:root {
      --bg: #f4f7fb;
      --bg-alt: #ffffff;
      --primary: #4f46e5;
      --primary-soft: #eef2ff;
      --accent: #22c55e;
      --text: #111827;
      --text-muted: #6b7280;
      --border: #e5e7eb;
      --radius-lg: 18px;
      --radius-md: 12px;
      --shadow-soft: 0 18px 35px rgba(15,23,42,0.09);
      --shadow-card: 0 14px 30px rgba(15,23,42,0.06);
    }
    html[data-theme="dark"] {
      --bg: #020617;
      --bg-alt: #020617;
      --primary: #6366f1;
      --primary-soft: rgba(79,70,229,0.16);
      --accent: #22c55e;
      --text: #e5e7eb;
      --text-muted: #9ca3af;
      --border: #1f2933;
      --shadow-soft: 0 18px 35px rgba(0,0,0,0.7);
      --shadow-card: 0 14px 30px rgba(0,0,0,0.7);
    }

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

    body {
      margin: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at top left, #e0f2fe 0, transparent 40%),
        radial-gradient(circle at bottom right, #e0f2fe 0, transparent 45%),
        var(--bg);
    }
    html[data-theme="dark"] body {
      background:
        radial-gradient(circle at top left, rgba(56,189,248,0.16) 0, transparent 40%),
        radial-gradient(circle at bottom right, rgba(129,140,248,0.16) 0, transparent 45%),
        var(--bg);
    }

    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    .container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

    .site-header { position: sticky; top: 0; z-index: 20; backdrop-filter: blur(18px); background: rgba(244,247,251,0.9); border-bottom: 1px solid rgba(209,213,219,0.6); }
    html[data-theme="dark"] .site-header { background: rgba(15,23,42,0.92); border-bottom: 1px solid rgba(30,64,175,0.8); }
    .header-inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 20px; gap: 16px; position: relative; }
    .logo { display: inline-flex; align-items: center; border: none; background: none; }
    .logo-img { height: 52px; width: auto; display: block; user-select: none; }
    .main-nav { display: flex; gap: 18px; font-size: 0.95rem; color: var(--text-muted); align-items: center; }
    .main-nav a { position: relative; padding: 4px 0; }
    .main-nav a::after { content: ""; position: absolute; left: 0; bottom: -3px; width: 0; height: 2px; border-radius: 999px; background: linear-gradient(to right, var(--primary), var(--accent)); transition: width 0.18s ease-out; }
    .main-nav a:hover::after, .main-nav a.is-current::after { width: 100%; }

    .theme-switch { display: inline-flex; align-items: center; gap: 6px; border: none; background: transparent; cursor: pointer; font-size: 0.8rem; color: var(--text-muted); padding: 0; border-radius: 999px; -webkit-tap-highlight-color: transparent; }
    .theme-switch:hover .theme-switch-track { box-shadow: 0 6px 14px rgba(148,163,184,0.55), 0 0 0 1px rgba(148,163,184,0.3); }
    .theme-switch:active .theme-switch-track { transform: scale(0.97); }
    .theme-switch:focus-visible .theme-switch-track { outline: 2px solid rgba(79,70,229,0.7); outline-offset: 3px; }
    .theme-switch-track { width: 44px; height: 24px; border-radius: 999px; background: radial-gradient(circle at 30% 30%, #fff, rgba(148,163,184,0.3)); position: relative; display: inline-flex; align-items: center; padding: 3px; box-shadow: 0 4px 10px rgba(148,163,184,0.5), inset 0 0 0 1px rgba(148,163,184,0.45); transition: background-color 0.22s cubic-bezier(0.22,0.61,0.36,1), box-shadow 0.22s, transform 0.12s; }
    .theme-switch-thumb { width: 18px; height: 18px; border-radius: 999px; background: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 0.7rem; color: #4b5563; transform: translateX(0); box-shadow: 0 3px 6px rgba(15,23,42,0.35), 0 0 0 1px rgba(148,163,184,0.6); transition: transform 0.22s cubic-bezier(0.22,0.61,0.36,1), background-color 0.22s, color 0.22s, box-shadow 0.22s; }
    .theme-switch.is-dark .theme-switch-track { background: radial-gradient(circle at 30% 30%, rgba(248,250,252,0.25), #4f46e5); box-shadow: 0 8px 18px rgba(79,70,229,0.7), inset 0 0 0 1px rgba(191,219,254,0.5); }
    .theme-switch.is-dark .theme-switch-thumb { transform: translateX(20px); background: #020617; color: #e5e7eb; box-shadow: 0 4px 10px rgba(15,23,42,0.85), 0 0 0 1px rgba(55,65,81,0.9); }
    html[data-theme="dark"] .theme-switch-track { background: radial-gradient(circle at 30% 30%, rgba(248,250,252,0.12), rgba(15,23,42,0.9)); box-shadow: 0 4px 10px rgba(15,23,42,0.7), inset 0 0 0 1px rgba(30,64,175,0.6); }

    main { padding: 28px 0 52px; }

    .breadcrumbs { font-size: 0.86rem; color: var(--text-muted); margin-bottom: 14px; }
    .breadcrumbs a { color: var(--text-muted); }
    .breadcrumbs a:hover { color: var(--primary); }
    .breadcrumbs-separator { margin: 0 4px; opacity: 0.7; }

    .article-hero { padding-bottom: 20px; }
    .article-hero-inner {
      display: grid;
      grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
      gap: 24px;
      align-items: flex-start;
    }

    .article-hero-title { margin: 0 0 8px; font-size: clamp(1.8rem, 3.2vw, 2.4rem); letter-spacing: -0.03em; line-height: 1.2; }
    .article-hero-deck { margin: 0; color: var(--text-muted); line-height: 1.65; max-width: 560px; font-size: 1.02rem; }
    .article-hero-deck strong { color: var(--text); font-weight: 600; }

    .tool-pill { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; background: rgba(255,255,255,0.96); border: 1px solid rgba(148,163,184,0.5); }
    html[data-theme="dark"] .tool-pill { background: rgba(15,23,42,0.96); border-color: #1f2937; }
    .tool-pill i { font-size: 0.8rem; }

    .article-hero-side { border-radius: var(--radius-lg); background: radial-gradient(circle at top left, #eef2ff, #ffffff); border: 1px solid rgba(199,210,254,0.9); box-shadow: var(--shadow-soft); padding: 16px 16px 14px; }
    html[data-theme="dark"] .article-hero-side { background: radial-gradient(circle at top left, rgba(15,23,42,0.9), #020617); border-color: rgba(37,99,235,0.8); box-shadow: 0 18px 40px rgba(0,0,0,0.9); }
    .article-hero-side h2 { margin: 0 0 10px; font-size: 1rem; }
    .article-hero-list { list-style: none; padding: 0; margin: 0; font-size: 0.9rem; color: var(--text-muted); }
    .article-hero-list li { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 7px; }
    .article-hero-list li:last-child { margin-bottom: 0; }
    .article-hero-list i { margin-top: 3px; font-size: 0.85rem; color: var(--primary); flex-shrink: 0; }

    .article-byline {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin: 0 0 16px;
      padding: 12px 16px;
      border-radius: var(--radius-md);
      background: rgba(255,255,255,0.7);
      border: 1px solid var(--border);
      backdrop-filter: blur(8px);
    }
    html[data-theme="dark"] .article-byline {
      background: rgba(15,23,42,0.7);
      border-color: #1f2937;
    }
    .byline-left { display: flex; align-items: center; gap: 10px; }
    .byline-right { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
    .byline-avatar { width: 34px; height: 34px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); font-size: 0.72rem; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; border: 2px solid rgba(79,70,229,0.15); }
    html[data-theme="dark"] .byline-avatar { background: rgba(79,70,229,0.2); color: #c7d2fe; }
    .byline-name { font-size: 0.88rem; font-weight: 600; color: var(--text); }
    .byline-role { font-size: 0.82rem; color: var(--text-muted); }
    .byline-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
    .byline-meta .tool-pill { font-size: 0.8rem; }
    .article-share { display: flex; align-items: center; gap: 6px; }
    .share-label { font-size: 0.78rem; color: var(--text-muted); }
    .share-btn { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 999px; border: 1px solid var(--border); background: var(--bg-alt); color: var(--text-muted); font-size: 0.75rem; cursor: pointer; transition: border-color 0.14s, color 0.14s, background 0.14s; }
    .share-btn:hover { border-color: rgba(79,70,229,0.8); color: var(--primary); background: var(--primary-soft); }

    .article-cover { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-soft); border: 1px solid var(--border); aspect-ratio: 16/9; margin-bottom: 16px; }
    .article-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }

    .article-col { display: flex; flex-direction: column; min-width: 0; }

    .page-main-grid {
      margin-top: 26px;
      display: grid;
      grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.7fr);
      gap: 24px;
      align-items: flex-start;
    }
    .page-main-grid > aside {
      position: sticky;
      top: 96px;
      align-self: flex-start;
      height: calc(100vh - 120px);
    }

    .sticky-rail {
      display: flex;
      flex-direction: column;
      gap: 16px;
      max-height: 100%;
      overflow-y: auto;
      padding-right: 4px;
    }
    .sticky-rail::-webkit-scrollbar { width: 3px; }
    .sticky-rail::-webkit-scrollbar-track { background: transparent; }
    .sticky-rail::-webkit-scrollbar-thumb { background: var(--border); border-radius: 999px; }

