/* 全局样式 - 微信小程序风格 */

/* CSS变量定义 */
:root {
    --primary-color: #07c160;
    --primary-hover: #06ad56;
    --secondary-color: #576b95;
    --success-color: #07c160;
    --warning-color: #ffc300;
    --danger-color: #fa5151;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    --bg-primary: #ffffff;
    --bg-secondary: #ededed;
    --bg-page: #f6f6f6;
    --border-color: #e5e5e5;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Helvetica, 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    background-color: var(--bg-page);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
    overflow-x: hidden;
}

/* 基础动画类 */
.fade-in {
    animation: fadeIn 0.4s ease-out;
}

.slide-up {
    animation: slideUp 0.5s ease-out;
}

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

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

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 0.8s linear infinite;
}

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

/* 头部导航样式 - 小程序导航栏风格 */
.site-header {
    background-color: var(--bg-primary);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 0.5px 0 var(--border-color);
}

.header-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
    height: 52px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
}

.logo img {
    max-width: 110px;
    max-height: 30px;
    object-fit: contain;
    vertical-align: middle;
}

.top-nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.top-nav ul {
    display: flex;
    list-style: none;
    gap: 6px;
}

.top-nav li {
    margin-left: 0;
}

.top-nav a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    padding: 6px 16px;
    border-radius: 20px;
    transition: all var(--transition-fast);
    display: inline-block;
    white-space: nowrap;
}

.top-nav a:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.top-nav a:active {
    background: var(--border-color);
}

@media (max-width: 480px) {
    .header-container {
        padding: 0 12px;
        height: 48px;
    }

    .logo {
        font-size: 15px;
    }

    .logo img {
        max-width: 90px;
        max-height: 26px;
    }

    .top-nav a {
        padding: 5px 10px;
        font-size: 13px;
    }
}

/* 主要内容区域 */
.main-content {
    min-height: calc(100vh - 100px);
    padding: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 首页内容区域 */
.home-content {
    min-height: calc(100vh - 100px);
    padding: 16px;
    max-width: 960px;
    margin: 0 auto;
}

/* 登录页面样式 */
.login-section {
    width: 100%;
    max-width: 400px;
    padding: 0 16px;
}

.login-form-container {
    background-color: #fff;
    padding: 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.login-title {
    font-size: 22px;
    margin-bottom: 8px;
    color: var(--text-primary);
    text-align: center;
    font-weight: 600;
}

.register-link {
    text-align: center;
    margin-bottom: 24px;
    font-size: 13px;
    color: var(--text-secondary);
}

.register-link a {
    color: var(--primary-color);
    text-decoration: none;
}

.register-link a:hover {
    opacity: 0.8;
}

/* 表单样式 */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-secondary);
    font-size: 13px;
}

.form-group input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 15px;
    background: var(--bg-page);
    transition: border-color var(--transition-fast);
    -webkit-appearance: none;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: #fff;
}

.form-group input::placeholder {
    color: #c0c0c0;
}

/* 密码输入容器 */
.password-input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-container input {
    padding-right: 44px;
}

.toggle-password {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    color: var(--text-tertiary);
    padding: 4px;
}

/* 登录选项 */
.login-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 13px;
}

.remember-me {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: var(--text-secondary);
}

.remember-me input {
    width: auto;
    margin-right: 6px;
    accent-color: var(--primary-color);
}

.forgot-password {
    color: var(--primary-color);
    text-decoration: none;
}

/* 登录按钮 */
.login-btn {
    width: 100%;
    padding: 12px 0;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-fast);
    -webkit-appearance: none;
}

.login-btn:hover {
    background-color: var(--primary-hover);
}

.login-btn:active {
    transform: scale(0.98);
}

/* 错误信息 */
.error-message {
    color: var(--danger-color);
    font-size: 12px;
    margin-top: 4px;
}

/* 底部导航样式 - 小程序 TabBar 风格 */
.site-footer {
    background-color: var(--bg-primary);
    padding: 4px 0;
    padding-bottom: calc(4px + env(safe-area-inset-bottom));
    border-top: 0.5px solid var(--border-color);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
}

.bottom-nav ul {
    display: flex;
    justify-content: space-around;
    list-style: none;
    max-width: 500px;
    margin: 0 auto;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
    padding: 4px 12px;
    min-width: 56px;
    -webkit-tap-highlight-color: transparent;
}

.nav-item:active {
    opacity: 0.7;
}

.nav-item.active {
    color: var(--primary-color);
}

.nav-icon {
    width: 24px;
    height: 24px;
    margin-bottom: 2px;
    display: block;
    object-fit: contain;
}

.nav-item span {
    font-size: 10px;
    line-height: 1.4;
}

/* 底部内边距，防止被底部导航遮挡 */
.home-content,
.main-content,
.profile-content,
.tutorial-content,
.payment-success-container,
.product-detail-container {
    padding-bottom: 70px;
}

.showQrCode-body {
    padding-bottom: 70px;
}

/* 版权信息 */
.footer-copyright {
    margin-bottom: 70px;
    background-color: var(--bg-primary);
    padding: 16px 12px;
    text-align: center;
    font-size: 11px;
    color: var(--text-tertiary);
    line-height: 1.8;
}

.site-footer + .footer-copyright {
    margin-top: 50px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-content {
        padding: 12px;
    }

    .login-form-container {
        padding: 20px;
    }

    .login-title {
        font-size: 20px;
    }

    .form-group input {
        padding: 10px 12px;
    }

    .login-btn {
        padding: 11px 0;
    }

    .logo img {
        max-width: 100px;
        max-height: 28px;
    }
}

@media (max-width: 480px) {
    .login-section {
        max-width: 100%;
        padding: 0 12px;
    }
}