:root {
            --navy:#1d1d1f; --text:#1d1d1f; --text-secondary:#424245; --text-tertiary:#6e6e73; --text-muted:#86868b;
            --bg:#ffffff; --bg-alt:#f5f5f7; --bg-soft:#fbfbfd; --bg-cream:#faf7f2;
            --border:#d2d2d7; --border-light:#e8e8ed; --border-soft:#f0f0f3;
            --apple-blue:#0071e3; --apple-blue-link:#0066cc; --apple-blue-bright:#2997ff;
            --energy:#ff6b35; --energy-soft:#fff0e8;
            --mint:#10b981; --mint-dark:#059669; --mint-soft:#ecfdf5;
            --coral:#ec4899; --sun:#f59e0b; --sky:#0ea5e9; --lavender:#7c3aed;
            --ink:#0a1628;
            --shadow-sm:0 1px 3px rgba(0,0,0,0.04);
            --shadow:0 3px 12px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
            --shadow-lg:0 12px 40px rgba(0,0,0,0.10);
            --radius:10px; --radius-lg:16px; --radius-xl:22px; --radius-2xl:28px; --radius-pill:980px;
            --transition:0.32s cubic-bezier(0.4,0.0,0.2,1);
            --max-w:1280px;
            --font-display:'Be Vietnam Pro','Inter',-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
            --font-body:'Inter','Be Vietnam Pro',-apple-system,system-ui,sans-serif;
            --font-editorial:'Fraunces','Be Vietnam Pro',Georgia,serif;
            --font-mono:'JetBrains Mono',ui-monospace,Menlo,monospace;
        }
        html[data-theme="dark"] {
            --text:#f5f5f7; --text-secondary:#c7c7cf; --text-tertiary:#9b9ba6; --text-muted:#6e6e7a;
            --bg:#0a1628; --bg-alt:#14253f; --bg-soft:#0d1c33; --bg-cream:#14213a;
            --border:#2d3a52; --border-light:#1f2b41; --border-soft:#182238;
        }

        * { box-sizing:border-box; margin:0; padding:0; }
        html { scroll-behavior:smooth; }
        body { font-family:var(--font-body); color:var(--text); background:var(--bg); line-height:1.55; font-size:16px; -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale; }
        a { color:inherit; text-decoration:none; transition:color var(--transition); }
        a:hover { color:var(--apple-blue-link); }
        img { max-width:100%; display:block; height:auto; }
        button { font:inherit; cursor:pointer; background:none; border:none; color:inherit; }
        ul, ol { list-style:none; }
        ::selection { background:var(--apple-blue); color:#fff; }

        .wrap { width:100%; max-width:var(--max-w); margin:0 auto; padding:0 clamp(16px,3vw,32px); }
        .scroll-progress { position:fixed; top:0; left:0; width:0%; height:3px; background:linear-gradient(90deg,var(--energy),var(--coral) 30%,var(--apple-blue) 65%,var(--mint)); z-index:9999; transition:width 0.06s linear; }
        .skip-link { position:absolute; top:-100px; left:16px; z-index:9999; padding:10px 18px; border-radius:var(--radius-pill); background:var(--text); color:#fff; font-weight:600; font-size:14px; box-shadow:0 8px 24px rgba(0,0,0,0.20); transition:top var(--transition); }
        .skip-link:focus-visible { top:12px; outline:3px solid var(--energy); outline-offset:3px; color:#fff; }

