@charset "UTF-8";

:root {
  --ink: #12233f;
  --muted: #5e7187;
  --paper: #f6faff;
  --white: #ffffff;
  --blue: #156db5;
  --blue-dark: #0a2f56;
  --blue-soft: #eaf5ff;
  --accent: #49a4ea;
  --line: rgba(18, 35, 63, 0.12);
  --shadow: 0 20px 60px rgba(14, 66, 122, 0.14);
  --radius: 22px;
  --shell: min(1180px, calc(100% - 48px));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
summary {
  font: inherit;
}

main {
  overflow: clip;
}

.section-shell {
  width: var(--shell);
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(18, 35, 63, 0.08);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-name {
  white-space: nowrap;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.desktop-nav a {
  position: relative;
  padding: 27px 0 24px;
  color: #405974;
  font-size: 14px;
  font-weight: 700;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 18px;
  left: 0;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
}

.desktop-nav a:hover::after,
.desktop-nav a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.mobile-nav {
  display: none;
}

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  isolation: isolate;
  padding: 140px max(24px, calc((100vw - 1180px) / 2)) 100px;
  background:
    radial-gradient(circle at 82% 28%, rgba(73, 164, 234, 0.22), transparent 20%),
    radial-gradient(circle at 80% 68%, rgba(21, 109, 181, 0.18), transparent 32%),
    linear-gradient(120deg, #f9fcff 0%, #e9f4fd 50%, #d7ebfa 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 76px 0 0;
  z-index: -2;
  background:
    linear-gradient(rgba(255,255,255,.15), rgba(255,255,255,.15)),
    repeating-linear-gradient(90deg, transparent 0 79px, rgba(21, 109, 181, 0.05) 80px);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(255,255,255,.55), rgba(255,255,255,.08) 62%, rgba(255,255,255,0) 100%);
}

.hero-grid {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  align-items: center;
  gap: clamp(36px, 5vw, 72px);
}

.hero-content {
  width: 100%;
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.hero-logo-card {
  width: min(100%, 420px);
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  padding: clamp(26px, 5vw, 44px);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(21, 109, 181, 0.14);
  box-shadow: var(--shadow);
}

.hero-logo-card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.eyebrow,
.overline {
  margin: 0 0 22px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
}

.eyebrow > span {
  width: 32px;
  height: 2px;
  background: var(--accent);
}

.hero h1 {
  margin: 0;
  max-width: 900px;
  font-size: clamp(54px, 6.6vw, 100px);
  font-weight: 900;
  letter-spacing: -0.07em;
  line-height: 1.02;
  color: var(--blue-dark);
}

.hero-subtitle {
  margin: 28px 0 0;
  color: #43607c;
  font-size: clamp(16px, 1.5vw, 21px);
  letter-spacing: 0.08em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 0 24px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button--primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue) 0%, #0f5fa0 100%);
  box-shadow: 0 12px 30px rgba(21, 109, 181, 0.18);
}

.button--outline {
  color: var(--blue-dark);
  border-color: rgba(21, 109, 181, 0.28);
  background: rgba(255,255,255,.36);
}

.scroll-cue {
  position: absolute;
  right: max(24px, calc((100vw - 1180px) / 2));
  bottom: 34px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #4f6f90;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.scroll-cue i {
  width: 52px;
  height: 1px;
  background: currentColor;
}

.about,
.advantage {
  padding-block: 120px;
}

.about-grid,
.section-heading,
.contact-grid,
.promise-inner {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(48px, 8vw, 120px);
}

h2 {
  margin: 0;
  font-size: clamp(38px, 4.3vw, 64px);
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.about-copy .lead {
  margin-top: 0;
  color: var(--ink);
  font-size: 20px;
  font-weight: 700;
}

.about-copy > p:not(.lead) {
  color: var(--muted);
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 42px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.facts div {
  display: grid;
  gap: 4px;
}

.facts strong {
  color: var(--blue);
  font-size: 32px;
  line-height: 1;
}

.facts span {
  color: var(--muted);
  font-size: 13px;
}

.services {
  padding-block: 120px;
  color: var(--white);
  background:
    radial-gradient(circle at 85% 15%, rgba(73, 164, 234, 0.18), transparent 25%),
    linear-gradient(140deg, #0a2f56 0%, #0e4576 100%);
}

.section-heading {
  align-items: end;
  margin-bottom: 60px;
}

.section-heading > p {
  margin: 0;
  align-self: end;
  color: var(--muted);
}

.section-heading.light > p {
  color: rgba(255,255,255,.72);
}

.section-heading.light h2,
.section-heading.light .overline {
  color: var(--white);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255,255,255,.16);
  border-left: 1px solid rgba(255,255,255,.16);
}

.service-card {
  min-height: 390px;
  display: flex;
  flex-direction: column;
  padding: 34px 30px;
  border-right: 1px solid rgba(255,255,255,.16);
  border-bottom: 1px solid rgba(255,255,255,.16);
  transition: background 0.25s ease, transform 0.25s ease;
}

.service-card:hover {
  background: rgba(255,255,255,.06);
  transform: translateY(-6px);
}

.service-card > span {
  color: #9ed7ff;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.service-card h3 {
  margin: 76px 0 20px;
  font-size: 24px;
  line-height: 1.25;
}

.service-card p {
  margin: 0;
  color: rgba(255,255,255,.72);
}

.service-card a {
  margin-top: auto;
  color: #9ed7ff;
  font-weight: 800;
}

.service-card i {
  margin-left: 8px;
  font-style: normal;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 38px;
  border-top: 1px solid var(--line);
}

