/* 认证页面样式 */

/* 基础样式 */
.auth-body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow-x: hidden;
}

/* 导航栏透明样式 */
.navbar-transparent {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar-transparent .nav-logo a {
    color: white;
}

.navbar-transparent .btn-outline {
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.navbar-transparent .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

/* 主体容器 */
.auth-main {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 1200px;
    width: 100%;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    min-height: 600px;
}

/* 左侧装饰区域 */
.auth-decoration {
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    color: white;
    overflow: hidden;
}

.decoration-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 300px;
}

.decoration-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.decoration-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.decoration-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    line-height: 1.5;
}

.decoration-features {
    text-align: left;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.feature-item i {
    margin-right: 0.75rem;
    color: #4ade80;
    font-size: 1.1rem;
}

/* 背景装饰 */
.decoration-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.bg-shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 100px;
    height: 100px;
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    bottom: 20%;
    left: -20%;
    animation-delay: 2s;
}

.shape-3 {
    width: 80px;
    height: 80px;
    top: 60%;
    right: -10%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

/* 右侧表单区域 */
.auth-form-container {
    padding: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-form-wrapper {
    width: 100%;
    max-width: 400px;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-title {
    font-size: 2rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    color: #6b7280;
    font-size: 0.95rem;
}

/* 表单样式 */
.auth-form {
    width: 100%;
}

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

.form-label {
    display: flex;
    align-items: center;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.form-label i {
    margin-right: 0.5rem;
    color: #6366f1;
    width: 16px;
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    background: #fafafa;
}

.form-input:focus {
    outline: none;
    border-color: #6366f1;
    background: white;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-input.error {
    border-color: #ef4444;
    background: #fef2f2;
}

.form-input.success {
    border-color: #10b981;
    background: #f0fdf4;
}

.form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 0.95rem;
    background: #fafafa;
    cursor: pointer;
    transition: all 0.3s ease;
}

.form-select:focus {
    outline: none;
    border-color: #6366f1;
    background: white;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.input-hint {
    font-size: 0.8rem;
    color: #6b7280;
    margin-top: 0.25rem;
}

/* 密码输入框 */
.password-input {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #6b7280;
    cursor: pointer;
    padding: 0.25rem;
    transition: color 0.3s ease;
}

.password-toggle:hover {
    color: #374151;
}

/* 密码强度指示器 */
.password-strength {
    margin-top: 0.5rem;
}

.strength-bar {
    height: 4px;
    background: #e5e7eb;
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 0.25rem;
}

.strength-fill {
    height: 100%;
    width: 0%;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.strength-fill.weak {
    width: 33%;
    background: #ef4444;
}

.strength-fill.medium {
    width: 66%;
    background: #f59e0b;
}

.strength-fill.strong {
    width: 100%;
    background: #10b981;
}

.strength-text {
    font-size: 0.8rem;
    color: #6b7280;
}

/* 验证码输入 */
.verification-input {
    display: flex;
    gap: 0.75rem;
}

.verification-input .form-input {
    flex: 1;
}

.verification-btn {
    padding: 0.875rem 1.5rem;
    background: #6366f1;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.verification-btn:hover {
    background: #5855eb;
}

.verification-btn:disabled {
    background: #9ca3af;
    cursor: not-allowed;
}

/* 登录方式切换 */
.login-tabs {
    display: flex;
    background: #f3f4f6;
    border-radius: 8px;
    padding: 0.25rem;
    margin-bottom: 1.5rem;
}

.login-tab {
    flex: 1;
    padding: 0.75rem;
    text-align: center;
    background: none;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    color: #6b7280;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-tab.active {
    background: white;
    color: #6366f1;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* 步骤指示器 */
.step-indicator {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    position: relative;
}

.step-indicator::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    height: 2px;
    background: #e5e7eb;
    z-index: 1;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #e5e7eb;
    color: #6b7280;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.step.active .step-number {
    background: #6366f1;
    color: white;
}

.step.completed .step-number {
    background: #10b981;
    color: white;
}

.step-label {
    font-size: 0.8rem;
    color: #6b7280;
    text-align: center;
}

.step.active .step-label {
    color: #6366f1;
    font-weight: 600;
}

/* 步骤内容 */
.step-content {
    display: none;
}

.step-content.active {
    display: block;
    animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 步骤操作按钮 */
.step-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.step-actions .btn {
    flex: 1;
}

/* 按钮样式 */
.btn {
    padding: 0.875rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: #6366f1;
    color: white;
}

.btn-primary:hover {
    background: #5855eb;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: #f3f4f6;
    color: #374151;
}

.btn-secondary:hover {
    background: #e5e7eb;
}

.btn-full {
    width: 100%;
}

.btn-register {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

/* 复选框样式 */
.checkbox-label {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    line-height: 1.5;
}

.checkbox-input {
    display: none;
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border: 2px solid #d1d5db;
    border-radius: 4px;
    margin-right: 0.75rem;
    margin-top: 0.125rem;
    position: relative;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.checkbox-input:checked + .checkbox-custom {
    background: #6366f1;
    border-color: #6366f1;
}

