/* 锈者账号中心 · 变体 B 战术网格 视觉系统。表单逻辑纯净，特效只在背景/外壳层。 */
:root{
  --bg:#080a0c; --panel:rgba(14,17,21,.74); --ink:#e9ebf0; --muted:#868b96;
  --line:rgba(255,255,255,.10); --accent:#e2502b; --accent2:#ff7a48;
  --ok:#4ccf8e; --err:#ff6a5e;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);overflow:hidden}
canvas#bg{position:fixed;inset:0;z-index:0;display:block}
.grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.045;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.scan{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.5;
  background:repeating-linear-gradient(0deg,rgba(0,0,0,0) 0,rgba(0,0,0,0) 2px,rgba(0,0,0,.18) 3px)}
.vignette{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 45%,transparent 42%,rgba(0,0,0,.6) 100%)}

.nav{position:fixed;top:0;left:0;right:0;z-index:5;height:64px;display:flex;align-items:center;
  justify-content:space-between;padding:0 34px;mix-blend-mode:difference}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.02em;font-size:15px;
  color:inherit;text-decoration:none}
.brand .mk{width:22px;height:22px;border:2px solid var(--accent);transform:rotate(45deg);
  box-shadow:0 0 18px rgba(226,80,43,.55) inset}
.navtag{font-family:var(--mono);font-size:11px;letter-spacing:.28em;color:var(--muted);text-transform:uppercase}

.wrap{position:relative;z-index:5;min-height:100vh;display:grid;place-items:center;padding:88px 24px 64px}
.panel{width:392px;max-width:100%;background:var(--panel);backdrop-filter:blur(16px);
  border:1px solid var(--line);border-radius:14px;padding:34px 32px 30px;position:relative;
  box-shadow:0 40px 120px -30px rgba(0,0,0,.85),0 0 0 1px rgba(255,255,255,.02) inset}
.panel::before,.panel::after{content:"";position:absolute;width:14px;height:14px;border:2px solid var(--accent);opacity:.75}
.panel::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.panel::after{bottom:-1px;right:-1px;border-left:0;border-top:0}
.hud{position:absolute;top:12px;right:14px;font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;
  color:var(--accent2);opacity:.8}

.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.34em;color:var(--accent2);
  text-transform:uppercase;margin:0 0 14px;display:flex;align-items:center;gap:9px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent)}
h1{font-size:29px;line-height:.94;letter-spacing:-.03em;font-weight:800;margin:0 0 4px}
.sub{color:var(--muted);font-size:13.5px;margin:0 0 26px;line-height:1.5}

label{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--muted);margin:0 0 7px}
.field{margin-bottom:17px}
input{width:100%;padding:13px 14px;background:rgba(6,8,10,.72);border:1px solid var(--line);
  border-radius:9px;color:var(--ink);font-size:14.5px;font-family:var(--sans);transition:border-color .18s,box-shadow .18s}
input::placeholder{color:#555a64}
input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(226,80,43,.16)}
input:disabled{opacity:.55}

.row{display:flex;justify-content:flex-end;margin:-4px 0 22px}
.row.between{justify-content:space-between}
.row a{color:var(--muted);font-size:12.5px;text-decoration:none}
.row a:hover{color:var(--accent2)}

.btn{width:100%;padding:14px;border:0;border-radius:9px;cursor:pointer;font-weight:700;font-size:14.5px;
  color:#fff;letter-spacing:.02em;background:linear-gradient(180deg,var(--accent2),var(--accent));
  box-shadow:0 10px 30px -8px rgba(226,80,43,.6);transition:filter .15s}
.btn:hover{filter:brightness(1.07)}
.btn:disabled{filter:grayscale(.5) brightness(.8);cursor:progress}
.btn .arr{margin-left:9px;font-family:var(--mono)}

.divider{display:flex;align-items:center;gap:12px;margin:24px 0 18px;color:#4b505b;font-size:11px;
  font-family:var(--mono);letter-spacing:.2em}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--line)}
.foot{text-align:center;font-size:13px;color:var(--muted)}
.foot a{color:var(--accent2);text-decoration:none;font-weight:600}

.msg{margin:0 0 16px;padding:10px 12px;border-radius:8px;font-size:13px;line-height:1.5;display:none}
.msg.show{display:block}
.msg.err{background:rgba(255,106,94,.10);border:1px solid rgba(255,106,94,.35);color:#ffb3ab}
.msg.ok{background:rgba(76,207,142,.10);border:1px solid rgba(76,207,142,.35);color:#9fe6c4}

.badge{position:fixed;bottom:20px;left:0;right:0;z-index:5;text-align:center;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.26em;color:#3a3e47;text-transform:uppercase}

.pill{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;
  letter-spacing:.1em;padding:4px 10px;border-radius:999px;border:1px solid var(--line)}
.pill.verified{color:var(--ok);border-color:rgba(76,207,142,.4)}
.pill.pending{color:var(--accent2);border-color:rgba(255,122,72,.4)}
.pill.none{color:var(--muted)}
.kv{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.kv:last-child{border-bottom:0}
.kv .k{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.kv .v{font-size:14px}

@media (prefers-reduced-motion:reduce){canvas#bg{opacity:.6}}
@media (max-width:440px){.panel{padding:28px 22px}}