:root{--theme-color:#355cc2;--theme-hover-color:rgba(53,92,194,.9);--background-color:#f5f7fa;--card-background:#fff;--primary-text-color:#333;--secondary-text-color:#666;--border-color:#e8e8e8;--input-bg-color:#f9f9f9;--input-border-color:transparent}*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;padding:0;overflow:hidden}body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"Microsoft YaHei",sans-serif;background:var(--background-color);color:var(--primary-text-color)}.auth-page{width:100%;height:100vh;display:flex;position:relative;overflow:hidden}.auth-visual{flex:1;min-width:500px;position:relative;display:flex;align-items:center;justify-content:center;height:100%;background-image:var(--auth-image),linear-gradient(135deg,#15204b,#355cc2);background-position:center;background-size:cover;background-repeat:no-repeat;color:#fff}.visual-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.18),rgba(0,0,0,.38))}.visual-brand,.visual-greeting,.visual-dots{position:absolute;z-index:2}.visual-brand{top:30px;left:30px;display:block}.brand-mark{display:none}.visual-brand strong{display:block;font-size:1.5rem;font-weight:700;line-height:1.2}.visual-brand span{display:none}.visual-greeting{left:30px;bottom:30px;max-width:70%}.visual-greeting p{font-size:1.5rem;font-weight:600;margin:0 0 8px}.visual-greeting h1{font-size:2rem;line-height:1.15;margin:0 0 10px;font-weight:700}.visual-greeting span{display:block;font-size:.95rem;line-height:1.7;opacity:.88}.visual-dots{display:none}.auth-panel{flex:.8;min-width:320px;max-width:520px;display:flex;flex-direction:column;justify-content:center;position:relative;background-color:var(--background-color);overflow-y:auto;height:100%;box-shadow:none;padding:0}.panel-toolbar{position:absolute;top:20px;left:25px;right:25px;height:42px;display:block;z-index:110}.back-link{position:absolute;top:0;left:0;height:42px;padding:0 16px;border-radius:999px;display:inline-flex;align-items:center;gap:7px;color:#3f4652;text-decoration:none;font-weight:700;font-size:14px;background:rgba(255,255,255,.72);border:1px solid rgba(53,92,194,.13);box-shadow:0 10px 26px rgba(24,39,75,.08);backdrop-filter:blur(12px);transition:all .22s ease}.theme-toggle{width:40px;height:40px;border-radius:50%;border:none;background:var(--card-background);color:var(--primary-text-color);display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,.08);cursor:pointer;position:absolute;right:0;top:0}.login-form-shell{padding:40px;width:100%;max-width:420px;margin:0 auto;display:flex;flex-direction:column;justify-content:center}.auth-header{margin-bottom:2rem;text-align:center}.auth-logo{width:56px;height:56px;border-radius:16px;margin:0 auto 18px;background:var(--theme-color);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:24px}.auth-logo span{display:block}.mobile-logo,.eyebrow{display:none}.login-form-shell h2{font-size:1.75rem;font-weight:700;margin:0 0 .5rem;color:var(--primary-text-color);letter-spacing:0;line-height:1.2}.subtitle{font-size:1rem;color:var(--secondary-text-color);margin:0 0 1.5rem;line-height:1.5}.auth-form{display:block}.auth-form label{display:block;margin-bottom:1.5rem}.auth-form label>span{display:block;font-size:1.08rem;font-weight:700;margin:0 0 .5rem;color:var(--primary-text-color)}.auth-form b{color:#f56565}.input-wrap{position:relative;width:100%;height:45px;border-radius:8px;border:1px solid var(--input-border-color);background:var(--input-bg-color);display:flex;align-items:center;padding:0 12px 0 40px;gap:8px;transition:all .3s ease}.input-wrap:focus-within{border-color:var(--theme-color);box-shadow:0 0 0 3px rgba(53,92,194,.1);background:#fff}.input-wrap>svg:first-child{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:20px;height:20px;fill:none;stroke:var(--secondary-text-color);stroke-width:2}.input-wrap input{width:100%;height:100%;border:0;outline:0;background:transparent;color:var(--primary-text-color);font-size:.95rem}.input-wrap input::placeholder{color:#aaa}.show-pass{border:0;background:transparent;color:var(--secondary-text-color);cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;margin-left:6px;font-size:13px;font-weight:500}.show-pass svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2}.form-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;font-size:.9rem}.remember{display:flex!important;align-items:center;gap:8px;color:var(--secondary-text-color);font-weight:400}.remember input{width:16px;height:16px;margin:0;accent-color:var(--theme-color)}.form-row a{color:var(--theme-color);text-decoration:none;font-weight:500}.primary-btn,.secondary-btn{width:100%;height:45px;border-radius:8px;display:flex;align-items:center;justify-content:center;border:0;text-decoration:none;font-size:1.08rem;font-weight:700;cursor:pointer;transition:all .3s ease}.primary-btn{background:var(--theme-color);color:#fff}.primary-btn:hover{background:var(--theme-hover-color);transform:translateY(-1px)}.primary-btn span{display:inline-flex;margin-left:6px;font-size:20px;line-height:1}.divider{display:flex;align-items:center;margin:1.5rem 0;color:var(--secondary-text-color);font-size:.9rem}.divider:before,.divider:after{content:"";height:1px;background:var(--border-color);flex:1}.divider span{padding:0 12px;white-space:nowrap}.secondary-btn{background:transparent;color:var(--primary-text-color);border:1px solid var(--border-color)}.secondary-btn:hover{border-color:var(--theme-color);color:var(--theme-color)}.dark{--background-color:#101827;--card-background:#172033;--primary-text-color:#f2f5fb;--secondary-text-color:#a8b1c2;--border-color:#2b364a;--input-bg-color:#172033;--input-border-color:#263246}.dark .input-wrap:focus-within{background:#151e30}.dark .theme-toggle{background:#172033}@media(max-width:768px){html,body{overflow:auto}.auth-page{display:block;height:auto;min-height:100vh}.auth-visual{display:none}.auth-panel{max-width:none;min-width:0;width:100%;min-height:100vh;padding:0 20px}.panel-toolbar{position:absolute;top:20px;left:25px;right:25px;height:42px;display:block;z-index:110}.back-link{position:absolute;top:0;left:0;height:42px;padding:0 16px;border-radius:999px;display:inline-flex;align-items:center;gap:7px;color:#3f4652;text-decoration:none;font-weight:700;font-size:14px;background:rgba(255,255,255,.72);border:1px solid rgba(53,92,194,.13);box-shadow:0 10px 26px rgba(24,39,75,.08);backdrop-filter:blur(12px);transition:all .22s ease}.login-form-shell{max-width:420px;padding:88px 0 40px}.auth-header{margin-bottom:1.6rem}}