    .article-toc-card, .related-tools-card, .related-tools-mobile {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      box-shadow: none;
      padding: 16px 16px 14px;
    }
    html[data-theme="dark"] .article-toc-card, html[data-theme="dark"] .related-tools-card, html[data-theme="dark"] .related-tools-mobile {
      background: rgba(15,23,42,0.96);
      border-color: #1f2937;
      box-shadow:
        0 0 40px 8px rgba(0,0,0,0.35),
        0 0 80px 16px rgba(37,99,235,0.12),
        0 0 140px 30px rgba(0,0,0,0.2);
    }

    .article-toc-header { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
    .article-toc-title { margin: 0; font-size: 0.96rem; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
    .article-toc-title-icon { width: 22px; height: 22px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; background: var(--primary-soft); color: var(--primary); font-size: 0.9rem; }

    .article-toc { list-style: none; padding: 0; margin: 0; font-size: 0.9rem; }
    .article-toc li + li { margin-top: 4px; }
    .article-toc a { display: flex; align-items: center; gap: 6px; padding: 4px 6px; border-radius: 999px; color: var(--text-muted); transition: background 0.12s ease-out, color 0.12s ease-out; }
    .article-toc a::before { content: ""; width: 6px; height: 6px; border-radius: 999px; background: #c7d2fe; flex-shrink: 0; transition: background 0.12s ease-out, transform 0.12s ease-out; }
    .article-toc a:hover { color: var(--primary); background: rgba(239,246,255,0.8); }
    html[data-theme="dark"] .article-toc a:hover { background: rgba(30,64,175,0.3); }
    .article-toc a.is-active { color: var(--primary); background: rgba(224,231,255,0.9); font-weight: 500; }
    .article-toc a.is-active::before { background: var(--primary); transform: scale(1.1); }
    html[data-theme="dark"] .article-toc a.is-active { background: rgba(37,99,235,0.4); color: #e5e7eb; }

    .related-tools-card h2, .related-tools-mobile h2 { margin: 0 0 8px; font-size: 0.96rem; }
    .related-tools-card p, .related-tools-mobile p { margin: 0 0 10px; font-size: 0.9rem; color: var(--text-muted); }
    .related-list { list-style: none; padding: 0; margin: 0; font-size: 0.9rem; }
    .related-list li + li { margin-top: 4px; }
    .related-list a { display: flex; align-items: center; gap: 8px; padding: 4px; border-radius: 999px; color: var(--text-muted); transition: background 0.12s ease-out, color 0.12s ease-out; }
    .related-icon { width: 20px; height: 20px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; background: var(--primary-soft); color: var(--primary); font-size: 0.8rem; flex-shrink: 0; }
    .related-list a:hover { color: var(--primary); background: rgba(239,246,255,0.8); }
    html[data-theme="dark"] .related-list a:hover { background: rgba(30,64,175,0.3); }

    .related-tools-mobile { display: none; }

    .tool-article {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-card);
      padding: 22px 20px 20px;
    }
    @media (min-width: 720px) { .tool-article { padding: 26px 26px 22px; } }
    html[data-theme="dark"] .tool-article { background: rgba(15,23,42,0.98); border-color: var(--border); }

    .tool-article h2 { font-size: 1.25rem; margin: 0 0 10px; letter-spacing: -0.01em; position: relative; padding-bottom: 6px; }
    .tool-article h2::after { content: ""; position: absolute; left: 0; bottom: 0; width: 54px; height: 2px; border-radius: 999px; background: linear-gradient(90deg, var(--primary), rgba(79,70,229,0)); }
    .tool-article h3 { font-size: 1.05rem; margin: 18px 0 6px; letter-spacing: -0.01em; position: relative; padding-top: 2px; }
    .tool-article h3::after { content: ""; display: block; margin-top: 5px; width: 40px; height: 2px; border-radius: 999px; background: linear-gradient(90deg, #6366f1, rgba(99,102,241,0)); }
    .tool-article p { margin: 0 0 12px; font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; }
    .tool-article p:last-child { margin-bottom: 0; }
    .tool-article strong { color: var(--text); }

    .tool-article ul { margin: 0 0 12px; padding: 0; list-style: none; font-size: 0.95rem; color: var(--text-muted); }
    .tool-article li { margin-bottom: 6px; position: relative; padding-left: 18px; line-height: 1.65; }
    .tool-article li::before { content: ""; position: absolute; left: 3px; top: 0.7em; width: 6px; height: 6px; border-radius: 999px; background: var(--primary); box-shadow: 0 0 0 4px rgba(129,140,248,0.18); }

    .article-lead { font-size: 1rem; color: var(--text); margin-bottom: 14px; }
    .tool-article-divider { height: 1px; border: 0; background: linear-gradient(to right, rgba(209,213,219,0.9), transparent); margin: 8px 0 16px; }

    .tool-article code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.875em; background: var(--primary-soft); color: var(--primary); padding: 2px 6px; border-radius: 5px; white-space: nowrap; }
    html[data-theme="dark"] .tool-article code { background: rgba(79,70,229,0.18); color: #c7d2fe; }

    .tool-article pre { background: #0f172a; color: #e2e8f0; border-radius: var(--radius-md); padding: 18px 20px; overflow-x: auto; margin: 14px 0; font-size: 0.86rem; line-height: 1.65; border: 1px solid rgba(30,64,175,0.4); position: relative; }
    html[data-theme="dark"] .tool-article pre { background: #020617; border-color: rgba(30,64,175,0.6); }
    .tool-article pre[data-lang]::before { content: attr(data-lang); position: absolute; top: 10px; right: 14px; font-size: 0.68rem; font-family: system-ui, sans-serif; color: #64748b; text-transform: uppercase; letter-spacing: 0.05em; }
    .tool-article pre code { background: none; color: inherit; padding: 0; font-size: inherit; border-radius: 0; white-space: pre; }

    .tool-article blockquote { margin: 14px 0; padding: 14px 18px 14px 20px; border-left: 3px solid var(--primary); background: var(--primary-soft); border-radius: 0 var(--radius-md) var(--radius-md) 0; font-size: 1rem; line-height: 1.65; color: var(--text); }
    html[data-theme="dark"] .tool-article blockquote { background: rgba(79,70,229,0.12); }
    .tool-article blockquote cite { display: block; margin-top: 7px; font-size: 0.8rem; color: var(--text-muted); font-style: normal; }
    .tool-article blockquote cite::before { content: "— "; }

    .tool-article .pullquote { margin: 16px 0; padding: 16px 20px; text-align: center; border-top: 2px solid var(--primary); border-bottom: 2px solid var(--primary); font-size: 1.08rem; line-height: 1.5; font-weight: 500; color: var(--text); letter-spacing: -0.01em; }

    .tool-article ol { margin: 0 0 12px; padding: 0; list-style: none; counter-reset: ol-counter; font-size: 0.95rem; color: var(--text-muted); }
    .tool-article ol li { position: relative; padding-left: 30px; margin-bottom: 7px; counter-increment: ol-counter; line-height: 1.65; }
    .tool-article ol li::before { content: counter(ol-counter); position: absolute; left: 0; top: 0.1em; width: 20px; height: 20px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); font-size: 0.72rem; font-weight: 700; display: flex; align-items: center; justify-content: center; box-shadow: none; }
    html[data-theme="dark"] .tool-article ol li::before { background: rgba(79,70,229,0.2); color: #c7d2fe; }

    .article-section-pill { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); font-size: 0.78rem; font-weight: 500; }

    .privacy-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin: 10px 0 16px; }
    .privacy-item { display: flex; align-items: flex-start; gap: 10px; padding: 10px 12px; border-radius: 12px; border: 1px solid var(--border); background: #f9fafb; }
    html[data-theme="dark"] .privacy-item { background: rgba(15,23,42,0.98); }
    .privacy-icon { width: 34px; height: 34px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; background: var(--primary-soft); color: var(--primary); font-size: 0.9rem; flex-shrink: 0; }
    .privacy-text { font-size: 0.88rem; color: var(--text-muted); line-height: 1.55; }
    .privacy-text h4 { margin: 0 0 4px; font-size: 0.9rem; color: var(--text); font-weight: 600; }
    .privacy-text p { margin: 0; }

    .stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 12px 0 16px; }
    .stat-card { background: var(--primary-soft); border: 1px solid rgba(199,210,254,0.7); border-radius: var(--radius-md); padding: 14px 12px; text-align: center; }
    html[data-theme="dark"] .stat-card { background: rgba(79,70,229,0.12); border-color: rgba(79,70,229,0.3); }
    .stat-num { font-size: 1.6rem; font-weight: 700; letter-spacing: -0.03em; color: var(--primary); line-height: 1; }
    .stat-label { font-size: 0.76rem; color: var(--text-muted); margin-top: 4px; }

