/* =========================================================
   HONGQI × Metro Group — Flagship Luxury Landing
   Fonts: Didot (display serif), SukhumvitSet (body sans)
   ========================================================= */

/* ---------- Didot ---------- */
@font-face {
    font-family: "Didot";
    src: url("fonts/Didot.otf") format("opentype");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "Didot";
    src: url("fonts/Didot Italic.otf") format("opentype");
    font-weight: 400;
    font-style: italic;
    font-display: swap;
}
@font-face {
    font-family: "Didot";
    src: url("fonts/Didot Bold.otf") format("opentype");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "Didot Title";
    src: url("fonts/Didot Title.otf") format("opentype");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

/* ---------- SukhumvitSet ---------- */
@font-face {
    font-family: "SukhumvitSet";
    src: url("fonts/SukhumvitSet-Thin.ttf") format("truetype");
    font-weight: 100;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "SukhumvitSet";
    src: url("fonts/SukhumvitSet-Light.ttf") format("truetype");
    font-weight: 300;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "SukhumvitSet";
    src: url("fonts/SukhumvitSet-Text.ttf") format("truetype");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "SukhumvitSet";
    src: url("fonts/SukhumvitSet-Medium.ttf") format("truetype");
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "SukhumvitSet";
    src: url("fonts/SukhumvitSet-SemiBold.ttf") format("truetype");
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "SukhumvitSet";
    src: url("fonts/SukhumvitSet-Bold.ttf") format("truetype");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

/* ---------- tokens ---------- */
:root {
    --black: #0a0a0a;
    --ink:   #111214;
    --graphite: #1a1c1f;
    --paper: #ffffff;
    --paper-2: #f6f5f2;
    --rule: rgba(255,255,255,.14);
    --rule-dark: rgba(0,0,0,.12);
    --muted: #6d6d6d;
    --muted-light: rgba(255,255,255,.65);
    --gold: #b59264;
    --gold-soft: #c9ae84;
    --red: #c8102e;

    --font-display: "Didot", "Didot Title", "Playfair Display", "Times New Roman", Georgia, serif;
    --font-sans: "SukhumvitSet", "Helvetica Neue", Arial, "Segoe UI", system-ui, sans-serif;
    /* UI caps (nav, buttons, labels) — Latin-first so uppercase metrics are consistent.
       SukhumvitSet covers any Thai glyphs that fall through. */
    --font-ui: "Helvetica Neue", "Arial", "SukhumvitSet", "Segoe UI", system-ui, sans-serif;

    --ease: cubic-bezier(.22,.8,.28,1);
    --ease-out: cubic-bezier(.2,.7,.2,1);

    --container: 1440px;
    --pad-x: clamp(20px, 4vw, 72px);
    --header-h: 130px;
    --header-h-scrolled: 70px;
    --logo-h: 76px;
    --logo-h-scrolled: 40px;
}

/* ---------- reset ---------- */
*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; background-color: #111;}
body {
    margin: 0;
    font-family: var(--font-sans);
    font-weight: 400;
    color: var(--ink);
    /* background: var(--paper); */
    background: #111;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    line-height: 1.6;
    overflow-x: hidden;
}
img, video, svg { display: block; max-width: 100%; }
button { font: inherit; background: none; border: 0; color: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1,h2,h3,h4 { margin: 0; font-weight: 400; letter-spacing: .01em; }
.visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0);
    white-space: nowrap; border: 0;
}

/* ---------- typography primitives ---------- */
.eyebrow {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: .34em;
    text-transform: uppercase;
    color: var(--gold);
    /* font-weight: 300; */
    font-weight: 600;
}
.eyebrow--light { color: var(--gold-soft); }

.section-title {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(34px, 4.2vw, 58px);
    line-height: 1.1;
    letter-spacing: .005em;
    color: var(--ink);
    text-align: center;
}
.section-title--light { color: #fff; }
.gold { color: var(--gold); font-weight: 400; }

