:root {
      --bg:           #313338;
      --bg-sidebar:   #2b2d31;
      --bg-card:      #383a40;
      --bg-code:      #1e1f22;
      --bg-hover:     rgba(79,84,92,.4);
      --bg-active:    rgba(88,101,242,.25);
      --bg-overlay:   rgba(0,0,0,.7);
      --bg-search:    #1e1f22;

      --text:         #f2f3f5;
      --text-muted:   #b5bac1;
      --text-dim:     #6d6f78;

      --accent:       #5865f2;
      --accent-hi:    #b5bfff;
      --accent-glow:  rgba(88,101,242,.22);
      --accent-glow2: rgba(88,101,242,.1);

      --green:        #23a559;
      --green-bg:     rgba(35,165,89,.12);
      --green-bdr:    rgba(35,165,89,.3);

      --amber:        #f0b232;
      --amber-bg:     rgba(240,178,50,.12);
      --amber-bdr:    rgba(240,178,50,.3);

      --red:          #f23f42;
      --red-bg:       rgba(242,63,66,.1);
      --red-bdr:      rgba(242,63,66,.3);

      --blue:         #00a8fc;
      --blue-bg:      rgba(0,168,252,.1);
      --blue-bdr:     rgba(0,168,252,.3);

      --border:       #1e1f22;
      --border-hi:    rgba(88,101,242,.5);

      --radius:       10px;
      --radius-sm:    6px;
      --t:            0.18s ease;

      --sidebar-w:    272px;

      --font-body:    'IBM Plex Sans', sans-serif;
      --font-display: 'Syne', sans-serif;
      --font-mono:    'JetBrains Mono', monospace;

      --shadow:       0 4px 24px rgba(0,0,0,.35);
      --shadow-lg:    0 16px 64px rgba(0,0,0,.5);
      --text-glow:    rgba(242,243,245,.12);
    }

    [data-theme="light"] {
      --bg:           #f5f7fc;
      --bg-sidebar:   #ffffff;
      --bg-card:      #eef2fb;
      --bg-code:      #f0f3fb;
      --bg-hover:     rgba(99,102,241,.07);
      --bg-active:    rgba(99,102,241,.11);
      --bg-overlay:   rgba(10,14,40,.65);
      --bg-search:    #f0f3fb;

      --text:         #0d1329;
      --text-muted:   #4a5980;
      --text-dim:     #b0bcd4;

      --accent:       #4f46e5;
      --accent-hi:    #4338ca;
      --accent-glow:  rgba(79,70,229,.12);
      --accent-glow2: rgba(79,70,229,.05);

      --green:        #059669;
      --green-bg:     rgba(5,150,105,.08);
      --green-bdr:    rgba(5,150,105,.2);

      --amber:        #d97706;
      --amber-bg:     rgba(217,119,6,.07);
      --amber-bdr:    rgba(217,119,6,.2);

      --red:          #dc2626;
      --red-bg:       rgba(220,38,38,.06);
      --red-bdr:      rgba(220,38,38,.18);

      --blue:         #2563eb;
      --blue-bg:      rgba(37,99,235,.06);
      --blue-bdr:     rgba(37,99,235,.18);

      --border:       #dde3f0;
      --border-hi:    rgba(79,70,229,.3);

      --shadow:       0 4px 20px rgba(0,0,0,.08);
      --shadow-lg:    0 16px 56px rgba(0,0,0,.14);
      --text-glow:    rgba(13,19,41,.14);
    }

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

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 88px;
    }

    ::-webkit-scrollbar { width: 5px; height: 5px; }
    ::-webkit-scrollbar-track { background: transparent; }
    ::-webkit-scrollbar-thumb { background: var(--border); border-radius: 9px; }
    ::-webkit-scrollbar-thumb:hover { background: var(--accent); }

    body {
      font-family: var(--font-body);
      background: var(--bg);
      color: var(--text);
      line-height: 1.7;
      display: flex;
      min-height: 100vh;
      font-size: 16px;
      text-shadow: 0 0 7px var(--text-glow);
      transition: background var(--t), color var(--t);
    }

    body::before {
      content: '';
      position: fixed;
      inset: 0;
      background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
      background-size: 48px 48px;
      opacity: 0.35;
      pointer-events: none;
      z-index: 0;
    }

