/* ===== 物料管理系统 · 轻量样式（手机端优先） ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    background: #f0f2f5;
    color: #333;
    line-height: 1.6;
    -webkit-text-size-adjust: 100%;
}
a { color: #1890ff; text-decoration: none; }
a:hover { color: #40a9ff; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* ===== 头部导航 ===== */
.header {
    background: linear-gradient(135deg, #1890ff, #096dd9);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.logo { color: #fff; font-size: 18px; font-weight: bold; letter-spacing: 1px; white-space: nowrap; }
.logo:hover { color: #fff; }
.nav-menu { display: flex; gap: 2px; align-items: center; }
.nav-menu a { color: rgba(255,255,255,0.88); padding: 6px 11px; border-radius: 4px; font-size: 14px; transition: all 0.2s; white-space: nowrap; }
.nav-menu a:hover, .nav-menu a.active { background: rgba(255,255,255,0.18); color: #fff; }
.user-info { color: rgba(255,255,255,0.9); font-size: 13px; padding: 0 8px; white-space: nowrap; }
.logout-btn { color: rgba(255,255,255,0.9) !important; background: rgba(255,255,255,0.12) !important; }
.menu-btn { display: none; background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; padding: 4px 8px; line-height: 1; }

/* ===== 主内容区 ===== */
.main-container { min-height: calc(100vh - 56px - 60px); padding: 20px 0 40px; }

/* ===== 卡片 ===== */
.card { background: #fff; border-radius: 8px; box-shadow: 0 1px 4px rgba(0,0,0,0.08); padding: 20px; margin-bottom: 18px; }
.card-title { font-size: 17px; font-weight: 600; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid #f0f0f0; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.count-badge { display: inline-block; background: #e6f7ff; color: #1890ff; font-size: 12px; font-weight: 600; padding: 2px 9px; border-radius: 10px; }

/* ===== 统计卡片 ===== */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat-card { background: #fff; border-radius: 8px; padding: 18px; box-shadow: 0 1px 4px rgba(0,0,0,0.08); display: flex; align-items: center; gap: 14px; }
.stat-icon { width: 52px; height: 52px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 26px; flex-shrink: 0; }
.stat-icon.blue { background: #e6f7ff; }
.stat-icon.green { background: #f6ffed; }
.stat-icon.orange { background: #fff7e6; }
.stat-icon.red { background: #fff1f0; }
.stat-value { font-size: 26px; font-weight: 700; color: #333; line-height: 1.2; }
.stat-label { font-size: 13px; color: #999; margin-top: 2px; }

/* ===== 按钮 ===== */
.btn { display: inline-block; padding: 8px 18px; border: 1px solid transparent; border-radius: 4px; font-size: 14px; cursor: pointer; transition: all 0.2s; text-align: center; line-height: 1.4; }
.btn-primary { background: #1890ff; color: #fff; }
.btn-primary:hover { background: #40a9ff; color: #fff; }
.btn-success { background: #52c41a; color: #fff; }
.btn-success:hover { background: #73d13d; color: #fff; }
.btn-danger { background: #ff4d4f; color: #fff; }
.btn-danger:hover { background: #ff7875; color: #fff; }
.btn-warning { background: #faad14; color: #fff; }
.btn-warning:hover { background: #ffc53d; color: #fff; }
.btn-outline { background: #fff; color: #1890ff; border-color: #1890ff; }
.btn-outline:hover { background: #e6f7ff; }
.btn-sm { padding: 4px 12px; font-size: 12px; }
.btn-group { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }

/* ===== 表单 ===== */
.form-group { margin-bottom: 15px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 14px; color: #555; }
.form-control { width: 100%; padding: 9px 12px; border: 1px solid #d9d9d9; border-radius: 4px; font-size: 15px; transition: border-color 0.2s; background: #fff; }
.form-control:focus { outline: none; border-color: #1890ff; box-shadow: 0 0 0 2px rgba(24,144,255,0.2); }
select.form-control { appearance: auto; }
textarea.form-control { resize: vertical; min-height: 70px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.hint { color: #999; font-size: 12px; }

.search-bar { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; align-items: center; }
.search-bar .form-control { max-width: 260px; }

.inline-form { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
.inline-form .form-control { flex: 1; min-width: 140px; }

.filter-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 16px; align-items: end; }
.filter-grid .form-group { margin-bottom: 0; }
.filter-actions { display: flex; gap: 8px; align-items: center; }

/* ===== 分类 chips ===== */
.chip-row { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.chip { padding: 4px 12px; border: 1px solid #d9d9d9; border-radius: 14px; font-size: 13px; color: #555; background: #fff; }
.chip:hover { border-color: #1890ff; color: #1890ff; }
.chip-active { background: #1890ff; border-color: #1890ff; color: #fff !important; }