/* ---------- buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5em;
    padding: 16px 38px;
    font-family: var(--font-ui);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: .3em;
    text-transform: uppercase;
    border: 1px solid currentColor;
    transition: background-color .45s var(--ease), color .45s var(--ease), transform .45s var(--ease);
    position: relative;
    overflow: hidden;
}
.btn::after {
    content: "";
    position: absolute; inset: 0;
    background: currentColor;
    transform: translateY(101%);
    transition: transform .5s var(--ease);
    z-index: -1;
    color: #fff;
}
.btn:hover::after { transform: translateY(0); }
.btn--ghost { color: #fff; }
.btn--ghost:hover { color: #000; }
.btn--outline { color: #fff; border-color: rgba(255,255,255,.55); }
.btn--outline:hover { color: #000; }

/* ---------- header ---------- */
.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 100;
    height: var(--header-h);
    background: linear-gradient(180deg, rgba(0,0,0,.55), rgba(0,0,0,0));
    transition: height .55s var(--ease), background-color .45s var(--ease), backdrop-filter .45s var(--ease), box-shadow .45s var(--ease);
    color: #fff;
}
.site-header.is-scrolled {
    height: var(--header-h-scrolled);
    background: rgba(10,10,10,.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(255,255,255,.06);
}
.header-inner {
    height: 100%;
    padding: 0 var(--pad-x);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 32px;
    max-width: var(--container);
    margin: 0 auto;
    position: relative;
}
.logo.logo--hongqi img { height: 60px; }
/* .header .logo--metro img { height: calc(var(--logo-h) * .76); } */
.logos {
    grid-column: 2;
    display: flex;
    align-items: center;
    gap: 16px;
    justify-self: center;
}
.logo img {
    height: var(--logo-h);
    width: auto;
    object-fit: contain;
    transition: height .55s var(--ease);
}
.logo--metro img { height: calc(var(--logo-h) * .76); }
.logo-divider {
    width: 1px;
    height: calc(var(--logo-h) * .72);
    background: rgba(255,255,255,.3);
    transition: height .55s var(--ease);
}
.site-header.is-scrolled .logo img { height: var(--logo-h-scrolled); }
.site-header.is-scrolled .logo--metro img { height: calc(var(--logo-h-scrolled) * .78); }
.site-header.is-scrolled .logo-divider { height: calc(var(--logo-h-scrolled) * .68); }
.nav {
    grid-column: 3;
    justify-self: end;
}
.nav ul { display: flex; gap: 40px; }
.nav a {
    font-family: var(--font-ui);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: .3em;
    text-transform: uppercase;
    position: relative;
    padding: 8px 0;
    color: rgba(255,255,255,.85);
    transition: color .3s var(--ease);
}
.nav a::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 2px;
    height: 1px;
    background: var(--gold);
    transform: scaleX(0);
    transform-origin: right center;
    transition: transform .4s var(--ease);
}
.nav a:hover, .nav a.is-active {
    color: #fff;
}
.nav a:hover::after, .nav a.is-active::after {
    transform: scaleX(1);
    transform-origin: left center;
}
.menu-toggle {
    display: none;
    grid-column: 3;
    justify-self: end;
    width: 40px; height: 40px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
}
.menu-toggle span {
    display: block;
    width: 22px; height: 1px;
    background: #fff;
    transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- floating actions ---------- */
.floating-actions {
    position: fixed;
    right: clamp(12px, 2vw, 28px);
    top: 50%;
    transform: translateY(-50%);
    z-index: 90;
    display: flex;
    flex-direction: column;
    padding: 10px 8px;
    gap: 6px;
    border: 1px solid rgba(255,255,255,.25);
    background: rgba(0,0,0,.35);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-radius: 12px;
}
.fa-btn {
    width: 44px; height: 44px;
    display: grid; place-items: center;
    color: #fff;
    transition: color .3s var(--ease), background-color .3s var(--ease), transform .3s var(--ease);
    border-radius: 2px;
}
.fa-btn img {
    width: 26px; height: 26px;
    transition: filter .3s var(--ease), transform .3s var(--ease);
}

.fa-btn.email img {
    width: 18px;
    opacity: .75;
}
.fa-btn:hover {
    color: var(--gold);
    background: rgba(255,255,255,.05);
}
.fa-btn:hover img {
    transform: scale(1.08);
    filter: drop-shadow(0 0 10px rgba(181, 146, 100, .45));
}
.floating-actions > * + * {
    position: relative;
}
.floating-actions > * + *::before {
    content: "";
    position: absolute;
    top: -3px; left: 10%; right: 10%;
    height: 1px;
    background: rgba(255,255,255,.12);
}

