@import url("https://cdnjs.cloudflare.com/ajax/libs/JetBrains-Mono/2.304/jetbrains-mono.min.css");

:root {
    --font-mono:
        "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas,
        monospace;
    --font-sans:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica,
        Arial, sans-serif;
    --header-h: 56px;
    --sidebar-w: 260px;
    --toc-w: 240px;
    --radius: 5px;
    --accent: #56c8e8;
    --accent-dim: #2ea5c8;
}

html[data-theme="dark"] {
    --bg: #050605;
    --bg-elevated: #252830;
    --bg-sidebar: #1a1d24;
    --border: #2c3340;
    --text: #e4e8ec;
    --text-dim: #9eaab6;
    --text-faint: #62707e;
    --code-bg: #1e1e1e;
    --code-border: #2e2e2e;
    --callout-tip-bg: #0e2a2e;
    --callout-tip-border: #1a5060;
    --callout-note-bg: #0e1e30;
    --callout-note-border: #1c3a5a;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

html[data-theme="light"] {
    --bg: #ffffff;
    --bg-elevated: #f6f7f5;
    --bg-sidebar: #fafaf9;
    --border: #e4e6e2;
    --text: #191d1a;
    --text-dim: #565f59;
    --text-faint: #8a938c;
    --code-bg: #f2f3f0;
    --code-border: #e2e4df;
    --callout-tip-bg: #eefaf1;
    --callout-tip-border: #b9e6c4;
    --callout-note-bg: #eef4fb;
    --callout-note-border: #bcd8ef;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
    --accent: #1a8faa;
    --accent-dim: #15708a;
}

* {
    box-sizing: border-box;
}
html,
body {
    margin: 0;
    padding: 0;
}
body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 15.5px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}
a {
    color: inherit;
    text-decoration: none;
}
::selection {
    background: var(--accent);
    color: #0d0f0e;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    height: var(--header-h);
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 0 20px;
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}
.brand {
    display: flex;
    align-items: center;
    gap: 9px;
    font-weight: 700;
    font-size: 17px;
    white-space: nowrap;
}
.header-nav {
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 13.5px;
    color: var(--text-dim);
}
.header-nav a:hover {
    color: var(--text);
}
.header-nav a.active {
    color: var(--text);
    border-bottom: 1px solid var(--accent);
}

.search-box {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
    width: 220px;
    height: 34px;
    padding: 0 10px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-faint);
    font-size: 13px;
    cursor: pointer;
}
.search-box .kbd {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 2px 5px;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-faint);
}

.icon-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    color: var(--text-dim);
    flex-shrink: 0;
}
.icon-btn:hover {
    background: var(--bg-elevated);
    color: var(--text);
}

.theme-toggle {
    display: flex;
    align-items: center;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 2px;
    gap: 2px;
    background: var(--bg-elevated);
}
.theme-toggle button {
    border: none;
    background: transparent;
    color: var(--text-faint);
    width: 26px;
    height: 26px;
    border-radius: 999px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
}
.theme-toggle button.active {
    background: var(--accent);
    color: #0d0f0e;
}

.shell {
    display: flex;
    max-width: 1440px;
    margin: 0 auto;
}
.shell-centered {
    justify-content: center;
}

.sidebar {
    width: var(--sidebar-w);
    flex-shrink: 0;
    height: calc(100vh - var(--header-h));
    position: sticky;
    top: var(--header-h);
    overflow-y: auto;
    padding: 24px 16px 40px;
    border-right: 1px solid var(--border);
    background: var(--bg-sidebar);
}
.nav-group {
    margin-bottom: 22px;
}
.nav-group-label {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin: 0 0 8px 10px;
}
.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: var(--radius);
    font-size: 13.5px;
    color: var(--text-dim);
    border-left: 2px solid transparent;
    margin-left: -1px;
}
.nav-link i {
    font-size: 14px;
    width: 16px;
    text-align: center;
}
.nav-link:hover {
    color: var(--text);
    background: var(--bg-elevated);
}
.nav-link.active {
    color: var(--accent);
    background: color-mix(in srgb, var(--accent) 10%, transparent);
    border-left-color: var(--accent);
    font-weight: 600;
}

.content {
    flex: 1;
    min-width: 0;
    padding: 40px 48px 80px;
    max-width: 760px;
}
.eyebrow {
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: var(--accent);
    margin-bottom: 6px;
}
h1.page-title {
    text-align: center;
    font-size: 60px;
    margin: 0 0 4px;
    letter-spacing: -0.01em;
}
.page-subtitle {
    color: var(--text-dim);
    font-size: 16px;
    margin: 0 0 28px;
}

