/* “文章目录树-新”：基于本地 rag-toc-tree-replica 的目录树视觉与交互。 */
.zibll-child-article-toc-tree {
    --zctoc-active: #0e7490;
    --zctoc-panel-bg: var(--main-bg-color, #fff);
    --zctoc-panel-text: var(--main-color, #4e5358);
    --zctoc-panel-muted: var(--muted-color, #777);
    --zctoc-panel-hover: var(--muted-border-color, rgba(78, 83, 88, 0.08));
    --zctoc-line: var(--main-border-color, rgba(78, 83, 88, 0.16));
    --zctoc-dot: var(--muted-2-color, #999);
    --zctoc-radius-large: 12px;
    --zctoc-radius-medium: 8px;
    --zctoc-radius-small: 4px;
    --zctoc-mobile-top: 76px;
    position: relative;
    color: var(--zctoc-panel-text);
    font-family: inherit;
}

.zibll-child-article-toc-tree.is-theme-accent {
    --zctoc-active: var(--focus-color, var(--theme-color, #0e7490));
}

body.dark-theme .zibll-child-article-toc-tree,
.dark-theme .zibll-child-article-toc-tree,
html.dark .zibll-child-article-toc-tree {
    --zctoc-active: #67e8f9;
    --zctoc-panel-bg: var(--main-bg-color, #323335);
    --zctoc-panel-text: var(--main-color, #d8d8d8);
    --zctoc-panel-muted: var(--muted-color, #aaa);
    --zctoc-panel-hover: var(--muted-border-color, rgba(255, 255, 255, 0.1));
    --zctoc-line: var(--main-border-color, rgba(255, 255, 255, 0.14));
    --zctoc-dot: var(--muted-2-color, #999);
}

body.dark-theme .zibll-child-article-toc-tree.is-theme-accent,
.dark-theme .zibll-child-article-toc-tree.is-theme-accent,
html.dark .zibll-child-article-toc-tree.is-theme-accent {
    --zctoc-active: var(--focus-color, var(--theme-color, #67e8f9));
}

.zibll-child-article-toc-tree.is-pending {
    opacity: 0;
    pointer-events: none;
}

.zibll-child-article-toc-tree[hidden] {
    display: none !important;
}

.zctoc-panel {
    display: flex;
    width: 100%;
    max-height: min(40rem, calc(100vh - var(--zctoc-mobile-top, 80px) - 24px));
    overflow: visible;
    flex-direction: column;
    color: var(--zctoc-panel-text);
    background: var(--zctoc-panel-bg);
    border: 0;
    border-radius: var(--zctoc-radius-large);
    box-shadow: none;
}

.zctoc-panel__toolbar {
    position: relative;
    z-index: 3;
    display: flex;
    flex: none;
    align-items: center;
    gap: 2px;
    padding: 8px 12px;
}

.zctoc-panel__tool-btn,
.zctoc-panel__mobile-close,
.zctoc-mindmap__tool-btn,
.zctoc-panel__link,
.zctoc-panel__toggle,
.zctoc-dock-btn,
.zctoc-mindmap__minimap,
.zctoc-mindmap__branch-toggle,
.zctoc-mindmap__node {
    appearance: none;
    -webkit-appearance: none;
    font: inherit;
}

.zctoc-panel__tool-btn {
    position: relative;
    display: grid;
    width: 27px;
    height: 27px;
    padding: 0;
    place-items: center;
    color: var(--zctoc-panel-muted);
    cursor: pointer;
    background: transparent;
    border: 0;
    border-radius: var(--zctoc-radius-medium);
    transition: color 0.16s ease, background-color 0.16s ease, transform 0.16s ease;
}

.zctoc-panel__tool-btn:hover,
.zctoc-panel__tool-btn:focus-visible {
    z-index: 20;
    color: var(--zctoc-panel-text);
    background: var(--zctoc-panel-hover);
}

.zctoc-panel__tool-btn:active {
    transform: scale(0.92);
}

.zctoc-panel__tool-btn[data-zctoc-auto-btn][aria-pressed="true"] {
    color: var(--zctoc-active);
    background: var(--zctoc-panel-hover);
}

.zctoc-panel__tool-btn svg,
.zctoc-panel__tool-icon,
.zctoc-panel__tool-icon svg {
    display: block;
    width: 16px;
    height: 16px;
}

