:root {
  /* Readable secondary text on the existing white and sage surfaces. */
  --text-muted: #5f6d63;
  --text-accent: #536c4c;
  --action-green: #536c4c;
  font-family: -apple-system, BlinkMacSystemFont, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  color: #273b30;
  background: #fff;
  font-synthesis: none;
  scroll-behavior: smooth;
}
* { box-sizing: border-box; }
body { margin: 0; }
button { font: inherit; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
:focus-visible { outline: 3px solid #557c56; outline-offset: 4px; }
.page-width { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }
.skip-link { position: absolute; z-index: 30; top: -60px; left: 16px; padding: 10px 16px; border-radius: 8px; background: #e6efe3; }
.skip-link:focus { top: 12px; }

.site-header { background: #fff; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 88px; }
.header-nav { flex: none; margin-left: auto; }
.header-nav a { display: inline-flex; align-items: center; min-height: 44px; padding-block: 8px; color: #5e7560; font-size: 16px; font-weight: 700; white-space: nowrap; }
.header-nav a:hover, .header-nav a[aria-current="page"] { color: #2f4335; text-decoration: underline; text-underline-offset: 5px; }
.brand { display: inline-flex; align-items: center; gap: 12px; width: fit-content; }
.brand-mark, .demo-app-mark { display: grid; place-items: center; flex: none; border-radius: 50%; background: #f6e7c9; color: #365846; font-weight: 800; }
.brand-mark { width: 50px; height: 50px; font-size: 29px; line-height: 1; }
.brand-name { display: flex; flex-direction: column; font-size: 27px; line-height: 1.08; font-weight: 800; letter-spacing: .02em; }
.brand-name small { margin-top: 5px; color: var(--text-accent); font-size: 11px; letter-spacing: .12em; font-weight: 600; }

.hero { overflow: hidden; background: #f3f5ef; }
.hero-inner { display: grid; grid-template-columns: 56% 44%; min-height: 626px; }
.hero-copy { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: 70px 72px 76px 0; }
.eyebrow, .section-index { color: var(--text-accent); font-size: 13px; font-weight: 800; letter-spacing: .14em; }
.hero h1 { max-width: 670px; margin: 25px 0 24px; font-size: clamp(39px, 4vw, 58px); line-height: 1.2; letter-spacing: .01em; font-weight: 800; }
.hero h1 span { display: block; }
.hero-copy > p:not(.cta-note) { max-width: 560px; margin: 0 0 34px; color: #5e6e62; font-size: 18px; line-height: 1.9; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 30px; min-height: 58px; padding: 14px 25px; border-radius: 8px; font-size: 16px; font-weight: 750; transition: background .2s, transform .2s; }
.button--primary { background: var(--action-green); color: white; }
.button--primary:hover { background: #587450; transform: translateY(-2px); }
.button span { font-size: 23px; line-height: 1; font-weight: 400; }
.cta-note { max-width: 370px; margin: 14px 0 0; color: var(--text-accent); font-size: 13px; line-height: 1.65; }
.hero-visual { position: relative; display: grid; place-items: center; min-width: 0; }
.hero-visual-back { position: absolute; inset: 10% -35% -14% 1%; border-radius: 48% 48% 0 0; background: #dfe8d9; }
.hero-image { position: relative; z-index: 1; width: 86%; max-height: 410px; object-fit: contain; mix-blend-mode: multiply; }
.hero-sentence { position: absolute; z-index: 2; right: 0; bottom: 62px; display: flex; flex-direction: column; gap: 7px; width: min(82%, 340px); padding: 21px 24px; border-radius: 14px; background: #fff; box-shadow: 0 18px 45px #40534418; }
.hero-sentence span:first-child { color: var(--text-accent); font-size: 12px; font-weight: 750; }
.hero-sentence strong { font-size: 22px; }
.hero-sentence span:last-child { color: var(--text-muted); font-size: 15px; }

.section { padding-block: 110px 118px; scroll-margin-top: 20px; }
.section-heading { max-width: 730px; margin: 0 auto 46px; text-align: center; }
.section-heading h2, .course-copy h2, .listening-copy h2, .assistant-copy h2 { margin: 15px 0 16px; font-size: clamp(30px, 3.2vw, 43px); line-height: 1.37; letter-spacing: .01em; font-weight: 760; }
.section-heading p, .course-copy > p, .listening-copy p, .assistant-copy p { margin: 0; color: var(--text-muted); font-size: 16px; line-height: 1.9; }
.overview-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.overview-item { display: flex; gap: 22px; min-height: 244px; padding: 29px 32px; border-radius: 15px; background: #f5f7f2; }
.overview-number { color: var(--text-accent); font-size: 16px; font-weight: 800; }
.overview-body { display: flex; flex: 1; flex-direction: column; min-width: 0; }
.overview-item h3 { margin: 0 0 10px; font-size: 22px; }
.overview-item p { max-width: 420px; margin: 0; color: var(--text-accent); font-size: 15px; line-height: 1.7; }
.overview-mini { display: flex; align-items: center; gap: 10px; align-self: flex-start; max-width: 100%; min-height: 54px; margin-top: 22px; padding: 11px 15px; border-radius: 10px; background: #fff; color: #526a54; font-size: 14px; }
.overview-mini strong { color: #324b3b; font-size: 15px; }
.overview-mini--analysis { flex-wrap: wrap; }
.overview-mini-arrow { color: var(--text-accent); }
.overview-mini--vocab img { width: 42px; height: 38px; object-fit: contain; }
.overview-mini--vocab strong { font-size: 19px; }
.overview-mini--vocab > span { color: var(--text-accent); }
.overview-mini-play { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: #e6eee2; color: var(--text-accent); font-size: 11px; }
.overview-mini-bars { display: flex; align-items: center; gap: 3px; height: 25px; margin-left: 3px; }
.overview-mini-bars i { width: 3px; height: 9px; border-radius: 2px; background: #94ae89; }
.overview-mini-bars i:nth-child(2), .overview-mini-bars i:nth-child(4) { height: 19px; }
.overview-mini-bars i:nth-child(3) { height: 25px; }
