:root{
  --amber:#E8744B; --amber-ink:#B75832; --amber-soft:#FDEEE7;
  --teal:#3A5A7F; --cream:#FBF6EE; --cream-deep:#F4EADb; --warm:#FFF8F1;
  --ink1:#2A2620; --ink2:#5C574E; --ink3:#9A9488;
  --line:#ECE6DC; --hair:#E7E0D4; --white:#fff;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  color:var(--ink1);background:var(--white);line-height:1.85;-webkit-font-smoothing:antialiased;letter-spacing:.1px;
}
a{color:var(--amber-ink);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1120px;margin:0 auto;padding:0 28px}

/* NAV */
header{position:sticky;top:0;z-index:50;background:rgba(255,251,245,.85);
  backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px;letter-spacing:.5px;color:var(--ink1)}
.brand:hover{text-decoration:none}
.brand img{width:30px;height:30px;object-fit:contain}
.nav a.back{font-size:14.5px;color:var(--ink2);font-weight:500}
.nav a.back:hover{color:var(--amber-ink);text-decoration:none}

/* ARTICLE */
.hero-bar{background:linear-gradient(180deg,var(--cream),#fff);border-bottom:1px solid var(--line);padding:54px 0 40px}
.hero-bar h1{font-size:clamp(28px,4vw,40px);font-weight:850;letter-spacing:-.8px}
.hero-bar .meta{margin-top:12px;color:var(--ink3);font-size:14px}
.article{max-width:780px;margin:0 auto;padding:56px 28px 88px}
.article h2{font-size:22px;font-weight:800;margin:42px 0 14px;letter-spacing:-.3px;padding-top:8px}
.article h2:first-child{margin-top:0}
.article h3{font-size:17px;font-weight:700;margin:26px 0 8px;color:var(--ink1)}
.article p{margin:12px 0;color:var(--ink2);font-size:15.5px}
.article ul,.article ol{margin:12px 0 12px 24px;color:var(--ink2);font-size:15.5px}
.article li{margin:7px 0}
.article strong{color:var(--ink1);font-weight:700}
.article hr{border:none;border-top:1px solid var(--line);margin:40px 0}
.article .note{color:var(--ink3);font-size:13.5px;font-style:italic}
.article table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px}
.article th,.article td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top}
.article th{background:var(--warm);font-weight:700;color:var(--ink1)}
.article td{color:var(--ink2)}
.callout{background:var(--amber-soft);border:1px solid #f6dccd;border-radius:14px;padding:20px 24px;margin:22px 0}
.callout p{color:var(--ink1);margin:6px 0}

/* FOOTER */
footer{background:var(--cream-deep);color:var(--ink2);padding:48px 0 40px;font-size:14px;border-top:1px solid var(--line);margin-top:40px}
.foot-links{display:flex;gap:26px;flex-wrap:wrap;margin-bottom:18px}
.foot-links a{color:var(--ink2)}
.foot-links a:hover{color:var(--amber-ink);text-decoration:none}
.foot-legal{font-size:12.5px;color:var(--ink3);line-height:1.9}
@media(max-width:560px){.article table{display:block;overflow-x:auto}}