    [data-theme="light"] body::before { opacity: 0.5; }

    .search-overlay {
      position: fixed;
      inset: 0;
      background: var(--bg-overlay);
      backdrop-filter: blur(6px);
      -webkit-backdrop-filter: blur(6px);
      z-index: 999;
      display: none;
      align-items: flex-start;
      justify-content: center;
      padding-top: 12vh;
      animation: fadeIn .15s ease;
    }
    .search-overlay.open { display: flex; }

    @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
    @keyframes slideDown { from { opacity: 0; transform: translateY(-16px); } to { opacity: 1; transform: translateY(0); } }

    .search-modal {
      width: 580px;
      max-width: 92vw;
      background: var(--bg-sidebar);
      border: 1px solid var(--border);
      border-radius: 14px;
      overflow: hidden;
      box-shadow: var(--shadow-lg), 0 0 0 1px rgba(99,102,241,.12);
      animation: slideDown .18s ease;
    }

    .search-header {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      padding: 0.9rem 1.1rem;
      border-bottom: 1px solid var(--border);
    }

    .search-header svg { color: var(--text-muted); flex-shrink: 0; }

    #search-input {
      flex: 1;
      background: none;
      border: none;
      outline: none;
      font-family: var(--font-body);
      font-size: 0.95rem;
      color: var(--text);
    }
    #search-input::placeholder { color: var(--text-muted); }

    .search-esc {
      font-size: 0.67rem;
      font-family: var(--font-mono);
      padding: 0.18rem 0.45rem;
      border: 1px solid var(--border);
      border-radius: 4px;
      color: var(--text-muted);
      flex-shrink: 0;
    }

    .search-results {
      max-height: 380px;
      overflow-y: auto;
      padding: 0.45rem;
    }

    .search-result {
      padding: 0.7rem 0.9rem;
      border-radius: 8px;
      cursor: pointer;
      transition: background var(--t);
      display: flex;
      flex-direction: column;
      gap: 0.2rem;
    }
    .search-result:hover,
    .search-result.sel { background: var(--bg-hover); }

    .sr-section {
      font-size: 0.68rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: .06em;
      color: var(--accent-hi);
      font-family: var(--font-body);
    }
    .sr-title {
      font-size: 0.875rem;
      font-weight: 500;
      color: var(--text);
    }
    .sr-preview {
      font-size: 0.78rem;
      color: var(--text-muted);
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .search-empty {
      text-align: center;
      padding: 2rem 1rem;
      color: var(--text-muted);
      font-size: 0.875rem;
    }

    .search-footer {
      border-top: 1px solid var(--border);
      padding: 0.6rem 1.1rem;
      display: flex;
      gap: 1.25rem;
      font-size: 0.7rem;
      color: var(--text-muted);
    }
    .search-footer span { display: flex; align-items: center; gap: 0.35rem; }
    .sf-key {
      font-family: var(--font-mono);
      font-size: 0.65rem;
      padding: 0.1rem 0.4rem;
      border: 1px solid var(--border);
      border-radius: 4px;
    }

    mark {
      background: var(--amber-bg);
      color: var(--amber);
      border-radius: 2px;
      padding: 0 1px;
    }

    aside {
      width: var(--sidebar-w);
      background: var(--bg-sidebar);
      position: fixed;
      top: 0; bottom: 0; left: 0;
      border-right: 1px solid var(--border);
      overflow-y: auto;
      z-index: 200;
      display: flex;
      flex-direction: column;
      transition: background var(--t), border-color var(--t);
    }

    .sb-top {
      padding: 1.1rem 1rem 0.8rem;
      border-bottom: 1px solid var(--border);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 0.5rem;
      position: sticky;
      top: 0;
      background: var(--bg-sidebar);
      z-index: 2;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 0.55rem;
      text-decoration: none;
    }

    .logo-mark {
      width: 34px; height: 34px;
      border-radius: 9px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      overflow: hidden;
      box-shadow: 0 0 16px rgba(99,102,241,.35);
    }

    .logo-mark img {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .logo-info { display: flex; flex-direction: column; }
    .logo-name {
      font-family: var(--font-display);
      font-weight: 800;
      font-size: 1.05rem;
      color: var(--text);
      line-height: 1;
      letter-spacing: -0.02em;
    }
    .logo-tag {
      font-size: 0.62rem;
      font-family: var(--font-mono);
      color: var(--accent-hi);
      margin-top: 0.15rem;
      opacity: 0.8;
    }

