:root {
  --bg: #d8d1cd;
  --bg-guide: #d0c8c3;
  --ink: #51443d;
  --muted: #5f514a;
  --line: rgba(81, 68, 61, 0.18);
  --line-strong: rgba(81, 68, 61, 0.42);
  --max: 1846px;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-width: 320px;
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Segoe UI", sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100svh;
  overflow-x: hidden;
}

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

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 28px clamp(24px, 5vw, 72px);
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(14px, 2.4vw, 32px);
  width: 100%;
  color: var(--muted);
  font-size: clamp(13px, 1vw, 15px);
  font-weight: 600;
  white-space: nowrap;
}

.top-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.top-nav a:hover,
.top-nav a[aria-current="page"] {
  color: var(--ink);
}

.mini-brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.mini-brand img {
  width: 32px;
  height: 32px;
  border-radius: 9px;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(520px, 0.95fr) minmax(460px, 0.85fr);
  align-items: center;
  width: min(100%, var(--max));
  min-height: 100svh;
  margin: 0 auto;
  padding: clamp(96px, 12vh, 132px) clamp(28px, 7vw, 126px) clamp(56px, 8vh, 96px);
  overflow: hidden;
}

.hero-copy {
  position: relative;
  z-index: 2;
  align-self: center;
  justify-self: start;
  min-width: 0;
  width: 100%;
  text-align: left;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  margin: 0 0 clamp(24px, 3.2vh, 40px);
  color: var(--ink);
}

.brand-lockup img {
  width: clamp(50px, 4.5vw, 72px);
  height: clamp(50px, 4.5vw, 72px);
  border-radius: 18px;
}

.brand-lockup span {
  font-size: clamp(28px, 3vw, 48px);
  line-height: 1;
  font-weight: 700;
}

.hero h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(34px, 3vw, 58px);
  line-height: 1.28;
  letter-spacing: 0;
  font-weight: 700;
  text-align: left;
  color: var(--ink);
  overflow-wrap: break-word;
  word-break: keep-all;
}

.mockup {
  justify-self: end;
  width: min(48vw, 720px);
  margin: 0;
  transform: translateY(-1.5vh);
}

.mockup img {
  display: block;
  width: 100%;
  height: auto;
}

.guide {
  min-height: 100svh;
  scroll-margin-top: 96px;
  background: var(--bg-guide);
  overflow: hidden;
}

.guide-inner {
  display: grid;
  grid-template-columns: minmax(420px, 0.86fr) minmax(500px, 0.9fr);
  align-items: center;
  gap: clamp(36px, 7vw, 112px);
  width: min(100%, var(--max));
  min-height: 100svh;
  margin: 0 auto;
  padding: clamp(96px, 12vh, 140px) clamp(28px, 7vw, 126px);
}

.guide-copy {
  max-width: 640px;
}

.section-kicker {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
  font-weight: 700;
}

.guide h2 {
  margin: 0 0 clamp(42px, 6vh, 72px);
  color: var(--ink);
  font-size: clamp(28px, 2.6vw, 46px);
  line-height: 1.18;
  letter-spacing: 0;
  word-break: keep-all;
}

.guide-steps {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.guide-step {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: clamp(18px, 2.6vw, 32px);
  padding: clamp(22px, 3.4vh, 34px) 0;
  border-bottom: 1px solid var(--line);
}

.guide-step > span {
  grid-row: 1 / span 2;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
  font-weight: 700;
  letter-spacing: 0;
}

.guide-step h3 {
  margin: 0 0 8px;
  color: var(--ink);
  font-size: clamp(21px, 1.7vw, 30px);
  line-height: 1.25;
  letter-spacing: 0;
  font-weight: 700;
  word-break: keep-all;
}

.guide-step p {
  grid-column: 2;
  margin: 0;
  color: var(--muted);
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.7;
  word-break: keep-all;
}

.guide-visual {
  position: sticky;
  top: clamp(92px, 13vh, 132px);
  justify-self: end;
  width: min(43vw, 620px);
  margin: 0;
  transform: none;
}

.guide-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.guide-callout {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  font-size: clamp(11px, 0.9vw, 13px);
  line-height: 1;
  font-weight: 700;
}

.guide-callout::after {
  display: block;
  width: clamp(48px, 6vw, 86px);
  height: 1px;
  margin-left: 12px;
  background: var(--line-strong);
  content: "";
}

.guide-callout-money {
  top: 30%;
  left: 5%;
}

.guide-callout-percent {
  top: 42%;
  left: 1%;
}

.guide-callout-result {
  top: 54%;
  left: 7%;
}

.policy {
  width: min(100%, 880px);
  margin: 0 auto;
  padding: clamp(120px, 16vh, 170px) clamp(24px, 6vw, 72px) 80px;
  color: var(--ink);
}

.policy h1 {
  margin: 0 0 32px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.1;
  letter-spacing: 0;
}

.policy p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.policy h2 {
  margin: 38px 0 14px;
  color: var(--ink);
  font-size: clamp(21px, 2.4vw, 28px);
  line-height: 1.28;
  letter-spacing: 0;
}

.policy ul {
  margin: 0 0 18px;
  padding-left: 1.2em;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.policy li {
  margin: 0 0 10px;
}

.policy a {
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}

.policy .updated {
  margin-top: 36px;
  color: rgba(81, 68, 61, 0.58);
  font-size: 14px;
}

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

@media (max-width: 1180px) {
  .site-header {
    padding: 22px clamp(18px, 5vw, 40px);
  }

  .hero {
    grid-template-columns: 1fr;
    align-content: center;
    gap: 28px;
    padding-top: 96px;
  }

  .hero-copy,
  .hero h1 {
    max-width: 100%;
  }

  .mockup {
    justify-self: end;
    width: min(100%, 560px);
    transform: none;
  }

  .guide-inner {
    grid-template-columns: 1fr;
    gap: 34px;
    padding-top: 94px;
  }

  .guide-copy {
    max-width: 760px;
  }

  .guide-visual {
    position: relative;
    top: auto;
    justify-self: end;
    width: min(100%, 560px);
    transform: none;
  }
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    padding: 18px 20px;
  }

  .top-nav {
    gap: 10px;
    font-size: 11px;
  }

  .mini-brand span {
    display: none;
  }

  .hero {
    min-height: 100svh;
    padding: 92px 24px 48px;
  }

  .brand-lockup {
    gap: 12px;
    margin-bottom: 20px;
  }

  .brand-lockup img {
    width: 42px;
    height: 42px;
    border-radius: 13px;
  }

  .brand-lockup span {
    font-size: 28px;
  }

  .hero h1 {
    font-size: clamp(27px, 7.4vw, 35px);
    line-height: 1.34;
    max-width: calc(100vw - 48px);
  }

  .mockup {
    width: min(100%, 430px);
    transform: none;
  }

  .guide {
    min-height: auto;
    scroll-margin-top: 80px;
  }

  .guide-inner {
    min-height: auto;
    padding: 72px 24px 70px;
  }

  .guide-visual {
    width: min(100%, 430px);
    transform: none;
  }

  .guide-callout {
    display: none;
  }

  .section-kicker {
    margin-bottom: 14px;
    font-size: 12px;
  }

  .guide h2 {
    margin-bottom: 30px;
    font-size: clamp(25px, 7vw, 32px);
    line-height: 1.22;
  }

  .guide-step {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 14px;
    padding: 22px 0;
  }

  .guide-step h3 {
    font-size: 21px;
  }

  .guide-step p {
    font-size: 15px;
  }

  .policy {
    padding-top: 108px;
  }
}