:root {
  --ink: #111827;
  --muted: #5b6575;
  --line: #dde3eb;
  --soft: #f4f7fb;
  --brand: #0f5fa8;
  --brand-dark: #0b3d6f;
  --panel: #ffffff;
  --radius: 8px;
  --container: min(1180px, calc(100% - 40px));
  font-family: "Inter", "IBM Plex Sans JP", "Hiragino Sans", "Yu Gothic", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  line-height: 1.75;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 26px;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 max(20px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid rgba(17, 24, 39, 0.08);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
}

.brand {
  font-size: 20px;
  font-weight: 800;
  color: var(--brand-dark);
  white-space: nowrap;
}

.site-nav,
.language-switch {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  font-weight: 700;
}

.site-nav a,
.language-switch a {
  color: var(--muted);
}

.site-nav a:hover,
.language-switch a[aria-current="true"] {
  color: var(--brand);
}

.hero {
  min-height: 680px;
  display: grid;
  align-items: center;
  background:
    linear-gradient(90deg, rgba(10, 28, 48, 0.92), rgba(10, 28, 48, 0.7), rgba(10, 28, 48, 0.36)),
    url("/static/theme/img/bg-head.jpg") center / cover,
    var(--brand-dark);
  color: #fff;
}

.hero__content,
.section__inner,
.contact-section__inner,
.site-footer {
  width: var(--container);
  margin: 0 auto;
}

.hero__content {
  padding: 130px 0 90px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow,
.contact-section .eyebrow {
  color: #d6eaff;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
}

h1 {
  max-width: 960px;
  margin: 0;
  font-size: clamp(42px, 7vw, 78px);
  line-height: 1.08;
}

.hero__lead {
  max-width: 760px;
  margin: 26px 0 0;
  font-size: clamp(17px, 2.1vw, 22px);
  color: rgba(255, 255, 255, 0.86);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  cursor: pointer;
}

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

.button--ghost {
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}

.section {
  padding: 90px 0;
}

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

.section__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 38px;
}

.section__head h2,
.contact-section h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 50px);
  line-height: 1.18;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.service-card {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.service-card span {
  color: var(--brand);
  font-size: 13px;
  font-weight: 800;
}

.service-card h3 {
  margin: 22px 0 12px;
  font-size: 24px;
  line-height: 1.32;
}

.service-card p,
.faq-item p,
.contact-section p {
  margin: 0;
  color: var(--muted);
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.chip-list li {
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  font-weight: 800;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.process-list li {
  min-height: 130px;
  padding: 22px;
  border-left: 3px solid var(--brand);
  background: #fff;
  font-size: 18px;
  font-weight: 800;
}

.process-list span {
  display: block;
  margin-bottom: 24px;
  color: var(--brand);
  font-size: 13px;
}

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

.faq-item {
  padding: 22px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.faq-item summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 800;
}

.faq-item p {
  margin-top: 14px;
}

.contact-section {
  padding: 90px 0;
  background: var(--ink);
  color: #fff;
}

.contact-section__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.72fr);
  gap: 56px;
  align-items: start;
}

.contact-section p {
  max-width: 640px;
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.72);
}

.contact-form {
  display: grid;
  gap: 14px;
  padding: 24px;
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}

.contact-form label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--ink);
  font: inherit;
}

.form-result {
  margin: 0;
  font-weight: 800;
}

.form-result.is-success {
  color: #0f7a4b;
}

.form-result.is-error {
  color: #b42318;
}

.site-footer {
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0;
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 920px) {
  .site-nav {
    display: none;
  }

  .service-grid,
  .process-list,
  .contact-section__inner {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .section,
  .contact-section {
    padding: 68px 0;
  }
}

@media (max-width: 560px) {
  :root {
    --container: min(100% - 28px, 1180px);
  }

  .site-header {
    min-height: 64px;
    gap: 12px;
  }

  .brand {
    font-size: 17px;
  }

  .language-switch {
    gap: 7px;
    font-size: 12px;
  }

  .hero__content {
    padding: 110px 0 66px;
  }

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

  .site-footer {
    display: grid;
  }
}