:root {
  color-scheme: light;
  --paper: #fff8ea;
  --surface: #fffcf5;
  --ink: #09234c;
  --secondary: #435574;
  --yellow: #f6c95e;
  --line: #d1c5a9;
  font-family: ui-rounded, "Hiragino Sans GB", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 28px; }
body { margin: 0; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 5px; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; height: auto; }
svg { flex-shrink: 0; }
figure, h1, h2, p, dl, dd { margin: 0; }
::selection { background: var(--yellow); color: var(--ink); }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 5px; border-radius: 4px; }
body::-webkit-scrollbar { width: 10px; }
body::-webkit-scrollbar-track { background: var(--paper); }
body::-webkit-scrollbar-thumb { background: var(--line); border: 2px solid var(--paper); border-radius: 8px; }
.wrap { width: min(1120px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: absolute; z-index: 2; left: 20px; top: -100px; padding: 12px 18px; background: var(--ink); color: var(--paper); }
.skip-link:focus { top: 16px; }
.site-header { min-height: 108px; display: flex; align-items: center; gap: 32px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; gap: 13px; align-items: center; text-decoration: none; font-size: 19px; font-weight: 700; letter-spacing: -.02em; }
.brand img { border-radius: 12px; }
.brand:hover span, .language-switch a:hover { text-decoration: underline; }
.text-link:hover, .email-address:hover { text-decoration-thickness: 2px; }
.navigation { display: flex; align-items: center; gap: 30px; margin-left: auto; font-size: 15px; }
.navigation a { display: inline-flex; align-items: center; min-height: 44px; text-decoration: none; padding-block: 12px; }
.navigation a:hover { text-decoration: underline; }
.language-switch { display: flex; gap: 10px; align-items: center; font-size: 13px; }
.language-switch a { min-width: 30px; min-height: 44px; display: grid; place-items: center; text-decoration: none; color: var(--secondary); }
.language-switch a[aria-current="true"] { color: var(--ink); font-weight: 750; text-decoration: underline; }
.language-switch span { color: var(--secondary); }
.hero { display: grid; grid-template-columns: 1.3fr 1fr; gap: 72px; align-items: center; padding-block: 86px 108px; }
h1 { font-size: clamp(44px, 5.35vw, 72px); line-height: 1.08; letter-spacing: -.035em; font-weight: 750; text-wrap: balance; }
.hero-description { max-width: 38ch; margin-top: 28px; color: var(--secondary); font-size: 19px; line-height: 1.7; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; margin-top: 36px; }
.button { display: inline-flex; gap: 18px; align-items: center; justify-content: center; min-height: 54px; padding: 16px 22px; border-radius: 18px; text-decoration: none; font-size: 15px; line-height: 1.4; font-weight: 700; transition: background-color 160ms ease-out, box-shadow 160ms ease-out; }
.button-primary { background: var(--yellow); }
.button-primary:hover { background: #edbf50; box-shadow: 0 5px 16px #09234c14; }
.text-link { font-size: 15px; padding-block: 12px; }
.duanwu-portrait { width: min(100%, 390px); justify-self: end; }
.portrait-paper { padding: 10px; background: var(--surface); border: 1px solid var(--line); border-radius: 30px; box-shadow: 0 14px 32px #09234c0d; transform: rotate(3deg); }
.portrait-paper img { width: 100%; border-radius: 22px; }
.duanwu-portrait figcaption { margin-top: 17px; display: flex; justify-content: center; gap: 4px; color: var(--secondary); font-size: 14px; line-height: 1.65; }
.duanwu-portrait figcaption svg { margin-top: -4px; }
.section { padding-block: 72px; border-top: 1px solid var(--line); }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 32px; margin-bottom: 40px; }
h2 { font-size: clamp(30px, 3.2vw, 42px); font-weight: 750; line-height: 1.18; letter-spacing: -.025em; text-wrap: balance; }
.section-intro { margin-top: 13px; color: var(--secondary); font-size: 18px; line-height: 1.6; }