/* ---------- hero ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    color: #fff;
    overflow: hidden;
    background: #000;
}
.hero__video {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    filter: contrast(1.05) saturate(1.04);
}
.hero__scrim {
    position: absolute; inset: 0;
    background:
        radial-gradient(120% 70% at 50% 20%, rgba(0,0,0,0) 0%, rgba(0,0,0,.55) 70%),
        linear-gradient(180deg, rgba(0,0,0,.45) 0%, rgba(0,0,0,.1) 30%, rgba(0,0,0,.75) 100%);
    pointer-events: none;
}
.hero__content {
    position: relative;
    z-index: 2;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--pad-x);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-end;
    padding-bottom: clamp(90px, 14vh, 180px);
    text-align: right;
    gap: 16px;
}
.hero__eyebrow {
    /* font-family: var(--font-ui); */
    font-family: var(--font-display);
    /* font-size: clamp(11px, 1vw, 13px); */
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: .45em;
    text-transform: uppercase;
    color: var(--gold);
    /* margin: 0 0 6px; */
    margin: 0;
    animation: riseIn 1s var(--ease) .2s both;
}
.hero__title {
    font-family: var(--font-display);
    font-size: clamp(56px, 9vw, 128px);
    letter-spacing: .06em;
    line-height: .95;
    margin: 0;
    animation: riseIn 1.1s var(--ease) .35s both;
    display: flex;
    justify-content: flex-end;
}
.hero__title img {
    width: clamp(260px, 38vw, 560px);
    height: auto;
    filter: drop-shadow(0 6px 28px rgba(0,0,0,.45));
}
.hero__tagline {
    font-family: var(--font-display);
    font-weight: 300;
    /* font-size: clamp(13px, 1.15vw, 16px); */
    font-size: 2.01rem;
    color: rgba(255,255,255,.88);
    margin: 0 0 22px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    letter-spacing: .32em;
    animation: riseIn 1.1s var(--ease) .55s both;
    text-transform: uppercase;
}
.hero__tagline span { display: block; }
.hero__tagline span.bigger { font-size: 2.6rem; }
.hero .btn {
    align-self: flex-end;
    animation: riseIn 1s var(--ease) .75s both;
    border-radius: 4px;
}

.hero__scroll {
    position: absolute;
    left: 50%;
    bottom: 36px;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 2;
    color: rgba(255,255,255,.55);
    font-size: 10px;
    letter-spacing: .4em;
    text-transform: uppercase;
}
.hero__scroll span {
    width: 1px; height: 50px;
    background: linear-gradient(180deg, rgba(255,255,255,0), rgba(255,255,255,.9));
    animation: scrollLine 2.4s ease-in-out infinite;
}
.hero__scroll em { font-style: normal; }
@keyframes scrollLine {
    0% { transform: scaleY(.2); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}
@keyframes riseIn {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---------- model carousel ---------- */
.model {
    background: #0e0f11;
    color: #fff;
    overflow: hidden;
}
.model__stage {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
    /* padding: clamp(60px, 9vh, 120px) var(--pad-x) clamp(48px, 7vh, 90px); */
    padding: 0;
}
.model__slides {
    position: relative;
    aspect-ratio: 21/9;
    max-height: 68vh;
    /* min-height: 380px; */
    min-height: 180px;
    overflow: hidden;
    border-radius: 2px;
    margin: 0 auto;
    width: 100%;
}
.model__slide {
    position: absolute; inset: 0;
    opacity: 0;
    transform: scale(1.04);
    transition: opacity 1.1s var(--ease), transform 1.4s var(--ease);
    margin: 0;
}
.model__slide.is-active {
    opacity: 1;
    transform: scale(1);
}
.model__slide img {
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center;
}
.model__label {
    position: absolute;
    /* left: calc(var(--pad-x) + clamp(20px, 4vw, 72px)); */
    left: 2rem;
    top: 48%;
    transform: translateY(-50%);
    z-index: 3;
    pointer-events: none;
}
.model__wordmark {
    position: absolute;
    top: calc(var(--pad-x) * -1 + 10px);
    left: -6px;
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(50px, 6.6vw, 96px);
    letter-spacing: .04em;
    color: rgba(255,255,255,.06);
    white-space: nowrap;
}
.model__name {
    display: block;
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(28px, 3.6vw, 52px);
    letter-spacing: .06em;
    color: #fff;
}
.model__dots {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 32px;
    margin: 0 auto;
    position: absolute;
    bottom: 2rem;
    width: stretch;
}
.dot {
    /* width: 14px; height: 14px; */
    /* border-radius: 50%; */
    /* background: rgba(255,255,255,.22); */
    /* background: #111; */
    /* transition: background-color .3s var(--ease), transform .3s var(--ease); */
    transition: all .3s var(--ease), transform .3s var(--ease);
    border: #ffffff solid 1px;
    opacity: .5;
    cursor: pointer;
}
/* .dot.is-active { background: var(--red); transform: scale(1.15); }
.dot:hover { background: rgba(255,255,255,.5); }
.dot.is-active:hover { background: var(--red); } */
.dot.is-active { opacity: 1;transform: scale(1.15); }
.dot:hover { background: rgba(255,255,255,.5); }
.dot.is-active:hover { background: var(--gold); }

