/* ============================================================================
   m19 · Aerospace Blueprint —— 航空蓝图 / 工程图风格
   bg #0c2547 deep blueprint blue · card #103466 · ink #cce4ff
   accent cyan grid #00d4ff · accent crimson #dc2626
   Display: Major Mono Display (technical caps mono)
   Body: Saira (modern technical sans)
   ========================================================================== */

:root {
    --m19-bg: #0c2547;
    --m19-bg-2: #0a1f3d;
    --m19-bg-3: #07172e;
    --m19-card: #103466;
    --m19-card-2: #0e2c57;
    --m19-line: rgba(0, 212, 255, 0.22);
    --m19-line-strong: rgba(0, 212, 255, 0.45);
    --m19-line-soft: rgba(204, 228, 255, 0.12);
    --m19-grid: rgba(0, 212, 255, 0.07);
    --m19-grid-strong: rgba(0, 212, 255, 0.13);
    --m19-ink: #cce4ff;
    --m19-ink-2: #91b3da;
    --m19-ink-3: #6b8aaa;
    --m19-cyan: #00d4ff;
    --m19-cyan-2: #5be3ff;
    --m19-crimson: #dc2626;
    --m19-crimson-2: #ef4444;
    --m19-amber: #f59e0b;
    --m19-mono: 'Major Mono Display', 'Courier New', monospace;
    --m19-sans: 'Saira', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --m19-shell: 1280px;
    --m19-r: 2px;
    --m19-r-md: 4px;
}

/* ───────── Base reset ───────── */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body.m19-body {
    font-family: var(--m19-sans);
    color: var(--m19-ink);
    background: var(--m19-bg);
    font-size: 14px;
    line-height: 1.65;
    font-weight: 400;
    letter-spacing: 0.01em;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--m19-cyan); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--m19-cyan-2); }
ul, ol, dl, dt, dd, p, h1, h2, h3, h4, h5, h6 { margin: 0; padding: 0; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }

.seo-h1 {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ───────── Blueprint dot grid background ───────── */

.m19-grid-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-color: var(--m19-bg);
    background-image:
        radial-gradient(circle, var(--m19-grid-strong) 1px, transparent 1px),
        linear-gradient(var(--m19-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--m19-grid) 1px, transparent 1px);
    background-size: 40px 40px, 40px 40px, 40px 40px;
    background-position: 0 0, 0 0, 0 0;
}
.m19-grid-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 0%, rgba(0, 212, 255, 0.08), transparent 60%),
        radial-gradient(ellipse at 80% 100%, rgba(220, 38, 38, 0.05), transparent 60%);
}

.m19-mast,
.m19-main,
.m19-footer { position: relative; z-index: 1; }

/* ───────── Shell ───────── */

.m19-shell {
    width: 100%;
    max-width: var(--m19-shell);
    margin: 0 auto;
    padding: 0 32px;
    position: relative;
}
.m19-shell-narrow { max-width: 920px; }

/* ───────── Header / Mast ───────── */

.m19-mast {
    border-bottom: 1px solid var(--m19-line);
    background: linear-gradient(180deg, var(--m19-bg-3) 0%, var(--m19-bg) 100%);
    position: relative;
}
.m19-mast::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: -1px;
    height: 1px;
    background: repeating-linear-gradient(90deg, var(--m19-cyan) 0 6px, transparent 6px 12px);
    opacity: 0.5;
}

/* trust strip */
.m19-trust {
    border-bottom: 1px dashed var(--m19-line);
    background: var(--m19-bg-3);
    font-family: var(--m19-mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--m19-ink-2);
}
.m19-trust-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 8px 0;
    flex-wrap: wrap;
}
.m19-trust-stamp {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--m19-cyan);
}
.m19-trust-stamp .dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--m19-cyan);
    box-shadow: 0 0 8px var(--m19-cyan);
    animation: m19-pulse 2.4s ease-in-out infinite;
}
@keyframes m19-pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}
.m19-trust-meta { display: inline-flex; gap: 10px; flex-wrap: wrap; }
.m19-trust-pill {
    display: inline-block;
    padding: 2px 8px;
    border: 1px dashed var(--m19-line-strong);
    color: var(--m19-ink-2);
    font-family: var(--m19-mono);
    font-size: 10px;
    letter-spacing: 0.08em;
}
.m19-trust-pill.verified {
    color: var(--m19-cyan);
    border-color: var(--m19-cyan);
    border-style: solid;
}
.m19-trust-links { display: inline-flex; gap: 8px; align-items: center; }
.m19-trust-links a { color: var(--m19-ink-2); }
.m19-trust-links a:hover { color: var(--m19-cyan); }
.m19-trust-links .sep { color: var(--m19-line-strong); }

/* title block */
.m19-titleblock {
    border-bottom: 1px solid var(--m19-line);
    padding: 24px 0;
}
.m19-titleblock-row {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 32px;
    align-items: center;
}

.m19-brand {
    display: inline-flex;
    align-items: center;
    gap: 18px;
    color: var(--m19-ink);
}
.m19-brand-logo-frame {
    position: relative;
    width: 64px;
    height: 64px;
    padding: 6px;
    border: 1px dashed var(--m19-line-strong);
    flex-shrink: 0;
}
.m19-brand-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: rgba(255, 255, 255, 0.04);
}
.m19-brand-tick {
    position: absolute;
    width: 8px; height: 8px;
    border: 1px solid var(--m19-cyan);
}
.m19-brand-tick-tl { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.m19-brand-tick-tr { top: -1px; right: -1px; border-left: none; border-bottom: none; }
.m19-brand-tick-bl { bottom: -1px; left: -1px; border-right: none; border-top: none; }
.m19-brand-tick-br { bottom: -1px; right: -1px; border-left: none; border-top: none; }

.m19-brand-text {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}
.m19-brand-code {
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-cyan);
    letter-spacing: 0.18em;
    text-transform: uppercase;
}
.m19-brand-name {
    font-family: var(--m19-mono);
    font-size: 22px;
    font-weight: 400;
    color: var(--m19-ink);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    line-height: 1.1;
}
.m19-brand-scope {
    font-size: 12px;
    color: var(--m19-ink-2);
    letter-spacing: 0.04em;
}

/* meta cells like a drafting title block */
.m19-titleblock-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border: 1px solid var(--m19-line-strong);
    background: var(--m19-card);
}
.m19-meta-cell {
    padding: 8px 14px;
    border-right: 1px solid var(--m19-line);
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 80px;
}
.m19-meta-cell:last-child { border-right: none; }
.m19-meta-cell .lab {
    font-family: var(--m19-mono);
    font-size: 9px;
    color: var(--m19-ink-3);
    letter-spacing: 0.18em;
    text-transform: uppercase;
}
.m19-meta-cell .val {
    font-family: var(--m19-mono);
    font-size: 14px;
    color: var(--m19-cyan);
    letter-spacing: 0.06em;
}