.zctoc-panel__tool-btn .zctoc-panel__tool-icon.is-collapse,
.zctoc-panel__tool-btn[aria-pressed="true"] .zctoc-panel__tool-icon.is-expand {
    display: none;
}

.zctoc-panel__tool-btn[aria-pressed="true"] .zctoc-panel__tool-icon.is-collapse {
    display: block;
}

.zctoc-panel__tool-btn::after {
    position: absolute;
    top: 50%;
    left: calc(100% + 8px);
    z-index: 15;
    padding: 4px 8px;
    color: var(--zctoc-panel-bg);
    font-size: 11px;
    line-height: 1.3;
    white-space: nowrap;
    content: attr(data-tooltip);
    visibility: hidden;
    pointer-events: none;
    background: var(--zctoc-panel-text);
    border-radius: var(--zctoc-radius-small);
    opacity: 0;
    transform: translate(-4px, -50%);
    transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s ease;
}

.zctoc-panel__tool-btn:hover::after,
.zctoc-panel__tool-btn:focus-visible::after {
    visibility: visible;
    opacity: 1;
    transform: translate(0, -50%);
}

.zctoc-mindmap__tool-btn::after {
    position: absolute;
    top: 50%;
    right: calc(100% + 8px);
    z-index: 15;
    padding: 4px 8px;
    color: var(--zctoc-panel-bg);
    font-size: 11px;
    line-height: 1.3;
    white-space: nowrap;
    content: attr(data-tooltip);
    visibility: hidden;
    pointer-events: none;
    background: var(--zctoc-panel-text);
    border-radius: var(--zctoc-radius-small);
    opacity: 0;
    transform: translate(4px, -50%);
    transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s ease;
}

.zctoc-mindmap__tool-btn:hover::after,
.zctoc-mindmap__tool-btn:focus-visible::after {
    visibility: visible;
    opacity: 1;
    transform: translate(0, -50%);
}

.zctoc-panel__progress {
    display: flex;
    align-items: center;
    margin-left: auto;
    padding-right: 4px;
    color: var(--zctoc-panel-muted);
    font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
    font-size: 12px;
}

.zctoc-panel__progress-label {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.zctoc-panel__mobile-close {
    display: none;
    width: 27px;
    height: 27px;
    padding: 0;
    color: var(--zctoc-panel-muted);
    cursor: pointer;
    background: transparent;
    border: 0;
    border-radius: var(--zctoc-radius-medium);
}

.zctoc-panel__mobile-close svg {
    width: 17px;
    height: 17px;
}

.zctoc-panel__tree {
    position: relative;
    flex: auto;
    min-height: 0;
    padding: 8px 0 12px;
    overflow: hidden auto;
    overscroll-behavior-y: contain;
    scrollbar-width: thin;
    scrollbar-color: var(--zctoc-line) transparent;
}

.zctoc-panel__tree::-webkit-scrollbar,
.zctoc-mindmap__canvas::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.zctoc-panel__tree::-webkit-scrollbar-thumb,
.zctoc-mindmap__canvas::-webkit-scrollbar-thumb {
    background: var(--zctoc-line);
    border-radius: 3px;
}

.zctoc-panel__lines {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
    overflow: visible;
    pointer-events: none;
}

.zctoc-panel__line {
    fill: none;
    stroke: var(--zctoc-line);
    stroke-width: 1.5px;
    transition: stroke 0.16s ease, opacity 0.16s ease;
}

.zctoc-panel__line.is-hover-trail {
    stroke: var(--zctoc-active);
    opacity: 0.55;
}

.zctoc-panel__line.is-active-trail {
    stroke: var(--zctoc-active);
}

.zctoc-panel__list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.zctoc-panel__item {
    min-width: 0;
}

.zctoc-panel__row {
    position: relative;
    z-index: 1;
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 5px;
    padding: 4px 8px;
    padding-left: calc(12px + var(--zctoc-level, 0) * 15px);
    border-radius: var(--zctoc-radius-medium);
    transition: background-color 0.16s ease;
}

.zctoc-panel__row:hover,
.zctoc-panel__row:focus-within {
    background: var(--zctoc-panel-hover);
}

.zctoc-panel__link {
    display: inline-flex;
    flex: 0 auto;
    min-width: 0;
    max-width: 100%;
    padding: 0;
    align-items: center;
    gap: 8px;
    color: var(--zctoc-panel-muted);
    font-size: 13px;
    line-height: 1.5;
    text-align: left;
    text-decoration: none !important;
    cursor: pointer;
    background: transparent;
    border: 0;
    transition: color 0.16s ease;
}

