*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg:          #06060c;
    --bg2:         #08080f;
    --bg3:         #0c0c16;
    --surface:     rgba(255,255,255,0.03);
    --surface-2:   rgba(255,255,255,0.06);
    --surface-3:   rgba(255,255,255,0.09);
    --border:      rgba(255,255,255,0.07);
    --border-2:    rgba(255,255,255,0.12);
    --border-hot:  rgba(255, 140, 60, 0.35);

    --accent:      #ff8c3a;
    --accent-2:    #e67329;
    --accent-hot:  #ffa866;
    --orange-deep: #cc5e1a;
    --amber:       #ffb366;

    --blue:        #4d8cff;
    --blue-hot:    #7aa9ff;
    --cyan:        #4dd4e0;
    --purple:      #a855f7;
    --green:       #4ade80;
    --yellow:      #facc15;
    --red:         #f87171;

    --text-1:  #f8f7f5;
    --text-2:  #b8b4ad;
    --text-3:  #6b655e;

    --font-main: 'Outfit', sans-serif;
    --font-jp:   'Noto Serif JP', serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;

    --nav-h: 72px;
    --sidebar-w: 280px;
    --toc-w: 240px;
    --wrap: 1280px;
    --r-sm: 10px;
    --r-md: 16px;
    --r-lg: 24px;
    --r-xl: 32px;

    --code-bg: rgba(255,255,255,0.04);
    --code-bg-2: #0d1117;
}

body.light {
    --bg:         #f8f6f3;
    --bg2:        #f0ece6;
    --bg3:        #e8e3db;
    --surface:    rgba(255,255,255,0.6);
    --surface-2:  rgba(255,255,255,0.85);
    --surface-3:  rgba(255,255,255,0.95);
    --border:     rgba(100,80,60,0.10);
    --border-2:   rgba(100,80,60,0.18);
    --border-hot: rgba(230, 115, 41, 0.30);
    --text-1:     #1a1815;
    --text-2:     #4a453e;
    --text-3:     #8a8175;
    --code-bg:    rgba(100,80,60,0.06);
    --code-bg-2:  #f6f3ee;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-main);
    background: var(--bg);
    color: var(--text-1);
    overflow-x: hidden;
    line-height: 1.6;
    transition: background 0.4s, color 0.4s;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-2); }

a { color: var(--accent-hot); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent); }

header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    height: var(--nav-h);
    background: rgba(10,10,12,0.78);
    backdrop-filter: blur(24px) saturate(200%);
    -webkit-backdrop-filter: blur(24px) saturate(200%);
    border-bottom: 1px solid var(--border);
    transition: background 0.4s, border-color 0.4s;
}
body.light header {
    background: rgba(248,246,243,0.85);
}

.header-inner {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}
.logo-text {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-weight: 800;
    font-size: 1rem;
    letter-spacing: 0.04em;
}
.logo-mark {
    background: linear-gradient(135deg, var(--accent), var(--amber));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
    letter-spacing: 0.08em;
    font-size: 1.05rem;
}
.logo-divider {
    width: 1px; height: 18px;
    background: var(--border-2);
}
.logo-sub {
    color: var(--text-2);
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}
.logo-img {
    height: 38px;
    width: auto;
    display: block;
}
.logo-light { display: none; }
body.light .logo-dark { display: none; }
body.light .logo-light { display: block; }

.main-nav {
    display: flex;
    gap: 0.35rem;
    margin-left: auto;
}
.nav-link {
    padding: 0.55rem 1.1rem;
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    border-radius: var(--r-sm);
    transition: color 0.2s, background 0.2s;
    white-space: nowrap;
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s, left 0.3s;
    border-radius: 2px;
}
.nav-link:hover {
    color: var(--text-1);
    background: var(--surface-2);
}
.nav-link:hover::after {
    width: 60%;
    left: 20%;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}
.theme-btn, .lang-btn {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-2);
    border-radius: var(--r-sm);
    padding: 0.5rem 0.85rem;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: var(--font-main);
    transition: all 0.2s;
    min-width: 40px;
}
.theme-btn:hover, .lang-btn:hover {
    color: var(--text-1);
    border-color: var(--accent);
    background: rgba(255,140,58,0.12);
}

.burger-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    padding: 0.55rem 0.65rem;
    cursor: pointer;
}
.burger-btn span {
    display: block;
    width: 20px; height: 2px;
    background: var(--text-2);
    border-radius: 2px;
    transition: all 0.3s;
}