.content p {
    color: var(--text);
    margin: 14px 0;
}
.content p.dim {
    color: var(--text-dim);
}

h2 {
    font-size: 21px;
    margin: 42px 0 14px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
}
h2:first-of-type {
    border-top: none;
    padding-top: 0;
}
h2 .hash {
    color: var(--text-faint);
    font-family: var(--font-mono);
    font-size: 16px;
    opacity: 0;
    transition: opacity 0.12s;
}
h2:hover .hash {
    opacity: 1;
}
h3 {
    font-size: 16.5px;
    margin: 26px 0 10px;
    color: var(--text);
}

.placeholder-block {
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    color: var(--text-faint);
    font-family: var(--font-mono);
    font-size: 12.5px;
    padding: 10px 12px;
    margin: 14px 0;
    background: var(--bg-elevated);
}

code.inline {
    font-family: var(--font-mono);
    font-size: 0.87em;
    background: var(--code-bg);
    border: 1px solid var(--code-border);
    padding: 1px 5px;
    border-radius: 4px;
    color: var(--accent);
}

.code-block {
    background: var(--code-bg);
    border: 1px solid var(--code-border);
    border-radius: var(--radius);
    overflow: hidden;
    margin: 16px 0;
}
.code-block .cb-title {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: var(--text-faint);
    border-bottom: 1px solid var(--code-border);
}
.code-block .cb-title::before {
    content: "›_";
    color: var(--accent);
}
.code-block pre {
    margin: 0;
    padding: 14px 16px;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.6;
    color: var(--text);
}
.code-block .comment {
    color: var(--text-faint);
}
.code-block .cmd {
    color: var(--accent);
}
.code-block .tool {
    color: #e8945a;
}
.code-block .str {
    color: var(--accent);
}

.tabs {
    display: flex;
    gap: 2px;
    margin: 16px 0 0;
}
.tab {
    padding: 7px 14px;
    font-size: 12.5px;
    font-family: var(--font-mono);
    color: var(--text-faint);
    border: 1px solid var(--border);
    border-bottom: none;
    border-radius: 6px 6px 0 0;
    background: var(--bg-elevated);
}
.tab.active {
    color: var(--text);
    background: var(--code-bg);
    border-color: var(--code-border);
}

.callout {
    display: flex;
    gap: 10px;
    padding: 12px 14px;
    margin: 18px 0;
    border-radius: var(--radius);
    border: 1px solid;
    font-size: 13.5px;
}
.callout .cicon {
    font-size: 14px;
    flex-shrink: 0;
    padding-top: 1px;
}
.callout-tip {
    background: var(--callout-tip-bg);
    border-color: var(--callout-tip-border);
}
.callout-tip .cicon {
    color: var(--accent);
}
.callout-note {
    background: var(--callout-note-bg);
    border-color: var(--callout-note-border);
}
.callout-note .cicon {
    color: #6fa8dc;
}
.callout-title {
    font-weight: 600;
    margin-bottom: 2px;
    font-size: 12.5px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

ol.steps {
    padding-left: 20px;
}
ol.steps li {
    margin-bottom: 14px;
}
ol.steps li strong {
    display: block;
    margin-bottom: 4px;
}

hr.divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 32px 0;
}

.page-footer {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    padding-top: 24px;
    margin-top: 32px;
    border-top: 1px solid var(--border);
    font-size: 12.5px;
    color: var(--text-faint);
}
.page-footer a {
    display: flex;
    align-items: center;
    gap: 5px;
}
.page-footer a:hover {
    color: var(--text);
}

.toc {
    width: var(--toc-w);
    flex-shrink: 0;
    height: calc(100vh - var(--header-h));
    position: sticky;
    top: var(--header-h);
    overflow-y: auto;
    padding: 40px 20px 40px 8px;
}
.toc-label {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 12px;
}
.toc-list {
    position: relative;
    padding-left: 14px;
    border-left: 1px solid var(--border);
}
.toc-list a {
    display: block;
    padding: 4px 0;
    font-size: 12.5px;
    color: var(--text-faint);
}
.toc-list a:hover {
    color: var(--text);
}
.toc-list a.active {
    color: var(--accent);
}
.toc-list a.sub {
    padding-left: 12px;
    font-size: 12px;
}
.toc-list a.active::before {
    content: "";
    position: absolute;
    left: -1px;
    width: 2px;
    height: 16px;
    background: var(--accent);
    margin-top: 2px;
    border-radius: 2px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition:
        background 0.15s,
        color 0.15s,
        border-color 0.15s;
}
.btn-accent {
    background: var(--accent);
    color: #0d0f0e;
}
.btn-accent:hover {
    background: var(--accent-dim);
}
.btn-outline {
    background: transparent;
    border-color: var(--border);
    color: var(--text);
}
.btn-outline:hover {
    background: var(--bg-elevated);
    border-color: var(--text-faint);
}

