:root {
    --doc-bg: #f4f7fb;
    --doc-panel: #ffffff;
    --doc-panel-soft: rgba(255, 255, 255, 0.78);
    --doc-line: #e4ebf5;
    --doc-text: #17233a;
    --doc-muted: #71819d;
    --doc-accent: #2878ff;
    --doc-accent-soft: #e8f0ff;
    --doc-shadow: 0 30px 90px rgba(15, 23, 42, 0.09);
    --doc-radius: 26px;
}

* { box-sizing: border-box; }
[v-cloak] { display: none !important; }

body.doc-body {
    margin: 0;
    min-height: 100vh;
    color: var(--doc-text);
    font-family: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(40, 120, 255, 0.08), transparent 28%),
        radial-gradient(circle at bottom right, rgba(54, 179, 126, 0.08), transparent 24%),
        linear-gradient(180deg, #f8fbff 0%, var(--doc-bg) 100%);
}

.doc-shell {
    display: grid;
    grid-template-columns: 300px 1fr;
    min-height: 100vh;
}

.doc-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    border-right: 1px solid rgba(228, 235, 245, 0.85);
    background: rgba(247, 250, 255, 0.82);
    backdrop-filter: blur(16px);
    padding: 24px 18px;
    display: flex;
    flex-direction: column;
    z-index: 20;
}

.doc-logo {
    display: flex;
    align-items: center;
    gap: 14px;
}

.doc-logo__badge {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #2878ff, #68a4ff);
    color: #fff;
    font-weight: 700;
    box-shadow: 0 15px 30px rgba(40, 120, 255, 0.22);
}

.doc-logo__title {
    font-size: 1.05rem;
    font-weight: 700;
}

.doc-logo__meta,
.doc-topbar__eyebrow,
.doc-topbar__meta,
.doc-empty {
    color: var(--doc-muted);
}

.doc-sidebar__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.doc-sidebar__close,
.doc-menu-btn {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 12px;
    background: #eef4ff;
    color: var(--doc-text);
    font-size: 1.2rem;
}

.doc-sidebar__body {
    flex: 1;
    overflow-y: auto;
    padding-right: 4px;
}

.doc-tree {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.doc-node__row {
    display: flex;
    align-items: center;
    gap: 6px;
    border-radius: 14px;
    padding: 6px 8px;
    transition: all 0.2s ease;
    position: relative;
}

.doc-node__row:hover {
    background: #eff4fb;
}

.doc-node__row.is-active {
    background: var(--doc-accent-soft);
}

.doc-node__row.is-active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 3px;
    border-radius: 999px;
    background: var(--doc-accent);
}

.doc-node__toggle {
    width: 24px;
    height: 24px;
    border: 0;
    background: transparent;
    color: var(--doc-muted);
    padding: 0;
}

.doc-node__toggle.is-placeholder {
    display: inline-block;
}

.doc-node__link {
    flex: 1;
    text-decoration: none;
    color: var(--doc-text);
    padding: 4px 0;
    font-size: 0.95rem;
}

.doc-node__children {
    margin-left: 22px;
}

.doc-sidebar__footer {
    padding-top: 20px;
}

.doc-admin-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 12px 16px;
    border-radius: 16px;
    background: #fff;
    color: var(--doc-text);
    text-decoration: none;
    border: 1px solid var(--doc-line);
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
}

.doc-main {
    padding: 28px 34px;
}

.doc-topbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
}

.doc-topbar__title {
    margin: 6px 0 0;
    font-size: clamp(1.8rem, 2vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.03em;
}

.doc-content-wrap {
    display: flex;
    justify-content: center;
}

.doc-panel {
    width: min(100%, 920px);
    background: var(--doc-panel-soft);
    border: 1px solid rgba(228, 235, 245, 0.7);
    backdrop-filter: blur(12px);
    border-radius: var(--doc-radius);
    padding: 28px;
    box-shadow: var(--doc-shadow);
}

.doc-panel--state {
    min-height: 220px;
    display: grid;
    place-items: center;
    text-align: center;
}

.doc-panel--error {
    color: #b42318;
}

.doc-breadcrumbs {
    margin-bottom: 18px;
    color: var(--doc-muted);
    font-size: 0.95rem;
}

.doc-breadcrumbs a {
    color: inherit;
    text-decoration: none;
}

.doc-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1rem;
    line-height: 1.9;
}

.doc-content h1,
.doc-content h2,
.doc-content h3,
.doc-content h4 {
    margin-top: 1.8em;
    margin-bottom: 0.7em;
    font-weight: 800;
    line-height: 1.3;
}

.doc-content h1 { font-size: 2.2rem; }
.doc-content h2 { font-size: 1.6rem; }
.doc-content h3 { font-size: 1.25rem; }

.doc-content p,
.doc-content ul,
.doc-content ol,
.doc-content pre,
.doc-content table,
.doc-content blockquote {
    margin-bottom: 1.2rem;
}

.doc-content a {
    color: var(--doc-accent);
    text-decoration: none;
}

.doc-content code {
    background: #eff4fb;
    color: #1f4d8f;
    padding: 0.16rem 0.44rem;
    border-radius: 8px;
    font-size: 0.92em;
}

.doc-content .doc-code {
    background: #0f172a;
    color: #e2e8f0;
    padding: 18px;
    border-radius: 18px;
    overflow-x: auto;
}

.doc-content .doc-code code {
    background: transparent;
    color: inherit;
    padding: 0;
}

.doc-content .doc-quote {
    padding: 14px 18px;
    border-left: 4px solid var(--doc-accent);
    background: #f6f9ff;
    border-radius: 0 16px 16px 0;
    color: #39506f;
}

.doc-content .doc-table {
    width: 100%;
    border-radius: 16px;
    overflow: hidden;
    background: #fff;
}

.doc-content .doc-image {
    max-width: 100%;
    display: block;
    margin: 18px auto;
    border-radius: 18px;
    box-shadow: 0 16px 36px rgba(15, 23, 42, 0.12);
}

.doc-backdrop {
    display: none;
}

@media (max-width: 991.98px) {
    .doc-shell {
        grid-template-columns: 1fr;
    }

    .doc-sidebar {
        position: fixed;
        inset: 0 auto 0 0;
        width: min(86vw, 320px);
        transform: translateX(-102%);
        transition: transform 0.24s ease;
    }

    .doc-sidebar.is-open {
        transform: translateX(0);
    }

    .doc-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.34);
        z-index: 15;
    }

    .doc-main {
        padding: 20px 16px 32px;
    }

    .doc-topbar {
        align-items: center;
    }

    .doc-panel {
        padding: 22px 18px;
        border-radius: 22px;
    }
}