.zctoc-panel__row--root .zctoc-panel__link {
    color: var(--zctoc-panel-text);
    font-weight: 700;
}

.zctoc-panel__row:hover .zctoc-panel__link,
.zctoc-panel__row:focus-within .zctoc-panel__link {
    color: var(--zctoc-panel-text);
}

.zctoc-panel__row.is-active .zctoc-panel__link {
    color: var(--zctoc-active);
    font-weight: 650;
}

.zctoc-panel__link:focus-visible,
.zctoc-panel__toggle:focus-visible,
.zctoc-panel__tool-btn:focus-visible,
.zctoc-panel__mobile-close:focus-visible,
.zctoc-dock-btn:focus-visible,
.zctoc-mindmap__tool-btn:focus-visible,
.zctoc-mindmap__minimap:focus-visible,
.zctoc-mindmap__branch-toggle:focus-visible,
.zctoc-mindmap__node:focus-visible {
    outline: 1px solid var(--zctoc-active) !important;
    outline-offset: 2px !important;
}

.zctoc-panel__text {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.zctoc-panel__dot {
    box-sizing: border-box;
    flex: none;
    width: 9px;
    height: 9px;
    background: var(--zctoc-panel-bg);
    border: 1.5px solid var(--zctoc-dot);
    border-radius: 999px;
    transition: border-color 0.16s ease, background-color 0.16s ease;
}

.zctoc-panel__row[data-zctoc-level="2"] .zctoc-panel__dot {
    width: 7px;
    height: 7px;
}

.zctoc-panel__row[data-zctoc-level="3"] .zctoc-panel__dot,
.zctoc-panel__row[data-zctoc-level="4"] .zctoc-panel__dot,
.zctoc-panel__row[data-zctoc-level="5"] .zctoc-panel__dot {
    width: 6px;
    height: 6px;
}

.zctoc-panel__row--root .zctoc-panel__dot {
    background: var(--zctoc-active);
    border-color: var(--zctoc-active);
}

.zctoc-panel__row.is-active > .zctoc-panel__link .zctoc-panel__dot {
    border-color: var(--zctoc-active);
}

.zctoc-panel__toggle {
    display: grid;
    flex: none;
    width: 22px;
    height: 22px;
    padding: 0;
    place-items: center;
    color: var(--zctoc-panel-muted);
    cursor: pointer;
    background: transparent;
    border: 0;
    border-radius: var(--zctoc-radius-medium);
    transition: color 0.16s ease, background-color 0.16s ease;
}

.zctoc-panel__toggle:hover,
.zctoc-panel__toggle:focus-visible {
    color: var(--zctoc-panel-text);
    background: var(--zctoc-panel-hover);
}

.zctoc-panel__toggle::before {
    width: 5px;
    height: 5px;
    content: "";
    border-right: 1.5px solid;
    border-bottom: 1.5px solid;
    transition: transform 0.16s ease;
    transform: rotate(45deg) translate(-10%, -10%);
}

.zctoc-panel__toggle[aria-expanded="false"]::before {
    transform: rotate(-45deg) translate(-10%, -10%);
}

.zctoc-panel__children {
    display: grid;
    grid-template-rows: 1fr;
    transition: grid-template-rows 0.22s ease;
}

.zctoc-panel__children > .zctoc-panel__list {
    min-height: 0;
    overflow: hidden;
}

.zctoc-panel__row.is-collapsed + .zctoc-panel__children {
    grid-template-rows: 0fr;
}

.zctoc-dock-btn {
    position: fixed;
    right: max(20px, env(safe-area-inset-right));
    bottom: max(20px, env(safe-area-inset-bottom));
    z-index: 10020;
    display: none;
    width: 50px;
    height: 50px;
    align-items: center;
    justify-content: center;
    padding: 0;
    color: var(--zctoc-panel-text);
    cursor: pointer;
    background: var(--zctoc-panel-bg);
    border: 2px solid var(--zctoc-panel-text);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.zctoc-dock-btn:hover,
.zctoc-dock-btn[aria-expanded="true"] {
    color: var(--zctoc-panel-bg);
    background: var(--zctoc-panel-text);
    border-color: var(--zctoc-panel-bg);
    transform: translateY(-2px);
}