.m19-mast-cta {
    position: relative;
    display: inline-flex;
    flex-direction: column;
    gap: 2px;
    padding: 10px 18px 10px 22px;
    border: 1px solid var(--m19-cyan);
    background: rgba(0, 212, 255, 0.06);
    color: var(--m19-ink);
    text-decoration: none;
    transition: background .2s ease, border-color .2s ease;
}
.m19-mast-cta:hover {
    background: rgba(0, 212, 255, 0.12);
    color: var(--m19-cyan-2);
}
.m19-mast-cta .lab {
    font-family: var(--m19-mono);
    font-size: 9px;
    color: var(--m19-cyan);
    letter-spacing: 0.18em;
    text-transform: uppercase;
}
.m19-mast-cta strong {
    font-family: var(--m19-mono);
    font-size: 18px;
    font-weight: 400;
    color: var(--m19-ink);
    letter-spacing: 0.06em;
}
.m19-mast-cta-pointer {
    position: absolute;
    left: -22px;
    top: 50%;
    transform: translateY(-50%);
    width: 22px;
    height: 10px;
}
.m19-mast-cta-pointer .line {
    position: absolute;
    left: 0; top: 50%;
    width: 100%; height: 1px;
    background: repeating-linear-gradient(90deg, var(--m19-cyan) 0 4px, transparent 4px 8px);
}
.m19-mast-cta-pointer .dot {
    position: absolute;
    left: -3px; top: 50%;
    width: 6px; height: 6px;
    margin-top: -3px;
    border: 1px solid var(--m19-cyan);
    border-radius: 50%;
}

/* nav */
.m19-nav {
    background: var(--m19-bg-3);
    border-top: 1px solid var(--m19-line);
}
.m19-nav-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
}
.m19-nav-inner a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 22px;
    color: var(--m19-ink-2);
    font-family: var(--m19-sans);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.04em;
    border-right: 1px dashed var(--m19-line);
    transition: color .2s ease, background .2s ease;
    position: relative;
}
.m19-nav-inner a:first-child { border-left: 1px dashed var(--m19-line); }
.m19-nav-inner a .num {
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-cyan);
    letter-spacing: 0.12em;
}
.m19-nav-inner a .lbl { letter-spacing: 0.04em; }
.m19-nav-inner a:hover {
    color: var(--m19-cyan);
    background: rgba(0, 212, 255, 0.05);
}
.m19-nav-inner a.is-active {
    color: var(--m19-ink);
    background: var(--m19-card);
}
.m19-nav-inner a.is-active::before {
    content: '';
    position: absolute;
    left: 0; right: 0; top: 0;
    height: 2px;
    background: var(--m19-cyan);
}
.m19-nav-inner a.is-active::after {
    content: '';
    position: absolute;
    left: 50%; bottom: -1px;
    transform: translateX(-50%);
    width: 8px; height: 8px;
    background: var(--m19-cyan);
    border: 1px solid var(--m19-bg-3);
    border-radius: 50%;
}

/* ───────── Main wrapper ───────── */

.m19-main {
    min-height: 60vh;
}
.m19-section {
    padding: 56px 0;
    position: relative;
}
.m19-section-tight {
    padding: 24px 0 0;
}

/* section header */
.m19-section-h {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 14px;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--m19-line);
    position: relative;
}
.m19-section-h::after {
    content: '';
    position: absolute;
    left: 0; bottom: -3px;
    width: 60px;
    height: 3px;
    background: var(--m19-cyan);
}
.m19-section-h-left {
    display: flex;
    align-items: baseline;
    gap: 14px;
    flex-wrap: wrap;
}
.m19-section-h-left .num {
    font-family: var(--m19-mono);
    font-size: 12px;
    color: var(--m19-cyan);
    letter-spacing: 0.16em;
}
.m19-section-h h2 {
    font-family: var(--m19-mono);
    font-weight: 400;
    font-size: 22px;
    color: var(--m19-ink);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.m19-section-h h2 small {
    font-family: var(--m19-mono);
    font-weight: 400;
    font-size: 11px;
    color: var(--m19-ink-3);
    letter-spacing: 0.14em;
    margin-left: 8px;
}
.m19-section-more {
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-cyan);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    border-bottom: 1px dashed var(--m19-cyan);
    padding-bottom: 2px;
}
.m19-section-more:hover { color: var(--m19-cyan-2); border-bottom-style: solid; }

/* ───────── Frame corners (drafting registration ticks) ───────── */

.m19-frame-corner {
    position: absolute;
    width: 14px;
    height: 14px;
    border: 1px solid var(--m19-cyan);
    pointer-events: none;
    z-index: 2;
}
.m19-frame-corner.tl { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.m19-frame-corner.tr { top: -1px; right: -1px; border-left: none; border-bottom: none; }
.m19-frame-corner.bl { bottom: -1px; left: -1px; border-right: none; border-top: none; }
.m19-frame-corner.br { bottom: -1px; right: -1px; border-left: none; border-top: none; }

.m19-feat-corner {
    position: absolute;
    width: 8px;
    height: 8px;
    border: 1px solid var(--m19-cyan);
    pointer-events: none;
    z-index: 2;
}
.m19-feat-corner.tl { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.m19-feat-corner.tr { top: -1px; right: -1px; border-left: none; border-bottom: none; }
.m19-feat-corner.bl { bottom: -1px; left: -1px; border-right: none; border-top: none; }
.m19-feat-corner.br { bottom: -1px; right: -1px; border-left: none; border-top: none; }

/* ───────── HERO ───────── */

.m19-hero {
    padding: 40px 0 24px;
}
.m19-hero-frame {
    position: relative;
    background: var(--m19-card);
    border: 1px dashed var(--m19-line-strong);
    padding: 40px;
}
.m19-hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 48px;
    align-items: center;
}
.m19-hero-info { min-width: 0; }
.m19-hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-cyan);
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.m19-hero-tag .bar {
    width: 28px; height: 2px;
    background: var(--m19-cyan);
}
.m19-hero-h2 {
    font-family: var(--m19-mono);
    font-weight: 400;
    color: var(--m19-ink);
    margin-bottom: 18px;
    line-height: 1.15;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.m19-hero-h2 .line {
    display: block;
    font-size: 38px;
}
.m19-hero-h2-sub {
    display: block;
    font-size: 14px;
    color: var(--m19-cyan);
    margin-top: 10px;
    letter-spacing: 0.12em;
}
.m19-hero-lead {
    font-size: 14px;
    color: var(--m19-ink-2);
    line-height: 1.85;
    margin-bottom: 22px;
    border-left: 1px dashed var(--m19-line-strong);
    padding-left: 14px;
}

