8px solid rgba(255, 255, 255, 0.86);
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.24);
  background: rgba(255, 255, 255, 0.94);
  overflow: hidden;
}

.map-shot {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-repeat: no-repeat;
  background-size: 100% auto;
  background-position: center;
}

.map-shot span {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 4px;
  background: var(--blue);
  color: #fff;
  box-shadow: 0 8px 24px rgba(3, 27, 82, 0.24);
}

.contact-card {
  display: grid;
  width: min(100%, 1120px);
  gap: 24px;
  margin: 0 auto;
  padding: 0;
  border: 0;
  background: transparent;
}

.contact-card p {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 24px;
  margin: 0;
}

.contact-card strong {
  color: #a9dfff;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 20px;
  padding: 28px 18px;
  color: rgba(255, 255, 255, 0.72);
  background: #020204;
  font-size: 14px;
  text-align: center;
}

.dark-page {
  background: #020204;
  color: #d7dde8;
}

.light-page {
  background: #fff;
  color: var(--ink);
}

.service-list-page {
  background: #f6f8fc;
  color: var(--ink);
}

.service-list-page .page-section {
  background: #f6f8fc;
}

.service-list-page .section-head h2 {
  color: var(--blue);
}

.service-list-page .section-head p {
  color: #697386;
}

.case-list-page,
.case-detail-page {
  background: #fff;
  color: var(--ink);
}

.case-list-page .page-section,
.case-detail-section {
  background: #fff;
}

.case-list-page .section-head h2,
.case-detail-page .section-head h2 {
  color: var(--blue);
}

.case-list-page .section-head p {
  color: #697386;
}

.page-hero {
  position: relative;
  min-height: min(35.8vw, 660px);
  display: grid;
  place-items: center;
  overflow: hidden;
  background-repeat: no-repeat;
  background-size: 100% auto;
  background-position: top center;
}

.page-hero span {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.service-hero {
  background-image: url("/img/hero-service.svg");
}

.case-hero {
  background-image: url("/img/hero-case.svg");
}

.about-hero {
  background-image: url("/img/hero-about.svg");
}

.partner-hero {
  background-image: url("/img/hero-partner.svg");
}

.join-hero {
  background-image: url("/img/hero-join.svg");
}

.contactus-hero {
  background-image: url("/img/hero-contact.svg");
}

.breadcrumb {
  padding: 42px clamp(18px, 14vw, 520px);
  color: #111827;
  background: #f4f4f5;
  font-size: clamp(15px, 1.4vw, 22px);
}

.breadcrumb a {
  color: #111827;
}

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

.breadcrumb span {
  color: #9ca3af;
}

.page-section {
  min-height: 720px;
  background: #020204;
}

.light-page .page-section {
  background: #fff;
}

.light-page .section-head h2 {
  color: var(--blue);
}

.light-page .section-head p {
  color: #697386;
}

.dark-page .section-head h2 {
  color: var(--blue);
}

.dark-page .section-head p {
  color: #747b88;
  font-weight: 700;
}

.service-page-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 58px 52px;
  max-width: 1420px;
  margin: 0 auto;
}

.portfolio-card {
  display: grid;
  gap: 0;
  color: var(--ink);
  background: #fff;
  box-shadow: 0 16px 42px rgba(16, 24, 40, 0.08);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.portfolio-card img {
  width: 100%;
  aspect-ratio: 1.08;
  object-fit: cover;
  background: #eef3f9;
}

.portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 56px rgba(16, 24, 40, 0.12);
}

.portfolio-card span {
  display: block;
  padding: 22px 26px 0;
  color: #697386;
  font-weight: 700;
}

.portfolio-card h3 {
  margin: 0;
  padding: 8px 26px 28px;
  color: var(--ink);
  font-size: 22px;
  font-weight: 600;
}

.about-page {
  background: #fff;
  color: var(--ink);
}

.about-page .page-section {
  background: #fff;
}

.about-content {
  color: #4b5563;
  font-size: clamp(17px, 1.35vw, 22px);
  line-height: 2.1;
}

