html, body {
  margin: 0;
  min-height: 100%;
  background: var(--belori-bg);
}

body {
  font-family: var(--font-body);
  color: var(--belori-text);
}

a {
  color: var(--belori-indigo-900);
  text-underline-offset: 3px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--belori-border);
  background: rgba(250, 248, 247, 0.9);
  backdrop-filter: saturate(180%) blur(12px);
}

.topbar-inner,
.footer-inner {
  width: min(960px, calc(100% - 64px));
  margin: 0 auto;
  padding: 17px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-sizing: border-box;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand picture,
.brand img {
  display: block;
  width: 34px;
  height: 34px;
}

.brand img { border-radius: 9999px; }

.brand span {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.back {
  color: var(--belori-text-mid);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.page-shell {
  width: min(820px, calc(100% - 64px));
  margin: 0 auto;
  padding: 72px 0 96px;
}

.page-intro { max-width: 720px; }

.eyebrow {
  color: #9a4700;
  font-weight: 800;
}

.page-intro h1 {
  margin: 14px 0 18px;
  font-size: clamp(42px, 6vw, 62px);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.page-intro p {
  margin: 0;
  font-size: 18px;
  line-height: 29px;
  color: var(--belori-text-mid);
}

.contents {
  margin-top: 34px;
  padding: 24px 26px;
  border: 1px solid var(--belori-border-2);
  border-radius: 18px;
  background: rgba(117, 139, 253, 0.07);
}

.contents h2 {
  margin: 0 0 14px;
  color: var(--belori-ink);
  font-size: 19px;
  line-height: 24px;
}

.contents ol {
  margin: 0;
  padding-left: 22px;
  display: grid;
  gap: 9px;
}

.contents li {
  padding-left: 4px;
  color: var(--belori-indigo-900);
  font-weight: 700;
}

.contents a {
  font-size: 14px;
  line-height: 21px;
  font-weight: 650;
}

.notice {
  margin: 24px 0 42px;
  padding: 18px 20px;
  border: 1px solid rgba(255, 134, 0, 0.34);
  border-radius: 16px;
  background: rgba(255, 134, 0, 0.09);
  color: var(--belori-ink-2);
  font-size: 14px;
  line-height: 22px;
}

.options {
  display: grid;
  gap: 22px;
}

.option-card {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 22px;
  padding: 32px;
  border: 1px solid var(--belori-border);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--shadow-card);
}

.option-number {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  background: var(--belori-indigo-900);
  color: #fff;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
}

.option-label {
  margin: 1px 0 5px;
  color: var(--belori-text-mid);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.option-card h2 {
  margin: 0 0 14px;
  font-size: 27px;
  line-height: 32px;
  color: var(--belori-ink);
  scroll-margin-top: 92px;
}

.option-card > div > p:not(.option-label),
.method p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 25px;
  color: var(--belori-text);
}

.instruction-list {
  margin: 14px 0 18px;
  padding-left: 22px;
  display: grid;
  gap: 9px;
}

.instruction-list li {
  padding-left: 4px;
  font-size: 15px;
  line-height: 24px;
  color: var(--belori-text);
}

.instruction-list li::marker {
  color: var(--belori-indigo-900);
  font-weight: 800;
}

.method {
  margin-top: 18px;
  padding: 20px;
  border-radius: 16px;
  background: var(--input-bg);
}

.method h3 {
  margin: 0 0 12px;
  color: var(--belori-indigo-900);
  font-size: 17px;
  line-height: 23px;
}

.method .instruction-list { margin-bottom: 0; }

.primary-link {
  min-height: 48px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  background: var(--belori-indigo-900);
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 14px 28px -17px rgba(39, 24, 126, 0.72);
}

.primary-link:focus-visible,
.back:focus-visible,
.brand:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(117, 139, 253, 0.58);
  outline-offset: 3px;
}

.support {
  margin-top: 42px;
  padding: 30px 32px;
  border-radius: 22px;
  background: var(--belori-indigo-900);
  color: #fff;
}

.support h2 {
  margin: 0 0 10px;
  color: #fff;
  font-size: 25px;
  scroll-margin-top: 92px;
}

.support p {
  margin: 0 0 14px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  line-height: 23px;
}

.support a { color: #fff; font-weight: 700; }

footer {
  border-top: 1px solid var(--belori-border-2);
  background: #fff;
}

.footer-inner {
  padding-top: 24px;
  padding-bottom: 24px;
  color: var(--belori-text-mid);
  font-size: 12px;
}

.footer-inner a { color: var(--belori-text-mid); }

@media (max-width: 640px) {
  .topbar-inner,
  .footer-inner,
  .page-shell {
    width: calc(100% - 36px);
  }

  .page-shell { padding: 44px 0 64px; }
  .page-intro h1 { font-size: 39px; line-height: 42px; }
  .page-intro p { font-size: 16px; line-height: 25px; }
  .contents { margin-top: 28px; padding: 20px; }
  .notice { margin: 20px 0 32px; }

  .option-card {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 24px 20px;
    border-radius: 21px;
  }

  .option-number { width: 44px; height: 44px; border-radius: 14px; }
  .option-card h2 { font-size: 24px; line-height: 29px; }
  .method { padding: 18px 16px; }
  .support { padding: 26px 22px; }
  .footer-inner { gap: 12px; flex-wrap: wrap; }
}

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