    .sb-controls { display: flex; gap: 0.45rem; }

    .icon-btn {
      width: 30px; height: 30px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: none;
      border: 1px solid var(--border);
      border-radius: 7px;
      color: var(--text-muted);
      cursor: pointer;
      transition: all var(--t);
      flex-shrink: 0;
    }
    .icon-btn:hover { border-color: var(--accent); color: var(--accent-hi); }

    .sb-search {
      margin: 0.6rem 0.75rem;
      display: flex;
      align-items: center;
      gap: 0.65rem;
      padding: 0.5rem 0.8rem;
      background: var(--bg-search);
      border: 1px solid var(--border);
      border-radius: 8px;
      color: var(--text-muted);
      font-size: 0.8rem;
      font-family: var(--font-body);
      cursor: pointer;
      transition: all var(--t);
      width: calc(100% - 1.5rem);
    }
    .sb-search:hover { border-color: var(--accent); color: var(--text); }
    .sb-search svg { flex-shrink: 0; }
    .sb-search-hint {
      margin-left: auto;
      font-family: var(--font-mono);
      font-size: 0.67rem;
      padding: 0.12rem 0.35rem;
      border: 1px solid var(--border);
      border-radius: 4px;
    }

    .sb-links {
      padding: 0 0.75rem 0.65rem;
      display: flex;
      gap: 0.4rem;
      flex-wrap: wrap;
      border-bottom: 1px solid var(--border);
    }

    .badge-link {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      padding: 0.28rem 0.6rem;
      border-radius: 6px;
      font-size: 0.7rem;
      font-weight: 500;
      text-decoration: none;
      transition: all var(--t);
      font-family: var(--font-mono);
    }
    .badge-link:hover { opacity: 0.8; transform: translateY(-1px); }

    .badge-pypi {
      background: var(--accent-glow2);
      color: var(--accent-hi);
      border: 1px solid var(--border-hi);
    }
    .badge-github {
      background: rgba(148,163,184,.07);
      color: var(--text-muted);
      border: 1px solid var(--border);
    }
    .badge-discord {
      background: rgba(88,101,242,.12);
      color: #aeb8ff;
      border: 1px solid rgba(88,101,242,.35);
    }

    .sb-nav {
      padding: 0.5rem 0 1rem;
      flex: 1;
      overflow-y: auto;
    }

    .nav-group { margin-bottom: 0.1rem; }

    .nav-group-label {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0.55rem 1rem 0.3rem;
      cursor: pointer;
      user-select: none;
    }
    .nav-group-label:hover .nav-group-title { color: var(--text); }

    .nav-group-title {
      font-size: 0.65rem;
      font-weight: 700;
      letter-spacing: .09em;
      text-transform: uppercase;
      color: var(--text-dim);
      transition: color var(--t);
    }
    .nav-chevron {
      color: var(--text-dim);
      transition: transform 0.2s ease;
      flex-shrink: 0;
    }
    .nav-group.closed .nav-chevron { transform: rotate(-90deg); }

    .nav-items {
      overflow: hidden;
      max-height: 9999px;
      transition: max-height 0.28s ease;
    }
    .nav-group.closed .nav-items { max-height: 0; }

    .sb-nav a {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.42rem 1rem 0.42rem 1.1rem;
      color: var(--text-muted);
      text-decoration: none;
      border-radius: 7px;
      font-size: 0.845rem;
      margin: 0 0.5rem;
      transition: all var(--t);
      position: relative;
    }
    .sb-nav a:hover { background: var(--bg-hover); color: var(--text); }
    .sb-nav a.active {
      background: var(--bg-active);
      color: var(--accent-hi);
      font-weight: 500;
    }
    .sb-nav a.active::before {
      content: '';
      position: absolute;
      left: 0; top: 50%;
      transform: translateY(-50%);
      width: 2px; height: 55%;
      background: var(--accent);
      border-radius: 2px;
    }

