:root {
  color-scheme: light;
  --font-body: 1.125rem; --font-secondary: 1rem; --font-small: .875rem;
  --bg: #f4f6f9; --surface: #fff; --text: #1e2b40; --muted: #526176;
  --line: #c9d2df; --accent: #174e98; --accent-soft: #e5edf9; --orange: #b52332;
  --marker: #b52332; --signal: #d5a200;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #171222; --surface: #211a30; --text: #eee9f5; --muted: #b3a8c4;
    --line: #433452; --accent: #b1f35b; --accent-soft: #2d352b; --orange: #ffae65;
    --marker: #b1f35b; --signal: #b1f35b;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #171222; --surface: #211a30; --text: #eee9f5; --muted: #b3a8c4;
  --line: #433452; --accent: #b1f35b; --accent-soft: #2d352b; --orange: #ffae65;
  --marker: #b1f35b; --signal: #b1f35b;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body { font-size: var(--font-body); line-height: 1.85; margin: 0; background: var(--bg); color: var(--text); font-family: "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", sans-serif; -webkit-font-smoothing: antialiased; }
::selection { background: var(--accent); color: var(--bg); }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
a, button { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 6px; }
.page { width: min(1080px, calc(100% - 112px)); margin: auto; }
.site-header { display: flex; align-items: center; gap: 28px; min-height: 108px; border-bottom: 1px solid var(--line); }
.header-controls { display: flex; align-items: center; gap: 12px; }
.language-control, .theme-control { display: flex; align-items: stretch; border: 1px solid var(--line); border-radius: 24px; }
.language-toggle, .theme-toggle { display: grid; place-items: center; min-width: 48px; min-height: 44px; border: 0; border-radius: 24px 0 0 24px; background: transparent; color: var(--accent); font-size: 18px; font-weight: 600; cursor: pointer; }
.language-menu, .theme-menu { position: relative; border-left: 1px solid var(--line); }
.language-menu summary, .theme-menu summary { display: grid; place-items: center; min-width: 32px; min-height: 44px; border-radius: 0 24px 24px 0; color: var(--muted); cursor: pointer; list-style: none; }
.language-menu summary::-webkit-details-marker, .theme-menu summary::-webkit-details-marker { display: none; }
.language-toggle:hover, .theme-toggle:hover, .language-menu summary:hover, .theme-menu summary:hover { background: var(--accent-soft); color: var(--accent); }
.language-options, .theme-options { position: absolute; top: calc(100% + 10px); left: -49px; z-index: 10; min-width: 205px; padding: 6px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); box-shadow: 0 8px 24px #0002; }
.theme-options { left: auto; right: 0; }
.language-options a, .theme-options button { display: flex; gap: 12px; align-items: center; min-height: 44px; padding: 8px 12px; border-radius: 5px; font-size: var(--font-small); color: var(--text); }
.theme-options button { width: 100%; border: 0; background: transparent; text-align: left; cursor: pointer; }
.language-options a:hover, .language-options a[aria-current="true"], .theme-options button:hover, .theme-options button[aria-pressed="true"] { color: var(--accent); background: var(--accent-soft); }
.language-option-symbol, .theme-option-symbol { min-width: 26px; text-align: center; font-size: 16px; font-weight: 600; }
.language-option-symbol { display: inline-flex; align-items: center; justify-content: center; }
.language-globe { display: block; width: 20px; height: 20px; }
.wordmark { font-size: 25px; font-weight: 750; letter-spacing: -1.3px; margin-right: auto; }
.wordmark > span:first-child { font-weight: 400; }
.accent-dot { color: var(--marker); }
nav { display: flex; gap: 30px; font-size: var(--font-secondary); }
nav a:hover, footer a:hover { color: var(--accent); }
.intro { display: grid; grid-template-columns: 1fr 270px; gap: 72px; padding: 92px 0 88px; align-items: center; }
.eyebrow { font-family: Consolas, "SFMono-Regular", monospace; color: var(--accent); font-size: var(--font-small); line-height: 1.6; letter-spacing: 1.8px; margin: 0 0 18px; }
.status-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--signal); margin-right: 6px; vertical-align: 2px; }
h1 { font-size: clamp(32px, 3.5vw, 46px); line-height: 1.4; letter-spacing: -1.6px; margin: 0 0 24px; font-weight: 600; }