.m19-hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border: 1px solid var(--m19-line-strong);
    margin-bottom: 24px;
}
.m19-stat-cell {
    padding: 12px 14px;
    border-right: 1px dashed var(--m19-line);
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.m19-stat-cell:last-child { border-right: none; }
.m19-stat-num {
    font-family: var(--m19-mono);
    font-size: 22px;
    font-weight: 400;
    color: var(--m19-ink);
    letter-spacing: 0.04em;
    line-height: 1;
}
.m19-stat-num small {
    font-size: 10px;
    color: var(--m19-cyan);
    margin-left: 4px;
    letter-spacing: 0.14em;
}
.m19-stat-num.is-on { color: var(--m19-cyan); }
.m19-stat-lab {
    font-family: var(--m19-mono);
    font-size: 9px;
    color: var(--m19-ink-3);
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.m19-hero-cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* hero blueprint art side */
.m19-hero-blueprint {
    position: relative;
    aspect-ratio: 4 / 3;
    min-height: 320px;
}
.m19-hero-img-wrap {
    position: relative;
    width: 100%; height: 100%;
    border: 1px dashed var(--m19-line-strong);
    background:
        linear-gradient(var(--m19-grid) 1px, transparent 1px) 0 0 / 24px 24px,
        linear-gradient(90deg, var(--m19-grid) 1px, transparent 1px) 0 0 / 24px 24px,
        var(--m19-bg-3);
    overflow: hidden;
}
.m19-hero-img-wrap::before,
.m19-hero-img-wrap::after {
    content: '';
    position: absolute;
    background: var(--m19-cyan);
    opacity: 0.4;
    z-index: 2;
}
.m19-hero-img-wrap::before {
    left: 50%; top: 0; bottom: 0;
    width: 1px;
    background: repeating-linear-gradient(180deg, var(--m19-cyan) 0 4px, transparent 4px 8px);
}
.m19-hero-img-wrap::after {
    left: 0; right: 0; top: 50%;
    height: 1px;
    background: repeating-linear-gradient(90deg, var(--m19-cyan) 0 4px, transparent 4px 8px);
}
.m19-hero-img {
    width: 100%; height: 100%;
    object-fit: contain;
    padding: 16%;
    filter: drop-shadow(0 0 24px rgba(0, 212, 255, 0.18));
    position: relative;
    z-index: 1;
    mix-blend-mode: screen;
}
.m19-hero-img-fallback {
    width: 100%; height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--m19-mono);
    font-size: 22px;
    color: var(--m19-cyan);
    letter-spacing: 0.08em;
    padding: 24px;
    text-align: center;
}

/* callouts */
.m19-callout {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 6px;
    z-index: 3;
    pointer-events: none;
}
.m19-callout-1 { top: 14%; right: 8%; }
.m19-callout-2 { bottom: 18%; left: 6%; }
.m19-callout-marker {
    width: 22px; height: 22px;
    border: 1.5px solid var(--m19-cyan);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-cyan);
    background: var(--m19-bg-3);
    flex-shrink: 0;
}
.m19-callout-marker.abs {
    position: absolute;
    top: 12px; left: 12px;
    z-index: 3;
}
.m19-callout-leader {
    width: 28px; height: 1px;
    background: repeating-linear-gradient(90deg, var(--m19-cyan) 0 3px, transparent 3px 6px);
}
.m19-callout-text {
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-cyan);
    background: var(--m19-bg-3);
    padding: 4px 8px;
    border: 1px solid var(--m19-line-strong);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
}

/* dimension line */
.m19-dim {
    position: absolute;
    z-index: 3;
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 4px;
}
.m19-dim-h {
    bottom: 8px;
    left: 12%;
    right: 12%;
}
.dim-tick {
    width: 1px;
    height: 14px;
    background: var(--m19-cyan);
    flex-shrink: 0;
}
.dim-line {
    flex: 1;
    height: 1px;
    background: var(--m19-cyan);
    position: relative;
}
.dim-num {
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-cyan);
    background: var(--m19-card);
    padding: 1px 6px;
    letter-spacing: 0.1em;
    border: 1px solid var(--m19-line);
}

/* hero titleblock bottom strip */
.m19-hero-titleblock {
    margin-top: 32px;
    border-top: 1px solid var(--m19-line);
    border-bottom: 1px solid var(--m19-line);
    display: grid;
    grid-template-columns: repeat(4, 1fr) 2fr;
    gap: 0;
}
.m19-hero-titleblock .cell {
    padding: 10px 14px;
    border-right: 1px dashed var(--m19-line);
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}
.m19-hero-titleblock .cell:last-child { border-right: none; }
.m19-hero-titleblock .lab {
    font-family: var(--m19-mono);
    font-size: 9px;
    color: var(--m19-ink-3);
    letter-spacing: 0.18em;
    text-transform: uppercase;
}
.m19-hero-titleblock .val {
    font-family: var(--m19-mono);
    font-size: 12px;
    color: var(--m19-cyan);
    letter-spacing: 0.06em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ───────── Buttons ───────── */

.m19-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    font-family: var(--m19-sans);
    font-weight: 500;
    font-size: 13px;
    letter-spacing: 0.06em;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
    position: relative;
    text-transform: uppercase;
    white-space: nowrap;
}
.m19-btn span { display: inline-block; transition: transform .2s ease; }
.m19-btn:hover span { transform: translateX(2px); }

.m19-btn-primary {
    background: var(--m19-cyan);
    color: var(--m19-bg);
    border-color: var(--m19-cyan);
}
.m19-btn-primary:hover {
    background: var(--m19-cyan-2);
    color: var(--m19-bg);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.18);
}

.m19-btn-outline {
    background: transparent;
    color: var(--m19-cyan);
    border-color: var(--m19-cyan);
}
.m19-btn-outline:hover {
    background: rgba(0, 212, 255, 0.08);
    color: var(--m19-cyan-2);
}

.m19-btn-ghost {
    background: transparent;
    color: var(--m19-ink-2);
    border: 1px dashed var(--m19-line-strong);
}
.m19-btn-ghost:hover {
    color: var(--m19-cyan);
    border-color: var(--m19-cyan);
    border-style: solid;
}

.m19-btn-danger {
    background: var(--m19-crimson);
    color: #fff;
    border-color: var(--m19-crimson);
}
.m19-btn-danger:hover { background: var(--m19-crimson-2); }

.m19-btn-sm { padding: 6px 12px; font-size: 11px; }
.m19-btn-lg { padding: 14px 26px; font-size: 14px; }
.m19-btn-block { display: flex; width: 100%; justify-content: center; }

/* ───────── Pills ───────── */

.m19-pills-bar {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    flex-wrap: wrap;
    padding: 20px 0;
    border-top: 1px dashed var(--m19-line);
    border-bottom: 1px dashed var(--m19-line);
}
.m19-pills-lab {
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-cyan);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    padding-top: 6px;
}
.m19-pills-list {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    flex: 1;
}
.m19-pill {
    display: inline-block;
    padding: 6px 12px;
    border: 1px dashed var(--m19-line-strong);
    color: var(--m19-ink-2);
    font-family: var(--m19-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    transition: all .2s ease;
}
.m19-pill:hover {
    border-color: var(--m19-cyan);
    color: var(--m19-cyan);
}
.m19-pill.is-active {
    background: var(--m19-cyan);
    color: var(--m19-bg);
    border-color: var(--m19-cyan);
    border-style: solid;
}

