:root { color-scheme: light; --ink: #1a2528; --muted: #596a70; --line: #dce5e6; --accent: #007a9e; --green: #137953; --pale: #f2f7f7; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif; color: var(--ink); background: #fff; font-synthesis: none; letter-spacing: 0; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; line-height: 1.7; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; color: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid #d69a23; outline-offset: 5px; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.35; font-weight: 700; }
h2 { font-size: 32px; }
h3 { font-size: 19px; }
svg { width: 21px; height: 21px; flex: none; stroke-width: 1.8; }
.container { width: min(1160px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: fixed; top: 8px; left: 8px; padding: 10px 18px; background: white; transform: translateY(-150%); z-index: 100; }
.skip-link:focus { transform: none; }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line); background: #fff; }
.header-inner { height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 11px; color: var(--ink); font-weight: 700; font-size: 18px; flex-shrink: 0; }
.brand img { border-radius: 8px; object-fit: contain; }
.desktop-nav, .header-actions { display: flex; align-items: center; gap: 30px; }
.desktop-nav a { color: var(--muted); font-size: 14px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 50px; padding: 12px 23px; border: 1px solid var(--accent); border-radius: 6px; background: var(--accent); color: white; font-size: 15px; font-weight: 600; text-decoration: none; transition: background .18s, border-color .18s; }
.button:hover { text-decoration: none; background: #006380; border-color: #006380; }
.button-small { min-height: 38px; padding: 6px 15px; font-size: 14px; }
.button-small svg { width: 18px; height: 18px; }
.icon-button { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 6px; background: transparent; flex-shrink: 0; }
.icon-button:hover { background: #e8f0f1; }
.menu-toggle { display: none; }
.mobile-nav { padding: 8px 24px 18px; border-top: 1px solid var(--line); }
.mobile-nav:not([hidden]) { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.mobile-nav a { padding: 7px 8px; color: var(--ink); font-size: 14px; }
.hero { background: var(--pale); text-align: center; }
.hero-content { padding-block: 22px 12px; }
.carousel-band { height: min(610px, calc(100svh - 96px)); min-height: 350px; display: flex; background: var(--pale); }
.free-label { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; color: var(--green); font-size: 13px; font-weight: 650; border-bottom: 1px solid #b5d8c9; }
.free-label svg { width: 15px; height: 15px; }
.hero h1 { font-size: 48px; margin: 9px 0 4px; }
.hero-subtitle { font-size: 23px; }
.hero-copy { color: var(--muted); margin-top: 8px; font-size: 15px; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 23px; margin-top: 20px; }
.text-link { display: inline-flex; align-items: center; gap: 7px; font-size: 14px; }
.text-link svg { width: 17px; height: 17px; }
.release-meta { color: var(--muted); font-size: 12px; margin-top: 12px; }
.release-meta span { margin-inline: 7px; }
.hero-carousel { width: min(440px, calc(100% - 40px)); min-height: 0; flex: none; margin: 14px auto 16px; display: grid; grid-template-rows: minmax(0, 1fr) 36px; gap: 8px; }
.hero-carousel:focus-visible { outline: 3px solid #d69a23; outline-offset: 5px; }
.hero-carousel-stage { display: grid; grid-template-columns: 42px minmax(0, 1fr) 42px; gap: 18px; min-height: 0; align-items: center; }
.hero-slides, .hero-slide { height: 100%; min-height: 0; min-width: 0; }
.hero-slide[hidden] { display: none; }
.carousel-band .hero-image-button { display: flex; align-items: center; justify-content: center; height: 100%; width: 100%; padding: 0; border: 0; border-radius: 0; background: transparent; }
.carousel-band .hero-image-button img { width: auto; height: 100%; max-width: 100%; aspect-ratio: 646 / 1450; object-fit: contain; border-radius: 6px; }
.carousel-arrow { background: #fff; }
.hero-carousel-footer { display: flex; align-items: center; justify-content: center; gap: 10px; }
.carousel-caption { width: 90px; font-size: 12px; color: var(--muted); text-align: right; }
.carousel-dots { display: flex; gap: 0; }
.carousel-dot { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; padding: 0; border: 0; background: transparent; }
.carousel-dot span { width: 8px; height: 8px; border-radius: 50%; background: #94a8af; }
.carousel-dot[aria-pressed="true"] span { width: 20px; border-radius: 4px; background: var(--accent); }