.zctoc-dock-btn svg {
    width: 26px;
    height: 26px;
}

/* 思维导图 */
.zctoc-mindmap {
    --zctoc-map-bg: var(--zctoc-panel-bg);
    --zctoc-map-text: var(--zctoc-panel-text);
    --zctoc-map-muted: var(--zctoc-panel-muted);
    --zctoc-map-hover: var(--zctoc-panel-hover);
    --zctoc-map-line: var(--zctoc-line);
    --zctoc-map-active: var(--zctoc-active);
    --zctoc-map-canvas: var(--muted-bg-2-color, #f6f7f8);
    --zctoc-map-card: var(--main-bg-color, #fff);
    --zctoc-map-shadow: rgba(36, 42, 48, 0.12);
    position: fixed;
    inset: 0;
    z-index: 100050;
    width: 100%;
    max-width: none;
    height: 100%;
    max-height: none;
    padding: 0;
    color: var(--zctoc-map-text);
    background: transparent;
    border: 0;
}

body.dark-theme .zctoc-mindmap,
.dark-theme .zctoc-mindmap,
html.dark .zctoc-mindmap {
    --zctoc-map-canvas: var(--muted-bg-2-color, #25272a);
    --zctoc-map-card: var(--main-bg-color, #323335);
    --zctoc-map-shadow: rgba(0, 0, 0, 0.34);
}

.zctoc-mindmap::backdrop {
    background: transparent;
}

.zctoc-mindmap__overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 14, 20, 0.54);
    backdrop-filter: saturate(1.2) blur(8px);
    -webkit-backdrop-filter: saturate(1.2) blur(8px);
}

.zctoc-mindmap__panel {
    position: absolute;
    inset: 0;
    display: flex;
    width: min(96vw, 120rem);
    height: min(92vh, 72rem);
    margin: auto;
    overflow: hidden;
    flex-direction: column;
    background: var(--zctoc-map-bg);
    border: 1px solid var(--zctoc-map-line);
    border-radius: 18px;
    box-shadow: 0 30px 100px rgba(0, 0, 0, 0.34), 0 2px 12px rgba(0, 0, 0, 0.12);
    animation: zctoc-dialog-in 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes zctoc-dialog-in {
    from { opacity: 0; transform: scale(0.97) translateY(8px); }
    to { opacity: 1; transform: none; }
}

.zctoc-mindmap__header {
    position: relative;
    z-index: 5;
    display: flex;
    flex: none;
    align-items: center;
    justify-content: space-between;
    min-height: 58px;
    padding: 9px 12px 9px 18px;
    background: var(--zctoc-map-bg);
    border-bottom: 1px solid var(--zctoc-map-line);
}

.zctoc-mindmap__title-group {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 1px;
}

.zctoc-mindmap__heading {
    color: var(--zctoc-map-text);
    font-size: 15px;
    font-weight: 750;
    letter-spacing: 0.01em;
}

.zctoc-mindmap__meta {
    overflow: hidden;
    color: var(--zctoc-map-muted);
    font-size: 11px;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.zctoc-mindmap__tools {
    display: flex;
    align-items: center;
    gap: 3px;
}

.zctoc-mindmap__tool-group {
    display: flex;
    align-items: center;
    padding: 2px;
    background: var(--zctoc-map-hover);
    border: 1px solid var(--zctoc-map-line);
    border-radius: 10px;
}

.zctoc-mindmap__tool-divider {
    width: 1px;
    height: 20px;
    margin: 0 3px;
    background: var(--zctoc-map-line);
}

.zctoc-mindmap__zoom-value {
    min-width: 46px;
    color: var(--zctoc-map-text);
    font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
    font-size: 11px;
    font-variant-numeric: tabular-nums;
    line-height: 1;
    text-align: center;
}

.zctoc-mindmap__tool-btn {
    position: relative;
    display: grid;
    width: 31px;
    height: 31px;
    padding: 0;
    place-items: center;
    color: var(--zctoc-map-muted);
    cursor: pointer;
    background: transparent;
    border: 0;
    border-radius: 9px;
    transition: color 0.18s ease, background-color 0.18s ease, transform 0.18s ease;
}

.zctoc-mindmap__tool-btn:hover,
.zctoc-mindmap__tool-btn:focus-visible {
    color: var(--zctoc-map-text);
    background: var(--zctoc-map-hover);
    transform: translateY(-1px);
}