/* ───────── Featured product cards (m19-feat) ───────── */

.m19-feat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.m19-feat-card {
    position: relative;
    background: var(--m19-card);
    border: 1px solid var(--m19-line-strong);
    display: flex;
    flex-direction: column;
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.m19-feat-card:hover {
    border-color: var(--m19-cyan);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px -16px rgba(0, 212, 255, 0.4);
}
.m19-feat-img {
    position: relative;
    display: block;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background:
        linear-gradient(var(--m19-grid) 1px, transparent 1px) 0 0 / 16px 16px,
        linear-gradient(90deg, var(--m19-grid) 1px, transparent 1px) 0 0 / 16px 16px,
        var(--m19-bg-3);
    border-bottom: 1px dashed var(--m19-line);
}
.m19-feat-img img {
    width: 100%; height: 100%;
    object-fit: contain;
    padding: 12%;
    transition: transform .3s ease;
}
.m19-feat-card:hover .m19-feat-img img { transform: scale(1.05); }
.m19-feat-id {
    position: absolute;
    top: 10px; left: 10px;
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-cyan);
    background: var(--m19-bg-3);
    border: 1px solid var(--m19-line-strong);
    padding: 2px 6px;
    letter-spacing: 0.08em;
    z-index: 2;
}
.m19-feat-flag {
    position: absolute;
    top: 10px; right: 10px;
    font-family: var(--m19-mono);
    font-size: 10px;
    color: #fff;
    background: var(--m19-crimson);
    padding: 2px 8px;
    letter-spacing: 0.1em;
    z-index: 2;
    border: 1px solid var(--m19-crimson);
}

.m19-feat-body {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
}
.m19-feat-title {
    font-family: var(--m19-sans);
    font-weight: 500;
    color: var(--m19-ink);
    font-size: 14px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.8em;
}
.m19-feat-title:hover { color: var(--m19-cyan); }

.m19-feat-spec {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 4px 10px;
    border-top: 1px dashed var(--m19-line);
    border-bottom: 1px dashed var(--m19-line);
    padding: 8px 0;
    font-family: var(--m19-mono);
    font-size: 10px;
}
.m19-feat-spec dt {
    color: var(--m19-ink-3);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.m19-feat-spec dd {
    color: var(--m19-cyan);
    letter-spacing: 0.04em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.m19-feat-price {
    display: flex;
    align-items: baseline;
    gap: 4px;
    font-family: var(--m19-mono);
}
.m19-feat-price .cur {
    font-size: 14px;
    color: var(--m19-crimson);
}
.m19-feat-price .amt {
    font-size: 22px;
    color: var(--m19-crimson);
    letter-spacing: 0.02em;
}
.m19-feat-price small {
    font-size: 11px;
    color: var(--m19-ink-3);
    letter-spacing: 0.08em;
}
.m19-feat-price .muted {
    color: var(--m19-ink-3);
    font-size: 13px;
    letter-spacing: 0.1em;
}

.m19-feat-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ───────── Dense grid ───────── */

.m19-dense-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}
.m19-dense-card {
    position: relative;
    background: var(--m19-card-2);
    border: 1px solid var(--m19-line);
    display: flex;
    flex-direction: column;
    transition: border-color .2s ease, transform .2s ease;
}
.m19-dense-card:hover {
    border-color: var(--m19-cyan);
    transform: translateY(-2px);
}
.m19-dense-img {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background:
        linear-gradient(var(--m19-grid) 1px, transparent 1px) 0 0 / 12px 12px,
        linear-gradient(90deg, var(--m19-grid) 1px, transparent 1px) 0 0 / 12px 12px,
        var(--m19-bg-3);
    border-bottom: 1px dashed var(--m19-line);
}
.m19-dense-img img {
    width: 100%; height: 100%;
    object-fit: contain;
    padding: 10%;
}
.m19-dense-id {
    position: absolute;
    top: 6px; left: 6px;
    font-family: var(--m19-mono);
    font-size: 9px;
    color: var(--m19-cyan);
    background: var(--m19-bg-3);
    padding: 1px 5px;
    letter-spacing: 0.08em;
    border: 1px solid var(--m19-line);
}
.m19-dense-body {
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.m19-dense-title {
    font-family: var(--m19-sans);
    color: var(--m19-ink);
    font-size: 12px;
    line-height: 1.4;
    font-weight: 500;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.8em;
}
.m19-dense-meta {
    font-family: var(--m19-mono);
    font-size: 9px;
    color: var(--m19-ink-3);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.m19-dense-price {
    font-family: var(--m19-mono);
    font-size: 14px;
    color: var(--m19-crimson);
    letter-spacing: 0.04em;
}
.m19-dense-price .muted { color: var(--m19-ink-3); font-size: 12px; }

/* ───────── About card on home ───────── */

.m19-about-card {
    position: relative;
    background: var(--m19-card);
    border: 1px dashed var(--m19-line-strong);
    padding: 36px;
}
.m19-about-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 32px;
    align-items: start;
}
.m19-about-spec dl {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px 14px;
    font-family: var(--m19-mono);
    font-size: 12px;
    border: 1px solid var(--m19-line);
    padding: 16px;
    background: var(--m19-bg-3);
}
.m19-about-spec dt {
    color: var(--m19-ink-3);
    letter-spacing: 0.14em;
    text-transform: uppercase;
}
.m19-about-spec dd {
    color: var(--m19-cyan);
    letter-spacing: 0.06em;
}
.m19-stat-on { color: var(--m19-cyan) !important; }

/* ───────── Prose ───────── */

.m19-prose {
    font-family: var(--m19-sans);
    color: var(--m19-ink);
    font-size: 14px;
    line-height: 1.85;
}
.m19-prose p { margin: 0 0 14px; color: var(--m19-ink-2); }
.m19-prose strong { color: var(--m19-ink); font-weight: 700; }
.m19-prose a { color: var(--m19-cyan); border-bottom: 1px dashed currentColor; }
.m19-prose h1, .m19-prose h2, .m19-prose h3, .m19-prose h4 {
    font-family: var(--m19-mono);
    color: var(--m19-ink);
    margin: 24px 0 12px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.m19-prose h2 { font-size: 18px; }
.m19-prose h3 { font-size: 16px; }
.m19-prose ul, .m19-prose ol { margin: 0 0 14px 22px; color: var(--m19-ink-2); }
.m19-prose ul { list-style: square; }
.m19-prose ol { list-style: decimal; }
.m19-prose li { margin-bottom: 6px; }
.m19-prose img { max-width: 100%; height: auto; margin: 14px 0; border: 1px dashed var(--m19-line-strong); }
.m19-prose blockquote {
    border-left: 2px solid var(--m19-cyan);
    padding: 4px 14px;
    color: var(--m19-ink-2);
    margin: 14px 0;
    font-style: italic;
}
.m19-prose code {
    font-family: var(--m19-mono);
    background: var(--m19-bg-3);
    padding: 2px 6px;
    color: var(--m19-cyan);
    font-size: 12px;
}
.m19-prose table {
    width: 100%;
    border-collapse: collapse;
    margin: 14px 0;
    font-size: 13px;
}
.m19-prose th, .m19-prose td {
    border: 1px solid var(--m19-line);
    padding: 8px 12px;
    text-align: left;
}
.m19-prose th {
    background: var(--m19-bg-3);
    color: var(--m19-cyan);
    font-family: var(--m19-mono);
    font-weight: 400;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