.carousel-dot:hover span { background: var(--accent); }
.platform-band { padding: 27px 0 34px; border-bottom: 1px solid var(--line); }
.section-kicker { color: var(--green); font-size: 13px; font-weight: 600; margin-bottom: 12px; }
.platform-band .section-kicker { text-align: center; color: var(--muted); margin-bottom: 20px; }
.platform-list { margin: 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 25px 44px; }
.platform-list li { display: flex; align-items: center; gap: 9px; font-size: 15px; white-space: nowrap; }
.platform-list img { object-fit: contain; }
.section { padding-block: 76px; }
.section-heading { margin-bottom: 36px; }
.section-heading > p:not(.section-kicker) { color: var(--muted); margin-top: 13px; font-size: 15px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: 44px; row-gap: 36px; }
.feature { border-top: 1px solid var(--line); padding-top: 24px; }
.feature-icon { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 6px; margin-bottom: 16px; }
.cyan { background: #e5f2f7; color: var(--accent); }.green { background: #e5f3ec; color: var(--green); }.gold { background: #fff2d7; color: #876116; }
.feature h3 { margin-bottom: 9px; }
.feature p { color: var(--muted); font-size: 14px; }
.preview-section { background: #f6f8f9; padding-block: 70px; border-block: 1px solid var(--line); }
.screenshot-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; }
figure { margin: 0; min-width: 0; }
.screenshot-button { padding: 0; display: block; width: 100%; border: 1px solid #d2dce0; background: #faf8ff; border-radius: 8px; overflow: hidden; transition: border-color .2s; }
.screenshot-button:hover { border-color: var(--accent); }
.screenshot-button img { width: 100%; height: auto; aspect-ratio: 980 / 2201; object-fit: cover; }
figcaption { display: flex; align-items: center; gap: 12px; font-weight: 600; font-size: 14px; margin-top: 17px; }
figcaption span { font-size: 12px; color: var(--muted); font-weight: 400; font-variant-numeric: tabular-nums; }
.fine-print { color: var(--muted); font-size: 12px; margin-top: 23px; }
.inline-label { display: inline-block; margin-left: 12px; border: 1px solid var(--line); padding: 1px 8px; border-radius: 4px; color: var(--muted); font-size: 12px; }
.updates-section { display: grid; grid-template-columns: 1fr 1.75fr; gap: 60px; }
.change-list { margin: 0; padding: 0; list-style: none; }
.change-list li { display: flex; gap: 12px; margin-bottom: 16px; font-size: 15px; }
.change-list svg { color: var(--green); margin-top: 3px; }
.upgrade-note { display: flex; align-items: flex-start; gap: 12px; padding: 21px 0 0; margin-top: 27px; border-top: 1px solid var(--line); }
.upgrade-note > svg { color: var(--accent); margin-top: 2px; }
.upgrade-note h3 { font-size: 16px; margin-bottom: 8px; }
.upgrade-note p { font-size: 13px; color: var(--muted); margin-top: 7px; }
.faq-section { padding-block: 70px; background: #fafbfb; border-block: 1px solid var(--line); }
.faq-layout { display: grid; grid-template-columns: 1fr 1.75fr; gap: 60px; }
.faq-layout .text-link { margin-top: 22px; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list summary { cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 0; font-size: 15px; font-weight: 600; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary svg { width: 18px; height: 18px; color: var(--muted); transition: transform .15s; }
.faq-list details[open] summary svg { transform: rotate(45deg); }
.faq-list details p { padding-bottom: 22px; color: var(--muted); font-size: 14px; }
.download-section { padding-block: 70px; }
.download-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: 70px; align-items: center; }
.download-layout h2 { font-size: 30px; margin-bottom: 15px; }
.download-layout > div > p:not(.section-kicker):not(.fine-print) { color: var(--muted); font-size: 14px; }
.download-layout .button { margin-top: 23px; }
.download-integrity { border-left: 1px solid var(--line); padding-left: 32px; min-width: 0; }
.download-integrity h3 { font-size: 16px; margin-bottom: 9px; }
.download-integrity p { font-size: 12px; color: var(--muted); }
.hash-row { display: flex; gap: 15px; align-items: center; margin-top: 12px; }
.hash-row code { overflow-wrap: anywhere; font-size: 12px; line-height: 1.8; font-family: ui-monospace, Consolas, monospace; min-width: 0; }
.copy-status { min-height: 26px; margin-top: 6px; }
.site-footer { border-top: 1px solid var(--line); padding-block: 28px; }
.footer-inner { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; }
.footer-inner .brand { font-size: 15px; }
