/* 林口升學情報站 — hand-written CSS.
   No utility framework here: the blog is a few page shapes with long-form text,
   so plain CSS stays smaller than a compiled Tailwind build and keeps the
   reading column easy to tune. */

:root {
  --ink: #17191c;
  --body: #4a4f57;
  --muted: #8b9199;
  --accent: #00417f;
  --line: #e7e9ec;
  --mistbg: #f7f8f9;
  --maxw: 720px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: #fff;
  color: var(--body);
  font-family: "Noto Sans TC", -apple-system, BlinkMacSystemFont, "PingFang TC", sans-serif;
  font-size: 17px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
img { max-width: 100%; height: auto; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ── header ─────────────────────────────────────────────── */
.site-head {
  position: sticky; top: 0; z-index: 30;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.head-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: 60px;
}
.brand { text-decoration: none; display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.brand-name { font-weight: 700; color: var(--ink); font-size: 1.02rem; letter-spacing: .01em; }
.brand-by { font-size: .7rem; color: var(--muted); }
.head-nav { display: flex; gap: 16px; font-size: .85rem; }
.head-nav a { text-decoration: none; color: var(--muted); white-space: nowrap; }
.head-nav a:hover, .head-nav a.on { color: var(--accent); font-weight: 500; }

/* ── shared ─────────────────────────────────────────────── */
.crumb { font-size: .78rem; color: var(--muted); margin: 28px 0 0; display: flex; gap: 8px; flex-wrap: wrap; }
.crumb a { text-decoration: none; }
.crumb a:hover { color: var(--accent); }

h1 { color: var(--ink); font-size: 1.95rem; line-height: 1.35; margin: 14px 0 0; letter-spacing: -.01em; }
@media (min-width: 640px) { h1 { font-size: 2.4rem; } }

.lede { font-size: 1.08rem; color: var(--body); margin: 16px 0 0; line-height: 1.75; }
.meta { font-size: .8rem; color: var(--muted); margin: 14px 0 0; }

/* ── home / cluster ─────────────────────────────────────── */
.home { padding-bottom: 72px; }
.hero { padding: 40px 0 8px; }
.hero p { color: var(--body); margin: 14px 0 0; }
.group { margin-top: 48px; }
.group-head h2 { font-size: 1.25rem; color: var(--ink); margin: 0; }
.group-head h2 a { text-decoration: none; }
.group-head h2 a:hover { color: var(--accent); }
.group-head p { font-size: .9rem; color: var(--muted); margin: 6px 0 0; }
.grid { display: grid; gap: 14px; margin-top: 20px; }
@media (min-width: 640px) { .grid { grid-template-columns: 1fr 1fr; } }
.card {
  display: block; text-decoration: none; padding: 22px;
  border: 1px solid var(--line); border-radius: 14px; background: #fff;
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card-kicker { font-size: .7rem; color: var(--muted); letter-spacing: .06em; }
.card-title { font-size: 1.05rem; color: var(--ink); margin: 8px 0 0; line-height: 1.5; font-weight: 700; }
.card-desc { font-size: .87rem; color: var(--muted); margin: 8px 0 0; line-height: 1.7; }

/* ── article ────────────────────────────────────────────── */
.article { padding-bottom: 80px; }

.quick {
  margin: 30px 0 0; padding: 22px 24px;
  background: var(--mistbg); border-radius: 14px; border: 1px solid var(--line);
}
.quick-label { font-size: .7rem; letter-spacing: .14em; color: var(--accent); font-weight: 700; margin: 0 0 12px; }
.quick ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 9px; }
.quick li { font-size: .95rem; color: var(--ink); line-height: 1.7; padding-left: 20px; position: relative; }
.quick li::before {
  content: ""; position: absolute; left: 2px; top: .62em;
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
}

.toc { margin: 26px 0 0; padding: 18px 22px; border: 1px solid var(--line); border-radius: 14px; }
.toc-label { font-size: .7rem; letter-spacing: .14em; color: var(--muted); font-weight: 700; margin: 0 0 8px; }
.toc ol { margin: 0; padding-left: 20px; }
.toc li { font-size: .9rem; margin: 5px 0; }
.toc a { color: var(--body); text-decoration: none; }
.toc a:hover { color: var(--accent); text-decoration: underline; }