.overview-mini--chat { gap: 8px; background: transparent; padding-inline: 0; }
.overview-mini-question, .overview-mini-answer { display: inline-flex; align-items: center; gap: 6px; padding: 8px 10px; border-radius: 10px; background: #fff; }
.overview-mini-answer { background: #e8f0e5; }
.overview-mini-answer b { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: #f6e7c9; color: #486348; font-size: 14px; }
.overview-mini-answer > span:last-child { color: var(--text-accent); }

.analysis-section, .faq-section { background: #f7f8f5; }
.analysis-demo { overflow: hidden; border-radius: 20px; background: #fff; box-shadow: 0 18px 48px #4153420c; }
.demo-topbar { display: flex; align-items: center; gap: 10px; min-height: 73px; padding: 14px 24px; color: #30473b; }
.demo-app-mark { width: 37px; height: 37px; font-size: 21px; }
.demo-topbar strong { font-size: 17px; }
.demo-disclaimer { margin-left: auto; color: var(--text-muted); font-size: 12px; }
.demo-content { display: grid; grid-template-columns: minmax(0, 1fr) 34px minmax(0, 1fr); align-items: center; gap: 18px; padding: 0 34px 35px; }
.demo-source, .demo-result { min-width: 0; min-height: 355px; padding: 24px; border-radius: 16px; background: #f7f9f5; }
.demo-step { color: var(--text-accent); font-size: 12px; font-weight: 800; letter-spacing: .08em; }
.demo-mode { display: flex; gap: 6px; margin: 20px 0 17px; padding: 4px; border-radius: 9px; background: #eaf0e7; }
.demo-mode button { flex: 1; padding: 9px; border: 0; border-radius: 7px; background: transparent; color: var(--text-accent); font-size: 13px; text-align: center; cursor: pointer; }
.demo-mode .is-selected { background: #fff; color: #486949; font-weight: 750; }
.demo-mode button:hover:not(.is-selected) { color: #486949; }
.demo-photo { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; min-height: 177px; padding: 20px; border-radius: 10px; background: #e8eadf; color: #334a3c; text-align: center; }
.demo-text-source { min-height: 177px; padding: 20px; border-radius: 10px; background: #fff; }
.demo-text-source[hidden], .demo-photo[hidden] { display: none; }
.demo-text-source > span { color: var(--text-accent); font-size: 12px; }
.demo-text-source p { margin: 20px 0 0; color: #334a3c; font-size: 19px; line-height: 1.75; }
.demo-photo span { color: var(--text-accent); font-size: 11px; letter-spacing: .18em; }
.demo-photo strong { font-size: clamp(18px, 2vw, 27px); }
.demo-photo small { color: var(--text-accent); font-size: 15px; }
.demo-source > p { margin: 15px 0 0; color: var(--text-accent); font-size: 13px; }
.demo-arrow { color: var(--text-accent); font-size: 28px; text-align: center; }
.demo-result-card { margin-top: 20px; padding: 23px 24px; border-radius: 12px; background: #fff; }
.demo-result-card > span { display: block; margin-bottom: 16px; color: var(--text-accent); font-size: 12px; }
.demo-result-card > strong { display: block; font-size: clamp(19px, 2vw, 26px); }
.demo-result-card > p { margin: 9px 0 17px; color: var(--text-accent); font-size: 15px; }
.demo-word { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 11px 14px; border-radius: 9px; background: #eef3e9; font-weight: 750; }
.demo-word small { margin-left: 5px; color: var(--text-accent); font-size: 12px; font-weight: 500; }
.demo-word > span:last-child { color: var(--text-accent); font-size: 13px; font-weight: 400; }
.demo-explain { margin-top: 16px; }
.demo-explain b { color: var(--text-accent); font-size: 12px; }
.demo-explain p { margin: 5px 0 0; color: var(--text-muted); font-size: 13px; line-height: 1.55; }
.demo-pagination { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; }
.demo-pagination button { width: 34px; height: 34px; border: 0; border-radius: 50%; background: #edf3e9; color: #507355; cursor: pointer; }
.demo-pagination button:disabled { opacity: .35; cursor: default; }
.demo-pagination button:not(:disabled):hover { background: #dcebd8; }
.demo-dots { display: flex; gap: 6px; }
.demo-dots i { width: 6px; height: 6px; border-radius: 50%; background: #d4ddd0; }
.demo-dots i.is-active { background: #668461; }

.course-layout, .listening-layout, .assistant-layout { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 85px; }
.course-copy > p { max-width: 490px; }
.course-points { display: grid; gap: 24px; margin-top: 34px; }
.course-points h3 { margin: 0 0 6px; font-size: 18px; }
.course-points p { margin: 0; color: var(--text-muted); font-size: 15px; line-height: 1.75; }
.course-preview { position: relative; padding: 31px 40px 45px; border-radius: 22px; background: #edf3e9; }
.level-list { display: flex; justify-content: center; gap: 8px; margin-bottom: 20px; }
.level-list button { display: grid; place-items: center; min-width: 49px; height: 37px; border: 0; border-radius: 30px; background: #e2ebdc; color: var(--text-accent); font-size: 13px; font-weight: 800; cursor: pointer; }
.level-list button[aria-pressed="true"] { background: var(--action-green); color: #fff; }
.level-list button:hover:not([aria-pressed="true"]) { background: #d3e2cd; }
.vocab-card { display: flex; flex-direction: column; align-items: center; min-height: 405px; padding: 22px 28px 27px; border-radius: 18px; background: #fff; }
.card-level { align-self: flex-start; color: var(--text-accent); font-size: 12px; font-weight: 750; }
.vocab-card img { width: 100%; height: 177px; object-fit: contain; }
.vocab-card > strong { font-size: 39px; }
.card-reading { margin-top: 3px; color: var(--text-accent); font-size: 16px; }
.card-meaning { margin-top: 5px; color: var(--text-muted); font-size: 14px; }
.card-example { display: flex; flex-direction: column; gap: 5px; margin-top: 20px; text-align: center; }
.card-example b { font-size: 17px; }
.card-example small { color: var(--text-muted); font-size: 13px; }
