:root {
    color-scheme: dark;
    --bg: #070912;
    --bg-soft: #0c0f1c;
    --panel: rgba(17, 21, 37, .82);
    --panel-solid: #111525;
    --panel-light: #171c2e;
    --line: rgba(194, 201, 255, .16);
    --line-strong: rgba(194, 201, 255, .28);
    --text: #f3f2fa;
    --muted: #afb5ca;
    --subtle: #7d849c;
    --violet: #9e86ff;
    --violet-bright: #c7baff;
    --cyan: #75dff4;
    --amber: #e9b86f;
    --blue: #6ea8ff;
    --radius-sm: 12px;
    --radius: 20px;
    --radius-lg: 30px;
    --shadow: 0 28px 80px rgba(0, 0, 0, .28);
    --container: 1180px;
    --narrow: 820px;
}

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

html { scroll-behavior: smooth; }

body {
    margin: 0;
    min-width: 320px;
    background:
        radial-gradient(circle at 82% 9%, rgba(108, 77, 214, .16), transparent 31rem),
        radial-gradient(circle at 10% 43%, rgba(50, 135, 163, .08), transparent 30rem),
        var(--bg);
    color: var(--text);
    font-family: Inter, "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, system-ui, sans-serif;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

body::before {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    content: "";
    opacity: .16;
    background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size: 68px 68px;
    mask-image: linear-gradient(to bottom, #000, transparent 85%);
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }

a:focus-visible, button:focus-visible {
    outline: 3px solid var(--cyan);
    outline-offset: 4px;
}

.skip-link {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 100;
    padding: 10px 14px;
    border-radius: 8px;
    background: #fff;
    color: #060812;
    transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-shell { overflow: clip; }
.container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
.container.narrow { width: min(var(--narrow), calc(100% - 40px)); }
.container.wide { width: min(1320px, calc(100% - 40px)); }
.section { padding-block: 104px; }

.eyebrow {
    margin: 0 0 14px;
    color: var(--violet-bright);
    font-size: .76rem;
    font-weight: 800;
    letter-spacing: .2em;
    text-transform: uppercase;
}

.site-header {
    position: relative;
    z-index: 20;
    border-bottom: 1px solid var(--line);
    background: rgba(7, 9, 18, .76);
    backdrop-filter: blur(18px);
}

.header-inner {
    min-height: 84px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}

.brand { display: inline-flex; align-items: center; gap: 13px; }
.brand-mark {
    position: relative;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(199, 186, 255, .62);
    border-radius: 50%;
    box-shadow: 0 0 28px rgba(158, 134, 255, .22), inset 0 0 18px rgba(117, 223, 244, .08);
}
.brand-mark::before, .brand-mark::after, .brand-mark span {
    position: absolute;
    inset: 6px;
    content: "";
    border: 1px solid rgba(117, 223, 244, .38);
    border-radius: 50%;
}
.brand-mark::after { inset: 12px; background: radial-gradient(circle, var(--violet-bright), transparent 70%); border: 0; }
.brand-copy { display: grid; line-height: 1.1; }
.brand-copy strong { font-size: 1.04rem; letter-spacing: .04em; }
.brand-copy small { margin-top: 5px; color: var(--subtle); font-size: .59rem; letter-spacing: .17em; }

.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a { position: relative; color: var(--muted); font-size: .88rem; font-weight: 700; }
.main-nav a::after {
    position: absolute;
    left: 0;
    right: 100%;
    bottom: -9px;
    height: 1px;
    content: "";
    background: var(--violet-bright);
    transition: right .2s ease;
}
.main-nav a:hover { color: var(--text); }
.main-nav a:hover::after { right: 0; }

.hero {
    position: relative;
    min-height: 720px;
    display: grid;
    align-items: center;
    border-bottom: 1px solid var(--line);
}
.hero::before {
    position: absolute;
    inset: 0;
    pointer-events: none;
    content: "";
    background:
        linear-gradient(90deg, var(--bg) 0%, transparent 47%),
        radial-gradient(circle at 72% 45%, rgba(114, 77, 218, .18), transparent 25rem);
}
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(420px, .94fr); align-items: center; gap: 52px; padding-block: 84px; }
.hero-copy { position: relative; z-index: 2; }
.hero h1 { margin: 0; font-size: clamp(3rem, 6.1vw, 5.7rem); line-height: 1.12; letter-spacing: -.055em; }
.hero h1 span { color: transparent; background: linear-gradient(110deg, #fff 5%, var(--violet-bright) 50%, var(--cyan)); background-clip: text; -webkit-background-clip: text; }
.hero-lead { max-width: 690px; margin: 30px 0 0; color: var(--muted); font-size: 1.02rem; line-height: 2; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }

.button {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 11px 20px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: .88rem;
    font-weight: 800;
    transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: linear-gradient(135deg, #b9aaff, #8368ef); color: #090a13; box-shadow: 0 10px 34px rgba(131, 104, 239, .26); }
.button-ghost { border-color: var(--line-strong); background: rgba(255,255,255,.025); color: var(--text); }
.button-ghost:hover { border-color: rgba(199, 186, 255, .58); background: rgba(158,134,255,.08); }

.hero-facts { display: flex; flex-wrap: wrap; gap: 0; margin: 48px 0 0; }
.hero-facts div { min-width: 130px; padding: 0 24px; border-left: 1px solid var(--line); }
.hero-facts div:first-child { padding-left: 0; border-left: 0; }
.hero-facts dt { color: var(--text); font-size: 1.1rem; font-weight: 800; letter-spacing: .03em; }
.hero-facts dd { margin: 2px 0 0; color: var(--subtle); font-size: .72rem; }

.portal-scene { position: relative; aspect-ratio: 1; display: grid; place-items: center; }
.portal-glow { position: absolute; width: 75%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(182,168,255,.24), rgba(97,65,181,.12) 34%, transparent 67%); filter: blur(13px); }
.portal-ring { position: absolute; border-radius: 50%; }
.ring-one { width: 72%; aspect-ratio: 1; border: 1px solid rgba(199,186,255,.58); box-shadow: 0 0 80px rgba(132,100,231,.16), inset 0 0 70px rgba(132,100,231,.11); animation: portalPulse 5s ease-in-out infinite; }
.ring-two { width: 55%; aspect-ratio: 1; border: 1px solid rgba(117,223,244,.34); box-shadow: 0 0 38px rgba(117,223,244,.11); }
.ring-one::before, .ring-one::after, .ring-two::before {
    position: absolute;
    inset: 8%;
    content: "";
    border: 1px dashed rgba(255,255,255,.14);
    border-radius: 50%;
    animation: spin 32s linear infinite;
}
.ring-one::after { inset: -8%; border-style: solid; border-color: rgba(255,255,255,.05); animation-direction: reverse; }
.ring-two::before { inset: -23%; border-color: rgba(117,223,244,.14); animation-duration: 23s; }
.portal-core { position: relative; z-index: 2; width: 29%; aspect-ratio: 1; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.38); border-radius: 50%; background: radial-gradient(circle at 38% 30%, #d9d0ff, #7250d5 34%, #181a38 70%); box-shadow: 0 0 50px rgba(158,134,255,.43), inset -15px -18px 30px rgba(7,9,18,.5); }
.portal-core span { color: rgba(255,255,255,.82); font-weight: 300; letter-spacing: .12em; }
.orbit-dot { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 16px var(--cyan); }
.dot-one { top: 17%; right: 19%; }
.dot-two { bottom: 21%; left: 13%; width: 4px; height: 4px; background: var(--violet-bright); }
.dot-three { top: 39%; left: 9%; width: 3px; height: 3px; background: #fff; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes portalPulse { 50% { transform: scale(1.025); opacity: .78; } }

.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 48px; margin-bottom: 40px; }
.section-heading.compact { margin-bottom: 34px; }
.section-heading h2 { margin: 0; font-size: clamp(2rem, 3.5vw, 3rem); line-height: 1.3; letter-spacing: -.035em; }
.section-heading > p { max-width: 480px; margin: 0; color: var(--muted); font-size: .92rem; }