.platform-note { color: var(--secondary); font-size: 14px; white-space: nowrap; }
.product-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.day-sheet { padding: 26px 30px 18px; background: var(--surface); border: 1px solid var(--line); border-radius: 4px 20px 20px 4px; box-shadow: 0 8px 24px #09234c08; }
.sheet-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; font-weight: 700; font-size: 18px; padding-bottom: 19px; border-bottom: 1px solid var(--line); }
.sheet-heading svg { color: #7c622d; }
.sample-plans { list-style: none; padding: 0; margin: 0; }
.sample-plans li { display: flex; gap: 24px; padding-block: 25px; border-bottom: 1px solid #e6decc; }
.sample-plans time { color: var(--secondary); font-size: 14px; line-height: 24px; font-variant-numeric: tabular-nums; }
.sample-plans strong { display: block; font-size: 16px; line-height: 24px; font-weight: 650; }
.sample-plans li span { display: block; color: var(--secondary); font-size: 13px; line-height: 1.6; margin-top: 5px; }
.day-sheet figcaption { color: var(--secondary); font-size: 12px; line-height: 1.6; padding-top: 17px; }
.features > div + div { margin-top: 28px; padding-top: 28px; border-top: 1px solid var(--line); }
.features dt { font-size: 20px; line-height: 1.35; font-weight: 700; }
.features dd { color: var(--secondary); font-size: 16px; line-height: 1.75; margin-top: 8px; max-width: 45ch; }
.release-note { color: var(--secondary); font-size: 13px; line-height: 1.7; margin-top: 29px; max-width: 52ch; }
.studio-section { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; padding-block: 82px 96px; }
.studio-copy p { color: var(--secondary); font-size: 18px; line-height: 1.8; max-width: 48ch; }
.studio-copy p + p { margin-top: 20px; }
.support-section { background: #fff0cf; border-block: 1px solid var(--line); }
.support-inner { display: grid; grid-template-columns: 1.3fr 1fr; align-items: center; gap: 80px; padding-block: 64px; }
.support-inner p { color: var(--secondary); max-width: 51ch; margin-top: 18px; font-size: 16px; line-height: 1.75; }
.contact { display: flex; flex-direction: column; align-items: flex-start; justify-self: end; gap: 16px; }
.button-ink { color: var(--paper); background: var(--ink); min-width: 206px; }
.button-ink:hover { background: #1c3b65; box-shadow: 0 5px 16px #09234c14; }
.button-ink:focus-visible { outline-color: var(--ink); }
.email-address { color: var(--secondary); font-size: 14px; overflow-wrap: anywhere; }
.site-footer { padding-block: 30px 36px; display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; color: var(--secondary); font-size: 12px; line-height: 1.8; }
.site-footer span { flex-shrink: 0; }
.site-footer p { max-width: 62ch; text-align: right; }
.not-found { min-height: calc(100svh - 205px); display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: 24px; padding-block: 80px; }
.not-found p { max-width: 44ch; color: var(--secondary); font-size: 18px; line-height: 1.7; }
html[lang="zh-CN"] h1 { line-height: 1.2; letter-spacing: .015em; }
html[lang="zh-CN"] h2 { letter-spacing: .015em; line-height: 1.35; }
html[lang="zh-CN"] .hero-description { max-width: 25em; }

@media (max-width: 900px) {
  .wrap { width: calc(100% - 64px); }
  .hero { gap: 44px; padding-block: 70px 80px; }
  .product-layout, .studio-section { gap: 44px; }
  .support-inner { gap: 44px; }
  .hero-actions { gap: 14px; }
  .button { gap: 12px; padding-inline: 18px; }
  .day-sheet { padding-inline: 22px; }
  .sample-plans li { gap: 16px; }
}

@media (max-width: 680px) {
  .wrap { width: calc(100% - 40px); }
  .site-header { min-height: 92px; gap: 12px; flex-wrap: wrap; padding-block: 18px; }
  .brand { font-size: 16px; gap: 10px; }
  .brand img { width: 36px; height: 36px; border-radius: 10px; }
  .navigation { order: 3; margin-left: 0; flex-basis: 100%; gap: 24px; font-size: 14px; }
  .navigation a { padding-block: 4px; }
  .language-switch { margin-left: auto; gap: 5px; }
  .hero { grid-template-columns: 1fr; gap: 43px; padding-block: 48px 56px; }
