body{background:var(--bg-primary);user-select:none;justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex;position:relative;overflow-x:hidden}input,textarea{user-select:text}*{-webkit-user-drag:none}input,textarea{-webkit-user-drag:auto}body:before{content:"";z-index:-2;background-image:url(https://bing.biturl.top/?resolution=UHD&format=image&index=0&mkt=zh-CN);background-position:50%;background-repeat:no-repeat;background-size:cover;position:fixed;top:0;bottom:0;left:0;right:0}body:after{content:"";background:var(--bg-overlay);z-index:-1;transition:opacity var(--transition-fast), var(--transition-color);position:fixed;top:0;bottom:0;left:0;right:0}[data-theme=light] body:after{opacity:0}.login-container{background:var(--bg-glass);width:100%;max-width:480px;box-shadow:0 25px 50px -12px var(--shadow-color);backdrop-filter:blur(20px)saturate(160%);border:1px solid var(--glass-border);border-radius:28px;padding:40px;animation:.8s cubic-bezier(.16,1,.3,1) slideIn;position:relative}@keyframes slideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.header{text-align:center;margin-bottom:30px}.app-icon{object-fit:contain;background:0 0;border-radius:16px;width:72px;height:72px;margin-bottom:15px}.header h2{color:var(--text-main);letter-spacing:-.5px;margin-bottom:8px;font-size:26px;font-weight:800}.header p{color:var(--text-muted);font-size:15px;font-weight:600}.form-group{margin-bottom:20px;position:relative}.input-wrapper{align-items:center;display:flex;position:relative}.input-icon{color:var(--text-main);pointer-events:none;z-index:10;width:20px;height:20px;position:absolute;top:50%;left:16px;transform:translateY(-50%)}.input-icon path,.input-icon circle,.input-icon rect{stroke:currentColor;stroke-width:2.5px}input{background:var(--input-bg,rgba(255,255,255,.5));border:2px solid var(--input-border);width:100%;color:var(--text-main);transition:var(--transition-fast);user-select:text;border-radius:12px;outline:none;padding:14px 48px;font-size:15px;font-weight:600}input::-ms-reveal{display:none!important}input::-ms-clear{display:none!important}input::-webkit-contacts-auto-fill-button{display:none!important}input::-webkit-credentials-auto-fill-button{display:none!important}input[type=password]::-webkit-password-reveal{display:none!important}input[type=password]::-webkit-caps-lock-indicator{display:none!important}input::placeholder{color:var(--text-muted);opacity:.8;font-weight:500}input:focus{background:var(--input-bg,rgba(255,255,255,.5));border-color:var(--primary-color);box-shadow:0 0 0 3px var(--accent-light)}input:focus+.input-icon{color:var(--primary-color)}.toggle-password{cursor:pointer;color:var(--text-muted);background:0 0;border:none;justify-content:center;align-items:center;display:flex;position:absolute;top:50%;right:16px;transform:translateY(-50%)}.toggle-password path,.toggle-password circle{stroke:currentColor;stroke-width:2.5px}.toggle-password:hover{color:var(--text-main)}.submit-btn{background:var(--primary-color);color:#fff;cursor:pointer;width:100%;transition:var(--transition-color);box-shadow:var(--shadow-accent);border:none;border-radius:12px;justify-content:center;align-items:center;gap:10px;margin-top:10px;padding:14px;font-size:16px;font-weight:700;display:flex}.submit-btn:hover{background:var(--primary-hover)}.submit-btn:active{transform:scale(.98)}.submit-btn:disabled{background:var(--text-muted);cursor:not-allowed;opacity:.7}.spinner{border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;width:20px;height:20px;animation:.8s linear infinite spin;display:none}@keyframes spin{to{transform:rotate(360deg)}}.error-message{color:var(--error-color);align-items:center;gap:6px;margin-top:8px;font-size:13px;font-weight:600;animation:.3s fadeIn;display:none}.error-message.visible{display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.form-group.has-error input{background:rgba(239,71,111,.05);border-color:var(--error-color)!important}.form-group.has-error .input-icon{color:var(--error-color)!important}@keyframes shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-6px)}40%,80%{transform:translate(6px)}}.shake{animation:.4s cubic-bezier(.36,.07,.19,.97) both shake}.switch-link{text-align:center;color:var(--text-muted);margin-top:24px;font-size:14px}.switch-link a{color:var(--primary-color);cursor:pointer;margin-left:5px;font-weight:600;text-decoration:none}.switch-link a:hover{text-decoration:underline}.fade-out{opacity:0;transition:opacity .2s ease, var(--transition-color)}.fade-in{opacity:1;transition:opacity .2s ease, var(--transition-color)}.theme-toggle{cursor:pointer;color:var(--text-muted);transition:var(--transition-fast);background:0 0;border:none;border-radius:50%;padding:10px;position:absolute;top:20px;right:20px}.theme-toggle:hover{background:var(--input-bg);color:var(--text-main)}@media (max-width:480px){.login-container{border-radius:0;min-height:100vh;padding:40px 25px}.theme-toggle{top:15px;right:15px}}.captcha-overlay{z-index:1000;backdrop-filter:blur(4px);overscroll-behavior:contain;background:rgba(0,0,0,.55);outline:none;justify-content:center;align-items:center;display:none;position:fixed;top:0;bottom:0;left:0;right:0}.captcha-overlay--visible{display:flex}