:root {
  --paper: #fffcf5;
  --ink: #303d35;
  --muted: #677167;
  --line: #e7e6da;
  --green: #3b6150;
  --orange: #e8a261;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 40px; }
body { margin: 0; color: var(--ink); background: var(--paper); font: 16px/1.8 var(--font); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-underline-offset: 5px; }
button { font: inherit; color: inherit; cursor: pointer; }
a, button, summary { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid #ad713e; outline-offset: 5px; }
[hidden] { display: none !important; }
svg { display: block; max-width: 100%; }
.shell { width: min(1140px, calc(100% - 96px)); margin-inline: auto; }
.skip { position: fixed; top: -90px; left: 20px; z-index: 10; padding: 10px 20px; color: #fff; background: var(--green); }
.skip:focus { top: 12px; }
.site-header { border-bottom: 1px solid var(--line); }
.nav { min-height: 92px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { display: inline-flex; align-items: baseline; gap: 13px; text-decoration: none; white-space: nowrap; }
.brand strong { font-size: 31px; letter-spacing: 3px; font-weight: 650; }
.brand small { font-size: 10px; letter-spacing: 2px; color: var(--muted); }
.nav-right, .nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a { font-size: 13px; text-decoration: none; color: var(--muted); padding: 9px 0; }
.nav-links a:hover, .nav-links a[aria-current] { color: var(--green); }
.nav-links a[aria-current] { box-shadow: 0 2px var(--green); }
.eyebrow { margin: 0 0 20px; color: #627359; font-size: 10px; font-weight: 600; letter-spacing: 2px; line-height: 1.6; }
.hero { padding: 73px 0 66px; display: grid; grid-template-columns: 1.15fr 1fr; gap: 60px; align-items: center; }
.hero h1, .page-hero h1 { font-family: "Songti SC", "STSong", Georgia, serif; font-size: clamp(44px, 5.2vw, 65px); line-height: 1.32; letter-spacing: -2px; font-weight: 500; margin: 0 0 25px; }
.hero h1 em { position: relative; font-style: normal; white-space: nowrap; }
.hero h1 em::after { content: ""; position: absolute; height: 7px; bottom: -4px; left: 0; right: 0; background: #eed3a5; border-radius: 50%; z-index: -1; }
html[lang=en] .hero h1 { font-size: clamp(48px, 5.5vw, 73px); letter-spacing: -3px; line-height: 1.12; }
.hero-intro { max-width: 430px; color: var(--muted); font-size: 16px; line-height: 2; margin: 0 0 29px; }
.actions { display: flex; flex-wrap: wrap; gap: 23px; align-items: center; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 22px; padding: 12px 23px; border: 1px solid var(--green); border-radius: 100px; background: transparent; text-decoration: none; font-size: 13px; transition: transform .2s, background .2s; }
.button svg, .text-link svg { width: 17px; height: 17px; }
.button:hover { background: #f1f2e7; transform: translateY(-2px); }
.button.primary { color: #fff; background: var(--green); }
.button.primary:hover { background: #2c4e3e; }
.text-link { display: inline-flex; align-items: center; gap: 10px; font-size: 13px; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.development { display: inline-flex; gap: 8px; align-items: center; margin: 31px 0 0; font-size: 11px; color: var(--muted); }
.development::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: #92a47a; }
.hero-art { position: relative; padding: 26px 17px; border-radius: 47% 47% 23px 23px; background: #f4e9d1; overflow: hidden; }
.hero-art svg { width: 100%; height: auto; }
.art-caption { margin: 3px 0 0; text-align: center; font-size: 9px; letter-spacing: 2px; color: #7d7965; }
.values { padding: 57px 0 66px; border-top: 1px solid var(--line); }
.section-heading { display: flex; justify-content: space-between; gap: 40px; align-items: end; margin-bottom: 35px; }