.doc-layout {
    display: grid;
    grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--toc-w);
    max-width: calc(var(--wrap) + var(--sidebar-w) + var(--toc-w) + 4rem);
    margin: 0 auto;
    min-height: calc(100vh - var(--nav-h));
    padding-top: var(--nav-h);
    gap: 0;
}

.doc-sidebar {
    position: sticky;
    top: var(--nav-h);
    height: calc(100vh - var(--nav-h));
    border-right: 1px solid var(--border);
    background: var(--bg);
    overflow: hidden;
    z-index: 50;
}
.sidebar-inner {
    height: 100%;
    overflow-y: auto;
    padding: 1.5rem 1rem 2rem;
    display: flex;
    flex-direction: column;
}

.sidebar-close {
    display: none;
    position: absolute;
    top: 0.85rem;
    right: 0.85rem;
    width: 32px;
    height: 32px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-2);
    border-radius: var(--r-sm);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    z-index: 5;
    transition: all 0.2s;
}
.sidebar-close:hover { color: var(--accent); border-color: var(--accent); }

.sidebar-search {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    padding: 0.6rem 0.9rem;
    margin-bottom: 1.5rem;
    transition: border-color 0.2s, background 0.2s;
}
.sidebar-search:focus-within {
    border-color: var(--accent);
    background: var(--surface-2);
}
.sidebar-search i {
    color: var(--text-3);
    font-size: 0.85rem;
}
.sidebar-search input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-1);
    font-family: var(--font-main);
    font-size: 0.88rem;
    width: 100%;
}
.sidebar-search input::placeholder { color: var(--text-3); }

.sidebar-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
}
.sidebar-group { display: flex; flex-direction: column; gap: 0.25rem; }
.sidebar-group-title {
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-3);
    padding: 0 0.85rem;
    margin-bottom: 0.5rem;
}
.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.5rem 0.85rem;
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    border-radius: var(--r-sm);
    transition: all 0.2s;
    position: relative;
    border: 1px solid transparent;
}
.sidebar-link i {
    width: 16px;
    text-align: center;
    color: var(--text-3);
    font-size: 0.85rem;
    transition: color 0.2s;
}
.sidebar-link:hover {
    color: var(--text-1);
    background: var(--surface-2);
}
.sidebar-link:hover i { color: var(--accent); }
.sidebar-link.active {
    color: var(--accent-hot);
    background: linear-gradient(135deg, rgba(255,140,58,0.10), rgba(255,140,58,0.02));
    border-color: var(--border-hot);
    font-weight: 600;
}
.sidebar-link.active i { color: var(--accent); }
.sidebar-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: linear-gradient(180deg, var(--accent), var(--amber));
    border-radius: 0 3px 3px 0;
}
.sidebar-link.hidden { display: none; }

.sidebar-footer {
    margin-top: 1.5rem;
    padding-top: 1.2rem;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}
.sidebar-link-ext {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.45rem 0.85rem;
    color: var(--text-3);
    text-decoration: none;
    font-size: 0.85rem;
    border-radius: var(--r-sm);
    transition: all 0.2s;
}
.sidebar-link-ext:hover { color: var(--accent); background: var(--surface); }
.sidebar-link-ext i { width: 16px; text-align: center; }

.doc-main {
    padding: 1.5rem 2.5rem 4rem;
    min-width: 0;
}

.doc-toolbar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.6rem 0 1.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
}
.sidebar-toggle {
    display: none;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-2);
    width: 38px; height: 38px;
    border-radius: var(--r-sm);
    cursor: pointer;
    transition: all 0.2s;
}
.sidebar-toggle:hover { color: var(--accent); border-color: var(--accent); }

.doc-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-3);
    flex: 1;
    min-width: 0;
}
.crumb-root { color: var(--text-3); }
.crumb-sep { opacity: 0.5; }
.crumb-current { color: var(--text-1); font-weight: 600; }

.doc-edit-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    color: var(--text-3);
    padding: 0.4rem 0.7rem;
    border-radius: var(--r-sm);
    border: 1px solid var(--border);
    transition: all 0.2s;
}
.doc-edit-link:hover { color: var(--accent); border-color: var(--accent); background: var(--surface); }

.doc-content {
    max-width: 820px;
    font-size: 1.02rem;
    color: var(--text-2);
    line-height: 1.75;
}
.doc-content > *:first-child { margin-top: 0; }
.doc-content > *:last-child { margin-bottom: 0; }