.grammar-chip { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; column-gap: 12px; row-gap: 4px; position: relative; z-index: 2; width: calc(100% - 28px); margin: -10px -14px 0 42px; padding: 14px 18px; border: 0; border-radius: 10px; background: #fff; box-shadow: 0 13px 28px #40534412; text-align: left; cursor: pointer; }
.grammar-chip span { color: var(--text-accent); font-size: 11px; font-weight: 750; }
.grammar-chip strong { grid-column: 2; font-size: 18px; }
.grammar-chip small { grid-column: 1 / 3; grid-row: 2; color: var(--text-muted); font-size: 12px; line-height: 1.45; }
.grammar-chip .grammar-chevron { grid-column: 3; grid-row: 1 / 3; font-size: 20px; line-height: 1; }
.grammar-chip[aria-expanded="true"] .grammar-chevron { transform: rotate(180deg); }
.grammar-detail { display: flex; flex-direction: column; gap: 7px; margin: 14px 0 0; padding: 15px 20px; border-radius: 10px; background: #f8faf6; }
.grammar-detail[hidden] { display: none; }
.grammar-detail strong { font-size: 16px; }
.grammar-detail span { color: var(--text-accent); font-size: 13px; }
.course-demo-note { margin: 18px 0 0; color: var(--text-accent); font-size: 12px; text-align: center; }

.listening-section { background: #edf2e9; }
.listening-preview { display: flex; flex-direction: column; align-items: center; min-height: 350px; padding: 30px 37px; border-radius: 20px; background: #fff; text-align: center; }
.listening-top { display: flex; align-items: center; justify-content: space-between; align-self: stretch; color: var(--text-accent); font-size: 13px; font-weight: 700; }
.listening-symbol { display: grid; place-items: center; width: 37px; height: 37px; border-radius: 50%; background: #edf3e8; font-size: 20px; }
.sound-bars { display: flex; align-items: center; justify-content: center; gap: 7px; width: 100%; height: 100px; margin-top: 10px; }
.sound-bars i { width: 5px; height: 30px; border-radius: 8px; background: #a2b498; }
.sound-bars i:nth-child(3n) { height: 56px; background: #7e9c76; }
.sound-bars i:nth-child(4n) { height: 73px; }
.sound-bars i:nth-child(5n) { height: 43px; }
.listening-preview > strong { font-size: 27px; }
.listening-preview > span { margin-top: 8px; color: var(--text-muted); }
.listening-preview.is-playing .listening-japanese { color: #4f7951; }
.listening-preview.is-playing .sound-bars i { animation: sound-pulse .8s ease-in-out infinite alternate; }
.listening-preview.is-playing .sound-bars i:nth-child(3n) { animation-delay: .2s; }
.listening-preview.is-playing .sound-bars i:nth-child(4n) { animation-delay: .4s; }
@keyframes sound-pulse { to { transform: scaleY(.46); } }
.listening-controls { display: flex; align-items: center; justify-content: center; gap: 22px; margin-top: 25px; }
.listening-controls button { border: 0; cursor: pointer; }
.listening-prev, .listening-next { width: 35px; height: 35px; border-radius: 50%; background: #eef4eb; color: var(--text-accent); }
.listening-prev:disabled, .listening-next:disabled { opacity: .35; cursor: default; }
.listening-play { min-width: 128px; padding: 10px 16px; border-radius: 30px; background: var(--action-green); color: #fff; font-size: 13px; font-weight: 750; }
.listening-play:hover { background: #5e7c59; }
.listening-status { min-height: 18px; margin: 12px 0 0; color: var(--text-accent); font-size: 12px; }
.listening-copy p { max-width: 480px; }

.assistant-copy p { max-width: 480px; }
.chat-preview { max-width: 490px; padding: 18px 20px 23px; border-radius: 20px; background: #f6f8f3; }
.chat-head { display: flex; align-items: center; gap: 10px; }
.chat-head div { display: flex; flex-direction: column; gap: 2px; }
.chat-head small { color: var(--text-accent); font-size: 11px; }
.chat-user { width: fit-content; max-width: 88%; margin: 25px 0 15px auto; padding: 11px 15px; border-radius: 16px 16px 4px 16px; background: var(--action-green); color: #fff; font-size: 14px; }
.chat-reply { max-width: 91%; padding: 14px; border-radius: 16px 16px 16px 4px; background: #eaf1e7; }
.chat-reply > p { margin: 0; color: #3f5444; font-size: 14px; line-height: 1.75; }
.chat-word { display: flex; align-items: center; gap: 12px; margin-top: 12px; padding: 9px 12px; border-radius: 10px; background: #fff; }
.chat-word img { width: 48px; height: 48px; object-fit: contain; }
.chat-word div { display: flex; flex-direction: column; gap: 3px; }
.chat-word strong { font-size: 16px; }
.chat-word strong small { color: var(--text-accent); font-size: 11px; font-weight: 500; }
.chat-word div > span { color: var(--text-accent); font-size: 12px; }

.faq-list { max-width: 860px; margin: 0 auto; }
.faq-list details { margin-bottom: 9px; border-radius: 10px; background: #fff; }
.faq-list summary { position: relative; padding: 23px 55px 23px 25px; font-weight: 750; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker, .language-switcher summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: '+'; position: absolute; right: 25px; color: var(--text-accent); font-size: 25px; font-weight: 400; line-height: 1; }
.faq-list details[open] summary::after { content: '−'; }
.faq-list details p { margin: 0; padding: 0 25px 24px; color: var(--text-accent); font-size: 15px; line-height: 1.8; }

.site-footer { background: #e7eee4; }
.footer-main { display: flex; justify-content: space-between; gap: 36px; padding-block: 58px 45px; }
.brand--footer .brand-mark { width: 45px; height: 45px; font-size: 26px; }
.brand--footer .brand-name { font-size: 23px; }
.footer-main p { margin: 19px 0 0; color: var(--text-accent); font-size: 14px; }
.footer-end { display: flex; flex-direction: column; align-items: flex-end; gap: 18px; }
.footer-app-link { color: #466b4b; font-size: 15px; font-weight: 750; }
.footer-app-link span { margin-left: 8px; }
.language-switcher { min-width: 165px; color: #526b52; font-size: 14px; }