/* ---------- technical details ---------- */
.tech {
    background: linear-gradient(180deg, #fff 0%, #f6f5f2 100%);
    padding: clamp(80px, 10vh, 140px) var(--pad-x) clamp(70px, 9vh, 120px);
    color: var(--ink);
}
.tech__intro {
    max-width: var(--container);
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 14px;
    /* margin-bottom: clamp(40px, 5vh, 72px); */
}
.tech__car {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}
.tech__car-stage {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
}
.tech__car-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: opacity 1.4s var(--ease);
    will-change: opacity;
}
.tech__car-img.is-active {
    opacity: 1;
}

.tech__swatches {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    margin: 28px 0 46px;
    flex-wrap: wrap;
}
.tech__swatch-group {
    display: flex;
    align-items: center;
    padding: 6px 10px;
    border: 1px solid transparent;
    border-radius: 6px;
    transition: border-color .5s var(--ease), background-color .5s var(--ease), box-shadow .5s var(--ease);
}
.tech__interior-options {
    display: none;
    align-items: center;
    gap: 6px;
    margin-left: 12px;
    padding-left: 10px;
    border-left: 1px solid rgba(0,0,0,.12);
}
.tech__swatch-group.is-active .tech__interior-options {
    display: flex;
    animation: slideFromSwatch .5s var(--ease-out) .1s both;
}
.tech__swatch-group.is-active {
    border-color: rgba(0,0,0,.1);
    background: rgba(0,0,0,.03);
    box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
@keyframes slideFromSwatch {
    from {
        transform: translateX(-24px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}
.swatch {
    width: 42px; height: 42px;
    background: var(--c);
    border: 1px solid rgba(0,0,0,.15);
    border-radius: 2px;
    position: relative;
    transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.swatch::after {
    content: "";
    position: absolute;
    inset: -5px;
    border: 1.5px solid transparent;
    border-radius: 4px;
    transition: border-color .5s var(--ease), transform .5s var(--ease);
    transform: scale(.85);
}
.swatch.is-active::after {
    border-color: var(--gold);
    transform: scale(1);
}
.swatch:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 14px rgba(0,0,0,.15);
}
.swatch.is-active {
    box-shadow: 0 2px 10px rgba(181,146,100,.25);
}
.swatch--interior {
    width: 26px;
    height: 26px;
}
.swatch--twotone {
    background: linear-gradient(to bottom right, #ffffff 50%, #8a8a85 50%) !important;
}
.tech__interior {
    width: calc(100% + var(--pad-x) * 2);
    margin-left: calc(var(--pad-x) * -1);
    margin-right: calc(var(--pad-x) * -1);
    margin-bottom: 28px;
}
.tech__interior-stage {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
    border-radius: 4px;
}
.tech__interior-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 1.4s var(--ease);
    will-change: opacity;
}
.tech__interior-img.is-active {
    opacity: 1;
}