.doc-content h1 {
    font-size: clamp(2rem, 4vw, 2.6rem);
    font-weight: 800;
    line-height: 1.15;
    margin: 0 0 1.5rem;
    color: var(--text-1);
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    scroll-margin-top: calc(var(--nav-h) + 1rem);
    background: linear-gradient(135deg, var(--text-1) 60%, var(--accent-hot));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.doc-content h2 {
    font-size: clamp(1.55rem, 2.6vw, 1.9rem);
    font-weight: 700;
    line-height: 1.25;
    margin: 3rem 0 1rem;
    color: var(--text-1);
    scroll-margin-top: calc(var(--nav-h) + 1rem);
    position: relative;
    padding-left: 1.2rem;
}
.doc-content h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.45rem;
    width: 4px;
    height: 1.6rem;
    background: linear-gradient(180deg, var(--accent), var(--amber));
    border-radius: 2px;
}
.doc-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin: 2rem 0 0.85rem;
    color: var(--text-1);
    scroll-margin-top: calc(var(--nav-h) + 1rem);
}
.doc-content h4 {
    font-size: 1.08rem;
    font-weight: 700;
    margin: 1.5rem 0 0.6rem;
    color: var(--text-1);
}
.doc-content h5 {
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-3);
    margin: 1.2rem 0 0.5rem;
}

.doc-content p {
    margin-bottom: 1.25rem;
    color: var(--text-2);
}
.doc-content p strong { color: var(--text-1); font-weight: 700; }
.doc-content p em { color: var(--accent-hot); font-style: italic; }
.doc-content a {
    color: var(--accent-hot);
    text-decoration: underline;
    text-decoration-color: rgba(255,168,102,0.3);
    text-underline-offset: 2px;
    transition: all 0.2s;
}
.doc-content a:hover {
    color: var(--accent);
    text-decoration-color: var(--accent);
}

.doc-content ul, .doc-content ol {
    margin: 0 0 1.25rem 0;
    padding-left: 1.5rem;
}
.doc-content li {
    margin-bottom: 0.5rem;
    color: var(--text-2);
    padding-left: 0.3rem;
}
.doc-content li::marker { color: var(--accent); }
.doc-content ul li::marker { content: '▸ '; color: var(--accent); font-weight: bold; }

.doc-content code {
    font-family: var(--font-mono);
    background: var(--code-bg);
    color: var(--accent-hot);
    padding: 0.15rem 0.45rem;
    border-radius: 5px;
    font-size: 0.88em;
    border: 1px solid var(--border);
    word-break: break-word;
}
.doc-content pre {
    background: var(--code-bg-2) !important;
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
    margin: 1.5rem 0;
    font-size: 0.88rem;
    line-height: 1.65;
    position: relative;
}
.doc-content pre code {
    background: transparent;
    border: none;
    color: inherit;
    padding: 0;
    font-size: inherit;
    word-break: normal;
}
.doc-content pre code.hljs { padding: 0; background: transparent; }

.doc-content pre[data-lang]::before {
    content: attr(data-lang);
    position: absolute;
    top: 0; right: 0;
    padding: 0.3rem 0.7rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-3);
    background: var(--surface);
    border-bottom-left-radius: var(--r-sm);
    border-left: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.doc-content blockquote {
    margin: 1.5rem 0;
    padding: 1rem 1.5rem;
    border-left: 4px solid var(--accent);
    background: linear-gradient(90deg, rgba(255,140,58,0.06), transparent);
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    color: var(--text-2);
    font-style: italic;
}
.doc-content blockquote p { margin-bottom: 0; color: var(--text-2); }
.doc-content blockquote p strong { color: var(--accent-hot); }

.doc-content table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 1.5rem 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    overflow: hidden;
    font-size: 0.92rem;
}
.doc-content thead {
    background: linear-gradient(135deg, rgba(255,140,58,0.10), rgba(255,140,58,0.02));
}
.doc-content th {
    padding: 0.85rem 1rem;
    text-align: left;
    color: var(--text-1);
    font-weight: 700;
    border-bottom: 1px solid var(--border-hot);
}
.doc-content td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-2);
    vertical-align: top;
}
.doc-content tr:last-child td { border-bottom: none; }
.doc-content tr:hover td { background: var(--surface-2); }

.doc-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--r-md);
    margin: 1.5rem 0;
    border: 1px solid var(--border);
    box-shadow: 0 8px 32px rgba(0,0,0,0.25);
}
body.light .doc-content img { box-shadow: 0 8px 24px rgba(100,80,60,0.10); }

.doc-content hr {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-2), transparent);
    margin: 3rem 0;
}

