:root {
  --ink: #0c0914;
  --ink-2: #151024;
  --ink-3: #1f1735;
  --purple-900: #2a0b57;
  --purple-700: #6a16b8;
  --purple: #a02cf5;
  --purple-400: #b865ff;
  --lavender: #d6b0ff;
  --cyan: #5fd8e6;
  --paper: #ffffff;
  --paper-2: #f6f3fb;
  --line-dark: rgba(255, 255, 255, .08);
  --line-light: #e6dff2;
  --text-dark: #1a1426;
  --muted: #6c6480;
  --radius: 14px;
  --sans: "Inter", "Noto Sans TC", system-ui, sans-serif;
  --display: "Barlow Condensed", var(--sans);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  background: var(--ink);
  color: #eee9f7;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3 { margin: 0; line-height: 1.15; letter-spacing: .01em; }

.container { width: min(1240px, 100% - 40px); margin-inline: auto; }

.eyebrow {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: .22em;
  font-size: .85rem;
  color: var(--lavender);
  margin: 0 0 14px;
}
.eyebrow--dark { color: var(--purple); }
.muted { color: var(--muted); }
.grad {
  background: linear-gradient(100deg, #d9c2ff 0%, var(--purple-400) 45%, var(--purple) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 26px; border-radius: 999px; border: 1.5px solid transparent;
  font: 700 .95rem/1 var(--sans); cursor: pointer;
  transition: transform .2s, background .2s, box-shadow .2s, color .2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--purple); color: #fff; box-shadow: 0 8px 24px -10px var(--purple); }
.btn--primary:hover { background: var(--purple-400); }
.btn--ghost { border-color: rgba(214, 176, 255, .45); color: #fff; }
.btn--ghost:hover { background: rgba(160, 44, 245, .15); }
.btn--light { background: #fff; color: var(--purple-700); }
.btn--sm { padding: 10px 18px; font-size: .85rem; }

.link-arrow { font-weight: 700; color: var(--purple-400); }

/* ---------- header ---------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(12, 9, 20, .82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-dark);
}
.header__inner {
  width: min(1320px, 100% - 40px); margin-inline: auto;
  display: flex; align-items: center; gap: 28px; height: 74px;
}
.logo { display: inline-flex; align-items: center; flex-shrink: 0; }
.logo img { height: 42px; width: auto; display: block; transition: filter .25s; }
.logo:hover img { filter: drop-shadow(0 0 12px rgba(160, 44, 245, .55)); }
.footer .logo img { height: 54px; }
.nav { display: flex; gap: 22px; font-size: .9rem; font-weight: 500; }
.nav a { color: #cfc6e2; position: relative; padding: 6px 0; white-space: nowrap; }
.nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--purple-400); transform: scaleX(0); transition: transform .25s; }
.nav a:hover { color: #fff; }
.nav a:hover::after { transform: scaleX(1); }
.header__tools { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.search { position: relative; }
.search input {
  width: 190px; padding: 9px 36px 9px 14px; border-radius: 999px;
  background: var(--ink-3); border: 1px solid var(--line-dark); color: #fff; font: inherit; font-size: .85rem;
}
.search input:focus { outline: none; border-color: var(--purple-400); }
.search svg, .cart svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.search svg { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); color: #9b90b5; }
.cart { position: relative; background: none; border: 0; color: #fff; cursor: pointer; padding: 6px; }
.cart svg { width: 24px; height: 24px; }
.cart__count {
  position: absolute; top: -2px; right: -4px; min-width: 18px; height: 18px; border-radius: 9px;
  background: var(--cyan); color: var(--ink); font-size: .7rem; font-weight: 900; display: grid; place-items: center;
}
.cart.bump { animation: bump .35s; }
@keyframes bump { 50% { transform: scale(1.25); } }
.burger { display: none; background: none; border: 0; width: 36px; height: 36px; cursor: pointer; padding: 6px; }
.burger span { display: block; height: 2px; background: #fff; margin: 5px 0; transition: .25s; }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden; isolation: isolate;
  min-height: calc(100vh - 74px);
  display: flex; flex-direction: column; justify-content: center;
  padding: 72px 0 0;
  background: #07050d;
}
.hero__bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.hero__bg::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(45% 55% at 68% 52%, rgba(160, 44, 245, .55), transparent 70%),
    radial-gradient(30% 40% at 95% 10%, rgba(95, 216, 230, .10), transparent 70%),
    radial-gradient(60% 60% at 0% 100%, rgba(58, 15, 115, .5), transparent 70%);
}
.hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(60% 70% at 65% 50%, #000 10%, transparent 80%);
}
.hero__watermark {
  position: absolute; right: -2vw; bottom: -6vw;
  font-family: var(--display); font-weight: 800; font-size: 34vw; line-height: .8; letter-spacing: -.02em;
  color: transparent; -webkit-text-stroke: 1px rgba(214, 176, 255, .12);
  user-select: none;
}
.hero__grid {
  position: relative; width: min(1400px, 100% - 64px); margin-inline: auto;
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 24px; align-items: center;
}
.eyebrow__dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan);
  margin-right: 12px; vertical-align: middle; box-shadow: 0 0 0 4px rgba(95, 216, 230, .15);
  animation: blink 2s infinite;
}
@keyframes blink { 50% { box-shadow: 0 0 0 8px rgba(95, 216, 230, 0); } }
.hero h1 { font-size: clamp(2.6rem, 5.4vw, 5rem); font-weight: 900; line-height: 1.08; letter-spacing: -.01em; }
.lead { font-size: 1.08rem; color: #bdb3d3; max-width: 30em; margin: 26px 0 34px; }
.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero__cta .btn svg { width: 18px; height: 18px; margin-left: 10px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; transition: transform .2s; }
.hero__cta .btn:hover svg { transform: translateX(3px); }
.hero__links { color: #7f7598; font-size: .9rem; margin: 26px 0 0; }
.hero__links a { color: var(--lavender); border-bottom: 1px solid rgba(214, 176, 255, .35); }
.hero__links a:hover { color: #fff; }