.section-heading .eyebrow { margin-bottom: 13px; }
.section-heading h2, .preparing h2 { font-size: 31px; font-weight: 500; line-height: 1.5; margin: 0; letter-spacing: -.7px; }
.section-note { max-width: 310px; color: var(--muted); font-size: 13px; line-height: 1.9; margin: 0 0 3px; }
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 35px; }
.value { padding-top: 25px; border-top: 1px solid #dbdecf; }
.value-number { display: inline-block; font-size: 11px; color: #8a866d; letter-spacing: 1px; margin-bottom: 15px; }
.value h3 { font-size: 19px; font-weight: 550; margin: 0 0 12px; }
.value p { color: var(--muted); font-size: 13px; line-height: 1.95; margin: 0; max-width: 300px; }
.preparing { display: grid; grid-template-columns: 1.1fr 1fr; gap: 55px; padding: 37px 42px; background: #eef1e5; border: 1px solid #e2e7d7; border-radius: 23px; align-items: center; margin-bottom: 68px; }
.preparing .eyebrow { margin-bottom: 13px; }
.preparing h2 { font-size: 27px; }
.preparing p { font-size: 13px; color: var(--muted); line-height: 1.95; margin: 12px 0 0; }
.preparing-links { display: flex; flex-direction: column; }
.preparing-links a { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; gap: 16px; font-size: 14px; text-decoration: none; border-bottom: 1px solid #d9dfcd; }
.preparing-links a:last-child { border: 0; }
.preparing-links svg { width: 19px; height: 19px; }
.site-footer { border-top: 1px solid var(--line); padding: 32px 0 23px; }
.footer-top { display: flex; justify-content: space-between; align-items: center; gap: 25px; }
.footer-tagline { margin: 6px 0 0; color: var(--muted); font-size: 11px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 25px; font-size: 12px; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { text-decoration: underline; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.footer-bottom a { text-decoration: none; }
.page-hero { padding: 59px 0 38px; max-width: 810px; }
.page-hero h1 { font-size: 48px; line-height: 1.4; margin-bottom: 18px; }
.page-hero .lead { font-size: 15px; line-height: 2; color: var(--muted); margin: 0; max-width: 690px; }
.meta { margin: 19px 0 0; font-size: 11px; color: var(--muted); }
.notice { border-left: 3px solid #d1ab6a; background: #f5efdf; border-radius: 0 13px 13px 0; padding: 20px 24px; font-size: 13px; color: #656951; margin-bottom: 35px; line-height: 1.95; }
.support-layout { display: grid; grid-template-columns: 1.15fr 1fr; gap: 52px; padding: 0 0 60px; align-items: start; }
.contact-panel { border-radius: 23px; padding: 35px; background: var(--green); color: #fff; }
.contact-panel .eyebrow { color: #dbe1cb; }
.contact-panel h2 { margin: 0 0 12px; font-size: 27px; font-weight: 500; }
.contact-panel p { font-size: 13px; color: #e2e8d9; line-height: 1.95; margin: 0 0 20px; }
.email-address { display: inline-block; text-decoration: none; font-size: clamp(16px, 1.9vw, 23px); letter-spacing: -.5px; overflow-wrap: anywhere; margin: 2px 0 23px; }
.contact-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 13px; border-top: 1px solid #63816a; padding-top: 24px; }
.contact-panel .button { background: #f1e1ba; color: #364d39; border-color: #f1e1ba; }
.copy-button { border: 1px solid #8fa185; border-radius: 100px; padding: 9px 17px; color: white; background: transparent; font-size: 11px; }
.copy-button:hover { background: #4c705b; }
.contact-panel .status { margin: 12px 0 0; font-size: 11px; }
.status:empty { display: none; }
.contact-panel .form-note { margin: 17px 0 0; font-size: 11px; color: #d4ddc9; }
.topic-links { display: flex; flex-wrap: wrap; gap: 11px 22px; margin-top: 25px; font-size: 12px; }