    .comparison { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 12px 0 16px; }
    .comparison-card { border-radius: var(--radius-md); padding: 14px; border: 1px solid var(--border); }
    .comparison-card.pro { background: #f0fdf4; border-color: #bbf7d0; }
    .comparison-card.con { background: #fff1f2; border-color: #fecdd3; }
    html[data-theme="dark"] .comparison-card.pro { background: rgba(34,197,94,0.08); border-color: rgba(34,197,94,0.25); }
    html[data-theme="dark"] .comparison-card.con { background: rgba(244,63,94,0.08); border-color: rgba(244,63,94,0.25); }
    .comparison-card h4 { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; margin: 0 0 9px; }
    .comparison-card.pro h4 { color: #166534; }
    .comparison-card.con h4 { color: #9f1239; }
    html[data-theme="dark"] .comparison-card.pro h4 { color: #86efac; }
    html[data-theme="dark"] .comparison-card.con h4 { color: #fda4af; }
    .comparison-card ul { margin: 0; padding: 0; list-style: none; }
    .comparison-card ul li { font-size: 0.88rem; color: var(--text-muted); line-height: 1.5; margin-bottom: 5px; display: flex; align-items: flex-start; gap: 6px; padding-left: 0; }
    .comparison-card ul li::before { display: none; }
    .comparison-card ul li i { flex-shrink: 0; margin-top: 2px; font-size: 0.78rem; }
    .comparison-card.pro ul li i { color: var(--accent); }
    .comparison-card.con ul li i { color: #f43f5e; }

    .callout { display: flex; gap: 12px; padding: 12px 14px; border-radius: var(--radius-md); margin: 12px 0; font-size: 0.92rem; line-height: 1.6; }
    .callout-icon { font-size: 0.95rem; flex-shrink: 0; margin-top: 1px; }
    .callout-body { flex: 1; min-width: 0; }
    .callout-body strong { display: block; margin-bottom: 2px; font-size: 0.84rem; }
    .callout-info    { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af; }
    .callout-info .callout-icon { color: #3b82f6; }
    .callout-warning { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; }
    .callout-warning .callout-icon { color: #f59e0b; }
    .callout-tip     { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }
    .callout-tip .callout-icon { color: var(--accent); }
    .callout-note    { background: #f9fafb; border: 1px dashed rgba(148,163,184,0.7); color: var(--text-muted); }
    .callout-note .callout-icon { color: var(--primary); }
    html[data-theme="dark"] .callout-info    { background: rgba(29,78,216,0.13);  border-color: rgba(37,99,235,0.4);   color: #93c5fd; }
    html[data-theme="dark"] .callout-warning { background: rgba(245,158,11,0.1);  border-color: rgba(245,158,11,0.35); color: #fcd34d; }
    html[data-theme="dark"] .callout-tip     { background: rgba(34,197,94,0.08);  border-color: rgba(34,197,94,0.3);   color: #86efac; }
    html[data-theme="dark"] .callout-note    { background: rgba(15,23,42,0.9);    border-color: rgba(51,65,85,0.9);    }
    .article-intent-note { margin: 14px 0 18px; }
    .article-intent-note .callout-body strong { color: var(--text); }

    .table-wrap { overflow-x: auto; margin: 12px 0; border-radius: var(--radius-md); border: 1px solid var(--border); box-shadow: var(--shadow-card); }
    .tool-article table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
    .tool-article th { background: var(--primary-soft); color: var(--primary); font-weight: 600; text-align: left; padding: 9px 12px; font-size: 0.8rem; letter-spacing: 0.02em; white-space: nowrap; }
    html[data-theme="dark"] .tool-article th { background: rgba(79,70,229,0.2); color: #c7d2fe; }
    .tool-article td { padding: 8px 12px; border-top: 1px solid var(--border); color: var(--text-muted); line-height: 1.5; vertical-align: middle; }
    .tool-article tr:hover td { background: rgba(79,70,229,0.03); }
    html[data-theme="dark"] .tool-article tr:hover td { background: rgba(79,70,229,0.07); }
    .badge { display: inline-flex; align-items: center; padding: 2px 7px; border-radius: 999px; font-size: 0.73rem; font-weight: 500; white-space: nowrap; }
    .badge-green { background: #f0fdf4; color: #166534; }
    .badge-red   { background: #fff1f2; color: #9f1239; }
    html[data-theme="dark"] .badge-green { background: rgba(34,197,94,0.1);  color: #86efac; }
    html[data-theme="dark"] .badge-red   { background: rgba(244,63,94,0.1);  color: #fda4af; }

    .tool-article figure { margin: 14px 0; }
    .tool-article figure img { width: 100%; border-radius: var(--radius-md); border: 1px solid var(--border); box-shadow: var(--shadow-card); }
    .tool-article figcaption { margin-top: 7px; font-size: 0.8rem; color: var(--text-muted); text-align: center; line-height: 1.5; }

    .steps-list { counter-reset: step; display: flex; flex-direction: column; gap: 10px; padding: 0; margin: 12px 0 16px; list-style: none; }
    .steps-list li { padding: 11px 12px 11px 50px; border-radius: 14px; border: 1px solid var(--border); background: #f9fafb; box-shadow: 0 8px 20px rgba(15,23,42,0.04); position: relative; counter-increment: step; font-size: 0.93rem; color: var(--text-muted); line-height: 1.6; overflow: hidden; }
    html[data-theme="dark"] .steps-list li { background: radial-gradient(circle at top left, rgba(79,70,229,0.2), #020617); box-shadow: 0 10px 22px rgba(0,0,0,0.8); }
    .steps-list li::before { content: counter(step); position: absolute; left: 13px; top: 50%; transform: translateY(-50%); width: 26px; height: 26px; border-radius: 999px; background: linear-gradient(135deg, var(--primary), #6366f1); color: #f9fafb; display: inline-flex; align-items: center; justify-content: center; font-size: 0.82rem; font-weight: 600; box-shadow: 0 8px 18px rgba(79,70,229,0.35); }
    .steps-list li:nth-child(odd) { background: linear-gradient(135deg, #f9fafb, #eff6ff); }
    html[data-theme="dark"] .steps-list li:nth-child(odd) { background: linear-gradient(135deg, rgba(15,23,42,0.96), rgba(30,64,175,0.35)); }
    .steps-list li strong { display: block; margin-bottom: 2px; color: var(--text); }

    .tool-article dl { margin: 0 0 12px; }
    .tool-article dt { font-weight: 600; color: var(--text); margin-top: 10px; font-size: 0.95rem; }
    .tool-article dd { margin: 3px 0 0 0; color: var(--text-muted); font-size: 0.95rem; line-height: 1.65; padding-left: 14px; border-left: 2px solid var(--border); }

    .article-tags { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border); }
    .article-tags-label { font-size: 0.78rem; color: var(--text-muted); }
    .tag-pill { display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px; border-radius: 999px; font-size: 0.76rem; font-weight: 500; background: var(--bg); border: 1px solid var(--border); color: var(--text-muted); transition: border-color 0.14s, color 0.14s, background 0.14s; }
    html[data-theme="dark"] .tag-pill { background: rgba(15,23,42,0.8); }
    .tag-pill:hover { border-color: rgba(79,70,229,0.7); color: var(--primary); background: var(--primary-soft); }

    .article-cta { margin: 18px 0 0; padding: 18px 20px; background: radial-gradient(circle at top left, var(--primary-soft), var(--bg-alt)); border: 1px solid rgba(199,210,254,0.8); border-radius: var(--radius-lg); display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
    html[data-theme="dark"] .article-cta { background: radial-gradient(circle at top left, rgba(79,70,229,0.16), rgba(15,23,42,0.96)); border-color: rgba(79,70,229,0.35); }
    .article-cta-icon { font-size: 1.5rem; color: var(--primary); flex-shrink: 0; }
    .article-cta-body { flex: 1; min-width: 0; }
    .article-cta-body strong { display: block; font-size: 0.95rem; color: var(--text); margin-bottom: 2px; }
    .article-cta-body p { margin: 0; font-size: 0.85rem; color: var(--text-muted); }
    .cta-btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 18px; border-radius: 999px; background: linear-gradient(135deg, var(--primary), #6366f1); color: #fff; font-size: 0.88rem; font-weight: 500; border: none; cursor: pointer; white-space: nowrap; box-shadow: 0 8px 18px rgba(79,70,229,0.28); transition: transform 0.1s, box-shadow 0.1s; text-decoration: none; }
    .cta-btn:hover { transform: translateY(-1px); box-shadow: 0 12px 26px rgba(79,70,229,0.36); }

    .faq-list { margin: 10px 0 0; display: flex; flex-direction: column; gap: 10px; }
    .faq-item { border-radius: 14px; border: 1px solid var(--border); background: #ffffff; overflow: hidden; transition: border-color 0.15s, box-shadow 0.2s, background-color 0.15s; }
    html[data-theme="dark"] .faq-item { background: rgba(15,23,42,0.98); }
    .faq-item.is-open { border-color: rgba(79,70,229,0.7); box-shadow: 0 8px 20px rgba(79,70,229,0.08); background: #f9fafb; }
    html[data-theme="dark"] .faq-item.is-open { background: radial-gradient(circle at top left, rgba(79,70,229,0.2), #020617); box-shadow: 0 8px 20px rgba(0,0,0,0.9); }
    .faq-question { width: 100%; padding: 13px 15px; border: none; background: transparent; display: flex; align-items: center; gap: 12px; justify-content: space-between; font-size: 0.93rem; font-weight: 500; color: var(--text); cursor: pointer; text-align: left; font-family: inherit; }
    .faq-question span { flex: 1; min-width: 0; }
    .faq-chevron { font-size: 0.85rem; color: var(--text-muted); transition: transform 0.16s ease-out, color 0.15s; }
    .faq-item.is-open .faq-chevron { transform: rotate(180deg); color: var(--primary); }
    .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.25s ease-out; }
    .faq-answer-inner { padding: 8px 15px 13px; }
    .faq-answer-inner p { margin: 0 0 7px; font-size: 0.9rem; line-height: 1.6; color: var(--text-muted); }
    .faq-answer-inner p:last-child { margin-bottom: 0; }