.zctoc-mindmap__tool-btn:active {
    transform: scale(0.92);
}

.zctoc-mindmap__tool-btn svg,
.zctoc-mindmap__fs-icon,
.zctoc-mindmap__fs-icon svg {
    display: block;
    width: 16px;
    height: 16px;
}

.zctoc-mindmap__tool-btn .zctoc-mindmap__fs-icon.is-exit,
.zctoc-mindmap__panel:fullscreen .zctoc-mindmap__fs-icon.is-enter {
    display: none;
}

.zctoc-mindmap__panel:fullscreen .zctoc-mindmap__fs-icon.is-exit {
    display: block;
}

.zctoc-mindmap__panel:fullscreen {
    width: 100vw;
    height: 100vh;
    border: 0;
    border-radius: 0;
}

.zctoc-mindmap__canvas {
    position: relative;
    flex: auto;
    min-height: 0;
    overflow: auto;
    cursor: grab;
    background-color: var(--zctoc-map-canvas);
    background-image: radial-gradient(circle, var(--zctoc-map-line) 1px, transparent 1.25px);
    background-position: 0 0;
    background-size: 24px 24px;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

.zctoc-mindmap__canvas.is-panning {
    cursor: grabbing;
}

.zctoc-mindmap__lines {
    position: absolute;
    top: 0;
    left: 0;
    overflow: visible;
    pointer-events: none;
}

.zctoc-mindmap__line {
    fill: none;
    stroke: var(--zctoc-map-line);
    stroke-linecap: round;
    stroke-width: 1.7px;
    transition: stroke 0.18s ease, stroke-width 0.18s ease, opacity 0.18s ease;
}

.zctoc-mindmap__line.is-active {
    stroke: var(--zctoc-map-active);
    stroke-width: 2.4px;
}

.zctoc-mindmap__line.is-current {
    stroke: var(--zctoc-map-active);
    stroke-width: 2.2px;
    opacity: 0.8;
}

.zctoc-mindmap__mount {
    display: contents;
}

.zctoc-mindmap__tree {
    position: relative;
    z-index: 1;
    display: flex;
    box-sizing: border-box;
    width: max-content;
    min-width: 100%;
    min-height: 100%;
    align-items: center;
    justify-content: center;
    gap: 4.2em;
    padding: 4em 5em;
    font-size: calc(13px * var(--zctoc-map-zoom, 1));
}

.zctoc-mindmap__branch {
    display: flex;
    align-items: center;
    gap: 4.2em;
}

.zctoc-mindmap__node-shell {
    position: relative;
    display: flex;
    flex: none;
    align-items: center;
}

.zctoc-mindmap__branch-toggle {
    position: absolute;
    top: 50%;
    right: -0.68em;
    z-index: 3;
    display: grid;
    width: 1.35em;
    height: 1.35em;
    padding: 0;
    place-items: center;
    color: var(--zctoc-map-muted);
    cursor: pointer;
    background: var(--zctoc-map-card);
    border: 1px solid var(--zctoc-map-line);
    border-radius: 999px;
    box-shadow: 0 3px 10px var(--zctoc-map-shadow);
    transform: translateY(-50%);
    transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.zctoc-mindmap__branch-toggle::before,
.zctoc-mindmap__branch-toggle::after {
    position: absolute;
    width: 0.52em;
    height: 1px;
    content: "";
    background: currentColor;
    border-radius: 999px;
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.zctoc-mindmap__branch-toggle::after {
    transform: rotate(90deg) scaleY(0);
}

.zctoc-mindmap__branch-toggle:hover,
.zctoc-mindmap__branch-toggle:focus-visible {
    color: #fff;
    background: var(--zctoc-map-active);
    border-color: var(--zctoc-map-active);
    box-shadow: 0 5px 16px var(--zctoc-map-shadow);
    transform: translateY(-50%) scale(1.1);
}

.zctoc-mindmap__branch-toggle[aria-expanded="false"]::after {
    transform: rotate(90deg) scaleY(1);
}

.zctoc-mindmap__branch.is-collapsed > .zctoc-mindmap__children {
    display: none;
}

.zctoc-mindmap__branch:not(.is-collapsed) > .zctoc-mindmap__children {
    transform-origin: left center;
    animation: zctoc-map-branch-in 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes zctoc-map-branch-in {
    from { opacity: 0; transform: translateX(-0.5em) scale(0.98); }
    to { opacity: 1; transform: none; }
}

