/* ============================================================
   NaviHub - 前台样式（扁平化设计）
   ============================================================ */

/* ===== CSS Variables (injected by PHP) ===== */
:root {
    --primary: #4F46E5;
    --secondary: #0EA5E9;
    --bg: #F0F5FF;
    --card-bg: #FFFFFF;
    --text: #1E293B;
    --text-secondary: #64748B;
    --border: #E2E8F0;
    --search-start: #4F46E5;
    --card-radius: 12px;
    --card-shadow: 0 1px 3px rgba(0,0,0,0.06);
    --card-hover-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* ===== Reset ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; overflow: hidden; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    height: 100%;
    line-height: 1.6;
    transition: background 0.3s, color 0.3s;
}

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

/* ===== 进入后台按钮（右上角） ===== */
.admin-entry-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-secondary);
    font-size: 18px;
    transition: all 0.25s cubic-bezier(0.4,0,0.2,1);
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    text-decoration: none;
    border: 1px solid rgba(255,255,255,0.3);
}
.admin-entry-btn:hover {
    background: rgba(255,255,255,0.9);
    color: var(--text);
    transform: scale(1.08) rotate(30deg);
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}
.admin-entry-btn:active {
    background: rgba(0,0,0,0.06);
}
[data-theme="dark"] .admin-entry-btn {
    background: rgba(30,41,59,0.65);
    border-color: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.7);
    box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}
[data-theme="dark"] .admin-entry-btn:hover {
    background: rgba(30,41,59,0.9);
    color: #FFF;
    box-shadow: 0 4px 20px rgba(0,0,0,0.35);
}

/* ===== Main Content（滚动容器） ===== */
.main {
    max-width: 1200px; margin: 0 auto;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 210px 24px 100px;
    display: flex;
    flex-direction: column;
}
.main::-webkit-scrollbar { width: 4px; }
.main::-webkit-scrollbar-thumb { background: rgba(148,163,184,0.3); border-radius: 3px; }

/* ===== 头部固定区域（日期 + 搜索） ===== */
.header-fixed {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    max-width: 1200px;
    width: 100%;
    z-index: 50;
    padding: 0 24px 0;
    will-change: transform;
}
/* ===== 日期时间区域（轻量化重构） ===== */
.datetime-section {
    text-align: center;
    padding: 14px 0 0;
}

.datetime-time {
    font-size: 48px;
    font-weight: 800;
    color: var(--clock-nav-color);
    letter-spacing: 3px;
    line-height: 1.1;
    font-variant-numeric: tabular-nums;
}

.datetime-info {
    margin-top: 4px;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--clock-nav-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    letter-spacing: 0.5px;
}

.datetime-dot {
    color: rgba(148, 163, 184, 0.3);
    font-size: 10px;
}

/* ===== 搜索区域 ===== */
.search-section {
    text-align: center;
    padding: 0 0 20px;
}
/* ===== 搜索区域 ===== */
.search-box {
    max-width: 680px; margin: 0 auto;
    border-radius: 20px; padding: 6px;
    box-shadow: 0 8px 32px color-mix(in srgb, var(--search-start) 40%, transparent);
}

.search-inner {
    display: flex; align-items: center;
    background: var(--card-bg);
    border-radius: 16px; padding: 4px;
    position: relative;
}

.search-icon-wrap {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0 0 0 16px;
    cursor: pointer;
    position: relative;
    user-select: none;
}

.search-icon {
    color: var(--text-secondary); font-size: 18px;
    transition: color 0.2s;
    min-width: 18px;
    text-align: center;
}
.search-icon-custom {
    color: var(--text-secondary);
    font-size: 18px;
    transition: color 0.2s;
    min-width: 18px;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.search-icon-emoji {
    font-size: 20px;
    line-height: 1;
}
.search-icon-img-el {
    width: 20px;
    height: 20px;
    object-fit: contain;
}
.search-icon-wrap:hover .search-icon { color: var(--primary); }
.search-icon-wrap:hover .search-icon-custom { color: var(--primary); }