.category-section { background: linear-gradient(180deg, rgba(17,21,37,.44), transparent); }
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.category-card { position: relative; min-height: 330px; display: flex; flex-direction: column; overflow: hidden; padding: 25px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, rgba(255,255,255,.035), rgba(255,255,255,.012)); transition: transform .25s ease, border-color .25s ease, background .25s ease; }
.category-card::before { position: absolute; inset: auto -30% -48% 15%; aspect-ratio: 1; content: ""; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--category-color) 20%, transparent), transparent 67%); opacity: .72; }
.category-card:hover { transform: translateY(-6px); border-color: color-mix(in srgb, var(--category-color) 58%, transparent); background: linear-gradient(145deg, color-mix(in srgb, var(--category-color) 8%, transparent), rgba(255,255,255,.015)); }
.category-number { color: var(--subtle); font-size: .7rem; font-weight: 700; letter-spacing: .16em; }
.category-symbol { position: relative; width: 68px; height: 68px; margin: 34px 0 28px; border: 1px solid color-mix(in srgb, var(--category-color) 48%, transparent); border-radius: 50%; box-shadow: 0 0 32px color-mix(in srgb, var(--category-color) 16%, transparent); }
.category-symbol::before, .category-symbol::after { position: absolute; inset: 13px; content: ""; border: 1px solid color-mix(in srgb, var(--category-color) 42%, transparent); border-radius: 50%; }
.category-symbol::after { inset: 25px; border: 0; background: var(--category-color); box-shadow: 0 0 18px var(--category-color); }
.category-card h3 { position: relative; margin: 0; font-size: 1.15rem; }
.category-card p { position: relative; margin: 12px 0 24px; color: var(--muted); font-size: .82rem; line-height: 1.8; }
.category-meta { position: relative; margin-top: auto; display: flex; align-items: center; justify-content: space-between; color: var(--subtle); font-size: .72rem; }
.category-meta b { color: var(--category-color); font-size: 1rem; }
.variant-violet { --category-color: var(--violet); }
.variant-amber { --category-color: var(--amber); }
.variant-cyan { --category-color: var(--cyan); }
.variant-blue { --category-color: var(--blue); }
.variant-neutral { --category-color: #aeb5ca; }

.article-section { border-top: 1px solid rgba(194,201,255,.08); }
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.post-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); box-shadow: 0 20px 60px rgba(0,0,0,.12); transition: transform .24s ease, border-color .24s ease; }
.post-card:hover { transform: translateY(-5px); border-color: var(--line-strong); }
.post-card-media { position: relative; aspect-ratio: 16 / 9; display: grid; place-items: center; overflow: hidden; background: radial-gradient(circle at 50% 45%, color-mix(in srgb, var(--category-color) 20%, #0a0d18), #090c16 70%); }
.post-card-media::after { position: absolute; inset: 0; content: ""; background: linear-gradient(to top, rgba(7,9,18,.45), transparent 55%); }
.post-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.post-card:hover .post-card-media img { transform: scale(1.035); }
.card-portal { width: 36%; aspect-ratio: 1; display: grid; place-items: center; border: 1px solid color-mix(in srgb, var(--category-color) 60%, transparent); border-radius: 50%; box-shadow: 0 0 38px color-mix(in srgb, var(--category-color) 20%, transparent); }
.card-portal::before { width: 70%; aspect-ratio: 1; content: ""; border: 1px dashed color-mix(in srgb, var(--category-color) 55%, transparent); border-radius: 50%; }
.card-portal i { position: absolute; width: 8%; aspect-ratio: 1; border-radius: 50%; background: var(--category-color); box-shadow: 0 0 15px var(--category-color); }
.ai-image-label { position: absolute; z-index: 2; right: 12px; bottom: 12px; padding: 5px 8px; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; background: rgba(6,8,16,.78); color: #e8e7f1; font-size: .62rem; backdrop-filter: blur(8px); }
.post-card-body { padding: 22px; }
.category-pill { display: inline-flex; padding: 5px 9px; border: 1px solid color-mix(in srgb, var(--category-color) 46%, transparent); border-radius: 999px; color: color-mix(in srgb, var(--category-color) 85%, white); font-size: .65rem; font-weight: 800; }
.post-card h3 { margin: 15px 0 10px; font-size: 1.14rem; line-height: 1.55; letter-spacing: -.01em; }
.post-card h3 a:hover { color: var(--violet-bright); }
.post-card-body > p { display: -webkit-box; overflow: hidden; margin: 0; color: var(--muted); font-size: .82rem; line-height: 1.8; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }
.post-card-meta { display: flex; justify-content: space-between; gap: 12px; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--subtle); font-size: .68rem; }