        /* ===== Header (shared chrome) ===== */
        .site-header { position:sticky; top:0; z-index:100; background:rgba(255,255,255,0.78); backdrop-filter:saturate(180%) blur(20px); -webkit-backdrop-filter:saturate(180%) blur(20px); border-bottom:1px solid transparent; transition:all var(--transition); }
        html[data-theme="dark"] .site-header { background:rgba(10,22,40,0.72); }
        .site-header.is-scrolled { border-bottom-color:var(--border-light); background:rgba(255,255,255,0.92); }
        html[data-theme="dark"] .site-header.is-scrolled { background:rgba(10,22,40,0.92); }
        .site-header__inner { display:flex; align-items:center; justify-content:space-between; height:68px; gap:16px; }
        .brand { display:inline-flex; align-items:center; gap:10px; flex-shrink:0; white-space:nowrap; }
        .brand__mark { width:36px; height:36px; border-radius:10px; background:linear-gradient(135deg,#1d1d1f,#0a1628); color:#fff; display:grid; place-items:center; font-family:var(--font-editorial); font-weight:600; font-style:italic; font-size:19px; box-shadow:0 6px 16px rgba(10,22,40,0.18); }
        html[data-theme="dark"] .brand__mark { background:linear-gradient(135deg,#fff,#d2d2d7); color:#060e1c; }
        .brand__name { font-family:var(--font-display); font-weight:700; font-size:17px; color:var(--text); }
        .brand__chip { font-family:var(--font-editorial); font-style:italic; font-weight:500; font-size:12px; padding:3px 10px; border-radius:var(--radius-pill); background:linear-gradient(135deg,var(--energy),var(--coral)); color:#fff; box-shadow:0 4px 12px rgba(255,107,53,0.28); }
        .header-back { display:inline-flex; align-items:center; gap:8px; padding:8px 14px; border-radius:var(--radius-pill); font-size:13.5px; font-weight:500; color:var(--text-secondary); border:1px solid var(--border-light); background:rgba(255,255,255,0.5); transition:all var(--transition); }
        html[data-theme="dark"] .header-back { background:rgba(255,255,255,0.05); }
        .header-back:hover { background:var(--bg-alt); color:var(--text); transform:translateY(-1px); }
        .header-back svg { width:14px; height:14px; }
        .header-theme-btn { width:40px; height:40px; display:inline-flex; align-items:center; justify-content:center; border-radius:10px; color:var(--text-secondary); transition:all var(--transition); position:relative; flex-shrink:0; }
        .header-theme-btn:hover { background:var(--bg-alt); color:var(--text); transform:translateY(-1px); }
        .header-theme-btn svg { width:18px; height:18px; }
        .header-theme-btn .theme-icon { position:absolute; top:50%; left:50%; transform:translate(-50%,-50%) rotate(0deg) scale(1); transition:transform 0.5s cubic-bezier(0.34,1.56,0.64,1), opacity 0.3s ease; }
        .header-theme-btn .theme-icon--moon { opacity:0; transform:translate(-50%,-50%) rotate(-90deg) scale(0.4); }
        html[data-theme="dark"] .header-theme-btn .theme-icon--sun { opacity:0; transform:translate(-50%,-50%) rotate(90deg) scale(0.4); }
        html[data-theme="dark"] .header-theme-btn .theme-icon--moon { opacity:1; transform:translate(-50%,-50%) rotate(0deg) scale(1); }
        .site-header__cta { display:inline-flex; align-items:center; gap:8px; padding:9px 18px; border-radius:var(--radius-pill); background:var(--text); color:#fff; font-weight:600; font-size:14px; transition:all var(--transition); box-shadow:0 4px 14px rgba(0,0,0,0.14); }
        html[data-theme="dark"] .site-header__cta { background:#fff; color:var(--ink); }
        .site-header__cta:hover { background:var(--apple-blue); color:#fff; transform:translateY(-1px); }
        .site-header__cta .dot { width:7px; height:7px; background:var(--energy); border-radius:50%; box-shadow:0 0 0 3px rgba(255,107,53,0.22); animation:pulse-dot 2.2s ease-in-out infinite; }
        @keyframes pulse-dot { 0%,100% { box-shadow:0 0 0 3px rgba(255,107,53,0.22); } 50% { box-shadow:0 0 0 6px rgba(255,107,53,0.06); } }