h1 > span { display: block; font-size: clamp(58px, 6.5vw, 82px); font-weight: 750; letter-spacing: -4px; line-height: 1.1; }
.bio { font-size: 1.375rem; line-height: 1.9; margin: 28px 0 12px; }
.intro-note { font-size: var(--font-secondary); line-height: 1.9; color: var(--muted); margin: 0 0 28px; }
.text-link { display: inline-flex; align-items: center; gap: 28px; color: var(--accent); border-bottom: 1px solid var(--accent); padding-bottom: 7px; font-size: var(--font-secondary); font-weight: 600; }
.text-link:hover { color: var(--orange); border-color: var(--orange); }
.portrait { margin: 24px 0 0; }
.portrait-frame { padding: 12px; border: 1px solid var(--line); position: relative; background: var(--surface); }
.portrait-frame::before { content: ""; position: absolute; top: -9px; right: -9px; width: 48px; height: 48px; border-top: 2px solid var(--marker); border-right: 2px solid var(--signal); }
.portrait img { width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; display: block; }
figcaption { display: flex; justify-content: space-between; margin-top: 16px; font-family: Consolas, monospace; font-size: 11px; letter-spacing: 2px; color: var(--muted); }
figcaption span { color: var(--orange); }
.section { padding: 44px 0 56px; border-top: 1px solid var(--line); }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 30px; }
.section-heading .eyebrow { margin-bottom: 7px; font-size: var(--font-small); }
h2 { font-size: 29px; letter-spacing: -.8px; font-weight: 600; margin: 0; }
.section-note { color: var(--muted); font-size: var(--font-secondary); margin: 0 0 4px; }
.article-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.article-card { padding: 27px 28px 18px; border: 1px solid var(--line); background: var(--surface); display: flex; flex-direction: column; }
.article-top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; font-size: var(--font-small); }
.category { background: var(--accent-soft); color: var(--accent); padding: 5px 9px; font-weight: 600; }
.article-top > a { color: var(--muted); }
.article-top > a:hover { color: var(--accent); }
.article-description { font-size: var(--font-secondary); color: var(--muted); line-height: 1.8; margin: 20px 0 26px; }
.latest-post { border-top: 1px solid var(--line); padding-top: 20px; flex: 1; }
.post-meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; color: var(--muted); font-size: var(--font-small); letter-spacing: 1px; margin: 0 0 12px; }
time { font-family: Consolas, monospace; }
h3 { margin: 0; }
.latest-post h3 { font-size: 1.25rem; line-height: 1.8; font-weight: 600; }
.post-link:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 5px; }
.feed-status { color: var(--muted); font-size: var(--font-small); margin: 20px 0 0; min-height: 14px; }
.tools { padding-top: 44px; }
.tool-list { border-top: 1px solid var(--line); }
.tool { display: grid; grid-template-columns: 68px 160px 1fr 24px; gap: 24px; align-items: center; border-bottom: 1px solid var(--line); padding: 26px 12px; transition: background .18s; }
.tool:hover { background: var(--surface); }
.tool-inspiration a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.tool-inspiration a:hover { color: var(--orange); }
.tool-icon { width: 64px; height: 64px; background: #fff; border: 1px solid #e2e1e7; border-radius: 14px; display: grid; place-items: center; }
.tool-icon img { width: 46px; height: 46px; object-fit: contain; }
.tool-name h3 { font-size: 23px; letter-spacing: -.6px; font-weight: 650; }
.tool-content { min-width: 0; }
.tool-name > span { display: inline-block; margin-top: 5px; font-size: var(--font-small); color: var(--muted); }
.tool p { margin: 0; color: var(--muted); font-size: var(--font-body); line-height: 1.9; }
.tool strong { color: var(--text); font-weight: 600; }
.tool-detail { display: block; margin-top: 5px; font-size: var(--font-small); }
.platform-note { color: var(--muted); font-size: var(--font-small); line-height: 1.9; margin: -10px 0 22px; }
.tool-arrow { display: grid; place-items: center; min-height: 44px; font-size: 23px; color: var(--accent); }
.tool-icon:hover, .tool-link:hover, .tool-arrow:hover { color: var(--orange); }
.all-projects { margin: 26px 0 0; }