.process-grid article {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 20px;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.process-grid article > span {
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
}

.process-grid h3 {
  margin: 0 0 8px;
  font-size: 24px;
}

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

.promise {
  padding-block: 86px;
  background: var(--white);
  border-block: 1px solid var(--line);
}

.promise-inner {
  grid-template-columns: 140px 1fr 0.9fr;
  align-items: center;
  gap: 46px;
}

.lion-mark {
  width: 130px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(21, 109, 181, 0.14);
  border-radius: 0;
  background: var(--white);
  box-shadow: var(--shadow);
}

.lion-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #ffffff;
}

.promise blockquote {
  margin: 0;
  font-size: clamp(30px, 3.5vw, 50px);
  font-weight: 900;
  letter-spacing: -0.035em;
  line-height: 1.15;
  color: var(--blue-dark);
}

.promise-inner > p {
  margin: 0;
  color: var(--muted);
}

.contact {
  padding-block: 120px;
  color: var(--white);
  background:
    radial-gradient(circle at 15% 10%, rgba(73, 164, 234, .18), transparent 24%),
    linear-gradient(145deg, #082743 0%, #0d416f 100%);
}

.contact .overline {
  color: #9ed7ff;
}

.contact-card {
  padding: 40px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
}

.contact-card > p {
  margin-top: 0;
  color: rgba(255,255,255,.76);
}

.contact-card dl {
  margin: 38px 0 0;
}

.contact-card dl > div {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 18px;
  padding: 17px 0;
  border-top: 1px solid rgba(255,255,255,.12);
}

.contact-card dt {
  color: rgba(255,255,255,.56);
  font-size: 13px;
}

.contact-card dd {
  margin: 0;
}

footer {
  color: rgba(255,255,255,.78);
  background: #061a2e;
}

.footer-main,
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 30px;
}

.footer-main {
  align-items: flex-start;
  padding-block: 52px;
}

.footer-main p {
  margin: 0;
  font-size: 13px;
  text-align: right;
}

.footer-brand {
  color: var(--white);
}

.footer-bottom {
  padding-block: 20px;
  border-top: 1px solid rgba(255,255,255,.10);
  font-size: 12px;
}

@media (max-width: 1100px) {
  .desktop-nav {
    gap: 20px;
  }

  .hero-grid {
    grid-template-columns: 1fr 360px;
    gap: 36px;
  }

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

@media (max-width: 900px) {
  :root {
    --shell: min(100% - 32px, 720px);
  }

  html {
    scroll-padding-top: 68px;
  }

  .site-header {
    min-height: 68px;
    padding-inline: 16px;
  }

  .brand-name {
    max-width: 68vw;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 14px;
  }

  .desktop-nav {
    display: none;
  }

  .mobile-nav {
    position: relative;
    display: block;
  }

  .mobile-nav summary {
    width: 44px;
    height: 44px;
    display: grid;
    place-content: center;
    gap: 5px;
    cursor: pointer;
    list-style: none;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: var(--white);
  }

  .mobile-nav summary::-webkit-details-marker {
    display: none;
  }

  .mobile-nav summary::marker {
    content: "";
  }

  .mobile-nav summary span {
    width: 18px;
    height: 2px;
    display: block;
    background: var(--ink);
    transition: transform .22s ease, opacity .22s ease;
  }

  .mobile-nav[open] summary span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .mobile-nav[open] summary span:nth-child(2) {
    opacity: 0;
  }

  .mobile-nav[open] summary span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .mobile-nav nav {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    width: min(82vw, 320px);
    display: grid;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255,255,255,.98);
    box-shadow: var(--shadow);
  }

  .mobile-nav nav a {
    padding: 13px 14px;
    border-radius: 10px;
    color: var(--ink);
    font-size: 14px;
    font-weight: 700;
  }

  .mobile-nav nav a:hover {
    background: var(--blue-soft);
  }

  .hero {
    min-height: auto;
    padding-top: 116px;
    padding-bottom: 80px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .hero-visual {
    justify-content: flex-start;
  }

  .hero-logo-card {
    width: min(62vw, 280px);
  }

  .about-grid,
  .section-heading,
  .contact-grid,
  .promise-inner {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .about,
  .advantage,
  .services,
  .contact {
    padding-block: 86px;
  }

  .section-heading {
    margin-bottom: 44px;
  }

  .promise-inner {
    grid-template-columns: 100px 1fr;
  }

  .promise-inner > p {
    grid-column: 1 / -1;
  }

  .lion-mark {
    width: 96px;
  }
}

@media (max-width: 640px) {
  :root {
    --shell: calc(100% - 28px);
  }

  .hero {
    padding-inline: 14px;
  }

  .hero h1 {
    font-size: clamp(42px, 12.6vw, 64px);
    line-height: 1.04;
  }

  .hero-subtitle {
    line-height: 1.9;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .hero-logo-card {
    width: min(72vw, 250px);
    padding: 24px;
  }

  .scroll-cue {
    right: 16px;
    bottom: 24px;
  }

  .facts,
  .process-grid,
  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: 320px;
  }

  .service-card h3 {
    margin-top: 48px;
  }

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

  .promise-inner > p {
    grid-column: auto;
  }

  .contact-card {
    padding: 28px 22px;
  }

  .footer-main,
  .footer-bottom {
    flex-direction: column;
  }

  .footer-main p {
    text-align: left;
  }
}

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