/* 登录页面样式 - 专业交易平台风格 */

/* 整体布局 */
body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #001529 0%, #002140 50%, #001529 100%);
    overflow-x: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

/* 背景图案 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(120, 179, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(120, 179, 255, 0.05) 0%, transparent 50%);
    z-index: 1;
}

.login-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    position: relative;
    z-index: 10;
}

.login-box {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-radius: 12px;
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.2),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    padding: 3rem 2.5rem;
    width: 100%;
    max-width: 420px;
    position: relative;
    z-index: 10;
    transition: all 0.3s ease;
}

/* Logo区域 */
.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo {
    display: inline-block;
    background: #fff;
    border-radius: 8px;
    padding: 0.5rem 1.5rem 0.5rem 1.2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    border: 2px solid #e0e0e0;
}

.logo h1 {
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #1890ff, #722ed1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.logo h1::before {
    content: none;
}

.logo p {
    color: #666666;
    font-size: 0.95rem;
    margin: 0;
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* 表单区域 */
.login-form-container h2 {
    text-align: center;
    color: #1f2937;
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 2rem;
    position: relative;
}

.login-form-container h2::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: linear-gradient(135deg, #1890ff, #722ed1);
    border-radius: 2px;
}

.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: #333333;
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    padding-left: 3rem;
    border: 2px solid #e8e8e8;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #fafafa;
    box-sizing: border-box;
    font-family: inherit;
}

.form-group input:focus {
    outline: none;
    border-color: #1890ff;
    background: white;
    box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.1);
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.1rem;
    color: #999999;
    margin-top: 0.75rem;
}

.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #999999;
    cursor: pointer;
    font-size: 1.1rem;
    margin-top: 0.75rem;
    transition: color 0.3s ease;
    padding: 0.25rem;
}

.password-toggle:hover {
    color: #1890ff;
}

/* 表单选项 */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.remember-me {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.9rem;
    color: #666666;
}

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

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid #d9d9d9;
    border-radius: 4px;
    margin-right: 0.5rem;
    position: relative;
    transition: all 0.3s ease;
}

.remember-me input[type="checkbox"]:checked + .checkmark {
    background: #1890ff;
    border-color: #1890ff;
}

.remember-me input[type="checkbox"]:checked + .checkmark:after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 0.8rem;
    font-weight: bold;
}

.forgot-password {
    color: #1890ff;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.forgot-password:hover {
    color: #40a9ff;
    text-decoration: underline;
}

/* 按钮样式 */
.login-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #1890ff, #722ed1);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.5px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(24, 144, 255, 0.3);
}

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

.login-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-loading {
    display: none;
}

.login-btn.loading .btn-text {
    display: none;
}

.login-btn.loading .btn-loading {
    display: inline;
}

/* 分隔线 */
.divider {
    text-align: center;
    margin: 2rem 0;
    position: relative;
}

.divider:before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #e8e8e8;
}

.divider span {
    background: rgba(255, 255, 255, 0.98);
    padding: 0 1rem;
    color: #999999;
    font-size: 0.9rem;
}

/* 其他操作 */
.other-actions {
    text-align: center;
}

.demo-login-btn {
    width: 100%;
    padding: 0.875rem;
    background: #f8f9fa;
    color: #1890ff;
    border: 2px solid #e8e8e8;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 1.5rem;
}

.demo-login-btn:hover {
    background: #1890ff;
    color: white;
    border-color: #1890ff;
}

.register-link {
    color: #666666;
    font-size: 0.9rem;
    margin: 0;
}

.register-link a {
    color: #1890ff;
    text-decoration: none;
    font-weight: 500;
}

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

/* 背景装饰 */
.background-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 2;
}

.floating-shapes {
    position: relative;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(120, 179, 255, 0.08);
    animation: gentleFloat 8s ease-in-out infinite;
}

.shape-1 {
    width: 60px;
    height: 60px;
    top: 15%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 80px;
    height: 80px;
    top: 25%;
    right: 15%;
    animation-delay: 1.5s;
}

.shape-3 {
    width: 45px;
    height: 45px;
    bottom: 35%;
    left: 20%;
    animation-delay: 3s;
}

.shape-4 {
    width: 70px;
    height: 70px;
    bottom: 15%;
    right: 25%;
    animation-delay: 4.5s;
}

.shape-5 {
    width: 55px;
    height: 55px;
    top: 60%;
    left: 8%;
    animation-delay: 6s;
}

@keyframes gentleFloat {
    0%, 100% {
        transform: translateY(0px);
        opacity: 0.4;
    }
    25% {
        transform: translateY(-6px);
        opacity: 0.6;
    }
    50% {
        transform: translateY(-10px);
        opacity: 0.7;
    }
    75% {
        transform: translateY(-6px);
        opacity: 0.6;
    }
}

/* 提示信息 */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #1f2937;
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 1000;
    font-weight: 500;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    background: #52c41a;
}

.toast.error {
    background: #ff4d4f;
}

.toast.warning {
    background: #faad14;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.modal-content {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    width: 100%;
    max-width: 420px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e8e8e8;
}

.modal-header h3 {
    color: #1f2937;
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #999999;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: #f5f5f5;
    color: #666666;
}

.register-form .form-group {
    margin-bottom: 1.5rem;
}

.register-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #52c41a, #389e0d);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.register-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(82, 196, 26, 0.3);
}

.agreement {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    font-size: 0.9rem;
    color: #666666;
    line-height: 1.5;
}

.agreement .checkmark {
    margin-top: 0.1rem;
    flex-shrink: 0;
}

.agreement a {
    color: #1890ff;
    text-decoration: none;
}

.agreement a:hover {
    text-decoration: underline;
}

/* 演示说明 */
.demo-note {
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    border-left: 4px solid #1890ff;
    font-size: 0.85rem;
    color: #333333;
    line-height: 1.5;
}

.demo-note strong {
    color: #1890ff;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .login-container {
        padding: 1rem;
    }
    
    .login-box {
        padding: 2rem 1.5rem;
        margin: 1rem 0;
    }
    
    .logo h1 {
        font-size: 1.8rem;
    }
    
    .login-form-container h2 {
        font-size: 1.4rem;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .modal {
        padding: 1rem;
    }
    
    .modal-content {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .login-box {
        padding: 1.5rem 1rem;
    }
    
    .logo h1 {
        font-size: 1.6rem;
    }
    
    .form-group input {
        padding: 0.75rem 0.875rem;
        padding-left: 2.5rem;
    }
    
    .input-icon {
        left: 0.75rem;
        font-size: 1rem;
    }
    
    .password-toggle {
        right: 0.75rem;
        font-size: 1rem;
    }
    
    .shape {
        display: none;
    }
}

/* 登录页面ICP备案样式 */
.icp-footer {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 15px 0;
    text-align: center;
    margin-top: auto;
    z-index: 10;
    position: relative;
}

.icp-footer a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 12px;
    transition: color 0.3s ease;
}

.icp-footer a:hover {
    color: #1890ff;
}

/* 响应式ICP备案 */
@media (max-width: 768px) {
    .icp-footer {
        padding: 10px 0;
    }
    
    .icp-footer a {
        font-size: 11px;
    }
}