.zctoc-mindmap__children {
    display: flex;
    flex-direction: column;
    gap: 1.25em;
}

.zctoc-mindmap__tree > .zctoc-mindmap__children {
    gap: 3em;
}

.zctoc-mindmap__node {
    --zctoc-node-accent: var(--zctoc-map-active);
    position: relative;
    display: inline-flex;
    flex: none;
    min-height: 3.15em;
    max-width: 24em;
    align-items: center;
    gap: 0.65em;
    padding: 0.65em 1em 0.65em 0.8em;
    overflow: hidden;
    color: var(--zctoc-map-text);
    font-size: 1em;
    line-height: 1.35;
    text-align: left;
    cursor: pointer;
    background: var(--zctoc-map-card);
    border: 1px solid var(--zctoc-map-line);
    border-radius: 11px;
    box-shadow: 0 4px 14px var(--zctoc-map-shadow);
    transition: color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.zctoc-mindmap__node::before {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 3px;
    content: "";
    background: var(--zctoc-node-accent);
    opacity: 0.72;
}

.zctoc-mindmap__node[data-zctoc-map-depth="3"] {
    --zctoc-node-accent: #8b5cf6;
}

.zctoc-mindmap__node[data-zctoc-map-depth="4"] {
    --zctoc-node-accent: #f59e0b;
}

.zctoc-mindmap__node[data-zctoc-map-depth="5"],
.zctoc-mindmap__node[data-zctoc-map-depth="6"] {
    --zctoc-node-accent: #10b981;
}

.zctoc-mindmap__node:hover,
.zctoc-mindmap__node:focus-visible,
.zctoc-mindmap__node.is-trail,
.zctoc-mindmap__node.is-current-trail {
    color: var(--zctoc-map-active);
    border-color: var(--zctoc-map-active);
    box-shadow: 0 8px 24px var(--zctoc-map-shadow);
    transform: translateY(-1px);
}

.zctoc-mindmap__node.is-current {
    color: var(--zctoc-map-active);
    border-color: var(--zctoc-map-active);
    box-shadow: 0 0 0 3px var(--focus-color-opacity1, rgba(14, 116, 144, 0.12)), 0 10px 26px var(--zctoc-map-shadow);
    transform: translateY(-1px);
}

.zctoc-mindmap__node--root {
    min-width: 16em;
    min-height: 4.4em;
    justify-content: center;
    padding: 0.9em 1.3em;
    color: #fff;
    font-size: 1.08em;
    font-weight: 750;
    background: linear-gradient(135deg, var(--zctoc-map-active), var(--theme-color, var(--zctoc-map-active)));
    border-color: transparent;
    border-radius: 14px;
    box-shadow: 0 14px 34px var(--zctoc-map-shadow);
}

.zctoc-mindmap__node--root::before {
    display: none;
}

.zctoc-mindmap__node--root:hover,
.zctoc-mindmap__node--root:focus-visible,
.zctoc-mindmap__node--root.is-current-trail {
    color: #fff;
    border-color: transparent;
}

.zctoc-mindmap__node-dot {
    box-sizing: border-box;
    flex: none;
    width: 0.72em;
    height: 0.72em;
    background: var(--zctoc-node-accent);
    border: 2px solid var(--zctoc-map-card);
    border-radius: 999px;
    box-shadow: 0 0 0 1px var(--zctoc-node-accent);
}

.zctoc-mindmap__node.is-trail .zctoc-mindmap__node-dot {
    border-color: var(--zctoc-map-active);
}

.zctoc-mindmap__node-level {
    flex: none;
    padding: 0.2em 0.42em;
    color: var(--zctoc-node-accent);
    font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
    font-size: 0.72em;
    font-weight: 700;
    line-height: 1;
    background: var(--zctoc-map-hover);
    border-radius: 5px;
}

.zctoc-mindmap__node-text {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.zctoc-mindmap__minimap {
    position: absolute;
    right: 18px;
    bottom: 47px;
    z-index: 4;
    width: 168px;
    height: 104px;
    padding: 7px;
    overflow: hidden;
    cursor: crosshair;
    background: color-mix(in srgb, var(--zctoc-map-bg) 88%, transparent);
    border: 1px solid var(--zctoc-map-line);
    border-radius: 12px;
    box-shadow: 0 10px 30px var(--zctoc-map-shadow);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    opacity: 0.9;
    transition: opacity 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.zctoc-mindmap__minimap:hover,
.zctoc-mindmap__minimap:focus-visible {
    border-color: var(--zctoc-map-active);
    opacity: 1;
    transform: translateY(-2px);
}