.tech__panel {
    max-width: 1040px;
    margin: 0 auto;
    background: #ecebe6;
    padding: clamp(32px, 5vw, 56px) clamp(24px, 5vw, 64px);
    margin-top: 4rem;
}
.tech__trims {
    display: flex;
    justify-content: center;
    gap: clamp(20px, 3vw, 44px);
    border-bottom: 1px solid rgba(0,0,0,.07);
    padding-bottom: 22px;
    flex-wrap: wrap;
}
.trim {
    font-family: var(--font-ui);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: .04em;
    color: var(--muted);
    padding: 4px 2px;
    position: relative;
    transition: color .3s var(--ease);
}
.trim::after {
    content: "";
    position: absolute;
    left: 50%; bottom: -23px;
    width: 0; height: 1px;
    background: var(--gold);
    transition: width .35s var(--ease), left .35s var(--ease);
}
.trim:hover { color: var(--ink); }
.trim.is-active { color: var(--gold); }
.trim.is-active::after { width: 100%; left: 0; }

.tech__specs {
    margin: 0;
    padding: 36px 0 10px;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px 10px;
    text-align: center;
}
.spec { margin: 0; }
.spec dt {
    font-family: var(--font-ui);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: .28em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 14px;
}
.spec dd {
    margin: 0;
    font-family: "Didot", "Didot Title", "Playfair Display", Georgia, "Times New Roman", serif;
    font-weight: 400;
    font-size: clamp(20px, 1.9vw, 26px);
    color: var(--ink);
    letter-spacing: .02em;
    line-height: 1.2;
}

/* ---------- highlights ---------- */
.highlights {
    background: #000;
    color: #fff;
    padding: clamp(80px, 10vh, 140px) var(--pad-x) clamp(80px, 10vh, 140px);
}
.highlights .section-title {
    margin-bottom: clamp(40px, 6vh, 70px);
}
.highlights__grid {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 300px;
    gap: 16px;
}
.tile {
    position: relative;
    margin: 0;
    overflow: hidden;
    background: #111;
    cursor: pointer;
}
.tile img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 1.2s var(--ease), filter 1.2s var(--ease);
    filter: brightness(.82);
}
.tile:hover img { transform: scale(1.06); filter: brightness(.95); }
.tile figcaption {
    position: absolute;
    left: 24px; bottom: 22px;
    font-family: var(--font-ui);
    font-size: 17px;
    font-weight: 400;
    letter-spacing: .02em;
    color: #fff;
    z-index: 2;
    text-shadow: 0 2px 20px rgba(0,0,0,.6);
}
.tile::after {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(0,0,0,.75) 100%);
    pointer-events: none;
}
.tile--wide { grid-column: span 2; }

.highlights__feature {
    max-width: 1280px;
    margin: clamp(40px, 8vw, 80px) auto 0;
    position: relative;
    aspect-ratio: 21 / 9;
    overflow: hidden;
    background: #111;
}
.highlights__feature video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(.62);
}
.highlights__feature-copy {
    position: absolute;
    left: clamp(20px, 5vw, 72px);
    right: clamp(20px, 5vw, 72px);
    bottom: clamp(20px, 5vw, 72px);
    max-width: 460px;
}
.highlights__feature-copy h3 {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(22px, 2.6vw, 38px);
    color: #fff;
    margin: 10px 0 14px;
    letter-spacing: .01em;
    line-height: 1.2;
}
.highlights__feature-copy p {
    color: rgba(255,255,255,.75);
    font-size: clamp(13px, 1.1vw, 14px);
    font-weight: 300;
    line-height: 1.7;
    margin: 0;
}

@media (max-width: 860px) {
    .highlights__feature {
        aspect-ratio: 4 / 5;
    }
    .highlights__feature::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(0,0,0,.7) 100%);
        pointer-events: none;
    }
    .highlights__feature-copy { max-width: none; }
}
@media (max-width: 560px) {
    .highlights__feature {
        aspect-ratio: 3 / 4;
    }
}

