:root {
  --bg: #ffffff;
  --ink: #121417;
  --muted: #62686f;
  --soft: #f4f5f6;
  --line: #d9dde1;
  --charcoal: #111316;
  --red: #d70813;
  --red-dark: #a9040c;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(17, 19, 22, 0.15);
  --max: 1180px;
  --header: 92px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

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

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: var(--header);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 30px;
  padding: 16px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(18, 20, 23, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 180px;
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.brand img {
  width: 62px;
  height: auto;
}

.main-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 28px;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.main-nav a {
  position: relative;
  padding: 8px 0;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--red);
  transition: right 180ms ease;
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  right: 0;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 24px;
  color: var(--white);
  background: var(--red);
  font-size: 13px;
  font-weight: 800;
  box-shadow: 0 12px 30px rgba(215, 8, 19, 0.24);
}

.hero {
  position: relative;
  min-height: calc(100vh - var(--header));
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: #090b0e;
}

.hero-media {
  position: absolute;
  inset: 0;
}

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

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 6, 8, 0.86) 0%, rgba(5, 6, 8, 0.62) 38%, rgba(5, 6, 8, 0.08) 76%),
    linear-gradient(0deg, rgba(5, 6, 8, 0.54) 0%, rgba(5, 6, 8, 0.02) 30%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(720px, calc(100% - 40px));
  margin-left: clamp(24px, 7vw, 84px);
  padding: 72px 0 110px;
}

.hero-content h1 {
  margin-bottom: 24px;
  font-size: clamp(58px, 7vw, 94px);
  line-height: 0.93;
  font-weight: 900;
  letter-spacing: 0;
  white-space: nowrap;
}

.hero-content h1::after {
  content: "";
  display: block;
  width: 132px;
  height: 4px;
  margin-top: 22px;
  background: var(--red);
}

.hero-content p {
  max-width: 620px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(19px, 2.2vw, 27px);
  line-height: 1.42;
  font-weight: 500;
}

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

.primary-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding: 0 24px;
  color: var(--white);
  background: var(--red);
  font-size: 15px;
  font-weight: 800;
  box-shadow: 0 20px 42px rgba(215, 8, 19, 0.3);
  transition: transform 180ms ease, background 180ms ease;
}

.primary-button:hover,
.primary-button:focus-visible {
  background: var(--red-dark);
  transform: translateY(-2px);
}

.primary-button svg,
.scroll-cue svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.founded {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 24px;
  z-index: 2;
  display: grid;
  justify-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.82);
  transform: translateX(-50%);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.scroll-cue::before {
  content: "";
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.58);
}

.section-pad {
  padding: clamp(72px, 9vw, 118px) clamp(20px, 5vw, 72px);
}

.section-heading {
  max-width: 720px;
}

.section-heading.center {
  margin-inline: auto;
  text-align: center;
}

.section-label {
  margin-bottom: 18px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(34px, 4.2vw, 58px);
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: 0;
}

.intro {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(38px, 8vw, 110px);
  max-width: var(--max);
  margin-inline: auto;
  border-bottom: 1px solid var(--line);
}

.intro-copy {
  display: grid;
  gap: 24px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.72;
}

.intro-copy p {
  margin-bottom: 0;
}

.services {
  background:
    linear-gradient(180deg, #ffffff 0%, #ffffff 62%, #f6f7f8 100%);
}

.service-grid {
  width: min(var(--max), 100%);
  margin: 58px auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--white);
  border: 1px solid rgba(18, 20, 23, 0.12);
  box-shadow: 0 18px 46px rgba(18, 20, 23, 0.08);
}

.service-card img {
  width: 100%;
  aspect-ratio: 1.32;
  object-fit: cover;
}

.service-body {
  padding: 30px 30px 34px;
}

.service-number {
  margin-bottom: 14px;
  color: var(--red);
  font-size: 46px;
  line-height: 0.9;
  font-weight: 300;
}

.service-number::after {
  content: "";
  display: block;
  width: 48px;
  height: 2px;
  margin-top: 12px;
  background: var(--red);
}

.service-card h3 {
  min-height: 70px;
  margin-bottom: 18px;
  font-size: 23px;
  line-height: 1.16;
  font-weight: 900;
}

.service-card p {
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.62;
}

.service-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: #2f3439;
  font-size: 14px;
  line-height: 1.35;
  font-weight: 700;
}

