/*
 * JDstore 统一设计系统 - v1.0
 * 包含所有页面共享的CSS变量和基础组件样式
 */

/* ======================================== */
/* 京东设计系统 - CSS变量 */
/* ======================================== */
:root {
    /* 品牌色 */
    --jd-red: #e1251b;
    --jd-red-dark: #c91515;
    --jd-orange: #ff6900;
    --jd-blue: #5c7cff;
    --jd-green: #00c853;
    
    /* 中性色 */
    --jd-black: #333333;
    --jd-gray: #666666;
    --jd-light-gray: #999999;
    --jd-border: #e0e0e0;
    --jd-bg-gray: #f8f8f8;
    --jd-white: #ffffff;
    
    /* 阴影系统 */
    --jd-shadow-xs: 0 1px 3px rgba(15, 15, 15, 0.04);
    --jd-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.08);
    --jd-shadow: 0 6px 20px rgba(15, 15, 15, 0.08);
    --jd-shadow-lg: 0 12px 40px rgba(15, 15, 15, 0.18);
    
    /* 圆角 */
    --jd-radius: 14px;
    --jd-radius-sm: 10px;
    
    /* 过渡动画 */
    --jd-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --jd-transition-fast: all 0.2s ease;
    
    /* 字体 */
    --jd-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    
    /* 响应式断点 */
    --jd-mobile: 768px;
}

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

html, body {
    height: 100%;
}

body {
    font-family: var(--jd-font);
    background: radial-gradient(circle at 0% 0%, #ffffff 0, #f6f6f8 40%, #eef2f8 100%);
    color: var(--jd-black);
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ======================================== */
/* 页面骨架组件 */
/* ======================================== */
.page-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.page-main {
    flex: 1;
}

.page-footer {
    border-top: 1px solid #e5e5e5;
    background: #fafafa;
    margin-top: 40px;
}

.page-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 18px 20px 26px;
    font-size: 12px;
    color: var(--jd-light-gray);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

/* ======================================== */
/* 卡片组件 */
/* ======================================== */
.section-card {
    background: rgba(255,255,255,0.98);
    border-radius: var(--jd-radius);
    box-shadow: var(--jd-shadow);
    border: 1px solid rgba(0,0,0,0.03);
    overflow: hidden;
    position: relative;
}

.section-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 0 0, rgba(225,37,27,0.04), transparent 55%);
    pointer-events: none;
}

.section-header {
    padding: 24px 30px 20px;
    border-bottom: 1px solid var(--jd-border);
    position: relative;
    z-index: 1;
}

.section-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--jd-black);
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title::before {
    content: "";
    width: 4px;
    height: 20px;
    border-radius: 999px;
    background: linear-gradient(180deg, var(--jd-red), #ff9f65);
}

.section-content {
    padding: 20px 30px;
    position: relative;
    z-index: 1;
}

/* ======================================== */
/* 按钮组件 */
/* ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: 999px;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    border: none;
    transition: var(--jd-transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--jd-red-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(225, 37, 27, 0.3);
}

.btn-secondary {
    background: var(--jd-gray);
    color: white;
}

.btn-secondary:hover {
    background: var(--jd-black);
    transform: translateY(-2px);
}

/* ======================================== */
/* 输入框组件 */
/* ======================================== */
.form-input {
    width: 100%;
    padding: 12px 18px;
    border: 1px solid var(--jd-border);
    border-radius: 999px;
    font-size: 14px;
    transition: var(--jd-transition);
    background: var(--jd-white);
    color: var(--jd-black);
}

.form-input:focus {
    outline: none;
    border-color: var(--jd-red);
    box-shadow: 0 0 0 2px rgba(225, 37, 27, 0.2), 0 8px 20px rgba(225,37,27,0.15);
}

.form-input::placeholder {
    color: var(--jd-light-gray);
}

/* ======================================== */
/* 表格组件 */
/* ======================================== */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    position: relative;
    z-index: 1;
}

.data-table th {
    background: var(--jd-bg-gray);
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--jd-gray);
    border-bottom: 1px solid var(--jd-border);
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--jd-border);
    color: var(--jd-gray);
    transition: var(--jd-transition);
}

.data-table tr:hover td {
    background: rgba(225, 37, 27, 0.02);
    color: var(--jd-black);
}

