:root {
  --ink: #172033;
  --ink-soft: #526071;
  --blue: #1f4f78;
  --blue-deep: #153852;
  --orange: #e06a34;
  --paper: #f7f8fa;
  --white: #ffffff;
  --line: #dfe4e8;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  right: 0;
  left: 0;
  border-bottom: 1px solid transparent;
  background: rgb(247 248 250 / 92%);
  backdrop-filter: blur(14px);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 10px 30px rgb(23 32 51 / 5%);
}

.header-inner {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
}

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

.brand-mark {
  display: grid;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  place-items: center;
  background: var(--blue);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
}

.brand-name {
  overflow: hidden;
  max-width: 320px;
  font-size: 15px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  color: #334155;
  font-size: 14px;
}

.site-nav a {
  transition: color 160ms ease;
}

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

.site-nav .nav-cta {
  padding: 11px 18px;
  background: var(--ink);
  color: var(--white);
}

.site-nav .nav-cta:hover {
  background: var(--orange);
  color: var(--white);
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  padding: 11px 9px;
  border: 0;
  background: transparent;
}

.menu-button span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 4px 0;
  background: var(--ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

.hero {
  padding: 130px 0 84px;
}

.hero-grid {
  display: grid;
  min-height: 625px;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  align-items: center;
  gap: 70px;
}

.hero-copy {
  padding: 28px 0;
}

.eyebrow,
.section-label {
  margin: 0 0 22px;
  color: var(--orange);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 600px;
  margin-bottom: 28px;
  font-size: clamp(48px, 5.6vw, 78px);
  font-weight: 700;
  line-height: 1.13;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 560px;
  margin-bottom: 38px;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 0 26px;
  font-size: 14px;
  font-weight: 600;
}

.button-primary {
  background: var(--orange);
  color: var(--white);
  transition: background 160ms ease, transform 160ms ease;
}

.button-primary:hover {
  background: #c95526;
  transform: translateY(-2px);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  font-weight: 600;
}

.text-link span {
  transition: transform 160ms ease;
}

.text-link:hover span {
  transform: translateX(4px);
}

.hero-media {
  position: relative;
  min-height: 570px;
  overflow: hidden;
  background: #dfe7ec;
}

.hero-media::after {
  position: absolute;
  inset: 0;
  background: rgb(21 56 82 / 16%);
  content: "";
  pointer-events: none;
}

.hero-media img {
  width: 100%;
  height: 570px;
  object-fit: cover;
  object-position: 53% center;
}

.hero-note {
  position: absolute;
  z-index: 1;
  right: 0;
  bottom: 0;
  display: flex;
  width: min(340px, 72%);
  min-height: 126px;
  align-items: flex-start;
  gap: 24px;
  padding: 27px 30px;
  background: var(--blue-deep);
  color: var(--white);
}

.hero-note-index {
  padding-top: 2px;
  color: #f0a37c;
  font-size: 12px;
  font-weight: 700;
}

.hero-note p {
  margin: 0;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.65;
}

.intro {
  padding: 110px 0;
  background: var(--white);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: 100px;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(32px, 4vw, 50px);
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: 0;
}

.intro-content {
  padding-top: 43px;
}

.intro-content p {
  margin-bottom: 20px;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.95;
}

.focus {
  padding: 110px 0;
}

.section-heading {
  display: grid;
  margin-bottom: 58px;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.48fr);
  align-items: end;
  gap: 70px;
}

.section-heading > p {
  margin: 0 0 5px;
  color: var(--ink-soft);
  line-height: 1.8;
}

.focus-list {
  border-top: 1px solid #cdd4da;
}

.focus-item {
  display: grid;
  min-height: 170px;
  padding: 38px 0;
  border-bottom: 1px solid #cdd4da;
  grid-template-columns: 90px minmax(0, 1fr) 150px;
  align-items: center;
  gap: 24px;
  transition: padding 180ms ease, background 180ms ease;
}

.focus-item:hover {
  padding-right: 20px;
  padding-left: 20px;
  background: var(--white);
}

.focus-number {
  color: var(--orange);
  font-size: 13px;
  font-weight: 700;
}

.focus-item h3 {
  margin-bottom: 10px;
  font-size: 25px;
  font-weight: 600;
}

.focus-item p {
  max-width: 600px;
  margin-bottom: 0;
  color: var(--ink-soft);
  line-height: 1.8;
}

.focus-tag {
  justify-self: end;
  color: #8a96a3;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
}

.approach {
  padding: 110px 0;
  background: var(--blue);
  color: var(--white);
}