    .article-related-inline {
      display: flex; align-items: center; gap: 14px;
      padding: 13px 16px; margin: 16px 0;
      border-radius: var(--radius-md); border: 1px solid var(--border);
      background: #ffffff; text-decoration: none;
      transition: border-color 0.14s, box-shadow 0.14s;
    }
    html[data-theme="dark"] .article-related-inline { background: rgba(15,23,42,0.7); }
    .article-related-inline:hover { border-color: rgba(79,70,229,0.6); box-shadow: 0 4px 12px rgba(79,70,229,0.1); }
    .article-related-inline-icon {
      width: 38px; height: 38px; border-radius: var(--radius-md); flex-shrink: 0;
      background: var(--primary-soft); color: var(--primary);
      display: flex; align-items: center; justify-content: center; font-size: 1rem;
    }
    .article-related-inline-body { flex: 1; min-width: 0; }
    .article-related-inline-label {
      font-size: 0.68rem; font-weight: 700; letter-spacing: 0.07em;
      text-transform: uppercase; color: var(--primary); margin-bottom: 2px;
    }
    .article-related-inline-title { font-size: 0.9rem; font-weight: 600; color: var(--text); line-height: 1.35; }
    .article-related-inline-arrow { color: var(--text-muted); font-size: 0.85rem; flex-shrink: 0; }

    .site-footer { border-top: 1px solid rgba(209,213,219,0.7); padding: 20px 0 26px; background: rgba(248,250,252,0.96); }
    html[data-theme="dark"] .site-footer { background: rgba(15,23,42,0.98); border-top: 1px solid rgba(30,64,175,0.8); }
    .footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; font-size: 0.86rem; color: var(--text-muted); }
    .footer-brand { display: flex; flex-direction: column; gap: 2px; }
    .footer-nav { display: flex; gap: 12px; flex-wrap: wrap; }
    .footer-nav a:hover { color: var(--primary); }
    .footer-meta { margin: 0; width: 100%; text-align: right; font-size: 0.78rem; }
    .footer-language { position: relative; display: flex; align-items: center; justify-content: flex-end; gap: 8px; min-width: 0; }
    .lang-toggle { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 999px; border: 1px solid rgba(148,163,184,0.9); background: rgba(255,255,255,0.96); font-size: 0.82rem; color: var(--text-muted); cursor: pointer; outline: none; white-space: nowrap; }
    .lang-toggle .lang-chevron { font-size: 0.75rem; transition: transform 0.14s; }
    .lang-toggle.is-open .lang-chevron { transform: rotate(180deg); }
    .lang-toggle:hover { border-color: rgba(79,70,229,0.95); color: var(--primary); }
    html[data-theme="dark"] .lang-toggle { background: #020617; border-color: #1f2937; }
    .lang-dropdown { position: absolute; right: 0; bottom: calc(100% + 6px); min-width: 200px; max-height: 240px; overflow-y: auto; padding: 6px 0; border-radius: 14px; border: 1px solid var(--border); background: #fff; box-shadow: 0 16px 30px rgba(148,163,184,0.3); display: none; z-index: 30; }
    .lang-dropdown.is-open { display: block; }
    html[data-theme="dark"] .lang-dropdown { background: #0d1526; border-color: rgba(37,99,235,0.35); box-shadow: 0 16px 30px rgba(0,0,0,0.6); }
    .lang-option { display: flex; align-items: center; padding: 6px 12px; font-size: 0.82rem; color: var(--text-muted); text-decoration: none; white-space: nowrap; }
    .lang-option:hover { background: #f3f4ff; color: var(--primary); }
    .lang-option.is-active { font-weight: 600; color: var(--primary); background: #eef2ff; }
    html[data-theme="dark"] .lang-option:hover { background: rgba(30,64,175,0.35); color: #e5e7eb; }
    html[data-theme="dark"] .lang-option.is-active { background: rgba(37,99,235,0.4); color: #e5e7eb; }

    .key-takeaways {
      background: var(--primary-soft);
      border-radius: var(--radius-md);
      border-left: 4px solid var(--primary);
      padding: 16px 18px;
      margin: 0 0 20px;
    }
    html[data-theme="dark"] .key-takeaways { background: rgba(79,70,229,0.1); }
    .key-takeaways-label {
      font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em;
      text-transform: uppercase; color: var(--primary); margin-bottom: 10px;
      display: flex; align-items: center; gap: 6px;
    }
    .key-takeaways ol {
      margin: 0; padding: 0; list-style: none; counter-reset: kt;
    }
    .key-takeaways ol li {
      counter-increment: kt; padding-left: 28px; position: relative;
      font-size: 0.92rem; color: var(--text); line-height: 1.55; margin-bottom: 7px;
    }
    .key-takeaways ol li:last-child { margin-bottom: 0; }
    .key-takeaways ol li::before {
      content: counter(kt);
      position: absolute; left: 0; top: 0.05em;
      width: 18px; height: 18px; border-radius: 999px;
      background: var(--primary); color: #fff;
      font-size: 0.68rem; font-weight: 700;
      display: flex; align-items: center; justify-content: center;
    }

    .alert-banner {
      display: flex; gap: 14px; align-items: flex-start;
      padding: 14px 16px; margin: 16px 0;
      border-radius: var(--radius-md);
      border: 1.5px solid;
    }
    .alert-banner-icon {
      font-size: 1.1rem; flex-shrink: 0; margin-top: 1px;
    }
    .alert-banner-body { flex: 1; min-width: 0; }
    .alert-banner-title { font-size: 0.9rem; font-weight: 700; margin-bottom: 3px; }
    .alert-banner-text  { font-size: 0.88rem; line-height: 1.6; margin: 0; }
    .alert-banner.red   { background: #fff1f2; border-color: #f43f5e; color: #881337; }
    .alert-banner.red .alert-banner-icon { color: #f43f5e; }
    .alert-banner.amber { background: #fffbeb; border-color: #f59e0b; color: #78350f; }
    .alert-banner.amber .alert-banner-icon { color: #f59e0b; }
    html[data-theme="dark"] .alert-banner.red   { background: rgba(244,63,94,0.1);  border-color: rgba(244,63,94,0.5);  color: #fda4af; }
    html[data-theme="dark"] .alert-banner.amber { background: rgba(245,158,11,0.1); border-color: rgba(245,158,11,0.5); color: #fcd34d; }

    .author-bio {
      display: flex;
      gap: 16px;
      align-items: flex-start;
      padding: 18px 20px;
      margin: 20px 0 0;
      border-radius: var(--radius-lg);
      background: #f9fafb;
      border: 1px solid var(--border);
    }
    
    html[data-theme="dark"] .author-bio {
      background: rgba(15,23,42,0.6);
    }
    
    .author-bio-avatar {
      width: 52px;
      height: 52px;
      border-radius: 999px;
      flex-shrink: 0;
      background: var(--primary-soft);
      color: var(--primary);
      font-size: 1rem;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 2px solid rgba(79,70,229,0.2);
    }
    
    .author-bio-body {
      flex: 1;
      min-width: 0;
    }
    
    .author-bio-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 2px;
    }
    
    .author-bio-role {
      font-size: 0.78rem;
      color: var(--primary);
      font-weight: 500;
      margin-bottom: 7px;
    }
    
    .author-bio-text {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0 0 10px;
    }
    
    .author-bio-links {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }
    
    .author-bio-link {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      font-size: 0.78rem;
      color: var(--text-muted);
      padding: 3px 9px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background-image: none !important;
      box-shadow: none !important;
      text-decoration: none !important;
      text-decoration-line: none !important;
      transition: color 0.14s, border-color 0.14s;
    }
    
    .author-bio-link:hover,
    .author-bio-link:focus,
    .author-bio-link:visited,
    .author-bio-link:active {
      color: var(--primary);
      border-color: rgba(79,70,229,0.6);
      background-image: none !important;
      box-shadow: none !important;
      text-decoration: none !important;
      text-decoration-line: none !important;
    }
    
    .author-bio a,
    .author-bio a:hover,
    .author-bio a:focus,
    .author-bio a:visited,
    .author-bio a:active,
    .author-bio .author-bio-link,
    .author-bio .author-bio-link:hover,
    .author-bio .author-bio-link:focus,
    .author-bio .author-bio-link:visited,
    .author-bio .author-bio-link:active {
      background-image: none !important;
      box-shadow: none !important;
      text-decoration: none !important;
      text-decoration-line: none !important;
    }
    
    /* Keep only the pill border, not a text underline */
    .author-bio a,
    .author-bio .author-bio-link {
      border-bottom: 1px solid var(--border) !important;
    }
    
    .author-bio a:hover,
    .author-bio a:focus,
    .author-bio .author-bio-link:hover,
    .author-bio .author-bio-link:focus {
      border-bottom-color: rgba(79,70,229,0.6) !important;
    }
    
