:root {
  --orange-800: #c2410c;
  --orange-700: #e2540c;
  --orange-600: #f4661e;
  --ink: #1c1714;
  --muted: #6b5d56;
  --line: #efe2da;
  --bg: #fbf6f2;
  --card: #fff;
  --radius: 16px;
  --shadow: 0 18px 40px rgba(120, 60, 20, 0.08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, "Noto Sans TC", "Segoe UI", Roboto, "Microsoft JhengHei", sans-serif;
  color: var(--ink); background: var(--bg); line-height: 1.7; -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.wrap { width: min(820px, 92vw); margin: 0 auto; }
.wrap-wide { width: min(1140px, 92vw); margin: 0 auto; }

/* Header / footer (shared with landing look) */
header.site { position: sticky; top: 0; z-index: 50; background: rgba(251, 246, 242, 0.86); backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--line); }
header.site .nav { display: flex; align-items: center; gap: 24px; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 900; font-size: 19px; }
.brand img { width: 28px; height: 28px; }
.nav-links { display: flex; gap: 22px; margin-left: 6px; }
.nav-links a { color: var(--muted); font-weight: 600; font-size: 15px; }
.nav-links a:hover { color: var(--orange-700); }
.nav-cta { margin-left: auto; }
.btn { display: inline-flex; align-items: center; border-radius: 999px; font-weight: 800; font-size: 15px; padding: 11px 20px; background: var(--orange-700); color: #fff; }
.btn:hover { background: var(--orange-600); }

footer.site { padding: 40px 0; border-top: 1px solid var(--line); margin-top: 56px; }
footer.site .wrap-wide { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
footer.site .copy { margin-left: auto; color: #a08e84; font-size: 13px; }

/* Blog index */
.blog-hero { padding: 64px 0 32px; text-align: center; }
.blog-hero .kicker { color: var(--orange-700); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; font-size: 14px; }
.blog-hero h1 { font-size: clamp(30px, 4vw, 44px); font-weight: 900; letter-spacing: -0.02em; margin: 12px 0 10px; }
.blog-hero p { color: var(--muted); font-size: 17px; }
.post-list { display: grid; gap: 20px; padding: 24px 0 64px; }
.post-card { display: block; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); transition: transform .12s ease, box-shadow .12s ease; }
.post-card:hover { transform: translateY(-2px); box-shadow: 0 24px 50px rgba(120, 60, 20, 0.12); }
.post-card .tag { display: inline-block; font-size: 12px; font-weight: 800; color: var(--orange-700); background: #fde9dc; padding: 4px 12px; border-radius: 999px; margin-bottom: 14px; }
.post-card h2 { font-size: 22px; font-weight: 900; letter-spacing: -0.01em; margin-bottom: 8px; }
.post-card p { color: var(--muted); font-size: 15px; }
.post-card .meta { margin-top: 14px; color: #a08e84; font-size: 13px; }

/* Article */
.article { padding: 48px 0 24px; }
.article .back { color: var(--orange-700); font-weight: 700; font-size: 14px; }
.article .tag { display: inline-block; font-size: 12px; font-weight: 800; color: var(--orange-700); background: #fde9dc; padding: 4px 12px; border-radius: 999px; margin: 18px 0 14px; }
.article h1 { font-size: clamp(28px, 4vw, 40px); font-weight: 900; letter-spacing: -0.02em; line-height: 1.2; }
.article .meta { color: #a08e84; font-size: 14px; margin: 14px 0 8px; }
.article-body { font-size: 17px; color: #36302c; }
.article-body h2 { font-size: 25px; font-weight: 900; letter-spacing: -0.01em; margin: 40px 0 14px; }
.article-body h3 { font-size: 19px; font-weight: 800; margin: 26px 0 10px; }
.article-body p { margin: 0 0 18px; }
.article-body ul { margin: 0 0 18px; padding-left: 22px; }
.article-body li { margin-bottom: 8px; }
.article-body strong { font-weight: 800; }
.article-body blockquote { border-left: 4px solid var(--orange-600); background: #fff; padding: 14px 20px; border-radius: 8px; color: var(--muted); margin: 0 0 18px; }
.article-cta { background: linear-gradient(135deg, var(--orange-600), var(--orange-800)); color: #fff; border-radius: 20px; padding: 36px; text-align: center; margin: 44px 0 8px; }
.article-cta h3 { font-size: 24px; font-weight: 900; margin-bottom: 10px; }
.article-cta p { color: #ffe1d0; margin-bottom: 20px; }
.article-cta .btn { background: #fff; color: var(--orange-800); }

/* FAQ page */
.faq-hero { padding: 64px 0 8px; text-align: center; }
.faq-hero .kicker { color: var(--orange-700); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; font-size: 14px; }
.faq-hero h1 { font-size: clamp(30px, 4vw, 44px); font-weight: 900; letter-spacing: -0.02em; margin: 12px 0 10px; }
.faq-hero p { color: var(--muted); font-size: 17px; }
.faq-list { max-width: 760px; margin: 0 auto; padding: 32px 0 8px; display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.faq-item summary { list-style: none; cursor: pointer; padding: 20px 24px; font-weight: 800; font-size: 16.5px; display: flex; align-items: center; gap: 12px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; margin-left: auto; font-size: 24px; font-weight: 700; color: var(--orange-700); transition: transform .2s ease; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .ans { padding: 0 24px 22px; color: var(--muted); font-size: 15px; line-height: 1.7; }
.faq-bottom-cta { max-width: 760px; margin: 32px auto 0; background: linear-gradient(135deg, var(--orange-600), var(--orange-800)); color: #fff; border-radius: 20px; padding: 36px; text-align: center; }
.faq-bottom-cta h3 { font-size: 23px; font-weight: 900; margin-bottom: 10px; }
.faq-bottom-cta p { color: #ffe1d0; margin-bottom: 20px; }
.faq-bottom-cta .btn { background: #fff; color: var(--orange-800); }

@media (max-width: 720px) { .nav-links { display: none; } }