@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@400;500;600;700;800;900&family=Noto+Sans+TC:wght@400;500;700;900&display=swap');

/* 與首頁／定價／FAQ 同一套視覺：冷白底、純黑字、方角、髮絲線、無陰影。
   變數名沿用舊的（compare/404 的頁內 style 也吃這幾個），只換值。 */
:root {
  --orange-800: #c2410c;
  --orange-700: #c2410c;
  --orange-600: #c2410c;
  --ink: #0a0a0a;
  --muted: #5a5a5a;
  --line: #e2e2e2;
  --bg: #fcfcfc;
  --card: #fcfcfc;
  --radius: 0px;
  --shadow: none;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Archivo', 'Noto Sans TC', -apple-system, 'Segoe UI', Roboto, sans-serif;
  color: var(--ink); background: var(--bg); line-height: 1.8; -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
::selection { background: #0a0a0a; color: #fcfcfc; }
img { max-width: 100%; }
.wrap { width: min(820px, 92vw); margin: 0 auto; }
.wrap-wide { width: min(1240px, 92vw); margin: 0 auto; }

/* ── 導覽 / 頁尾 ───────────────────────────────────────────── */
header.site { position: sticky; top: 0; z-index: 50; background: var(--bg); border-bottom: 1px solid var(--ink); }
header.site .nav { display: flex; align-items: center; gap: clamp(14px, 2.2vw, 32px); height: 72px; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 900; font-size: 20px; letter-spacing: .04em; }
.brand img { width: 24px; height: 24px; }
.nav-links { display: flex; gap: clamp(14px, 2vw, 28px); margin-left: clamp(8px, 2vw, 28px); }
.nav-links a { color: var(--ink); font-weight: 500; font-size: 14px; white-space: nowrap; }
.nav-links a:hover { opacity: .55; }
.nav-cta { margin-left: auto; }
.btn { display: inline-flex; align-items: center; border-radius: 0; font-weight: 800; font-size: 14px; padding: 11px 22px; background: var(--ink); color: #fcfcfc; border: 1px solid var(--ink); transition: all .25s ease; }
.btn:hover { background: transparent; color: var(--ink); opacity: 1; }

footer.site { padding: 36px 0; border-top: 1px solid #262626; margin-top: 88px; background: #0a0a0a; color: #7a7a7a; font-size: 13px; }
footer.site .wrap-wide { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
footer.site .brand { color: #fcfcfc; }
footer.site a:hover { opacity: .6; }
footer.site .copy { margin-left: auto; color: #5a5a5a; font-size: 13px; }

/* ── 部落格索引 ────────────────────────────────────────────── */
.blog-hero { padding: 104px 0 56px; text-align: left; }
.blog-hero .kicker { color: #8a8a8a; font-weight: 500; letter-spacing: .3em; text-transform: uppercase; font-size: 12px; }
.blog-hero h1 { font-size: clamp(44px, 7.5vw, 108px); font-weight: 900; letter-spacing: -.02em; line-height: 1.04; margin: 20px 0 28px; }
.blog-hero p { color: #3c3c3c; font-size: 16px; line-height: 1.9; max-width: 560px; border-top: 1px solid var(--ink); padding-top: 24px; }

.post-list { display: block; padding: 0 0 24px; border-top: 1px solid var(--ink); }
.post-card { display: block; background: transparent; border: none; border-bottom: 1px solid var(--line); border-radius: 0; padding: 40px 0; box-shadow: none; transition: opacity .25s ease; }
.post-card:hover { transform: none; box-shadow: none; opacity: .55; }
.post-card .tag { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .2em; color: var(--orange-800); background: transparent; padding: 0; border-radius: 0; margin-bottom: 12px; }
.post-card h2 { font-size: clamp(24px, 3vw, 38px); font-weight: 900; letter-spacing: -.01em; line-height: 1.3; margin-bottom: 14px; max-width: 20ch; }
.post-card p { color: #3c3c3c; font-size: 16px; line-height: 1.9; max-width: 68ch; }
.post-card .meta { margin-top: 16px; color: #8a8a8a; font-size: 13px; letter-spacing: .04em; }

