/* 积分消费商城 - 现代化移动端样式 */

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Helvetica Neue', STHeiti, 'Microsoft Yahei', sans-serif;
    background: #f8f9fa;
    color: #333;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 颜色变量 */
:root {
    --primary-color: #ff6b35;
    --primary-dark: #e55a2b;
    --primary-light: #ff8a65;
    --secondary-color: #4a90e2;
    --success-color: #52c41a;
    --warning-color: #faad14;
    --error-color: #ff4d4f;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f5f5f5;
    --border-color: #e8e8e8;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

/* 工具类 */
.container {
    max-width: 750px;
    margin: 0 auto;
    padding: 0 16px;
    min-height: 100vh;
    background: var(--bg-primary);
}

/*
 * 修复：`.container` 在 `.navbar` 内部会把 fixed 顶栏撑到 100vh，导致页面内容被覆盖看起来“空白”。
 * 顶栏内部的 container 只用于宽度约束，不应继承页面容器的最小高度/背景。
 */
.navbar .container {
    min-height: 0;
    background: transparent;
}

.page-wrapper {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* 顶部导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

.navbar-brand {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-color);
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: nowrap;
    white-space: nowrap;
}

/* 积分显示文字不换行 */
.points-display {
    white-space: nowrap;
    flex-shrink: 0;
}

/* 顶栏内部内容布局（各页面复用） */
.header-content {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.navbar-location {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
}

.btn-nav {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    padding: 6px 8px;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    flex-shrink: 0;
}

.btn-nav:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
}

/* 主要内容区域 */
.main-content {
    padding-top: 64px;
    min-height: 100vh;
}

/* 卡片组件 */
.card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-secondary);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: #389e0d;
}

.btn-danger {
    background: var(--error-color);
    color: white;
}

.btn-danger:hover {
    background: #cf1322;
}

.btn-block {
    width: 100%;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 18px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 16px;
    background: var(--bg-primary);
    transition: all 0.3s ease;
    outline: none;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

/* 输入框组 */
.input-group {
    display: flex;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 2px solid var(--border-color);
    transition: border-color 0.3s ease;
}

.input-group:focus-within {
    border-color: var(--primary-color);
}

.input-group .form-control {
    border: none;
    border-radius: 0;
    flex: 1;
}

.input-group .input-group-append {
    display: flex;
    align-items: center;
    padding: 0 16px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

/* 商品卡片 */
.product-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    position: relative;
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 50%, #fecfef 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-image .product-icon {
    font-size: 48px;
    color: rgba(255, 255, 255, 0.8);
}

.product-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--primary-color);
    color: white;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
}

.product-info {
    padding: 16px;
}

.product-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
}

.product-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 12px;
    word-break: break-word;
    overflow-wrap: anywhere;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 兜底：即使某些页面误把富文本渲染进 .product-desc，也不要让图片溢出撑开布局 */
.product-desc img {
    max-width: 100%;
    height: auto;
}

.product-price {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product-points {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
}

.product-action {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-action:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.product-action:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
}

/* 网格布局 */
.grid {
    display: grid;
    gap: 16px;
}

.grid-1 { grid-template-columns: 1fr; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* 响应式网格 */
@media (min-width: 576px) {
    .grid-auto-fit {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

/* 积分显示 */
.points-display {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 20px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.points-value {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 4px;
    display: block;
}

.points-label {
    font-size: 14px;
    opacity: 0.9;
}

/* 标签页 */
.tab-nav {
    display: flex;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
}

.tab-item {
    flex: 1;
    padding: 16px;
    text-align: center;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.tab-item.active {
    color: var(--primary-color);
    background: rgba(255, 107, 53, 0.05);
}

.tab-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.empty-state-desc {
    font-size: 14px;
    line-height: 1.5;
}

/* 加载状态 */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-muted);
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 12px;
}

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

/* 消息提示 */
.message {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    font-size: 14px;
    display: flex;
    align-items: center;
}

.message-success {
    background: #f6ffed;
    border: 1px solid #b7eb8f;
    color: #52c41a;
}

.message-error {
    background: #fff2f0;
    border: 1px solid #ffccc7;
    color: #ff4d4f;
}

.message-warning {
    background: #fffbe6;
    border: 1px solid #ffe58f;
    color: #faad14;
}

.message-info {
    background: #e6f7ff;
    border: 1px solid #91d5ff;
    color: #1890ff;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 400px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal.show .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: 24px 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.modal-body {
    padding: 24px;
}

/* 响应式设计 */
@media (max-width: 576px) {
    .container {
        padding: 0 12px;
    }

    .navbar {
        padding: 10px 12px;
    }

    .navbar-actions {
        gap: 4px;
    }

    .navbar-brand {
        font-size: 15px;
    }

    .btn-nav {
        font-size: 13px;
        padding: 6px 4px;
    }

    /* 超小屏幕进一步压缩 */
    .points-display {
        padding: 4px 8px;
        font-size: 13px;
    }

    .btn {
        padding: 12px 20px;
        font-size: 15px;
    }

    .card-body {
        padding: 16px;
    }

    .product-info {
        padding: 16px;
    }

    .grid-auto-fit {
        grid-template-columns: 1fr;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* 打印样式 */
@media print {
    .navbar,
    .btn,
    .modal {
        display: none !important;
    }

    body {
        background: white !important;
    }

    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
}