:root {
  color-scheme: light;
  --paper: #f6f2e9;
  --ink: #303d31;
  --muted: #626657;
  --line: #c8cfbd;
  --accent: #3f5b3b;
  --accent-hover: #2e462a;
  --sage: #e7ebdf;
  --apricot: #eee3d6;
  --hover: #e0e6d6;
  font-family: "Segoe UI", "PingFang TC", "Microsoft JhengHei", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  background: var(--paper);
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
}

* { box-sizing: border-box; }
body { margin: 0; }
h1, h2, h3, p { margin: 0; }
a { color: var(--accent); text-underline-offset: 5px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
::selection { background: #cad9ba; color: #1b2e18; }
.page { max-width: 1200px; margin-inline: auto; padding-inline: 48px; }
.icon-definitions { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { width: 20px; height: 20px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: absolute; top: 10px; left: 10px; z-index: 10; padding: 10px 18px; border-radius: 5px; background: var(--accent); color: white; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.site-header { min-height: 112px; display: flex; align-items: center; justify-content: space-between; gap: 28px; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 19px; text-decoration: none; color: var(--ink); }
.wordmark { font: 500 38px/1 Georgia, serif; font-variant-numeric: lining-nums; letter-spacing: -1.5px; }
.brand-note { padding-left: 19px; border-left: 1px solid var(--line); font-size: 12px; line-height: 1.65; color: var(--muted); }
.site-nav { display: flex; align-items: center; flex-wrap: wrap; gap: 28px; }
.site-nav a { min-height: 44px; display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; text-decoration-thickness: 1px; }
.site-nav a:hover { text-decoration-thickness: 2px; }
.main-layout { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); gap: 48px; padding-block: 44px; }
.intro { min-width: 0; padding-top: 12px; }
.eyebrow { color: var(--muted); font-size: 11px; letter-spacing: 2px; }
h1 { margin-block: 25px 29px; font: 500 clamp(31px, 3.3vw, 41px)/1.6 "Noto Serif TC", "Songti TC", "PMingLiU", serif; letter-spacing: -.7px; }
h1 em { color: var(--accent); font-style: normal; }
.intro-lead { margin-bottom: 25px; font-size: 18px; line-height: 1.95; }
.intro-copy { color: var(--muted); font-size: 15px; line-height: 2.05; }
.signature { margin-top: 36px; margin-bottom: 6px; font: italic 34px/1.4 Georgia, serif; font-variant-numeric: lining-nums; }
.author-note { color: var(--muted); font-size: 13px; }
.intro-contact { margin-top: 25px; }
.works { display: flex; min-width: 0; flex-direction: column; gap: 20px; scroll-margin-top: 24px; }
.works-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 16px; }
.works-heading h2 { font-size: 15px; font-weight: 600; }
.works-heading p { color: var(--muted); font-size: 12px; }
.project { padding: 28px; border-radius: 7px; background: var(--sage); }
.project-reply { background: var(--apricot); }
.project-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.app-identity { display: flex; align-items: center; gap: 13px; }
.app-icon { display: block; width: 47px; height: 47px; flex-shrink: 0; border-radius: 11px; overflow: hidden; }
.app-identity h3 { font-size: 26px; line-height: 1.35; letter-spacing: .5px; font-weight: 600; }
.app-identity p { color: var(--muted); font-size: 13px; }
.status { color: var(--accent); font-size: 12px; font-weight: 600; white-space: nowrap; }
.project-promise { margin-top: 20px; margin-bottom: 18px; font-size: 19px; line-height: 1.6; font-weight: 500; }
.features { display: flex; flex-direction: column; gap: 14px; padding: 0; margin: 0; list-style: none; }
.features li { display: flex; align-items: flex-start; gap: 12px; }
.features li > .icon { margin-top: 3px; color: var(--accent); }
.features strong { display: block; font-size: 15px; font-weight: 600; line-height: 1.6; }
.features p { color: var(--muted); font-size: 13px; line-height: 1.65; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 25px; padding-top: 21px; border-top: 1px solid var(--line); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 11px; min-height: 48px; padding: 11px 17px; border: 1px solid var(--accent); border-radius: 6px; font-size: 15px; font-weight: 600; line-height: 1.4; text-decoration: none; transition: background-color 150ms ease; }
.button-primary { justify-content: space-between; min-width: 178px; background: var(--accent); color: white; }
.button-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.button-outline { background: transparent; color: var(--accent); }
.button-outline:hover { background: var(--hover); }
.button-primary:focus-visible { outline-offset: 4px; }
.action-note { color: var(--muted); font-size: 12px; }
.contact { display: flex; align-items: center; justify-content: space-between; gap: 28px; padding-block: 26px; border-top: 1px solid var(--line); scroll-margin-top: 24px; }
.contact-introduction { display: flex; align-items: center; gap: 21px; min-width: 0; }
.portrait { display: block; flex-shrink: 0; width: 72px; height: 96px; object-fit: contain; border-radius: 6px; }
.contact h2 { margin-bottom: 7px; font-size: 20px; font-weight: 500; line-height: 1.55; }
.contact p { color: var(--muted); font-size: 14px; }
.contact-button { flex-shrink: 0; }
.site-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 20px; padding-block: 19px 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }

@media (max-width: 1000px) {
  .page { padding-inline: 32px; }
  .main-layout { grid-template-columns: minmax(0, .73fr) minmax(0, 1.27fr); gap: 32px; }
  h1 { font-size: 32px; }
  .site-nav { gap: 20px; }
  .project { padding: 25px; }
  .contact h2 { font-size: 18px; }
  .contact-introduction { gap: 16px; }
}

@media (max-width: 800px) {
  .page { padding-inline: 24px; }
  .site-header { min-height: auto; align-items: flex-start; flex-direction: column; gap: 14px; padding-top: 28px; padding-bottom: 12px; }
  .wordmark { font-size: 34px; }
  .brand-note br { display: none; }
  .site-nav { width: 100%; gap: 25px; }
  .main-layout { grid-template-columns: minmax(0, 1fr); gap: 37px; padding-block: 29px 32px; }
  .intro { padding-top: 0; }
  h1 { margin-top: 20px; margin-bottom: 22px; font-size: 37px; line-height: 1.5; }
  .intro-lead { font-size: 17px; margin-bottom: 18px; }
  .intro-lead br { display: none; }
  .intro-copy { font-size: 14px; }
  .signature { margin-top: 23px; font-size: 31px; }
  .intro-contact { margin-top: 21px; }
  .contact { align-items: flex-start; flex-direction: column; gap: 20px; padding-block: 25px; }
  .contact-introduction { gap: 17px; }
  .contact-button { margin-left: 89px; }
}

@media (max-width: 390px) {
  .page { padding-inline: 18px; }
  .site-nav { gap: 20px; }
  .site-nav a { font-size: 13px; }
  h1 { font-size: 31px; }
  .project { padding: 22px 19px; }
  .app-identity { gap: 10px; }
  .app-identity h3 { font-size: 23px; }
  .app-icon { width: 41px; height: 41px; }
  .status { font-size: 11px; }
  .project-promise { font-size: 18px; }
  .actions { align-items: stretch; flex-direction: column; }
  .button-primary { width: 100%; }
  .action-note { padding-inline: 1px; }
  .works-heading p { font-size: 11px; }
  .contact h2 { font-size: 17px; }
  .contact p { font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}