/* ---------- stories ---------- */
#storiesTitle {
    color: var(--gold);
}
#stories .btn:hover {
    color: var(--gold);
    background: rgba(255,255,255,.05);
}
.stories {
    background: #0a0a0a;
    color: #fff;
    padding: clamp(80px, 10vh, 140px) var(--pad-x) clamp(70px, 9vh, 110px);
}
.stories .section-title { margin-bottom: clamp(40px, 5vh, 70px); }
.stories__grid {
    max-width: var(--container);
    margin: 0 auto;
    /* display: grid; */
    display: flex;
    flex-direction: row;
    /* grid-template-columns: repeat(3, 1fr); */
    gap: 36px;
}
.story { display: flex; flex-direction: column; }
.story__media {
    display: block;
    /* aspect-ratio: 4/3; */
    overflow: hidden;
    background: #151515;
    /* margin-bottom: 20px; */
}
.story__media img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 1s var(--ease);
}
.story__media:hover img { transform: scale(1.04); }
.story h3 {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 500;
    letter-spacing: .08em;
    text-transform: uppercase;
    margin-bottom: 14px;
    color: #fff;
}
.story p {
    font-size: 13.5px;
    font-weight: 300;
    line-height: 1.75;
    color: rgba(255,255,255,.6);
    margin: 0 0 18px;
}
.story__link {
    margin-top: auto;
    font-family: var(--font-ui);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: .3em;
    text-transform: uppercase;
    color: var(--gold);
    transition: gap .3s var(--ease);
    display: inline-flex;
    gap: 8px;
    align-items: center;
}
.story__link:hover,
a.story:hover .story__link { gap: 14px; }
.stories__cta {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 18px;
    margin-top: clamp(50px, 6vh, 80px);
    flex-wrap: wrap;
}
.stories__cta .btn { border-radius: 8px; }

/* ---------- connect dropdown ---------- */
.connect {
    position: relative;
    display: inline-flex;
    flex-direction: column;
    align-items: stretch;
    min-width: 220px;
}
.connect__toggle {
    width: 100%;
    gap: 12px;
}
.connect__chev {
    transition: transform .4s var(--ease);
    opacity: .85;
}
.connect[data-open="true"] .connect__chev {
    transform: rotate(180deg);
}
.connect__menu {
    position: relative;
    margin: 10px 0 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: max-height .55s var(--ease), opacity .4s var(--ease), transform .5s var(--ease);
    pointer-events: none;
}
.connect[data-open="true"] .connect__menu {
    max-height: 320px;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.connect__item {
    display: block;
    padding: 16px 22px;
    text-align: center;
    background: #1a1a1a;
    color: #fff;
    border: 1px solid rgba(181,146,100,.35);
    font-family: var(--font-ui);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: .3em;
    text-transform: uppercase;
    transition: background-color .35s var(--ease), color .35s var(--ease), border-color .35s var(--ease);
    border-radius: 8px;
}
.connect__item:hover {
    background: var(--gold);
    color: #0a0a0a;
    border-color: var(--gold);
}

/* ---------- footer ---------- */
.footer {
    background: #000;
    color: rgba(255,255,255,.75);
    border-top: 1px solid var(--rule);
}
.footer__inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: clamp(40px, 6vh, 72px) var(--pad-x) clamp(28px, 4vh, 50px);
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: clamp(28px, 5vw, 72px);
    align-items: center;
}
.footer__brand { display: flex; align-items: center; }
.footer__logo--hongqi { height: 148px; width: auto; }
.footer__logo--metro { height: 48px; width: auto; margin-bottom: 16px; }
.footer__info { padding-left: clamp(0px, 3vw, 28px); border-left: 1px solid var(--rule); }
.footer__name {
    font-family: var(--font-ui);
    font-weight: 600;
    color: #fff;
    font-size: 18px;
    margin: 0 0 10px;
    letter-spacing: .04em;
    text-transform: uppercase;
}
.footer__address {
    margin: 0;
    font-family: var(--font-ui);
    font-size: 13px;
    font-weight: 400;
    line-height: 1.75;
    color: rgba(255,255,255,.65);
    letter-spacing: .08em;
    text-transform: uppercase;
}
.footer__social { display: flex; gap: 14px; }
.footer__social a {
    width: 40px; height: 40px;
    display: grid; place-items: center;
    border-radius: 50%;
    color: rgba(255,255,255,.85);
    transition: color .3s var(--ease), background-color .3s var(--ease);
    background: rgba(255,255,255,.06);
}
.footer__social a:hover { color: #000; background: var(--gold); }

