:root{--bg:#FAF8F2;--bg2:#F0EEE0;--ink:#2A2C22;--soft:#5E5C4E;--faint:#98937F;--blue:#6E7657;--blued:#575E44;--wash:#EFEFE0;--gold:#B5893E;--line:#E7E4D6;--maxw:760px;--sans:"Noto Sans TC",system-ui,-apple-system,sans-serif;--serif:"Noto Serif TC",Georgia,serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.95;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}
.gnav{position:sticky;top:0;z-index:20;background:rgba(251,252,254,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.gnav-in{max-width:var(--maxw);margin:0 auto;padding:14px 22px;display:flex;align-items:center;gap:10px;font-weight:900}
.gnav-in .chip{width:38px;height:38px;border-radius:50%;overflow:hidden;flex:none;box-shadow:0 4px 12px -6px rgba(38,40,32,.4)}.gnav-in .chip img{width:100%;height:100%;object-fit:cover}
.gnav-in a{color:var(--ink);font-size:16px}.gnav-in .cn{font-family:"Noto Serif TC",serif;font-weight:900;font-size:18px}.gnav-in .en{font-weight:600;font-size:13px;color:var(--soft);margin-left:5px}.gnav-in .back{margin-left:auto;font-size:14px;color:var(--soft);font-weight:600}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.crumb{font-size:13px;color:var(--faint);padding:22px 0 4px}.crumb a{color:var(--faint)}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--blue);background:var(--wash);padding:5px 13px;border-radius:99px;margin-top:14px}
h1{font-family:var(--serif);font-size:clamp(28px,5vw,40px);line-height:1.3;margin:16px 0 10px;font-weight:900}
.lede{font-size:17px;color:var(--soft);margin:0 0 6px}
.meta{font-size:13px;color:var(--faint);padding:14px 0 0;border-bottom:1px solid var(--line);margin-bottom:8px}
article h2{font-family:var(--serif);font-size:clamp(21px,3.4vw,27px);margin:44px 0 12px;line-height:1.4;font-weight:900}
article h3{font-size:18px;margin:28px 0 8px;font-weight:700}
article p{margin:12px 0;font-size:16.5px}
article b,article strong{color:var(--ink);font-weight:700}
article ul,article ol{margin:12px 0;padding-left:22px}article li{margin:7px 0;font-size:16.5px}
.callout{background:var(--wash);border-left:4px solid var(--blue);border-radius:12px;padding:18px 22px;margin:22px 0;font-size:16px}
.callout.gold{background:#FAF3E6;border-left-color:var(--gold)}
.formula{background:#0E1626;color:#EAF0FB;border-radius:14px;padding:22px 24px;margin:22px 0;font-size:18px;text-align:center;font-family:var(--serif)}
.formula b{color:#D9B26B}
table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15.5px;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--bg2);font-weight:700;color:var(--ink)}tr:last-child td{border-bottom:none}
.cta{background:linear-gradient(150deg,#5A6B47,#262820);color:#fff;border-radius:20px;padding:32px 28px;margin:40px 0;text-align:center;box-shadow:0 24px 48px -26px rgba(38,40,32,.55)}
.cta h3{color:#fff;font-size:22px;margin:0 0 8px;font-family:var(--serif)}
.cta p{color:#D3DEF8;margin:0 0 18px;font-size:15.5px}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:16px;padding:14px 28px;border-radius:99px;background:#fff;color:var(--blue)}
.cta .btn.gold{background:#B5893E;color:#fff}
.faq{margin:36px 0}.faq h2{margin-bottom:16px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 22px;margin-bottom:10px}
.faq summary{list-style:none;cursor:pointer;font-weight:700;font-size:16px;padding:18px 30px 18px 0;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:2px;top:16px;font-size:22px;color:var(--blue);font-weight:300}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:-2px 0 20px;color:var(--soft);font-size:15.5px}
.related{border-top:1px solid var(--line);margin-top:44px;padding:26px 0 10px}
.related h4{font-size:14px;color:var(--faint);letter-spacing:.1em;margin:0 0 12px}
.related a{display:block;padding:10px 0;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line)}
.related a:hover{color:var(--blue);text-decoration:none}
.disc{font-size:12.5px;color:var(--faint);line-height:1.8;margin:26px 0}
footer.g{background:#141B2A;color:#8A94A8;font-size:13px;padding:36px 0 30px;margin-top:20px}
footer.g a{color:#B8C2D6}
@media(max-width:520px){.formula{font-size:16px}}