:root {
  --bg: #0f1220;
  --bg-soft: #171b2e;
  --card: #1e2440;
  --card-2: #262d4f;
  --line: #2c3358;
  --txt: #e8ebff;
  --txt-dim: #9aa3c7;
  --primary: #6c8cff;
  --primary-2: #8a6cff;
  --accent: #38e0b0;
  --warn: #ffb454;
  --danger: #ff6b81;
  --radius: 16px;
  --shadow: 0 8px 30px rgba(0,0,0,.35);
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--txt); -webkit-font-smoothing: antialiased; position: relative; isolation: isolate;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(2px 2px at 18% 28%, rgba(255,255,255,.85), transparent),
    radial-gradient(2px 2px at 68% 18%, rgba(255,255,255,.6), transparent),
    radial-gradient(1.5px 1.5px at 42% 58%, rgba(255,255,255,.7), transparent),
    radial-gradient(1.5px 1.5px at 88% 72%, rgba(255,255,255,.5), transparent),
    radial-gradient(1px 1px at 30% 82%, rgba(255,255,255,.6), transparent),
    linear-gradient(180deg, #0a0f24 0%, #152147 46%, #27406f 100%);
  background-repeat: no-repeat;
}
.hidden { display: none !important; }
button { font-family: inherit; cursor: pointer; }

.login-view { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.login-card { width:100%; max-width:380px; background:rgba(30,36,64,.72); border:1px solid var(--line);
  border-radius:24px; padding:32px 26px; box-shadow:var(--shadow); text-align:center; backdrop-filter:blur(14px); }
.brand .logo { font-size:48px; }
.brand h1 { margin:8px 0 4px; font-size:26px; letter-spacing:2px; }
.subtitle { color:var(--txt-dim); font-size:13px; margin:0 0 22px; }
#login-form { display:flex; flex-direction:column; gap:10px; text-align:left; }
#login-form label { font-size:13px; color:var(--txt-dim); }
#login-form input { background:var(--bg-soft); border:1px solid var(--line); color:var(--txt); padding:13px 14px; border-radius:12px; font-size:16px; outline:none; }
#login-form input:focus { border-color:var(--primary); }
#login-btn { margin-top:8px; background:linear-gradient(135deg,var(--primary),var(--primary-2)); color:#fff; border:none; padding:13px; border-radius:12px; font-size:16px; font-weight:600; }
.hint { font-size:12px; color:var(--txt-dim); text-align:center; margin:6px 0 0; }

.main-view { min-height:100vh; display:flex; flex-direction:column; }
.topbar { position:sticky; top:0; z-index:20; display:flex; align-items:center; justify-content:space-between;
  padding:12px 16px; background:rgba(15,18,32,.82); backdrop-filter:blur(10px); border-bottom:1px solid var(--line); }
.topbar-left { display:flex; align-items:center; gap:8px; }
.topbar-center { flex:1; text-align:center; }
.online-pill { background:var(--card-2); border:1px solid var(--line); padding:4px 12px; border-radius:999px; font-size:13px; color:var(--accent); }
.topbar-right { display:flex; align-items:center; gap:10px; }
.me-nick { font-size:13px; color:var(--txt-dim); }
.ghost-btn { background:transparent; border:1px solid var(--line); color:var(--txt-dim); padding:6px 12px; border-radius:10px; font-size:13px; }

.module-root { flex:1; padding:16px; max-width:760px; width:100%; margin:0 auto; }

.tabbar { position:sticky; bottom:0; display:flex; justify-content:space-around;
  background:rgba(15,18,32,.92); backdrop-filter:blur(10px); border-top:1px solid var(--line); padding:6px 4px calc(6px + env(safe-area-inset-bottom)); }
.tab { flex:1; background:none; border:none; color:var(--txt-dim); display:flex; flex-direction:column; align-items:center; gap:2px; font-size:11px; padding:6px 0; border-radius:12px; }
.tab span { font-size:11px; }
.tab.active { color:var(--primary); background:var(--card-2); }

.card { background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:18px; margin-bottom:14px; }
.card h2 { margin:0 0 12px; font-size:17px; }
.row { display:flex; align-items:center; justify-content:space-between; gap:12px; }
.muted { color:var(--txt-dim); font-size:13px; }
.btn { background:linear-gradient(135deg,var(--primary),var(--primary-2)); color:#fff; border:none; padding:11px 16px; border-radius:12px; font-size:15px; font-weight:600; }
.btn.ghost { background:var(--card-2); color:var(--txt); border:1px solid var(--line); }
.btn:disabled { opacity:.55; }
.badge { background:var(--card-2); border:1px solid var(--line); padding:3px 10px; border-radius:999px; font-size:12px; }
.tag { display:inline-block; background:rgba(108,140,255,.18); color:var(--primary); padding:2px 8px; border-radius:8px; font-size:12px; }
.stat-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; }
.stat { background:var(--card-2); border:1px solid var(--line); border-radius:14px; padding:14px; text-align:center; }
.stat .num { font-size:24px; font-weight:700; color:var(--accent); }
.stat .label { font-size:12px; color:var(--txt-dim); margin-top:4px; }
.list { display:flex; flex-direction:column; gap:10px; }
.item { background:var(--card-2); border:1px solid var(--line); border-radius:12px; padding:12px 14px; }
.avatar { width:38px; height:38px; border-radius:50%; background:linear-gradient(135deg,var(--primary),var(--primary-2)); display:inline-flex; align-items:center; justify-content:center; font-size:18px; flex:none; }
.input { width:100%; background:var(--bg-soft); border:1px solid var(--line); color:var(--txt); padding:11px 12px; border-radius:12px; font-size:15px; outline:none; }
.input:focus { border-color:var(--primary); }

.chat-box { display:flex; flex-direction:column; gap:8px; max-height:50vh; overflow-y:auto; padding-right:4px; }
.msg { display:flex; gap:8px; align-items:flex-start; }
.msg .body { background:var(--card-2); border:1px solid var(--line); padding:8px 12px; border-radius:12px; font-size:14px; }
.msg .nick { font-size:12px; color:var(--txt-dim); margin-bottom:2px; }
.chat-input-row { display:flex; gap:8px; margin-top:10px; }

.notice-bar { position:sticky; top:56px; z-index:30; margin:0 auto 12px; max-width:760px;
  background:linear-gradient(135deg,rgba(108,140,255,.95),rgba(138,108,255,.95)); color:#fff; padding:10px 14px; border-radius:12px; font-size:14px; display:flex; align-items:center; gap:8px; box-shadow:var(--shadow); }
.notice-bar .close { margin-left:auto; background:rgba(255,255,255,.22); border:none; color:#fff; border-radius:8px; padding:2px 9px; cursor:pointer; }

@media (min-width:720px) { .module-root { padding-top:22px; } .tabbar { max-width:760px; margin:0 auto; position:static; border-radius:16px 16px 0 0; } }