.empty-state { position: relative; min-height: 330px; display: grid; place-items: center; align-content: center; overflow: hidden; padding: 44px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: linear-gradient(145deg, rgba(158,134,255,.06), rgba(117,223,244,.02)); text-align: center; }
.empty-state.small { min-height: 240px; }
.empty-state h3 { margin: 18px 0 8px; font-size: 1.4rem; }
.empty-state p { max-width: 620px; margin: 0; color: var(--muted); }
.empty-orbit { position: relative; width: 64px; height: 64px; border: 1px solid rgba(199,186,255,.5); border-radius: 50%; box-shadow: 0 0 28px rgba(158,134,255,.18); }
.empty-orbit::before { position: absolute; inset: 10px; content: ""; border: 1px dashed rgba(117,223,244,.38); border-radius: 50%; }

.principles-section { border-top: 1px solid var(--line); background: linear-gradient(155deg, rgba(117,223,244,.025), rgba(158,134,255,.07)); }
.principles-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: start; }
.principles-intro { position: sticky; top: 40px; }
.principles-intro h2 { margin: 0; font-size: clamp(2rem, 3.8vw, 3.25rem); line-height: 1.45; letter-spacing: -.04em; }
.principle-list { margin: 0; padding: 0; list-style: none; }
.principle-list li { display: grid; grid-template-columns: 58px 1fr; gap: 18px; padding: 28px 0; border-top: 1px solid var(--line); }
.principle-list li:last-child { border-bottom: 1px solid var(--line); }
.principle-list > li > span { color: var(--violet-bright); font-family: ui-monospace, monospace; font-size: .75rem; }
.principle-list h3 { margin: 0 0 8px; font-size: 1.1rem; }
.principle-list p { margin: 0; color: var(--muted); font-size: .88rem; }

.page-hero { position: relative; padding: 90px 0 72px; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 70% 30%, color-mix(in srgb, var(--category-color, var(--violet)) 12%, transparent), transparent 30rem); }
.page-hero h1 { margin: 0; font-size: clamp(2.7rem, 6vw, 5.2rem); line-height: 1.18; letter-spacing: -.055em; }
.page-lead { max-width: 680px; margin: 24px 0 0; color: var(--muted); font-size: 1rem; line-height: 2; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 48px; color: var(--subtle); font-size: .72rem; }
.breadcrumbs a:hover { color: var(--text); }
.policy-note { margin-top: 36px; padding: 20px 22px; border-left: 2px solid var(--category-color); background: color-mix(in srgb, var(--category-color) 5%, transparent); }
.policy-note strong { font-size: .76rem; }
.policy-note p { margin: 5px 0 0; color: var(--muted); font-size: .82rem; }
.static-page-hero { --category-color: var(--violet); }

.article-page { padding-bottom: 100px; }
.article-header { padding: 70px 0 60px; }
.article-lead-grid { display: grid; align-items: center; gap: clamp(34px, 5vw, 72px); }
.article-lead-grid.has-visual { grid-template-columns: minmax(0, 1.02fr) minmax(360px, .98fr); }
.article-lead-grid.no-visual { grid-template-columns: minmax(0, 900px); justify-content: center; }
.article-lead-copy { min-width: 0; }
.article-header .breadcrumbs { margin-bottom: 34px; }
.article-header h1 { max-width: 880px; margin: 24px 0 0; font-size: clamp(2.35rem, 4.7vw, 4.45rem); line-height: 1.25; letter-spacing: -.05em; }
.article-subtitle { max-width: 760px; margin: 22px 0 0; color: var(--muted); font-size: 1.06rem; }
.article-lead-excerpt { max-width: 720px; margin: 25px 0 0; color: #d8d9e3; font-size: 1rem; line-height: 2; }
.article-meta { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 30px; color: var(--subtle); font-size: .72rem; }
.article-meta span + span, .article-meta time + span { padding-left: 18px; border-left: 1px solid var(--line); }
.article-lead-visual { position: relative; overflow: hidden; margin: 0; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--panel-solid); box-shadow: var(--shadow); }
.article-lead-visual::after { position: absolute; inset: 0; pointer-events: none; content: ""; box-shadow: inset 0 0 80px rgba(7, 9, 18, .24); }
.article-lead-visual img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.article-lead-visual figcaption, .inline-figure figcaption { position: relative; z-index: 1; display: flex; justify-content: space-between; gap: 20px; padding: 12px 16px; color: var(--subtle); font-size: .68rem; }
.article-lead-visual figcaption strong, .inline-figure figcaption strong { color: var(--violet-bright); font-weight: 700; white-space: nowrap; }
.article-layout { display: grid; grid-template-columns: minmax(0, 760px) minmax(230px, 1fr); gap: 64px; align-items: start; }
.article-main { min-width: 0; }
.ai-disclosure { display: grid; grid-template-columns: auto 1fr; gap: 18px; margin: 34px 0 44px; padding: 19px 21px; border: 1px solid rgba(158,134,255,.26); border-radius: var(--radius-sm); background: rgba(158,134,255,.055); }
.ai-disclosure span { align-self: start; padding: 5px 8px; border-radius: 5px; background: rgba(158,134,255,.17); color: var(--violet-bright); font-family: ui-monospace, monospace; font-size: .62rem; font-weight: 800; }
.ai-disclosure p { margin: 0; color: var(--muted); font-size: .78rem; }

