:root {
  color-scheme: light;
  --paper: #f6efe2;
  --paper-0: #fffdf8;
  --paper-1: #fbf7ef;
  --paper-2: #eee2cf;
  --line: #e3d2b8;
  --line-strong: #c9b391;
  --ink: #141411;
  --muted: #524d46;
  --quiet: #7a7064;
  --brand: #0f5f59;
  --brand-dark: #08443f;
  --bronze: #a8733d;
  --bronze-soft: #f2e4d0;
  --danger: #8e3b32;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "Hiragino Mincho ProN", "Noto Serif JP", "Noto Serif KR", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans", "Apple SD Gothic Neo", "Noto Sans CJK SC", system-ui, sans-serif;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.16;
  background-image:
    linear-gradient(to right, rgba(168, 115, 61, 0.13) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(168, 115, 61, 0.1) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, #000, transparent 78%);
}

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

a {
  color: var(--brand);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--brand-dark);
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  left: 16px;
  top: 14px;
  transform: translateY(-180%);
  padding: 10px 14px;
  background: var(--brand);
  color: var(--paper-0);
  border-radius: 6px;
}

.skip-link:focus {
  transform: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(227, 210, 184, 0.9);
  background: rgba(246, 239, 226, 0.92);
  backdrop-filter: blur(14px);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  min-height: 72px;
  padding: 0 clamp(18px, 4vw, 42px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  text-decoration: none;
  min-height: 44px;
}

.brand-mark {
  width: 35px;
  height: 35px;
  border: 0;
  border-radius: 8px;
  object-fit: cover;
  display: grid;
  place-items: center;
  color: var(--brand);
  font-family: var(--serif);
  font-size: 20px;
  background: var(--paper-0);
}

.brand-name {
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  min-height: 44px;
  padding: 10px 11px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

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

.language-switcher {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  background: var(--paper-0);
  border-radius: 8px;
  padding: 3px;
  gap: 1px;
}

.language-switcher button {
  min-width: 38px;
  min-height: 38px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
}

.language-switcher button[aria-pressed="true"] {
  background: var(--brand);
  color: var(--paper-0);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-0);
  color: var(--ink);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1px;
  background: currentColor;
  margin: 5px auto;
}

main {
  position: relative;
}

.section {
  border-top: 1px solid var(--line);
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(64px, 8vw, 132px) clamp(18px, 4vw, 42px);
}

.hero .wrap {
  min-height: min(828px, calc(100vh - 72px));
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  gap: clamp(28px, 5vw, 74px);
  align-items: center;
  padding-top: clamp(34px, 5vw, 66px);
  padding-bottom: clamp(34px, 5vw, 64px);
}

.eyebrow,
.kicker,
.number {
  color: var(--bronze);
  font-size: 12px;
  line-height: 1.35;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0;
  margin: 0;
  text-wrap: balance;
  word-break: keep-all;
  overflow-wrap: normal;
}

h1 {
  font-size: clamp(44px, 6.4vw, 86px);
  line-height: 1.02;
  max-width: 8em;
  margin-top: 18px;
}

h2 {
  font-size: clamp(32px, 4.4vw, 56px);
  line-height: 1.08;
}

.nowrap {
  white-space: nowrap;
}

h3 {
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.22;
}

.lead {
  max-width: 620px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.72;
  margin: 26px 0 0;
}

.hero-actions,
.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 8px;
  border: 1px solid var(--brand);
  background: var(--brand);
  color: var(--paper-0);
  text-decoration: none;
  font-weight: 650;
}

.button:hover {
  background: var(--brand-dark);
  color: var(--paper-0);
}

.button.secondary {
  background: transparent;
  color: var(--brand);
}

.button.secondary:hover {
  background: var(--paper-0);
  color: var(--brand-dark);
}

.note {
  color: var(--quiet);
  font-size: 13px;
}

.hero-note {
  display: block;
  margin-top: 14px;
}

.hero-media {
  position: relative;
  min-height: 620px;
  min-width: 0;
}

.hero-copy {
  min-width: 0;
}

.hero-photo {
  position: absolute;
  inset: 4% 12% auto 0;
  width: 78%;
  height: 430px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: 0 22px 54px rgba(49, 39, 27, 0.16);
  z-index: 0;
}

.hero-phone {
  position: absolute;
  right: 2%;
  bottom: 0;
  width: min(286px, 48%);
  z-index: 2;
}