.doc-content .callout {
    margin: 1.5rem 0;
    padding: 1rem 1.25rem 1rem 3.2rem;
    border-radius: var(--r-md);
    border-left: 4px solid;
    position: relative;
    background: var(--surface);
    border-color: var(--border);
}
.doc-content .callout::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 30px; height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.85rem;
    color: #fff;
}
.doc-content .callout > *:first-child { margin-top: 0; }
.doc-content .callout > *:last-child { margin-bottom: 0; }
.doc-content .callout p { margin-bottom: 0.5rem; }
.doc-content .callout p:last-child { margin-bottom: 0; }
.doc-content .callout-title {
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 0.35rem !important;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.doc-content .callout.callout-info {
    border-left-color: var(--blue);
    background: linear-gradient(90deg, rgba(77,140,255,0.08), transparent 70%);
}
.doc-content .callout.callout-info::before {
    content: '\f05a';
    background: var(--blue);
}
.doc-content .callout.callout-tip {
    border-left-color: var(--green);
    background: linear-gradient(90deg, rgba(74,222,128,0.08), transparent 70%);
}
.doc-content .callout.callout-tip::before {
    content: '\f0eb';
    background: var(--green);
}
.doc-content .callout.callout-warning {
    border-left-color: var(--yellow);
    background: linear-gradient(90deg, rgba(250,204,21,0.10), transparent 70%);
}
.doc-content .callout.callout-warning::before {
    content: '\f071';
    background: var(--yellow);
    color: #1a1815;
}
.doc-content .callout.callout-danger {
    border-left-color: var(--red);
    background: linear-gradient(90deg, rgba(248,113,113,0.10), transparent 70%);
}
.doc-content .callout.callout-danger::before {
    content: '\f06a';
    background: var(--red);
}
.doc-content .callout.callout-note {
    border-left-color: var(--purple);
    background: linear-gradient(90deg, rgba(168,85,247,0.08), transparent 70%);
}
.doc-content .callout.callout-note::before {
    content: '\f02d';
    background: var(--purple);
}

.doc-content .card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}
.doc-content .card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    padding: 1.25rem;
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
    position: relative;
    overflow: hidden;
}
.doc-content .card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,140,58,0.04), transparent 60%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s;
}
.doc-content .card:hover {
    transform: translateY(-3px);
    border-color: var(--border-hot);
    box-shadow: 0 12px 30px rgba(0,0,0,0.25);
}
.doc-content .card:hover::before { opacity: 1; }
.doc-content .card > *:first-child { margin-top: 0; }
.doc-content .card > *:last-child { margin-bottom: 0; }
.doc-content .card h4 {
    color: var(--accent-hot);
    margin-top: 0;
    display: flex;
    align-items: center;
    gap: 0.55rem;
}
.doc-content .card h4 i { color: var(--accent); }
.doc-content .card p { font-size: 0.93rem; margin-bottom: 0; color: var(--text-2); }

.doc-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 5rem 2rem;
    text-align: center;
    color: var(--text-3);
    gap: 1.5rem;
}
.loader-orb {
    width: 60px; height: 60px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, var(--accent), var(--orange-deep));
    box-shadow: 0 0 30px rgba(255,140,58,0.45);
    animation: orbPulse 1.4s ease-in-out infinite;
}
@keyframes orbPulse {
    0%,100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(0.85); opacity: 0.75; }
}

.doc-error {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-2);
}
.doc-error .err-icon {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 1rem;
}
.doc-error h2 { color: var(--text-1); border: none; padding-left: 0; }
.doc-error h2::before { display: none; }
.doc-error code {
    display: inline-block;
    margin: 0.5rem 0.2rem;
}

.doc-pagination {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    max-width: 820px;
}
.doc-pagination:empty { display: none; }
.pagelink {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.85rem 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    text-decoration: none;
    color: var(--text-1);
    transition: all 0.25s;
    max-width: 48%;
}
.pagelink:hover {
    background: var(--surface-2);
    border-color: var(--accent);
    transform: translateY(-2px);
}
.pagelink.pagelink-prev { text-align: left; }
.pagelink.pagelink-next { text-align: right; margin-left: auto; }
.pagelink-label {
    font-size: 0.78rem;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.pagelink-title {
    font-size: 0.98rem;
    color: var(--accent-hot);
    font-weight: 600;
}
.pagelink:hover .pagelink-title { color: var(--accent); }