.checkbox-input:checked + .checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.agreement-section {
    margin: 1.5rem 0;
    padding: 1rem;
    background: #f9fafb;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

.agreement-link {
    color: #6366f1;
    text-decoration: none;
}

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

/* 第三方登录 */
.social-login {
    margin-top: 1.5rem;
}

.social-title {
    text-align: center;
    color: #6b7280;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    position: relative;
}

.social-title::before,
.social-title::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 30%;
    height: 1px;
    background: #e5e7eb;
}

.social-title::before {
    left: 0;
}

.social-title::after {
    right: 0;
}

.social-buttons {
    display: flex;
    gap: 0.75rem;
}

.social-btn {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    background: white;
    color: #374151;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.social-btn:hover {
    border-color: #6366f1;
    color: #6366f1;
    transform: translateY(-1px);
}

.social-btn.wechat:hover {
    border-color: #07c160;
    color: #07c160;
}

.social-btn.qq:hover {
    border-color: #1296db;
    color: #1296db;
}

.social-btn.weibo:hover {
    border-color: #e6162d;
    color: #e6162d;
}

/* 记住我和忘记密码 */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 1rem 0;
    font-size: 0.9rem;
}

.forgot-password {
    color: #6366f1;
    text-decoration: none;
}

.forgot-password:hover {
    text-decoration: underline;
}

/* 页脚链接 */
.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e5e7eb;
    font-size: 0.9rem;
    color: #6b7280;
}

.login-link,
.register-link {
    color: #6366f1;
    text-decoration: none;
    font-weight: 600;
}

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

/* 加载遮罩 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-overlay.show {
    display: flex;
}

.loading-spinner {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f4f6;
    border-top: 4px solid #6366f1;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 模态框样式 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 1rem;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 12px;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    animation: modalSlideIn 0.3s ease;
}

.modal-large {
    max-width: 700px;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    padding: 1.5rem 1.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    color: #1f2937;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #6b7280;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: #f3f4f6;
    color: #374151;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 0 1.5rem 1.5rem;
    text-align: right;
}

/* 成功模态框 */
.success-icon {
    font-size: 4rem;
    color: #10b981;
    margin-bottom: 1rem;
}

.success-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}

/* 服务协议内容 */
.terms-content {
    line-height: 1.6;
    color: #374151;
}

.terms-content h4 {
    color: #1f2937;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.terms-content p {
    margin-bottom: 1rem;
}

/* 忘记密码模态框 */
.forgot-form {
    margin-top: 1rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .auth-container {
        grid-template-columns: 1fr;
        margin: 1rem;
        min-height: auto;
    }
    
    .auth-decoration {
        padding: 2rem;
        min-height: 200px;
    }
    
    .decoration-title {
        font-size: 2rem;
    }
    
    .auth-form-container {
        padding: 2rem 1.5rem;
    }
    
    .step-indicator {
        margin-bottom: 1.5rem;
    }
    
    .step-label {
        display: none;
    }
    
    .verification-input {
        flex-direction: column;
    }
    
    .verification-btn {
        margin-top: 0.5rem;
    }
    
    .step-actions {
        flex-direction: column;
    }
    
    .social-buttons {
        flex-direction: column;
    }
    
    .form-options {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .auth-main {
        padding: 1rem 0.5rem;
    }
    
    .auth-form-container {
        padding: 1.5rem 1rem;
    }
    
    .auth-title {
        font-size: 1.5rem;
    }
    
    .decoration-content {
        max-width: 250px;
    }
    
    .modal-content {
        margin: 0.5rem;
    }
}

/* 错误提示样式 */
.error-message {
    color: #ef4444;
    font-size: 0.8rem;
    margin-top: 0.25rem;
    display: none;
}

.error-message.show {
    display: block;
}

/* 成功提示样式 */
.success-message {
    color: #10b981;
    font-size: 0.8rem;
    margin-top: 0.25rem;
    display: none;
}

.success-message.show {
    display: block;
}

/* Toast 提示样式 */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    border-radius: 8px;
    padding: 1rem 1.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #6366f1;
    z-index: 10000;
    transform: translateX(400px);
    transition: transform 0.3s ease;
    max-width: 300px;
}

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

.toast.success {
    border-left-color: #10b981;
}

.toast.error {
    border-left-color: #ef4444;
}

.toast.warning {
    border-left-color: #f59e0b;
}

/* 表单验证状态 */
.form-group.has-error .form-input {
    border-color: #ef4444;
    background: #fef2f2;
}

.form-group.has-success .form-input {
    border-color: #10b981;
    background: #f0fdf4;
}

/* 动画效果 */
.fade-in {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.slide-up {
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 加载状态 */
.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    color: white;
}

/* 输入框聚焦效果 */
.form-input:focus {
    transform: translateY(-1px);
}

/* 按钮点击效果 */
.btn:active {
    transform: translateY(1px);
}

/* 卡片悬停效果 */