.label-card {
  position: absolute;
  right: min(300px, 52%);
  bottom: 54px;
  width: 232px;
  padding: 18px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.94);
  box-shadow: 0 12px 34px rgba(49, 39, 27, 0.12);
  z-index: 1;
}

.label-leader {
  position: absolute;
  right: 138px;
  bottom: 222px;
  width: 126px;
  height: 1px;
  background: var(--line-strong);
  transform: rotate(-24deg);
  transform-origin: left center;
  z-index: 3;
}

.label-leader::after {
  content: "";
  position: absolute;
  right: -4px;
  top: -3px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--paper-0);
}

.label-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.vertical-note {
  position: absolute;
  right: 0;
  top: 10px;
  writing-mode: vertical-rl;
  color: var(--bronze);
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.14em;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(260px, 0.55fr);
  gap: clamp(22px, 5vw, 72px);
  align-items: end;
  margin-bottom: clamp(28px, 5vw, 54px);
}

.section-head p {
  color: var(--muted);
  margin: 0;
  max-width: 520px;
}

.section-head h2 {
  max-width: 10.8em;
}

.use-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.use-card {
  min-height: 520px;
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 248, 0.42);
  display: grid;
  grid-template-rows: auto auto auto auto;
  align-content: start;
}

.use-card img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
  margin-bottom: 26px;
}

.use-card h3 {
  margin-top: 12px;
}

.field-list {
  display: grid;
  gap: 10px;
  margin-top: 24px;
  align-content: start;
}

.field {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 14px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.field b {
  color: var(--bronze);
  font-weight: 500;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  counter-reset: step;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.step {
  padding: 28px;
  border-right: 1px solid var(--line);
}

.step:last-child {
  border-right: 0;
}

.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  color: var(--bronze);
  font-family: var(--serif);
  font-size: 28px;
  margin-bottom: 22px;
}

.gallery {
  overflow-x: auto;
  padding-bottom: 18px;
  scrollbar-color: var(--bronze) var(--paper-2);
  position: relative;
  outline-offset: 8px;
  mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 84px), transparent 100%);
}

.gallery::after {
  content: "Scroll ->";
  position: sticky;
  right: 0;
  bottom: 6px;
  float: right;
  padding: 5px 8px;
  border: 1px solid var(--line);
  background: rgba(255, 253, 248, 0.9);
  color: var(--bronze);
  font-size: 12px;
}

.phone-row {
  display: flex;
  gap: 24px;
  min-width: max-content;
}

.phone-shot {
  width: 254px;
  flex: 0 0 auto;
}

.phone-shot figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.phone {
  width: min(286px, 100%);
  aspect-ratio: 828 / 1760;
  border-radius: 36px;
  padding: 8px;
  background: #11110f;
  border: 1px solid rgba(20, 20, 17, 0.62);
  box-shadow: 0 24px 62px rgba(31, 24, 16, 0.24);
  position: relative;
}

.phone::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 32%;
  height: 18px;
  border-radius: 0 0 13px 13px;
  background: #11110f;
  z-index: 2;
}

.phone img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 29px;
  background: #11110f;
}

.languages-band {
  background: var(--paper-0);
}

.translation-grid {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 36px;
  align-items: start;
}

.specimen {
  border-top: 1px solid var(--line-strong);
  padding-top: 18px;
}

.specimen dl {
  margin: 22px 0 0;
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 8px 14px;
  font-size: 14px;
}

.specimen dt {
  color: var(--bronze);
}

.specimen dd {
  margin: 0;
  color: var(--muted);
}

.language-lines {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.language-line {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 22px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.language-line b {
  color: var(--bronze);
  font-family: var(--serif);
  font-size: 20px;
}

.language-line p {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(18px, 2.2vw, 25px);
  line-height: 1.55;
}

.privacy-points,
.price-grid,
.faq-grid,
.support-grid,
.legal-grid {
  display: grid;
  gap: 18px;
}

.privacy-points {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.point,
.price-card,
.support-card,
.legal-note {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.58);
  padding: 22px;
}

.point h3,
.price-card h3,
.support-card h3 {
  font-family: var(--sans);
  font-size: 18px;
  font-weight: 650;
  margin: 0;
}

.point p,
.price-card p,
.support-card p {
  margin: 10px 0 0;
  color: var(--muted);
}

.price-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
}

.price-card.featured {
  border-color: var(--bronze);
  background: var(--paper-0);
}

