:root {
  color-scheme: light;
  --ink: #151a1f;
  --muted: #5d6874;
  --line: #dce2e8;
  --paper: #ffffff;
  --surface: #f4f7f8;
  --accent: #347fbd;
  --accent-dark: #28689d;
  --blue: #173f5f;
  --green: #16705a;
  --shadow: 0 18px 48px rgba(21, 26, 31, 0.12);
  --chrome-shadow: 0 1px 0 rgba(21, 26, 31, 0.06), 0 12px 34px rgba(21, 26, 31, 0.1);
  --footer-shadow: 0 -1px 0 rgba(21, 26, 31, 0.06), 0 -10px 28px rgba(21, 26, 31, 0.08);
  --header-height: 88px;
  --footer-height: 76px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding-bottom: var(--footer-height);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}

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

a {
  color: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  color: var(--ink);
  min-height: var(--header-height);
  background: #fff;
  border-bottom: 1px solid rgba(21, 26, 31, 0.06);
  box-shadow: var(--chrome-shadow);
  transition: background 180ms ease, box-shadow 180ms ease, color 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  color: var(--ink);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  min-height: 64px;
  padding: 8px 14px;
  margin: -8px -14px;
  text-decoration: none;
  font-weight: 800;
  touch-action: manipulation;
}

.brand-logo {
  width: auto;
  height: 52px;
  max-width: min(310px, 46vw);
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 1.9vw, 26px);
  font-size: 0.9rem;
  font-weight: 700;
}

.site-nav a {
  text-decoration: none;
}

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

.site-nav > a[aria-current="page"] {
  color: var(--accent);
}

.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 850;
}

.language-switcher a {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 5px 8px;
  color: var(--muted);
  text-decoration: none;
}

.language-switcher a:hover,
.language-switcher a[aria-current="true"] {
  color: var(--accent);
  background: #fff;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid currentColor;
  background: transparent;
  color: inherit;
  padding: 10px;
}

.nav-toggle span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: calc(92svh + var(--header-height));
  display: grid;
  align-items: end;
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero picture,
.hero img,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero img {
  object-fit: cover;
}

.hero-overlay {
  background: linear-gradient(90deg, rgba(11, 18, 24, 0.82), rgba(11, 18, 24, 0.38) 58%, rgba(11, 18, 24, 0.14));
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, calc(100% - 36px));
  margin: 0 clamp(18px, 7vw, 90px) calc(10vh + var(--footer-height));
  color: #fff;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #c7e6ff;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(3rem, 7.2vw, 6.3rem);
  line-height: 0.98;
  letter-spacing: 0;
  max-width: 10ch;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.03;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
  line-height: 1.2;
}

.hero-lede {
  max-width: 650px;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1.08rem, 1.8vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 850;
}

.button-primary {
  color: #fff;
  background: var(--accent);
}

.button-primary:hover {
  background: var(--accent-dark);
}

.button-secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.68);
}

.button-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

.text-link {
  display: inline-flex;
  margin-top: 22px;
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 900;
  text-decoration: none;
}

.text-link::after {
  content: ">";
  margin-left: 8px;
}

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

.section {
  padding: clamp(76px, 9vw, 128px) clamp(18px, 5vw, 72px);
}

.page-hero {
  padding: calc(var(--header-height) + clamp(88px, 10vw, 138px)) clamp(18px, 7vw, 90px) clamp(72px, 9vw, 118px);
  background: var(--surface);
}

.page-hero h1 {
  max-width: 12ch;
  color: var(--ink);
}

.page-hero p {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.8vw, 1.32rem);
}

.page-hero .button {
  margin-top: 16px;
}

.page-hero .button-secondary {
  color: var(--accent);
  border-color: var(--accent);
}

.page-hero .button-secondary:hover {
  color: #fff;
  background: var(--accent);
}

.intro {
  background: var(--surface);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.trust-strip div {
  display: grid;
  gap: 4px;
  min-height: 112px;
  padding: 24px clamp(18px, 4vw, 42px);
  border-right: 1px solid var(--line);
}

.trust-strip div:last-child {
  border-right: 0;
}

.trust-strip strong {
  color: var(--accent);
  font-size: 1.1rem;
}

.trust-strip span {
  color: var(--muted);
  font-size: 0.94rem;
}

.about-company {
  background: #fff;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.78fr);
  gap: clamp(34px, 7vw, 92px);
  align-items: start;
}

.about-copy p {
  color: var(--muted);
  font-size: 1.08rem;
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.fact-grid div {
  min-height: 120px;
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.fact-grid strong {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 1rem;
}

.fact-grid span {
  color: var(--muted);
  font-size: 0.94rem;
}

.intro-grid,
.section-heading,
.benefits,
.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.72fr);
  gap: clamp(28px, 6vw, 84px);
  align-items: start;
}

