/* ══════════════════════════════════════════
   login.css — 统一登录组件样式
   仅用于登录/注册/密码修改表单
   ══════════════════════════════════════════ */

/* ── Login Page Layout ── */
.login-page{min-height:100vh;display:flex;flex-direction:column;background:var(--bg-deep)}
.login-bg{position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(ellipse 80% 60% at 50% 0%,rgba(99,102,241,0.08) 0%,transparent 70%),
             radial-gradient(ellipse 60% 50% at 80% 80%,rgba(0,245,255,0.04) 0%,transparent 60%);}
.login-bg-grid{position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(99,102,241,0.03) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(99,102,241,0.03) 1px,transparent 1px);
  background-size:60px 60px;}
.login-container{flex:1;display:flex;align-items:center;justify-content:center;padding:40px 20px;position:relative;z-index:1}
.login-card{width:100%;max-width:420px;background:var(--bg-glass);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  border:1px solid var(--border);border-radius:20px;padding:36px 32px 32px;
  box-shadow:0 0 0 1px rgba(99,102,241,0.04),0 8px 48px rgba(0,0,0,0.5);
  animation:card-in .5s var(--ease-out)}
@keyframes card-in{from{opacity:0;transform:translateY(24px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}

.login-brand{text-align:center;margin-bottom:28px}
.login-brand .lb-logo{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;
  background:var(--gradient-primary);border-radius:14px;margin-bottom:14px;
  box-shadow:0 0 28px rgba(99,102,241,0.35);font-family:var(--font-display);
  font-size:22px;font-weight:900;color:#fff}
.login-brand h1{font-size:22px;font-weight:700;letter-spacing:-.3px;color:var(--text-high);margin-bottom:4px}
.login-brand p{font-size:13px;color:var(--text-muted)}

/* ── Tabs ── */
.login-tabs{display:flex;gap:4px;background:rgba(11,17,32,0.6);border-radius:10px;padding:4px;margin-bottom:24px}
.login-tab{flex:1;padding:9px 12px;border:none;border-radius:8px;background:transparent;
  color:var(--text-muted);font-size:13px;font-weight:500;cursor:pointer;
  transition:all .25s;font-family:var(--font-cn)}
.login-tab:hover{color:var(--text-dim)}
.login-tab.active{background:rgba(99,102,241,0.12);color:var(--cyan);box-shadow:0 0 12px rgba(99,102,241,0.1)}

/* ── Form Fields ── */
.lf{margin-bottom:16px}
.lf-label{display:block;font-size:12px;font-weight:500;color:var(--text-muted);margin-bottom:6px;letter-spacing:.3px}
.lf-row{display:flex;gap:8px}
.lf-wrap{position:relative;flex:1}
.lf-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:14px;pointer-events:none}
.lf-in{width:100%;padding:12px 14px 12px 42px;background:rgba(11,17,32,0.5);border:1.5px solid var(--border);
  border-radius:var(--radius-sm);color:var(--text);font-size:14px;transition:all .25s;font-family:var(--font-cn)}
.lf-in::placeholder{color:var(--text-muted)}
.lf-in:focus{outline:none;border-color:rgba(99,102,241,0.4);box-shadow:0 0 0 3px rgba(99,102,241,0.1)}
.lf-in:disabled{opacity:0.4;cursor:not-allowed}

.lf-btn-send{padding:12px 18px;background:rgba(99,102,241,0.08);border:1.5px solid rgba(99,102,241,0.2);
  border-radius:var(--radius-sm);color:var(--cyan);font-size:13px;font-weight:600;cursor:pointer;
  white-space:nowrap;transition:all .25s;font-family:var(--font-cn);min-width:100px;text-align:center}
.lf-btn-send:hover{background:rgba(99,102,241,0.15);border-color:rgba(99,102,241,0.4)}
.lf-btn-send:disabled{opacity:0.3;cursor:not-allowed}
.lf-btn-send.countdown{color:var(--text-muted)}

.lf-pwd-row{display:flex;align-items:stretch}
.lf-pwd-row .lf-in{flex:1;border-top-right-radius:0;border-bottom-right-radius:0}
.lf-pwd-eye{width:40px;border:1.5px solid var(--border);border-left:none;background:rgba(11,17,32,0.6);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-muted);cursor:pointer;
  font-size:16px;display:flex;align-items:center;justify-content:center;transition:color .15s}
.lf-pwd-eye:hover{color:var(--text)}