.search-icon-arrow {
    font-size: 10px;
    color: var(--text-secondary);
    transition: transform 0.25s ease, color 0.2s;
}
.search-icon-wrap:hover .search-icon-arrow { color: var(--primary); }

.search-input {
    flex: 1; border: none; background: transparent;
    padding: 14px 12px; font-size: 16px; color: var(--text); outline: none;
}
.search-input::placeholder { color: #94A3B8; }

/* ===== 搜索框内嵌后台入口（仅小屏显示） ===== */
.admin-entry-inline {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 16px;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    flex-shrink: 0;
    transition: color 0.2s, background 0.2s;
    margin-right: 2px;
}
.admin-entry-inline:hover {
    color: var(--primary);
    background: var(--bg);
}

.search-btn {
    width: 48px; height: 48px; border-radius: 12px; border: none;
    background: transparent; color: var(--text-secondary); cursor: pointer;
    font-size: 20px; transition: all 0.2s; display: flex;
    align-items: center; justify-content: center;
}
.search-btn:hover { color: var(--primary); }

/* ===== 链接网格（响应式列数 - 屏幕越小卡片越多） ===== */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
    gap: 10px;
}

/* 仅 1 个小屏断点：<480px 放宽列宽下限到 80px，保证小米14(400) 4列、iPhone(390) 3列 */
@media (max-width: 480px) {
    .links-grid { grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); }
}

/* 保留：≤1200 隐藏右侧分类导航（布局功能，与列数无关） */
@media (max-width: 1200px) {
    .category-nav { display: none; }
}
/* 保留：≤1024 禁用卡片 hover 位移（触屏设备） */
@media (max-width: 1024px) {
    .card:hover { transform: none; }
}
/* 保留：≤768 解锁卡片 150px 尺寸限制，让 grid 自动分配宽度 */
@media (max-width: 768px) {
    .card-wrap {
        max-width: none;
        max-height: none;
        display: block;
    }
}

/* ===== 分类单页切换 ===== */
.links-section {
    flex: 1;
    min-height: 0;
    overflow: hidden;
    position: relative;
}
.category-section {
    height: 100%;
    overflow-y: auto;
    padding: 4px 0;
    opacity: 0;
    transform: translateY(12px);
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0s 0.35s;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
}
.category-section.active {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
    transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0s 0s;
}
.category-section::-webkit-scrollbar { width: 5px; }
.category-section::-webkit-scrollbar-thumb { background: rgba(148,163,184,0.3); border-radius: 5px; }
.category-section::-webkit-scrollbar-track { background: transparent; }

/* 分类内容超出时的底部渐变提示：引导用户向下滚动查看更多 */
.category-section.has-more::after {
    content: '↓ 滚动查看更多';
    position: sticky;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    padding: 20px 0 12px;
    font-size: 12px;
    color: var(--text-secondary);
    opacity: 0.7;
    letter-spacing: 1px;
    background: linear-gradient(to top, rgba(255,255,255,0.85) 0%, transparent 100%);
    pointer-events: none;
    transition: opacity 0.3s;
}
[data-theme="dark"] .category-section.has-more::after {
    background: linear-gradient(to top, rgba(15,23,42,0.85) 0%, transparent 100%);
}
.category-section.has-more.scrolled-bottom::after {
    opacity: 0;
}

/* ===== Card Wrap (for drag) ===== */
.card-wrap {
    position: relative;
    display: flex;
    width: 100%;
    max-width: 150px;
    max-height: 150px;
    aspect-ratio: 1 / 1;
}
.card-wrap .card {
    flex: 1;
}
.card-wrap[draggable="true"] {
    cursor: grab;
}
.card-wrap[draggable="true"]:active {
    cursor: grabbing;
}
.card-wrap.dragging {
    opacity: 0.4;
}
.card-wrap.drag-over {
    transform: scale(1.02);
}

/* ===== Card 顶部光晕
.card::after {
    content: '';
    position: absolute;
    top: 0; left: 10%; right: 10%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}
.card:hover::after {
    opacity: 1;
} ===== */