.footer-inner p { font-size: 12px; color: var(--muted); }
.footer-inner nav { margin-left: auto; display: flex; flex-wrap: wrap; gap: 20px; }
.footer-inner nav a { color: var(--muted); font-size: 12px; }
.screenshot-dialog { max-width: min(600px, calc(100vw - 32px)); width: auto; max-height: calc(100svh - 32px); padding: 0; border: 1px solid var(--line); border-radius: 8px; background: #faf8ff; }
.screenshot-dialog::backdrop { background: rgb(20 30 32 / .7); }
.dialog-toolbar { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; background: white; border-bottom: 1px solid var(--line); position: sticky; top: 0; }
.dialog-toolbar p { font-size: 14px; font-weight: 600; }
.screenshot-dialog > img { max-height: calc(100svh - 100px); height: auto; width: auto; margin: auto; }
.document { max-width: 830px; padding-block: 56px 80px; }
.document h1 { font-size: 34px; margin-bottom: 17px; }
.document h2 { font-size: 22px; margin-block: 32px 14px; }
.document p, .document li { color: var(--muted); font-size: 15px; margin-block: 12px; overflow-wrap: anywhere; }
.document ul { padding-left: 22px; }
.document .text-link { margin-bottom: 25px; }
.document .license-list { list-style: none; padding: 0; }
.license-list li { padding: 15px 0; border-bottom: 1px solid var(--line); }
@media (max-width: 900px) { .container { width: calc(100% - 40px); }.desktop-nav { gap: 20px; }.platform-list { gap: 20px 30px; }.feature-grid { column-gap: 25px; }.screenshot-grid { gap: 18px; }.updates-section, .faq-layout { gap: 30px; }.download-layout { gap: 30px; }.footer-inner nav { margin-left: 0; width: 100%; } }
@media (max-width: 600px) {
  html { scroll-padding-top: 80px; }.header-inner { height: 64px; gap: 12px; }.brand { font-size: 16px; gap: 8px; }.brand img { width: 32px; height: 32px; }.desktop-nav { display: none; }.header-actions { gap: 9px; }.menu-toggle { display: inline-flex; width: 38px; height: 38px; }.button-small { padding-inline: 11px; }
  .hero-content { padding-top: 18px; }.hero h1 { font-size: 36px; margin-top: 8px; }.hero-subtitle { font-size: 20px; }.hero-copy { font-size: 13px; }.hero-actions { gap: 12px; margin-top: 15px; }.hero-actions .button { font-size: 14px; padding-inline: 16px; min-height: 46px; }.hero-actions .text-link { font-size: 12px; }.release-meta { font-size: 11px; margin-top: 9px; }.release-meta span { margin-inline: 4px; }.hero-carousel-stage { gap: 10px; }
  .platform-band { padding: 25px 0 29px; }.platform-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 19px 8px; }.platform-list li { font-size: 13px; justify-content: center; gap: 6px; }.platform-list img { width: 26px; height: 26px; }.section { padding-block: 49px; }h2 { font-size: 26px; }.section-heading { margin-bottom: 28px; }.section-heading > p:not(.section-kicker) { font-size: 14px; }.feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 22px; }.feature { padding-top: 19px; }.feature h3 { font-size: 16px; }.feature p { font-size: 13px; }.feature-icon { margin-bottom: 13px; }
  .preview-section { padding-block: 49px; }.screenshot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 18px; }.screenshot-button { border-radius: 6px; }figcaption { font-size: 13px; margin-top: 12px; gap: 8px; }.fine-print { font-size: 11px; }.updates-section, .faq-layout, .download-layout { grid-template-columns: minmax(0, 1fr); gap: 12px; }.change-list li { font-size: 14px; }.faq-section { padding-block: 49px; }.faq-list summary { font-size: 14px; padding-block: 17px; }.faq-list details p { font-size: 13px; }.download-section { padding-block: 49px; }.download-layout h2 { font-size: 26px; }.download-integrity { border-left: 0; border-top: 1px solid var(--line); padding: 25px 0 0; margin-top: 25px; }.footer-inner { gap: 15px; }.footer-inner nav { gap: 13px 19px; }.document { padding-block: 36px 60px; }.document h1 { font-size: 28px; }.document h2 { font-size: 20px; }
}
@media (max-height: 650px) { .hero-content { padding-top: 10px; }.hero h1 { font-size: 36px; margin-top: 6px; }.hero-subtitle { font-size: 18px; }.hero-copy { margin-top: 4px; }.hero-actions { margin-top: 10px; }.hero-carousel { margin-block: 10px 10px; gap: 4px; } }
@media (max-width: 360px) { .hero-actions { gap: 8px; }.hero-content { padding-top: 10px; }.hero h1 { font-size: 32px; }.hero-actions .button { font-size: 12px; padding-inline: 12px; }.hero-carousel-stage { gap: 6px; }.feature-grid { gap: 25px 15px; }.platform-list li { font-size: 12px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; }* { transition: none !important; } }