.doc-toc {
    position: sticky;
    top: var(--nav-h);
    height: calc(100vh - var(--nav-h));
    overflow-y: auto;
    padding: 2rem 1rem 2rem 1.5rem;
    border-left: 1px solid var(--border);
}
.toc-inner { display: flex; flex-direction: column; gap: 1rem; }
.toc-label {
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 0.5rem;
}
.toc-list {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    font-size: 0.85rem;
    border-left: 1px solid var(--border);
    padding-left: 0.85rem;
}
.toc-list a {
    display: block;
    color: var(--text-3);
    text-decoration: none;
    padding: 0.2rem 0;
    transition: color 0.2s, transform 0.2s;
    line-height: 1.4;
}
.toc-list a:hover { color: var(--accent); transform: translateX(2px); }
.toc-list a.active {
    color: var(--accent-hot);
    font-weight: 600;
    transform: translateX(2px);
}
.toc-list a.toc-h3 { padding-left: 0.85rem; font-size: 0.8rem; }
.toc-list a.toc-h4 { padding-left: 1.7rem; font-size: 0.78rem; opacity: 0.8; }

.toc-back-top {
    margin-top: 0.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}
.toc-back-top a {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-3);
    font-size: 0.82rem;
    text-decoration: none;
    transition: color 0.2s;
}
.toc-back-top a:hover { color: var(--accent); }

.footer {
    background: var(--bg2);
    border-top: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    padding: 4rem 0 2rem;
    margin-top: 2rem;
}
.footer-glow {
    position: absolute;
    bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 700px; height: 350px;
    background: radial-gradient(ellipse, rgba(255,140,58,0.06) 0%, transparent 70%);
    pointer-events: none;
}
.section-wrap {
    max-width: var(--wrap);
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
.footer-brand p {
    font-size: 0.92rem;
    color: var(--text-3);
    line-height: 1.75;
    margin-bottom: 1.5rem;
}
.social-row { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.soc-btn {
    width: 42px; height: 42px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--r-sm);
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-3);
    text-decoration: none;
    font-size: 1.05rem;
    transition: all 0.25s;
}
.soc-btn:hover {
    background: rgba(255,140,58,0.15);
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255,140,58,0.15);
}
.footer-col h5 {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 1.4rem;
}
.footer-col a {
    display: block;
    font-size: 0.92rem;
    color: var(--text-2);
    text-decoration: none;
    margin-bottom: 0.85rem;
    transition: all 0.2s;
}
.footer-col a:hover {
    color: var(--accent);
    transform: translateX(3px);
}
.footer-bottom {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    font-size: 0.82rem;
    color: var(--text-3);
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}
.footer-sep { opacity: 0.4; }

.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(2px);
    z-index: 90;
    opacity: 0;
    transition: opacity 0.3s;
}
.sidebar-backdrop.show { display: block; opacity: 1; }

@media (max-width: 1280px) {
    .doc-layout { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
    .doc-toc { display: none; }
}

@media (max-width: 1024px) {
    .doc-layout { grid-template-columns: minmax(0, 1fr); }
    .doc-sidebar {
        position: fixed;
        top: var(--nav-h);
        left: 0;
        width: var(--sidebar-w);
        transform: translateX(-100%);
        transition: transform 0.3s;
        background: var(--bg2);
        z-index: 100;
    }
    .doc-sidebar.open { transform: translateX(0); }
    .doc-sidebar.open .sidebar-close { display: inline-flex; }
    .sidebar-toggle { display: inline-flex; align-items: center; justify-content: center; }
    .doc-main { padding: 1rem 1.5rem 3rem; }
}

@media (max-width: 768px) {
    .header-inner { padding: 0 1rem; gap: 1rem; }
    .main-nav { display: none; }
    .burger-btn { display: flex; }
    .doc-main { padding: 1rem 1rem 3rem; }
    .doc-content h1 { font-size: 1.8rem; }
    .doc-content h2 { font-size: 1.4rem; padding-left: 1rem; }
    .doc-content h3 { font-size: 1.15rem; }
    .doc-content pre { padding: 1rem; font-size: 0.82rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
    .footer-brand { grid-column: span 2; }
    .doc-pagination { flex-direction: column; }
    .pagelink { max-width: 100%; }
    .pagelink.pagelink-next { margin-left: 0; }
}

@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand { grid-column: span 1; }
    .logo-divider, .logo-sub { display: none; }
}

@media print {
    header, .doc-sidebar, .doc-toc, .doc-toolbar, .doc-pagination, .footer, .sidebar-backdrop { display: none !important; }
    .doc-layout { grid-template-columns: 1fr; padding-top: 0; }
    .doc-content { color: #000; max-width: 100%; }
    .doc-content h1, .doc-content h2, .doc-content h3 { color: #000; }
}