:root {
  --paper: #fafafd; --white: #fff; --purple: #6567e8; --ink: #282431;
  --muted: #817c90; --line: #e6e3ef; --mist: #edecf8;
  --sans: 'HarmonyOS Sans SC', 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', sans-serif;
  --mono: 'Sarasa Mono SC', 'Cascadia Code', Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 28px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.7 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible { outline: 3px solid var(--purple); outline-offset: 5px; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, h4, p, figure { margin: 0; }
::selection { background: #dcdbfb; color: var(--ink); }
.wrap { width: min(1240px, calc(100% - 96px)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip-link { position: fixed; z-index: 10; top: 12px; left: 12px; padding: 10px 18px; background: var(--ink); color: white; border-radius: 6px; transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.site-header { min-height: 100px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 23px; font-weight: 700; }
.brand > span { display: flex; align-items: baseline; gap: 13px; }
.brand-en { font-size: 11px; letter-spacing: .075em; font-weight: 500; color: var(--muted); }
.release-status { display: inline-flex; gap: 8px; align-items: center; font-size: 12px; font-weight: 500; letter-spacing: .04em; color: #79728c; }
.release-status i { width: 5px; height: 5px; background: var(--purple); border-radius: 50%; }
.hero { position: relative; padding-top: 38px; }
.hero-copy { text-align: center; position: relative; z-index: 1; }
.product-category { font-size: 14px; font-weight: 500; letter-spacing: .055em; color: #746c84; }
.product-category span { padding-inline: 5px; }
.hero h1 { font-size: clamp(66px, 7.4vw, 106px); line-height: 1.3; letter-spacing: -.075em; font-weight: 750; margin: 15px 0 43px; }
.hero h1 > span { color: var(--purple); }
.product-showcase { --unfold: 1; position: relative; padding: 0 12px; }
.product-showcase::before { content: ''; position: absolute; inset: 16% -4% 8%; z-index: -1; background: #eae8f8; border-radius: 48% 48% 12% 12%; filter: blur(40px); opacity: .65; }
.product-stage { position: relative; width: 100%; aspect-ratio: 3120/1910; overflow: hidden; border: 1px solid #d8d4e4; border-radius: 12px; background: #f0eef8; box-shadow: 0 1px 2px #2521350a, 0 15px 35px -15px #25213525, 0 55px 70px -50px #25213540; transform: perspective(2200px) rotateX(calc((1 - var(--unfold)) * 6deg)) scale(calc(.965 + var(--unfold) * .035)); transform-origin: center 10%; }
.product-panel { position: absolute; inset: 0; opacity: 1; visibility: visible; transition: opacity 280ms ease, visibility 0s; }
.product-panel[aria-hidden='true'] { opacity: 0; visibility: hidden; pointer-events: none; transition: opacity 280ms ease, visibility 0s 280ms; }
.product-panel img { width: 100%; max-width: none; }
.product-panel:focus-visible { outline: 3px solid var(--purple); outline-offset: -4px; }
.product-tabs { display: flex; justify-content: center; gap: 4px; width: max-content; margin: 27px auto 0; padding: 4px; border: 1px solid #e3dfed; background: #f0eef7; border-radius: 999px; }
.product-tabs button { border: 0; background: transparent; padding: 7px 27px; border-radius: 999px; color: var(--muted); font-size: 12px; line-height: 1.6; transition: color 180ms, background 180ms, box-shadow 180ms; }
.product-tabs button:hover { color: var(--ink); }
.product-tabs button[aria-selected='true'] { color: var(--ink); background: white; box-shadow: 0 1px 4px #3025400a; }
.expression { display: grid; grid-template-columns: .82fr 1.4fr; gap: clamp(64px, 9vw, 135px); align-items: start; padding-top: 160px; padding-bottom: 160px; }