    .var-subnav a {
      font-size: 0.78rem;
      padding-left: 1.6rem;
      font-family: var(--font-mono);
      color: var(--text-muted);
    }
    .var-subnav a:hover { color: var(--accent-hi); }
    .var-subnav a.active { color: var(--accent-hi); }

    main {
      margin-left: var(--sidebar-w);
      padding: 3rem 4rem 6rem;
      max-width: none;
      width: auto;
      flex: 1;
      position: relative;
      z-index: 1;
      text-align: justify;
    }

    main p {
      font-size: 1rem;
    }

    main li {
      font-size: 0.96rem;
    }

    main h3 {
      font-size: 1.1rem;
    }

    main h4 {
      font-size: 0.9rem;
    }

    section {
      margin-bottom: 5.5rem;
      scroll-margin-top: 2rem;
    }

    .section-label {
      display: inline-flex;
      align-items: center;
      gap: 0.45rem;
      font-size: 0.68rem;
      font-weight: 700;
      letter-spacing: .09em;
      text-transform: uppercase;
      color: var(--accent-hi);
      margin-bottom: 0.65rem;
      font-family: var(--font-body);
    }
    .section-label::before {
      content: '';
      display: block;
      width: 16px; height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }

    h1 {
      font-family: var(--font-display);
      font-size: 3.8rem;
      font-weight: 800;
      letter-spacing: -0.04em;
      line-height: 1.1;
      margin-bottom: 1.1rem;
    }

    .section-title {
      font-family: var(--font-display);
      font-size: 1.85rem;
      font-weight: 700;
      letter-spacing: -0.025em;
      color: var(--text);
      border-bottom: 1px solid var(--border);
      padding-bottom: 0.8rem;
      margin-bottom: 1.75rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      scroll-margin-top: 2rem;
    }

    .section-title .anchor { opacity: 0; font-size: 1rem; font-weight: 400; color: var(--text-muted); text-decoration: none; transition: opacity var(--t); margin-left: 0.2rem; }
    .section-title:hover .anchor { opacity: 1; }

    #variables h2 {
      font-family: var(--font-mono);
      font-size: 1.2rem;
      color: var(--accent-hi);
      border: none;
      padding: 0;
      margin: 0 0 0.4rem;
      font-weight: 500;
      letter-spacing: 0;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    #variables h2 .anchor { font-family: var(--font-body); opacity: 0; font-size: 0.85rem; font-weight: 400; color: var(--text-muted); text-decoration: none; transition: opacity var(--t); margin-left: 0.2rem; }
    #variables h2:hover .anchor { opacity: 1; }

    h3 {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text);
      margin: 1.75rem 0 0.65rem;
      letter-spacing: -0.01em;
    }

    h4 {
      font-size: 0.78rem;
      font-weight: 700;
      letter-spacing: .07em;
      text-transform: uppercase;
      color: var(--text-muted);
      margin: 1.4rem 0 0.5rem;
    }

    p {
      color: var(--text-muted);
      margin-bottom: 0.9rem;
      line-height: 1.78;
      font-size: 0.93rem;
    }

    ul, ol { margin-left: 1.3rem; margin-bottom: 0.85rem; }
    li {
      color: var(--text-muted);
      font-size: 0.88rem;
      margin-bottom: 0.35rem;
      line-height: 1.65;
    }

    code {
      font-family: var(--font-mono);
      font-size: 0.8em;
      background: var(--bg-card);
      color: var(--accent-hi);
      padding: 0.14em 0.4em;
      border-radius: 4px;
      border: 1px solid var(--border);
    }

    strong { font-weight: 600; color: var(--text); }

    a { color: var(--accent-hi); text-decoration: none; }
    a:hover { text-decoration: underline; }

    .code-block {
      display: block;
      width: fit-content;
      min-width: 320px;
      max-width: min(100%, 760px);
      margin: 1.4rem 0;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      overflow: hidden;
      background: var(--bg-code);
      box-shadow: var(--shadow);
    }

    .code-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0.55rem 1rem;
      background: rgba(255,255,255,.024);
      border-bottom: 1px solid var(--border);
    }

    [data-theme="light"] .code-header { background: rgba(0,0,0,.03); }

    .code-lang {
      font-size: 0.68rem;
      font-family: var(--font-mono);
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .code-dot {
      width: 7px; height: 7px;
      border-radius: 50%;
      background: var(--accent);
      opacity: 0.7;
      flex-shrink: 0;
    }

    .copy-btn {
      display: flex;
      align-items: center;
      gap: 0.35rem;
      background: none;
      border: 1px solid var(--border);
      color: var(--text-muted);
      font-size: 0.68rem;
      font-family: var(--font-mono);
      padding: 0.22rem 0.55rem;
      border-radius: 5px;
      cursor: pointer;
      transition: all var(--t);
    }
    .copy-btn:hover { border-color: var(--accent); color: var(--accent-hi); }
    .copy-btn.ok { border-color: var(--green); color: var(--green); }

    pre {
      padding: 1.2rem 1.4rem;
      overflow-x: auto;
      margin: 0;
      background: transparent;
    }
    pre code {
      font-family: var(--font-mono);
      font-size: 0.84rem;
      color: #c8d4f5;
      line-height: 1.85;
      background: none;
      border: none;
      padding: 0;
    }

