/* ==========================================================================
   双层次梯形切口文件夹折叠框 (Seamless Folder Accordion Component)
   Shared design system component for collapsible document/log sections.
   ========================================================================== */

.director-folder-accordion {
    background: #0a0b0e;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
    margin-top: 2.5rem;
    margin-bottom: 3rem;
}

.director-folder-accordion details {
    width: 100%;
}

.director-folder-accordion summary {
    list-style: none;
    outline: none;
    cursor: pointer;
    user-select: none;
    position: relative;
    background: linear-gradient(135deg, #0a251a 0%, #154c37 55%, #2a7a58 100%);
    padding-top: 3.6rem;
    overflow: hidden;
}

.director-folder-accordion summary::-webkit-details-marker {
    display: none;
}

.folder-tab-bar {
    background: #0a0b0e;
    position: relative;
    margin-top: -1.8rem;
    padding: 0.8rem 1.6rem 0.85rem 1.6rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    border-top-right-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.folder-tab-bar::before {
    content: '';
    position: absolute;
    top: -18px;
    left: 0;
    width: 250px;
    height: 20px;
    background: #0a0b0e;
    clip-path: path("M 0 20 L 0 6 A 6 6 0 0 1 6 0 L 195 0 A 10 10 0 0 1 204 4.5 L 218 20 Z");
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    z-index: 1;
}

.folder-title-group {
    display: flex;
    flex-direction: column;
    justify-content: center;
    z-index: 2;
}

.trapezoid-label {
    font-size: 0.64rem;
    font-weight: 700;
    color: #4ea57f;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    line-height: 1;
    margin-bottom: 0.2rem;
}

.folder-main-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.01em;
    line-height: 1.25;
}

.folder-action-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    z-index: 2;
}

.action-chip {
    font-family: monospace;
    font-size: 0.78rem;
    color: #e3d6c3;
    background: rgba(227, 214, 195, 0.1);
    padding: 0.3rem 0.8rem;
    border-radius: 12px;
    border: 1px solid rgba(227, 214, 195, 0.25);
}

.toggle-indicator {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ffffff;
    padding: 0.45rem 1.1rem;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
    transition: all 0.25s ease;
}

.director-folder-accordion details:not([open]) .toggle-text::after {
    content: "点击展开";
}

.director-folder-accordion details[open] .toggle-text::after {
    content: "点击收起";
}

.director-folder-accordion summary:hover .toggle-indicator {
    background: #4ea57f;
    border-color: #4ea57f;
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(78, 165, 127, 0.4);
}

.toggle-arrow {
    font-size: 0.75rem;
    transition: transform 0.3s ease;
}

.director-folder-accordion details[open] .toggle-arrow {
    transform: rotate(180deg);
}

.folder-doc-content {
    padding: 2rem 2.2rem;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.95rem;
    line-height: 1.8;
    background: #0a0b0e;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}