.footer__bottom {
    border-top: 1px solid var(--rule);
    padding: 20px var(--pad-x);
    max-width: var(--container);
    margin: 0 auto;
    display: flex;
    font-family: var(--font-ui);
    font-weight: 400;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    color: rgba(255,255,255,.5);
    font-size: 12px;
    letter-spacing: .04em;
    flex-wrap: wrap;
}
.footer__bottom nav { display: flex; gap: 24px; }
.footer__bottom a { transition: color .3s var(--ease); }
.footer__bottom a:hover { color: var(--gold); }

/* ---------- reveal on scroll ---------- */
[data-reveal] {
    opacity: 0;
    transform: translateY(36px);
    transition: opacity 1s var(--ease), transform 1s var(--ease);
}
[data-reveal].is-in {
    opacity: 1;
    transform: none;
}

/* ---------- lightbox ---------- */
.tile { cursor: zoom-in; }
a.story { cursor: pointer; }
.story--info { cursor: default; }
.tile:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 4px;
}
.story__media { cursor: inherit; }

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: hidden;
    pointer-events: none;
    transition: visibility 0s linear .4s;
}
.lightbox.is-open {
    visibility: visible;
    pointer-events: auto;
    transition: visibility 0s;
}
.lightbox__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0);
    backdrop-filter: blur(0);
    -webkit-backdrop-filter: blur(0);
    transition:
        background-color .4s var(--ease),
        backdrop-filter .4s var(--ease),
        -webkit-backdrop-filter .4s var(--ease);
    will-change: backdrop-filter, background-color;
}
.lightbox.is-open .lightbox__backdrop {
    background: rgba(0, 0, 0, .85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.lightbox__frame {
    position: relative;
    width: min(1100px, 92vw);
    max-height: 88vh;
    background: #0c0c0e;
    border: 1px solid rgba(181, 146, 100, .25);
    box-shadow: 0 40px 90px rgba(0,0,0,.5);
    display: flex;
    flex-direction: column;
    transform: translateY(24px) scale(.98);
    opacity: 0;
    /* transition: transform .55s var(--ease), opacity .5s var(--ease); */
    transition: transform .35s var(--ease), opacity .35s var(--ease);
}
.lightbox.is-open .lightbox__frame {
    transform: translateY(0) scale(1);
    opacity: 1;
    transition-delay: .12s;
}
.lightbox__content {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    min-height: 0;
    margin: 0;
}
.lightbox__media {
    position: relative;
    overflow: hidden;
    background: #000;
    min-height: 320px;
    max-height: 88vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.lightbox__media img {
    width: 100%;
    height: 100%;
    max-height: 88vh;
    object-fit: contain;
    transition: opacity .35s var(--ease), transform .6s var(--ease);
}
#lightboxImg2 {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: opacity .8s var(--ease);
    pointer-events: none;
    z-index: 1;
}
.lightbox__media.is-swapping img {
    opacity: 0;
    transform: scale(1.02);
}
.lightbox__media.is-swapping #lightboxImg2 {
    opacity: 0;
}
.lightbox__caption {
    margin: 0;
    padding: clamp(28px, 4vw, 52px);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 16px;
    overflow-y: auto;
    font-family: var(--font-ui);
}
.lightbox__caption h3 {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(24px, 2.4vw, 34px);
    letter-spacing: .02em;
    line-height: 1.15;
    margin: 0;
    color: #fff;
}
.lightbox__caption p {
    margin: 0;
    color: rgba(255,255,255,.72);
    font-size: 14.5px;
    font-weight: 300;
    line-height: 1.75;
}
.lightbox__counter {
    margin-top: 8px;
    font-family: var(--font-ui);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: .35em;
    color: rgba(255,255,255,.45);
    text-transform: uppercase;
}

.lightbox__close {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    color: #fff;
    background: rgba(0,0,0,.4);
    border: 1px solid rgba(255,255,255,.18);
    border-radius: 50%;
    z-index: 3;
    transition: background-color .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
}
.lightbox__close:hover {
    background: var(--gold);
    color: #000;
    transform: rotate(90deg);
}