.about-content .section-head h2 {
  color: var(--blue);
}

.about-content .section-head p {
  color: #697386;
}

.about-summary {
  max-width: 1280px;
  margin: 0 auto 110px;
  text-align: center;
}

.about-summary p {
  margin: 0;
}

.about-lines,
.about-channel-list {
  max-width: 1120px;
  margin: 0 auto;
  padding-left: 34px;
  border-left: 6px solid var(--blue);
}

.about-lines {
  display: grid;
  gap: 42px;
}

.about-lines p,
.about-channel-list p {
  margin: 0;
}

.about-channel-list {
  display: grid;
  gap: 22px;
  margin-top: 112px;
}

.about-channel-list strong {
  color: var(--blue-deep);
}

.partner-page-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0;
  max-width: 1320px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 18px 50px rgba(16, 24, 40, 0.08);
}

.partner-page-grid .partner-item {
  min-height: 132px;
  border: 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
  color: var(--blue-deep);
  box-shadow: none;
  font-size: clamp(18px, 1.45vw, 25px);
  line-height: 1.25;
  text-align: center;
}

.partner-page-grid .partner-item img {
  max-width: 68%;
  max-height: 58px;
  object-fit: contain;
}

.partner-note {
  max-width: 1320px;
  margin: 34px auto 0;
  color: #8b95a5;
  font-size: 15px;
  text-align: right;
}

.partner-note p {
  margin: 6px 0 0;
}

.home-partner-section {
  background: #f6f8fc;
}

.home-partner-grid {
  max-width: 1320px;
}

.join-content .job-grid {
  max-width: 1080px;
  margin: 0 auto;
}

.join-content .job-card {
  border-color: var(--line);
  background: #fff;
  color: var(--blue-deep);
  box-shadow: 0 14px 34px rgba(16, 24, 40, 0.05);
}

.join-note {
  max-width: 1080px;
  margin: 58px auto 0;
  padding: 32px;
  border-left: 6px solid var(--blue);
  background: #f6f8fc;
}

.join-note h3 {
  margin: 0 0 10px;
  color: var(--ink);
}

.join-note p {
  margin: 0;
  color: #4b5563;
}

.service-detail-section {
  min-height: auto;
  background: #f6f8fc;
}

.service-detail-section > div {
  max-width: 1520px;
  margin: 0 auto;
}

.service-detail-copy {
  max-width: 880px;
  margin: 0 auto 48px;
  text-align: center;
}

.service-detail-copy h1 {
  margin: 0;
  color: var(--blue);
  font-size: clamp(34px, 4.2vw, 58px);
  line-height: 1.15;
}

.service-detail-copy h1::after {
  content: "";
  display: block;
  width: 104px;
  height: 5px;
  margin: 22px auto 0;
  background: var(--blue);
}

.service-detail-copy p {
  margin: 28px 0 0;
  color: #8e96a3;
  font-size: clamp(17px, 1.6vw, 22px);
}

.service-detail-hero {
  min-height: min(35.8vw, 640px);
  padding: clamp(48px, 7vw, 110px) 18px;
  background-color: #073fab;
  background-image:
    linear-gradient(90deg, rgba(3, 27, 82, 0.36), rgba(3, 27, 82, 0.04)),
    var(--service-detail-hero-image);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
}

.service-detail-hero-copy {
  width: min(100%, 1180px);
  margin: 0 auto;
  color: #fff;
}

.service-detail-hero-copy span {
  color: #8fdcff;
  font-weight: 700;
}

.service-detail-hero-copy h1 {
  margin: 18px 0 12px;
  font-size: clamp(46px, 7vw, 96px);
  line-height: 1;
  letter-spacing: 0;
}

.service-detail-hero-copy p {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(17px, 1.8vw, 24px);
}

.case-detail-section {
  min-height: auto;
}

.case-detail-section > div {
  max-width: 1320px;
  margin: 0 auto;
}

.case-detail-head {
  margin-bottom: 38px;
  text-align: center;
}

.case-detail-head span {
  color: #697386;
  font-weight: 700;
}

.case-detail-head h1 {
  margin: 10px 0 0;
  color: var(--blue);
  font-size: clamp(32px, 4vw, 56px);
}