    .byline-avatar.author-photo-placeholder,
    .author-bio-avatar.author-photo-placeholder {
      overflow: hidden;
      background: linear-gradient(135deg, #eef2ff, #f8fafc);
      color: var(--primary);
      border: 2px solid rgba(79,70,229,0.18);
    }
    
    html[data-theme="dark"] .byline-avatar.author-photo-placeholder,
    html[data-theme="dark"] .author-bio-avatar.author-photo-placeholder {
      background: linear-gradient(135deg, rgba(79,70,229,0.22), rgba(15,23,42,0.92));
      color: #c7d2fe;
      border-color: rgba(129,140,248,0.32);
    }
    
    .byline-avatar.author-photo-placeholder img,
    .author-bio-avatar.author-photo-placeholder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .do-dont { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 14px 0; }
    .do-block, .dont-block { border-radius: var(--radius-md); padding: 14px 16px; }
    .do-block   { background: #f0fdf4; border: 1px solid #bbf7d0; }
    .dont-block { background: #fff1f2; border: 1px solid #fecdd3; }
    html[data-theme="dark"] .do-block   { background: rgba(34,197,94,0.08);  border-color: rgba(34,197,94,0.25); }
    html[data-theme="dark"] .dont-block { background: rgba(244,63,94,0.08);  border-color: rgba(244,63,94,0.25); }
    .do-dont-label {
      font-size: 0.72rem; font-weight: 800; letter-spacing: 0.08em;
      text-transform: uppercase; margin-bottom: 10px;
      display: flex; align-items: center; gap: 6px;
    }
    .do-block   .do-dont-label { color: #166534; }
    .dont-block .do-dont-label { color: #9f1239; }
    html[data-theme="dark"] .do-block   .do-dont-label { color: #86efac; }
    html[data-theme="dark"] .dont-block .do-dont-label { color: #fda4af; }
    .do-dont-list { list-style: none; padding: 0; margin: 0; }
    .do-dont-list li { font-size: 0.88rem; color: var(--text-muted); line-height: 1.55; margin-bottom: 6px; display: flex; align-items: flex-start; gap: 7px; padding-left: 0; }
    .do-dont-list li::before { display: none; }
    .do-dont-list li:last-child { margin-bottom: 0; }
    .do-dont-list li i { flex-shrink: 0; margin-top: 2px; font-size: 0.8rem; }
    .do-block .do-dont-list li i   { color: #22c55e; }
    .dont-block .do-dont-list li i { color: #f43f5e; }

    .verdict-card {
      margin: 16px 0; border-radius: var(--radius-lg);
      border: 2px solid; padding: 18px 20px;
      display: flex; gap: 16px; align-items: flex-start;
    }
    .verdict-card.pass    { border-color: #22c55e; background: #f0fdf4; }
    .verdict-card.fail    { border-color: #f43f5e; background: #fff1f2; }
    html[data-theme="dark"] .verdict-card.pass    { background: rgba(34,197,94,0.08);  border-color: rgba(34,197,94,0.4); }
    html[data-theme="dark"] .verdict-card.fail    { background: rgba(244,63,94,0.08);  border-color: rgba(244,63,94,0.4); }
    .verdict-icon { font-size: 1.6rem; flex-shrink: 0; margin-top: 2px; }
    .verdict-card.pass    .verdict-icon { color: #22c55e; }
    .verdict-card.fail    .verdict-icon { color: #f43f5e; }
    .verdict-label {
      font-size: 0.7rem; font-weight: 800; letter-spacing: 0.1em;
      text-transform: uppercase; margin-bottom: 4px;
    }
    .verdict-card.pass    .verdict-label { color: #166534; }
    .verdict-card.fail    .verdict-label { color: #9f1239; }
    html[data-theme="dark"] .verdict-card.pass    .verdict-label { color: #86efac; }
    html[data-theme="dark"] .verdict-card.fail    .verdict-label { color: #fda4af; }
    .verdict-title { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 5px; }
    .verdict-text  { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; margin: 0; }

    .tab-block { margin: 14px 0; }
    .tab-nav { display: flex; gap: 0; border-bottom: 2px solid var(--border); margin-bottom: 0; }
    .tab-btn {
      padding: 8px 16px; font-size: 0.85rem; font-weight: 500;
      color: var(--text-muted); background: none; border: none;
      cursor: pointer; border-bottom: 2px solid transparent;
      margin-bottom: -2px; transition: color 0.14s, border-color 0.14s;
      font-family: inherit;
    }
    .tab-btn:hover { color: var(--primary); }
    .tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
    .tab-panel { display: none; padding: 16px 0 4px; }
    .tab-panel.active { display: block; }

    .article-quiz { margin: 16px 0; border-radius: var(--radius-md); border: 1px solid var(--border); overflow: hidden; }
    .article-quiz-q {
      padding: 14px 16px 10px; background: var(--primary-soft);
      font-size: 0.92rem; font-weight: 600; color: var(--text);
      display: flex; align-items: flex-start; gap: 8px;
    }
    html[data-theme="dark"] .article-quiz-q { background: rgba(79,70,229,0.12); }
    .article-quiz-q i { color: var(--primary); margin-top: 2px; flex-shrink: 0; }
    .article-quiz-options { padding: 10px 16px 0; display: flex; flex-direction: column; gap: 8px; }
    .article-quiz-option {
      display: flex; align-items: flex-start; gap: 10px;
      padding: 10px 12px; border-radius: var(--radius-md);
      border: 1px solid var(--border); cursor: pointer;
      font-size: 0.88rem; color: var(--text-muted); line-height: 1.5;
      transition: border-color 0.14s, background 0.14s;
      user-select: none;
    }
    .article-quiz-option:hover { border-color: rgba(79,70,229,0.5); background: var(--primary-soft); color: var(--text); }
    .article-quiz-option input { margin-top: 2px; accent-color: var(--primary); flex-shrink: 0; }
    .article-quiz-option.correct { border-color: #22c55e; background: #f0fdf4; color: var(--text); }
    .article-quiz-option.incorrect { border-color: #f43f5e; background: #fff1f2; color: var(--text); }
    .article-quiz-option.revealed { pointer-events: none; }
    html[data-theme="dark"] .article-quiz-option.correct  { background: rgba(34,197,94,0.1);  border-color: rgba(34,197,94,0.5); }
    html[data-theme="dark"] .article-quiz-option.incorrect { background: rgba(244,63,94,0.1); border-color: rgba(244,63,94,0.5); }
    .article-quiz-option-icon { font-size: 0.8rem; margin-top: 2px; flex-shrink: 0; opacity: 0; transition: opacity 0.2s; }
    .article-quiz-option.correct .article-quiz-option-icon   { opacity: 1; color: #22c55e; }
    .article-quiz-option.incorrect .article-quiz-option-icon { opacity: 1; color: #f43f5e; }
    .article-quiz-footer { padding: 12px 16px 14px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
    .article-quiz-check {
      padding: 7px 18px; border-radius: 999px; border: none; cursor: pointer;
      background: linear-gradient(135deg, var(--primary), #6366f1);
      color: #fff; font-size: 0.85rem; font-weight: 600; font-family: inherit;
      box-shadow: 0 6px 14px rgba(79,70,229,0.28); transition: transform 0.1s, box-shadow 0.1s;
    }
    .article-quiz-check:hover { transform: translateY(-1px); box-shadow: 0 8px 18px rgba(79,70,229,0.36); }
    .article-quiz-check:disabled { opacity: 0.5; pointer-events: none; }
    .article-quiz-result {
      display: none; padding: 8px 14px; border-radius: var(--radius-md);
      font-size: 0.85rem; font-weight: 500; flex: 1;
    }
    .article-quiz-result.show { display: block; }
    .article-quiz-result.pass { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
    .article-quiz-result.fail { background: #fff1f2; color: #9f1239; border: 1px solid #fecdd3; }
    html[data-theme="dark"] .article-quiz-result.pass { background: rgba(34,197,94,0.1); color: #86efac; border-color: rgba(34,197,94,0.3); }
    html[data-theme="dark"] .article-quiz-result.fail { background: rgba(244,63,94,0.1); color: #fda4af; border-color: rgba(244,63,94,0.3); }
    .article-quiz-explanation {
      display: none; padding: 10px 16px 14px;
      font-size: 0.87rem; color: var(--text-muted); line-height: 1.65;
      border-top: 1px solid var(--border);
    }
    .article-quiz-explanation.show { display: block; }
    .article-quiz-explanation strong { color: var(--text); }