/* ===== 表格 ===== */
.table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead { background: #fafafa; }
th { padding: 11px 14px; text-align: left; font-weight: 600; color: #555; border-bottom: 2px solid #f0f0f0; white-space: nowrap; }
td { padding: 11px 14px; border-bottom: 1px solid #f0f0f0; vertical-align: middle; }
tbody tr:hover { background: #fafafa; }
code { background: #f5f5f5; padding: 1px 6px; border-radius: 3px; font-size: 12.5px; }
.op-cell { white-space: nowrap; }
.op-cell form { display: inline; }
.table-foot { text-align: center; color: #999; font-size: 13px; padding: 12px 0 0; }
.empty-tip { color: #999; text-align: center; padding: 28px; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 10px; font-size: 12px; font-weight: 500; white-space: nowrap; }
.badge-success { background: #f6ffed; color: #52c41a; border: 1px solid #b7eb8f; }
.badge-warning { background: #fffbe6; color: #faad14; border: 1px solid #ffe58f; }
.badge-danger { background: #fff1f0; color: #ff4d4f; border: 1px solid #ffa39e; }
.badge-info { background: #e6f7ff; color: #1890ff; border: 1px solid #91caff; }

/* ===== 提示条 ===== */
.alert { border-radius: 6px; padding: 12px 16px; margin-bottom: 14px; font-size: 14px; }
.alert-success { background: #f6ffed; border: 1px solid #b7eb8f; color: #389e0d; }
.alert-error { background: #fff1f0; border: 1px solid #ffa39e; color: #cf1322; }
.login-error { background: #fff1f0; border: 1px solid #ffa39e; color: #ff4d4f; padding: 10px 12px; border-radius: 4px; margin-bottom: 16px; font-size: 14px; }
.progress-note { background: #e6f7ff; border: 1px solid #91caff; border-radius: 4px; padding: 10px 14px; margin-bottom: 14px; font-size: 14px; }

/* ===== 物品明细行 ===== */
.item-row { display: grid; grid-template-columns: 1fr 130px 40px; gap: 8px; margin-bottom: 8px; align-items: center; }
.qty-input { max-width: 140px; }

/* ===== 导出 ===== */
.export-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.export-item { border: 1px solid #f0f0f0; border-radius: 8px; padding: 24px; text-align: center; }
.export-ico { font-size: 44px; margin-bottom: 12px; }
.export-item h3 { margin-bottom: 8px; }
.export-item .hint { margin-bottom: 14px; }
.date-range { display: flex; gap: 8px; align-items: center; justify-content: center; margin-bottom: 12px; flex-wrap: wrap; }
.date-range .form-control { width: auto; }

/* ===== 登录页 ===== */
.login-wrapper { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 16px; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
.login-card { background: #fff; border-radius: 12px; padding: 36px 28px; width: 100%; max-width: 400px; box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.login-card h2 { text-align: center; margin-bottom: 6px; color: #333; }
.login-card .subtitle { text-align: center; color: #999; margin-bottom: 26px; font-size: 14px; }
.login-card .btn { width: 100%; padding: 12px; font-size: 16px; }

/* ===== 底部 ===== */
.footer { background: #fafafa; border-top: 1px solid #e8e8e8; text-align: center; padding: 16px; color: #999; font-size: 13px; }

/* ===== 响应式（手机） ===== */
@media (max-width: 820px) {
    .menu-btn { display: block; }
    .nav-menu {
        display: none;
        position: absolute;
        top: 56px; left: 0; right: 0;
        background: #096dd9;
        flex-direction: column;
        align-items: stretch;
        padding: 8px;
        gap: 2px;
        max-height: calc(100vh - 56px);
        overflow-y: auto;
        box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    }
    .nav-menu.show { display: flex; }
    .nav-menu a { padding: 12px 16px; font-size: 15px; }
    .user-info { padding: 10px 16px; }
    .logout-btn { text-align: center; }
    .form-row { grid-template-columns: 1fr; }
    .search-bar { flex-direction: column; align-items: stretch; }
    .search-bar .form-control { max-width: 100%; }
    .filter-grid { grid-template-columns: 1fr 1fr; }
    .filter-actions { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .stat-card { padding: 14px; gap: 10px; }
    .stat-icon { width: 42px; height: 42px; font-size: 20px; }
    .stat-value { font-size: 20px; }
    .card { padding: 14px; }
    .container { padding: 0 12px; }
    .item-row { grid-template-columns: 1fr 90px 36px; }
    .filter-grid { grid-template-columns: 1fr; }
    th, td { padding: 9px 10px; font-size: 13px; }
    .form-control { font-size: 16px; } /* 防止 iOS 聚焦缩放 */
}