        /* ===== Zone hero ===== */
        .zone-hero { padding:clamp(40px,6vw,84px) 0 clamp(28px,4vw,48px); position:relative; overflow:hidden; }
        .zone-hero::before { content:""; position:absolute; inset:-30% -10% auto -10%; height:60%; background: radial-gradient(50% 60% at 18% 30%, rgba(255,107,53,0.10), transparent 70%), radial-gradient(45% 55% at 82% 25%, rgba(0,113,227,0.10), transparent 70%); filter:blur(40px); z-index:-1; pointer-events:none; }
        html[data-theme="dark"] .zone-hero::before { background: radial-gradient(50% 60% at 18% 30%, rgba(255,107,53,0.16), transparent 70%), radial-gradient(45% 55% at 82% 25%, rgba(0,113,227,0.20), transparent 70%); }
        .breadcrumb { display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-family:var(--font-mono); font-size:11.5px; letter-spacing:0.10em; color:var(--text-tertiary); text-transform:uppercase; margin-bottom:18px; }
        .breadcrumb a { color:var(--text-tertiary); }
        .breadcrumb a:hover { color:var(--text); }
        .breadcrumb__sep { opacity:0.5; }
        .breadcrumb__current { color:var(--text); }

        .zone-hero__grid { display:grid; grid-template-columns:minmax(0,1.6fr) minmax(0,1fr); gap:clamp(28px,4vw,56px); align-items:center; }
        @media (max-width:880px) { .zone-hero__grid { grid-template-columns:1fr; } }
        .zone-hero__eyebrow { display:inline-flex; align-items:center; gap:8px; font-family:var(--font-mono); font-size:11px; font-weight:500; letter-spacing:0.14em; text-transform:uppercase; color:var(--apple-blue-link); margin-bottom:14px; }
        .zone-hero__eyebrow::before { content:""; width:24px; height:1.5px; background:linear-gradient(90deg,var(--energy),var(--apple-blue)); }
        .zone-hero__title { font-family:var(--font-display); font-weight:700; font-size:clamp(38px,6vw,72px); line-height:1.04; letter-spacing:-0.030em; color:var(--text); text-wrap:balance; }
        .zone-hero__title em { font-family:var(--font-editorial); font-style:italic; font-weight:500; background:linear-gradient(135deg,var(--energy),var(--coral) 50%,var(--apple-blue)); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; }
        .zone-hero__lede { font-size:18px; color:var(--text-secondary); line-height:1.55; margin-top:16px; max-width:560px; }
        .zone-hero__stats { display:flex; gap:24px; flex-wrap:wrap; margin-top:24px; font-family:var(--font-mono); font-size:12px; color:var(--text-tertiary); letter-spacing:0.06em; }
        .zone-hero__stats strong { font-family:var(--font-display); font-weight:600; font-size:17px; color:var(--text); margin-right:6px; letter-spacing:-0.01em; }
        .zone-hero__viz { position:relative; aspect-ratio:1/1; max-width:340px; margin-left:auto; }
        .zone-hero__viz-cover { position:absolute; inset:0; border-radius:var(--radius-2xl); overflow:hidden; box-shadow:var(--shadow-lg); }
        .zone-hero__viz-cover img { width:100%; height:100%; object-fit:cover; opacity:0; transition:opacity 0.3s ease; }
        .zone-hero__viz-cover img.is-loaded { opacity:1; }

        /* ===== Article grid ===== */
        .zone-grid-section { padding:clamp(24px,4vw,40px) 0 clamp(48px,6vw,72px); }
        .zone-grid { display:grid; grid-template-columns:repeat(3, minmax(0, 1fr)); gap:clamp(20px,2vw,32px); }
        @media (max-width:1024px) { .zone-grid { grid-template-columns:repeat(2, 1fr); } }
        @media (max-width:560px) { .zone-grid { grid-template-columns:1fr; } }
        .z-card { display:flex; flex-direction:column; background:var(--bg); border-radius:var(--radius-xl); overflow:hidden; border:1px solid var(--border-soft); transition:all var(--transition); }
        html[data-theme="dark"] .z-card { background:var(--bg-alt); border-color:var(--border-light); }
        .z-card:hover { transform:translateY(-3px); box-shadow:var(--shadow-lg); border-color:var(--border); }
        .z-card__media { position:relative; aspect-ratio:5/3; overflow:hidden; background:var(--bg-alt); }
        .z-card__media img { width:100%; height:100%; object-fit:cover; transition:transform 0.6s ease; opacity:0; }
        .z-card__media img.is-loaded { opacity:1; }
        .z-card:hover .z-card__media img.is-loaded { transform:scale(1.05); }
        .z-card__body { padding:20px; display:flex; flex-direction:column; gap:10px; flex:1; }
        .z-card__title { font-family:var(--font-display); font-weight:600; font-size:17px; line-height:1.32; letter-spacing:-0.012em; color:var(--text); text-wrap:balance; display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden; }
        .z-card:hover .z-card__title { color:var(--apple-blue-link); }
        .z-card__teaser { font-size:14px; color:var(--text-secondary); line-height:1.55; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
        .z-card__meta { margin-top:auto; padding-top:12px; border-top:1px solid var(--border-soft); display:flex; align-items:center; gap:10px; font-family:var(--font-mono); font-size:11px; color:var(--text-tertiary); letter-spacing:0.06em; }
        .z-card__meta-dot { width:3px; height:3px; border-radius:50%; background:currentColor; opacity:0.5; }