    .quiz-multi { margin: 16px 0; border-radius: var(--radius-lg); border: 1px solid var(--border); overflow: hidden; }
    .quiz-multi-header {
      padding: 14px 18px; background: linear-gradient(135deg, var(--primary-soft), #ffffff);
      border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px;
    }
    html[data-theme="dark"] .quiz-multi-header { background: linear-gradient(135deg, rgba(79,70,229,0.15), rgba(15,23,42,0.98)); }
    .quiz-multi-title { font-size: 0.95rem; font-weight: 700; color: var(--text); flex: 1; }
    .quiz-multi-count { font-size: 0.78rem; color: var(--text-muted); }
    .quiz-multi-step { display: none; padding: 18px 18px 14px; }
    .quiz-multi-step.active { display: block; }
    .quiz-step-q { font-size: 0.92rem; font-weight: 600; color: var(--text); margin-bottom: 14px; }
    .quiz-step-num { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--primary); margin-bottom: 6px; }
    .quiz-multi-options { display: flex; flex-direction: column; gap: 7px; }
    .quiz-multi-option {
      display: flex; align-items: center; gap: 10px; padding: 10px 12px;
      border-radius: var(--radius-md); border: 1px solid var(--border);
      cursor: pointer; font-size: 0.88rem; color: var(--text-muted); line-height: 1.5;
      transition: border-color 0.14s, background 0.14s; user-select: none;
    }
    .quiz-multi-option:hover { border-color: rgba(79,70,229,0.5); background: var(--primary-soft); color: var(--text); }
    .quiz-multi-option.selected { border-color: var(--primary); background: var(--primary-soft); color: var(--text); font-weight: 500; }
    .quiz-multi-option.correct   { border-color: #22c55e; background: #f0fdf4; color: var(--text); pointer-events: none; }
    .quiz-multi-option.incorrect { border-color: #f43f5e; background: #fff1f2; color: var(--text); pointer-events: none; }
    html[data-theme="dark"] .quiz-multi-option.correct   { background: rgba(34,197,94,0.1);  border-color: rgba(34,197,94,0.5); }
    html[data-theme="dark"] .quiz-multi-option.incorrect { background: rgba(244,63,94,0.1);  border-color: rgba(244,63,94,0.5); }
    .quiz-multi-nav { padding: 12px 18px 16px; display: flex; align-items: center; gap: 10px; border-top: 1px solid var(--border); }
    .quiz-next-btn, .quiz-submit-btn {
      padding: 7px 20px; border-radius: 999px; border: none; cursor: pointer;
      background: linear-gradient(135deg, var(--primary), #6366f1); color: #fff;
      font-size: 0.85rem; font-weight: 600; font-family: inherit;
      box-shadow: 0 6px 14px rgba(79,70,229,0.28); transition: transform 0.1s;
      display: none;
    }
    .quiz-next-btn:hover, .quiz-submit-btn:hover { transform: translateY(-1px); }
    .quiz-feedback { font-size: 0.83rem; flex: 1; color: var(--text-muted); }
    .quiz-multi-score {
      display: none; padding: 24px 18px; text-align: center;
    }
    .quiz-multi-score.show { display: block; }
    .quiz-score-num { font-size: 3rem; font-weight: 800; letter-spacing: -0.05em; color: var(--primary); line-height: 1; }
    .quiz-score-label { font-size: 0.9rem; color: var(--text-muted); margin: 6px 0 14px; }
    .quiz-score-msg { font-size: 0.92rem; color: var(--text); font-weight: 500; margin-bottom: 14px; }
    .quiz-retry-btn {
      padding: 7px 20px; border-radius: 999px; border: 1px solid var(--border);
      background: none; cursor: pointer; font-size: 0.85rem; font-weight: 500;
      color: var(--text-muted); font-family: inherit; transition: color 0.14s, border-color 0.14s;
    }
    .quiz-retry-btn:hover { color: var(--primary); border-color: rgba(79,70,229,0.6); }
    .quiz-progress-bar { height: 3px; background: var(--border); }
    .quiz-progress-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent)); transition: width 0.3s ease; }

    .badge-signal {
      display: inline-flex; align-items: center; gap: 7px;
      padding: 4px 10px; border-radius: 999px;
      font-size: 0.78rem; border: 1px solid var(--border);
      background: #f9fafb; white-space: nowrap;
    }
    html[data-theme="dark"] .badge-signal { background: rgba(15,23,42,0.7); }
    .badge-signal-bars { display: flex; align-items: flex-end; gap: 2px; height: 12px; }
    .badge-signal-bars span {
      display: block; width: 3px; border-radius: 1px; background: var(--border);
    }
    .badge-signal-bars span:nth-child(1) { height: 4px;  }
    .badge-signal-bars span:nth-child(2) { height: 7px;  }
    .badge-signal-bars span:nth-child(3) { height: 10px; }
    .badge-signal-bars span:nth-child(4) { height: 12px; }
    .badge-signal.medium   .badge-signal-bars span:nth-child(-n+3) { background: #f59e0b; }
    .badge-signal-label { color: var(--text-muted); font-size: 0.78rem; }

    .detail-rows { margin: 14px 0; display: flex; flex-direction: column; gap: 6px; }
    .detail-row { border-radius: var(--radius-md); border: 1px solid var(--border); overflow: hidden; }
    .detail-row-toggle {
      width: 100%; display: flex; align-items: center; gap: 12px;
      padding: 11px 14px; background: none; border: none; cursor: pointer;
      font-family: inherit; font-size: 0.9rem; font-weight: 500; color: var(--text);
      text-align: left; transition: background 0.14s;
    }
    .detail-row-toggle:hover { background: var(--primary-soft); }
    html[data-theme="dark"] .detail-row-toggle:hover { background: rgba(79,70,229,0.1); }
    .detail-row-icon { width: 26px; height: 26px; border-radius: 8px; flex-shrink: 0; background: var(--primary-soft); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 0.8rem; }
    .detail-row-label { flex: 1; }
    .detail-row-chevron { font-size: 0.78rem; color: var(--text-muted); transition: transform 0.18s; }
    .detail-row.open .detail-row-chevron { transform: rotate(180deg); }
    .detail-row-content { max-height: 0; overflow: hidden; transition: max-height 0.25s ease-out; }
    .detail-row.open .detail-row-content { max-height: 400px; }
    .detail-row-inner { padding: 0 14px 14px 52px; font-size: 0.87rem; color: var(--text-muted); line-height: 1.65; }

    .share-bar-copy-feedback { font-size: 0.78rem; color: var(--accent); display: none; margin-left: 4px; }
    .share-bar-copy-feedback.show { display: inline; }

    @media (max-width: 900px) {
      .article-hero-inner { grid-template-columns: minmax(0, 1fr); }
      .page-main-grid { grid-template-columns: minmax(0, 1fr); }
      .page-main-grid > aside { position: static; height: auto; }
      .sticky-rail { display: none; }
      .related-tools-mobile { display: block; margin-top: 16px; }
      .stats-row { grid-template-columns: 1fr 1fr; }
      .comparison { grid-template-columns: 1fr; }
      .article-col { min-width: 0; }
    }
    @media (max-width: 800px) {
      .header-inner { flex-wrap: wrap; justify-content: space-between; }
      .main-nav { width: 100%; justify-content: flex-start; flex-wrap: wrap; border-top: 1px solid rgba(209,213,219,0.7); padding-top: 8px; margin-top: 4px; }
      html[data-theme="dark"] .main-nav { border-top: 1px solid rgba(31,41,55,0.9); }
      .theme-switch { position: absolute; right: 20px; top: 22px; }
    }
    @media (max-width: 520px) {
      .footer-meta { text-align: left; }
      .footer-language { width: 100%; justify-content: flex-start; }
      .lang-dropdown { right: auto; left: 0; max-width: 100%; }
    }

    [data-audience] { transition: opacity 0.3s ease, filter 0.3s ease; }
    
  
.tool-article a.article-link,
.tool-article a:not(.cite-ref):not(.source-url):not(.source-context-link):not(.cta-btn):not(.article-related-inline) {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  font-weight: 650;
}
.cite-ref {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  color: var(--primary) !important;
  font-weight: 800;
  text-decoration: none !important;
  padding: 0 2px;
  scroll-margin-top: 96px;
  cursor: pointer;
}
.cite-tooltip { display: none !important; }
.fy-citation-tooltip {
  position: fixed;
  z-index: 99999;
  width: min(390px, calc(100vw - 32px));
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(148,163,184,0.35);
  background: rgba(255,255,255,0.98);
  box-shadow: 0 24px 60px rgba(15,23,42,0.18), 0 2px 6px rgba(15,23,42,0.08);
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.55;
  pointer-events: none;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.12s ease, transform 0.12s ease;
}
.fy-citation-tooltip.is-visible { opacity: 1; transform: translateY(0); }
.fy-citation-tooltip strong { display:block; color: var(--text); font-size:0.92rem; margin-bottom:4px; }
html[data-theme="dark"] .fy-citation-tooltip { background: rgba(15,23,42,0.98); border-color: rgba(55,65,81,0.95); box-shadow: 0 24px 60px rgba(0,0,0,0.72); }
.tool-article pre[data-lang="File naming example"] {
  overflow: visible;
  padding: 30px 18px 18px;
  white-space: normal;
  word-break: break-word;
}
.tool-article pre[data-lang="File naming example"]::before {
  top: 10px;
  right: 16px;
  letter-spacing: 0.12em;
}
.tool-article pre[data-lang="File naming example"] code {
  display: block;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
  font-size: clamp(0.62rem, 1.25vw, 0.82rem);
  line-height: 1.55;
}
.sources-intro { margin-bottom: 12px !important; }
.sources-compact {
  list-style: none !important;
  padding: 0 !important;
  margin: 12px 0 0 !important;
  display: block;
  counter-reset: none;
  color: var(--text-muted);
}
.sources-compact li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 10px;
  padding: 8px 0 9px !important;
  border-bottom: 1px solid var(--border);
  margin: 0 !important;
  line-height: 1.5;
  scroll-margin-top: 96px;
}
.sources-compact li::before { display:none !important; }
.sources-compact li:last-child { border-bottom: 0; }
.source-num { color: var(--primary); font-weight: 800; font-size: 0.86rem; }
.source-main { min-width: 0; font-size: 0.86rem; }
.source-title { color: var(--text); font-weight: 750; }
.source-note { margin-left: 4px; }
.source-url, .source-context-link { color: var(--primary) !important; text-decoration: underline !important; text-underline-offset: 3px; font-weight: 600; margin-left: 6px; white-space: nowrap; }
.source-context-link { font-size: 0.78rem; }
@media (max-width: 640px) {
  .sources-compact li { grid-template-columns: 38px minmax(0, 1fr); }
  .source-main { font-size: 0.82rem; }
}

