:root {
  --bulletin-ink: #193f5c;
  --bulletin-muted: #4c6b80;
  --bulletin-paper: #fffdf9;
  --bulletin-surface: #ffffff;
  --bulletin-accent: #f47b62;
  --bulletin-accent-dark: #c64e3b;
  --bulletin-soft: #fff2e5;
  --bulletin-mint: #eaf7f2;
  --bulletin-blue: #eaf5ff;
  --bulletin-border: rgba(25, 63, 92, 0.1);
  --bulletin-shadow: 0 14px 36px rgba(25, 63, 92, 0.09);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.bulletin-page {
  margin: 0;
  color: var(--bulletin-muted);
  background:
    radial-gradient(circle at 8% 8%, rgba(255, 221, 89, 0.24), transparent 32%),
    radial-gradient(circle at 88% 12%, rgba(20, 184, 166, 0.16), transparent 30%),
    linear-gradient(180deg, var(--bulletin-soft) 0%, #fffaf2 48%, #ffffff 100%);
  font-family: "DM Sans", Arial, sans-serif;
  line-height: 1.6;
}

body.bulletin-page--ja {
  font-family: "Noto Sans JP", "DM Sans", "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.72;
}

body.bulletin-page--ko {
  font-family: "Noto Sans KR", "DM Sans", "Malgun Gothic", Arial, sans-serif;
  line-height: 1.68;
}

body.bulletin-page--zh-cn {
  font-family: "Noto Sans SC", "DM Sans", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.72;
}

body.bulletin-page--zh-tw {
  font-family: "Noto Sans TC", "DM Sans", "Microsoft JhengHei", Arial, sans-serif;
  line-height: 1.72;
}

.bulletin-page h1,
.bulletin-page h2,
.bulletin-page h3 {
  margin: 0;
  color: var(--bulletin-ink);
  font-family: "Nunito", "DM Sans", Arial, sans-serif;
  line-height: 1.16;
}

.bulletin-page--ja h1,
.bulletin-page--ja h2,
.bulletin-page--ja h3,
.bulletin-page--ko h1,
.bulletin-page--ko h2,
.bulletin-page--ko h3,
.bulletin-page--zh-cn h1,
.bulletin-page--zh-cn h2,
.bulletin-page--zh-cn h3,
.bulletin-page--zh-tw h1,
.bulletin-page--zh-tw h2,
.bulletin-page--zh-tw h3 {
  font-family: inherit;
  letter-spacing: 0;
}

.bulletin-shell {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.bulletin-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--bulletin-border);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 8px 24px rgba(25, 63, 92, 0.08);
  backdrop-filter: blur(12px);
}

.bulletin-header__inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.bulletin-brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.55rem;
  color: var(--bulletin-ink);
  font-weight: 900;
  text-decoration: none;
}

.bulletin-brand img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
}

.bulletin-nav {
  display: flex;
  flex: 1 1 auto;
  justify-content: flex-end;
  gap: 0.2rem;
  align-items: center;
}

.bulletin-nav a,
.bulletin-mobile-nav a {
  color: var(--bulletin-muted);
  font-weight: 800;
  text-decoration: none;
}

.bulletin-nav a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.72rem;
  border-radius: 999px;
}

.bulletin-nav a:hover,
.bulletin-nav a:focus-visible,
.bulletin-nav a[aria-current="page"] {
  background: var(--bulletin-soft);
  color: var(--bulletin-accent-dark);
  outline: none;
}

.bulletin-menu-button {
  display: none;
  min-width: 44px;
  min-height: 44px;
  border: 1px solid var(--bulletin-border);
  border-radius: 999px;
  background: #fff;
  color: var(--bulletin-ink);
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.bulletin-mobile-nav {
  display: none;
  border-top: 1px solid var(--bulletin-border);
  background: #fff;
}

.bulletin-mobile-nav.is-open { display: block; }

.bulletin-mobile-nav__inner {
  display: grid;
  gap: 0.35rem;
  padding: 0.8rem 0 1rem;
}

.bulletin-mobile-nav a {
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 0.55rem 0.7rem;
  border-radius: 12px;
}

.bulletin-mobile-nav a:hover,
.bulletin-mobile-nav a:focus-visible {
  background: var(--bulletin-soft);
}

.bulletin-main {
  padding: clamp(1.4rem, 4vw, 2.4rem) 0 clamp(3rem, 6vw, 5rem);
}

.bulletin-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 6vw, 3.8rem) clamp(1.4rem, 5vw, 3.5rem);
  border: 1px solid var(--bulletin-border);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--bulletin-shadow);
  text-align: center;
}

.bulletin-hero::after {
  content: "";
  position: absolute;
  right: -64px;
  bottom: -74px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: #ffe0bf;
  pointer-events: none;
}