.article-content { color: #d6d8e2; font-size: 1rem; line-height: 2.05; }
.article-content h2 { margin: 64px 0 22px; padding-bottom: 12px; border-bottom: 1px solid var(--line); color: var(--text); font-size: 1.8rem; line-height: 1.5; letter-spacing: -.025em; }
.article-content h3 { margin: 42px 0 16px; color: var(--text); font-size: 1.35rem; }
.article-content p { margin: 0 0 24px; }
.article-content a, .prose-page a, .source-list a { color: var(--cyan); text-decoration: underline; text-underline-offset: 3px; }
.article-content blockquote { margin: 34px 0; padding: 18px 24px; border-left: 2px solid var(--violet); background: rgba(158,134,255,.05); color: #c9cbd8; }
.article-content li + li { margin-top: 8px; }
.article-content code { padding: 2px 5px; border-radius: 4px; background: #171b2b; color: #d4ccff; }
.article-content pre { overflow-x: auto; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #090c16; }
.article-content table { width: 100%; margin: 30px 0; border-collapse: collapse; font-size: .86rem; }
.article-content th, .article-content td { padding: 12px; border: 1px solid var(--line); text-align: left; }
.article-content th { background: rgba(255,255,255,.04); }

.inline-figure { overflow: hidden; margin: 46px 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel-solid); }
.inline-figure img { width: 100%; max-height: 640px; object-fit: cover; }
.evidence-panel { margin: 50px 0; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.022); }
.evidence-panel .panel-label { margin: 0 0 8px; color: var(--panel-color, var(--violet-bright)); font-family: ui-monospace, monospace; font-size: .65rem; font-weight: 800; letter-spacing: .15em; }
.evidence-panel h2 { margin: 0 0 18px; font-size: 1.5rem; }
.evidence-panel p { color: var(--muted); }
.evidence-panel p:last-child { margin-bottom: 0; }
.fact-panel { --panel-color: var(--cyan); border-color: rgba(117,223,244,.22); }
.hypothesis-panel { --panel-color: var(--violet-bright); border-color: rgba(158,134,255,.3); background: rgba(158,134,255,.045); }
.counter-panel { --panel-color: var(--amber); border-color: rgba(233,184,111,.22); }
.panel-warning { padding: 12px 14px; border-left: 2px solid var(--violet); background: rgba(7,9,18,.42); font-size: .76rem; }

.article-sidebar { position: sticky; top: 30px; }
.sidebar-card { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.sidebar-card h2 { margin: 0 0 11px; font-size: 1.05rem; }
.sidebar-card p:not(.eyebrow) { margin: 0; color: var(--muted); font-size: .78rem; }
.sidebar-card a { display: inline-block; margin-top: 18px; color: var(--violet-bright); font-size: .75rem; font-weight: 700; }

.sources-section { margin-top: 74px; padding-top: 42px; border-top: 1px solid var(--line-strong); }
.sources-heading h2 { margin: 0; font-size: 1.7rem; }
.source-list { margin: 28px 0 0; padding: 0; list-style: none; }
.source-list li { display: grid; grid-template-columns: 44px 1fr; gap: 14px; padding: 20px 0; border-top: 1px solid var(--line); }
.source-list li:last-child { border-bottom: 1px solid var(--line); }
.source-number { color: var(--violet-bright); font-family: ui-monospace, monospace; font-size: .68rem; }
.source-list h3 { margin: 0 0 7px; font-size: .92rem; line-height: 1.6; }
.source-byline { display: flex; flex-wrap: wrap; gap: 12px; margin: 0 0 5px; color: var(--subtle); font-size: .68rem; }
.source-list a { font-size: .72rem; }
.source-empty { color: var(--muted); }