.zctoc-mindmap__minimap svg {
    display: block;
    width: 100%;
    height: 100%;
}

.zctoc-mindmap__mini-line {
    fill: none;
    stroke: var(--zctoc-map-line);
    stroke-width: 5px;
}

.zctoc-mindmap__mini-node {
    fill: var(--zctoc-map-muted);
    opacity: 0.54;
}

.zctoc-mindmap__mini-node.is-current {
    fill: var(--zctoc-map-active);
    opacity: 1;
}

.zctoc-mindmap__mini-viewport {
    fill: var(--focus-color-opacity05, rgba(14, 116, 144, 0.08));
    stroke: var(--zctoc-map-active);
    stroke-width: 1.5px;
    vector-effect: non-scaling-stroke;
}

.zctoc-mindmap__status {
    position: relative;
    z-index: 3;
    display: flex;
    min-height: 34px;
    flex: none;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 7px 18px;
    color: var(--zctoc-map-muted);
    font-size: 11px;
    line-height: 1.35;
    background: var(--zctoc-map-bg);
    border-top: 1px solid var(--zctoc-map-line);
}

.zctoc-mindmap__shortcut {
    font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
    white-space: nowrap;
}

@supports not (background: color-mix(in srgb, white 50%, transparent)) {
    .zctoc-mindmap__minimap {
        background: var(--zctoc-map-bg);
    }
}

@media (max-width: 991px) {
    .zibll-child-article-toc-tree[data-mobile-drawer="1"] .zctoc-panel {
        display: none;
    }

    .zibll-child-article-toc-tree[data-mobile-drawer="1"] .zctoc-panel.is-open-mobile {
        position: fixed;
        top: var(--zctoc-mobile-top);
        right: max(16px, env(safe-area-inset-right));
        z-index: 10030;
        display: flex;
        width: min(328px, calc(100vw - 32px));
        max-height: calc(100dvh - var(--zctoc-mobile-top) - 24px);
        border: 1px solid var(--main-border-color, rgba(0, 0, 0, 0.08));
        box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
        animation: zctoc-drawer-in 0.18s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .zibll-child-article-toc-tree[data-mobile-drawer="1"] .zctoc-dock-btn {
        display: inline-flex;
    }

    .zibll-child-article-toc-tree[data-mobile-drawer="1"] .zctoc-panel__mobile-close {
        display: grid;
        flex: none;
        place-items: center;
    }

    .zibll-child-article-toc-tree[data-mobile-drawer="1"] .zctoc-panel__progress {
        margin-left: auto;
    }

    .zctoc-mindmap__panel {
        width: calc(100vw - 24px);
        height: calc(100dvh - 40px);
    }

    .zctoc-mindmap__header {
        min-height: 0;
        align-items: stretch;
        flex-direction: column;
        gap: 7px;
        padding: 9px 10px;
    }

    .zctoc-mindmap__title-group {
        padding: 0 4px;
    }

    .zctoc-mindmap__tools {
        justify-content: flex-end;
    }

    .zctoc-mindmap__minimap {
        right: 10px;
        bottom: 43px;
        width: 126px;
        height: 78px;
    }

    .zctoc-mindmap__status {
        min-height: 30px;
        padding: 6px 10px;
    }

    .zctoc-mindmap__shortcut {
        display: none;
    }

    .zctoc-mindmap__tree {
        padding: 3em;
    }
}

@media (max-width: 520px) {
    .zctoc-mindmap__meta,
    .zctoc-mindmap__tool-divider {
        display: none;
    }

    .zctoc-mindmap__tool-btn {
        width: 29px;
        height: 29px;
    }

    .zctoc-mindmap__zoom-value {
        min-width: 39px;
        font-size: 10px;
    }
}

@keyframes zctoc-drawer-in {
    from { opacity: 0; transform: translateX(8px); }
    to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
    .zibll-child-article-toc-tree *,
    .zibll-child-article-toc-tree *::before,
    .zibll-child-article-toc-tree *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}