.bulletin-kicker {
  margin: 0 0 0.65rem;
  color: var(--bulletin-accent-dark);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.bulletin-hero h1 {
  position: relative;
  z-index: 1;
  max-width: 780px;
  margin: 0 auto 0.8rem;
  font-size: clamp(2rem, 5vw, 3.25rem);
}

.bulletin-hero p:not(.bulletin-kicker) {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
  font-size: clamp(1rem, 2vw, 1.12rem);
}

.bulletin-strip,
.bulletin-subscribe {
  margin-top: 1.3rem;
  padding: clamp(1.1rem, 3vw, 1.5rem);
  border: 1px solid var(--bulletin-border);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 10px 24px rgba(25, 63, 92, 0.06);
}

.bulletin-strip h2,
.bulletin-subscribe h2 {
  margin-bottom: 0.8rem;
  font-size: clamp(1.3rem, 3vw, 1.7rem);
}

.bulletin-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.bulletin-pill,
.bulletin-card__link {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.58rem 0.82rem;
  border-radius: 999px;
  background: #fff;
  color: var(--bulletin-ink);
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 8px 16px rgba(25, 63, 92, 0.08);
}

.bulletin-pill:hover,
.bulletin-pill:focus-visible,
.bulletin-card__link:hover,
.bulletin-card__link:focus-visible {
  background: var(--bulletin-accent);
  color: #fff;
  outline: none;
}

.bulletin-section {
  margin-top: clamp(2rem, 5vw, 3.1rem);
}

.bulletin-section__heading {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1rem;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
}

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

.bulletin-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-height: 100%;
  padding: 1.25rem;
  border: 1px solid var(--bulletin-border);
  border-radius: 22px;
  background: var(--bulletin-surface);
  box-shadow: 0 8px 18px rgba(25, 63, 92, 0.06);
}

.bulletin-card:hover {
  box-shadow: 0 14px 28px rgba(25, 63, 92, 0.1);
}

.bulletin-card__icon {
  font-size: 1.55rem;
  line-height: 1;
}

.bulletin-card__tag {
  align-self: flex-start;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: var(--bulletin-blue);
  color: var(--bulletin-ink);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.bulletin-card__tag--new { background: #fde8d0; color: #9a442f; }
.bulletin-card__tag--sheet { background: #eaf7f2; color: #276654; }
.bulletin-card__tag--audio { background: #eaf5ff; color: #24517a; }
.bulletin-card__tag--social { background: #fff0f6; color: #9b2f67; }

.bulletin-card h3 {
  font-size: 1.12rem;
}

.bulletin-card p {
  margin: 0;
  color: var(--bulletin-muted);
}

.bulletin-card__link {
  align-self: flex-start;
  margin-top: auto;
  background: var(--bulletin-accent);
  color: #fff;
}

.bulletin-card__link:hover,
.bulletin-card__link:focus-visible {
  background: var(--bulletin-accent-dark);
}

.bulletin-subscribe {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 1.2rem;
  align-items: center;
  background: linear-gradient(135deg, #ffffff 0%, var(--bulletin-mint) 100%);
}

.bulletin-subscribe p {
  margin: 0.4rem 0 0;
}

.bulletin-form {
  display: flex;
  gap: 0.6rem;
}

.bulletin-form input {
  min-width: 0;
  flex: 1 1 auto;
  min-height: 48px;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--bulletin-border);
  border-radius: 999px;
  color: var(--bulletin-ink);
  font: inherit;
}

.bulletin-form input:focus {
  border-color: var(--bulletin-accent);
  box-shadow: 0 0 0 3px rgba(244, 123, 98, 0.16);
  outline: none;
}

.bulletin-form button {
  min-height: 48px;
  padding: 0.8rem 1rem;
  border: 0;
  border-radius: 999px;
  background: var(--bulletin-ink);
  color: #fff;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.bulletin-form button:hover,
.bulletin-form button:focus-visible {
  background: var(--bulletin-accent-dark);
  outline: none;
}

.bulletin-social-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1rem;
}

.bulletin-social-row img {
  width: 34px;
  height: 34px;
  border-radius: 10px;
}

.bulletin-footer {
  padding: 1.5rem 1rem 2.4rem;
  border-top: 1px solid var(--bulletin-border);
  background: rgba(255, 255, 255, 0.65);
  color: var(--bulletin-muted);
  text-align: center;
}

@media (max-width: 900px) {
  .bulletin-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bulletin-subscribe { grid-template-columns: 1fr; }
  .bulletin-nav { display: none; }
  .bulletin-menu-button { display: inline-flex; align-items: center; justify-content: center; margin-left: auto; }
}

@media (max-width: 560px) {
  .bulletin-shell { width: min(100% - 1.25rem, 520px); }
  .bulletin-grid { grid-template-columns: 1fr; }
  .bulletin-hero { border-radius: 22px; }
  .bulletin-hero::after { width: 120px; height: 120px; right: -44px; bottom: -48px; }
  .bulletin-form { flex-direction: column; }
  .bulletin-form button { width: 100%; }
}