/* ===== Card ===== */
.card {
    background: transparent;
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    padding: 16px;
    display: flex; flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    position: relative;
    overflow: hidden;
    min-height: 120px;
}

/* Card 毛玻璃背景层 */
.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--card-bg);
    opacity: calc(var(--card-glass-opacity) / 100);
    z-index: -1;
    border-radius: inherit;
}

[data-theme="dark"] .card::before { opacity: calc(var(--card-glass-opacity) / 100); }

/* ===== 图标方块模式卡片（card-icon-block） ===== */
.card-icon-block {
    padding: 0;
    min-height: auto;
    align-items: center;
    gap: 4px;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    width: 100%;
    height: 100%;
    box-shadow: none;
}
.card-icon-block::before { display: none; }

.card-icon-block-img {
    width: 100%;
    height: 100%;
    max-width: none;
    aspect-ratio: unset;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--card-radius);
    overflow: hidden;
    transition: filter 0.3s ease, transform 0.3s ease;
    position: relative;
    background: transparent;
}
.card-icon-block-img::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: var(--custom-bg, linear-gradient(145deg, var(--primary), color-mix(in srgb, var(--primary) 70%, var(--secondary))));
    opacity: calc(var(--icon-bg-opacity) / 100);
    z-index: 0;
    transition: none;
}
.card-icon-block:hover .card-icon-block-img {
    transform: scale(1.05);
}

.card-icon-block-favicon {
    width: 80%;
    height:80%;
    transition: none;
    max-width: none;
    max-height: none;
    object-fit: cover;
    border-radius: var(--card-radius);
    background: rgba(255,255,255,0);
    padding: 0;
    box-sizing: border-box;
    position: relative;
    z-index: 1;
}

.card-icon-block-fa {
    font-size: 4.5rem;
    color: #FFF;
    text-shadow: 0 2px 12px rgba(0,0,0,0.2);
    position: relative;
    z-index: 1;
}

.card-icon-block-emoji {
    font-size: 4.5rem;
    line-height: 1;
    position: relative;
    z-index: 1;
}

.card-icon-block-name {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    font-size: 12px;
    font-weight: 600;
    color: #FFF;
    text-align: center;
    padding: 18px 6px 0px;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 100%;
    box-sizing: border-box;
    letter-spacing: 0.02em;
    /*background: linear-gradient(transparent, rgba(0,0,0,0.65)); 字体阴影背景*/
    border-radius: 0 0 var(--card-radius) var(--card-radius);
    pointer-events: none;
    z-index: 1;
}

.card:hover {
    transform: translateY(-4px);
}

.card-icon {
    width: 48px; height: 48px; border-radius: 12px;
    background: var(--bg); display: flex;
    align-items: center; justify-content: center;
    font-size: 24px; color: var(--primary); margin-bottom: 12px;
    overflow: hidden;
}

.card-favicon { width: 28px; height: 28px; object-fit: contain; }
.card-emoji { font-size: 28px; line-height: 1; }

.card-info { flex: 1; }

.card-title {
    font-size: 15px; font-weight: 600; color: var(--text);
    margin-bottom: 4px; line-height: 1.4;
}

.card-desc {
    font-size: 13px; color: var(--text-secondary);
    line-height: 1.5; overflow: hidden;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center; padding: 80px 20px;
}
.empty-icon { font-size: 64px; margin-bottom: 16px; }
.empty-state h3 { font-size: 20px; color: var(--text); margin-bottom: 8px; }
.empty-state p { color: var(--text-secondary); margin-bottom: 24px; }

.empty-btn {
    display: inline-flex; padding: 12px 28px; border-radius: 12px;
    background: var(--primary); color: #FFF; font-weight: 600;
    font-size: 15px; transition: all 0.2s;
}
.empty-btn:hover { opacity: 0.9; transform: translateY(-2px); }