.hero-actions {
    display: flex;
    gap: 12px;
    margin: 30px 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-banner {
    position: relative;
    margin: 24px 0;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--bg-elevated);
}
.banner-img {
    display: block;
    width: 100%;
    height: auto;
}
.banner-video {
    display: block;
    width: 100%;
    height: auto;
}

.feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 20px 0;
}
.feature-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}
.feature-icon {
    font-size: 22px;
    color: var(--accent);
    margin-bottom: 10px;
}
.feature-title {
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 6px;
}
.feature-card p {
    margin: 0;
    font-size: 13.5px;
    line-height: 1.5;
}

.req-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin: 20px 0;
}
.req-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 16px;
    text-align: center;
}
.req-icon {
    font-size: 40px;
    color: var(--accent);
    margin-bottom: 8px;
}
.req-label {
    font-size: 10px;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 4px;
}
.req-value {
    font-size: 12px;
    font-weight: 500;
}

.download-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin: 20px 0;
}
.download-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 24px 16px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    cursor: pointer;
    transition:
        border-color 0.15s,
        background 0.15s;
}
.download-card i:first-child {
    font-size: 28px;
    color: var(--accent);
    margin-bottom: 4px;
}
.download-card:hover {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 6%, var(--bg-elevated));
}
.dl-name {
    font-weight: 600;
    font-size: 15px;
}
.dl-meta {
    font-size: 12.5px;
    color: var(--text-faint);
}

.ext-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin: 20px 0;
}
.ext-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: border-color 0.15s;
}
.ext-item:hover {
    border-color: var(--accent);
}
.ext-item > i:first-child {
    font-size: 20px;
    color: var(--accent);
    flex-shrink: 0;
    width: 24px;
    text-align: center;
}
.ext-item > div {
    flex: 1;
    min-width: 0;
}
.ext-name {
    font-weight: 500;
    font-size: 14px;
}
.ext-desc {
    font-size: 12.5px;
    color: var(--text-faint);
}
.ext-arrow {
    color: var(--text-faint);
    font-size: 14px;
    flex-shrink: 0;
}

.commit-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin: 16px 0;
}
.commit-loading {
    padding: 20px;
    text-align: center;
    color: var(--text-faint);
    font-size: 13px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.commit-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}
.commit-item:hover {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 5%, var(--bg-elevated));
}
.commit-sha {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent);
    background: var(--code-bg);
    border: 1px solid var(--code-border);
    padding: 2px 7px;
    border-radius: 4px;
    flex-shrink: 0;
}
.commit-msg {
    font-size: 13.5px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.commit-date {
    font-size: 12px;
    color: var(--text-faint);
    flex-shrink: 0;
}

.search-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    justify-content: center;
    padding-top: 120px;
}
.search-overlay.open {
    display: flex;
}
.search-modal {
    width: 560px;
    max-width: 92vw;
    max-height: 480px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
}
.search-input-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}
.search-input-wrap i {
    color: var(--text-faint);
    font-size: 16px;
}
.search-input-wrap input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-size: 15px;
    font-family: var(--font-sans);
}
.search-input-wrap input::placeholder {
    color: var(--text-faint);
}
.search-results {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}
.search-empty {
    padding: 24px;
    text-align: center;
    color: var(--text-faint);
    font-size: 13px;
}
.search-result-item {
    display: block;
    padding: 10px 14px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.12s;
}
.search-result-item:hover {
    background: color-mix(in srgb, var(--accent) 8%, var(--bg-elevated));
}
.sr-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 3px;
}
.sr-body {
    font-size: 12.5px;
    color: var(--text-faint);
    line-height: 1.4;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}
::-webkit-scrollbar-track {
    background: transparent;
}

@media (max-width: 1100px) {
    .toc {
        display: none;
    }
}
@media (max-width: 820px) {
    .content {
        padding: 28px 20px 60px;
        max-width: 100%;
    }
    .search-box {
        width: 150px;
    }
    .feature-grid {
        grid-template-columns: 1fr;
    }
    .req-grid {
        grid-template-columns: 1fr 1fr;
    }
    .download-grid {
        grid-template-columns: 1fr;
    }
    .hero-actions {
        flex-wrap: wrap;
    }
}