/* ... 原有CSS样式保持不变 ... */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Microsoft YaHei', Arial, sans-serif;
            background: linear-gradient(135deg, #FFE5B4 0%, #FFD59E 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .account-center-form {
            width: 100%;
            max-width: 400px;
        }

        .form-wrap {
            background: white;
            border-radius: 15px;
            box-shadow: 0 15px 35px rgba(255, 140, 0, 0.2);
            padding: 40px 30px;
            position: relative;
            overflow: hidden;
        }

        .form-wrap::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, #FF8C00, #FFA500, #FF8C00);
        }

        .form-title {
            text-align: center;
            color: #FF8C00;
            font-size: 28px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .welcome {
            text-align: center;
            color: #666;
            font-size: 14px;
            margin-bottom: 30px;
        }

        .switch-btn {
            display: flex;
            background: #FFF8F0;
            border-radius: 25px;
            padding: 5px;
            margin-bottom: 25px;
        }

        .switch-btn span {
            flex: 1;
            text-align: center;
            padding: 12px;
            cursor: pointer;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .switch-btn span.active {
            background: linear-gradient(90deg, #FF8C00, #FFA500);
            color: white;
            box-shadow: 0 4px 12px rgba(255, 140, 0, 0.3);
        }

        .switch-btn span:not(.active):hover {
            background: #FFE5B4;
        }

        .switch-content {
            display: none;
        }

        .switch-content.show {
            display: block;
        }

        .form-line {
            margin-bottom: 20px;
            position: relative;
        }

        .form-line.no-mb {
            margin-bottom: 0;
        }

        .form-input {
            width: 100%;
            padding: 15px 20px;
            border: 2px solid #FFE5B4;
            border-radius: 10px;
            font-size: 14px;
            transition: all 0.3s ease;
            background: #FFF8F0;
        }

        .form-input:focus {
            outline: none;
            border-color: #FF8C00;
            background: white;
            box-shadow: 0 0 0 3px rgba(255, 140, 0, 0.1);
        }

        .form-input::placeholder {
            color: #CCC;
        }

        .with-code-btn {
            display: flex;
            gap: 10px;
        }

        .with-code-btn .form-input {
            flex: 1;
        }

        .img-code {
            width: 120px;
            height: 45px;
            border-radius: 8px;
            cursor: pointer;
            border: 2px solid #FFE5B4;
        }

        .error {
            display: block;
            color: #ff4757;
            font-size: 12px;
            margin-top: 5px;
            padding-left: 5px;
        }

        .error.hide {
            display: none;
        }

        .to-reset {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
        }

        .remember-me {
            display: flex;
            align-items: center;
            cursor: pointer;
        }

        .remember-me input[type="checkbox"] {
            display: none;
        }

        .remember-me span {
            width: 18px;
            height: 18px;
            border: 2px solid #FF8C00;
            border-radius: 4px;
            margin-right: 8px;
            position: relative;
            display: inline-block;
        }

        .remember-me input[type="checkbox"]:checked + span::after {
            content: '';
            position: absolute;
            left: 4px;
            top: 0;
            width: 6px;
            height: 10px;
            border: solid #FF8C00;
            border-width: 0 2px 2px 0;
            transform: rotate(45deg);
        }

        .remember-me a {
            color: #666;
            text-decoration: none;
            font-size: 14px;
        }

        .remember-me a:hover {
            color: #FF8C00;
        }

        .to-reset a {
            color: #FF8C00;
            text-decoration: none;
            font-size: 14px;
        }

        .to-reset a:hover {
            text-decoration: underline;
        }

        .btn-form {
            width: 100%;
            padding: 15px;
            background: linear-gradient(90deg, #FF8C00, #FFA500);
            border: none;
            border-radius: 10px;
            color: white;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(255, 140, 0, 0.3);
        }

        .btn-form:hover {
            background: linear-gradient(90deg, #FF7700, #FF9500);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 140, 0, 0.4);
        }

        .btn-form:active {
            transform: translateY(0);
        }

        .btn-form:disabled {
            background: #FFD59E;
            cursor: not-allowed;
            transform: none;
        }

        .to-register {
            text-align: center;
            margin-top: 20px;
            color: #666;
            font-size: 14px;
        }

        .to-register a {
            color: #FF8C00;
            text-decoration: none;
            font-weight: 600;
        }

        .to-register a:hover {
            text-decoration: underline;
        }

        .loading {
            display: none;
            text-align: center;
            color: #FF8C00;
            font-size: 14px;
            margin-top: 10px;
        }

        @media (max-width: 480px) {
            .form-wrap {
                padding: 30px 20px;
            }
            
            .with-code-btn {
                flex-direction: column;
            }
            
            .img-code {
                width: 100%;
                margin-bottom: 10px;
            }
        }