/* ===== 分类悬浮导航（右侧图标+文字） ===== */
.category-nav {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.cat-nav-item {
    --nav-bg-opacity: 0.7;
    display: flex;
    background: color-mix(in srgb, var(--nav-bg) calc(var(--nav-bg-opacity) * 100%), transparent);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 8px 6px;
    border-radius: 14px;
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 52px;
    height: 56px;
    box-sizing: border-box;
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    line-height: 1.2;
    border: none;
}
.cat-nav-item.active {
    background: color-mix(in srgb, var(--nav-bg) calc(var(--nav-bg-opacity) * 100%), transparent);
    filter: brightness(0.9);
    color: var(--text);
}
.cat-nav-item.active .cat-nav-icon,
.cat-nav-item.active .cat-nav-label {
    color: var(--nav-text-color, var(--text));
}
.cat-nav-item:hover {
    background: color-mix(in srgb, var(--nav-bg) calc(var(--nav-bg-opacity) * 100%), transparent);
    filter: brightness(1.1);
    transform: translateX(-2px);
}
[data-theme="dark"] .cat-nav-item.active {
    background: color-mix(in srgb, var(--nav-bg) calc(var(--nav-bg-opacity) * 100%), transparent);
    filter: brightness(1.2);
    color: #FFF;
}
[data-theme="dark"] .cat-nav-item.active .cat-nav-icon,
[data-theme="dark"] .cat-nav-item.active .cat-nav-label {
    color: var(--nav-text-color, #FFF);
}
[data-theme="dark"] .cat-nav-item:hover {
    background: color-mix(in srgb, var(--nav-bg) calc(var(--nav-bg-opacity) * 100%), transparent);
    filter: brightness(1.3);
}

.cat-nav-icon {
    font-size: 20px;
    line-height: 1;
    color: var(--nav-text-color, #64748b);
    transition: color 0.2s;
}
.cat-nav-item:hover .cat-nav-icon {
    color: var(--nav-text-color, var(--text));
}
[data-theme="dark"] .cat-nav-item:hover .cat-nav-icon {
    color: var(--nav-text-color, #FFF);
}

.cat-nav-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--nav-text-color, var(--text-secondary));
    text-align: center;
    line-height: 1.2;
    letter-spacing: 0.02em;
    transition: color 0.2s, opacity 0.2s, visibility 0.2s;
    opacity: 0;
    visibility: hidden;
}
.cat-nav-item.active .cat-nav-label {
    opacity: 1;
    visibility: visible;
    color: var(--nav-text-color, var(--text));
}
.cat-nav-item:hover .cat-nav-label {
    opacity: 1;
    visibility: visible;
    color: var(--nav-text-color, var(--text));
}
[data-theme="dark"] .cat-nav-item.active .cat-nav-label,
[data-theme="dark"] .cat-nav-item:hover .cat-nav-label {
    color: var(--nav-text-color, #FFF);
}

.cat-nav-img {
    width: 22px;
    height: 22px;
    object-fit: contain;
}

.cat-nav-add {
    border: none;
    outline: none;
    cursor: pointer;
    font-family: inherit;
    appearance: none;
    -webkit-appearance: none;
    box-shadow: none;
}
.cat-nav-add::-moz-focus-inner {
    border: 0;
    padding: 0;
}
.cat-nav-add:focus {
    outline: none;
    box-shadow: none;
}

.cat-nav-add .cat-nav-icon i {
    font-size: 20px;
    color: var(--nav-text-color, #64748b);
    transition: color 0.2s;
}
.cat-nav-add:hover {
    background: #10B981;
}
.cat-nav-add:hover .cat-nav-icon i {
    color: #FFF;
}

/* ===== 模态框 ===== */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-box {
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255,255,255,0.4);
    border-radius: 18px;
    width: 420px;
    max-width: 90vw;
    box-shadow: 0 20px 60px rgba(0,0,0,0.08);
    overflow: hidden;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px 12px;
    border-bottom: 1px solid var(--border);
}
.modal-header h3 {
    margin: 0;
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
}

.modal-close {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    border: none;
    background: var(--bg);
    color: var(--text-secondary);
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}
.modal-close:hover {
    background: var(--border);
    color: var(--text);
}