.expression-heading { position: sticky; top: 115px; padding-top: 28px; }
.expression-heading h2 { font-size: clamp(46px, 4.8vw, 66px); line-height: 1.33; font-weight: 680; letter-spacing: -.065em; }
.expression-heading h2 span { color: var(--purple); }
.syntax-types { display: flex; align-items: center; gap: 28px; margin-top: 43px; color: #b5afd0; font: 25px/1 var(--mono); }
.syntax-types span:last-child { font: 35px/1 Georgia, serif; }
.field-journal { min-width: 0; background: var(--white); border: 1px solid #e9e5ef; border-radius: 3px; box-shadow: 0 3px 7px #28243102, 0 16px 44px -20px #28243117; }
.journal-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 0 16px; padding: 32px 43px 35px; }
.journal-file { color: #9d96a9; font-size: 10px; }
.journal-date { color: #aaa3b4; font-size: 8px; letter-spacing: .12em; }
.journal-heading h3 { flex-basis: 100%; margin-top: 41px; font-size: 43px; line-height: 1.35; letter-spacing: -.06em; font-weight: 650; }
.journal-heading p { margin-top: 16px; color: #8e859c; font-size: 12px; }
.journal-photo { margin: 0 14px; position: relative; }
.journal-photo img { width: 100%; aspect-ratio: 2/1; object-fit: cover; border-radius: 2px; }
.journal-photo figcaption { position: absolute; left: 22px; bottom: 15px; color: #fff; font-size: 10px; letter-spacing: .22em; text-shadow: 0 1px 8px #203a4570; }
.journal-body { padding: 34px 43px 24px; }
.journal-intro { color: #645e70; font-size: 16px; line-height: 2.05; }
blockquote { margin: 23px 0 0; padding-left: 17px; border-left: 2px solid #bbb4dd; color: #82768f; font-size: 14px; }
.journal-section { margin-top: 36px; }
.journal-section h4 { font-size: 17px; font-weight: 600; margin-bottom: 15px; }
table { border-collapse: collapse; width: 100%; text-align: left; font-size: 13px; color: #686171; }
th, td { padding: 13px 10px; border-bottom: 1px solid #eae6f0; white-space: nowrap; }
th { color: #8b8198; background: #f8f7fb; font-weight: 400; font-size: 12px; }
td:nth-child(2) { color: #8f87a1; font-family: var(--mono); font-size: 12px; }
.table-dot { display: inline-block; margin-right: 8px; width: 5px; height: 5px; border-radius: 50%; vertical-align: middle; }
.pine { background: #87a08d; }.ridge { background: #a5a0b9; }.lake { background: #84a9c1; }
.code-section { background: #f5f4fb; border: 1px solid #edeaf5; padding: 17px 18px 0; border-radius: 6px; }
.code-topline { display: flex; justify-content: space-between; gap: 10px; font-size: 11px; color: #8b82a0; }
pre { margin: 20px 0; font: 14px/1.85 var(--mono); overflow-x: auto; tab-size: 2; color: #575273; }
.token-muted { color: #9f99b1; }.token-keyword { color: #7866cf; }.token-number { color: #bd8870; }.token-function { color: #527f90; }
.trail-section { margin-top: 32px; }
.trail { padding: 0; margin: 0; list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 33px; }
.trail li { position: relative; display: flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid #dcd7ea; border-radius: 8px; padding-block: 12px; color: #877a99; font-size: 11px; }
.trail li + li::before { content: ''; position: absolute; top: 50%; right: 100%; width: 34px; height: 1px; background: #cbc3dc; }
.trail li + li::after { content: ''; position: absolute; top: calc(50% - 2px); right: calc(100% + 2px); width: 4px; height: 4px; transform: rotate(45deg); border-top: 1px solid #cbc3dc; border-right: 1px solid #cbc3dc; }
.trail-pin { width: 4px; height: 4px; border-radius: 50%; background: #b0a7c7; }
.journal-footer { display: flex; justify-content: space-between; gap: 20px; margin-top: 36px; padding-top: 19px; border-top: 1px solid #efecf3; color: #a69dae; font-size: 8px; }
.ownership { background: #efedf7; overflow: hidden; }