.service-card li {
  position: relative;
  padding-left: 16px;
}

.service-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--red);
}

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

.education-panel {
  width: min(var(--max), 100%);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(290px, 0.92fr) minmax(340px, 1.08fr);
  gap: clamp(36px, 7vw, 86px);
  padding: clamp(36px, 5vw, 58px);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.78)),
    repeating-linear-gradient(90deg, rgba(18, 20, 23, 0.07) 0 1px, transparent 1px 72px);
  border-left: 5px solid var(--red);
  box-shadow: var(--shadow);
}

.education-copy > p {
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.68;
}

.education-list {
  display: grid;
  gap: 22px;
}

.education-list div {
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.education-list h3 {
  margin-bottom: 8px;
  font-size: 19px;
  line-height: 1.2;
  font-weight: 900;
}

.education-list p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.58;
}

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

.region-strip {
  position: relative;
  width: min(var(--max), 100%);
  margin: 50px auto 0;
  overflow: hidden;
  background: #101215;
  box-shadow: 0 18px 48px rgba(18, 20, 23, 0.14);
}

.region-strip img {
  width: 100%;
  aspect-ratio: 2.9;
  object-fit: cover;
}

.region-strip::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 44%;
  background: linear-gradient(0deg, rgba(6, 7, 8, 0.82), rgba(6, 7, 8, 0));
  pointer-events: none;
}

.region-labels {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  color: var(--white);
}

.region-labels span {
  display: flex;
  align-items: end;
  min-height: 86px;
  padding: 0 16px 20px;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
  font-size: clamp(14px, 1.5vw, 23px);
  line-height: 1.1;
  font-weight: 900;
  text-shadow: 0 3px 12px rgba(0, 0, 0, 0.48);
}

.region-labels span:last-child {
  border-right: 0;
}

.network-note {
  max-width: 820px;
  margin: 34px auto 0;
  color: var(--muted);
  text-align: center;
  font-size: 17px;
  line-height: 1.7;
}

.approach {
  background: linear-gradient(180deg, #f6f7f8 0%, #ffffff 44%);
}

.approach-steps {
  width: min(var(--max), 100%);
  margin: 58px auto 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 22px;
}

.approach-steps article {
  position: relative;
  text-align: center;
}

.approach-steps article:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 28px;
  right: -18px;
  width: 28px;
  height: 2px;
  background: var(--red);
}

.step-icon {
  display: inline-grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin-bottom: 24px;
  color: var(--ink);
  border: 1px solid transparent;
}

.step-icon::before,
.step-icon::after {
  content: "";
  display: block;
}

.target-icon {
  border-color: var(--ink);
  border-radius: 50%;
  background:
    linear-gradient(var(--ink), var(--ink)) center / 1px 100% no-repeat,
    linear-gradient(90deg, var(--ink), var(--ink)) center / 100% 1px no-repeat;
}

.target-icon::before {
  width: 16px;
  height: 16px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--white);
}

.people-icon {
  gap: 6px;
  grid-template-columns: repeat(2, 1fr);
}

.people-icon::before,
.people-icon::after {
  width: 19px;
  height: 36px;
  border: 2px solid var(--ink);
  border-bottom: 0;
  border-radius: 18px 18px 0 0;
}

.megaphone-icon {
  position: relative;
}

.megaphone-icon::before {
  width: 38px;
  height: 26px;
  border: 2px solid var(--ink);
  clip-path: polygon(0 25%, 66% 0, 66% 100%, 0 75%);
}

.megaphone-icon::after {
  position: absolute;
  right: 6px;
  width: 10px;
  height: 22px;
  border-right: 2px solid var(--ink);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.booth-icon {
  position: relative;
  border-bottom: 2px solid var(--ink);
}

.booth-icon::before {
  width: 42px;
  height: 24px;
  border: 2px solid var(--ink);
  border-top: 0;
  background: linear-gradient(90deg, transparent 0 33%, var(--ink) 33% 35%, transparent 35% 66%, var(--ink) 66% 68%, transparent 68%);
}

.booth-icon::after {
  position: absolute;
  top: 6px;
  width: 44px;
  height: 12px;
  border: 2px solid var(--ink);
  border-bottom: 0;
}

.globe-icon {
  border: 2px solid var(--ink);
  border-radius: 50%;
  background:
    linear-gradient(var(--ink), var(--ink)) center / 1px 100% no-repeat,
    linear-gradient(90deg, var(--ink), var(--ink)) center / 100% 1px no-repeat;
}

.globe-icon::before {
  width: 28px;
  height: 56px;
  border-left: 1px solid var(--ink);
  border-right: 1px solid var(--ink);
  border-radius: 50%;
}