.modal-body {
    padding: 10px 24px;
}

.modal-footer {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    padding: 10px 24px 14px;
    border-top: 1px solid var(--border);
}

/* ===== 表单控件 ===== */
.form-group {
    margin-bottom: 16px;
}
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: rgba(30,41,59,0.7);
    margin-bottom: 6px;
}
.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid rgba(255,255,255,0.5);
    border-radius: 10px;
    font-size: 14px;
    color: var(--text);
    background: rgba(255,255,255,0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    outline: none;
    transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
.form-control:focus {
    border-color: var(--primary);
    background: rgba(255,255,255,0.6);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}
.form-control optgroup,
.form-control option {
    background: #fff;
    color: #1E293B;
}

.form-error {
    color: #EF4444;
    font-size: 13px;
    padding: 8px 12px;
    background: #FEF2F2;
    border-radius: 8px;
    margin-top: 4px;
}

.btn {
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}
.btn-primary {
    background: rgba(15,23,42,0.35);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: #FFF;
}
.btn-primary:hover {
    opacity: 0.9;
}
.btn-outline {
    background: rgba(255,255,255,0.3);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    color: var(--text-secondary);
    border: 1px solid rgba(255,255,255,0.5);
}
.btn-outline:hover {
    background: rgba(15,23,42,0.35);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-color: rgba(255,255,255,0.2);
    color: #FFF;
}

/* ===== Footer ===== */
.footer {
    text-align: center; padding: 24px;
    color: var(--text-secondary); font-size: 13px;
    border-top: 1px solid var(--border); margin-top: 40px;
}
.footer a { color: var(--primary); }
.footer a:hover { text-decoration: underline; }

/* ===== 搜索引擎下拉面板 ===== */
.engine-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    width: 150px;
    background: rgba(255,255,255,0.72);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 14px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.5);
}
.engine-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.engine-dropdown-list {
    padding: 6px;
    max-height: 320px;
    overflow-y: auto;
}

.engine-option {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 10px 14px;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s;
    text-align: left;
}
.engine-option:hover {
    background: rgba(79,70,229,0.08);
}
.engine-option.active {
    background: rgba(15,23,42,0.35);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: #FFF;
}
.eng-icon-fa {
    width: 20px;
    text-align: center;
    font-size: 16px;
    color: var(--primary);
    flex-shrink: 0;
}
.engine-option.active .eng-icon-fa {
    color: rgba(255,255,255,0.9);
}
.eng-icon-img {
    width: 20px;
    height: 20px;
    object-fit: contain;
    flex-shrink: 0;
}
.eng-icon-emoji {
    font-size: 18px;
    line-height: 1;
    flex-shrink: 0;
}
.engine-option span {
    flex: 1;
    font-weight: 500;
}
.engine-option.active .eng-icon-img,
.engine-option.active .eng-icon-emoji { }

[data-theme="dark"] .engine-dropdown {
    background: rgba(30,41,59,0.78);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.4);
    border-color: rgba(255,255,255,0.1);
}
[data-theme="dark"] .engine-option:hover {
    background: rgba(99,102,241,0.12);
}
[data-theme="dark"] .engine-option.active {
    background: rgba(2,6,23,0.4);
    color: #F1F5F9;
}
[data-theme="dark"] .engine-option.active .eng-icon-fa {
    color: #818CF8;
}
[data-theme="dark"] .btn-primary {
    background: rgba(2,6,23,0.4);
    color: #F1F5F9;
}