.tool-name > .platform { display: block; color: var(--accent); font-family: Consolas, monospace; font-size: var(--font-small); margin-top: 9px; }
.tool-name > .tool-inspiration { display: block; font-size: var(--font-small); line-height: 1.7; margin-top: 7px; }
.tool-downloads { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tool-download { min-height: 44px; display: inline-flex; align-items: center; gap: 7px; padding: 7px 10px; border: 1px solid var(--accent); border-radius: 4px; color: var(--accent); font-size: var(--font-small); line-height: 1.5; }
.tool-download:hover { background: var(--accent-soft); }
.tool-download[aria-disabled="true"] { color: var(--muted); border-color: var(--line); cursor: default; background: transparent; }
.release-notes { align-self: center; color: var(--accent); font-size: var(--font-small); line-height: 1.8; }
.release-notes:hover { text-decoration: underline; text-underline-offset: 3px; }
.download-status { flex-basis: 100%; color: var(--muted); font-size: var(--font-small); line-height: 1.7; }
.contact-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.contact-links > a { display: grid; grid-template-columns: 1fr auto; gap: 14px; padding: 23px; background: var(--surface); border: 1px solid var(--line); font-size: var(--font-secondary); }
.contact-icon { grid-column: 1; grid-row: 1; width: 26px; height: 26px; color: var(--accent); }
.contact-label { grid-column: 1; grid-row: 2; color: var(--muted); font-size: var(--font-small); }
.contact-value { grid-column: 1; grid-row: 3; overflow-wrap: anywhere; }
.contact-arrow { grid-column: 2; grid-row: 1 / 4; align-self: center; color: var(--accent); font-size: 22px; }
.contact-links > a:hover { border-color: var(--accent); }
footer { flex-wrap: wrap; border-top: 1px solid var(--line); padding: 26px 0 32px; display: flex; justify-content: space-between; gap: 16px; color: var(--muted); font-size: var(--font-small); }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 5; padding: 12px; background: var(--surface); color: var(--text); }
.skip-link:focus { top: 12px; }
@media (max-width: 1000px) {
  .site-header { flex-wrap: wrap; gap: 20px; padding: 24px 0; }
  nav { order: 3; width: 100%; flex-wrap: wrap; }
}
@media (max-width: 850px) {
  .page { width: calc(100% - 64px); }
  .intro { grid-template-columns: 1fr 210px; gap: 36px; padding: 68px 0; }
  .bio { font-size: 1.25rem; }
  .tool { grid-template-columns: 56px minmax(0, 1fr) 24px; gap: 18px; padding-inline: 0; }
  .tool-content { min-width: 0; grid-column: 1 / -1; grid-row: 2; }
  .tool-arrow { grid-column: 3; grid-row: 1; }
  .tool-icon { width: 54px; height: 54px; }
  .tool-icon img { width: 40px; height: 40px; }
  .section-note { max-width: 230px; line-height: 1.8; }
}
@media (max-width: 600px) {
  .page { width: calc(100% - 40px); }
  .site-header { flex-wrap: wrap; gap: 20px; min-height: 100px; padding: 20px 0; }
  .wordmark { font-size: 23px; }
  .header-controls { order: 3; width: 100%; justify-content: space-between; flex-wrap: wrap; }
  nav { order: 2; width: 100%; gap: 26px; font-size: var(--font-secondary); }
  .intro { grid-template-columns: 1fr; gap: 32px; padding: 48px 0; }
  .intro-copy { order: 2; }
  .portrait { width: 156px; margin: 0; }
  .portrait-frame { padding: 7px; }
  figcaption { font-size: 10px; letter-spacing: 1px; margin-top: 11px; }
  h1 { font-size: 29px; margin-bottom: 18px; }
  h1 > span { font-size: 64px; letter-spacing: -3px; }
  .bio { margin-top: 20px; font-size: 1.25rem; }
  .intro-note { font-size: var(--font-secondary); }
  .section { padding: 32px 0 40px; }
  .section-heading { display: block; margin-bottom: 24px; }
  h2 { font-size: 26px; }
  .section-note { max-width: none; margin-top: 12px; font-size: var(--font-secondary); }
  .article-grid { grid-template-columns: 1fr; gap: 16px; }
  .article-card { padding: 22px; }
  .contact-links { grid-template-columns: 1fr; gap: 12px; }
  .tool { grid-template-columns: 54px 1fr 24px; gap: 16px; padding: 24px 0; }
  .tool-name h3 { font-size: 22px; }
  .tool-content { min-width: 0; grid-column: 1 / -1; grid-row: 2; }
  .tool p { font-size: var(--font-body); }
  .tool-arrow { grid-column: 3; grid-row: 1; }
  footer { flex-wrap: wrap; font-size: var(--font-small); }
  footer > span:nth-child(2) { order: 3; width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}