:root {
  color-scheme: light;
  --tf-ink: #172820;
  --tf-muted: #68756e;
  --tf-green: #087c67;
  --tf-line: #e5eae6;
  --tf-paper: #f5f7f5;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--tf-paper);
  color: var(--tf-ink);
  font-family: Inter, "Noto Sans KR", "Malgun Gothic", sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.tf-header {
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 max(32px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid var(--tf-line);
  background: rgba(255, 255, 255, .94);
}

.tf-brand img {
  display: block;
  width: 194px;
  height: auto;
}

.tf-header-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 17px;
  border-radius: 8px;
  background: var(--tf-green);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
}

.tf-header-link:hover,
.tf-primary-link:hover {
  background: #066b59;
}

.tf-hero {
  position: relative;
  overflow: hidden;
  min-height: 450px;
  background:
    radial-gradient(ellipse at 84% 44%, rgba(8, 124, 103, .12), transparent 36%),
    linear-gradient(110deg, #fff 10%, #f2f7f4 100%);
  border-bottom: 1px solid #e8eeea;
}

.tf-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 84px 32px 74px;
}

.tf-eyebrow {
  margin: 0 0 19px;
  color: var(--tf-green);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .18em;
}

.tf-hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(36px, 5.2vw, 64px);
  line-height: 1.22;
  letter-spacing: -.06em;
}

.tf-hero-copy {
  max-width: 580px;
  margin: 22px 0 0;
  color: #53635b;
  font-size: 16px;
  line-height: 1.85;
  word-break: keep-all;
}

.tf-primary-link {
  display: inline-flex;
  align-items: center;
  gap: 22px;
  margin-top: 28px;
  padding: 14px 19px;
  border-radius: 8px;
  background: var(--tf-green);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}

.tf-hero-note {
  margin: 14px 0 0;
  color: var(--tf-muted);
  font-size: 12px;
}

.tf-hero-mark {
  position: absolute;
  top: 50%;
  right: max(7vw, calc((100vw - 1180px) / 2 + 24px));
  display: grid;
  width: clamp(190px, 24vw, 310px);
  aspect-ratio: 1;
  place-items: center;
  transform: translateY(-50%);
  border: 1px solid rgba(8, 124, 103, .13);
  border-radius: 50%;
  color: rgba(8, 124, 103, .11);
}

.tf-hero-mark::before,
.tf-hero-mark::after {
  position: absolute;
  inset: 20px;
  border: 1px solid rgba(8, 124, 103, .12);
  border-radius: 50%;
  content: "";
}

.tf-hero-mark::after {
  inset: 42px;
}

.tf-hero-mark span {
  font-size: clamp(48px, 8vw, 88px);
  font-weight: 900;
  letter-spacing: -.1em;
}

.tf-banners {
  max-width: 1180px;
  margin: 0 auto;
  padding: 58px 32px 0;
}

.tf-banners-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 18px;
}

.tf-banners-heading .tf-eyebrow {
  margin-bottom: 8px;
}

.tf-banners-heading h2 {
  margin: 0;
  font-size: 24px;
  letter-spacing: -.04em;
}

.tf-banners-heading > p {
  max-width: 440px;
  margin: 0 0 2px;
  color: var(--tf-muted);
  font-size: 13px;
  line-height: 1.7;
  text-align: right;
  word-break: keep-all;
}

.tf-banner-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: stretch;
  gap: 16px;
}

.tf-banner-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid #e2e9e4;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 3px 12px rgba(24, 53, 46, .035);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.tf-banner-card:hover,
.tf-banner-card:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(24, 53, 46, .12);
  border-color: #b8d7cb;
}

.tf-banner-card.is-inactive {
  background: #f5f6f5;
  box-shadow: none;
}

.tf-banner-image {
  display: grid;
  width: 100%;
  aspect-ratio: 2.05 / 1;
  place-items: center;
  overflow: hidden;
  background: #f0f3f1;
}

.tf-banner-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.tf-banner-card.is-inactive .tf-banner-image img {
  filter: grayscale(.55);
  opacity: .72;
}

.tf-banner-image-fallback {
  color: #87938c;
  font-size: 12px;
}

.tf-banner-caption {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-top: 1px solid #eef1ee;
}