.lightbox__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    background: rgba(0,0,0,.35);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 50%;
    color: #fff;
    z-index: 3;
    transition: background-color .3s var(--ease), color .3s var(--ease);
}
.lightbox__nav:hover {
    background: var(--gold);
    color: #000;
}
.lightbox__nav--prev { left: 18px; }
.lightbox__nav--next { right: 18px; }

.lightbox__slide-dots {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: none;
    gap: 8px;
    z-index: 2;
}
.lightbox__slide-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,.35);
    border: none;
    cursor: pointer;
    transition: background-color .3s ease;
    padding: 0;
}
.lightbox__slide-dot.is-active {
    background: var(--gold);
}
.lightbox__slide-dot:hover {
    background: rgba(255,255,255,.7);
}


.left-golden-border {
    padding: 30px 20px 10px;
    border-left: 1px solid var(--gold);
}

@media (max-width: 860px) {
    .lightbox__frame { width: 94vw; max-height: 92vh; }
    .lightbox__content { grid-template-columns: 1fr; }
    .lightbox__media { max-height: 52vh; min-height: 220px; }
    .lightbox__media img { max-height: 52vh; }
    .lightbox__nav { width: 40px; height: 40px; }
    .lightbox__nav--prev { left: 10px; }
    .lightbox__nav--next { right: 10px; }
}

/* body scroll lock */
body.is-locked { overflow: hidden; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1100px) {
    .tech__specs { grid-template-columns: repeat(3, 1fr); gap: 28px 16px; }
    .highlights__grid { grid-auto-rows: 260px; }
}

@media (max-width: 860px) {
    :root {
        --header-h: 84px;
        --header-h-scrolled: 60px;
        --logo-h: 48px;
        --logo-h-scrolled: 28px;
    }

    .header-inner { grid-template-columns: 1fr auto; }
    .logos { grid-column: 1; justify-self: start; }
    .nav {
        position: fixed;
        inset: var(--header-h) 0 0 0;
        background: rgba(5,5,5,.96);
        backdrop-filter: blur(16px);
        grid-column: unset;
        transform: translateX(100%);
        transition: transform .45s var(--ease);
        padding: 40px;
    }
    .nav.is-open { transform: translateX(0); }
    .nav ul { flex-direction: column; gap: 28px; }
    .nav a { font-size: 18px; letter-spacing: .18em; }
    .menu-toggle { display: flex; grid-column: 2; }

    .floating-actions { right: 10px; padding: 6px 4px; }
    .fa-btn { width: 38px; height: 38px; }
    .fa-btn img { width: 20px; height: 20px; }

    .hero__content { align-items: center; text-align: center; }
    .hero .btn { align-self: center; }

    .highlights__grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 220px;
    }
    .tile--wide { grid-column: span 2; }

    /* .stories__grid { grid-template-columns: 1fr; gap: 42px; } */

    .footer__inner {
        grid-template-columns: 1fr;
        text-align: center;
        justify-items: center;
    }
    .footer__info { border-left: 0; padding-left: 0; }
    .footer__social { justify-content: center; }
    .footer__bottom { flex-direction: column; text-align: center; }
    .hero__tagline { font-size: 1.1rem; }
    .hero__tagline span.bigger { font-size: 1.75rem; }
    .footer__info {
        display: flex;
        flex-direction: column; 
    }
    .hero__content { justify-content: center; }
    .hero__eyebrow {
        font-size: .7rem;
    }
}

@media (max-width: 560px) {
    .hero__title { font-size: 64px; }
    .tech__specs { grid-template-columns: repeat(2, 1fr); }
    .tech__panel { padding: 28px 20px; }
    .highlights__grid { grid-template-columns: 1fr; grid-auto-rows: 240px; }
    .tile--wide { grid-column: span 1; }
    .model__wordmark { display: none; }
    .hero__tagline { font-size: .95rem; }
    .hero__tagline span.bigger { font-size: 1.3rem; }
    .model__label { 
        left: .75rem;
        top: 30%;
    }
    .hero__eyebrow {
        font-size: .6rem;
    }
    .stories__grid { flex-direction: column; gap: 42px; }
}

/* ---------- reduce-motion ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
    .hero__video { display: none; }
    .hero { background: #0a0a0a; }
}