/* ── Buttons ── */
.lf-btn-primary{width:100%;padding:13px;background:var(--gradient-primary);border:none;border-radius:var(--radius-sm);
  color:#fff;font-size:15px;font-weight:600;cursor:pointer;position:relative;overflow:hidden;
  transition:all .25s;font-family:var(--font-cn);box-shadow:0 4px 20px rgba(99,102,241,0.25)}
.lf-btn-primary:hover{box-shadow:0 6px 28px rgba(99,102,241,0.4);transform:translateY(-1px)}
.lf-btn-primary:active{transform:scale(.98)}
.lf-btn-primary:disabled{opacity:0.4;cursor:not-allowed;transform:none}
.lf-btn-primary .lf-spinner{display:none;width:20px;height:20px;border:2px solid rgba(255,255,255,.2);
  border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;margin:0 auto}
.lf-btn-primary.loading .lf-btn-text{visibility:hidden}
.lf-btn-primary.loading .lf-spinner{display:block}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── Messages ── */
.lf-msg{font-size:12px;margin-top:8px;padding:9px 12px;border-radius:8px;display:none;align-items:center;gap:8px}
.lf-msg.error{display:flex;background:rgba(244,63,94,0.08);border:1px solid rgba(244,63,94,0.2);color:var(--rose)}
.lf-msg.success{display:flex;background:rgba(0,255,159,0.08);border:1px solid rgba(0,255,159,0.2);color:var(--green)}

/* ── Captcha ── */
.lf-captcha{margin:18px 0}
.lf-captcha-hint{font-size:11px;color:var(--text-muted);margin:-8px 0 16px;text-align:center}

/* ── Password Hint ── */
.lf-pwd-hint{font-size:11px;color:var(--text-muted);margin-top:6px;line-height:1.4}
.lf-toggle{margin-top:14px;text-align:center}
.lf-toggle a,.lf-toggle button{background:none;border:none;color:var(--text-muted);font-size:12px;cursor:pointer;transition:color .25s;font-family:var(--font-cn);text-decoration:none}
.lf-toggle a:hover,.lf-toggle button:hover{color:var(--cyan)}

/* ── Divider ── */
.lf-divider{display:flex;align-items:center;margin:22px 0;gap:12px}
.lf-divider::before,.lf-divider::after{content:'';flex:1;height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent)}
.lf-divider span{color:var(--text-muted);font-size:11px;text-transform:uppercase;letter-spacing:1px}

/* ── Social Button ── */
.lf-btn-social{width:100%;padding:12px;background:rgba(99,102,241,0.06);border:1.5px solid rgba(99,102,241,0.15);
  border-radius:var(--radius-sm);color:var(--text-dim);font-size:14px;font-weight:500;cursor:pointer;
  display:flex;align-items:center;justify-content:center;gap:8px;transition:all .25s;font-family:var(--font-cn)}
.lf-btn-social:hover{background:rgba(99,102,241,0.12);color:var(--cyan)}

/* ── Security Notice ── */
.lf-security-notice{display:flex;gap:10px;margin-top:18px;padding:12px 14px;background:rgba(99,102,241,0.04);border:1px solid rgba(99,102,241,0.08);border-radius:10px}
.lsn-icon{font-size:18px;flex-shrink:0;margin-top:1px}
.lsn-content{flex:1}
.lsn-title{font-size:12px;font-weight:600;color:var(--text-dim);margin-bottom:2px}
.lsn-text{font-size:11px;color:var(--text-muted);line-height:1.5}

/* ── Toast ── */
.toast-wrap{position:fixed;top:24px;right:24px;z-index:999;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast-el{padding:12px 20px;border-radius:10px;background:var(--bg-glass);backdrop-filter:blur(12px);
  border:1px solid var(--border);color:var(--text);font-size:13px;
  box-shadow:0 8px 32px rgba(0,0,0,0.5);display:flex;align-items:center;gap:10px;
  animation:slide-in .3s var(--ease-out);pointer-events:auto;max-width:360px}
.toast-el.success{border-color:rgba(0,255,159,0.3)}
.toast-el.error{border-color:rgba(244,63,94,0.3)}
.toast-el.leave{animation:slide-out .25s ease-in forwards}
@keyframes slide-in{from{opacity:0;transform:translateX(60px)}to{opacity:1;transform:translateX(0)}}
@keyframes slide-out{from{opacity:1;transform:translateX(0)}to{opacity:0;transform:translateX(60px)}}

/* ── Footer ── */
.login-footer{text-align:center;padding:20px;color:var(--text-muted);font-size:11px;position:relative;z-index:1;border-top:1px solid rgba(99,102,241,0.06)}

/* ── Responsive ── */
@media(max-width:480px){
  .login-card{padding:28px 20px 24px;border-radius:16px}
  .toast-wrap{left:16px;right:16px;top:16px}
  .toast-el{max-width:100%}
  .lf-row{flex-direction:column;gap:8px}
  .lf-btn-send{width:100%}
}