.language-switcher summary { padding: 10px 14px; border-radius: 8px; background: #dce8d8; cursor: pointer; list-style: none; }
.language-switcher summary::after { content: '⌄'; float: right; margin-left: 12px; }
.language-switcher[open] summary::after { content: '⌃'; }
.language-options { display: flex; flex-direction: column; gap: 3px; margin-top: 5px; padding: 5px; border-radius: 8px; background: #f6f9f4; }
.language-options a { padding: 9px 10px; border-radius: 5px; }
.language-options a:hover, .language-options a[aria-current="page"] { background: #e1ecdb; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-block: 18px 23px; color: var(--text-accent); font-size: 12px; }
.footer-bottom a:hover { color: #4f6b53; }

@media (max-width: 950px) {
  .hero-inner { grid-template-columns: 53% 47%; }
  .hero-copy { padding-right: 32px; }
  .hero h1 { font-size: clamp(36px, 4.6vw, 53px); }
  .course-layout, .listening-layout, .assistant-layout { gap: 42px; }
  .grammar-chip { column-gap: 8px; }
}
@media (max-width: 700px) {
  .page-width { width: min(100% - 34px, 520px); }
  .header-inner { min-height: 70px; }
  .header-nav a { font-size: 14px; }
  .brand-mark { width: 42px; height: 42px; font-size: 24px; }
  .brand-name { font-size: 22px; }
  .brand-name small { font-size: 9px; }
  .hero-inner { grid-template-columns: 1fr; min-height: 0; }
  .hero-copy { align-items: flex-start; padding: 64px 0 30px; }
  .hero h1 { max-width: 530px; margin: 18px 0; font-size: clamp(36px, 9.4vw, 51px); }
  .hero-copy > p:not(.cta-note) { margin-bottom: 27px; font-size: 16px; line-height: 1.8; }
  .hero-visual { min-height: 420px; }
  .hero-visual-back { inset: 7% -20% -6%; }
  .hero-image { width: min(82%, 340px); max-height: 320px; }
  .hero-sentence { right: 4px; bottom: 20px; width: min(77%, 280px); padding: 15px 17px; }
  .hero-sentence strong { font-size: 18px; }
  .section { padding-block: 75px 82px; }
  .section-heading { margin-bottom: 32px; }
  .section-heading h2, .course-copy h2, .listening-copy h2, .assistant-copy h2 { font-size: clamp(28px, 7.5vw, 36px); }
  .section-heading p, .course-copy > p, .listening-copy p, .assistant-copy p { font-size: 15px; }
  .overview-grid { grid-template-columns: 1fr; gap: 10px; }
  .overview-item { min-height: 182px; padding: 22px 23px; }
  .overview-item h3 { font-size: 18px; }
  .overview-item p { font-size: 14px; }
  .overview-mini { margin-top: 18px; }
  .analysis-demo { border-radius: 15px; }
  .demo-topbar { min-height: 65px; padding: 13px 18px; }
  .demo-content { grid-template-columns: 1fr; gap: 11px; padding: 0 14px 15px; }
  .demo-source, .demo-result { min-height: 0; padding: 19px; }
  .demo-arrow { transform: rotate(90deg); }
  .demo-result-card { padding: 20px; }
  .course-layout, .listening-layout, .assistant-layout { grid-template-columns: 1fr; gap: 37px; }
  .course-preview { padding: 24px 21px 37px; }
  .grammar-chip { margin-left: 15px; }
  .listening-copy, .assistant-copy { order: -1; }
  .listening-preview { min-height: 310px; }
  .chat-preview { max-width: none; }
  .faq-list summary { padding: 19px 45px 19px 19px; }
  .faq-list summary::after { right: 18px; }
  .faq-list details p { padding: 0 19px 20px; }
  .footer-main { flex-direction: column; padding-block: 45px 32px; }
  .footer-end { align-items: flex-start; }
  .footer-bottom { flex-wrap: wrap; }
}
@media (max-width: 360px) {
  .level-list { gap: 4px; }
  .level-list button { min-width: 43px; }
  .hero h1 { font-size: 33px; }
  .grammar-chip small { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  :root { scroll-behavior: auto; }
  * { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* App onboarding samples and the expanded product overview. */
[hidden] { display: none !important; }
button { cursor: pointer; }
.hero-inner { grid-template-columns: 52% 48%; min-height: 700px; gap: 0; }
.hero-copy { padding-right: 42px; }
.hero-copy > .hero-course-line:not(.cta-note) { margin-top: -13px; margin-bottom: 28px; font-size: 15px; line-height: 1.8; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
.button--ios { justify-content: center; gap: 7px; padding-inline: 18px; background: #fff; color: #314938; border: 1px solid #d9e2d5; }
.button--ios:hover { background: #e8eee3; }
.button--ios svg { width: 25px; height: 25px; }
.hero-visual { padding-block: 55px; }
.hero-visual-back { inset: 8% -35% -12% 4%; }
.hero-breakdown { position: relative; width: 100%; padding: 0 24px 24px; border-radius: 22px; background: #fff; }
.hero-breakdown .demo-topbar { padding: 18px 0; }
.breakdown-original { margin: 16px 0 6px; font-size: clamp(23px, 2.6vw, 32px); font-weight: 700; text-align: center; }
.breakdown-original rt { color: var(--text-accent); font-size: 11px; font-weight: 500; }
.breakdown-translation { margin: 9px 0 20px; color: var(--text-muted); font-size: 14px; text-align: center; }
.breakdown-list { display: grid; gap: 7px; }
.breakdown-list button { display: flex; align-items: center; justify-content: space-between; gap: 15px; width: 100%; border: 0; border-radius: 10px; padding: 11px 13px; background: #f6f8f3; color: #3a4c3d; text-align: left; }
.breakdown-list button > span:first-child { font-size: 18px; font-weight: 650; }
.breakdown-list small { display: block; margin-top: 4px; color: var(--text-accent); font-size: 11px; font-weight: 400; }
.breakdown-list button > span:last-child { flex: none; color: var(--text-accent); font-size: 13px; text-align: right; }
.breakdown-list button[aria-pressed="true"] > span:first-child { color: #3c754d; }
.breakdown-detail, .breakdown-grammar { margin-top: 15px; }
.breakdown-detail b, .breakdown-grammar b { color: var(--text-accent); font-size: 12px; }
.breakdown-detail p, .breakdown-grammar span { display: block; margin: 5px 0 0; color: var(--text-accent); font-size: 13px; line-height: 1.7; }