/* ───────── CTA Strip ───────── */

.m19-cta-strip {
    position: relative;
    border: 1px dashed var(--m19-cyan);
    background:
        linear-gradient(var(--m19-grid) 1px, transparent 1px) 0 0 / 32px 32px,
        linear-gradient(90deg, var(--m19-grid) 1px, transparent 1px) 0 0 / 32px 32px,
        var(--m19-card);
    padding: 28px 32px;
}
.m19-cta-strip-inner {
    display: grid;
    grid-template-columns: 1.4fr auto auto;
    gap: 28px;
    align-items: center;
}
.m19-cta-strip-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.m19-cta-strip-tag {
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-cyan);
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.m19-cta-strip-text strong {
    font-family: var(--m19-mono);
    font-size: 18px;
    color: var(--m19-ink);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    font-weight: 400;
}
.m19-cta-strip-text small {
    font-size: 12px;
    color: var(--m19-ink-2);
    letter-spacing: 0.06em;
}

.m19-cta-strip-tel {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 8px 16px;
    border-left: 1px dashed var(--m19-line-strong);
    border-right: 1px dashed var(--m19-line-strong);
}
.m19-cta-strip-tel .lab {
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-cyan);
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.m19-cta-strip-tel strong {
    font-family: var(--m19-mono);
    font-size: 22px;
    color: var(--m19-ink);
    letter-spacing: 0.04em;
    font-weight: 400;
}

.m19-cta-strip-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* ───────── Crumb ───────── */

.m19-crumb-sec {
    padding: 18px 0;
    border-bottom: 1px dashed var(--m19-line);
    background: var(--m19-bg-3);
}
.m19-crumb {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-ink-2);
    letter-spacing: 0.08em;
}
.m19-crumb-tag {
    color: var(--m19-cyan);
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.m19-crumb a {
    color: var(--m19-ink-2);
    border-bottom: 1px dashed transparent;
}
.m19-crumb a:hover {
    color: var(--m19-cyan);
    border-bottom-color: var(--m19-cyan);
}
.m19-crumb .sep { color: var(--m19-ink-3); }
.m19-crumb .current { color: var(--m19-cyan); }

/* ───────── Supply layout ───────── */

.m19-supply-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 28px;
    align-items: start;
}
.m19-side {
    display: flex;
    flex-direction: column;
    gap: 18px;
    position: sticky;
    top: 16px;
}
.m19-side-card {
    position: relative;
    background: var(--m19-card);
    border: 1px solid var(--m19-line-strong);
    padding: 20px 18px;
}
.m19-side-card h3 {
    font-family: var(--m19-mono);
    font-weight: 400;
    font-size: 13px;
    color: var(--m19-cyan);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding-bottom: 10px;
    margin-bottom: 12px;
    border-bottom: 1px dashed var(--m19-line);
}
.m19-side-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    max-height: 480px;
    overflow-y: auto;
}
.m19-side-list a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    color: var(--m19-ink-2);
    font-family: var(--m19-sans);
    font-size: 13px;
    border: 1px dashed transparent;
    transition: all .2s ease;
}
.m19-side-list a .num {
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-ink-3);
    letter-spacing: 0.1em;
    flex-shrink: 0;
}
.m19-side-list a:hover {
    color: var(--m19-cyan);
    border-color: var(--m19-line);
}
.m19-side-list a:hover .num { color: var(--m19-cyan); }
.m19-side-list a.is-active {
    background: var(--m19-bg-3);
    color: var(--m19-cyan);
    border: 1px solid var(--m19-cyan);
}
.m19-side-list a.is-active .num { color: var(--m19-cyan); }

.m19-side-cta {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.m19-side-cta-note {
    font-size: 12px;
    color: var(--m19-ink-2);
    line-height: 1.6;
}
.m19-side-tel {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 12px;
    background: var(--m19-bg-3);
    border: 1px dashed var(--m19-cyan);
}
.m19-side-tel .lab {
    font-family: var(--m19-mono);
    font-size: 9px;
    color: var(--m19-cyan);
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.m19-side-tel strong {
    font-family: var(--m19-mono);
    font-size: 18px;
    color: var(--m19-ink);
    letter-spacing: 0.04em;
    font-weight: 400;
}

.m19-supply-main { min-width: 0; }

/* ───────── Empty / Pager ───────── */

.m19-empty {
    text-align: center;
    padding: 60px 24px;
    border: 1px dashed var(--m19-line);
    background: var(--m19-card);
}
.m19-empty-tag {
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-cyan);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 10px;
    border: 1px solid var(--m19-cyan);
    padding: 4px 12px;
}
.m19-empty p { color: var(--m19-ink-2); font-size: 14px; }

.m19-pager {
    margin-top: 36px;
    display: flex;
    justify-content: center;
}
.m19-pager .pagination,
.m19-pager ul,
.m19-pager ol {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 6px;
    list-style: none;
}
.m19-pager li > a,
.m19-pager li > span,
.m19-pager a,
.m19-pager span.current {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    padding: 6px 12px;
    border: 1px dashed var(--m19-line-strong);
    color: var(--m19-ink-2);
    font-family: var(--m19-mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    transition: all .2s ease;
}
.m19-pager a:hover {
    border-color: var(--m19-cyan);
    border-style: solid;
    color: var(--m19-cyan);
}
.m19-pager .current,
.m19-pager .active a,
.m19-pager .active span {
    background: var(--m19-cyan);
    color: var(--m19-bg);
    border-color: var(--m19-cyan);
    border-style: solid;
}
.m19-pager .disabled a,
.m19-pager .disabled span {
    color: var(--m19-ink-3);
    opacity: 0.5;
    border-style: dashed;
}

/* ───────── Product detail ───────── */

.m19-prod-frame {
    position: relative;
    background: var(--m19-card);
    border: 1px dashed var(--m19-line-strong);
    padding: 36px;
}
.m19-prod-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
}
.m19-prod-img-side {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.m19-prod-img-frame {
    position: relative;
    aspect-ratio: 1;
    background:
        linear-gradient(var(--m19-grid) 1px, transparent 1px) 0 0 / 24px 24px,
        linear-gradient(90deg, var(--m19-grid) 1px, transparent 1px) 0 0 / 24px 24px,
        var(--m19-bg-3);
    border: 1px dashed var(--m19-line-strong);
    overflow: hidden;
}
.m19-prod-img-frame::before {
    content: '';
    position: absolute;
    left: 50%; top: 0; bottom: 0;
    width: 1px;
    background: repeating-linear-gradient(180deg, var(--m19-line-strong) 0 4px, transparent 4px 8px);
}
.m19-prod-img-frame::after {
    content: '';
    position: absolute;
    left: 0; right: 0; top: 50%;
    height: 1px;
    background: repeating-linear-gradient(90deg, var(--m19-line-strong) 0 4px, transparent 4px 8px);
}
.m19-prod-img-frame img {
    width: 100%; height: 100%;
    object-fit: contain;
    padding: 14%;
    position: relative;
    z-index: 1;
}
.m19-prod-img-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-ink-2);
    letter-spacing: 0.08em;
}
.m19-prod-img-meta .lab { color: var(--m19-cyan); letter-spacing: 0.14em; text-transform: uppercase; }
.m19-prod-img-meta .val { color: var(--m19-ink); }
.m19-prod-img-meta .sep { color: var(--m19-ink-3); }

