:root { color-scheme: light; --ink:#171717; --muted:#5f6368; --line:#e6e8eb; --accent:#2157a6; --bg:#ffffff; --soft:#f6f7f9; }
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif; color: var(--ink); background: var(--bg); line-height: 1.72; letter-spacing: 0; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
img, video, iframe { max-width: 100%; height: auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 18px clamp(18px, 4vw, 56px); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.94); position: sticky; top: 0; z-index: 10; }
.brand { color: var(--ink); font-weight: 800; text-decoration: none; }
nav { display: flex; gap: 18px; flex-wrap: wrap; }
nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
main { width: min(1080px, calc(100% - 36px)); margin: 0 auto; }
.hero { padding: 48px 0 24px; border-bottom: 1px solid var(--line); }
.hero h1 { font-size: clamp(32px, 5vw, 56px); line-height: 1.16; margin: 0 0 14px; }
.hero p { max-width: 760px; color: var(--muted); margin: 0; font-size: 18px; }
.post-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; padding: 28px 0 56px; }
.post-card { border: 1px solid var(--line); border-radius: 8px; padding: 20px; background: #fff; }
.post-card h2 { font-size: 21px; line-height: 1.35; margin: 4px 0 10px; }
.post-card h2 a { color: var(--ink); }
.post-card p { margin: 0; color: var(--muted); }
.eyebrow { color: var(--muted); font-size: 14px; margin: 0 0 8px; }
.article { max-width: 820px; margin: 0 auto; padding: 48px 0 64px; }
.article h1 { font-size: clamp(30px, 4.4vw, 48px); line-height: 1.2; margin: 0 0 14px; }
.meta { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; color: var(--muted); }
.meta a { background: var(--soft); border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; color: var(--muted); text-decoration: none; font-size: 14px; }
.content { font-size: 18px; }
.content h2 { font-size: 28px; line-height: 1.3; margin-top: 42px; }
.content h3 { font-size: 23px; line-height: 1.35; margin-top: 32px; }
.content figure { margin: 28px 0; }
.content blockquote { border-left: 4px solid var(--accent); margin-left: 0; padding-left: 18px; color: #333; }
.category-list { list-style: none; padding: 28px 0 60px; margin: 0; columns: 2; column-gap: 36px; }
.category-list li { break-inside: avoid; display: flex; justify-content: space-between; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.site-footer { border-top: 1px solid var(--line); color: var(--muted); padding: 24px clamp(18px, 4vw, 56px); }
@media (max-width: 680px) { .site-header { align-items: flex-start; flex-direction: column; } .category-list { columns: 1; } .content { font-size: 17px; } }