.support-aside { padding-top: 7px; }
.support-aside h2 { font-size: 23px; font-weight: 500; margin: 0 0 24px; }
.support-checklist { list-style: none; margin: 0; padding: 0; }
.support-checklist li { display: flex; gap: 15px; margin: 21px 0; }
.support-checklist .number { width: 25px; height: 25px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; border: 1px solid #d0d7c6; border-radius: 50%; font-size: 10px; }
.support-checklist strong { display: block; font-size: 13px; font-weight: 550; margin-bottom: 5px; }
.support-checklist p { font-size: 13px; line-height: 1.9; color: var(--muted); margin: 0; }
.faq-section { border-top: 1px solid var(--line); padding: 48px 0 65px; display: grid; grid-template-columns: 1fr 2fr; gap: 55px; }
.faq-section h2 { margin: 0; font-size: 28px; font-weight: 500; }
.faq-section .eyebrow { margin-bottom: 12px; }
.faq-list details { border-bottom: 1px solid var(--line); padding: 19px 0; }
.faq-list details:first-child { padding-top: 0; }
.faq-list summary { display: flex; justify-content: space-between; gap: 18px; list-style: none; cursor: pointer; font-size: 14px; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; font-size: 20px; line-height: 1.4; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list p { font-size: 13px; line-height: 1.95; margin: 13px 20px 0 0; color: var(--muted); }
.legal-layout { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 65px; padding: 15px 0 50px; align-items: start; }
.toc { position: sticky; top: 35px; border-top: 1px solid var(--line); padding-top: 20px; }
.toc strong { font-size: 10px; letter-spacing: 1px; font-weight: 550; }
.toc ol { list-style: none; padding: 0; margin: 15px 0 0; }
.toc li { margin: 11px 0; font-size: 12px; }
.toc a { color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--ink); text-decoration: underline; }
.legal section { margin: 0 0 36px; }
.legal h2 { font-size: 22px; font-weight: 500; margin: 0 0 15px; line-height: 1.5; }
.legal p, .legal li { color: #586455; font-size: 14px; line-height: 2; }
.legal p { margin: 0 0 14px; }
.legal ul { padding-left: 19px; }
.legal li + li { margin-top: 7px; }
@media (max-width: 1000px) {
  .shell { width: calc(100% - 64px); }
  .hero { gap: 35px; padding-top: 58px; }
  .hero h1 { font-size: 51px; }
  .hero-intro { font-size: 14px; }
  .brand small { display: none; }
  .value-grid { gap: 27px; }
  .support-layout { gap: 30px; }
  .contact-panel { padding: 28px; }
  .legal-layout { grid-template-columns: 170px minmax(0, 1fr); gap: 40px; }
}
@media (max-width: 760px) {
  .shell { width: calc(100% - 44px); }
  .nav { min-height: 80px; gap: 20px; }
  .nav-right, .nav-links { gap: 20px; }
  .nav-links a { font-size: 12px; }
  .brand strong { font-size: 28px; }
  .hero { gap: 25px; }
  .hero h1 { font-size: 42px; letter-spacing: -1.5px; }
  html[lang=en] .hero h1 { font-size: 47px; letter-spacing: -2px; }
  .eyebrow { font-size: 9px; letter-spacing: 1.5px; }
  .hero-intro { font-size: 13px; }
  .hero .actions { gap: 15px; }
  .button { padding: 11px 19px; gap: 15px; font-size: 12px; }
  .text-link { font-size: 12px; }
  .hero-art { padding: 20px 10px; }
  .art-caption { font-size: 7px; letter-spacing: 1px; }
  .section-heading h2 { font-size: 26px; }
  .section-note { font-size: 12px; }
  .value-grid { gap: 20px; }
  .value h3 { font-size: 17px; }
  .value p { font-size: 12px; }
  .preparing { padding: 29px; gap: 30px; }
  .preparing h2 { font-size: 23px; }
  .preparing-links a { font-size: 12px; }
  .support-layout { grid-template-columns: 1fr; gap: 26px; }
  .email-address { font-size: 23px; }
  .support-aside { padding: 5px; }
  .faq-section { grid-template-columns: 1fr 1.8fr; gap: 30px; }