.prose { margin-top: 8px; }
.prose .text-ink { color: var(--ink); }
.prose .text-body { color: var(--body); }
.prose .text-accent { color: var(--accent); }
.prose h2 { color: var(--ink); font-size: 1.4rem; line-height: 1.45; margin: 46px 0 14px; font-weight: 700; scroll-margin-top: 80px; }
@media (min-width: 640px) { .prose h2 { font-size: 1.55rem; } }
.prose h3 { color: var(--ink); font-size: 1.1rem; margin: 32px 0 10px; font-weight: 700; }
.prose p { margin: 18px 0; }
.prose ul, .prose ol { margin: 18px 0; padding-left: 22px; }
.prose li { margin: 7px 0; }
.prose blockquote { margin: 26px 0; border-left: 3px solid var(--accent); background: var(--mistbg); border-radius: 0 10px 10px 0; padding: 16px 20px; }
.prose blockquote p { margin: 0; color: var(--ink); font-weight: 500; }
.prose table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.prose thead { background: var(--mistbg); }
.prose th, .prose td { padding: 11px 14px; text-align: left; vertical-align: top; }
.prose th { color: var(--ink); font-weight: 700; white-space: nowrap; }
.prose tbody tr { border-top: 1px solid var(--line); }
.prose .overflow-x-auto { overflow-x: auto; margin: 26px 0; border: 1px solid var(--line); border-radius: 12px; }
.prose a { color: var(--accent); }

.sources { margin: 44px 0 0; padding: 18px 22px; background: var(--mistbg); border-radius: 12px; }
.sources-label { font-size: .72rem; letter-spacing: .12em; color: var(--muted); font-weight: 700; margin: 0 0 8px; }
.sources ul { margin: 0; padding-left: 18px; }
.sources li { font-size: .85rem; margin: 5px 0; }
.sources a { color: var(--accent); }

.cta { margin: 40px 0 0; padding: 30px 26px; border-radius: 16px; background: linear-gradient(150deg, #002a52 0%, var(--accent) 100%); color: #fff; }
.cta-kicker { font-size: .7rem; letter-spacing: .14em; opacity: .7; margin: 0; }
.cta h2 { font-size: 1.3rem; margin: 6px 0 0; color: #fff; }
.cta p { font-size: .92rem; opacity: .85; margin: 10px 0 0; }
.cta-btns { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.btn-primary, .btn-ghost {
  display: inline-block; text-decoration: none; font-weight: 700; font-size: .92rem;
  padding: 12px 22px; border-radius: 12px; min-height: 44px; line-height: 1.6;
}
.btn-primary { background: #fff; color: var(--accent); }
.btn-ghost { border: 1px solid rgba(255,255,255,.4); color: #fff; }
.btn-primary:hover { opacity: .92; }
.btn-ghost:hover { background: rgba(255,255,255,.12); }

.faq { margin: 48px 0 0; }
.faq h2 { font-size: 1.3rem; color: var(--ink); margin: 0 0 14px; }
.faq details { border: 1px solid var(--line); border-radius: 12px; margin-bottom: 10px; background: #fff; }
.faq summary { cursor: pointer; list-style: none; padding: 15px 20px; font-weight: 700; color: var(--ink); font-size: .95rem; position: relative; padding-right: 46px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 20px; top: 50%; width: 8px; height: 8px;
  border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted);
  transform: translateY(-70%) rotate(45deg); transition: transform .2s;
}
.faq details[open] summary::after { transform: translateY(-30%) rotate(225deg); }
.faq p { margin: 0; padding: 0 20px 16px; font-size: .9rem; color: var(--body); }

.related { margin: 52px 0 0; }
.related h2 { font-size: 1.15rem; color: var(--ink); margin: 0 0 14px; }
.rel-grid { display: grid; gap: 12px; }
@media (min-width: 640px) { .rel-grid { grid-template-columns: 1fr 1fr; } }
.rel-card { display: block; text-decoration: none; padding: 18px; border: 1px solid var(--line); border-radius: 12px; }
.rel-card:hover { border-color: var(--accent); }
.rel-kicker { font-size: .68rem; color: var(--muted); letter-spacing: .06em; }
.rel-title { display: block; color: var(--ink); font-weight: 700; font-size: .95rem; margin-top: 5px; line-height: 1.55; }

/* ── footer ─────────────────────────────────────────────── */
.site-foot { border-top: 1px solid var(--line); background: var(--mistbg); padding: 40px 0 48px; margin-top: 60px; }
.foot-name { font-weight: 700; color: var(--ink); margin: 0; }
.foot-desc { font-size: .84rem; color: var(--muted); margin: 10px 0 0; line-height: 1.8; }
.foot-desc strong { color: var(--body); }
.foot-links { display: flex; gap: 18px; flex-wrap: wrap; margin: 18px 0 0; font-size: .85rem; }
.foot-links a { color: var(--accent); text-decoration: none; }
.foot-links a:hover { text-decoration: underline; }
.foot-copy { font-size: .76rem; color: var(--muted); margin: 18px 0 0; }