.m19-prod-info { min-width: 0; }
.m19-prod-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-cyan);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 14px;
}
.m19-prod-tag .bar { width: 28px; height: 2px; background: var(--m19-cyan); }
.m19-prod-h1 {
    font-family: var(--m19-sans);
    font-size: 24px;
    font-weight: 700;
    color: var(--m19-ink);
    line-height: 1.35;
    margin-bottom: 18px;
    letter-spacing: 0.01em;
}

.m19-prod-price-box {
    background: var(--m19-bg-3);
    border: 1px dashed var(--m19-crimson);
    padding: 18px;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.m19-prod-price-box .lab {
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-crimson);
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.m19-prod-price {
    display: flex;
    align-items: baseline;
    gap: 4px;
    font-family: var(--m19-mono);
}
.m19-prod-price .cur { font-size: 18px; color: var(--m19-crimson); }
.m19-prod-price .amt {
    font-size: 38px;
    color: var(--m19-crimson);
    letter-spacing: 0.02em;
    font-weight: 400;
}
.m19-prod-price small {
    font-size: 12px;
    color: var(--m19-ink-3);
    letter-spacing: 0.08em;
}
.m19-prod-price .muted {
    font-size: 22px;
    color: var(--m19-ink-2);
    letter-spacing: 0.1em;
}
.m19-prod-moq {
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-ink-2);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.m19-prod-moq strong {
    color: var(--m19-cyan);
    font-weight: 400;
    margin-left: 6px;
}

.m19-prod-attrs {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px 18px;
    font-family: var(--m19-mono);
    font-size: 12px;
    border-top: 1px dashed var(--m19-line);
    border-bottom: 1px dashed var(--m19-line);
    padding: 14px 0;
    margin-bottom: 20px;
}
.m19-prod-attrs dt {
    color: var(--m19-ink-3);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.m19-prod-attrs dd {
    color: var(--m19-ink);
    letter-spacing: 0.04em;
}
.m19-prod-attrs dd a { color: var(--m19-cyan); }

.m19-prod-cta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}
.m19-prod-trust {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.m19-prod-detail {
    margin-top: 48px;
}
.m19-detail-card {
    position: relative;
    background: var(--m19-card);
    border: 1px dashed var(--m19-line-strong);
    padding: 32px 36px;
}

/* ───────── Information page ───────── */

.m19-info-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border: 1px solid var(--m19-line-strong);
    margin-bottom: 32px;
    background: var(--m19-card);
}
.m19-info-stat {
    padding: 18px 16px;
    border-right: 1px dashed var(--m19-line);
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.m19-info-stat:last-child { border-right: none; }
.m19-info-stat-num {
    font-family: var(--m19-mono);
    font-size: 24px;
    font-weight: 400;
    color: var(--m19-ink);
    letter-spacing: 0.04em;
    line-height: 1;
}
.m19-info-stat-num.is-on { color: var(--m19-cyan); }
.m19-info-stat-lab {
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-ink-3);
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.m19-info-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 28px;
    align-items: start;
}
.m19-info-prose {
    background: var(--m19-card);
    border: 1px dashed var(--m19-line-strong);
    padding: 28px 32px;
    position: relative;
}
.m19-info-side {
    display: flex;
    flex-direction: column;
    gap: 18px;
    position: sticky;
    top: 16px;
}
.m19-info-spec-card {
    position: relative;
    background: var(--m19-card);
    border: 1px solid var(--m19-line-strong);
    padding: 22px 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.m19-info-h {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 10px;
    margin-bottom: 14px;
    border-bottom: 1px dashed var(--m19-line);
}
.m19-info-h-tag {
    width: 24px; height: 24px;
    border: 1px solid var(--m19-cyan);
    color: var(--m19-cyan);
    font-family: var(--m19-mono);
    font-size: 11px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.m19-info-h h3 {
    font-family: var(--m19-mono);
    font-weight: 400;
    font-size: 14px;
    color: var(--m19-ink);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.m19-info-spec {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px 14px;
    font-family: var(--m19-mono);
    font-size: 12px;
}
.m19-info-spec dt {
    color: var(--m19-ink-3);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.m19-info-spec dd {
    color: var(--m19-ink);
    letter-spacing: 0.04em;
    word-break: break-word;
}
.m19-info-spec dd a { color: var(--m19-cyan); }

/* facility images */
.m19-info-imgs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 24px;
}
.m19-info-img-cell {
    position: relative;
    aspect-ratio: 4 / 3;
    border: 1px dashed var(--m19-line-strong);
    background: var(--m19-bg-3);
    overflow: hidden;
}
.m19-info-img-cell img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .3s ease;
}
.m19-info-img-cell:hover img { transform: scale(1.04); }
.m19-info-img-id {
    position: absolute;
    top: 8px; left: 8px;
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-cyan);
    background: var(--m19-bg-3);
    padding: 2px 6px;
    border: 1px solid var(--m19-line-strong);
    letter-spacing: 0.08em;
    z-index: 2;
}

/* ───────── Contact ───────── */

.m19-contact-hero {
    position: relative;
    background:
        linear-gradient(var(--m19-grid) 1px, transparent 1px) 0 0 / 32px 32px,
        linear-gradient(90deg, var(--m19-grid) 1px, transparent 1px) 0 0 / 32px 32px,
        var(--m19-card);
    border: 1px dashed var(--m19-cyan);
    padding: 32px 36px;
    margin-bottom: 32px;
}
.m19-contact-hero-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 28px;
    align-items: center;
}
.m19-contact-hero-text {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.m19-contact-hero-tag {
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-cyan);
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.m19-contact-hero-tel {
    font-family: var(--m19-mono);
    font-size: 42px;
    color: var(--m19-ink);
    letter-spacing: 0.04em;
    line-height: 1.1;
    font-weight: 400;
}
.m19-contact-hero-text small {
    font-size: 13px;
    color: var(--m19-ink-2);
    letter-spacing: 0.04em;
}

.m19-contact-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 28px;
    align-items: start;
}
.m19-contact-info {
    background: var(--m19-card);
    border: 1px dashed var(--m19-line-strong);
    padding: 28px 32px;
}
.m19-contact-qr {
    background: var(--m19-card);
    border: 1px dashed var(--m19-line-strong);
    padding: 24px;
    text-align: center;
}
.m19-contact-qr-frame {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 12px auto;
    background: #fff;
    padding: 12px;
    border: 1px solid var(--m19-line-strong);
}
.m19-contact-qr-frame img {
    width: 100%; height: 100%;
    object-fit: contain;
}
.m19-contact-qr-empty {
    width: 100%; height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-ink-3);
    letter-spacing: 0.1em;
    background: var(--m19-bg-3);
}
.m19-contact-qr-note {
    margin-top: 8px;
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-ink-2);
    letter-spacing: 0.08em;
}