  .legal-layout { grid-template-columns: 150px minmax(0, 1fr); gap: 27px; }
}
@media (max-width: 580px) {
  .shell { width: calc(100% - 40px); }
  .nav { flex-wrap: wrap; padding: 15px 0 12px; gap: 9px; }
  .nav-right { display: contents; }
  .brand { gap: 10px; }
  .brand strong { font-size: 28px; }
  .brand small { display: inline; font-size: 9px; letter-spacing: 1.5px; }
  .nav-links { order: 3; width: 100%; justify-content: space-between; margin-top: 5px; }
  .nav-links a { font-size: 12px; padding: 6px 0; }
  .hero { grid-template-columns: 1fr; gap: 31px; padding: 42px 0 38px; }
  .hero h1 { font-size: clamp(38px, 10vw, 55px); letter-spacing: -1.5px; line-height: 1.4; margin-bottom: 20px; }
  html[lang=en] .hero h1 { font-size: clamp(43px, 11.8vw, 65px); letter-spacing: -2.5px; }
  .hero .eyebrow { font-size: 9px; margin-bottom: 18px; }
  .hero-intro { font-size: 14px; line-height: 1.95; max-width: 100%; margin-bottom: 25px; }
  .button { font-size: 13px; padding: 11px 22px; gap: 19px; }
  .text-link { font-size: 13px; }
  .hero .actions { gap: 24px; }
  .development { font-size: 10px; margin-top: 24px; }
  .hero-art { max-width: 420px; margin: auto; width: 100%; padding: 18px 15px 20px; }
  .art-caption { font-size: 8px; letter-spacing: 1.5px; }
  .values { padding: 36px 0 40px; }
  .section-heading { display: block; margin-bottom: 26px; }
  .section-heading h2 { font-size: 27px; }
  .section-note { margin-top: 15px; font-size: 13px; max-width: 100%; }
  .value-grid { grid-template-columns: 1fr; gap: 23px; }
  .value { padding-top: 20px; }
  .value-number { margin-bottom: 10px; font-size: 10px; }
  .value h3 { font-size: 18px; margin-bottom: 9px; }
  .value p { max-width: 100%; font-size: 13px; }
  .preparing { grid-template-columns: 1fr; padding: 26px; gap: 20px; border-radius: 20px; margin-bottom: 42px; }
  .preparing h2 { font-size: 24px; }
  .preparing-links a { font-size: 13px; padding: 15px 0; }
  .preparing-links a:first-child { padding-top: 0; }
  .site-footer { padding: 27px 0 20px; }
  .footer-top { display: block; }
  .footer-links { margin-top: 22px; gap: 22px; font-size: 11px; }
  .footer-bottom { flex-direction: column; gap: 5px; margin-top: 23px; padding-top: 16px; }
  .page-hero { padding: 38px 0 30px; }
  .page-hero h1 { font-size: 35px; line-height: 1.4; letter-spacing: -1px; margin-bottom: 16px; }
  .page-hero .lead { font-size: 14px; }
  .notice { padding: 17px 20px; font-size: 12px; margin-bottom: 27px; }
  .support-layout { padding-bottom: 35px; }
  .contact-panel { padding: 27px; border-radius: 20px; }
  .contact-panel h2 { font-size: 25px; }
  .email-address { font-size: 20px; letter-spacing: -.7px; }
  .contact-actions { gap: 12px; padding-top: 22px; }
  .contact-panel .button { padding: 10px 19px; }
  .copy-button { padding: 9px 13px; font-size: 10px; }
  .topic-links { gap: 12px 20px; font-size: 11px; }
  .support-aside h2 { font-size: 22px; }
  .faq-section { grid-template-columns: 1fr; gap: 26px; padding: 34px 0 43px; }
  .faq-section h2 { font-size: 25px; }
  .faq-list summary { font-size: 13px; }
  .legal-layout { grid-template-columns: 1fr; gap: 27px; padding-top: 0; }
  .toc { position: static; padding: 15px 0 18px; border-bottom: 1px solid var(--line); }
  .toc ol { display: flex; flex-wrap: wrap; gap: 6px 19px; margin-top: 9px; }
  .toc li { margin: 0; font-size: 11px; }
  .legal h2 { font-size: 20px; }
  .legal p, .legal li { font-size: 13px; }
}
@media (max-width: 359px) {
  .shell { width: calc(100% - 32px); }
  .brand small { font-size: 8px; letter-spacing: 1px; }
  .hero h1 { font-size: 37px; }
  .contact-panel { padding: 23px; }
  .email-address { font-size: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}