[data-theme="dark"] body { background: var(--bg); }
[data-theme="dark"] .search-box { box-shadow: 0 4px 20px rgba(0,0,0,0.3); }
[data-theme="dark"] .modal-box {
    background: rgba(15,23,42,0.8);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
[data-theme="dark"] .modal-overlay {
    background: rgba(0,0,0,0.35);
}
[data-theme="dark"] .form-group label {
    color: rgba(255,255,255,0.55);
}
[data-theme="dark"] .form-control {
    background: rgba(255,255,255,0.06);
    border-color: rgba(255,255,255,0.1);
    color: #F1F5F9;
}
[data-theme="dark"] .form-control:focus {
    background: rgba(255,255,255,0.1);
    border-color: #818CF8;
    box-shadow: 0 0 0 3px rgba(129,140,248,0.15);
}
[data-theme="dark"] .form-control optgroup,
[data-theme="dark"] .form-control option {
    background: #1E293B;
    color: #F1F5F9;
}
[data-theme="dark"] .btn-outline {
    background: rgba(255,255,255,0.06);
    border-color: rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.6);
}
[data-theme="dark"] .btn-outline:hover {
    background: rgba(2,6,23,0.4);
    border-color: rgba(255,255,255,0.2);
    color: #F1F5F9;
}
[data-theme="dark"] .form-error { background: rgba(239,68,68,0.1); }
[data-theme="dark"] .datetime-lunar { opacity: 0.5; }

/* ===== 回到顶部（带进度环） ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 100;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: #FFF;
    border: none;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(79,70,229,0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 24px rgba(79,70,229,0.4);
}
.back-to-top::before {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: conic-gradient(var(--primary) calc(var(--scroll-progress, 0) * 1%), rgba(255,255,255,0.15) 0%);
    -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #fff calc(100% - 2px));
    mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #fff calc(100% - 2px));
    pointer-events: none;
}

/* ===== 底部快捷收藏栏（磨砂半透明固定底部） ===== */
.quick-bar {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    max-width: 1200px;
    width: 100%;
    z-index: 90;
    padding: 0 24px 16px;
    pointer-events: none;
    display: flex;
    justify-content: center;
}
.quick-bar-inner {
    background: rgba(0, 0, 0, calc(var(--quick-bar-glass-opacity, 15) / 100));
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 18px;
    padding: 10px 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
    border: 1px solid rgba(255,255,255,0.5);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 72px;
    overflow: visible;
    pointer-events: auto;
}

.quick-bar-item {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.2s;
    text-decoration: none;
    overflow: visible;
}
.quick-bar-item img {
    width: 45px;
    height: 45px;
    max-width: 45px;
    max-height: 45px;
    object-fit: contain;
    border-radius: var(--card-radius);
}
.quick-bar-item i,
.quick-bar-item span.emoji-txt {
    width: 45px;
    height: 45px;
    max-width: 45px;
    max-height: 45px;
    font-size: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    background: var(--qb-bg, transparent);
    border-radius: var(--card-radius);
    transition: background 0.2s;
}
.quick-bar-item:hover {
    transform: translateY(-2px);
}
.quick-bar-item:hover i,
.quick-bar-item:hover span.emoji-txt {
    color: var(--primary);
    background: var(--qb-bg, var(--bg));
}
.quick-bar-item:hover img {
    color: var(--primary);
}
.quick-bar-item[style*="--qb-bg"]:hover i,
.quick-bar-item[style*="--qb-bg"]:hover span.emoji-txt {
    filter: brightness(1.1);
}

.quick-bar-item .quick-bar-label {
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    background: #3b371e;
    color: #FFF;
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 5px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}
.quick-bar-item:hover .quick-bar-label {
    opacity: 1;
}

.quick-bar-divider {
    width: 1px;
    height: 24px;
    background: var(--border);
    flex-shrink: 0;
}

/* 拖拽提示文字（默认隐藏） */
.quick-bar-hint {
    display: none;
    font-size: 14px;
    color: #fff;
    white-space: nowrap;
    padding: 0 16px;
    align-items: center;
    gap: 6px;
}
.quick-bar-dragover .quick-bar-item,
.quick-bar-dragover .quick-bar-empty {
    display: none;
}
.quick-bar-dragover .quick-bar-hint {
    display: inline-flex;
}
.quick-bar-dragover .quick-bar-inner {
    padding: 10px 24px;
    min-width: 280px;
    justify-content: center;
}