.pact-panel {
  margin: 18px 0 22px;
}
.pact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.pact-card {
  position: relative;
  min-height: 210px;
  padding: 26px 20px 22px;
  border-radius: 18px;
  border: 1px solid rgba(199,210,254,0.9);
  background:
    radial-gradient(circle at top left, rgba(238,242,255,0.95), rgba(255,255,255,0.98) 42%, rgba(248,250,252,0.96));
  box-shadow: 0 16px 34px rgba(15,23,42,0.055);
  overflow: hidden;
}
.pact-card::after {
  content: attr(data-letter);
  position: absolute;
  right: 18px;
  top: 14px;
  font-size: 4.25rem;
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.08em;
  color: rgba(79,70,229,0.055);
  pointer-events: none;
}
.pact-card-icon {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 18px;
  background: rgba(238,242,255,0.95);
  color: var(--primary);
  font-size: 1.24rem;
  box-shadow: inset 0 0 0 1px rgba(199,210,254,0.8);
}
.pact-card h3 {
  margin: 0 0 10px !important;
  padding: 0 !important;
  font-size: 1.06rem !important;
  line-height: 1.18 !important;
  letter-spacing: -0.025em !important;
  color: var(--text) !important;
}
.pact-card h3::after { display: none !important; }
.pact-card p {
  margin: 0 !important;
  color: var(--text-muted) !important;
  font-size: 0.92rem !important;
  line-height: 1.58 !important;
}
html[data-theme="dark"] .pact-card {
  border-color: rgba(79,70,229,0.38);
  background:
    radial-gradient(circle at top left, rgba(79,70,229,0.20), rgba(15,23,42,0.98) 46%, rgba(2,6,23,0.98));
  box-shadow: 0 18px 38px rgba(0,0,0,0.42);
}
html[data-theme="dark"] .pact-card::after { color: rgba(199,210,254,0.055); }
html[data-theme="dark"] .pact-card-icon {
  background: rgba(79,70,229,0.18);
  box-shadow: inset 0 0 0 1px rgba(129,140,248,0.32);
  color: #c7d2fe;
}
@media (max-width: 980px) {
  .pact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pact-card { min-height: 180px; }
}
@media (max-width: 560px) {
  .pact-grid { grid-template-columns: 1fr; gap: 10px; }
  .pact-card {
    min-height: 0;
    display: grid;
    grid-template-columns: 50px minmax(0, 1fr);
    column-gap: 14px;
    align-items: start;
    padding: 18px 18px;
  }
  .pact-card-icon { margin: 0; width: 48px; height: 48px; border-radius: 16px; }
  .pact-card h3 { margin-top: 2px !important; }
  .pact-card p { grid-column: 2; }
}

.sources-intro { display: none !important; }
.sources-compact {
  list-style: none !important;
  padding: 0 !important;
  margin: 10px 0 0 !important;
  display: block;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}
.sources-compact li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 10px;
  padding: 8px 0 !important;
  border-bottom: 1px solid var(--border);
  margin: 0 !important;
  line-height: 1.48;
  scroll-margin-top: 96px;
}
.sources-compact li::before { display: none !important; }
.source-num {
  color: var(--primary);
  font-weight: 850;
  font-size: 0.82rem;
  line-height: 1.5;
}
.source-main {
  min-width: 0;
  font-size: 0.84rem;
  color: var(--text-muted);
}
.source-title {
  color: var(--text);
  font-weight: 760;
}
.source-note {
  margin-left: 4px;
}
.source-url {
  color: var(--primary) !important;
  text-decoration: underline !important;
  text-underline-offset: 3px;
  font-weight: 650;
  margin-left: 6px;
  white-space: nowrap;
}
.source-context-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
  padding: 2px 8px 3px;
  border-radius: 999px;
  border: 1px solid rgba(79,70,229,0.28);
  background: rgba(79,70,229,0.07);
  color: var(--primary) !important;
  text-decoration: none !important;
  font-size: 0.72rem;
  font-weight: 750;
  line-height: 1.35;
  white-space: nowrap;
}
.source-context-link:hover {
  border-color: rgba(79,70,229,0.65);
  background: rgba(79,70,229,0.12);
}
html[data-theme="dark"] .source-context-link {
  background: rgba(79,70,229,0.18);
  border-color: rgba(129,140,248,0.35);
}
@media (max-width: 640px) {
  .sources-compact li { grid-template-columns: 34px minmax(0, 1fr); }
  .source-main { font-size: 0.8rem; }
  .source-url, .source-context-link { margin-left: 0; margin-right: 6px; margin-top: 2px; }
}

.pact-card,
html[data-theme="dark"] .pact-card {
  box-shadow: 0 16px 34px rgba(15,23,42,0.055) !important;
}
html[data-theme="dark"] .pact-card {
  box-shadow: 0 18px 38px rgba(0,0,0,0.42) !important;
}

  .article-col .tool-article {
    border-top: none;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
    margin-top: 0;
  }
  .article-col .article-cover {
    border-bottom: none;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    margin-bottom: 0;
  }

  .comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin: 16px 0;
    align-items: start;
  }
  .comparison-card { height: 100%; }
  @media (max-width: 640px) {
    .comparison { grid-template-columns: 1fr; }
  }

  .do-dont {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin: 16px 0;
    align-items: start;
  }
  @media (max-width: 640px) {
    .do-dont { grid-template-columns: 1fr; }
  }

  .privacy-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin: 14px 0;
  }
  @media (max-width: 680px) {
    .privacy-grid { grid-template-columns: 1fr; }
  }

  .stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin: 16px 0;
  }
  @media (max-width: 600px) {
    .stats-row { grid-template-columns: 1fr; }
  }
  .stat-card { min-height: 0; }

  .flow-diagram {
    margin: 18px 0;
    display: flex;
    flex-direction: column;
    gap: 0;
  }
  .flow-step {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 13px 16px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    position: relative;
  }
  .flow-step:first-child { border-radius: var(--radius-md) var(--radius-md) 0 0; }
  .flow-step:last-child  { border-radius: 0 0 var(--radius-md) var(--radius-md); }
  .flow-step + .flow-step { border-top: none; }
  .flow-step-num {
    width: 28px; height: 28px; border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #6366f1);
    color: #fff; font-size: 0.78rem; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; margin-top: 1px;
    box-shadow: 0 4px 10px rgba(79,70,229,0.3);
  }
  .flow-step-body { flex: 1; }
  .flow-step-body strong { display: block; font-size: 0.92rem; color: var(--text); margin-bottom: 2px; }
  .flow-step-body span { font-size: 0.87rem; color: var(--text-muted); line-height: 1.55; }
  .flow-step-arrow {
    position: absolute; left: 27px; bottom: -10px;
    width: 14px; height: 10px;
    display: flex; align-items: center; justify-content: center;
    z-index: 2;
    color: var(--primary); font-size: 0.7rem;
  }
  .flow-step:last-child .flow-step-arrow { display: none; }
  html[data-theme="dark"] .flow-step { background: rgba(15,23,42,0.7); }

  .network-anatomy {
    margin: 18px 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
  }
  .network-anatomy-header {
    padding: 10px 14px;
    background: #0f172a;
    color: #94a3b8;
    font-size: 0.78rem;
    font-family: ui-monospace, monospace;
    display: flex; gap: 8px; align-items: center;
  }
  .na-dot { width: 10px; height: 10px; border-radius: 50%; }
  .na-dot.red { background: #ef4444; }
  .na-dot.yellow { background: #f59e0b; }
  .na-dot.green { background: #22c55e; }
  .network-anatomy-rows { display: flex; flex-direction: column; }
  .na-row {
    display: grid;
    grid-template-columns: 60px 1fr 80px 80px;
    gap: 0;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    font-family: ui-monospace, monospace;
  }
  .na-row.na-head {
    background: #f8fafc;
    font-size: 0.60rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
  html[data-theme="dark"] .na-row.na-head { background: rgba(15,23,42,0.6); }
  .na-row.na-upload { background: #fff1f2; }
  html[data-theme="dark"] .na-row.na-upload { background: rgba(244,63,94,0.08); }
  .na-row.na-ok { background: #f0fdf4; }
  html[data-theme="dark"] .na-row.na-ok { background: rgba(34,197,94,0.05); }
  .na-cell {
    padding: 8px 10px;
    border-right: 1px solid var(--border);
    color: var(--text-muted);
    display: flex; align-items: center;
    line-height: 1.3;
    word-break: break-all;
  }
  .na-cell:last-child { border-right: none; }
  .na-cell.method-post { color: #ef4444; font-weight: 700; }
  .na-cell.method-get  { color: #22c55e; font-weight: 600; }
  .na-cell.method-put  { color: #f59e0b; font-weight: 700; }
  .na-cell.size-big    { color: #ef4444; font-weight: 600; }
  .na-cell.size-ok     { color: var(--text-muted); }
  .na-label {
    font-size: 0.68rem; font-weight: 600; padding: 1px 5px;
    border-radius: 4px; white-space: nowrap;
  }
  .na-label.bad { background: #fff1f2; color: #be123c; border: 1px solid #fecdd3; }
  .na-label.good { background: #f0fdf4; color: #15803d; border: 1px solid #bbf7d0; }
  html[data-theme="dark"] .na-label.bad { background: rgba(244,63,94,0.12); color: #fda4af; border-color: rgba(244,63,94,0.3); }
  html[data-theme="dark"] .na-label.good { background: rgba(34,197,94,0.1); color: #86efac; border-color: rgba(34,197,94,0.3); }
  .na-caption { padding: 8px 14px; font-size: 0.8rem; color: var(--text-muted); border-top: 1px solid var(--border); font-style: italic; }