.tf-banner-name {
  overflow: hidden;
  color: var(--tf-ink);
  font-size: 13px;
  font-weight: 750;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tf-banner-status {
  grid-column: 1 / -1;
  margin: 0;
  padding: 24px;
  border: 1px dashed #cbd8cf;
  border-radius: 12px;
  color: var(--tf-muted);
  text-align: center;
}

.tf-banner-disclaimer {
  margin: 13px 0 0;
  color: var(--tf-muted);
  font-size: 12px;
  line-height: 1.75;
  word-break: keep-all;
}

.tf-guide {
  max-width: 940px;
  margin: 0 auto;
  padding: 86px 32px 96px;
}

.tf-guide-heading {
  max-width: 720px;
  margin-bottom: 38px;
}

.tf-guide-heading .tf-eyebrow {
  margin-bottom: 13px;
}

.tf-guide-heading h2 {
  margin: 0;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.4;
  letter-spacing: -.045em;
  word-break: keep-all;
}

.tf-guide-heading > p:last-child {
  margin: 14px 0 0;
  color: var(--tf-muted);
  font-size: 15px;
  line-height: 1.85;
  word-break: keep-all;
}

.tf-checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid #dce4de;
}

.tf-checklist li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  padding: 25px 4px;
  border-bottom: 1px solid #dce4de;
}

.tf-number {
  padding-top: 2px;
  color: var(--tf-green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
}

.tf-checklist h3 {
  margin: 0;
  font-size: 18px;
  letter-spacing: -.025em;
}

.tf-checklist p {
  max-width: 760px;
  margin: 9px 0 0;
  color: #5d6b63;
  font-size: 14px;
  line-height: 1.85;
  word-break: keep-all;
}

.tf-disclaimer {
  margin-top: 34px;
  padding: 22px 24px;
  border: 1px solid #e2e9e4;
  border-left: 4px solid var(--tf-green);
  border-radius: 8px;
  background: #fff;
}

.tf-disclaimer strong {
  font-size: 14px;
}

.tf-disclaimer p {
  margin: 8px 0 0;
  color: var(--tf-muted);
  font-size: 13px;
  line-height: 1.8;
  word-break: keep-all;
}

.tf-footer {
  padding: 36px 24px 32px;
  border-top: 1px solid var(--tf-line);
  background: #fff;
  text-align: center;
}

.tf-footer-brand {
  font-size: 16px;
  font-weight: 800;
}

.tf-footer-brand span {
  margin-left: 6px;
  color: var(--tf-green);
  font-size: 10px;
  letter-spacing: .1em;
}

.tf-footer p,
.tf-footer small {
  display: block;
  margin: 9px 0 0;
  color: var(--tf-muted);
  font-size: 12px;
  line-height: 1.6;
}

@media (max-width: 680px) {
  .tf-header {
    min-height: 68px;
    padding: 0 18px;
  }

  .tf-brand img {
    width: 158px;
  }

  .tf-header-link {
    gap: 7px;
    padding: 10px 11px;
    font-size: 11px;
  }

  .tf-hero {
    min-height: 0;
  }

  .tf-hero-inner {
    padding: 66px 22px 55px;
  }

  .tf-hero h1 {
    font-size: clamp(34px, 10vw, 48px);
  }

  .tf-hero-copy {
    max-width: 440px;
    font-size: 14px;
  }

  .tf-hero-mark {
    top: auto;
    right: -92px;
    bottom: -44px;
    width: 220px;
    transform: none;
  }

  .tf-banners {
    padding: 44px 22px 0;
  }

  .tf-banners-heading {
    display: block;
  }

  .tf-banners-heading h2 {
    font-size: 21px;
  }

  .tf-banners-heading > p {
    margin-top: 9px;
    text-align: left;
  }

  .tf-banner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .tf-banner-caption {
    min-height: 44px;
    gap: 6px;
    padding: 8px 9px;
  }

  .tf-banner-name {
    font-size: 12px;
  }

  .tf-banner-disclaimer {
    font-size: 11px;
  }

  .tf-guide {
    padding: 64px 22px 72px;
  }

  .tf-checklist li {
    grid-template-columns: 36px 1fr;
    gap: 10px;
    padding: 21px 0;
  }

  .tf-checklist h3 {
    font-size: 16px;
  }

  .tf-checklist p {
    font-size: 13px;
  }

  .tf-disclaimer {
    padding: 19px 18px;
  }
}

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