/* ===== 登录/注册 · 滑动卡片（参考 poetize.cn/user） ===== */
.auth-bg {
  position: fixed; inset: 0; z-index: -1;
  background: url('/static/img/bj.jpg') center/cover no-repeat;
}
.auth-bg::after {
  content:''; position:absolute; inset:0;
  background: linear-gradient(135deg, rgba(0,0,0,.3), rgba(0,0,0,.55));
}
html:not(.dark) .auth-bg::after { background: linear-gradient(180deg, rgba(0,0,0,.35), rgba(0,0,0,.5)); }

.myCenter { display:flex; justify-content:center; align-items:center; flex-direction:column; }
.in-up-container { height:100vh; position:relative; display:flex; align-items:center; justify-content:center; }
#loginAndRegist.in-up {
  width: 750px; max-width: 100%; min-height: 460px;
  position: relative; overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 15px 30px rgba(0,0,0,.25), 0 10px 10px rgba(0,0,0,.18);
  background: rgba(255,255,255,.95);
  color: #1f1f1f;
  transition: all .5s ease;
}
html.dark #loginAndRegist.in-up { background: rgba(30,26,52,.95); color:#e4e4e4; }
#loginAndRegist.in-up p { font-size:14px; letter-spacing:1px; margin:20px 0 30px; }
#loginAndRegist.in-up a { color:#1f1f1f; font-size:14px; text-decoration:none; margin:15px 0; cursor:pointer; }
html.dark #loginAndRegist.in-up a { color:#b8b8b8; }

.form-container { position:absolute; top:0; height:100%; transition:all .5s ease-in-out; }
.sign-in-container { left:0; width:50%; }
.sign-up-container { left:0; width:50%; opacity:0; }
.form-container .myCenter { padding:0 30px; height:100%; }
.form-container h1 { font-size:26px; margin-bottom:14px; }
.form-container input {
  width:100%; box-sizing:border-box;
  background:#eee; border:none; border-radius:4px;
  padding:12px 16px; margin:8px 0; font-size:15px; outline:none;
  color:#1f1f1f;
}
html.dark .form-container input { background:rgba(255,255,255,.08); color:#e4e4e4; }
.form-container input::placeholder { color:#999; }
.code-row { display:flex; align-items:center; gap:10px; width:100%; }
.code-row input { flex:1; }
.random_code { width:100px; height:38px; border-radius:4px; object-fit:cover; cursor:pointer; }

.in-up button {
  border:none; border-radius:2rem;
  background:#ff4b2b; color:#fff; font-size:15px; font-weight:bold;
  padding:11px 42px; letter-spacing:2px; cursor:pointer; margin-top:14px;
}
.in-up button:hover { animation: auth-scale .8s ease-in-out; }
@keyframes auth-scale { 0%,100%{transform:scale(1)} 50%{transform:scale(1.06)} }
.in-up button.ghost { background:transparent; border:1px solid #fff; color:#fff; }
.in-up button.ghost:hover { background:rgba(255,255,255,.15); animation:none; }

.overlay-container { position:absolute; top:0; left:50%; width:50%; height:100%; overflow:hidden; transition:all .5s ease-in-out; }
.overlay { position:relative; left:-100%; width:200%; height:100%; background:linear-gradient(90deg,#ff4b2b,#ff416c); color:#fff; }
.overlay-panel { position:absolute; top:0; display:flex; flex-direction:column; justify-content:center; align-items:center; height:100%; width:50%; transition:all .5s ease-in-out; text-align:center; padding:0 30px; box-sizing:border-box; }
.overlay-right { right:0; transform:translateY(0); }
.overlay-left { transform:translateY(-20%); }
.overlay-panel h1 { font-size:24px; margin-bottom:8px; }
.overlay-panel p { margin:6px 0 20px; }

#loginAndRegist.in-up.right-panel-active .sign-in-container { transform:translateY(100%); }
#loginAndRegist.in-up.right-panel-active .overlay-container { transform:translateX(-100%); }
#loginAndRegist.in-up.right-panel-active .sign-up-container { transform:translateX(100%); opacity:1; }
#loginAndRegist.in-up.right-panel-active .overlay { transform:translateX(50%); }
#loginAndRegist.in-up.right-panel-active .overlay-left { transform:translateY(0); }
#loginAndRegist.in-up.right-panel-active .overlay-right { transform:translateY(20%); }

@media (max-width: 820px) {
  #loginAndRegist.in-up { width:92%; min-height:420px; }
}