.back-link:hover{color:var(--theme-color);border-color:rgba(53,92,194,.28);background:#fff;box-shadow:0 14px 34px rgba(53,92,194,.13);transform:translateX(-2px)}
.dark .back-link{background:rgba(23,32,51,.78);border-color:#263246;color:#d8deea}.dark .back-link:hover{color:#fff;border-color:rgba(99,134,255,.48);background:#172033}

.register-panel{justify-content:flex-start}.register-form-shell{padding-top:30px}.register-form label{margin-bottom:1.05rem}.register-form .input-wrap{height:44px}.agreement-row{display:flex!important;align-items:flex-start;gap:10px;margin:0 0 1.35rem!important;color:var(--secondary-text-color);font-size:.88rem;line-height:1.6}.agreement-row>span{display:inline!important;margin:0!important;font-size:.88rem!important;font-weight:400!important;color:var(--secondary-text-color)!important}.agreement-row input{width:16px;height:16px;margin-top:3px;accent-color:var(--theme-color);flex:0 0 auto}.agreement-row a{color:var(--theme-color);text-decoration:none;font-weight:600}.register-form-shell .auth-header{margin-bottom:1.5rem}.register-form-shell .divider{margin:1.15rem 0}.register-form-shell h2{font-size:1.75rem}.register-form-shell .subtitle{margin-bottom:1.2rem}.register-form .primary-btn{margin-top:.1rem}

.auth-notice {
  display: none;
  margin: 0 0 14px;
  padding: 11px 13px;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.5;
  background: rgba(15, 23, 42, 0.06);
  color: #334155;
}
.auth-notice.loading,
.auth-notice.success,
.auth-notice.error { display: block; }
.auth-notice.success {
  background: rgba(22, 163, 74, 0.12);
  color: #166534;
}
.auth-notice.error {
  background: rgba(220, 38, 38, 0.11);
  color: #b91c1c;
}
.primary-btn:disabled {
  cursor: wait;
  opacity: 0.72;
}

.toast-stack {
  position: fixed;
  top: 24px;
  left: 50%;
  z-index: 9999;
  display: grid;
  width: min(420px, calc(100vw - 32px));
  gap: 10px;
  transform: translateX(-50%);
  pointer-events: none;
}

.toast-item {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  padding: 12px 16px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  color: #172033;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.16);
  font-size: 14px;
  line-height: 1.45;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast-item.show {
  opacity: 1;
  transform: translateY(0);
}

.toast-icon {
  position: relative;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  border-radius: 999px;
}

.toast-item.success .toast-icon {
  background: #21c179;
}

.toast-item.success .toast-icon::after {
  position: absolute;
  top: 5px;
  left: 8px;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  content: "";
  transform: rotate(45deg);
}

.toast-item.error .toast-icon {
  background: #ef4444;
}

.toast-item.error .toast-icon::before,
.toast-item.error .toast-icon::after {
  position: absolute;
  top: 10px;
  left: 6px;
  width: 10px;
  height: 2px;
  border-radius: 999px;
  background: #fff;
  content: "";
}

.toast-item.error .toast-icon::before {
  transform: rotate(45deg);
}

.toast-item.error .toast-icon::after {
  transform: rotate(-45deg);
}

.toast-item.loading .toast-icon {
  border: 2px solid rgba(33, 193, 121, 0.25);
  border-top-color: #21c179;
  animation: toast-spin 800ms linear infinite;
}

.toast-text {
  min-width: 0;
  overflow-wrap: anywhere;
}

.primary-btn:disabled {
  cursor: wait;
  opacity: 0.72;
}

@keyframes toast-spin {
  to { transform: rotate(360deg); }
}