.breakdown-detail { min-height: 68px; }
.breakdown-grammar p { margin: 7px 0; color: #3e5745; font-size: 17px; }
.overview-item { min-height: 274px; padding: 28px; gap: 18px; }
.overview-photo-flow { display: flex; gap: 12px; align-items: center; margin-top: 22px; }
.overview-photo-flow > img { width: 108px; height: 86px; object-fit: cover; border-radius: 7px; }
.overview-photo-flow > span { color: var(--text-accent); font-size: 24px; }
.overview-photo-flow div { display: flex; flex-direction: column; gap: 7px; min-width: 0; }
.overview-photo-flow strong { font-size: 15px; }
.overview-photo-flow small { color: var(--text-accent); }
.overview-word-gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 18px; }
.overview-word-gallery div { display: flex; flex-direction: column; align-items: center; gap: 3px; }
.overview-word-gallery img { width: 100%; height: 88px; object-fit: contain; mix-blend-mode: multiply; }
.overview-word-gallery strong { font-size: 16px; }
.overview-word-gallery small { color: var(--text-accent); font-size: 12px; }
.overview-audio { display: flex; align-items: center; gap: 12px; align-self: flex-start; margin-top: 25px; padding: 14px; border: 0; border-radius: 10px; background: #fff; color: #3a5241; font-size: 16px; }
.mini-play { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: #e6eee2; color: var(--text-accent); font-size: 12px; }
.mini-bars { display: flex; align-items: center; gap: 3px; height: 25px; }
.mini-bars i { width: 3px; height: 9px; border-radius: 2px; background: #94ae89; }
.mini-bars i:nth-child(2), .mini-bars i:nth-child(4) { height: 19px; }
.mini-bars i:nth-child(3) { height: 25px; }
.is-speaking { color: #3b7950 !important; }
.is-speaking .mini-bars i { animation: sound-pulse .7s ease-in-out infinite alternate; }
.overview-chat { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; margin-top: 20px; font-size: 13px; }
.overview-chat > p { padding: 0; color: #425b44; font-weight: 650; }
.mini-question { align-self: flex-end; padding: 8px 11px; border-radius: 11px 11px 3px 11px; background: var(--action-green); color: #fff; }
.mini-answer { display: flex; align-items: center; gap: 8px; padding: 8px 11px; border-radius: 11px 11px 11px 3px; background: #e7eee1; color: var(--text-accent); line-height: 1.6; }
.mini-answer b { font-size: 22px; }
.overview-video, .demo-video-source { position: relative; overflow: hidden; border-radius: 10px; }
.overview-video { width: min(100%, 270px); height: 130px; margin-top: 20px; }
.overview-video img, .demo-video-source img { display: block; width: 100%; height: 100%; object-fit: cover; }
.video-play { position: absolute; left: calc(50% - 20px); top: calc(50% - 15px); display: grid; place-items: center; width: 40px; height: 30px; border-radius: 8px; background: #dd3730; color: white; font-size: 14px; }
.video-subtitle { position: absolute; bottom: 10px; left: 50%; transform: translateX(-50%); padding: 3px 9px; border-radius: 4px; white-space: nowrap; background: #28312bd9; color: #fff; font-size: 12px; }
.overview-dialogue { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 10px; margin-top: 24px; }
.dialogue-role { color: var(--text-accent); font-size: 12px; }
.overview-dialogue p { width: fit-content; padding: 9px 13px; border-radius: 12px; background: #fff; color: #3d5742; }
.demo-source, .demo-result { align-self: stretch; }
.demo-photo { position: relative; display: block; height: 224px; padding: 0; overflow: hidden; background: #e8eadf; }
.demo-photo img { display: block; width: 100%; height: 100%; object-fit: cover; }
.scan-line { position: absolute; top: 12%; left: 10px; right: 10px; height: 2px; background: #acc486; box-shadow: 0 0 12px #9bbd8477; animation: photo-scan 4s ease-in-out 2; }
@keyframes photo-scan { 50% { top: 85%; } }
.demo-text-source, .demo-video-source { height: 224px; }
.demo-text-source { display: flex; flex-direction: column; justify-content: center; }
.demo-result-card { margin-top: 20px; }
.demo-result-card > strong { font-size: 24px; overflow-wrap: anywhere; }
.demo-result-label { color: var(--text-accent); font-size: 12px; }
.demo-word-list { display: grid; gap: 7px; }
.demo-word { flex-wrap: wrap; gap: 6px; padding: 10px 12px; }
.demo-word > span:first-child { font-size: 15px; }
.demo-word small { display: block; margin: 4px 0 0; font-size: 11px; }
.demo-word > span:last-child { margin-left: auto; }
.demo-explain p { line-height: 1.75; }
.course-preview { padding: 28px 30px; }
.vocab-card { min-height: 417px; padding: 21px 25px; }
.vocab-card img { height: 182px; }
.vocab-card > strong { max-width: 100%; font-size: clamp(27px, 3vw, 39px); text-align: center; }
.card-example { min-height: 58px; justify-content: center; }
.card-example b { line-height: 1.6; }
.card-reading { text-align: center; font-size: 14px; }
.course-carousel-controls { display: flex; align-items: center; justify-content: center; gap: 13px; min-height: 54px; color: var(--text-accent); font-size: 12px; }
.course-carousel-controls button { border: 0; background: none; color: var(--text-accent); }
.course-prev, .course-next { width: 35px; height: 35px; font-size: 27px; }
.course-autoplay { margin-left: 5px; padding: 8px; font-size: 12px; }
.grammar-chip { width: 100%; margin: 0; box-shadow: none; grid-template-columns: minmax(0, 1fr) auto; }
.grammar-chip > span:first-child { grid-column: 1; }
.grammar-chip strong { grid-column: 1; grid-row: 2; line-height: 1.5; overflow-wrap: anywhere; }
.grammar-chip small { grid-column: 1; grid-row: 3; }
.grammar-chip .grammar-chevron { grid-column: 2; grid-row: 1 / 4; }
.chat-preview { width: 100%; padding: 20px; }
.chat-context { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; padding: 15px 17px; background: #fff; border-radius: 12px; }
