/* PRTS 前端筛选栏 + 下拉面板 */
.pf-filter-bar {
    position: relative;
    z-index: 50;
    background: rgba(128, 128, 128, 0.12);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 15px;
    margin-bottom: 25px;
}
.pf-filter-bar__control {
    display: inline-block;
    position: relative;
    margin-right: 15px;
    vertical-align: top;
}
.pf-filter-bar__input {
    padding: 8px 12px;
    border: 1px solid rgba(128, 128, 128, 0.35);
    font-size: 14px;
    width: 200px;
    box-sizing: border-box;
    background: rgba(128, 128, 128, 0.15);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: inherit;
    outline: none;
    border-radius: 0;
    resize: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    transition: background 0.2s, border-color 0.2s;
}
.pf-filter-bar__input:hover,
.pf-filter-bar__input:focus {
    background: rgba(128, 128, 128, 0.25);
    border-color: rgba(128, 128, 128, 0.5);
}
.pf-dropdown-btn {
    padding: 8px 12px;
    border: 1px solid rgba(128, 128, 128, 0.35);
    font-size: 14px;
    width: 200px;
    box-sizing: border-box;
    background: rgba(128, 128, 128, 0.15);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: inherit;
    cursor: pointer;
    text-align: left;
    outline: none;
    border-radius: 0;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    transition: background 0.2s, border-color 0.2s;
}
.pf-dropdown-btn:hover {
    background: rgba(128, 128, 128, 0.25);
    border-color: rgba(128, 128, 128, 0.5);
}
@keyframes pfFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.pf-dropdown-panel {
    display: none;
    position: absolute;
    min-width: 200px;
    max-height: 240px;
    overflow-y: auto;
    z-index: 100;
    border: 1px solid rgba(128, 128, 128, 0.2);
    background: rgba(30, 30, 30, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    animation: pfFadeIn 0.2s ease-out;
}
.pf-dropdown-panel__item {
    padding: 10px 12px;
    cursor: pointer;
    font-size: 13px;
    color: #ddd;
    border-bottom: 1px solid rgba(128, 128, 128, 0.15);
}
.pf-dropdown-panel__item:hover {
    background: rgba(128, 128, 128, 0.2);
}
.pf-filter-bar__autocomplete-list {
    position: absolute;
    border: 1px solid rgba(128, 128, 128, 0.3);
    z-index: 99;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 200px;
    overflow-y: auto;
    background: rgba(30, 30, 30, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    animation: pfFadeIn 0.2s ease-out;
}
.pf-filter-bar__autocomplete-list div {
    padding: 10px;
    cursor: pointer;
    border-bottom: 1px solid rgba(128, 128, 128, 0.2);
    font-size: 13px;
    color: #ddd;
}
.pf-filter-bar__autocomplete-list div:hover {
    background: rgba(128, 128, 128, 0.2);
}
.pf-dropdown-panel::-webkit-scrollbar,
.pf-filter-bar__autocomplete-list::-webkit-scrollbar {
    width: 6px;
}
.pf-dropdown-panel::-webkit-scrollbar-track,
.pf-filter-bar__autocomplete-list::-webkit-scrollbar-track {
    background: rgba(128, 128, 128, 0.1);
}
.pf-dropdown-panel::-webkit-scrollbar-thumb,
.pf-filter-bar__autocomplete-list::-webkit-scrollbar-thumb {
    background: rgba(128, 128, 128, 0.35);
}
.pf-dropdown-panel::-webkit-scrollbar-thumb:hover,
.pf-filter-bar__autocomplete-list::-webkit-scrollbar-thumb:hover {
    background: rgba(128, 128, 128, 0.5);
}

@media (max-width: 550px) {
    .pf-filter-bar__control {
        display: block;
        margin-right: 0;
        width: 100%;
    }
    .pf-filter-bar__input,
    .pf-dropdown-btn {
        width: 100%;
    }
}