    .kw  { color: #c084fc; }
    .fn  { color: #67e8f9; }
    .st  { color: #86efac; }
    .cm  { color: #3a4e6e; font-style: italic; }
    .dsl { color: #fbbf24; font-weight: 500; }
    .var { color: #f472b6; }
    .pn  { color: #7a8aaf; }
    .nu  { color: #fb923c; }
    .ty  { color: #34d399; }

    [data-theme="light"] pre code  { color: #1e2a4a; }
    [data-theme="light"] .kw  { color: #7c3aed; }
    [data-theme="light"] .fn  { color: #0369a1; }
    [data-theme="light"] .st  { color: #166534; }
    [data-theme="light"] .cm  { color: #94a3b8; }
    [data-theme="light"] .dsl { color: #92400e; }
    [data-theme="light"] .var { color: #9d174d; }
    [data-theme="light"] .pn  { color: #64748b; }
    [data-theme="light"] .nu  { color: #c2410c; }
    [data-theme="light"] .ty  { color: #065f46; }

    .callout {
      display: flex;
      gap: 0.85rem;
      padding: 1rem 1.15rem;
      border-radius: 9px;
      margin: 1.25rem 0;
      font-size: 0.875rem;
      line-height: 1.65;
    }
    .callout-icon { flex-shrink: 0; margin-top: 0.08rem; }
    .callout p { margin: 0; color: inherit; font-size: inherit; line-height: inherit; }

    .callout-info  { background: var(--blue-bg);  border: 1px solid var(--blue-bdr);  color: var(--blue); }
    .callout-tip   { background: var(--green-bg); border: 1px solid var(--green-bdr); color: var(--green); }
    .callout-warn  { background: var(--amber-bg); border: 1px solid var(--amber-bdr); color: var(--amber); }
    .callout-danger{ background: var(--red-bg);   border: 1px solid var(--red-bdr);   color: var(--red); }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
      gap: 1rem;
      margin: 1.5rem 0;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 1.15rem 1.2rem;
      transition: all var(--t);
    }
    .feature-card:hover {
      border-color: var(--border-hi);
      transform: translateY(-2px);
      box-shadow: 0 6px 28px rgba(99,102,241,.12);
    }
    .fc-icon {
      font-size: 1.4rem;
      margin-bottom: 0.65rem;
      display: block;
    }
    .feature-card h4 {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text);
      margin: 0 0 0.35rem;
      text-transform: none;
      letter-spacing: 0;
    }
    .feature-card p { font-size: 0.8rem; margin: 0; line-height: 1.55; }

    .param-table {
      width: 100%;
      border-collapse: collapse;
      margin: 1rem 0;
      font-size: 0.85rem;
      overflow: hidden;
      border-radius: var(--radius);
      border: 1px solid var(--border);
    }
    .param-table th {
      text-align: left;
      padding: 0.65rem 1rem;
      background: var(--bg-card);
      border-bottom: 1px solid var(--border);
      color: var(--text-muted);
      font-size: 0.68rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: .07em;
    }
    .param-table td {
      padding: 0.7rem 1rem;
      border-bottom: 1px solid var(--border);
      vertical-align: top;
    }
    .param-table tr:last-child td { border-bottom: none; }
    .param-table tr:hover td { background: var(--bg-hover); }

    .pn-name { font-family: var(--font-mono); color: var(--accent-hi); font-size: 0.8rem; }
    .pn-type { font-family: var(--font-mono); color: #fb923c; font-size: 0.75rem; }
    .pn-desc { color: var(--text-muted); font-size: 0.83rem; }
    .pn-default {
      font-size: 0.65rem;
      font-family: var(--font-mono);
      background: var(--accent-glow);
      color: var(--accent-hi);
      padding: 0.1rem 0.4rem;
      border-radius: 4px;
      margin-left: 0.4rem;
    }

    .var-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 1.5rem;
      margin: 1.6rem 0;
      transition: border-color var(--t);
    }
    .var-card:hover { border-color: var(--border-hi); }