/* ───────── News list ───────── */

.m19-news-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.m19-news-item {
    position: relative;
    background: var(--m19-card);
    border: 1px solid var(--m19-line-strong);
    padding: 18px 22px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 18px;
    align-items: center;
    transition: border-color .2s ease, transform .2s ease;
}
.m19-news-item:hover {
    border-color: var(--m19-cyan);
    transform: translateX(4px);
}
.m19-news-id {
    font-family: var(--m19-mono);
    font-size: 12px;
    color: var(--m19-cyan);
    letter-spacing: 0.12em;
    flex-shrink: 0;
}
.m19-news-body {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.m19-news-title {
    font-family: var(--m19-sans);
    font-weight: 500;
    font-size: 15px;
    color: var(--m19-ink);
    letter-spacing: 0.02em;
}
.m19-news-title:hover { color: var(--m19-cyan); }
.m19-news-summary {
    font-size: 12px;
    color: var(--m19-ink-2);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.m19-news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-ink-3);
    letter-spacing: 0.08em;
    flex-shrink: 0;
}
.m19-news-date { color: var(--m19-cyan); }
.m19-news-view { color: var(--m19-ink-3); }
.m19-news-arrow {
    font-family: var(--m19-mono);
    font-size: 16px;
    color: var(--m19-cyan);
    border: 1px dashed var(--m19-cyan);
    padding: 4px 10px;
    transition: all .2s ease;
}
.m19-news-arrow:hover {
    background: var(--m19-cyan);
    color: var(--m19-bg);
    border-style: solid;
}

/* ───────── News detail ───────── */

.m19-news-detail-frame {
    position: relative;
    background: var(--m19-card);
    border: 1px dashed var(--m19-line-strong);
    padding: 40px 48px;
}
.m19-news-detail-h {
    border-bottom: 1px dashed var(--m19-line);
    padding-bottom: 18px;
    margin-bottom: 24px;
}
.m19-news-detail-tag {
    display: inline-block;
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-cyan);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    border: 1px solid var(--m19-cyan);
    padding: 3px 10px;
    margin-bottom: 14px;
}
.m19-news-detail-h h1 {
    font-family: var(--m19-sans);
    font-size: 26px;
    font-weight: 700;
    color: var(--m19-ink);
    line-height: 1.4;
    margin-bottom: 12px;
    letter-spacing: 0.01em;
}
.m19-news-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-ink-2);
    letter-spacing: 0.08em;
}
.m19-news-detail-meta .lab {
    color: var(--m19-cyan);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-right: 4px;
}
.m19-news-detail-meta .sep { color: var(--m19-ink-3); }

.m19-news-detail-prose { padding: 8px 0 24px; }

.m19-news-detail-foot {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    border-top: 1px dashed var(--m19-line);
    padding-top: 20px;
}

/* ───────── Sitemap ───────── */

.m19-sitemap-titleblock {
    position: relative;
    margin-bottom: 28px;
    border: 1px solid var(--m19-line-strong);
    background: var(--m19-card);
    display: grid;
    grid-template-columns: repeat(4, 1fr) 2fr;
}
.m19-sitemap-titleblock .cell {
    padding: 10px 14px;
    border-right: 1px dashed var(--m19-line);
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}
.m19-sitemap-titleblock .cell:last-child { border-right: none; }
.m19-sitemap-titleblock .lab {
    font-family: var(--m19-mono);
    font-size: 9px;
    color: var(--m19-ink-3);
    letter-spacing: 0.18em;
    text-transform: uppercase;
}
.m19-sitemap-titleblock .val {
    font-family: var(--m19-mono);
    font-size: 12px;
    color: var(--m19-cyan);
    letter-spacing: 0.06em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.m19-sitemap-card {
    position: relative;
    background: var(--m19-card);
    border: 1px dashed var(--m19-line-strong);
    padding: 24px 28px;
    margin-bottom: 20px;
}
.m19-sitemap-h {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 12px;
    margin-bottom: 16px;
    border-bottom: 1px dashed var(--m19-line);
}
.m19-sitemap-h-tag {
    width: 24px; height: 24px;
    border: 1px solid var(--m19-cyan);
    color: var(--m19-cyan);
    font-family: var(--m19-mono);
    font-size: 11px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.m19-sitemap-h h3 {
    font-family: var(--m19-mono);
    font-weight: 400;
    font-size: 14px;
    color: var(--m19-ink);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.m19-sitemap-h h3 small {
    font-family: var(--m19-mono);
    font-weight: 400;
    font-size: 11px;
    color: var(--m19-ink-3);
    letter-spacing: 0.14em;
    margin-left: 8px;
    text-transform: uppercase;
}

.m19-sitemap-grid {
    display: grid;
    gap: 8px 14px;
}
.m19-sitemap-grid-3 { grid-template-columns: repeat(3, 1fr); }
.m19-sitemap-grid-2 { grid-template-columns: repeat(2, 1fr); }
.m19-sitemap-grid li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border: 1px dashed transparent;
    transition: all .2s ease;
    min-width: 0;
}
.m19-sitemap-grid li:hover {
    border-color: var(--m19-line);
    background: var(--m19-bg-3);
}
.m19-sitemap-grid li .num {
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-ink-3);
    letter-spacing: 0.08em;
    flex-shrink: 0;
}
.m19-sitemap-grid li:hover .num { color: var(--m19-cyan); }
.m19-sitemap-grid li a {
    color: var(--m19-ink);
    font-size: 13px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}
.m19-sitemap-grid li a:hover { color: var(--m19-cyan); }

/* ───────── Footer ───────── */

.m19-footer {
    background: var(--m19-bg-3);
    border-top: 1px solid var(--m19-line);
    color: var(--m19-ink-2);
    padding: 0 0 24px;
    margin-top: 60px;
    position: relative;
}
.m19-footer-divider {
    color: var(--m19-cyan);
    padding: 12px 0;
    border-bottom: 1px dashed var(--m19-line);
}
.m19-divider-svg {
    width: 100%;
    height: 48px;
    display: block;
}
.m19-footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1.2fr 1fr;
    gap: 36px;
    padding: 36px 0 28px;
}
.m19-footer-col h4 {
    font-family: var(--m19-mono);
    font-weight: 400;
    font-size: 12px;
    color: var(--m19-cyan);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--m19-line);
}
.m19-footer-col ul { display: flex; flex-direction: column; gap: 6px; }
.m19-footer-col ul li {
    font-size: 13px;
    color: var(--m19-ink-2);
    line-height: 1.5;
    display: flex;
    gap: 8px;
    align-items: baseline;
}
.m19-footer-col ul li .lab {
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-ink-3);
    letter-spacing: 0.12em;
    flex-shrink: 0;
    min-width: 36px;
}
.m19-footer-col ul li a {
    color: var(--m19-ink-2);
}
.m19-footer-col ul li a:hover { color: var(--m19-cyan); }