.approach-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  gap: 110px;
}

.approach-copy > p:last-child {
  max-width: 450px;
  margin-top: 28px;
  color: #d6e1e9;
  line-height: 1.9;
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  min-height: 132px;
  padding: 30px 0;
  border-bottom: 1px solid rgb(255 255 255 / 24%);
  grid-template-columns: 65px 1fr;
  gap: 18px;
}

.steps li:first-child {
  padding-top: 0;
}

.steps > li > span {
  color: #f0a37c;
  font-size: 12px;
  font-weight: 700;
}

.steps h3 {
  margin-bottom: 9px;
  font-size: 21px;
  font-weight: 600;
}

.steps p {
  margin-bottom: 0;
  color: #d6e1e9;
  line-height: 1.7;
}

.contact {
  padding: 112px 0;
  background: #171d27;
  color: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.65fr);
  align-items: end;
  gap: 90px;
}

.section-label-light {
  color: #f0a37c;
}

.contact-details {
  padding-bottom: 7px;
  border-bottom: 1px solid #4a515d;
}

.contact-caption {
  margin-bottom: 13px;
  color: #9da5b0;
  font-size: 13px;
}

address {
  margin-bottom: 25px;
  font-size: 19px;
  font-style: normal;
  line-height: 1.7;
}

.copy-button {
  margin-bottom: 24px;
  padding: 0 0 6px;
  border: 0;
  border-bottom: 1px solid #9da5b0;
  color: var(--white);
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-size: 14px;
}

.copy-button:hover {
  border-color: #f0a37c;
  color: #f0a37c;
}

.site-footer {
  padding: 26px 0;
  background: #10151d;
  color: #88919d;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  font-size: 12px;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 920px) {
  .container {
    width: min(calc(100% - 36px), var(--max-width));
  }

  .menu-button {
    display: block;
    cursor: pointer;
  }

  .menu-button[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .menu-button[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-button[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .site-nav {
    position: absolute;
    top: 78px;
    right: 0;
    left: 0;
    display: none;
    padding: 18px;
    border-top: 1px solid var(--line);
    background: var(--paper);
    box-shadow: 0 20px 35px rgb(23 32 51 / 10%);
  }

  .site-nav.is-open {
    display: grid;
    gap: 0;
  }

  .site-nav a {
    padding: 15px 8px;
    border-bottom: 1px solid var(--line);
  }

  .site-nav .nav-cta {
    margin-top: 12px;
    border-bottom: 0;
    text-align: center;
  }

  .hero-grid,
  .intro-grid,
  .approach-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 45px;
  }

  .hero-media,
  .hero-media img {
    height: 520px;
    min-height: 520px;
  }

  .intro-grid,
  .approach-grid,
  .contact-grid {
    gap: 50px;
  }

  .intro-content {
    padding-top: 0;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 32px), var(--max-width));
  }

  .header-inner {
    min-height: 68px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    flex-basis: 36px;
    font-size: 12px;
  }

  .brand-name {
    max-width: 215px;
    font-size: 13px;
  }

  .site-nav {
    top: 68px;
  }

  .hero {
    padding: 104px 0 62px;
  }

  .hero-grid {
    min-height: 0;
    gap: 35px;
  }

  h1 {
    font-size: 43px;
  }

  h2 {
    font-size: 31px;
  }

  .hero-lead {
    font-size: 15px;
    line-height: 1.8;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 22px;
  }

  .hero-media,
  .hero-media img {
    height: 430px;
    min-height: 430px;
  }

  .hero-media img {
    object-position: 55% center;
  }

  .hero-note {
    width: 84%;
    min-height: 112px;
    padding: 23px 24px;
  }

  .hero-note p {
    font-size: 15px;
  }

  .intro,
  .focus,
  .approach,
  .contact {
    padding: 78px 0;
  }

  .section-heading {
    margin-bottom: 42px;
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .focus-item {
    min-height: 0;
    padding: 28px 0;
    grid-template-columns: 42px minmax(0, 1fr);
    align-items: start;
    gap: 12px;
  }

  .focus-item:hover {
    padding-right: 0;
    padding-left: 0;
    background: transparent;
  }

  .focus-number {
    padding-top: 7px;
  }

  .focus-item h3 {
    font-size: 21px;
  }

  .focus-tag {
    display: none;
  }

  .steps li {
    grid-template-columns: 48px 1fr;
  }

  .contact-grid {
    gap: 44px;
  }

  address {
    font-size: 17px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}