.chat-context > span { color: var(--text-accent); font-size: 12px; }
.chat-context strong { font-size: 21px; }
.chat-context small { color: var(--text-muted); }
.chat-demo-messages { min-height: 230px; }
.chat-reply { max-width: 100%; }
.chat-composer { display: flex; align-items: center; gap: 10px; min-height: 54px; margin-top: 17px; padding: 12px 14px; background: #fff; border-radius: 12px; }
.chat-composer-text { flex: 1; color: var(--text-accent); font-size: 14px; }
.chat-composer.is-typing .chat-composer-text::after { content: '│'; color: var(--text-accent); animation: caret-blink .6s step-end infinite; }
@keyframes caret-blink { 50% { opacity: 0; } }
.chat-demo-replay { width: 32px; height: 32px; padding: 0; border: 0; background: transparent; color: var(--text-accent); font-size: 24px; }
.chat-demo-caption { margin: 10px 0 0; text-align: center; color: var(--text-muted); font-size: 11px; }
.chat-demo-messages.is-waiting::after { content: '•••'; display: block; margin-top: 20px; color: var(--text-accent); letter-spacing: 5px; }
.footer-main p { max-width: 500px; line-height: 1.8; }
@media (max-width: 950px) {
  .hero-inner { grid-template-columns: 50% 50%; }
  .hero-copy { padding-right: 24px; }
  .hero-breakdown { padding: 0 18px 20px; }
  .hero h1 { font-size: 39px; }
  .overview-item { padding: 23px; gap: 14px; }
  .overview-photo-flow { flex-wrap: wrap; gap: 8px; }
  .demo-content { gap: 12px; padding-inline: 20px; }
  .demo-source, .demo-result { padding: 18px; }
  .demo-result-card { padding: 18px; }
}
@media (max-width: 700px) {
  .brand-name { font-size: 21px; }
  .hero-inner { grid-template-columns: 1fr; min-height: 0; }
  .hero-copy { padding: 46px 0 10px; }
  .hero h1 { font-size: clamp(31px, 8.8vw, 48px); }
  .hero-copy > .hero-course-line:not(.cta-note) { margin-top: -8px; margin-bottom: 24px; font-size: 14px; }
  .hero-actions { gap: 10px; }
  .button { padding: 13px 16px; gap: 20px; font-size: 14px; min-height: 53px; }
  .button--ios { gap: 5px; }
  .hero-visual { min-height: 0; padding: 30px 0 45px; }
  .hero-breakdown { padding: 0 19px 22px; }
  .hero-visual-back { inset: 0 -15% -10%; }
  .breakdown-original { font-size: 27px; }
  .breakdown-list button > span:first-child { font-size: 17px; }
  .overview-item { min-height: 0; padding: 24px 20px; gap: 15px; }
  .overview-photo-flow { flex-wrap: nowrap; }
  .overview-photo-flow > img { width: 85px; height: 74px; }
  .overview-photo-flow strong { font-size: 13px; }
  .overview-word-gallery { gap: 8px; }
  .overview-word-gallery img { height: 75px; }
  .overview-audio { font-size: 14px; gap: 8px; padding: 12px 10px; }
  .overview-video { width: 100%; }
  .demo-disclaimer { font-size: 10px; }
  .demo-content { padding: 0 14px 15px; }
  .demo-source, .demo-result { padding: 18px; }
  .demo-result-card > strong { font-size: 23px; }
  .course-preview { padding: 23px 18px; }
  .vocab-card { min-height: 390px; padding: 20px; }
  .vocab-card > strong { font-size: 34px; }
  .grammar-chip { margin: 0; padding: 14px; }
  .chat-context strong { font-size: 20px; }
  .chat-demo-messages { min-height: 245px; }
  .chat-preview { padding: 18px; }
  .listening-preview { padding: 27px 23px; }
}
@media (max-width: 360px) {
  .hero h1 { font-size: 29px; }
  .hero-actions { gap: 8px; }
  .button { font-size: 13px; padding-inline: 12px; }
  .breakdown-original { font-size: 24px; }
  .overview-photo-flow { flex-wrap: wrap; }
}
@media (prefers-reduced-motion: reduce) {
  .scan-line { display: none; }
  .sound-bars i, .mini-bars i, .chat-composer-text::after { animation: none !important; }
}

/* Public feature guides use the same borderless palette as the homepage. */
.overview-item h3 a { color: inherit; text-decoration: none; }
.overview-item h3 a:hover { text-decoration: underline; text-underline-offset: 5px; }
.footer-guides, .footer-developer { display: flex; flex-wrap: wrap; gap: 12px 28px; padding-block: 16px; font-size: 14px; line-height: 1.8; }
.footer-guides a, .footer-developer a { color: var(--text-accent); text-decoration: none; }
.footer-guides a:hover, .footer-developer a:hover { text-decoration: underline; text-underline-offset: 4px; }
.footer-developer { padding-top: 0; color: var(--text-accent); font-size: 13px; }
.guide-hero { padding: 36px 0 48px; background: #f3f6ef; }
.breadcrumbs { margin-bottom: 36px; color: var(--text-accent); font-size: 13px; line-height: 1.8; }
.breadcrumbs a { color: inherit; text-underline-offset: 4px; }
.guide-hero h1 { max-width: 850px; margin: 18px 0; font-size: clamp(30px, 4.5vw, 48px); line-height: 1.4; letter-spacing: -.025em; }
.guide-hero p { max-width: 780px; margin: 0 0 24px; color: #64725f; font-size: 18px; line-height: 1.9; }
.guide-hero .guide-byline { margin: 22px 0 0; font-size: 12px; color: var(--text-accent); }
.guide-content { padding-block: 12px 72px; }
.guide-section { margin-top: 56px; }
.guide-section h2 { max-width: 850px; margin: 0 0 20px; font-size: clamp(24px, 3vw, 32px); line-height: 1.5; }
.guide-section > p, .guide-section > ol { max-width: 800px; color: #596653; font-size: 17px; line-height: 1.95; }
.guide-section > p { margin: 16px 0; }
.guide-section > ol { padding-left: 1.6em; }
.guide-section li { padding-left: 6px; margin: 12px 0; }
.guide-section [lang="ja"] { color: #2f4335; }
.article-step { margin-top: 32px; }
.article-step h3 { max-width: 800px; margin: 0 0 12px; font-size: 21px; line-height: 1.6; }
.article-step > p, .article-supplement > p { max-width: 800px; color: #596653; font-size: 17px; line-height: 1.95; margin: 12px 0; }
.article-supplement { margin: 20px 0; scroll-margin-top: 28px; }
.article-supplement > summary { cursor: pointer; min-height: 44px; padding-block: 10px; color: var(--text-accent); font-weight: 600; line-height: 1.7; }
.article-step .article-comparison td { min-width: 0; }
