:root{
  --ink:#0f1c24;
  --muted:#5a6b78;
  --line:#d2dde6;
  --accent:#0d7a6f;
  --accent2:#0a5c54;
  --accent-soft:rgba(13,122,111,.12);
  --surface:#fff;
  --bg0:#eef3f7;
  --bg1:#e3ebf2;
  --shadow:0 1px 2px rgba(15,28,36,.04),0 20px 50px rgba(15,28,36,.08);
  --nav-h:64px;
  --font:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --display:system-ui,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);color:var(--ink);min-height:100vh;
  background:
    radial-gradient(1000px 560px at 8% -10%,rgba(13,122,111,.16),transparent 55%),
    radial-gradient(800px 480px at 100% 0%,rgba(36,90,140,.09),transparent 52%),
    linear-gradient(168deg,var(--bg0),var(--bg1));
  line-height:1.5;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
.site-nav{
  position:sticky;top:0;z-index:50;height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 clamp(16px,4vw,40px);
  background:rgba(255,255,255,.78);backdrop-filter:blur(14px) saturate(1.2);
  border-bottom:1px solid rgba(210,221,230,.85);
}
.site-brand{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--display);
  font-weight:700;font-size:17px;letter-spacing:.02em;flex-shrink:0;
}
.site-mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(145deg,#129a8c,var(--accent2));
  display:grid;place-items:center;color:#fff;font-size:13px;font-weight:700;
  box-shadow:0 6px 16px rgba(13,122,111,.28);
}
.site-links{display:flex;align-items:center;gap:4px}
.site-links a{
  padding:8px 14px;border-radius:999px;font-size:14px;font-weight:500;color:var(--muted);
  transition:color .2s,background .2s;
}
.site-links a:hover,.site-links a.is-on{color:var(--ink);background:rgba(15,28,36,.05)}
.site-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 16px;border-radius:10px;font-size:13px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:background .2s,color .2s,border-color .2s;
}
.nav-btn-ghost{background:#fff;color:var(--accent2);border-color:var(--line)}
.nav-btn-ghost:hover{border-color:var(--accent);background:var(--accent-soft)}
.nav-btn-solid{background:var(--accent);color:#fff}
.nav-btn-solid:hover{background:var(--accent2)}
.nav-btn-solid.is-user{
  background:#fff;color:var(--ink);border:1px solid var(--line);
  max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.nav-btn-solid.is-user:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--accent2)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
.site-drawer{
  display:none;position:fixed;inset:var(--nav-h) 0 auto 0;z-index:49;
  background:rgba(255,255,255,.96);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);padding:12px 16px 18px;
  flex-direction:column;gap:4px;
}
.site-drawer.open{display:flex}
.site-drawer a{
  padding:12px 14px;border-radius:10px;font-weight:500;color:var(--ink);
}
.site-drawer a:hover{background:rgba(15,28,36,.05)}
.site-drawer .nav-btn{width:100%;margin-top:6px}
.page-shell{padding:28px 16px 56px;min-height:calc(100vh - var(--nav-h))}
.page-shell.narrow{max-width:560px;margin:0 auto}
.site-foot{
  text-align:center;padding:28px 16px 40px;font-size:12px;color:var(--muted);
}
.site-foot a{color:var(--accent2);font-weight:600}
body.modal-open{overflow:hidden}
.login-modal[hidden]{display:none !important}
.login-modal{
  position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;
  padding:20px 14px;
}
.login-modal__backdrop{
  position:absolute;inset:0;background:rgba(15,28,36,.45);backdrop-filter:blur(4px);
}
.login-modal__panel{
  position:relative;z-index:1;width:100%;max-width:400px;
  background:#fff;border:1px solid var(--line);border-radius:18px;
  box-shadow:0 24px 64px rgba(15,28,36,.22);padding:26px 22px 22px;
  animation:lmIn .22s ease;
}
@keyframes lmIn{
  from{opacity:0;transform:translateY(10px) scale(.98)}
  to{opacity:1;transform:none}
}
.login-modal__x{
  position:absolute;right:12px;top:10px;width:36px;height:36px;border:0;background:transparent;
  font-size:24px;line-height:1;color:var(--muted);cursor:pointer;border-radius:8px;
}
.login-modal__x:hover{background:rgba(15,28,36,.06);color:var(--ink)}
.login-modal__panel h2{
  font-family:var(--display);font-size:20px;font-weight:700;margin:0 28px 6px 0;
}
.login-modal__sub{font-size:13px;color:var(--muted);margin-bottom:14px;line-height:1.5}
.login-modal__err{color:#c43c3c;font-size:13px;min-height:18px;margin-bottom:8px}
.login-modal__panel label{
  display:block;font-size:12px;font-weight:600;color:var(--muted);margin:0 0 6px;
}
.login-modal__panel input{
  width:100%;padding:11px 12px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);margin-bottom:12px;outline:none;
}
.login-modal__panel input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(13,122,111,.12)}
.login-modal__pass{position:relative}
.login-modal__pass input{padding-right:42px;margin-bottom:12px}
.login-modal__eye{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);margin-top:-6px;
  width:32px;height:32px;border:0;background:transparent;cursor:pointer;color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;
}
.login-modal__cap{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px}
.login-modal__cap input{flex:1;margin-bottom:0}
.login-modal__capimg{
  flex-shrink:0;width:132px;height:48px;border-radius:10px;border:1px solid var(--line);
  background:#f7f9fc;cursor:pointer;overflow:hidden;display:flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--muted);
}
.login-modal__capimg img{width:100%;height:100%;object-fit:cover}
.login-modal__btn{
  width:100%;padding:12px;border:0;border-radius:10px;background:var(--accent);color:#fff;
  font-weight:600;font-size:14px;cursor:pointer;margin-top:4px;
}
.login-modal__btn:hover{background:var(--accent2)}
.login-modal__btn:disabled{opacity:.55;cursor:not-allowed}
.login-modal__hint{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.45;text-align:center}
@media (max-width:760px){
  .site-links{display:none}
  .site-actions .nav-btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
}