.quick-bar-empty {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    border: 1.5px dashed var(--text-secondary);
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 300;
    color: var(--text-secondary);
    cursor: default;
    transition: all 0.2s;
    flex-shrink: 0;
    padding: 0;
    line-height: 1;
}
.quick-bar-inner .card-wrap {
    width: 52px !important;
    height: 52px !important;
    min-width: 52px !important;
    max-width: 52px !important;
    aspect-ratio: unset !important;
    overflow: hidden;
    border-radius: 50%;
    box-shadow: none;
}
.quick-bar-inner .card-wrap .card-icon-block-img {
    transform: scale(0.35);
    transform-origin: center center;
    border-radius: inherit;
}
.quick-bar-inner .card-wrap .card-icon-block-name {
    display: none;
}

.quick-bar-empty:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--bg);
}

/* ===== 快捷栏移除按钮（默认隐藏，右键后显示） ===== */
.quick-bar-remove {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: none;
    background: #EF4444;
    color: #fff;
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s, transform 0.2s;
    z-index: 10;
    padding: 0;
}
.quick-bar-item.show-remove .quick-bar-remove {
    opacity: 1;
    pointer-events: auto;
}
.quick-bar-remove:hover {
    background: #DC2626;
    transform: scale(1.15);
}

/* ===== 快捷栏拖拽中状态 ===== */
.quick-bar-item.dragging {
    opacity: 0.4;
}
.quick-bar-item.drag-over {
    transform: scale(1.08);
    background: var(--qb-bg, var(--bg));
}

[data-theme="dark"] .quick-bar-inner {
    background: rgba(30, 41, 59, 0.7);
    border-color: rgba(51, 65, 85, 0.5);
}

/* ===== 移动端底部分类标签栏（默认隐藏，≤768px 显示） ===== */
.mobile-cat-tabs {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 80;
    padding: 8px 12px calc(env(safe-area-inset-bottom, 8px) + 8px);
    background: rgba(255,255,255,0.25);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--border);
    overflow-x: auto;
    overflow-y: hidden;
    gap: 6px;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    align-items: center;
}
.mobile-cat-tabs::-webkit-scrollbar { display: none; }
[data-theme="dark"] .mobile-cat-tabs {
    background: rgba(15,23,42,0.85);
    border-top-color: #334155;
}

.m-cat-tab {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid transparent;
    font-size: 13px;
    font-weight: 500;
    background: transparent;
    color: #FFF;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    line-height: 1.3;
}
.m-cat-tab:hover {
    background: rgba(79,70,229,0.08);
    color: var(--primary);
}
.m-cat-tab.active {
    background: #03030347;
    color: #FFF;
    border-color: #FFF;
}
.m-cat-tab i,
.m-cat-tab .m-cat-tab-img {
    font-size: 16px;
    width: 18px;
    height: 18px;
    object-fit: contain;
}
.m-cat-tab-add {
    border-color: var(--border);
    font-size: 12px;
    gap: 2px;
}
.m-cat-tab-add:hover {
    background: #10B981;
    color: #FFF;
    border-color: #10B981;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    /* 移动端头部只有搜索框（日期已隐藏），顶部 padding 给固定搜索框让出空间 */
    .main { padding: 92px 16px 70px; }
    .header-fixed { padding: 12px 16px 20px; }
    .datetime-section { display: none; }
    .search-box { border-radius: 16px; }
    .datetime-time { font-size: 42px; }
    .admin-entry-btn { display: none; }
    .back-to-top { bottom: 80px; right: 20px; width: 38px; height: 38px; }
    .category-section { scroll-margin-top: 180px; }
    .search-inner .admin-entry-inline { display: flex; }
    /* 移动端 links-section 由 flex:1 自动占满头部与底部之间的剩余空间，无需写死高度 */
    /* 移动端隐藏底部快捷栏 */
    .quick-bar { display: none !important; }
    /* 移动端显示底部分类标签栏 */
    .mobile-cat-tabs {
        display: flex;
    }
}