.article-step .article-comparison { max-width: 800px; }
.article-step .article-comparison table { min-width: 0; width: 100%; table-layout: fixed; }
.article-step .article-comparison th:first-child { width: 32%; }
.guide-section .article-step > .comparison-hint { display: none; }
.guide-demo > .analysis-demo { margin-top: 28px; background: #f3f6ef; }
.guide-demo > .course-preview, .guide-demo > .chat-preview { max-width: 520px; margin: 28px auto 0; }
.guide-section .faq-list { max-width: 850px; }
.guide-related { display: flex; flex-wrap: wrap; gap: 14px 28px; }
.guide-related h2 { flex-basis: 100%; margin-bottom: 0; }
.guide-related > a { color: var(--text-accent); font-size: 15px; line-height: 1.8; text-underline-offset: 5px; }
@media (max-width: 700px) {
  .guide-hero { padding: 24px 0 36px; }
  .breadcrumbs { margin-bottom: 24px; }
  .guide-hero p { font-size: 16px; }
  .guide-section { margin-top: 40px; }
  .guide-section > p, .guide-section > ol { font-size: 16px; }
  .article-step > p, .article-supplement > p { font-size: 16px; }
  .footer-guides { gap: 10px 20px; }
}
/* Editorial examples use the same quiet, borderless surfaces as the App. */
.journal-entry { margin: 0 0 3rem; }
.journal-entry-link { display: grid; grid-template-columns: minmax(0, 360px) minmax(0, 1fr); align-items: center; gap: 32px; color: inherit; text-decoration: none; }
.journal-entry-link:not(:has(.journal-entry-image)) { grid-template-columns: 1fr; }
.journal-entry-image { display: block; width: 100%; height: auto; aspect-ratio: 1200 / 630; object-fit: contain; border: 0; border-radius: 12px; }
.journal-entry-copy { min-width: 0; }
.journal-entry-link:hover h3 { text-decoration: underline; text-underline-offset: 5px; }
.journal-entry-link:focus-visible { outline: 2px solid var(--text-accent); outline-offset: 6px; border-radius: 12px; }
@media (max-width: 800px) { .journal-entry-link { grid-template-columns: 1fr; gap: 20px; } }
.journal-group { margin: 44px 0 64px; }
.journal-group > h2 { margin: 0 0 12px; font-size: clamp(25px, 3vw, 32px); line-height: 1.5; }
.journal-group-intro { margin: 0 0 36px; max-width: 800px; color: #64725f; line-height: 1.9; }
.journal-topics { display: flex; flex-wrap: wrap; gap: 8px 28px; }
.journal-topics a { display: inline-flex; align-items: center; min-height: 44px; color: var(--text-accent); font-weight: 650; text-decoration-thickness: 1px; text-underline-offset: 6px; }
.journal-rss { min-width: 0; }
.journal-rss[open] { flex-basis: 100%; max-width: 640px; }
.journal-rss summary { min-height: 44px; line-height: 44px; color: var(--text-accent); font-weight: 650; cursor: pointer; }
.journal-rss p { margin: 12px 0; color: var(--text-muted); font-size: 15px; line-height: 1.8; }
.journal-rss .rss-feed-url { display: block; width: 100%; min-height: 44px; padding: 10px 12px; border: 0; border-radius: 8px; background: #fff; color: var(--text-muted); font: inherit; font-size: 14px; box-sizing: border-box; }
.journal-entry h3 { margin: 10px 0 14px; max-width: 900px; font-size: clamp(21px, 2.2vw, 27px); line-height: 1.6; }
.journal-entry-copy > p { max-width: 820px; color: #596653; font-size: 17px; line-height: 1.9; }
.journal-entry time, .article-sources { color: var(--text-muted); font-size: .95rem; }
.sentence-lab, .lesson-quiz, .article-takeaway { background: #f2f5ee; border-radius: 1.4rem; padding: 1.5rem; margin: 1.5rem 0; }
.lab-caption { color: var(--text-muted); font-size: .9rem; }
.sentence-parts { display: flex; flex-wrap: wrap; gap: .75rem; }
.sentence-parts button { flex: 1 1 140px; background: white; border: 0; border-radius: 1rem; padding: 1.2rem .75rem; color: #283d31; font: inherit; cursor: pointer; }
.sentence-parts button > span { display: block; font-size: 1.6rem; line-height: 2.3; }
.sentence-parts b { color: var(--text-accent); }
.sentence-parts small { color: var(--text-muted); font-size: .85rem; }
.sentence-parts button[aria-pressed="true"] { color: #36794d; background: #e5eddf; }
.sentence-parts button:focus-visible, .quiz-options button:focus-visible { outline: 2px solid #577951; outline-offset: 3px; }
.lesson-detail { color: var(--text-accent); }
.lesson-quizzes { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.lesson-quiz { margin: 0; }
.lesson-quiz > p[lang="ja"] { font-size: 1.2rem; color: #283d31; font-weight: 600; }
.quiz-options { display: flex; gap: .6rem; }
.quiz-options button { border: 0; background: white; border-radius: 50%; width: 3rem; height: 3rem; color: var(--text-accent); font: inherit; cursor: pointer; }
.quiz-options button[aria-pressed="true"] { background: var(--action-green); color: white; }
.quiz-status { font-size: .9rem; min-height: 3.5em; }
.lesson-quiz summary { cursor: pointer; color: var(--text-accent); }
.article-takeaway p { margin: 0; font-weight: 600; }
.article-toc { max-width: 850px; margin-top: 20px; }
.article-toc summary { width: fit-content; min-height: 44px; padding-block: 10px; color: var(--text-accent); font-weight: 650; cursor: pointer; }
.article-toc summary:focus-visible, .article-toc a:focus-visible { outline: 2px solid #577951; outline-offset: 3px; }
.article-toc ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px 28px; list-style: none; margin: 12px 0 0; padding: 0; }
.article-toc li { min-width: 0; }
.article-toc a { display: flex; align-items: center; min-height: 44px; padding-block: 6px; color: #596653; font-size: 15px; line-height: 1.8; text-underline-offset: 5px; overflow-wrap: anywhere; }
.journal-page .guide-section[id] { scroll-margin-top: 28px; }
@media (max-width: 640px) { .article-toc ul { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .lesson-quizzes { grid-template-columns: 1fr; } .sentence-parts button { flex-basis: 100%; } }

.flashcard-workshop { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin: 28px 0; padding: 28px; background: #f2f5ee; border-radius: 24px; }