  h1 { font-size: clamp(40px, 10.2vw, 58px); }
  .hero-description { margin-top: 22px; font-size: 17px; max-width: 39ch; }
  .hero-actions { margin-top: 27px; gap: 20px; }
  .button { min-height: 52px; font-size: 14px; }
  .duanwu-portrait { width: min(73%, 300px); justify-self: center; }
  .duanwu-portrait figcaption { font-size: 12px; margin-top: 13px; }
  .portrait-paper { border-radius: 24px; padding: 8px; }
  .portrait-paper img { border-radius: 17px; }
  .section { padding-block: 46px; }
  .section-heading { display: block; margin-bottom: 29px; }
  .section-intro { font-size: 16px; margin-top: 10px; }
  .platform-note { display: block; margin-top: 16px; font-size: 12px; }
  .product-layout, .studio-section { grid-template-columns: 1fr; gap: 32px; }
  .day-sheet { padding: 23px 22px 17px; }
  .sheet-heading { font-size: 17px; }
  .sample-plans li { gap: 20px; padding-block: 22px; }
  .features dt { font-size: 19px; }
  .features dd { font-size: 15px; }
  .features > div + div { margin-top: 24px; padding-top: 24px; }
  .release-note { margin-top: 26px; }
  .studio-section { padding-block: 49px 56px; gap: 22px; }
  .studio-copy p { font-size: 16px; }
  .studio-copy p + p { margin-top: 16px; }
  .support-inner { grid-template-columns: 1fr; gap: 28px; padding-block: 43px; }
  .support-inner p { font-size: 15px; margin-top: 14px; }
  .contact { justify-self: start; gap: 13px; }
  .site-footer { display: block; padding-block: 24px 30px; }
  .site-footer p { text-align: left; margin-top: 10px; }
  .not-found { padding-block: 58px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}

.product-entry { display: grid; grid-template-columns: 1.25fr 1fr; gap: 80px; align-items: center; }
.product-entry-copy p { max-width: 48ch; color: var(--secondary); font-size: 19px; line-height: 1.75; margin-bottom: 28px; }
.product-entry-note { padding: 40px; border-radius: 26px 4px 26px 4px; background: #fff0cf; font-size: clamp(24px, 3vw, 36px); line-height: 1.4; font-weight: 650; text-wrap: balance; }
.availability-note { font-size: 12px; line-height: 1.7; color: var(--secondary); margin-top: 18px; max-width: 48ch; }
.page-product .hero { padding-block: 76px 88px; }
.page-product h1 { max-width: 12ch; }
html[lang="zh-CN"] .page-product h1 { max-width: 8em; }
.workflow-row { display: grid; grid-template-columns: 1fr 1.3fr; gap: 64px; padding-block: 28px; border-top: 1px solid var(--line); }
h3 { margin: 0; font-size: 22px; line-height: 1.4; font-weight: 700; letter-spacing: -.01em; }
.workflow-row p { color: var(--secondary); font-size: 17px; line-height: 1.75; max-width: 58ch; }
.everyday { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.questions h2 { margin-bottom: 32px; }
details { border-top: 1px solid var(--line); }
details:last-child { border-bottom: 1px solid var(--line); }
summary { padding-block: 24px; font-size: 19px; line-height: 1.5; font-weight: 650; cursor: pointer; }
summary::marker { color: var(--secondary); }
summary:hover { text-decoration: underline; text-underline-offset: 5px; }
details p { color: var(--secondary); font-size: 16px; line-height: 1.8; max-width: 70ch; padding-bottom: 24px; }
details .text-link { display: inline-block; margin-bottom: 16px; }
.download-section { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.download-section .button { flex-shrink: 0; }
@media (max-width: 900px) { .product-entry, .everyday { gap: 44px; } .workflow-row { gap: 40px; } }
@media (max-width: 680px) {
  .product-entry, .everyday, .workflow-row { grid-template-columns: 1fr; gap: 22px; }
  .product-entry-copy p { font-size: 17px; }
  .product-entry-note { padding: 28px; font-size: 26px; }
  .page-product .hero { padding-block: 48px 56px; }
  .workflow-row { padding-block: 24px; gap: 12px; }
  .workflow-row p { font-size: 16px; }
  h3 { font-size: 20px; }
  summary { font-size: 17px; padding-block: 21px; }
  .download-section { flex-direction: column; align-items: flex-start; gap: 24px; }
}
