/**
 * 自定义下拉组件样式（shadcn 风格）
 * 配合 assets/js/custom-select.js 使用。主色自动取站点变量：
 * 前台 --primary-color / 后台 --prev-color-primary，缺省回退 #3b82f6
 */
.cs-select {
    position: relative;
    display: inline-block;
    width: 100%;
    vertical-align: middle;
    text-align: left;
    font-size: 14px;
}

/* 原生 select：视觉隐藏但保留在 DOM（保证 required 验证可聚焦、表单正常提交） */
.cs-select .cs-native {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    opacity: 0;
    pointer-events: none;
}

/* 触发器 */
.cs-trigger {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    width: 100%;
    min-height: 38px;
    padding: 8px 12px;
    margin: 0;
    font-size: 14px;
    line-height: 1.4;
    color: #1f2937;
    text-align: left;
    background: #fff;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.cs-trigger:hover {
    border-color: var(--primary-color, var(--prev-color-primary, #3b82f6));
}

.cs-select.cs-open .cs-trigger,
.cs-trigger:focus-visible {
    outline: none;
    border-color: var(--primary-color, var(--prev-color-primary, #3b82f6));
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.cs-label {
    flex: 1 1 auto;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cs-select.cs-placeholder .cs-label {
    color: #9ca3af;
}

.cs-icon {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    color: #6b7280;
    transition: transform 0.2s ease;
}

.cs-icon svg {
    width: 16px;
    height: 16px;
    display: block;
}

.cs-select.cs-open .cs-icon {
    transform: rotate(180deg);
}

/* 弹出菜单 */
.cs-menu {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10000;
    min-width: 100%;
    max-height: 280px;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 4px;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px) scale(0.98);
    transform-origin: top center;
    transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s;
}

.cs-select.cs-open .cs-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* 选项 */
.cs-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    font-size: 14px;
    color: #374151;
    border-radius: 6px;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.12s ease, color 0.12s ease;
}

.cs-option:hover,
.cs-option.cs-active {
    background: #f3f4f6;
}

.cs-option.cs-selected {
    color: var(--primary-color, var(--prev-color-primary, #3b82f6));
    font-weight: 500;
}

.cs-option.cs-selected::after {
    content: '\2713';
    margin-left: auto;
    font-size: 12px;
}

.cs-option.cs-option-disabled {
    color: #c0c4cc;
    cursor: not-allowed;
}

.cs-option.cs-option-disabled:hover {
    background: transparent;
}

/* 禁用态 */
.cs-select.cs-disabled {
    opacity: 0.6;
}

.cs-select.cs-disabled .cs-trigger {
    cursor: not-allowed;
    background: #f5f7fa;
}

/* 菜单滚动条 */
.cs-menu::-webkit-scrollbar {
    width: 8px;
}

.cs-menu::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 4px;
}

.cs-menu::-webkit-scrollbar-track {
    background: transparent;
}

/* ===== 暗黑模式 ===== */
body.dark-mode .cs-trigger {
    background: #1f2937;
    color: #f3f4f6;
    border-color: #374151;
}

body.dark-mode .cs-menu {
    background: #1f2937;
    border-color: #374151;
}

body.dark-mode .cs-option {
    color: #e5e7eb;
}

body.dark-mode .cs-option:hover,
body.dark-mode .cs-option.cs-active {
    background: #374151;
}

body.dark-mode .cs-select.cs-placeholder .cs-label {
    color: #6b7280;
}

body.dark-mode .cs-select.cs-disabled .cs-trigger {
    background: #111827;
}

body.dark-mode .cs-menu::-webkit-scrollbar-thumb {
    background: #4b5563;
}

/* ===== 在线时间段（“在线时间”选“不可以”时显示的起止时间下拉，发布/编辑表单共用） ===== */
.online-time-range {
    display: none;
    margin-top: 10px;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.online-time-range.show {
    display: flex;
}
.online-time-range .cs-select,
.online-time-range > select {
    flex: 1 1 130px;
    min-width: 0;
}
.online-time-range .online-time-sep {
    flex: 0 0 auto;
    color: #6b7280;
    font-size: 14px;
}