.flashcard-workshop > div { min-width: 0; }
.flashcard-source, .flashcard-result { padding: 24px; background: #fff; border-radius: 18px; }
.flashcard-scene { display: block; width: 100%; height: auto; margin: 20px 0; }
.flashcard-original { margin: 20px 0 10px; font-size: clamp(20px, 2.4vw, 27px); font-weight: 650; line-height: 1.8; }
.flashcard-translation { color: var(--text-muted); font-size: 15px; line-height: 1.8; }
.flashcard-choices { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.flashcard-choices button { padding: 10px 20px; border: 0; background: #eff3ea; border-radius: 40px; font-size: 19px; color: var(--text-accent); cursor: pointer; }
.flashcard-choices button[aria-pressed="true"] { background: var(--action-green); color: #fff; }
.guide-section .flashcard-choices button[aria-pressed="true"] [lang="ja"] { color: #fff; }
.flashcard-word { margin: 20px 0 24px; font-size: 46px; font-weight: 750; color: #293e30; }
.flashcard-panel { min-height: 320px; }
.flashcard-answer dl { display: grid; gap: 16px; margin: 0; }
.flashcard-answer dt, .flashcard-example-label { color: var(--text-accent); font-size: 12px; font-weight: 650; }
.flashcard-answer dd { margin: 5px 0 0; color: #3b533e; font-size: 20px; }
.flashcard-usage { color: var(--text-accent); font-size: 14px; line-height: 1.9; }
.flashcard-example-label { margin: 24px 0 6px; }
.flashcard-example { margin: 0; font-size: 21px; font-weight: 600; line-height: 1.8; }
.flashcard-recall { padding: 12px 18px; background: #eef3e8; color: var(--text-accent); border: 0; border-radius: 12px; font: inherit; font-weight: 600; cursor: pointer; }
.flashcard-status, .flashcard-note { color: var(--text-accent); font-size: 13px; line-height: 1.8; }
.flashcard-note { grid-column: 1 / -1; margin: 0; }
.flashcard-quizzes { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 28px 0; }
.flashcard-quiz { padding: 24px; background: #f2f5ee; border-radius: 18px; min-width: 0; }
.flashcard-quiz > p:first-child { font-weight: 600; font-size: 18px; line-height: 1.8; }
.flashcard-quiz-status { color: var(--text-accent); min-height: 48px; line-height: 1.8; }
.flashcard-quiz .quiz-options { flex-wrap: wrap; }
.flashcard-quiz .quiz-options button { width: auto; height: auto; min-height: 44px; padding: 10px 16px; border-radius: 14px; line-height: 1.6; }
.flashcard-quiz summary { color: var(--text-accent); cursor: pointer; }
.flashcard-quiz details p { color: #69765f; line-height: 1.9; }
.flashcard-workshop [hidden], .flashcard-quizzes [hidden] { display: none; }
.flashcard-workshop button:focus-visible, .flashcard-quizzes button:focus-visible { outline: 3px solid #78906b; outline-offset: 4px; }
.article-comparison { max-width: 100%; overflow-x: auto; margin: 28px 0; border-radius: 18px; background: #f3f6ef; }
.comparison-hint { display: none; }
.comparison-controls { margin: 22px 0; }
.comparison-controls[hidden], .article-comparison tr[hidden] { display: none; }
.comparison-platforms { display: flex; flex-wrap: wrap; gap: 8px; }
.comparison-platforms button { min-height: 44px; padding: 10px 16px; border: 0; border-radius: 24px; background: #edf2e6; color: var(--text-accent); font: inherit; font-size: 14px; font-weight: 600; cursor: pointer; }
.comparison-platforms button[aria-pressed="true"] { background: #57734f; color: #fff; }
.comparison-platforms button:hover { background: #dfe8d7; color: #2f4335; }
.comparison-platforms button[aria-pressed="true"]:hover { background: #496344; color: #fff; }
.comparison-platforms button:focus-visible { outline: 3px solid #78906b; outline-offset: 3px; }
.guide-section .comparison-status { margin: 14px 0 4px; color: var(--text-accent); font-size: 14px; }
.guide-section .comparison-note { margin: 4px 0; color: var(--text-accent); font-size: 13px; }
.article-comparison:focus-visible { outline: 3px solid #78906b; outline-offset: 4px; }
.article-comparison table { width: 100%; min-width: 640px; border-collapse: collapse; text-align: left; line-height: 1.8; font-size: 15px; }
.article-comparison caption { text-align: left; padding: 22px 24px 12px; color: var(--text-accent); font-weight: 600; }
.article-comparison th, .article-comparison td { padding: 16px 24px; vertical-align: top; border: 0; }
.article-comparison thead { color: var(--text-accent); }
.article-comparison tbody tr:nth-child(odd) { background: #fff; }
.article-comparison tbody th { width: 21%; color: #2f4335; }
.article-comparison td { color: #596653; }
.article-flow { margin: 28px 0; padding: 26px; border-radius: 18px; background: #f3f6ef; }
.article-flow figcaption { font-weight: 600; color: var(--text-accent); margin-bottom: 20px; }
.article-flow ol { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); list-style: none; gap: 24px; padding: 0; margin: 0; }
.article-flow li { padding: 22px; margin: 0; background: #fff; border-radius: 14px; min-width: 0; }
.article-flow .flow-number { display: block; color: var(--text-accent); font-weight: 600; margin-bottom: 12px; }
.article-flow strong { display: block; color: #2f4335; font-size: 20px; }
.article-flow p { margin: 10px 0 0; color: #596653; font-size: 15px; line-height: 1.85; }
@media (max-width: 720px) {
  .guide-section .comparison-hint { display: block; color: var(--text-accent); font-size: 13px; margin-bottom: -16px; }
  .article-flow { padding: 20px; }
  .article-flow ol { grid-template-columns: 1fr; gap: 12px; }
  .article-comparison th, .article-comparison td { padding: 14px 18px; }
}
@media (max-width: 720px) {
  .flashcard-workshop, .flashcard-quizzes { grid-template-columns: 1fr; }
  .flashcard-workshop { padding: 16px; gap: 16px; }
  .flashcard-source, .flashcard-result, .flashcard-quiz { padding: 20px; }
  .flashcard-panel { min-height: 290px; }
}