:root{
  --ink:#1a1a1a; --sub:#5b5b5b; --line:#e6e2dd; --bg:#fbfaf8;
  --red:#c0392b; --red-d:#96291d; --gold:#b8892b; --ok:#1f7a4d; --warn:#b3541e;
  --card:#fff;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
a{color:var(--red);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
header.top{background:#141414;color:#f5f2ee;padding:14px 0;position:sticky;top:0;z-index:20}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.brand{font-weight:700;letter-spacing:.3px}
.brand small{font-weight:400;opacity:.62;margin-left:8px;font-size:13px}
nav.top a{color:#e8e2da;font-size:14px;margin-left:18px;opacity:.86}
nav.top a:hover{opacity:1;text-decoration:none;color:#fff}

.hero{padding:56px 0 36px;border-bottom:1px solid var(--line);background:
  radial-gradient(900px 320px at 12% -10%,#fdeeea 0%,transparent 62%),var(--bg)}
.hero h1{margin:0 0 14px;font-size:34px;line-height:1.32;letter-spacing:-.4px}
.hero h1 em{font-style:normal;color:var(--red)}
.hero p.lead{margin:0 0 22px;font-size:17px;color:var(--sub);max-width:760px}
.hero .kicker{display:inline-block;font-size:13px;color:var(--red-d);background:#fbe9e6;
  border:1px solid #f2d2cc;border-radius:999px;padding:3px 12px;margin-bottom:16px}
.cta{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.btn{display:inline-block;padding:12px 22px;border-radius:8px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer}
.btn.primary{background:var(--red);color:#fff}
.btn.primary:hover{background:var(--red-d);text-decoration:none}
.btn.ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--red);text-decoration:none}
.hero .fine{font-size:13px;color:#8a8078;margin-top:14px}

section{padding:44px 0;border-bottom:1px solid var(--line)}
section h2{font-size:24px;margin:0 0 8px;letter-spacing:-.2px}
section .intro{color:var(--sub);margin:0 0 24px;max-width:800px}

.grid{display:grid;gap:16px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
@media(max-width:860px){.g3,.g2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}
.card h3{margin:0 0 8px;font-size:17px}
.card p{margin:0 0 8px;color:var(--sub);font-size:15px}
.card .code{font:12px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace;color:#9a9188}

details.mod{background:#fff;border:1px solid var(--line);border-radius:10px;padding:0;margin-bottom:10px}
details.mod summary{cursor:pointer;padding:14px 18px;font-weight:600;list-style:none;
  display:flex;align-items:center;gap:10px}
details.mod summary::-webkit-details-marker{display:none}
details.mod summary .n{width:24px;height:24px;border-radius:6px;background:#fbe9e6;color:var(--red-d);
  font:600 13px/24px ui-monospace,monospace;text-align:center;flex:0 0 24px}
details.mod[open] summary{border-bottom:1px solid var(--line)}
details.mod .body{padding:14px 18px 18px;color:var(--sub);font-size:15px}
details.mod .body ul{margin:8px 0 0;padding-left:20px}
details.mod .body li{margin:4px 0}
details.mod .body .tag{display:inline-block;font-size:12px;background:#f4f1ec;border-radius:5px;
  padding:1px 7px;margin-right:6px;color:#6b635a;font-family:ui-monospace,monospace}

/* 表单 */
.form{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.field input,.field select{width:100%;padding:10px 12px;border:1px solid var(--line);
  border-radius:8px;font-size:15px;background:#fff;color:var(--ink);font-family:inherit}
.field input:focus,.field select:focus{outline:none;border-color:var(--red);box-shadow:0 0 0 3px #fbe9e6}
.field .hint{font-size:12.5px;color:#8a8078;margin-top:5px}
.quote{background:#fbfaf8;border:1px dashed var(--line);border-radius:10px;padding:16px;margin-top:6px}
.quote .big{font-size:30px;font-weight:700;color:var(--red);letter-spacing:-.5px}
.quote .big small{font-size:14px;color:var(--sub);font-weight:400;margin-left:4px}
.quote .row{font-size:14px;color:var(--sub);margin-top:6px}
.quote .all{font-size:13px;color:#6b635a;margin-top:10px;padding-top:10px;border-top:1px dotted var(--line)}
.blocked{background:#fff4f0;border:1px solid #f3c9bd;border-radius:10px;padding:18px}
.blocked h4{margin:0 0 8px;color:#8f2415;font-size:16px}
.blocked p{margin:0 0 8px;font-size:14.5px;color:#7a3a2e}
.blocked .never{font-weight:600;color:#8f2415}

/* 表 */
table.t{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);
  border-radius:10px;overflow:hidden;font-size:15px}
table.t th,table.t td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line)}
table.t th{background:#f7f4f0;font-size:13.5px;color:#5b534a;font-weight:600}
table.t tr:last-child td{border-bottom:none}
table.t td.num{font-variant-numeric:tabular-nums}
table.t tr.hl td{background:#fdf6f4}

.pill{display:inline-block;font-size:12px;padding:2px 9px;border-radius:999px;background:#eef4f0;color:var(--ok)}
.pill.red{background:#fbe9e6;color:var(--red-d)}
.pill.gold{background:#fbf3e2;color:#8a6516}

ul.plain{margin:0;padding-left:20px;color:var(--sub)}
ul.plain li{margin:6px 0}
.note{font-size:13.5px;color:#8a8078;margin-top:12px}
.danger{border-left:3px solid var(--red);padding-left:14px;background:#fff}

footer{padding:34px 0 60px;font-size:13.5px;color:#8a8078}
footer strong{color:#5b534a}
footer p{margin:6px 0}

.faq-search{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:8px;font-size:15px}
.faq-item{border-bottom:1px solid var(--line);padding:14px 0}
.faq-item:last-child{border-bottom:none}
.faq-item q{display:block;font-weight:600;color:var(--ink);quotes:none;margin-bottom:4px}
.faq-item p{margin:0;color:var(--sub);font-size:15px}
.faq-item.hide{display:none}