:root{
  --bg:#0e1020; --bg2:#141833; --card:#1b2046; --card2:#222a57;
  --line:#2c3360; --accent:#7c6cff; --accent2:#36d6c3;
  --text:#eef1ff; --muted:#9aa0c7; --danger:#ff6b8a; --ok:#36d6c3;
}
*{box-sizing:border-box;margin:0;padding:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;}
body{background:radial-gradient(1100px 600px at 80% -10%,#262c5e 0%,transparent 55%),var(--bg);
  color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased;}
a{color:var(--accent2);text-decoration:none;}
.muted{color:var(--muted);font-size:13px;}
.err{color:var(--danger);}

/* ---------- 落地页 ---------- */
.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px;}
.auth-shell{width:100%;max-width:920px;display:grid;grid-template-columns:1fr 1fr;gap:0;
  background:var(--card);border:1px solid var(--line);border-radius:22px;overflow:hidden;
  box-shadow:0 40px 100px rgba(0,0,0,.5);}
.auth-hero{background:linear-gradient(150deg,#2a2f63,#161a3a);padding:42px 36px;display:flex;flex-direction:column;justify-content:center;}
.logo-big{width:60px;height:60px;border-radius:16px;background:linear-gradient(135deg,var(--accent),var(--accent2));
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:30px;color:#0c0f22;margin-bottom:18px;}
.auth-hero h1{font-size:26px;margin-bottom:8px;}
.tagline{color:var(--muted);margin-bottom:22px;}
.feat{list-style:none;display:flex;flex-direction:column;gap:10px;}
.feat li{background:rgba(255,255,255,.04);padding:10px 14px;border-radius:10px;font-size:14px;}
.hero-sign{margin-top:24px;font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;}
.auth-card{padding:38px 34px;}
.tabs{display:flex;gap:8px;margin-bottom:22px;}
.tab{flex:1;padding:11px;border:1px solid var(--line);background:transparent;color:var(--muted);
  border-radius:11px;cursor:pointer;font-size:15px;font-weight:600;transition:.2s;}
.tab.active{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#0c0f22;border-color:transparent;}
label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px;}
input,textarea{width:100%;padding:12px 14px;border-radius:11px;border:1px solid var(--line);
  background:#11152e;color:var(--text);font-size:14px;outline:none;transition:.2s;resize:vertical;}
input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(124,108,255,.18);}
.form button,.upload-btn,.primary,.ghost{margin-top:18px;width:100%;padding:13px;border:none;border-radius:11px;
  font-size:15px;font-weight:700;cursor:pointer;transition:.2s;}
.form button{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#0c0f22;}
.form button:hover{filter:brightness(1.08);}
.msg{margin-top:14px;padding:11px 13px;border-radius:10px;font-size:13px;display:none;}
.msg.ok{display:block;background:rgba(54,214,195,.12);border:1px solid rgba(54,214,195,.4);color:#7ff0e2;}
.msg.err{display:block;background:rgba(255,107,138,.12);border:1px solid rgba(255,107,138,.4);color:#ff9baf;}
.privacy{margin-top:20px;background:rgba(54,214,195,.07);border:1px solid rgba(54,214,195,.25);
  border-radius:12px;padding:14px;}
.privacy strong{color:var(--ok);}
.privacy p{margin-top:6px;font-size:12.5px;color:var(--muted);line-height:1.7;}
.admin-link{display:block;text-align:center;margin-top:18px;font-size:13px;}