.m19-footer-brand {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}
.m19-footer-mark {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    border: 1px dashed var(--m19-cyan);
    color: var(--m19-cyan);
    font-family: var(--m19-mono);
    font-size: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--m19-card);
}
.m19-footer-brand-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}
.m19-footer-brand-text strong {
    font-family: var(--m19-mono);
    font-size: 16px;
    color: var(--m19-ink);
    font-weight: 400;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    line-height: 1.2;
}
.m19-footer-brand-text small {
    font-family: var(--m19-mono);
    font-size: 10px;
    color: var(--m19-ink-3);
    letter-spacing: 0.1em;
    line-height: 1.5;
}

.m19-footer-spec dl {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 6px 12px;
    font-family: var(--m19-mono);
    font-size: 11px;
}
.m19-footer-spec dt {
    color: var(--m19-ink-3);
    letter-spacing: 0.14em;
    text-transform: uppercase;
}
.m19-footer-spec dd {
    color: var(--m19-cyan);
    letter-spacing: 0.04em;
}

.m19-footer-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    padding-top: 18px;
    border-top: 1px dashed var(--m19-line);
    font-family: var(--m19-mono);
    font-size: 11px;
    color: var(--m19-ink-3);
    letter-spacing: 0.08em;
}
.m19-footer-stamp {
    color: var(--m19-cyan);
    border: 1px solid var(--m19-cyan);
    padding: 3px 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.m19-footer-copy { color: var(--m19-ink-2); flex: 1; text-align: center; }
.m19-footer-codes { display: inline-flex; gap: 8px; align-items: center; }
.m19-footer-codes a { color: var(--m19-cyan); }
.m19-footer-codes .sep { color: var(--m19-ink-3); }

/* ───────── Responsive ───────── */

@media (max-width: 1024px) {
    .m19-shell { padding: 0 24px; }
    .m19-titleblock-row { grid-template-columns: 1fr auto; gap: 20px; }
    .m19-titleblock-meta { display: none; }
    .m19-hero-grid { grid-template-columns: 1fr; gap: 28px; }
    .m19-hero-h2 .line { font-size: 30px; }
    .m19-hero-titleblock { grid-template-columns: repeat(2, 1fr) 2fr; }
    .m19-hero-titleblock .cell:nth-child(3),
    .m19-hero-titleblock .cell:nth-child(4) { display: none; }
    .m19-feat-grid { grid-template-columns: repeat(2, 1fr); }
    .m19-dense-grid { grid-template-columns: repeat(3, 1fr); }
    .m19-supply-layout,
    .m19-info-grid,
    .m19-contact-grid,
    .m19-about-grid { grid-template-columns: 1fr; }
    .m19-side, .m19-info-side { position: static; }
    .m19-info-stats { grid-template-columns: repeat(2, 1fr); }
    .m19-info-stat:nth-child(2) { border-right: none; }
    .m19-info-stat:nth-child(1), .m19-info-stat:nth-child(2) { border-bottom: 1px dashed var(--m19-line); }
    .m19-prod-grid { grid-template-columns: 1fr; }
    .m19-cta-strip-inner { grid-template-columns: 1fr; }
    .m19-cta-strip-tel { border: 1px dashed var(--m19-line-strong); padding: 14px; }
    .m19-footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
    .m19-info-imgs { grid-template-columns: repeat(2, 1fr); }
    .m19-sitemap-titleblock { grid-template-columns: repeat(2, 1fr); }
    .m19-sitemap-titleblock .cell:nth-child(5) { grid-column: 1 / -1; }
    .m19-sitemap-grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .m19-shell { padding: 0 16px; }
    .m19-section { padding: 36px 0; }
    .m19-trust-row { gap: 8px; }
    .m19-trust-meta { width: 100%; }
    .m19-trust-links { width: 100%; }
    .m19-titleblock { padding: 18px 0; }
    .m19-titleblock-row { grid-template-columns: 1fr; gap: 16px; }
    .m19-mast-cta { width: 100%; }
    .m19-brand-name { font-size: 18px; }
    .m19-nav-inner { overflow-x: auto; flex-wrap: nowrap; }
    .m19-nav-inner a { padding: 12px 14px; white-space: nowrap; flex-shrink: 0; }
    .m19-nav-inner a .lbl { font-size: 12px; }
    .m19-section-h { flex-direction: column; align-items: flex-start; gap: 8px; }
    .m19-section-h h2 { font-size: 18px; }
    .m19-hero-frame { padding: 24px; }
    .m19-hero-h2 .line { font-size: 24px; }
    .m19-hero-stats { grid-template-columns: repeat(2, 1fr); }
    .m19-stat-cell:nth-child(2) { border-right: none; }
    .m19-stat-cell:nth-child(1), .m19-stat-cell:nth-child(2) { border-bottom: 1px dashed var(--m19-line); }
    .m19-feat-grid { grid-template-columns: 1fr; }
    .m19-dense-grid { grid-template-columns: repeat(2, 1fr); }
    .m19-info-imgs { grid-template-columns: 1fr; }
    .m19-info-stats { grid-template-columns: 1fr; }
    .m19-info-stat { border-right: none !important; border-bottom: 1px dashed var(--m19-line); }
    .m19-info-stat:last-child { border-bottom: none; }
    .m19-about-card,
    .m19-prod-frame,
    .m19-detail-card,
    .m19-info-prose,
    .m19-contact-info,
    .m19-news-detail-frame { padding: 22px 20px; }
    .m19-news-detail-frame { padding: 24px 20px; }
    .m19-news-detail-h h1 { font-size: 20px; }
    .m19-prod-h1 { font-size: 20px; }
    .m19-prod-price .amt { font-size: 30px; }
    .m19-contact-hero-tel { font-size: 28px; }
    .m19-contact-hero { padding: 22px 20px; }
    .m19-contact-hero-inner { grid-template-columns: 1fr; }
    .m19-cta-strip { padding: 22px 20px; }
    .m19-news-item { grid-template-columns: 1fr; gap: 8px; }
    .m19-news-meta { justify-content: space-between; }
    .m19-footer-grid { grid-template-columns: 1fr; gap: 22px; padding: 28px 0 20px; }
    .m19-footer-bar { flex-direction: column; gap: 10px; text-align: center; }
    .m19-footer-copy { text-align: center; }
    .m19-sitemap-titleblock { grid-template-columns: 1fr; }
    .m19-sitemap-titleblock .cell { border-right: none; border-bottom: 1px dashed var(--m19-line); }
    .m19-sitemap-titleblock .cell:last-child { border-bottom: none; }
    .m19-sitemap-card { padding: 20px 18px; }
    .m19-sitemap-grid-3,
    .m19-sitemap-grid-2 { grid-template-columns: 1fr; }
    .m19-hero-titleblock { grid-template-columns: 1fr 1fr; }
    .m19-hero-titleblock .cell:nth-child(5) { grid-column: 1 / -1; }
}