/* ═══════════════════════════════════════
   侯政宏 — 個人網站
   ═══════════════════════════════════════ */

:root {
  --bg:       #fbfaf7;
  --surface:  #ffffff;
  --text:     #232a26;
  --muted:    #6a746e;
  --line:     #e4e6e2;
  --green:    #2d4a3e;
  --green-lt: #4a7a63;
  --gold:     #b5883c;
  --radius: 14px;
  --wrap: 48rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:       #141715;
    --surface:  #1d211e;
    --text:     #e6eae7;
    --muted:    #99a29c;
    --line:     #2c322e;
    --green:    #7fb99c;
    --green-lt: #9bcdb3;
    --gold:     #d8ab63;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 4.5rem; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans TC", "Microsoft JhengHei", "PingFang TC",
               -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.95;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 1.25rem; }

/* ── Hero ─────────────────────────────── */

.hero {
  background: linear-gradient(165deg, #1f342b, #2d4a3e 52%, #4a7a63);
  color: #fff;
  padding: 5rem 0 4.25rem;
  text-align: center;
}

.hero .kicker {
  margin: 0 0 1rem;
  font-size: .72rem;
  letter-spacing: .42em;
  text-indent: .42em;
  opacity: .65;
}

.hero h1 {
  margin: 0 0 .5rem;
  font-size: clamp(2.4rem, 8vw, 3.6rem);
  letter-spacing: .18em;
  text-indent: .18em;
  line-height: 1.25;
  font-weight: 700;
}

.hero .role {
  margin: 0 0 2rem;
  font-size: .92rem;
  letter-spacing: .12em;
  opacity: .78;
}

.hero .lede {
  margin: 0 auto;
  max-width: 32rem;
  font-size: 1rem;
  line-height: 2.05;
  opacity: .93;
  padding-top: 1.75rem;
  border-top: 1px solid rgba(255,255,255,.2);
}

/* ── 目錄 ─────────────────────────────── */

.toc {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 91%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.toc .wrap {
  display: flex; gap: .3rem; justify-content: center;
  overflow-x: auto; scrollbar-width: none;
  padding-top: .55rem; padding-bottom: .55rem;
}
.toc .wrap::-webkit-scrollbar { display: none; }
.toc a {
  flex: none; padding: .3rem .85rem; border-radius: 99px;
  color: var(--muted); font-size: .87rem; text-decoration: none; white-space: nowrap;
  transition: background .15s, color .15s;
}
.toc a:hover { background: color-mix(in srgb, var(--green) 13%, transparent); color: var(--green); }

/* ── 區塊 ─────────────────────────────── */

main { padding-bottom: 2rem; }
section { padding: 4rem 0 1.5rem; border-bottom: 1px solid var(--line); }
section:last-child { border-bottom: 0; }

.series {
  margin: 0 0 .4rem;
  font-size: .72rem;
  letter-spacing: .3em;
  color: var(--gold);
  font-weight: 700;
}

h2 {
  margin: 0 0 1rem;
  font-size: 1.7rem;
  line-height: 1.45;
  letter-spacing: .04em;
  color: var(--green);
}

.intro {
  margin: 0 0 2rem;
  color: var(--muted);
  font-size: .98rem;
  line-height: 1.95;
}
.intro strong { color: var(--text); }

p { margin: 0 0 1.15rem; }

.lead-out {
  border-left: 4px solid var(--gold);
  padding-left: 1.1rem;
  font-size: 1.02rem;
}

/* ── 卡片 ─────────────────────────────── */

.cards { display: grid; gap: 1rem; grid-template-columns: 1fr 1fr; }
.cards.single { grid-template-columns: 1fr; }

.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 26px rgba(0,0,0,.11);
  border-color: var(--green-lt);
}

.thumb {
  height: 7.75rem;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.thumb svg {
  display: block;
  width: 100%;
  height: 100%;
  transition: transform .4s ease;
}

.card:hover .thumb svg { transform: scale(1.06); }

.body { padding: 1.15rem 1.3rem 1rem; flex: 1; display: flex; flex-direction: column; }

.card h3 {
  margin: 0 0 .5rem;
  font-size: 1.08rem;
  line-height: 1.6;
  color: var(--green);
}

.card p {
  margin: 0 0 .7rem;
  font-size: .93rem;
  line-height: 1.85;
  color: var(--text);
}

.card .meta {
  margin: auto 0 0;
  padding-top: .6rem;
  border-top: 1px dashed var(--line);
  font-size: .8rem;
  color: var(--muted);
}

/* ── 頁尾 ─────────────────────────────── */

footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0;
  text-align: center;
  color: var(--muted);
  font-size: .87rem;
}

footer .sites {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .4rem 1.1rem;
  margin-bottom: 1rem;
}
footer .sites a { color: var(--green); text-decoration: none; }
footer .sites a:hover { text-decoration: underline; }
footer .counter {
  display: inline-flex;
  align-items: center;
  margin-bottom: 1rem;
  padding: .35rem 1rem;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: var(--surface);
  font-size: .85rem;
}
footer .counter strong {
  color: var(--green);
  font-variant-numeric: tabular-nums;
  margin: 0 .15rem;
}

footer .small { margin: 0; font-size: .8rem; opacity: .8; }

a { color: var(--green); }

/* ── 手機 ─────────────────────────────── */

@media (max-width: 34rem) {
  body { font-size: 16px; }
  .hero { padding: 3.75rem 0 3rem; }
  .hero h1 { letter-spacing: .12em; text-indent: .12em; }
  section { padding-top: 3rem; }
  .cards { grid-template-columns: 1fr; }
  .thumb { height: 5.5rem; font-size: 2.2rem; }
}