@media print {
  .site-header, .site-footer, .toc, .skip { display: none; }
  body { background: #fff; color: #000; }
  .shell { width: 100%; }
  .page-hero { padding: 0 0 20px; }
  .page-hero h1 { font-size: 29px; }
  .legal-layout { display: block; }
  .legal h2 { font-size: 18px; }
  .legal p, .legal li { font-size: 12px; }
}

html[lang=ja] .hero h1, html[lang=ko] .hero h1 { font-size: clamp(36px, 4.4vw, 58px); letter-spacing: -1px; }
@media (max-width: 580px) {
  .brand small { display: none; }
  html[lang=ja] .hero h1, html[lang=ko] .hero h1 { font-size: clamp(31px, 8.9vw, 46px); }
}

/* Product mission and experience directions, without unannounced app names or icons. */
.mission { padding: 42px 0 51px; border-top: 1px solid var(--line); max-width: 900px; }
.mission .eyebrow { margin-bottom: 18px; }
.mission h2 { font-family: "Songti SC", "STSong", Georgia, serif; font-size: 40px; font-weight: 500; line-height: 1.5; letter-spacing: -1px; margin: 0 0 20px; }
.mission > p:last-child { font-size: 15px; line-height: 2; color: var(--muted); max-width: 690px; margin: 0; }
.experience-art { height: 145px; margin: 0 0 24px; border-radius: 17px; display: flex; align-items: center; justify-content: center; gap: 17px; overflow: hidden; }
.experience-art span { display: block; width: 48px; height: 48px; }
.experience-1 { background: #f1e9d6; }
.experience-1 span:nth-child(1) { border-radius: 50%; background: #d6b56c; }
.experience-1 span:nth-child(2) { border-radius: 9px; background: #92ad91; transform: rotate(9deg); }
.experience-1 span:nth-child(3) { width: 0; height: 0; border: 25px solid transparent; border-top: 0; border-bottom: 45px solid #d2997d; }
.experience-2 { background: #e9eddf; gap: 0; }
.experience-2 span { width: 54px; height: 54px; border-radius: 10px; }
.experience-2 span:nth-child(1) { background: #84a48c; transform: translate(12px, 16px) rotate(-10deg); }
.experience-2 span:nth-child(2) { background: #dbb66c; transform: translateY(-18px) rotate(7deg); }
.experience-2 span:nth-child(3) { background: #d8a185; transform: translate(-12px, 16px) rotate(10deg); }
.experience-3 { background: #f4e5d9; gap: 11px; }
.experience-3 span:nth-child(1), .experience-3 span:nth-child(3) { width: 38px; height: 67px; border-radius: 24px 24px 9px 9px; background: #9bb496; transform: translateY(10px); }
.experience-3 span:nth-child(2) { width: 59px; height: 91px; border-radius: 32px 32px 10px 10px; background: #ddb36d; }
.experience-3 span:nth-child(3) { background: #ca987d; }
@media (max-width: 760px) { .mission h2 { font-size: 34px; }.experience-art { height: 118px; gap: 10px; }.experience-art span { width: 38px; height: 38px; } }
@media (max-width: 580px) { .mission { padding: 31px 0 36px; }.mission h2 { font-size: 30px; letter-spacing: -.5px; }.mission > p:last-child { font-size: 14px; }.experience-art { height: 145px; }.experience-art span { width: 48px; height: 48px; } }
@media (max-width: 359px) { .mission h2 { font-size: 27px; } }

.featured-app { display: flex; align-items: center; gap: 32px; margin-bottom: 50px; padding: 30px 36px; border: 1px solid var(--line); border-radius: 22px; background: #f5f1e5; }
.featured-app > img { border-radius: 24px; flex-shrink: 0; }
.featured-app h2 { font-size: 27px; font-weight: 500; margin: 9px 0; }
.featured-app p:not(.eyebrow) { font-size: 14px; color: var(--muted); line-height: 1.8; margin: 0 0 14px; }
@media (max-width: 540px) { .featured-app { gap: 20px; padding: 25px; align-items: flex-start; }.featured-app > img { width: 68px; height: 68px; border-radius: 16px; }.featured-app h2 { font-size: 23px; } }
.featured-app > img { object-fit: cover; }