  .direction-diagram {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0;
    align-items: center;
    margin: 18px 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
  }
  .dir-side {
    padding: 20px 16px;
    text-align: center;
  }
  .dir-side.your-browser { background: var(--primary-soft); }
  .dir-side.server { background: #f9fafb; }
  html[data-theme="dark"] .dir-side.server { background: rgba(15,23,42,0.5); }
  .dir-icon { font-size: 1.6rem; margin-bottom: 6px; color: var(--primary); }
  .dir-side.server .dir-icon { color: var(--text-muted); }
  .dir-label { font-size: 0.82rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
  .dir-sub { font-size: 0.75rem; color: var(--text-muted); }
  .dir-arrows {
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    align-items: center;
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
    background: var(--bg);
  }
  .dir-arrow-row {
    display: flex; align-items: center; gap: 6px; font-size: 0.72rem; font-weight: 600;
    white-space: nowrap;
  }
  .dir-arrow-row.upload { color: #ef4444; }
  .dir-arrow-row.download { color: #22c55e; }
  .dir-arrow { font-size: 0.85rem; }

  .verdict-card {
    margin: 16px 0;
    border-radius: var(--radius-md);
    border: 2px solid;
    padding: 16px 18px;
    display: flex;
    gap: 14px;
    align-items: flex-start;
  }
  .verdict-card.pass { border-color: #22c55e; background: #f0fdf4; }
  html[data-theme="dark"] .verdict-card.pass { background: rgba(34,197,94,0.07); border-color: rgba(34,197,94,0.4); }
  .verdict-icon { font-size: 1.4rem; color: #22c55e; flex-shrink: 0; margin-top: 2px; }
  .verdict-label { font-size: 0.68rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: #166534; margin-bottom: 3px; }
  html[data-theme="dark"] .verdict-label { color: #86efac; }
  .verdict-title { font-size: 0.95rem; font-weight: 700; color: var(--text); margin-bottom: 4px; }
  .verdict-text { font-size: 0.87rem; color: var(--text-muted); line-height: 1.6; margin: 0; }

  .article-col .article-cover { border: 0 !important; border-radius: var(--radius-lg) !important; margin-bottom: 18px !important; box-shadow: var(--shadow-soft); }
  .article-col .tool-article { border-top: 1px solid var(--border) !important; border-top-left-radius: var(--radius-lg) !important; border-top-right-radius: var(--radius-lg) !important; }
  .flow-diagram { gap: 10px !important; margin: 18px 0 20px !important; }
  .flow-step { border-radius: 16px !important; border: 1px solid var(--border) !important; padding: 15px 16px !important; align-items: flex-start !important; box-shadow: 0 8px 20px rgba(15,23,42,0.035); }
  .flow-step + .flow-step { border-top: 1px solid var(--border) !important; }
  .flow-step-num { margin-top: 2px !important; }
  .flow-step-arrow { display: none !important; }
  .flow-step-body strong { font-size: 0.96rem !important; line-height: 1.35; }
  .flow-step-body span { display: block; margin-top: 3px; }
  .direction-diagram { grid-template-columns: minmax(0, 1fr) minmax(180px, 0.72fr) minmax(0, 1fr) !important; border-radius: 18px !important; background: #ffffff !important; border: 1px solid var(--border) !important; box-shadow: 0 10px 24px rgba(15,23,42,0.045); }
  html[data-theme="dark"] .direction-diagram { background: rgba(15,23,42,0.96) !important; }
  .dir-side { min-height: 160px; display: flex; flex-direction: column; justify-content: center; }
  .dir-side.your-browser { background: linear-gradient(135deg, var(--primary-soft), #ffffff) !important; }
  .dir-side.server { background: #f8fafc !important; }
  html[data-theme="dark"] .dir-side.your-browser { background: linear-gradient(135deg, rgba(79,70,229,0.18), rgba(15,23,42,0.96)) !important; }
  html[data-theme="dark"] .dir-side.server { background: rgba(15,23,42,0.75) !important; }
  .dir-arrows { min-height: 160px; justify-content: center; background: #f8fafc !important; }
  html[data-theme="dark"] .dir-arrows { background: rgba(2,6,23,0.35) !important; }
  .dir-arrow-row { font-size: 0.78rem !important; }
  @media (max-width: 720px) { .direction-diagram { grid-template-columns: 1fr !important; } .dir-side, .dir-arrows { min-height: 0; } .dir-arrows { border-left: 0; border-right: 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); } }
  .comparison { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) !important; align-items: stretch !important; }
  .comparison-card { min-width: 0; }
  .comparison-card code { white-space: normal !important; overflow-wrap: anywhere; word-break: break-word; }
  .comparison-card ul li { align-items: flex-start; }
  .article-guidance-block { margin: 16px 0; padding: 18px 20px; border-radius: 18px; border: 1px solid var(--border); background: linear-gradient(135deg, #ffffff, #f8fafc); box-shadow: 0 10px 24px rgba(15,23,42,0.045); }
  html[data-theme="dark"] .article-guidance-block { background: linear-gradient(135deg, rgba(15,23,42,0.96), rgba(2,6,23,0.75)); }
  .article-guidance-block p { margin-bottom: 12px; }
  .article-guidance-block p:last-child { margin-bottom: 0; }
  .article-guidance-kicker { display: inline-flex; align-items: center; gap: 6px; margin-bottom: 10px; font-size: 0.76rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--primary); }
  .article-guidance-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 14px; margin-top: 14px; }
  .article-guidance-mini { border: 1px solid var(--border); border-radius: 14px; padding: 13px 14px; background: rgba(255,255,255,0.7); }
  html[data-theme="dark"] .article-guidance-mini { background: rgba(15,23,42,0.65); }
  .article-guidance-mini strong { display: block; margin-bottom: 4px; }
  @media (max-width: 680px) { .article-guidance-split { grid-template-columns: 1fr; } }

  .article-col .article-cover { border: 0 !important; margin-bottom: 20px !important; box-shadow: var(--shadow-soft) !important; }
  .article-col .tool-article { border-top: 0 !important; border-top-left-radius: var(--radius-lg) !important; border-top-right-radius: var(--radius-lg) !important; box-shadow: 0 18px 34px rgba(15,23,42,0.055) !important; }
  .article-col .tool-article::before { display: none !important; content: none !important; }
  .comparison { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) !important; gap: 18px !important; align-items: stretch !important; }
  .comparison-card { padding: 18px 20px !important; min-width: 0 !important; }
  .comparison-card h4 { display: flex; align-items: center; gap: 8px; line-height: 1.25; }
  .comparison-card ul li { display: grid !important; grid-template-columns: 18px minmax(0,1fr); gap: 8px !important; padding-left: 0 !important; line-height: 1.55 !important; }
  .comparison-card ul li i { margin-top: 0.28em !important; }
  .comparison-card code { display: inline !important; padding: 0 !important; background: transparent !important; border-radius: 0 !important; white-space: normal !important; overflow-wrap: normal !important; word-break: normal !important; color: inherit !important; font-family: inherit !important; font-size: inherit !important; }

    .article-col .article-cover {
      margin-bottom: 20px !important;
      border-bottom-color: transparent !important;
    }
    .article-col .tool-article {
      border-top: 0 !important;
      box-shadow: 0 16px 30px rgba(15,23,42,0.055) !important;
      overflow: hidden;
    }
    .article-col .tool-article::before, .article-col .tool-article::after {
      display: none !important;
      content: none !important;
    }

    .comparison {
      grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
      align-items: stretch !important;
      gap: 18px !important;
    }
    .comparison-card {
      min-width: 0 !important;
      height: 100% !important;
      padding: 18px 18px 16px !important;
    }
    .comparison-card h4 {
      display: flex !important;
      align-items: center !important;
      gap: 8px !important;
      line-height: 1.25 !important;
      white-space: normal !important;
    }
    .comparison-card ul li {
      display: grid !important;
      grid-template-columns: 18px minmax(0, 1fr) !important;
      gap: 8px !important;
      align-items: start !important;
      overflow-wrap: normal !important;
      word-break: normal !important;
      hyphens: none !important;
    }
    .comparison-card ul li i { margin-top: 0.25em !important; }
    .comparison-card code, .quiz-multi code, .article-quiz code {
      white-space: nowrap !important;
      word-break: keep-all !important;
      overflow-wrap: normal !important;
      display: inline-block !important;
      line-height: 1.25 !important;
      vertical-align: baseline !important;
    }