.ownership-inner { display: grid; grid-template-columns: 1.05fr 1fr; gap: 60px; align-items: center; padding-block: 120px; }
.ownership-copy h2 { font-size: clamp(44px, 4.7vw, 65px); line-height: 1.4; font-weight: 650; letter-spacing: -.055em; }
.ownership-copy h2 > span { color: #8d82a9; }
.ownership-copy p { margin-top: 24px; font-size: 12px; letter-spacing: .04em; color: #9b8eae; }
.document-object { position: relative; width: 330px; max-width: 90%; margin: auto; isolation: isolate; transform: rotate(5deg); }
.document-back { position: absolute; z-index: -1; inset: 5px 0 -4px; border: 1px solid #d9d1e7; border-radius: 7px; background: #e3dfee; transform: rotate(-10deg); }
.document-face { padding: 22px; background: #fff; border: 1px solid #e6e0ef; border-radius: 6px; box-shadow: 0 5px 10px #34294505, 0 25px 40px -20px #34294525; }
.document-name { display: flex; align-items: center; gap: 9px; margin-bottom: 20px; font-size: 10px; color: #8c809a; }
.document-name img { width: 22px; }
.saved-dot { width: 5px; height: 5px; margin-left: auto; background: #9bb3a8; border-radius: 50%; }
.document-cover { position: relative; }
.document-cover img { width: 100%; aspect-ratio: 1.3; object-fit: cover; border-radius: 2px; }
.document-cover > span { position: absolute; bottom: 19px; left: 19px; color: white; font-size: 23px; letter-spacing: .02em; text-shadow: 0 1px 6px #243e4950; }
.document-extension { display: flex; align-items: flex-end; justify-content: space-between; padding-top: 18px; font-size: 54px; color: #9b91b1; font-weight: 600; letter-spacing: -.06em; line-height: 1.3; }
.document-extension > span { font-size: 8px; color: #afa5bb; font-weight: 400; letter-spacing: 0; padding-bottom: 8px; }
.closing { padding-block: 105px 95px; display: flex; flex-direction: column; align-items: center; text-align: center; }
.closing-icon { margin-bottom: 19px; }
.closing-name { display: flex; align-items: baseline; gap: 12px; font-size: 27px; font-weight: 650; }
.closing-name > span { font-size: 13px; color: var(--muted); font-weight: 400; }
.closing-platform { font-size: 17px; color: #7e748f; margin: 13px 0 22px; }
.site-footer { border-top: 1px solid var(--line); min-height: 81px; display: flex; align-items: center; justify-content: space-between; gap: 24px; font-size: 10px; color: #a39aaf; }
.reveal { opacity: 1; translate: 0 0; transition: opacity 680ms ease, translate 800ms cubic-bezier(.2,.7,.2,1); }
.reveal[data-visible='false'] { opacity: 0; translate: 0 24px; }
@media (min-width: 1600px) {
  .wrap { width: min(1380px, calc(100% - 140px)); }.hero h1 { font-size: 112px; }.hero { padding-top: 60px; }.expression { padding-block: 190px; }.field-journal { max-width: 720px; }
}
@media (max-width: 1100px) {
  .wrap { width: calc(100% - 64px); }.hero h1 { font-size: 76px; }.hero { padding-top: 32px; }.expression { gap: 55px; grid-template-columns: .7fr 1.4fr; padding-block: 120px; }.expression-heading h2 { font-size: 46px; }.journal-heading { padding-inline: 30px; }.journal-body { padding-inline: 30px; }.journal-heading h3 { font-size: 37px; }.ownership-copy h2 { font-size: 46px; }.ownership-inner { gap: 35px; }.document-object { width: 290px; }
}
@media (max-width: 800px) {