    .var-card-head {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 1rem;
      margin-bottom: 0.75rem;
    }

    .var-badge {
      font-size: 0.67rem;
      font-family: var(--font-mono);
      font-weight: 500;
      padding: 0.17rem 0.5rem;
      border-radius: 999px;
      border: 1px solid;
      white-space: nowrap;
      flex-shrink: 0;
    }
    .badge-static { background: var(--green-bg); color: var(--green); border-color: var(--green-bdr); }
    .badge-fn     { background: var(--amber-bg); color: var(--amber); border-color: var(--amber-bdr); }
    .badge-dynamic{ background: var(--blue-bg); color: var(--blue); border-color: var(--blue-bdr); }

    .step-list { display: flex; flex-direction: column; gap: 0.9rem; margin: 1.25rem 0; }

    .step-item { display: flex; gap: 0.9rem; align-items: flex-start; }

    .step-num {
      width: 26px; height: 26px;
      border-radius: 50%;
      background: var(--accent-glow);
      border: 1px solid var(--border-hi);
      color: var(--accent-hi);
      font-size: 0.72rem;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      margin-top: 0.1rem;
      font-family: var(--font-mono);
    }

    .step-body h4 {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text);
      margin: 0 0 0.25rem;
      text-transform: none;
      letter-spacing: 0;
    }
    .step-body p { font-size: 0.82rem; margin: 0; }

    .flow-wrap {
      overflow-x: auto;
      padding: 1rem 0;
    }

    .flow {
      display: flex;
      align-items: center;
      gap: 0;
      min-width: fit-content;
    }

    .flow-node {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 9px;
      padding: 0.7rem 1rem;
      text-align: center;
      min-width: 105px;
      transition: all var(--t);
    }
    .flow-node:hover { border-color: var(--border-hi); }
    .flow-node.hi { background: var(--accent-glow2); border-color: var(--border-hi); }

    .fn-title { font-size: 0.8rem; font-weight: 600; color: var(--text); }
    .fn-sub   { font-size: 0.68rem; color: var(--text-muted); margin-top: 0.15rem; }

    .flow-arr {
      color: var(--text-dim);
      padding: 0 0.4rem;
      font-size: 1.1rem;
      flex-shrink: 0;
    }

    .arch-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
      gap: 0.85rem;
      margin: 1.25rem 0;
    }

    .arch-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 1rem 1.1rem;
    }
    .arch-card-label {
      font-size: 0.67rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: .08em;
      color: var(--accent-hi);
      margin-bottom: 0.35rem;
      font-family: var(--font-mono);
    }
    .arch-card h4 {
      font-size: 0.875rem;
      color: var(--text);
      margin: 0 0 0.3rem;
      text-transform: none;
      letter-spacing: 0;
      font-weight: 600;
    }
    .arch-card p { font-size: 0.78rem; margin: 0; }

    .divider { height: 1px; background: var(--border); margin: 2.5rem 0; }

    .name-easter-egg {
      max-width: 560px;
      margin: 1rem auto 0;
      color: var(--text-muted);
      text-align: center;
      font-size: 0.78rem;
    }

    .name-easter-egg summary {
      display: inline-block;
      color: var(--text-dim);
      cursor: pointer;
      font-family: var(--font-mono);
      font-size: 0.7rem;
      letter-spacing: 0.03em;
      transition: color var(--t);
    }

    .name-easter-egg summary:hover,
    .name-easter-egg[open] summary {
      color: var(--accent-hi);
    }

    .name-easter-egg p {
      margin: 0.7rem auto 0;
      max-width: 520px;
      font-size: 0.78rem;
      line-height: 1.7;
    }

    .tag-row { display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 1rem 0; }
    .tag {
      font-size: 0.7rem;
      font-family: var(--font-mono);
      padding: 0.18rem 0.55rem;
      border-radius: 999px;
      border: 1px solid var(--border);
      color: var(--text-muted);
    }

    .inline-highlight {
      background: var(--accent-glow);
      color: var(--accent-hi);
      padding: 0.05em 0.3em;
      border-radius: 3px;
      font-size: 0.85em;
      font-family: var(--font-mono);
    }

    .hero-tagline {
      font-size: 1.3rem;
      color: var(--text-muted);
      max-width: 1000px;
      margin: 0 auto 1.75rem;
      line-height: 1.6;
      text-align: center;
    }

