/* AF Studio —— 主網域首頁的樣式（配色沿用價值計算機） */
:root {
  --bg: #f4f6f9; --surface: #ffffff; --surface-2: #f8fafc; --border: #e2e8f0;
  --text: #1a2233; --text-mid: #566179; --text-dim: #65708a;
  --accent: #2563eb; --accent-sf: #eff4ff; --on-accent: #ffffff; --ok: #0b7d46; --err: #d93025;
  --shadow: 0 1px 2px rgba(16,24,40,.05), 0 4px 14px rgba(16,24,40,.06);
  --radius: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1420; --surface: #161d2b; --surface-2: #1c2534; --border: #2a3446;
    --text: #e6ebf4; --text-mid: #a3aec4; --text-dim: #8b97ad;
    --accent: #6ba0ff; --accent-sf: #17233c; --on-accent: #0e1420; --ok: #4ade80; --err: #f87171;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 4px 14px rgba(0,0,0,.25);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg); color: var(--text); line-height: 1.7;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }

/* 頂列 */
.topbar { border-bottom: 1px solid var(--border); background: var(--surface); }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 750; font-size: 18px; }
.brand-mark { width: 30px; height: 30px; display: grid; place-items: center; color: var(--accent); }
.nav { display: flex; gap: 18px; font-size: 14px; }
.nav a { color: var(--text-mid); text-decoration: none; }
.nav a:hover { color: var(--accent); }

/* 主視覺 */
.hero { padding: 56px 0 28px; }
.hero h1 { font-size: 34px; letter-spacing: -.02em; line-height: 1.25; }
.hero p { margin-top: 12px; font-size: 16px; color: var(--text-mid); max-width: 36em; }

/* 作品 */
.section-title { font-size: 15px; font-weight: 700; color: var(--text-mid); margin: 18px 2px 12px; letter-spacing: .02em; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 24px;
}
.work { display: grid; gap: 14px; }
.work-head { display: flex; align-items: center; gap: 12px; }
.work-icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--accent-sf); color: var(--accent); flex-shrink: 0; }
.work h3 { font-size: 20px; }
.work .tagline { font-size: 13px; color: var(--text-dim); }
.work p { color: var(--text-mid); font-size: 15px; }
.work ul { padding-left: 20px; color: var(--text-mid); font-size: 14.5px; }
.work li { margin: 3px 0; }
.work .note { font-size: 12.5px; color: var(--text-dim); }
.btn-primary {
  justify-self: start; display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 18px; border-radius: 10px; background: var(--accent); color: var(--on-accent);
  font-weight: 650; font-size: 15px; text-decoration: none;
}
.btn-primary:hover { filter: brightness(1.08); }
.btn-primary:focus-visible, .nav a:focus-visible, .link-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.more { margin-top: 14px; font-size: 13.5px; color: var(--text-dim); text-align: center; }

/* 文章頁（隱私權政策） */
.article { padding: 32px 0 8px; }
.article h1 { font-size: 26px; }
.article .updated { color: var(--text-dim); font-size: 13px; margin: 4px 0 18px; }
.article h2 { font-size: 16px; margin: 22px 0 6px; }
.article p, .article li { color: var(--text-mid); font-size: 15px; }
.article ul { padding-left: 20px; margin: 6px 0; }

/* 頁尾 */
.foot { margin: 40px auto 36px; padding-top: 18px; border-top: 1px solid var(--border); font-size: 13px; color: var(--text-dim); }
.foot-links { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 6px; }
.foot-links a { color: var(--text-dim); }
.link-btn { font: inherit; color: var(--text-dim); background: none; border: 0; padding: 0; text-decoration: underline; cursor: pointer; }
.link-btn:hover, .foot-links a:hover { color: var(--accent); }

/* 聯絡我們（浮動視窗，與價值計算機相同） */
.fb-dialog {
  margin: auto;   /* 上方 * { margin: 0 } 會蓋掉瀏覽器讓 dialog 置中的 margin: auto */
  width: min(520px, calc(100vw - 32px)); max-height: calc(100vh - 32px); padding: 0;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--text);
  box-shadow: 0 24px 60px rgba(15, 23, 42, .28);
}
.fb-dialog::backdrop { background: rgba(15, 23, 42, .45); }
.fb-dialog form { padding: 20px; }
.fb-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.fb-head h2 { font-size: 17px; }
.fb-close { font: inherit; font-size: 15px; line-height: 1; padding: 6px 8px; border-radius: 8px; border: 0; background: none; color: var(--text-dim); cursor: pointer; }
.fb-close:hover { background: var(--surface-2); color: var(--text); }
.fb-sub { margin: 4px 0 12px; font-size: 13px; color: var(--text-dim); }
.fb-dialog textarea, .fb-dialog input[type="email"] {
  font: inherit; font-size: 14px; width: 100%; padding: 10px 12px;
  border: 1px solid var(--border); border-radius: 10px; background: var(--surface-2); color: var(--text);
}
.fb-dialog textarea { display: block; resize: vertical; min-height: 120px; }
.fb-dialog textarea:focus, .fb-dialog input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.fb-row { display: flex; gap: 8px; margin-top: 8px; }
.fb-row input { flex: 1; min-width: 0; }
.btn-send { font: inherit; font-size: 14px; font-weight: 650; padding: 9px 20px; border-radius: 10px; border: 0; background: var(--accent); color: var(--on-accent); cursor: pointer; }
.btn-send:disabled { opacity: .6; cursor: progress; }
.fb-hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.fb-status { min-height: 1.4em; margin-top: 8px; font-size: 13px; color: var(--text-mid); }
.fb-status.ok { color: var(--ok); font-weight: 600; }
.fb-status.err { color: var(--err); }
.fb-note { font-size: 12px; color: var(--text-dim); }

@media (max-width: 560px) {
  .hero { padding: 36px 0 18px; }
  .hero h1 { font-size: 27px; }
  .card { padding: 18px; }
  .fb-row { flex-direction: column; }
  .btn-primary { justify-self: stretch; justify-content: center; }
}