        /* ===== Empty state ===== */
        .zone-empty { padding:clamp(60px,10vw,120px) 24px; text-align:center; border:1px dashed var(--border); border-radius:var(--radius-xl); background:var(--bg-soft); }
        .zone-empty__title { font-family:var(--font-editorial); font-style:italic; font-weight:500; font-size:clamp(22px,3vw,32px); color:var(--text-secondary); margin-bottom:12px; }
        .zone-empty p { color:var(--text-tertiary); font-size:15px; max-width:480px; margin:0 auto; }

        /* ===== Pagination ===== */
        .pager { margin-top:clamp(28px,4vw,48px); padding:clamp(20px,3vw,32px); background:var(--bg-cream); border-radius:var(--radius-xl); display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap; }
        html[data-theme="dark"] .pager { background:var(--bg-alt); border:1px solid var(--border-light); }
        .pager__info { font-family:var(--font-mono); font-size:12px; color:var(--text-tertiary); letter-spacing:0.04em; }
        .pager__info strong { font-family:var(--font-display); font-weight:600; color:var(--text); letter-spacing:-0.01em; }
        .pager__nav { display:inline-flex; gap:8px; flex-wrap:wrap; align-items:center; }
        .pager__btn { display:inline-flex; align-items:center; gap:8px; padding:9px 16px; border-radius:var(--radius-pill); font-size:14px; font-weight:500; color:var(--text-secondary); border:1px solid var(--border-light); background:rgba(255,255,255,0.5); transition:all var(--transition); }
        html[data-theme="dark"] .pager__btn { background:rgba(255,255,255,0.05); }
        .pager__btn:not([disabled]):hover { background:var(--text); color:#fff; border-color:var(--text); transform:translateY(-1px); }
        html[data-theme="dark"] .pager__btn:not([disabled]):hover { background:#fff; color:var(--ink); border-color:#fff; }
        .pager__btn[disabled], .pager__btn.is-disabled { opacity:0.4; pointer-events:none; }
        .pager__btn svg { width:14px; height:14px; }
        .pager__pages { display:inline-flex; gap:6px; }
        .pager__num { display:inline-flex; align-items:center; justify-content:center; min-width:36px; height:36px; padding:0 10px; border-radius:10px; font-family:var(--font-mono); font-size:13px; font-weight:500; color:var(--text-secondary); border:1px solid var(--border-light); background:rgba(255,255,255,0.5); transition:all var(--transition); }
        html[data-theme="dark"] .pager__num { background:rgba(255,255,255,0.05); }
        .pager__num:hover { background:var(--bg-alt); color:var(--text); }
        .pager__num.is-current { background:var(--text); color:#fff; border-color:var(--text); cursor:default; }
        html[data-theme="dark"] .pager__num.is-current { background:#fff; color:var(--ink); border-color:#fff; }
        .pager__ellipsis { color:var(--text-tertiary); padding:0 6px; align-self:center; }