/* ── 文章 ──────────────────────────────────────────────────── */
.article { padding: 88px 0 24px; }
.article .back { color: #8a8a8a; font-weight: 500; font-size: 12.5px; }
.article .back:hover { color: var(--ink); opacity: 1; }
.article .tag { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .2em; color: var(--orange-800); background: transparent; padding: 0; border-radius: 0; margin: 28px 0 16px; }
.article h1 { font-size: clamp(36px, 5.6vw, 76px); font-weight: 900; letter-spacing: -.02em; line-height: 1.1; }
.article .meta { color: #8a8a8a; font-size: 13px; letter-spacing: .04em; margin: 24px 0 0; border-top: 1px solid var(--ink); padding-top: 20px; }

.article-body { font-size: 17px; color: #3c3c3c; line-height: 2; }
.article-body h2 { font-size: clamp(26px, 2.8vw, 38px); font-weight: 900; letter-spacing: -.01em; line-height: 1.25; color: var(--ink); margin: 64px 0 18px; }
.article-body h3 { font-size: 21px; font-weight: 900; color: var(--ink); margin: 36px 0 10px; }
.article-body p { margin: 0 0 22px; }
.article-body ul { margin: 0 0 22px; padding-left: 20px; }
.article-body li { margin-bottom: 10px; }
.article-body strong { font-weight: 700; color: var(--ink); }
.article-body a { border-bottom: 1px solid var(--orange-800); color: var(--orange-800); }
.article-body blockquote { border-left: 2px solid var(--ink); background: transparent; padding: 4px 0 4px 24px; border-radius: 0; color: var(--ink); font-weight: 500; margin: 0 0 22px; }

.article-cta { background: #0a0a0a; color: #fcfcfc; border-radius: 0; padding: 88px 40px; text-align: center; margin: 88px 0 0; }
.article-cta h3 { font-size: clamp(28px, 4vw, 52px); font-weight: 900; letter-spacing: -.02em; line-height: 1.15; margin-bottom: 20px; }
.article-cta p { color: #a8a8a8; margin: 0 auto 36px; max-width: 440px; font-size: 16px; line-height: 1.9; }
.article-cta .btn { background: var(--orange-800); color: #fff; border-color: var(--orange-800); font-size: 16px; padding: 16px 40px; }
.article-cta .btn:hover { background: transparent; color: #fcfcfc; border-color: #fcfcfc; }

/* ── FAQ 舊版樣式（/faq/ 已改成獨立頁；其他頁若還用 details 版仍可套用）── */
.faq-hero { padding: 104px 0 8px; }
.faq-hero .kicker { color: #8a8a8a; font-weight: 500; letter-spacing: .3em; text-transform: uppercase; font-size: 12px; }
.faq-hero h1 { font-size: clamp(44px, 7.5vw, 108px); font-weight: 900; letter-spacing: -.02em; line-height: 1.04; margin: 20px 0 28px; }
.faq-hero p { color: #3c3c3c; font-size: 16px; line-height: 1.9; max-width: 560px; }
.faq-list { max-width: none; margin: 0; padding: 32px 0 8px; display: block; border-top: 1px solid var(--ink); }
.faq-item { background: transparent; border: none; border-bottom: 1px solid var(--line); border-radius: 0; overflow: hidden; box-shadow: none; }
.faq-item summary { list-style: none; cursor: pointer; padding: 26px 0; font-weight: 900; font-size: clamp(18px, 2vw, 24px); line-height: 1.5; display: flex; align-items: center; gap: 12px; color: var(--ink); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; margin-left: auto; font-size: 22px; font-weight: 400; color: #8a8a8a; transition: transform .3s ease; }
.faq-item[open] summary::after { transform: rotate(45deg); color: var(--ink); }
.faq-item .ans { padding: 0 0 28px; color: #3c3c3c; font-size: 16px; line-height: 2; max-width: 760px; }
.faq-bottom-cta { max-width: none; margin: 88px 0 0; background: #0a0a0a; color: #fcfcfc; border-radius: 0; padding: 88px 40px; text-align: center; }
.faq-bottom-cta h3 { font-size: clamp(28px, 4vw, 52px); font-weight: 900; letter-spacing: -.02em; margin-bottom: 20px; }
.faq-bottom-cta p { color: #a8a8a8; margin: 0 auto 36px; max-width: 440px; }
.faq-bottom-cta .btn { background: var(--orange-800); color: #fff; border-color: var(--orange-800); font-size: 16px; padding: 16px 40px; }
.faq-bottom-cta .btn:hover { background: transparent; color: #fcfcfc; border-color: #fcfcfc; }

@media (max-width: 860px) {
  .nav-links { display: none; }
  .article-cta, .faq-bottom-cta { padding: 64px 24px; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }