/**
 * 现代化支付后台登录页面样式 - View7
 * 全新设计，不使用 view4 的任何样式和图片
 */

/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul, ol {
    list-style: none;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶部导航栏 */
.top-navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 70px;
    display: flex;
    align-items: center;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 45px;
    width: auto;
}

.logo-text {
    font-size: 22px;
    font-weight: bold;
    color: #667eea;
}

/* 语言切换器 */
.lang-switcher {
    position: relative;
}

.lang-btn {
    background: rgba(102, 126, 234, 0.1);
    border: 2px solid #667eea;
    color: #667eea;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.lang-btn:hover {
    background: #667eea;
    color: white;
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: white;
    min-width: 120px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border-radius: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    overflow: hidden;
}

.lang-switcher:hover .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: block;
    padding: 12px 20px;
    color: #555;
    font-size: 14px;
    transition: all 0.3s ease;
    border-bottom: 1px solid #f0f0f0;
}

.lang-option:last-child {
    border-bottom: none;
}

.lang-option:hover {
    background: #f8f9ff;
    color: #667eea;
}

.nav-menu {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-item {
    position: relative;
    cursor: pointer;
    padding: 10px 0;
}

.nav-item > a {
    font-size: 15px;
    color: #555;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-item:hover > a {
    color: #667eea;
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 180px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border-radius: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
}

.nav-item:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 12px 20px;
    color: #555;
    font-size: 14px;
    transition: all 0.3s ease;
    border-bottom: 1px solid #f0f0f0;
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-item:hover {
    background: #f8f9ff;
    color: #667eea;
    padding-left: 25px;
}

/* 主内容区 */
.main-content {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 登录卡片容器 */
.login-wrapper {
    width: 100%;
    max-width: 480px;
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: visible;
    animation: slideUp 0.6s ease-out;
    position: relative;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 登录头部 */
.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 40px 30px;
    text-align: center;
    color: white;
}

.login-header h2 {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 10px;
}

.login-header p {
    font-size: 14px;
    opacity: 0.9;
}

/* 卡片语言切换器 */
.card-lang-switcher {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 10;
}

.card-lang-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 4px;
    backdrop-filter: blur(10px);
}

.card-lang-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: white;
    transform: scale(1.05);
}

.card-lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: white;
    min-width: 140px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border-radius: 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    overflow: hidden;
}

.card-lang-switcher:hover .card-lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.card-lang-dropdown .lang-option {
    display: block;
    padding: 10px 16px;
    color: #555;
    font-size: 13px;
    transition: all 0.3s ease;
    border-bottom: 1px solid #f0f0f0;
    text-decoration: none;
}

.card-lang-dropdown .lang-option:last-child {
    border-bottom: none;
}

.card-lang-dropdown .lang-option:hover {
    background: #f8f9ff;
    color: #667eea;
    padding-left: 20px;
}

/* 登录类型选择器 */
.login-type-selector {
    display: flex;
    background: #f8f9fa;
    padding: 5px;
    margin: 30px 30px 0;
    border-radius: 12px;
}

.type-option {
    flex: 1;
    padding: 15px;
    text-align: center;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
    color: #666;
}

.type-option.active {
    background: white;
    color: #667eea;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.2);
}

.type-option:hover:not(.active) {
    background: rgba(102, 126, 234, 0.1);
}

/* 登录表单 */
.login-form {
    padding: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
    font-size: 14px;
}

.input-wrapper {
    position: relative;
}

.form-input {
    width: 100%;
    padding: 14px 45px 14px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.3s ease;
    outline: none;
}

.form-input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
    font-size: 18px;
}

.captcha-wrapper {
    display: flex;
    gap: 10px;
}

.captcha-wrapper .form-input {
    flex: 1;
}

.captcha-img {
    width: 120px;
    height: 48px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.captcha-img:hover {
    border-color: #667eea;
    transform: scale(1.05);
}

/* 记住我和忘记密码 */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    font-size: 13px;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: #666;
}

.remember-me input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: #667eea;
    cursor: pointer;
}

.forgot-password {
    color: #667eea;
    font-weight: 500;
}

.forgot-password:hover {
    color: #764ba2;
    text-decoration: underline;
}

/* 登录按钮 */
.login-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

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

/* 注册链接 */
.register-link {
    text-align: center;
    margin-top: 25px;
    color: #666;
    font-size: 14px;
}

.register-link a {
    color: #667eea;
    font-weight: bold;
    margin-left: 5px;
}

.register-link a:hover {
    color: #764ba2;
    text-decoration: underline;
}

/* 底部信息 */
.footer-info {
    text-align: center;
    padding: 20px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 13px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.9);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
    text-decoration: underline;
}

/* API文档快捷入口 */
.api-doc-quick {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: white;
    padding: 15px 25px;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 999;
}

.api-doc-quick:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.api-doc-quick i {
    font-size: 20px;
    color: #667eea;
}

.api-doc-quick span {
    font-weight: 500;
    color: #555;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .login-wrapper {
        padding: 10px;
    }
    
    .login-header {
        padding: 30px 20px;
    }
    
    .login-header h2 {
        font-size: 24px;
    }
    
    .login-form {
        padding: 20px;
    }
    
    .api-doc-quick {
        bottom: 20px;
        right: 20px;
        padding: 12px 20px;
    }
    
    .footer-info {
        padding: 15px 10px;
    }
    
    .footer-links {
        flex-wrap: wrap;
        gap: 10px;
    }
}

/* 加载动画 */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}