.purchase-stamp {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  margin: -18px 0 22px;
  padding: 8px 14px;
  border: 1px solid var(--bronze);
  color: var(--brand-dark);
  background: var(--bronze-soft);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.2;
}

.price {
  font-family: var(--serif);
  font-size: 38px;
  line-height: 1;
  margin: 18px 0;
}

.price small {
  display: inline-block;
  margin-left: 8px;
  color: var(--quiet);
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.3;
}

.price-meta {
  color: var(--bronze);
  font-size: 13px;
}

.ai-warning {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 28px 0;
  display: grid;
  grid-template-columns: 0.35fr 1fr;
  gap: 32px;
  color: var(--muted);
}

.ai-warning h2 {
  color: var(--brand-dark);
}

.faq-list {
  display: grid;
  grid-template-columns: 0.35fr minmax(0, 1fr);
  column-gap: clamp(24px, 5vw, 72px);
  row-gap: 0;
  border-top: 1px solid var(--line);
}

.faq-title {
  grid-column: 1;
  grid-row: 1 / span 20;
  padding-top: 18px;
}

.faq-title h2 {
  margin-top: 8px;
  font-size: clamp(25px, 3vw, 38px);
}

details {
  grid-column: 2;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  margin: 0;
}

summary {
  min-height: 52px;
  padding: 17px 42px 17px 0;
  cursor: pointer;
  color: var(--ink);
  font-weight: 650;
  list-style: none;
  position: relative;
}

summary::-webkit-details-marker {
  display: none;
}

summary::before,
summary::after {
  content: "";
  position: absolute;
  right: 4px;
  top: 50%;
  width: 16px;
  height: 1px;
  background: var(--bronze);
}

summary::after {
  transform: rotate(90deg);
}

details[open] summary::after {
  opacity: 0;
}

details p {
  margin: 0;
  max-width: 680px;
  padding: 0 42px 20px 0;
  color: var(--muted);
}

.page-hero {
  border-bottom: 1px solid var(--line);
}

.page-hero .wrap {
  padding-top: clamp(54px, 8vw, 104px);
  padding-bottom: clamp(42px, 6vw, 72px);
}

.draft {
  display: inline-block;
  margin-bottom: 18px;
  padding: 6px 10px;
  border: 1px solid var(--bronze);
  border-radius: 6px;
  color: var(--bronze);
  background: var(--paper-0);
  font-size: 13px;
}

.legal-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}

.toc {
  position: sticky;
  top: 96px;
  border-left: 1px solid var(--line);
  padding-left: 18px;
}

.toc a {
  display: block;
  padding: 7px 0;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

.legal-content section {
  padding: 0 0 34px;
  margin-bottom: 34px;
  border-bottom: 1px solid var(--line);
}

.legal-content h2 {
  font-size: clamp(25px, 3vw, 38px);
}

.legal-content p,
.legal-content li {
  color: var(--muted);
}

.legal-content ul {
  padding-left: 1.2em;
}

.support-grid {
  grid-template-columns: 0.9fr 1.1fr;
  border-top: 1px solid var(--line);
  gap: 0;
}

.support-card {
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  padding: 26px 28px 26px 0;
}

.support-card:nth-child(odd) {
  border-right: 1px solid var(--line);
}

.support-card:nth-child(even) {
  padding-left: 28px;
}

.support-card h2 {
  font-family: var(--serif);
  font-size: clamp(20px, 2.1vw, 24px);
  line-height: 1.25;
}

.support-card ul {
  margin: 14px 0 0;
  padding-left: 1.1em;
  color: var(--muted);
}

.support-card details {
  grid-column: auto;
}

.support-card summary {
  min-height: 48px;
  padding-top: 13px;
  padding-bottom: 13px;
}

.email-box {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 18px;
}

.copy-button {
  min-height: 44px;
  border: 1px solid var(--brand);
  border-radius: 8px;
  color: var(--brand);
  background: transparent;
  padding: 10px 14px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--paper-0);
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 36px clamp(18px, 4vw, 42px);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 22px;
  align-items: start;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-links a {
  color: var(--muted);
  font-size: 14px;
}

.copyright,
.icp-line {
  color: var(--quiet);
  font-size: 13px;
  margin: 8px 0 0;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 560ms cubic-bezier(0.16, 1, 0.3, 1), transform 560ms cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 980px) {
  .nav-toggle {
    display: block;
  }

