/* hong.fun 红 — warm paper, vermilion, gold. Chinese exchange convention: RED IS UP, green is down. */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@500;700;900&family=Noto+Sans+SC:wght@400;500;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');
:root{--paper:#f7efe0;--paper2:#efe4cf;--ink:#1c1410;--ink2:#5a4a3a;--ink3:#9a8a76;--red:#c8102e;--red2:#a60d25;--gold:#c99a2e;--gold2:#e6c15a;--green:#1f7a4d;--line:#d9c9a8;--seal:#b3121f}
*{box-sizing:border-box}
html{background:var(--paper2)}
body{margin:0;background:var(--paper);color:var(--ink);font-family:'Noto Sans SC','Helvetica Neue',Arial,sans-serif;font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(rgba(200,16,46,.045) 1px,transparent 1.2px);background-size:18px 18px}
.serif{font-family:'Noto Serif SC',Georgia,serif}.mono{font-family:'IBM Plex Mono',monospace;font-variant-numeric:tabular-nums}
.up{color:var(--red);font-weight:700}.down{color:var(--green);font-weight:700}.dim{color:var(--ink3)}.gold{color:var(--gold)}
a{color:var(--red);text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
/* frame + header */
.frame{border-top:10px solid var(--red);border-bottom:4px solid var(--gold)}
.nav{display:flex;justify-content:space-between;align-items:center;padding:16px 0;border-bottom:2px solid var(--ink)}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;letter-spacing:.02em;font-size:20px;font-family:"IBM Plex Mono",monospace}
.logo .zi{font-family:'Noto Serif SC',serif;font-weight:900;font-size:30px;color:var(--red);line-height:1}
.nav .links{display:flex;gap:18px;align-items:center;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.nav .links a{color:var(--ink2)}.nav .links a.on{color:var(--red);border-bottom:2px solid var(--red)}
.btn{display:inline-block;font:inherit;font-weight:700;letter-spacing:.1em;text-transform:uppercase;font-size:12px;background:var(--red);color:#fff;border:2px solid var(--red);padding:11px 20px;cursor:pointer;border-radius:2px}
.btn.gold{background:var(--gold);border-color:var(--gold);color:var(--ink)}
.btn.ghost{background:transparent;color:var(--red)}
.btn.big{font-size:14px;padding:16px 32px;letter-spacing:.16em}
.btn:disabled{opacity:.45;cursor:default}
/* seal stamp */
.seal{display:inline-flex;align-items:center;justify-content:center;width:64px;height:64px;border:3px solid var(--seal);color:var(--seal);font-family:'Noto Serif SC',serif;font-weight:900;font-size:26px;line-height:1;transform:rotate(-6deg);background:rgba(179,18,31,.06);box-shadow:inset 0 0 0 2px var(--paper),inset 0 0 0 3px var(--seal);letter-spacing:.02em;text-align:center}
.seal.sm{width:40px;height:40px;font-size:16px;border-width:2px}
/* cards & tables */
.card{background:#fffaf0;border:1px solid var(--line);border-top:3px solid var(--red);padding:16px 18px;box-shadow:0 1px 0 var(--line)}
.card h4{margin:0 0 10px;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink3);font-weight:700;display:flex;justify-content:space-between}
.kv{display:flex;justify-content:space-between;gap:10px;padding:5px 0;border-bottom:1px dotted var(--line);font-size:13px;color:var(--ink2)}
.kv b{color:var(--ink);font-family:'IBM Plex Mono',monospace;font-weight:600}.kv:last-child{border-bottom:0}
table{width:100%;border-collapse:collapse;font-size:13px}
th{text-align:left;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink3);border-bottom:2px solid var(--ink);padding:8px 8px;font-weight:700}
td{padding:9px 8px;border-bottom:1px solid var(--line);vertical-align:middle}
td.n,th.n{text-align:right;font-family:'IBM Plex Mono',monospace;font-variant-numeric:tabular-nums}
tr.row{cursor:pointer}tr.row:hover td{background:rgba(200,16,46,.05)}
.big{font-family:'IBM Plex Mono',monospace;font-size:30px;font-weight:600;letter-spacing:-.01em;line-height:1.1}
.tiny{font-size:11px;color:var(--ink3);letter-spacing:.04em}
.chip{display:inline-block;border:1px solid var(--line);padding:1px 8px;font-size:11px;letter-spacing:.08em;font-family:'IBM Plex Mono',monospace;color:var(--ink2);background:#fffaf0;border-radius:2px;margin-right:4px}
.chip.red{border-color:var(--red);color:var(--red)}.chip.gold{border-color:var(--gold);color:var(--gold);background:rgba(201,154,46,.08)}.chip.green{border-color:var(--green);color:var(--green)}
/* board strip: red up / green down, exchange-hall LED feel on paper */
.strip{display:flex;gap:0;overflow:hidden;border:1px solid var(--line);background:#1c1410;color:#f7efe0;font-family:'IBM Plex Mono',monospace;font-size:12px;white-space:nowrap}
.strip .in{display:inline-flex;animation:mv 40s linear infinite}
.strip span{padding:9px 18px;border-right:1px solid #3a2e24}
.strip .u{color:#ff5a6e}.strip .d{color:#4ed08a}
@keyframes mv{from{transform:translateX(0)}to{transform:translateX(-50%)}}
/* progress */
.bar{height:10px;background:var(--paper2);border:1px solid var(--line);position:relative;overflow:hidden}
.bar i{position:absolute;left:0;top:0;bottom:0;background:linear-gradient(90deg,var(--red),var(--gold))}
.cols{display:grid;grid-template-columns:1.5fr 1fr;gap:22px}.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.field{margin-bottom:10px}.field label{display:block;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink3);margin-bottom:4px;font-weight:700}
.field input,.field select,.field textarea{width:100%;font:inherit;font-size:15px;padding:10px 12px;border:1px solid var(--line);background:#fffaf0;color:var(--ink);outline:none;border-radius:2px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--red)}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:10px 18px;font-size:13px;border-left:4px solid var(--red);display:none;z-index:9}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:26px 0 40px;border-top:2px solid var(--ink);margin-top:40px;font-size:11px;color:var(--ink3)}
.spark{height:30px;width:100%;display:block}
@media (max-width:900px){.cols,.cols3{grid-template-columns:1fr}.wrap{padding:0 14px}.nav .links{gap:10px}}