.approach-steps h3 {
  margin-bottom: 12px;
  font-size: 18px;
  line-height: 1.24;
  font-weight: 900;
}

.approach-steps p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.54;
}

.site-footer {
  color: rgba(255, 255, 255, 0.82);
  background:
    radial-gradient(circle at 10% 0%, rgba(255, 255, 255, 0.08), transparent 34%),
    linear-gradient(135deg, #111316 0%, #1a1d20 100%);
}

.footer-inner {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 1.15fr 0.82fr 1.08fr;
  gap: 40px;
  padding: 64px 0 44px;
}

.footer-brand img {
  width: 110px;
  margin-bottom: 20px;
  filter: invert(1) grayscale(1) contrast(1.15);
}

.footer-brand p,
.footer-column p,
.footer-column address {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  line-height: 1.65;
  font-style: normal;
}

.footer-column {
  padding-left: 32px;
  border-left: 1px solid rgba(255, 255, 255, 0.18);
}

.footer-column h2 {
  margin-bottom: 18px;
  color: #ff3340;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.footer-column a {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
}

.cn-address {
  margin-top: 10px;
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

.company-name {
  color: var(--white) !important;
  font-size: 19px !important;
}

.company-info dl {
  margin: 18px 0 0;
}

.company-info dt {
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.55);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.company-info dd {
  margin: 4px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
}

.copyright {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 18px 0 22px;
  color: rgba(255, 255, 255, 0.46);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  text-align: center;
  font-size: 12px;
}

@media (max-width: 1100px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .main-nav {
    grid-column: 1 / -1;
    order: 3;
    justify-content: flex-start;
    gap: 20px;
  }

  .service-grid {
    grid-template-columns: 1fr;
    max-width: 720px;
  }

  .service-card {
    display: grid;
    grid-template-columns: 0.92fr 1.08fr;
  }

  .service-card img {
    height: 100%;
    aspect-ratio: auto;
  }

  .approach-steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .approach-steps article::after {
    display: none;
  }

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

@media (max-width: 780px) {
  :root {
    --header: 82px;
  }

  .site-header {
    position: relative;
    min-height: auto;
    gap: 18px;
    padding: 14px 18px 18px;
  }

  .brand {
    min-width: 0;
  }

  .brand img {
    width: 52px;
  }

  .brand span {
    font-size: 12px;
  }

  .header-cta {
    min-height: 38px;
    padding: 0 13px;
    font-size: 11px;
  }

  .main-nav {
    gap: 12px 16px;
    font-size: 10px;
  }

  .hero {
    min-height: 680px;
  }

  .hero-media img {
    object-position: 64% center;
  }

  .hero-media::after {
    background:
      linear-gradient(90deg, rgba(5, 6, 8, 0.9) 0%, rgba(5, 6, 8, 0.7) 54%, rgba(5, 6, 8, 0.24) 100%),
      linear-gradient(0deg, rgba(5, 6, 8, 0.7) 0%, rgba(5, 6, 8, 0.08) 42%);
  }

  .hero-content {
    width: calc(100% - 36px);
    margin-left: 18px;
    padding-top: 58px;
  }

  .hero-content h1 {
    font-size: clamp(48px, 16vw, 72px);
    white-space: normal;
  }

  .hero-content p {
    font-size: 18px;
  }

  .primary-button {
    width: 100%;
    justify-content: center;
    padding: 0 16px;
    font-size: 14px;
  }

  .intro,
  .education-panel {
    grid-template-columns: 1fr;
  }

  .section-heading h2 {
    font-size: clamp(31px, 9vw, 42px);
  }

  .service-card {
    display: block;
  }

  .service-card img {
    height: auto;
    aspect-ratio: 1.32;
  }

  .service-card h3 {
    min-height: 0;
  }

  .region-strip img {
    aspect-ratio: 1.25;
  }

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

  .region-labels span {
    min-height: 52px;
    padding: 0 12px 12px;
    font-size: 15px;
  }

  .approach-steps {
    grid-template-columns: 1fr;
    max-width: 420px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-column {
    padding-left: 0;
    padding-top: 26px;
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
  }
}

@media (max-width: 460px) {
  .site-header {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  .brand,
  .header-cta {
    align-self: flex-start;
  }

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

  .hero {
    min-height: 720px;
  }

  .founded {
    line-height: 1.45;
  }

  .service-body,
  .education-panel {
    padding: 26px 22px;
  }

  .section-pad {
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}