/* ======================================== */
/* 状态徽章 */
/* ======================================== */
.status-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.success {
    background: rgba(0, 200, 83, 0.12);
    color: var(--jd-green);
}

.status-badge.warning {
    background: rgba(255, 105, 0, 0.12);
    color: var(--jd-orange);
}

.status-badge.danger {
    background: rgba(225, 37, 27, 0.12);
    color: var(--jd-red);
}

.status-badge.info {
    background: rgba(92, 124, 255, 0.12);
    color: var(--jd-blue);
}

/* ======================================== */
/* 分页组件 */
/* ======================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 24px 30px;
    background: var(--jd-bg-gray);
}

.page-btn {
    padding: 8px 12px;
    border: 1px solid var(--jd-border);
    background: var(--jd-white);
    cursor: pointer;
    border-radius: 8px;
    color: var(--jd-gray);
    text-decoration: none;
    font-size: 14px;
    transition: var(--jd-transition);
    display: flex;
    align-items: center;
    gap: 5px;
}

.page-btn:hover, .page-btn.active {
    background: var(--jd-red);
    color: var(--jd-white);
    border-color: var(--jd-red);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(225, 37, 27, 0.3);
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ======================================== */
/* 空状态提示 */
/* ======================================== */
.empty-tip {
    text-align: center;
    padding: 60px 30px;
    color: var(--jd-light-gray);
    position: relative;
    z-index: 1;
}

.empty-tip i {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.5;
    color: var(--jd-light-gray);
    display: block;
}

.empty-tip h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--jd-gray);
}

/* ======================================== */
/* 顶部导航 */
/* ======================================== */
.top-nav {
    background: rgba(227, 228, 229, 0.9);
    border-bottom: 1px solid #ddd;
    font-size: 12px;
    color: var(--jd-gray);
    position: sticky;
    top: 0;
    z-index: 1001;
    backdrop-filter: blur(10px);
    transition: var(--jd-transition);
}

.top-nav.scrolled {
    box-shadow: 0 4px 18px rgba(0,0,0,0.16);
    background: rgba(227, 228, 229, 0.98);
}

.top-nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 6px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.location {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    padding: 4px 10px;
    border-radius: 999px;
    transition: var(--jd-transition);
    background: rgba(255,255,255,0.6);
}

.location:hover {
    background: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.user-menu {
    display: flex;
    gap: 18px;
    align-items: center;
}

.user-menu a {
    color: var(--jd-gray);
    text-decoration: none;
    transition: var(--jd-transition);
    padding: 4px 8px;
    border-radius: 4px;
}

.user-menu a:hover {
    color: var(--jd-red);
    background: rgba(225, 37, 27, 0.06);
}

/* ======================================== */
/* 主头部 */
/* ======================================== */
.main-header {
    background: rgba(255,255,255,0.96);
    border-bottom: 2px solid var(--jd-red);
    position: sticky;
    top: 30px;
    z-index: 1000;
    box-shadow: var(--jd-shadow-sm);
    backdrop-filter: blur(10px);
    transition: var(--jd-transition);
}

.main-header.scrolled {
    box-shadow: 0 8px 24px rgba(0,0,0,0.14);
    background: rgba(255,255,255,0.99);
}

.main-header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 14px 20px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 40px;
}

.jd-logo {
    font-size: 26px;
    font-weight: 800;
    color: var(--jd-red);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
    transition: var(--jd-transition);
    letter-spacing: -0.5px;
}

.jd-logo-mainline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.jd-logo-mainline::before {
    content: "🛒";
    font-size: 30px;
}

.jd-logo-subline {
    font-size: 11px;
    font-weight: 500;
    color: var(--jd-light-gray);
}

.jd-logo:hover {
    transform: translateY(-1px) scale(1.02);
}

/* ======================================== */
/* 响应式 */
/* ======================================== */
@media (max-width: 768px) {
    .section-card {
        border-radius: 0;
        box-shadow: none;
        border-left: none;
        border-right: none;
    }
    
    .section-header {
        padding: 18px 20px 16px;
    }
    
    .section-content {
        padding: 15px 20px;
    }
    
    .btn {
        padding: 8px 16px;
        font-size: 13px;
    }
}