/* ===== 右键毛玻璃菜单 ===== */
.context-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(0,0,0,0.35);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: none;
    align-items: flex-start;
    justify-content: flex-start;
}
.context-menu {
    position: absolute;
    background: rgba(255,255,255,0.72);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 14px;
    padding: 8px 0;
    min-width: 200px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    border: 1px solid rgba(255,255,255,0.5);
    user-select: none;
    overflow: visible;
}
.context-menu-item {
    padding: 10px 18px;
    font-size: 14px;
    color: #1E293B;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    position: relative;
    transition: background 0.15s;
}
.context-menu-item:hover {
    background: rgba(79,70,229,0.08);
}
.context-menu-item .ctx-icon {
    font-size: 16px;
    width: 20px;
    text-align: center;
}
.context-menu-item .ctx-arrow {
    margin-left: auto;
    font-size: 10px;
    color: #94A3B8;
}
.context-menu-separator {
    height: 1px;
    background: rgba(0,0,0,0.08);
    margin: 4px 12px;
}

/* 子菜单（移动至分类） */
.ctx-submenu {
    display: none;
    position: absolute;
    left: 100%;
    top: -4px;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 12px;
    padding: 6px 0;
    min-width: 140px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    border: 1px solid rgba(255,255,255,0.4);
    z-index: 10001;
}
.context-menu-item:hover .ctx-submenu {
    display: block;
}
.ctx-submenu-item {
    padding: 8px 16px;
    font-size: 13px;
    color: #334155;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s;
}
.ctx-submenu-item:hover {
    background: rgba(79,70,229,0.08);
    color: #4F46E5;
}

[data-theme="dark"] .context-menu {
    background: rgba(30,41,59,0.78);
    border-color: rgba(255,255,255,0.1);
}
[data-theme="dark"] .context-menu-item {
    color: #E2E8F0;
}
[data-theme="dark"] .context-menu-item:hover {
    background: rgba(99,102,241,0.12);
}
[data-theme="dark"] .context-menu-separator {
    background: rgba(255,255,255,0.08);
}
[data-theme="dark"] .ctx-submenu {
    background: rgba(30,41,59,0.85);
    border-color: rgba(255,255,255,0.08);
}
[data-theme="dark"] .ctx-submenu-item {
    color: #CBD5E1;
}
[data-theme="dark"] .ctx-submenu-item:hover {
    background: rgba(99,102,241,0.12);
}

/* ===== 批量删除模式 ===== */
body.batch-delete-mode .card-wrap {
    position: relative;
}
body.batch-delete-mode .card-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--card-radius, 12px);
    pointer-events: none;
    z-index: 1;
}
.batch-delete-btn {
    display: none;
    position: absolute;
    top: 4px;
    right: 4px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: none;
    background: #EF4444;
    color: #fff;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(239,68,68,0.4);
    transition: transform 0.15s;
    align-items: center;
    justify-content: center;
    padding: 0;
}
.batch-delete-btn:hover {
    transform: scale(1.15);
}
body.batch-delete-mode .batch-delete-btn {
    display: flex;
}

/* ===== SortableJS 拖拽占位效果 ===== */
.sortable-ghost {
    opacity: 0.4 !important;
    border: 2px dashed var(--primary, #4F46E5) !important;
    border-radius: var(--card-radius, 12px) !important;
    background: rgba(79,70,229,0.06) !important;
    transform: scale(0.92) !important;
    transition: all 0.2s ease !important;
}
.sortable-chosen {
    opacity: 0.8 !important;
}
.sortable-drag {
    opacity: 0.95 !important;
    box-shadow: 0 8px 32px rgba(0,0,0,0.15) !important;
    transform: scale(1.03) !important;
    border-radius: var(--card-radius, 12px) !important;
}

/* 右键菜单：小屏适配（子菜单改为弹出到右侧，避免溢出） */
@media (max-width: 768px) {
    .context-menu {
        min-width: 180px;
    }
    .ctx-submenu {
        left: auto;
        right: 100%;
        top: -4px;
    }
}

/* ===== 透明导航背景兜底：cat-nav-item active/hover 固定半透明深色 ===== */
body[data-nav-bg-transparent="1"] .cat-nav-item.active,
body[data-nav-bg-transparent="1"] .cat-nav-item:hover {
    background: #03030347;
}