        /* ===== Sibling zones ===== */
        .siblings { padding:clamp(36px,5vw,64px) 0; border-top:1px solid var(--border-light); }
        .siblings__head { margin-bottom:24px; }
        .siblings__title { font-family:var(--font-display); font-weight:600; font-size:clamp(20px,2.4vw,26px); letter-spacing:-0.014em; color:var(--text); margin-top:8px; }
        .siblings__cloud { display:flex; flex-wrap:wrap; gap:10px; }
        .sibling-pill { display:inline-flex; align-items:center; gap:8px; padding:9px 16px; border-radius:var(--radius-pill); background:var(--bg); color:var(--text); font-size:14px; font-weight:500; border:1px solid var(--border-light); transition:all var(--transition); }
        html[data-theme="dark"] .sibling-pill { background:var(--bg-alt); }
        .sibling-pill:hover { transform:translateY(-2px); background:var(--text); color:#fff; border-color:var(--text); }
        html[data-theme="dark"] .sibling-pill:hover { background:#fff; color:var(--ink); border-color:#fff; }
        .sibling-pill__dot { width:6px; height:6px; border-radius:50%; background:var(--apple-blue); }
        .sibling-pill:nth-child(3n) .sibling-pill__dot { background:var(--coral); }
        .sibling-pill:nth-child(3n+1) .sibling-pill__dot { background:var(--mint); }
        .sibling-pill:nth-child(5n+2) .sibling-pill__dot { background:var(--sun); }

        /* ===== Footer ===== */
        .site-footer { background:var(--bg-cream); padding:64px 0 32px; margin-top:32px; }
        html[data-theme="dark"] .site-footer { background:var(--bg-soft); border-top:1px solid var(--border-light); }
        .footer-inner { display:grid; grid-template-columns:1.5fr 1fr 1fr; gap:36px; margin-bottom:32px; }
        .footer-brand p { color:var(--text-secondary); font-size:14px; line-height:1.6; margin-top:12px; max-width:360px; }
        .footer-col h4 { font-family:var(--font-display); font-weight:600; font-size:13px; margin-bottom:14px; color:var(--text); }
        .footer-col ul { display:flex; flex-direction:column; gap:10px; }
        .footer-col a { font-size:14px; color:var(--text-secondary); }
        .footer-col a:hover { color:var(--apple-blue-link); }
        .footer-bottom { border-top:1px solid var(--border-soft); padding-top:24px; display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap; font-family:var(--font-mono); font-size:12px; color:var(--text-tertiary); letter-spacing:0.04em; }
        @media (max-width:768px) { .footer-inner { grid-template-columns:1fr 1fr; } .footer-brand { grid-column:1 / -1; } }

        /* ===== 404-ish ===== */
        .zone-missing { padding:clamp(80px,12vw,140px) 0; text-align:center; }
        .zone-missing__num { font-family:var(--font-editorial); font-style:italic; font-weight:500; font-size:clamp(80px,14vw,160px); line-height:1; background:linear-gradient(135deg,var(--energy),var(--coral) 50%,var(--apple-blue)); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; letter-spacing:-0.04em; }
        .zone-missing__title { font-family:var(--font-display); font-weight:600; font-size:clamp(24px,3vw,32px); color:var(--text); margin:20px 0 10px; }
        .zone-missing__sub { font-size:16px; color:var(--text-secondary); max-width:480px; margin:0 auto 28px; }
        .zone-missing__cta { display:inline-flex; align-items:center; gap:8px; padding:11px 22px; border-radius:var(--radius-pill); background:linear-gradient(135deg,var(--energy),var(--coral)); color:#fff; font-weight:600; font-size:14px; box-shadow:0 10px 24px rgba(255,107,53,0.32); }
        .zone-missing__cta:hover { color:#fff; transform:translateY(-2px); box-shadow:0 14px 30px rgba(255,107,53,0.42); }
        .zone-missing__cta svg { width:16px; height:16px; }

        @media (max-width:720px) {
            .header-back span { display:none; }
            .header-back { padding:8px 12px; }
            .site-header__cta span:last-child { display:none; }
            .site-header__cta { padding:9px 14px; }
            .brand__chip { display:none; }
        }