.prose-page { width: min(800px, calc(100% - 40px)); padding-block: 72px 110px; }
.prose-page section + section { margin-top: 54px; padding-top: 44px; border-top: 1px solid var(--line); }
.prose-page h2 { margin: 0 0 18px; font-size: 1.55rem; line-height: 1.55; }
.prose-page p, .prose-page li { color: #c2c6d4; line-height: 2; }
.prose-page ul { padding-left: 1.4em; }
.prose-page .button { color: #090a13; text-decoration: none; }

.not-found-page { min-height: 650px; display: grid; place-items: center; padding: 80px 0; }
.not-found-inner { position: relative; text-align: center; }
.not-found-code { position: absolute; inset: 50% auto auto 50%; z-index: -1; color: rgba(158,134,255,.065); font-size: clamp(10rem, 32vw, 28rem); font-weight: 900; line-height: 1; transform: translate(-50%, -50%); }
.not-found-inner h1 { margin: 0; font-size: clamp(2.2rem, 5vw, 4.3rem); line-height: 1.45; letter-spacing: -.04em; }
.not-found-inner > p:not(.eyebrow) { max-width: 580px; margin: 24px auto 30px; color: var(--muted); }

.site-footer { padding: 64px 0 24px; border-top: 1px solid var(--line); background: rgba(5,7,14,.8); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 70px; }
.footer-brand { font-size: 1.1rem; font-weight: 800; }
.footer-grid p { max-width: 520px; margin: 12px 0 0; color: var(--subtle); font-size: .78rem; }
.footer-nav { display: grid; grid-template-columns: repeat(2, auto); gap: 10px 30px; }
.footer-nav a { color: var(--muted); font-size: .76rem; }
.footer-nav a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; margin-top: 46px; padding-top: 20px; border-top: 1px solid var(--line); color: #686f84; font-size: .64rem; }

@media (max-width: 980px) {
    .hero { min-height: auto; }
    .hero-grid { grid-template-columns: 1fr; }
    .portal-scene { width: min(520px, 85vw); margin: -30px auto -80px; opacity: .8; }
    .category-grid { grid-template-columns: repeat(2, 1fr); }
    .post-grid { grid-template-columns: repeat(2, 1fr); }
    .principles-grid { grid-template-columns: 1fr; gap: 46px; }
    .principles-intro { position: static; }
    .article-lead-grid.has-visual { grid-template-columns: 1fr; }
    .article-lead-visual { width: min(760px, 100%); }
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { position: static; }
    .footer-grid { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 700px) {
    .container, .container.narrow, .container.wide, .article-container, .prose-page { width: min(100% - 28px, var(--container)); }
    .section { padding-block: 76px; }
    .header-inner { min-height: 72px; }
    .brand-copy small { display: none; }
    .main-nav { gap: 15px; }
    .main-nav a { font-size: .72rem; }
    .main-nav a:nth-child(2) { display: none; }
    .hero-grid { padding-block: 68px; }
    .hero h1 { font-size: clamp(2.7rem, 14vw, 4.4rem); }
    .hero-lead br { display: none; }
    .hero-facts { gap: 20px 0; }
    .hero-facts div { min-width: 50%; }
    .hero-facts div:nth-child(3) { padding-left: 0; border-left: 0; }
    .portal-scene { margin-bottom: -30px; }
    .section-heading { display: block; }
    .section-heading > p { margin-top: 18px; }
    .category-grid, .post-grid { grid-template-columns: 1fr; }
    .category-card { min-height: 285px; }
    .principles-intro h2 br { display: none; }
    .page-hero { padding: 64px 0 54px; }
    .breadcrumbs { margin-bottom: 34px; }
    .article-header { padding-top: 50px; }
    .article-header h1 { font-size: clamp(2.15rem, 10.5vw, 3.5rem); }
    .article-lead-grid { gap: 34px; }
    .article-lead-visual { border-radius: 18px; }
    .article-layout { gap: 44px; }
    .article-lead-excerpt { font-size: .95rem; }
    .ai-disclosure { grid-template-columns: 1fr; }
    .evidence-panel { padding: 22px; }
    .article-content { font-size: .95rem; }
    .article-content h2 { font-size: 1.55rem; }
    .article-lead-visual figcaption, .inline-figure figcaption { display: grid; }
    .source-list li { grid-template-columns: 34px 1fr; }
    .footer-nav { grid-template-columns: 1fr; }
    .footer-bottom { display: grid; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}