:root {
  color-scheme: light;
  --bg: #f7fbff;
  --surface: #ffffff;
  --surface-soft: #eef6ff;
  --text: #0d1b2f;
  --muted: #5d697a;
  --line: #dce8f5;
  --blue: #1378f2;
  --blue-dark: #0a4db3;
  --cyan: #17bfd0;
  --shadow: 0 24px 80px rgba(13, 62, 130, 0.14);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "YuGothic", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 88% 24%, rgba(28, 178, 245, 0.2), transparent 30%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 42%, #ffffff 100%);
  color: var(--text);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(220, 232, 245, 0.78);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 800;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--surface);
  box-shadow: 0 10px 30px rgba(25, 93, 190, 0.12);
}

.brand-mark svg {
  width: 30px;
  height: 30px;
  fill: none;
  stroke: var(--blue);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav-links {
  display: flex;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.hero {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  min-height: calc(100vh - 81px);
  display: grid;
  grid-template-columns: 1fr minmax(320px, 430px);
  gap: 56px;
  align-items: center;
  padding: 72px 0 96px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 720px;
  margin-bottom: 26px;
  font-size: clamp(48px, 8vw, 96px);
  line-height: 1.05;
  letter-spacing: 0;
  background: linear-gradient(100deg, #1167f1 8%, #16b9c9 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.lead {
  max-width: 680px;
  color: #253244;
  font-size: 21px;
  line-height: 1.9;
  font-weight: 600;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 34px;
  flex-wrap: wrap;
}

.button {
  min-height: 50px;
  padding: 0 24px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.button.primary {
  background: var(--blue);
  color: white;
  box-shadow: 0 18px 34px rgba(19, 120, 242, 0.24);
}

.button.secondary {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--blue-dark);
}

.hero-media {
  padding: 12px;
  border-radius: 36px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(233, 246, 255, 0.82));
  box-shadow: var(--shadow);
}

.hero-media img,
.showcase-image img,
.guide-image img {
  border-radius: 28px;
  box-shadow: 0 18px 46px rgba(15, 23, 42, 0.12);
}

.section {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 96px 0;
}

.band {
  width: 100%;
  padding-left: max(20px, calc((100% - 1160px) / 2));
  padding-right: max(20px, calc((100% - 1160px) / 2));
  background: linear-gradient(180deg, #ffffff 0%, #f3f9ff 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 38px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.feature-grid article,
.faq details,
.privacy-list,
.contact,
.steps li {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 16px 44px rgba(28, 77, 140, 0.08);
}

.feature-grid article {
  min-height: 240px;
  padding: 26px;
}

.feature-grid p,
.showcase p,
.steps span,
.faq p,
.privacy-list p,
.contact p {
  color: var(--muted);
  line-height: 1.8;
}

.icon {
  width: 46px;
  height: 46px;
  margin-bottom: 22px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: white;
  font-weight: 900;
}

.showcase {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 96px 0;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 54px;
  align-items: center;
}

.showcase-copy {
  max-width: 520px;
}

.showcase-copy p {
  margin-top: 24px;
  font-size: 19px;
}

.showcase-image {
  padding: 12px;
  border-radius: 34px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.steps {
  display: grid;
  gap: 16px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 18px;
  padding: 24px;
}

.steps strong {
  font-size: 21px;
}

.guide-image {
  width: min(420px, 100%);
  margin: 38px auto 0;
  padding: 12px;
  border-radius: 34px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.faq {
  display: grid;
  gap: 14px;
}

.faq details {
  padding: 22px 24px;
}

.faq summary {
  cursor: pointer;
  font-weight: 900;
  font-size: 18px;
}

.faq p {
  margin: 16px 0 0;
}

.privacy-list {
  padding: 30px;
}

.privacy-list p {
  margin-bottom: 14px;
}

.privacy-list p:last-child {
  margin-bottom: 0;
}

.contact {
  padding: 42px;
}

.contact-mail {
  display: inline-flex;
  margin-top: 12px;
  color: var(--blue);
  font-size: 24px;
  font-weight: 900;
}

.contact-mail.inline {
  margin-top: 0;
  font-size: 20px;
}

.text-link {
  color: var(--blue);
  font-weight: 900;
}

.policy-hero {
  width: min(1040px, calc(100% - 40px));
  margin: 0 auto;
  padding: 88px 0 52px;
}

.policy-hero h1 {
  max-width: 900px;
  margin-bottom: 22px;
  font-size: clamp(44px, 7vw, 78px);
}

.updated {
  color: var(--muted);
  font-weight: 700;
}

.policy-layout {
  width: min(1040px, calc(100% - 40px));
  margin: 0 auto;
  padding: 0 0 96px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 28px;
  align-items: start;
}

.policy-toc {
  position: sticky;
  top: 96px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 16px 44px rgba(28, 77, 140, 0.08);
}

.policy-toc a {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.policy-toc a:hover {
  background: var(--surface-soft);
  color: var(--blue-dark);
}

.policy-card {
  padding: 38px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.policy-card section {
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.policy-card section:first-child {
  padding-top: 0;
}

.policy-card section:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.policy-card h2 {
  margin-bottom: 16px;
  font-size: clamp(24px, 3vw, 34px);
}

.policy-card p,
.policy-card li {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.policy-card ul {
  margin: 0 0 18px;
  padding-left: 22px;
}

.footer {
  padding: 34px 20px;
  color: var(--muted);
  text-align: center;
}

.footer p {
  margin-bottom: 8px;
}

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

.footer a {
  color: var(--blue-dark);
  font-weight: 800;
}

@media (max-width: 980px) {
  .hero,
  .showcase {
    grid-template-columns: 1fr;
  }

  .hero-media,
  .showcase-image {
    width: min(440px, 100%);
    margin: 0 auto;
  }

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

  .policy-layout {
    grid-template-columns: 1fr;
  }

  .policy-toc {
    position: static;
  }
}

@media (max-width: 720px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero {
    padding-top: 46px;
  }

  .lead {
    font-size: 17px;
  }

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

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

  .contact {
    padding: 28px;
  }

  .contact-mail {
    font-size: 19px;
  }

  .policy-card {
    padding: 24px;
  }
}