/* ---------- 仪表盘 ---------- */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;
  border-bottom:1px solid var(--line);background:rgba(20,24,51,.7);backdrop-filter:blur(8px);position:sticky;top:0;z-index:20;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;}
.logo-sm{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));
  display:flex;align-items:center;justify-content:center;color:#0c0f22;font-weight:800;}
.top-right{display:flex;align-items:center;gap:14px;}
.badge{padding:4px 12px;border-radius:20px;font-size:12px;font-weight:700;}
.badge.vip{background:linear-gradient(135deg,#ffd479,#ff9d4d);color:#3a2400;}
.badge.free{background:#2c3360;color:var(--muted);}
.who{font-size:14px;color:var(--muted);}
.btn-quiet{font-size:13px;color:var(--muted);padding:6px 12px;border:1px solid var(--line);border-radius:9px;}
.tabs-nav{display:flex;gap:8px;padding:16px 24px 0;max-width:1080px;margin:0 auto;flex-wrap:wrap;}
.tnav{padding:10px 18px;border:1px solid var(--line);background:var(--card);color:var(--muted);
  border-radius:12px 12px 0 0;cursor:pointer;font-size:14px;font-weight:600;}
.tnav.active{background:var(--card2);color:var(--text);border-bottom-color:var(--card2);}
.container{max-width:1080px;margin:0 auto;padding:22px 24px 80px;}
.panel{display:none;}
.panel.active{display:block;}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;margin-bottom:20px;}
.card h3{font-size:17px;margin-bottom:6px;}
.uploader{border:2px dashed var(--line);border-radius:14px;padding:22px;text-align:center;margin:14px 0;}
.upload-btn{margin-top:0;width:auto;padding:11px 22px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#0c0f22;}
.upload-btn:disabled{opacity:.6;cursor:wait;}
.caption-row{margin:10px 0;}
.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#0c0f22;width:auto;padding:11px 22px;margin-top:10px;}
.ghost{background:transparent;border:1px solid var(--line);color:var(--text);width:auto;padding:10px 16px;margin-top:0;}
.feed{display:flex;flex-direction:column;gap:14px;margin-top:16px;}
.feed-item{background:var(--card2);border:1px solid var(--line);border-radius:12px;padding:14px;}
.feed-head{font-size:12px;color:var(--muted);margin-bottom:8px;}
.feed-head span{margin-left:4px;}
.thumb{max-width:100%;border-radius:10px;margin-bottom:8px;display:block;}
.feed-body{font-size:14.5px;line-height:1.7;}
.feed-cap{margin-top:8px;font-size:13px;color:var(--muted);font-style:italic;}

/* 对话 */
.chat-card{display:flex;flex-direction:column;height:70vh;}
.chat-box{flex:1;overflow-y:auto;padding:10px 4px;display:flex;flex-direction:column;gap:12px;}
.bubble{max-width:78%;padding:12px 15px;border-radius:14px;font-size:14.5px;line-height:1.7;white-space:pre-wrap;word-break:break-word;}
.bubble.user{align-self:flex-end;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#0c0f22;border-bottom-right-radius:4px;}
.bubble.assistant{align-self:flex-start;background:var(--card2);border:1px solid var(--line);border-bottom-left-radius:4px;}
.chat-input{display:flex;gap:10px;margin-top:14px;}
.chat-input input{flex:1;margin-top:0;}
.chat-input .primary{margin-top:0;}

/* 日记 */
.diary-actions{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0;}
.diary-actions .ghost{margin:0;}
.diary-view{margin-top:14px;}
.diary-doc{background:var(--card2);border:1px solid var(--line);border-radius:12px;padding:20px;font-size:15px;line-height:1.9;white-space:pre-wrap;}
.diary-meta{margin-top:10px;font-size:12px;color:var(--muted);text-align:right;}

/* 锁定遮罩 */
.lock-overlay{position:fixed;inset:0;background:rgba(8,10,22,.82);display:flex;align-items:center;justify-content:center;z-index:50;padding:24px;}
.lock-box{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:32px;max-width:380px;text-align:center;}
.lock-emoji{font-size:46px;}
.lock-box h3{margin:10px 0;}
.lock-box p{font-size:13.5px;color:var(--muted);line-height:1.7;margin-bottom:12px;}
.lock-box .sign{font-size:11.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;}

/* 响应式 */
@media(max-width:760px){
  .auth-shell{grid-template-columns:1fr;}
  .auth-hero{display:none;}
  .container{padding:16px;}
}