.case-detail-head h1::after {
  content: "";
  display: block;
  width: 104px;
  height: 5px;
  margin: 22px auto 0;
  background: var(--blue);
}

.case-detail-media {
  margin: 0;
}

.case-detail-media img {
  width: 100%;
  box-shadow: 0 18px 50px rgba(16, 24, 40, 0.12);
}

.service-work-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 54px 52px;
}

.service-work-card {
  text-align: center;
}

.service-work-card img,
.service-work-placeholder {
  width: 100%;
  aspect-ratio: 1.08;
  object-fit: cover;
  background:
    linear-gradient(135deg, rgba(7, 63, 171, 0.24), rgba(52, 174, 228, 0.18)),
    #dbe6f5;
}

.service-work-card h3 {
  margin: 28px 0 8px;
  color: var(--ink);
  font-size: 22px;
}

.service-work-card p {
  margin: 0;
  color: #697386;
  font-weight: 700;
}

.contact-page-section {
  min-height: calc(100vh - 78px);
}

.contact-page-content {
  background: #fff;
}

.contact-page-intro {
  max-width: 1080px;
  margin: -18px auto 44px;
  color: #4b5563;
  font-size: clamp(16px, 1.25vw, 18px);
  line-height: 2;
  text-align: center;
}

.contact-page-intro p {
  margin: 0;
}

.contact-info-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  width: min(100%, 1120px);
  margin: 0 auto 54px;
}

.contact-info-panel p {
  min-height: 122px;
  margin: 0;
  padding: 26px 28px;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 14px 34px rgba(16, 24, 40, 0.05);
}

.contact-info-panel strong {
  display: block;
  margin-bottom: 10px;
  color: var(--blue);
  font-size: 18px;
}

.contact-info-panel span {
  color: #4b5563;
}

.contact-page-map {
  margin-top: 0;
  margin-bottom: 0;
}

.contact-page .contact-section {
  color: var(--ink);
  background: #fff;
}

.contact-page .contact-section .section-head p {
  color: #697386;
}

.contact-page .contact-section .section-head h2 {
  color: var(--blue);
}

.contact-page .contact-section .section-head h2::after {
  background: var(--blue);
}

.contact-page .map-panel {
  border-color: #fff;
  box-shadow: 0 18px 50px rgba(16, 24, 40, 0.12);
}

.contact-page .contact-card strong {
  color: var(--blue);
}

@media (max-width: 960px) {
  .menu-button {
    display: block;
  }

  .site-nav {
    position: absolute;
    inset: 78px 0 auto;
    display: none;
    padding: 18px;
    background: rgba(246, 248, 252, 0.98);
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav.open {
    display: flex;
  }

  .split-section {
    grid-template-columns: 1fr;
  }

  .home-hero {
    min-height: 58vw;
  }

  .hero-slide {
    background-size: 100% auto;
    background-position: center -6.25vw;
  }

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

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

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

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

@media (max-width: 640px) {
  .site-header {
    min-height: 66px;
    padding: 0 18px;
  }

  .site-nav {
    inset: 66px 0 auto;
  }

  .brand img {
    width: 132px;
    height: 50px;
  }

  .section {
    padding: 58px 18px;
  }

  .home-hero {
    min-height: 58vw;
  }

  .page-hero {
    min-height: 66vw;
    background-size: auto 100%;
    background-position: 32% center;
  }

  .service-grid,
  .case-grid,
  .job-grid,
  .partner-grid,
  .service-page-grid,
  .portfolio-grid,
  .service-work-grid {
    grid-template-columns: 1fr;
  }

  .breadcrumb {
    padding: 24px 18px;
  }

  .page-section {
    min-height: auto;
  }

  .portfolio-grid {
    gap: 34px;
  }

  .about-lines {
    padding-left: 18px;
  }

  .service-card {
    min-height: 310px;
    padding: 38px 24px;
  }

  .case-card {
    min-height: 300px;
  }

  .contact-card p {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .contact-info-panel {
    grid-template-columns: 1fr;
  }

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

  .partner-page-grid .partner-item {
    min-height: 96px;
  }

  .partner-note {
    text-align: left;
  }
}