:root {
    --bg-deep: #010101;
    --bg-soft: rgba(10, 10, 10, 0.65);
    --titanium-blue: #00f7ff;
    --neon-cyan: #14a3ff;
    --text-primary: #ffffff;
    --text-secondary: #aaaaaa;
    --text-muted: #7f858b;
    --border-glow: rgba(0, 247, 255, 0.15);
    --border-strong: rgba(0, 247, 255, 0.35);
    --card-bg: rgba(10, 10, 10, 0.32);
    --surface-strong: rgba(0, 0, 0, 0.84);
    --shadow-glow: 0 20px 40px rgba(0, 0, 0, 0.45);
    --font-display: 'Orbitron', 'Noto Sans SC', sans-serif;
    --font-body: 'Noto Sans SC', 'Orbitron', sans-serif;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    min-height: 100%;
    overflow-x: hidden;
    background-color: var(--bg-deep);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.8;
    scroll-behavior: smooth;
}

body.menu-open { overflow: hidden; }

main { display: block; }
a { color: inherit; }
img { max-width: 100%; display: block; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: fixed;
    top: 12px;
    left: 12px;
    transform: translateY(-220%);
    background: rgba(0, 0, 0, 0.92);
    color: var(--text-primary);
    border: 1px solid var(--titanium-blue);
    padding: 10px 14px;
    text-decoration: none;
    z-index: 1002;
    transition: transform 0.2s ease;
    font-size: 12px;
    letter-spacing: 1px;
}
.skip-link:focus { transform: translateY(0); }

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

#intro-overlay {
    position: fixed;
    inset: 0;
    background-color: var(--bg-deep);
    z-index: 999;
    display: none;
    justify-content: center;
    align-items: center;
    transition: opacity 1s ease;
}
body[data-intro="true"] #intro-overlay { display: flex; }
.intro-logo {
    text-align: center;
    transition: 1s ease;
    width: 100%;
}
.intro-logo .eng {
    font-family: var(--font-display);
    font-size: clamp(36px, 8vw, 72px);
    font-weight: 700;
    color: var(--titanium-blue);
    letter-spacing: clamp(4px, 2vw, 16px);
}
.shatter { transform: scale(1.5); filter: blur(30px); opacity: 0; }

#webgl-container {
    position: fixed;
    inset: 0;
    z-index: 0;
}
#content-layer {
    position: relative;
    z-index: 10;
    width: 100%;
    opacity: 1;
}
body[data-intro="true"] #content-layer {
    opacity: 0;
    transition: opacity 1.5s ease;
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    height: 90px;
    padding: 0 42px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-glow);
    z-index: 100;
}
.logo-shell {
    display: flex;
    align-items: center;
    gap: 14px;
}
.logo {
    font-family: var(--font-display);
    font-size: clamp(20px, 3vw, 28px);
    font-weight: 700;
    color: var(--titanium-blue);
    letter-spacing: 3px;
    text-decoration: none;
    white-space: nowrap;
}
.logo .cn-text {
    font-family: var(--font-body);
    font-weight: 500;
}
.lang-switch {
    display: flex;
    gap: 4px;
    background: rgba(0, 247, 255, 0.1);
    border: 1px solid var(--border-glow);
    border-radius: 4px;
    padding: 4px;
    white-space: nowrap;
    flex-shrink: 0;
}
.lang-btn {
    padding: 6px 12px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 1px;
    transition: all 0.3s;
    border-radius: 2px;
    font-family: var(--font-display);
}
.lang-btn.active {
    background: var(--titanium-blue);
    color: var(--bg-deep);
}
.lang-btn:hover:not(.active) { color: var(--titanium-blue); }

nav {
    display: flex;
    align-items: center;
    gap: 14px;
}
nav a {
    color: #fff;
    text-decoration: none;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: 0.3s;
    font-family: var(--font-display);
    position: relative;
}
nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 1px;
    background: var(--titanium-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
}
nav a:hover,
nav a[aria-current="page"] {
    color: var(--titanium-blue);
    text-shadow: 0 0 10px rgba(0, 247, 255, 0.45);
}
nav a:hover::after,
nav a[aria-current="page"]::after { transform: scaleX(1); }

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    z-index: 101;
    background: transparent;
    border: none;
    padding: 0;
    appearance: none;
}
.menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--titanium-blue);
    transition: 0.3s;
}

.page-main section,
.home-main section {
    box-sizing: border-box;
    scroll-margin-top: 100px;
}

.home-main section {
    min-height: 100vh;
    padding: 120px 10% 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.page-main section {
    min-height: auto;
    padding: 120px 10% 72px;
}

#hero {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-left: 5%;
    padding-right: 5%;
}
#hero h1 {
    font-family: var(--font-display);
    font-size: clamp(52px, 12vw, 100px);
    letter-spacing: clamp(4px, 2vw, 16px);
    margin: 0;
    line-height: 1.2;
}
.typing-container {
    margin-top: 50px;
    min-height: 40px;
    max-width: 90%;
}
.typing-text {
    font-size: clamp(20px, 4vw, 32px);
    color: var(--text-secondary);
    letter-spacing: 2px;
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.6;
}
.cursor {
    display: inline-block;
    width: 3px;
    height: 1em;
    background: var(--titanium-blue);
    margin-left: 4px;
    animation: blink 1s infinite;
    vertical-align: middle;
}

.page-hero {
    min-height: 72vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 18px;
    padding-top: 148px;
}
.page-hero .eyebrow,
.section-overline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--titanium-blue);
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
}
.page-hero .eyebrow::before,
.section-overline::before {
    content: '';
    width: 36px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--titanium-blue));
}
.page-title {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(40px, 7vw, 76px);
    letter-spacing: clamp(2px, 1vw, 7px);
    line-height: 1.15;
}
.page-subtitle,
.section-intro {
    max-width: 940px;
    font-size: clamp(16px, 1.8vw, 19px);
    color: var(--text-secondary);
    margin: 0;
}
.section-title {
    font-family: var(--font-display);
    font-size: clamp(28px, 4vw, 48px);
    border-left: 8px solid var(--titanium-blue);
    padding-left: 22px;
    margin: 0 0 24px;
    text-transform: uppercase;
    letter-spacing: 4px;
}
.section-intro { margin-bottom: 34px; }

.glass-card,
.matrix-card,
.tower-card,
.kpi-card,
.timeline-card,
.footer-card,
.quote-card,
.pillar-card,
.surface-card,
.product-card,
.role-card,
.trait-card,
.arch-card,
.rail-card,
.blueprint-card,
.highlight-card,
.whitepaper-card,
.eco-card {
    background: var(--card-bg);
    border: 1px solid var(--border-glow);
    backdrop-filter: blur(6px);
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}
.glass-card:hover,
.matrix-card:hover,
.tower-card:hover,
.kpi-card:hover,
.timeline-card:hover,
.footer-card:hover,
.quote-card:hover,
.pillar-card:hover,
.surface-card:hover,
.product-card:hover,
.role-card:hover,
.trait-card:hover,
.arch-card:hover,
.rail-card:hover,
.blueprint-card:hover,
.highlight-card:hover,
.whitepaper-card:hover,
.eco-card:hover {
    border-color: var(--titanium-blue);
    box-shadow: var(--shadow-glow);
    background: rgba(10,10,10,0.58);
}
.matrix-card::before,
.product-card::before,
.arch-card::before,
.rail-card::before,
.whitepaper-card::before,
.blueprint-card::before,
.highlight-card::before,
.quote-card::before,
.role-card::before,
.trait-card::before,
.surface-card::before,
.pillar-card::before,
.eco-card::before {
    content: '';
    position: absolute;
    left: -100%;
    top: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--titanium-blue), transparent);
    transition: 0.55s ease;
}
.matrix-card:hover::before,
.product-card:hover::before,
.arch-card:hover::before,
.rail-card:hover::before,
.whitepaper-card:hover::before,
.blueprint-card:hover::before,
.highlight-card:hover::before,
.quote-card:hover::before,
.role-card:hover::before,
.trait-card:hover::before,
.surface-card:hover::before,
.pillar-card:hover::before,
.eco-card:hover::before {
    left: 100%;
}

.tower-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
}
.tower-card {
    padding: 38px 22px;
    text-align: center;
}
.tower-card .letter {
    font-family: var(--font-display);
    font-size: clamp(40px, 6vw, 60px);
    font-weight: 700;
    color: var(--titanium-blue);
    margin-bottom: 10px;
    display: block;
    opacity: 0.82;
}
.tower-card h3 {
    font-size: clamp(14px, 2vw, 18px);
    margin: 10px 0;
    color: #fff;
    letter-spacing: 1px;
    font-family: var(--font-display);
}
.tower-card p {
    font-size: clamp(11px, 1.5vw, 13px);
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

.cards-2,
.cards-3,
.cards-4,
.cards-6,
.kpi-grid,
.products-grid,
.pillars-grid,
.surface-grid,
.traits-grid,
.roles-grid,
.blueprint-grid,
.lifecycle-grid,
.eco-grid,
.arch-grid,
.rails-grid,
.fabric-grid,
.footer-grid,
.action-grid {
    display: grid;
    gap: 24px;
}
.cards-2,
.arch-grid,
.rails-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cards-3,
.pillars-grid,
.surface-grid,
.traits-grid,
.blueprint-grid,
.fabric-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards-4,
.kpi-grid,
.lifecycle-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.roles-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards-6,
.products-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.eco-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.footer-grid { grid-template-columns: 1.3fr 1fr 1fr; }
.action-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.matrix-card,
.product-card,
.arch-card,
.rail-card,
.blueprint-card,
.surface-card,
.pillar-card,
.role-card,
.trait-card,
.timeline-card,
.kpi-card,
.highlight-card,
.quote-card,
.whitepaper-card,
.eco-card {
    padding: 30px;
}
.matrix-card h3,
.product-card h3,
.arch-card h3,
.rail-card h3,
.blueprint-card h3,
.surface-card h3,
.pillar-card h3,
.role-card h3,
.trait-card h3,
.quote-card h3,
.whitepaper-card h3,
.eco-card h3 {
    margin: 0 0 14px;
    color: var(--titanium-blue);
    font-family: var(--font-display);
    font-size: clamp(18px, 2vw, 28px);
    line-height: 1.3;
}
.product-kicker,
.card-kicker {
    margin: 0 0 12px;
    color: #ffffff;
    font-size: 13px;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-family: var(--font-display);
}
.matrix-card p,
.product-card p,
.arch-card p,
.rail-card p,
.blueprint-card p,
.surface-card p,
.pillar-card p,
.role-card p,
.trait-card p,
.highlight-card p,
.quote-card p,
.whitepaper-card p,
.eco-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 15px;
}
.matrix-card ul,
.product-card ul,
.arch-card ul,
.rail-card ul,
.highlight-card ul,
.eco-card ul {
    list-style: none;
    padding: 0;
    margin: 18px 0 0;
}
.matrix-card li,
.product-card li,
.arch-card li,
.rail-card li,
.highlight-card li,
.eco-card li {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.65;
}
.matrix-card li::before,
.product-card li::before,
.arch-card li::before,
.rail-card li::before,
.highlight-card li::before,
.eco-card li::before {
    content: '>';
    color: var(--titanium-blue);
    font-weight: 700;
    font-family: var(--font-display);
}

.product-badge,
.page-chip,
.metric-note,
.inline-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: fit-content;
    gap: 6px;
    border: 1px solid var(--border-strong);
    padding: 5px 10px;
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 1px;
    color: var(--titanium-blue);
    text-transform: uppercase;
    background: rgba(0, 247, 255, 0.08);
}
.page-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}
.role-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 18px;
}
.role-meta span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 30px;
    padding: 6px 12px;
    border: 1px solid var(--border-strong);
    background: rgba(0, 247, 255, 0.08);
    color: var(--titanium-blue);
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.4px;
    line-height: 1;
    white-space: nowrap;
}
.product-link,
.text-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 18px;
    color: var(--titanium-blue);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.product-link:hover,
.text-link:hover { text-shadow: 0 0 10px rgba(0,247,255,0.45); }

.section-link-row {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 22px;
}
.section-link-row .text-link {
    margin-top: 0;
}

.kpi-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 220px;
}
.metric-value {
    font-family: var(--font-display);
    font-size: clamp(34px, 5vw, 52px);
    color: var(--titanium-blue);
    line-height: 1;
    margin: 0 0 18px;
}
.metric-label {
    margin: 0 0 10px;
    color: #ffffff;
    font-size: 14px;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-family: var(--font-display);
}
.metric-note {
    margin-top: 18px;
}

.table-wrap {
    margin-top: 28px;
    border: 1px solid var(--border-glow);
    background: rgba(4, 4, 4, 0.6);
    overflow: auto;
    backdrop-filter: blur(4px);
}
table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}
thead th {
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--titanium-blue);
    background: rgba(0,247,255,0.07);
}
th, td {
    padding: 16px 18px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    vertical-align: top;
    text-align: left;
    color: var(--text-secondary);
    font-size: 14px;
}
tbody td:first-child {
    color: #ffffff;
    font-family: var(--font-display);
}
tbody tr:hover td {
    background: rgba(255,255,255,0.02);
}

.split-layout {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 28px;
    align-items: stretch;
}
.quote-card blockquote {
    margin: 0;
    font-size: clamp(24px, 3vw, 34px);
    line-height: 1.45;
    color: #ffffff;
}
.quote-card cite {
    display: block;
    margin-top: 20px;
    color: var(--text-muted);
    font-style: normal;
    font-size: 13px;
}
.copy-stack {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.copy-stack p { margin: 0; color: var(--text-secondary); }

.pillar-card,
.surface-card,
.blueprint-card,
.trait-card {
    min-height: 220px;
}
.role-card { min-height: 220px; }

.lifecycle-grid { margin-top: 8px; }
.timeline-card {
    padding: 26px;
    min-height: 220px;
}
.timeline-step {
    width: 48px;
    height: 48px;
    border-radius: 999px;
    border: 1px solid var(--border-strong);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--titanium-blue);
    font-family: var(--font-display);
    margin-bottom: 18px;
    background: rgba(0,247,255,0.08);
}
.timeline-card h3 {
    margin: 0 0 12px;
    color: #ffffff;
    font-family: var(--font-display);
    font-size: 18px;
}
.timeline-card p { margin: 0; color: var(--text-secondary); font-size: 14px; }

.cta-panel {
    padding: 38px;
    border: 1px solid var(--border-strong);
    background:
        radial-gradient(circle at top right, rgba(0,247,255,0.12), transparent 28%),
        rgba(0,0,0,0.72);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}
.cta-panel::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid rgba(0,247,255,0.08);
    pointer-events: none;
}
.cta-panel h2,
.cta-panel h3 {
    margin: 0 0 14px;
    font-family: var(--font-display);
    font-size: clamp(26px, 3vw, 42px);
    letter-spacing: 2px;
    color: #ffffff;
}
.cta-panel p {
    margin: 0;
    color: var(--text-secondary);
    max-width: 860px;
}
.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 28px;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 18px;
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: all 0.28s ease;
}
.btn-primary {
    background: var(--titanium-blue);
    color: var(--bg-deep);
    border: 1px solid var(--titanium-blue);
}
.btn-primary:hover {
    box-shadow: 0 0 20px rgba(0,247,255,0.35);
    transform: translateY(-1px);
}
.btn-secondary {
    border: 1px solid var(--border-strong);
    color: var(--text-primary);
    background: rgba(0,247,255,0.06);
}
.btn-secondary:hover {
    border-color: var(--titanium-blue);
    color: var(--titanium-blue);
}

.location-row,
.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.whitepaper-card .cta-actions { margin-top: 24px; }

footer {
    padding: 48px 10%;
    border-top: 1px solid var(--border-glow);
    background: #000;
}
footer .footer-logo {
    font-family: var(--font-display);
    color: var(--titanium-blue);
    font-size: 24px;
    letter-spacing: 3px;
    margin-bottom: 14px;
}
footer p,
footer div,
footer a {
    color: var(--text-muted);
    font-size: 13px;
    text-decoration: none;
}
footer a:hover { color: var(--titanium-blue); }
.footer-links {
    flex-direction: column;
    align-items: flex-start;
}
.footer-meta {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-bottom {
    margin-top: 26px;
    padding-top: 22px;
    border-top: 1px solid rgba(255,255,255,0.06);
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.menu-toggle:focus-visible,
.lang-btn:focus-visible,
nav a:focus-visible,
.btn:focus-visible,
.product-link:focus-visible,
.text-link:focus-visible,
.skip-link:focus-visible {
    outline: 2px solid var(--titanium-blue);
    outline-offset: 4px;
}

.no-js-message {
    position: relative;
    z-index: 1000;
    margin: 16px;
    padding: 12px 16px;
    border: 1px solid rgba(0, 247, 255, 0.35);
    background: rgba(0, 0, 0, 0.85);
    color: #fff;
    font-size: 14px;
    line-height: 1.6;
}

@media screen and (max-width: 1320px) {
    .cards-4,
    .lifecycle-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .roles-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .cards-3,
    .pillars-grid,
    .surface-grid,
    .traits-grid,
    .blueprint-grid,
    .fabric-grid,
    .footer-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .cards-6,
    .products-grid,
    .eco-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .tower-grid { grid-template-columns: repeat(3, 1fr); }
}

@media screen and (max-width: 1180px) {
    nav { gap: 10px; }
    nav a { font-size: 10px; }
}

@media screen and (max-width: 980px) {
    header { height: 76px; padding: 0 20px; }
    .menu-toggle { display: flex; }
    nav {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.96);
        backdrop-filter: blur(15px);
        flex-direction: column;
        padding: 16px 20px 20px;
        display: none;
        border-bottom: 1px solid var(--border-glow);
        gap: 0;
    }
    nav.active { display: flex; }
    nav a {
        width: 100%;
        padding: 14px 0;
        border-bottom: 1px solid rgba(255,255,255,0.08);
        text-align: center;
    }
    nav a:last-child { border-bottom: none; }
    .lang-switch {
        position: absolute;
        right: 64px;
        top: 50%;
        transform: translateY(-50%);
    }
    .home-main section { padding: 100px 5% 60px; min-height: auto; }
    .page-main section { padding: 104px 5% 60px; }
    #hero {
        min-height: 100vh;
        padding: 80px 5% 60px;
    }
    #hero h1 { font-size: clamp(42px, 14vw, 60px); letter-spacing: clamp(3px, 4vw, 8px); }
    .typing-container { margin-top: 35px; max-width: 95%; }
    .typing-text { font-size: clamp(16px, 5vw, 22px); line-height: 1.8; letter-spacing: 1px; }
    .cursor { width: 2px; height: 0.9em; }
    .page-hero { min-height: auto; padding-top: 118px; }
    .section-title { border-left-width: 6px; padding-left: 15px; margin-bottom: 20px; }
    .split-layout,
    .cards-2,
    .arch-grid,
    .rails-grid,
    .footer-grid,
    .action-grid {
        grid-template-columns: 1fr;
    }
    .tower-grid { grid-template-columns: 1fr; gap: 12px; }
    .cards-3,
    .pillars-grid,
    .surface-grid,
    .traits-grid,
    .blueprint-grid,
    .fabric-grid,
    .cards-4,
    .roles-grid,
    .lifecycle-grid,
    .cards-6,
    .products-grid,
    .eco-grid,
    .kpi-grid {
        grid-template-columns: 1fr;
    }
    footer { padding: 36px 5%; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media screen and (max-width: 480px) {
    header { height: 60px; padding: 0 15px; }
    nav { top: 60px; }
    .logo { font-size: 16px; }
    .lang-switch { right: 52px; }
    .lang-btn { padding: 4px 8px; font-size: 11px; }
    .menu-toggle span { width: 20px; }
    .intro-logo .eng { font-size: 32px; letter-spacing: 4px; }
    #hero { padding: 60px 4% 40px; }
    #hero h1 { font-size: 38px; letter-spacing: 3px; }
    .typing-container { margin-top: 30px; }
    .typing-text { font-size: 16px; }
    .home-main section,
    .page-main section { padding: 84px 4% 48px; }
    .section-title { font-size: 20px; border-left-width: 4px; padding-left: 12px; }
    .page-title { font-size: 34px; letter-spacing: 2px; }
    .matrix-card,
    .product-card,
    .arch-card,
    .rail-card,
    .blueprint-card,
    .surface-card,
    .pillar-card,
    .role-card,
    .trait-card,
    .timeline-card,
    .kpi-card,
    .highlight-card,
    .quote-card,
    .whitepaper-card,
    .eco-card,
    .cta-panel {
        padding: 22px 18px;
    }
    table { min-width: 620px; }
}

@media (hover: none) {
    .tower-card:hover,
    .matrix-card:hover,
    .product-card:hover,
    .arch-card:hover,
    .rail-card:hover,
    .kpi-card:hover,
    .role-card:hover,
    .trait-card:hover,
    .blueprint-card:hover,
    .surface-card:hover,
    .pillar-card:hover,
    .whitepaper-card:hover,
    .highlight-card:hover,
    .eco-card:hover { transform: none; }
}


/* Final expansion */
.trust-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}
.trust-item {
    padding: 22px 20px;
    border: 1px solid var(--border-glow);
    background: rgba(0, 0, 0, 0.52);
    backdrop-filter: blur(6px);
}
.trust-item h3 {
    margin: 0 0 12px;
    color: var(--titanium-blue);
    font-family: var(--font-display);
    font-size: 15px;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.trust-item p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
}
.preview-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}
.preview-frame {
    padding: 18px;
    border: 1px solid var(--border-glow);
    background: rgba(0, 0, 0, 0.56);
    backdrop-filter: blur(8px);
}
.preview-frame img {
    width: 100%;
    border: 1px solid rgba(255,255,255,0.08);
    background: #080808;
}
.preview-frame h3 {
    margin: 16px 0 8px;
    color: #fff;
    font-family: var(--font-display);
    font-size: 16px;
}
.preview-frame p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
}
.form-card {
    padding: 30px;
    border: 1px solid var(--border-strong);
    background: rgba(0, 0, 0, 0.64);
    backdrop-filter: blur(10px);
}
.contact-form {
    display: grid;
    gap: 16px;
}
.form-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}
.contact-form label {
    display: flex;
    flex-direction: column;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 13px;
    letter-spacing: 0.5px;
}
.contact-form input,
.contact-form textarea,
.contact-form select {
    width: 100%;
    border: 1px solid rgba(255,255,255,0.12);
    background: rgba(255,255,255,0.03);
    color: #fff;
    padding: 12px 14px;
    font-family: var(--font-body);
    font-size: 14px;
}
.contact-form textarea { min-height: 140px; resize: vertical; }
.form-note {
    margin-top: 14px;
    color: var(--text-muted);
    font-size: 13px;
}
.fact-list {
    list-style: none;
    padding: 0;
    margin: 18px 0 0;
    display: grid;
    gap: 10px;
}
.fact-list li {
    display: flex;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 14px;
}
.fact-list li::before {
    content: '+';
    color: var(--titanium-blue);
    font-family: var(--font-display);
}
.stat-band {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}
.stat-band .metric-note {
    margin-top: 12px;
}
.logo-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.logo-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 12px;
    border: 1px solid rgba(255,255,255,0.08);
    background: rgba(255,255,255,0.02);
    color: var(--text-secondary);
    font-size: 12px;
    letter-spacing: 0.8px;
    text-transform: uppercase;
}
.inline-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 16px 0 0;
}
input:focus-visible, textarea:focus-visible, select:focus-visible {
    outline: 2px solid var(--titanium-blue);
    outline-offset: 2px;
}
@media screen and (max-width: 1320px) {
    .trust-strip,
    .stat-band { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media screen and (max-width: 980px) {
    .preview-grid,
    .form-row,
    .trust-strip,
    .stat-band { grid-template-columns: 1fr; }
}


/* Launch completion */
.faq-list {
    display: grid;
    gap: 18px;
}
.faq-item {
    border: 1px solid var(--border-glow);
    background: rgba(0,0,0,0.56);
    backdrop-filter: blur(8px);
}
.faq-item summary {
    list-style: none;
    cursor: pointer;
    padding: 24px 26px;
    font-family: var(--font-display);
    color: #ffffff;
    font-size: 16px;
    letter-spacing: 0.6px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+';
    color: var(--titanium-blue);
    font-size: 24px;
    line-height: 1;
}
.faq-item[open] summary::after { content: '-'; }
.faq-item .faq-answer {
    padding: 0 26px 24px;
    color: var(--text-secondary);
    font-size: 15px;
}
.faq-item .faq-answer p { margin: 0 0 12px; }
.faq-item .faq-answer p:last-child { margin-bottom: 0; }
.stage-grid,
.deliverable-grid,
.sitemap-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}
.checklist-card {
    padding: 30px;
    border: 1px solid var(--border-glow);
    background: rgba(0,0,0,0.52);
    backdrop-filter: blur(6px);
}
.checklist-card h3 {
    margin: 0 0 14px;
    color: var(--titanium-blue);
    font-family: var(--font-display);
    font-size: 20px;
}
.checklist-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 15px;
}
.checklist-card ul {
    margin: 18px 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 10px;
}
.checklist-card li {
    color: var(--text-secondary);
    font-size: 14px;
    display: flex;
    gap: 10px;
    line-height: 1.65;
}
.checklist-card li::before {
    content: '+';
    color: var(--titanium-blue);
    font-family: var(--font-display);
}
.sitemap-card {
    padding: 30px;
    border: 1px solid var(--border-glow);
    background: rgba(0,0,0,0.52);
    backdrop-filter: blur(6px);
}
.sitemap-card h3 {
    margin: 0 0 14px;
    color: var(--titanium-blue);
    font-family: var(--font-display);
    font-size: 20px;
}
.sitemap-card p {
    margin: 0 0 16px;
    color: var(--text-secondary);
    font-size: 15px;
}
.sitemap-card .footer-links {
    gap: 12px;
}
.form-status {
    margin-top: 14px;
    padding: 12px 14px;
    border: 1px solid var(--border-glow);
    background: rgba(0,247,255,0.06);
    color: var(--text-secondary);
    font-size: 13px;
    display: none;
}
.form-status.visible { display: block; }
.note-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}
.note-chip {
    display: inline-flex;
    align-items: center;
    padding: 7px 12px;
    border: 1px solid var(--border-glow);
    background: rgba(255,255,255,0.02);
    color: var(--text-secondary);
    font-size: 12px;
    letter-spacing: 0.8px;
    text-transform: uppercase;
}
.schema-note {
    margin-top: 12px;
    color: var(--text-muted);
    font-size: 12px;
}
@media screen and (max-width: 980px) {
    .stage-grid,
    .deliverable-grid,
    .sitemap-grid { grid-template-columns: 1fr; }
    .faq-item summary,
    .faq-item .faq-answer,
    .checklist-card,
    .sitemap-card { padding-left: 20px; padding-right: 20px; }
}