  .wrap { width: calc(100% - 44px); }.site-header { min-height: 83px; }.brand { font-size: 20px; }.brand-en { display: none; }.hero { padding-top: 35px; }.hero h1 { font-size: 62px; letter-spacing: -.075em; margin-bottom: 32px; }.product-category { font-size: 11px; }.product-showcase { padding: 0; }.product-stage { border-radius: 7px; }.product-tabs { margin-top: 20px; }.product-tabs button { font-size: 11px; padding: 6px 22px; }.expression { gap: 35px; grid-template-columns: .6fr 1.4fr; padding-block: 95px; }.expression-heading { top: 65px; }.expression-heading h2 { font-size: 37px; }.syntax-types { gap: 18px; font-size: 20px; }.syntax-types span:last-child { font-size: 28px; }.journal-heading { padding: 24px 23px; }.journal-heading h3 { font-size: 33px; margin-top: 28px; }.journal-date { font-size: 6px; }.journal-heading p { font-size: 10px; }.journal-body { padding: 25px 23px 20px; }.journal-intro { font-size: 12px; }.desktop-break { display: none; }blockquote { font-size: 11px; }th, td { padding-inline: 5px; font-size: 9px; }.table-dot { margin-right: 4px; }.code-section { padding-inline: 12px; }pre { font-size: 10px; }.trail { gap: 20px; }.trail li { font-size: 10px; }.trail li + li::before { width: 21px; }.journal-footer { font-size: 7px; }.ownership-inner { padding-block: 85px; gap: 30px; }.ownership-copy h2 { font-size: 39px; }.ownership-copy p { font-size: 10px; }.document-object { width: 265px; }.document-face { padding: 18px; }.document-extension { font-size: 45px; }.document-extension > span { font-size: 7px; }.closing { padding-block: 85px; }
}
@media (max-width: 600px) {
  .wrap { width: calc(100% - 36px); }.site-header { min-height: 75px; gap: 16px; }.brand img { width: 32px; }.brand { font-size: 19px; gap: 8px; }.release-status { font-size: 10px; gap: 6px; }
  .hero { padding-top: 32px; }.product-category { font-size: 10px; letter-spacing: .025em; }.hero h1 { font-size: clamp(50px, 13vw, 70px); line-height: 1.22; margin-top: 20px; margin-bottom: 34px; }.hero h1 > span { display: block; }.product-stage { aspect-ratio: 3120/1910; transform: none; }.product-tabs { margin-top: 17px; }.product-showcase::before { inset: 10% 0 15%; filter: blur(20px); }
  .expression { grid-template-columns: 1fr; gap: 35px; padding-block: 82px; }.expression-heading { position: static; padding: 0; }.expression-heading h2 { font-size: 37px; line-height: 1.3; }.expression-heading h2 br:nth-of-type(2) { display: none; }.syntax-types { display: none; }
  .journal-heading { padding: 25px 25px 28px; }.journal-file { font-size: 9px; }.journal-date { font-size: 7px; }.journal-heading h3 { font-size: 36px; margin-top: 34px; }.journal-heading p { font-size: 10px; }.journal-photo { margin-inline: 9px; }.journal-photo figcaption { left: 14px; bottom: 10px; font-size: 8px; }.journal-body { padding: 25px; }.journal-intro { font-size: 12px; }blockquote { font-size: 11px; padding-left: 12px; }.journal-section { margin-top: 28px; }.journal-section h4 { font-size: 15px; }th, td { padding-block: 12px; font-size: 10px; }th { font-size: 9px; }.code-section { padding-inline: 12px; }.code-topline { font-size: 8px; }pre { font-size: 10px; margin-block: 17px; }.journal-footer { margin-top: 30px; }
  .ownership-inner { grid-template-columns: 1fr; gap: 55px; padding-block: 72px 85px; }.ownership-copy h2 { font-size: 39px; }.ownership-copy p { margin-top: 15px; font-size: 10px; }.document-object { width: 265px; }.document-name { font-size: 9px; }.document-cover > span { font-size: 22px; }.closing { padding-block: 75px 66px; }.closing-icon { width: 66px; }.closing-name { font-size: 23px; }.closing-name > span { font-size: 11px; }.closing-platform { font-size: 15px; }.site-footer { font-size: 8px; min-height: 68px; }
}
@media (max-width: 360px) {
  .site-header { gap: 12px; }.hero h1 { font-size: 48px; }.product-category { font-size: 9px; }.expression-heading h2 { font-size: 34px; }.syntax-types { display: none; }.journal-heading, .journal-body { padding-inline: 20px; }.ownership-copy h2 { font-size: 35px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }*, *::before, *::after { animation: none !important; transition: none !important; }.product-stage { transform: none; }.reveal { opacity: 1 !important; translate: none !important; }
}