  .nav {
    flex-wrap: wrap;
  }

  .nav-links {
    order: 4;
    width: 100%;
    display: none;
    overflow-x: auto;
    padding-bottom: 8px;
  }

  .site-header.is-open .nav-links {
    display: flex;
  }

  .hero .wrap,
  .section-head,
  .translation-grid,
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .hero .wrap {
    min-height: auto;
  }

  .hero-media {
    min-height: 620px;
  }

  .label-card {
    bottom: 28px;
    right: 48%;
  }

  .label-leader {
    display: none;
  }

  .toc {
    position: static;
    display: flex;
    gap: 14px;
    overflow-x: auto;
    border-left: 0;
    border-bottom: 1px solid var(--line);
    padding: 0 0 12px;
  }

  .toc a {
    flex: 0 0 auto;
  }

  .use-grid,
  .steps,
  .privacy-points,
  .price-grid {
    grid-template-columns: 1fr;
  }

  .use-card {
    min-height: auto;
    grid-template-rows: auto;
  }

  .use-card img {
    aspect-ratio: 16 / 10;
  }

  .step {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .step:last-child {
    border-bottom: 0;
  }

  .faq-list {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .faq-title,
  .faq-list details {
    grid-column: 1;
  }

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

  .support-card,
  .support-card:nth-child(even),
  .support-card:nth-child(odd) {
    padding-left: 0;
    padding-right: 0;
    border-right: 0;
  }
}

@media (max-width: 767px) {
  body {
    font-size: 15px;
  }

  .nav {
    min-height: 66px;
    gap: 10px;
  }

  .brand-name {
    max-width: 7em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .language-switcher {
    order: 3;
    width: 100%;
    justify-content: space-between;
  }

  .language-switcher button {
    flex: 1;
  }

  .wrap {
    padding-top: 54px;
    padding-bottom: 60px;
  }

  h1 {
    font-size: clamp(38px, 11vw, 52px);
  }

  .hero-media {
    min-height: auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .hero-photo {
    position: relative;
    width: 100%;
    height: 300px;
    inset: auto;
  }

  .hero-phone {
    position: relative;
    width: 58%;
    right: 0;
    bottom: auto;
    justify-self: end;
    margin-top: -180px;
  }

  .label-card {
    position: relative;
    width: 100%;
    left: auto;
    right: auto;
    bottom: auto;
    padding: 14px;
    z-index: 1;
  }

  .vertical-note {
    display: none;
  }

  .phone-shot {
    width: 218px;
  }

  .language-line,
  .ai-warning {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .specimen dl {
    grid-template-columns: 58px 1fr;
  }

  .support-grid,
  .footer-inner {
    grid-template-columns: 1fr;
  }
}

/* Hero annotation: keep the label card clear of the phone mockup (sits at the lower right, under the photo). */
@media (min-width: 768px) {
  .label-card {
    left: auto;
    right: 0;
    bottom: 0;
    width: 212px;
    z-index: 3;
  }

  .label-leader {
    display: none;
  }
}

@media (min-width: 981px) and (max-width: 1199px) {
  .label-card {
    display: none;
  }
}

/* Hero copy must never slide under the photo / phone mock in any language. */
.hero-copy {
  position: relative;
  z-index: 3;
}

.hero h1 {
  max-width: none;
  font-size: clamp(36px, 4.6vw, 68px);
  line-height: 1.08;
  overflow-wrap: break-word;
}

.ph {
  display: inline-block;
}

html[lang="en"] .hero h1 .nowrap {
  white-space: normal;
}

html[lang="ko"] body {
  word-break: keep-all;
  overflow-wrap: break-word;
}

/* Fixed-language samples follow their own script's line-breaking. */
[lang="zh-CN"],
[lang="ja"],
[lang="en"] {
  word-break: normal;
}

[lang="ko"] {
  word-break: keep-all;
}

.language-line > * {
  min-width: 0;
}

@media (max-width: 767px) {
  .hero h1 {
    font-size: clamp(34px, 10vw, 44px);
  }
}

/* Grid children may shrink below their longest unbreakable line (ko keep-all, long Latin terms). */
.translation-grid > *,
.hero .wrap > * {
  min-width: 0;
}

/* Japanese headings have no spaces; keep-all would make them unbreakable on phones. */
h1,
h2,
h3 {
  overflow-wrap: break-word;
}

html[lang="ja"] :is(h1, h2, h3) {
  word-break: normal;
  line-break: strict;
}