.intro-grid p,
.section-heading p,
.benefit-copy p,
.contact p {
  color: var(--muted);
  font-size: 1.08rem;
}

.services {
  background: #fff;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.service-grid article {
  min-height: 280px;
  padding: 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.service-icon {
  display: block;
  width: 42px;
  height: 42px;
  margin-bottom: 22px;
  color: var(--accent);
}

.service-grid article:hover {
  background: #fafafa;
}

.service-grid p,
.benefit-list p {
  color: var(--muted);
  margin-bottom: 0;
}

.service-page-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(300px, 0.8fr);
  gap: clamp(30px, 6vw, 80px);
  background: #fff;
}

.service-copy p {
  color: var(--muted);
  font-size: 1.08rem;
}

.service-copy p:last-child {
  margin-bottom: 0;
}

.service-detail {
  background: var(--surface);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.detail-grid article {
  min-height: 230px;
  padding: 28px;
  background: #fff;
}

.detail-grid p {
  color: var(--muted);
  margin-bottom: 0;
}

.service-advisory {
  background: #fff;
}

.advisory-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.advisory-grid article {
  padding: 28px;
  background: #fff;
}

.advisory-grid h3 {
  color: var(--accent);
}

.advisory-grid ul {
  display: grid;
  gap: 10px;
  padding-left: 18px;
  margin: 18px 0 0;
  color: var(--muted);
}

.next-step {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) auto;
  gap: clamp(22px, 4vw, 54px);
  align-items: center;
  background: var(--blue);
  color: #fff;
}

.next-step h2 {
  margin-bottom: 12px;
}

.next-step p {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 0;
}

.quote-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(300px, 0.7fr);
  gap: clamp(26px, 5vw, 68px);
  align-items: start;
  background: var(--ink);
  color: #fff;
}

.quote-panel .section-kicker {
  color: #c7e6ff;
}

.quote-panel p {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.08rem;
}

.quote-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.quote-list li {
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: rgba(255, 255, 255, 0.88);
  font-weight: 750;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(34px, 6vw, 80px);
  align-items: center;
  background: var(--ink);
  color: #fff;
}

.split-media {
  min-height: 520px;
  overflow: hidden;
}

.split-media picture {
  display: block;
  width: 100%;
  height: 100%;
}

.split-media img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
}

.split-content p,
.split-content li {
  color: rgba(255, 255, 255, 0.78);
}

.check-list {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 26px;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 0.68em;
  left: 0;
  width: 10px;
  height: 10px;
  background: var(--accent);
}

.industries {
  background: var(--surface);
}

.industry-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.industry-grid span {
  display: flex;
  align-items: center;
  min-height: 74px;
  padding: 16px;
  background: #fff;
  border: 1px solid var(--line);
  font-weight: 800;
}

.benefits {
  background: #fff;
}

.process {
  background: #fff;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.process-grid article {
  min-height: 260px;
  padding: 28px;
  background: #fff;
}

.process-grid span {
  display: block;
  margin-bottom: 58px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 900;
}

.process-grid p {
  color: var(--muted);
  margin-bottom: 0;
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.workflow-grid article {
  min-height: 286px;
  padding: 28px;
  background: #fff;
}

.workflow-grid span {
  display: block;
  margin-bottom: 38px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 900;
}

.workflow-grid p {
  color: var(--muted);
  margin-bottom: 0;
}

.benefit-list {
  display: grid;
  gap: 18px;
}

.benefit-list article {
  padding: 0 0 22px;
  border-bottom: 1px solid var(--line);
}

.faq {
  background: var(--surface);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  background: #fff;
  border: 1px solid var(--line);
}

.faq-list summary {
  cursor: pointer;
  padding: 22px 24px;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 850;
}

.faq-list summary::marker {
  color: var(--accent);
}

.faq-list p {
  max-width: 860px;
  padding: 0 24px 24px;
  color: var(--muted);
  margin-bottom: 0;
}

.contact {
  background: var(--blue);
  color: #fff;
}

.contact .section-kicker {
  color: #a7d8cb;
}

.contact p {
  color: rgba(255, 255, 255, 0.78);
}

.contact-card {
  display: grid;
  gap: 10px;
  padding: clamp(24px, 4vw, 38px);
  background: #fff;
  color: var(--ink);
  box-shadow: var(--shadow);
  font-style: normal;
}

.contact-card strong {
  font-size: 1.2rem;
}

.contact-card a {
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.wechat-qr {
  width: 128px;
  height: 128px;
  margin: 4px 0 8px;
  padding: 8px;
  border: 1px solid var(--line);
  background: #fff;
  object-fit: contain;
}

.site-footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 18;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  min-height: var(--footer-height);
  padding: 16px clamp(18px, 4vw, 56px);
  color: var(--ink);
  background: #fff;
  border-top: 1px solid rgba(21, 26, 31, 0.08);
  box-shadow: var(--footer-shadow);
  font-size: 0.92rem;
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 800;
}

