*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}:root{--bg-root:#08090d;--bg-surface:#0e1018;--bg-card:#131620;--bg-card-hover:#191d2a;--bg-input:#0c0e14;--border:#1e2130;--border-light:#262a3a;--text-1:#f0f1f6;--text-2:#a0a4b8;--text-3:#5e6278;--text-4:#3d4058;--accent:#7c6bff;--accent-hover:#6a5ae5;--accent-soft:rgba(124,107,255,.12);--accent-glow:rgba(124,107,255,.25);--danger:#f87171;--danger-soft:rgba(248,113,113,.12);--success:#34d399;--warning:#fbbf24;--radius:14px;--radius-sm:10px;--radius-xs:7px;--transition:.25s cubic-bezier(.4,0,.2,1);--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}html{height:100%}body{font-family:var(--font-sans);background:var(--bg-root);color:var(--text-1);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none;transition:color var(--transition)}a:hover{color:var(--accent-hover)}.toast{position:fixed;top:24px;left:50%;transform:translateX(-50%);z-index:9999;padding:10px 24px;border-radius:var(--radius-xs);font-size:14px;font-weight:500;animation:toastIn .3s ease;pointer-events:none}.toast.error{background:var(--danger-soft);color:var(--danger);border:1px solid rgba(248,113,113,.2)}.toast.success{background:rgba(52,211,153,.12);color:var(--success);border:1px solid rgba(52,211,153,.2)}@keyframes toastIn{from{opacity:0;transform:translateX(-50%) translateY(-10px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}.form-group{margin-bottom:18px}.form-label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:6px}.form-input{width:100%;height:46px;padding:0 14px;background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius-xs);font-size:15px;color:var(--text-1);font-family:var(--font-sans);transition:border-color var(--transition);outline:0}.form-input:focus{border-color:var(--accent)}.form-input.error{border-color:var(--danger)}.form-input::placeholder{color:var(--text-4)}.form-error{font-size:12px;color:var(--danger);margin-top:4px;display:none}.form-error.show{display:block}.captcha-row{display:flex;gap:10px;align-items:stretch}.captcha-row .form-input{flex:1}.captcha-img{height:46px;width:auto;min-width:90px;border-radius:var(--radius-xs);border:1.5px solid var(--border);cursor:pointer;transition:border-color var(--transition);background:var(--bg-input)}.captcha-img:hover{border-color:var(--accent)}.auth-btn{width:100%;height:46px;border:0;border-radius:var(--radius-xs);background:var(--accent);color:#fff;font-size:15px;font-weight:600;cursor:pointer;font-family:var(--font-sans);transition:all var(--transition);margin-top:24px}.auth-btn:hover{background:var(--accent-hover);box-shadow:0 6px 22px var(--accent-glow)}.auth-btn:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.auth-btn .spinner{display:inline-block;width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite;vertical-align:middle;margin-right:6px}@keyframes spin{to{transform:rotate(360deg)}}