    .hero-actions {
      display: flex;
      gap: 0.75rem;
      flex-wrap: wrap;
      align-items:center;
      justify-content: center;
      margin-bottom: 2.5rem;
    }

    #overview > .section-label,
    #overview > h1 {
      text-align: center;
    }

    .video-wrap {
      margin: 1.5rem auto 2rem;
      border: 1px solid var(--border);
      border-radius: 14px;
      overflow: hidden;
      background: var(--bg-card);
      box-shadow: var(--shadow);
      max-width: 800px;
    }

    .video-wrap iframe {
      display: block;
      width: 100%;
      height: 450px;
      border: 0;
      background: #000;
    }

    .video-disclaimer {
      margin: -1.25rem 0 2rem;
      color: var(--text-muted);
      font-size: 0.7rem;
      line-height: 1.5;
      text-align: center;
    }

    @media (max-width: 640px) {
      .video-wrap iframe {
        height: 260px;
      }
    }

    .ver-badge {
      display:inline-flex;
      align-items:center;
      padding:0.35rem 0.8rem;
      border:1px solid var(--accent);
      border-radius:999px;
      color:var(--accent);
      font-family:var(--font-mono);
      font-size:0.75rem;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: var(--accent);
      color: white;
      padding: 0.6rem 1.25rem;
      border-radius: 8px;
      font-weight: 600;
      font-size: 0.875rem;
      text-decoration: none;
      transition: all var(--t);
      font-family: var(--font-body);
    }
    .btn-primary:hover { background: #5153e5; transform: translateY(-1px); text-decoration: none; }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: transparent;
      color: var(--text-muted);
      padding: 0.6rem 1.25rem;
      border-radius: 8px;
      font-weight: 500;
      font-size: 0.875rem;
      text-decoration: none;
      transition: all var(--t);
      border: 1px solid var(--border);
      font-family: var(--font-body);
    }
    .btn-secondary:hover { color: var(--text); border-color: var(--border-hi); text-decoration: none; }

    .compare-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1rem;
      margin: 1.25rem 0;
    }
    .compare-col {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 1.2rem;
    }
    .compare-col h4 {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text);
      margin: 0 0 0.85rem;
      text-transform: none;
      letter-spacing: 0;
      display: flex;
      align-items: center;
      gap: 0.4rem;
    }
    .compare-col li { font-size: 0.82rem; margin-bottom: 0.45rem; }

    .bp-list { display: flex; flex-direction: column; gap: 0.85rem; margin: 1.25rem 0; }

    .bp-card {
      display: flex;
      gap: 0.9rem;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 9px;
      padding: 1rem 1.2rem;
      transition: border-color var(--t);
    }
    .bp-card:hover { border-color: var(--border-hi); }

    .bp-icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 0.05rem; }
    .bp-body h4 { font-size: 0.875rem; font-weight: 600; color: var(--text); margin: 0 0 0.3rem; text-transform: none; letter-spacing: 0; }
    .bp-body p  { font-size: 0.81rem; margin: 0; }

    @media (max-width: 900px) {
      main { margin-left: 0; padding: 2rem 1.5rem 4rem; }
      aside { transform: translateX(-100%); transition: transform .3s ease; }
      aside.sb-open { transform: translateX(0); }
      .mob-menu-btn { display: flex !important; }
    }

    .mob-menu-btn {
      display: none;
      position: fixed;
      top: 0.85rem; left: 0.85rem;
      z-index: 300;
      background: var(--bg-sidebar);
      border: 1px solid var(--border);
      border-radius: 8px;
      width: 36px; height: 36px;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--text-muted);
    }

    .back-to-top {
      position: fixed;
      right: 1.25rem;
      bottom: 1.25rem;
      z-index: 150;
      width: 38px;
      height: 38px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--border);
      border-radius: 9px;
      background: var(--bg-sidebar);
      color: var(--text-muted);
      cursor: pointer;
      opacity: 0;
      visibility: hidden;
      transform: translateY(8px);
      transition: opacity var(--t), visibility var(--t), transform var(--t), color var(--t), border-color var(--t);
      box-shadow: var(--shadow);
    }

    .back-to-top.visible {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .back-to-top:hover {
      color: var(--accent-hi);
      border-color: var(--border-hi);
    }

    @media (max-width: 1260px) {
      .back-to-top {
        right: 1.25rem;
      }
    }

    @media (max-width: 900px) {
      .back-to-top {
        right: 1rem;
        bottom: 1rem;
      }
    }