.legal-page {
  background: #fff;
}

.legal-card {
  display: grid;
  gap: 10px;
  max-width: 720px;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--line);
  color: var(--ink);
  font-style: normal;
}

.legal-card strong {
  font-size: 1.2rem;
}

.legal-card a {
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.legal-content {
  max-width: 880px;
}

.legal-content h2 {
  margin-top: 38px;
  font-size: clamp(1.45rem, 2.4vw, 2.1rem);
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p {
  color: var(--muted);
  font-size: 1.05rem;
}

.legal-content a {
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.knowledge-card {
  display: grid;
  align-content: start;
  gap: 18px;
  min-height: 300px;
  padding: 28px;
  background: #fff;
  color: var(--ink);
  text-decoration: none;
}

.knowledge-card:hover {
  background: var(--surface);
}

.knowledge-card span {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.knowledge-card p {
  color: var(--muted);
  margin-bottom: 0;
}

.guide-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.74fr) minmax(280px, 0.26fr);
  gap: clamp(32px, 6vw, 82px);
  align-items: start;
  background: #fff;
}

.guide-content {
  max-width: 880px;
}

.guide-content h2 {
  margin-top: 52px;
  font-size: clamp(1.7rem, 3vw, 2.7rem);
}

.guide-content h2:first-child {
  margin-top: 0;
}

.guide-content p,
.guide-content li {
  color: var(--muted);
  font-size: 1.06rem;
}

.guide-content ul {
  display: grid;
  gap: 10px;
  padding-left: 20px;
}

.guide-aside {
  position: sticky;
  top: calc(var(--header-height) + 28px);
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.guide-aside strong {
  color: var(--ink);
}

.guide-aside a {
  color: var(--accent);
  font-weight: 850;
  text-decoration: none;
}

.inquiry-section {
  background: #fff;
}

.inquiry-form {
  max-width: 1040px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.inquiry-form label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 850;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}

.inquiry-form textarea {
  resize: vertical;
}

.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus {
  outline: 2px solid rgba(52, 127, 189, 0.28);
  border-color: var(--accent);
  background: #fff;
}

.full-span {
  grid-column: 1 / -1;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 26px;
}

.form-actions p {
  max-width: 620px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 980px) {
  .service-grid,
  .industry-grid,
  .trust-strip,
  .process-grid,
  .workflow-grid,
  .detail-grid,
  .advisory-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .intro-grid,
  .section-heading,
  .service-page-grid,
  .next-step,
  .about-grid,
  .quote-panel,
  .guide-layout,
  .benefits,
  .contact,
  .split {
    grid-template-columns: 1fr;
  }

  .split-media,
  .split-media img {
    min-height: 360px;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 76px;
    --footer-height: 96px;
  }

  .site-header {
    padding: 14px 18px;
  }

  .brand-logo {
    height: 44px;
    max-width: 210px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(var(--header-height) + 8px);
    left: 18px;
    right: 18px;
    display: none;
    padding: 18px;
    background: #fff;
    color: var(--ink);
    box-shadow: var(--shadow);
  }

  .site-header.is-open .site-nav {
    display: grid;
    gap: 16px;
  }

  .language-switcher {
    padding-top: 8px;
    padding-left: 0;
    border-top: 1px solid var(--line);
    background: #fff;
    border-right: 0;
    border-bottom: 0;
    border-left: 0;
  }

  .hero {
    min-height: calc(88svh + var(--header-height));
  }

  .hero-content {
    margin-bottom: calc(8vh + var(--footer-height));
  }

  .hero-overlay {
    background: linear-gradient(180deg, rgba(11, 18, 24, 0.28), rgba(11, 18, 24, 0.84));
  }

  h1 {
    max-width: 9ch;
  }
}

@media (max-width: 560px) {
  :root {
    --footer-height: 0px;
  }

  .service-grid,
  .industry-grid,
  .knowledge-grid,
  .trust-strip,
  .process-grid,
  .workflow-grid,
  .detail-grid,
  .advisory-grid,
  .fact-grid {
    grid-template-columns: 1fr;
  }

  .trust-strip div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .trust-strip div:last-child {
    border-bottom: 0;
  }

  .service-grid article {
    min-height: auto;
  }

  .process-grid article {
    min-height: auto;
  }

  .workflow-grid article {
    min-height: auto;
  }

  .detail-grid article {
    min-height: auto;
  }

  .knowledge-card {
    min-height: auto;
  }

  .guide-aside {
    position: static;
  }

  .process-grid span {
    margin-bottom: 28px;
  }

  .workflow-grid span {
    margin-bottom: 28px;
  }

  .site-footer {
    position: static;
    display: grid;
    gap: 4px;
    padding: 14px 18px;
  }

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