.hero__visual { position: relative; margin: 0 -4vw 0 0; }
.hero__photo { position: relative; isolation: isolate; animation: rise 1.2s cubic-bezier(.2, .8, .2, 1) both; }
.hero__photo img {
  width: 100%; height: auto;
  filter: contrast(1.08) brightness(.95) drop-shadow(0 50px 50px rgba(0, 0, 0, .7)) drop-shadow(0 0 60px rgba(160, 44, 245, .35));
}
/* purple anodized grade, clipped to the transmission silhouette */
.hero__tint {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(115deg, rgba(160, 44, 245, .15) 0%, rgba(184, 101, 255, .55) 55%, rgba(160, 44, 245, .8) 100%);
  mix-blend-mode: color;
  -webkit-mask: url("assets/8hp-cutaway.webp") center / 100% 100% no-repeat;
          mask: url("assets/8hp-cutaway.webp") center / 100% 100% no-repeat;
}
.hero__caption {
  position: absolute; right: 5vw; bottom: -6px;
  font-family: var(--display); font-size: .8rem; letter-spacing: .3em; color: #6d6488;
}
@keyframes rise { from { opacity: 0; transform: translateY(30px) scale(.98); } }

/* hotspots */
.hotspot {
  position: absolute; left: var(--x); top: var(--y); z-index: 2;
  width: 18px; height: 18px; margin: -9px 0 0 -9px; padding: 0; border: 0; border-radius: 50%;
  background: var(--cyan); cursor: pointer;
  box-shadow: 0 0 0 4px rgba(95, 216, 230, .25), 0 0 20px rgba(95, 216, 230, .8);
}
.hotspot::before {
  content: ""; position: absolute; inset: -10px; border-radius: 50%;
  border: 1.5px solid var(--cyan); animation: ping 2.2s cubic-bezier(0, 0, .2, 1) infinite;
}
.hotspot::after {
  content: attr(data-label) "\A" attr(data-desc); white-space: pre;
  position: absolute; left: 34px; top: 50%; transform: translateY(-50%);
  padding: 8px 14px 8px 14px; border-left: 2px solid var(--cyan);
  background: rgba(10, 7, 18, .78); backdrop-filter: blur(8px);
  font: 700 .85rem/1.5 var(--sans); color: #fff; text-align: left;
  pointer-events: none;
}
.hotspot--left::after { left: auto; right: 34px; border-left: 0; border-right: 2px solid var(--cyan); text-align: right; }
.hotspot:hover, .hotspot:focus-visible { background: #fff; outline: none; }
@keyframes ping { 75%, 100% { transform: scale(2); opacity: 0; } }

/* spec strip */
.hero__specs {
  position: relative; width: min(1400px, 100% - 64px); margin: 40px auto 0;
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255, 255, 255, .1);
}
.spec { padding: 26px 0 34px; display: grid; grid-template-columns: auto 1fr; align-items: baseline; column-gap: 6px; }
.spec + .spec { padding-left: 32px; border-left: 1px solid rgba(255, 255, 255, .1); }
.spec b { font-family: var(--display); font-size: 2.6rem; font-weight: 800; color: #fff; line-height: 1; }
.spec small { font-family: var(--display); font-size: 1rem; font-weight: 700; color: var(--lavender); }
.spec span { grid-column: 1 / -1; font-size: .82rem; color: #8a80a3; margin-top: 6px; }

/* ticker */
.ticker { background: var(--purple); overflow: hidden; border-block: 1px solid rgba(255, 255, 255, .15); }
.ticker__track { display: flex; width: max-content; animation: marquee 38s linear infinite; }
.ticker span {
  font-family: var(--display); font-weight: 700; font-size: 1.05rem; letter-spacing: .18em; color: #fff;
  padding: 14px 28px; display: inline-flex; align-items: center; gap: 28px; white-space: nowrap;
}
.ticker span::after { content: ""; width: 6px; height: 6px; background: rgba(255, 255, 255, .5); transform: rotate(45deg); }
@keyframes marquee { to { transform: translateX(-50%); } }

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

/* ---------- sections ---------- */
.section { padding: 100px 0; }
section[id] { scroll-margin-top: 74px; }
.section--light { background: var(--paper); color: var(--text-dark); }
.section__head { margin-bottom: 40px; }
.section__head h2, .tech h2 { font-size: clamp(1.9rem, 3.4vw, 2.8rem); font-weight: 900; }
.section__head .muted { margin: 10px 0 0; }
.section__head--row { display: flex; align-items: end; justify-content: space-between; gap: 20px; }

/* platforms */
.filters { display: flex; gap: 8px; margin-bottom: 26px; flex-wrap: wrap; }
.chip {
  border: 1.5px solid var(--line-light); background: #fff; color: var(--text-dark);
  padding: 8px 18px; border-radius: 999px; font: 500 .9rem var(--sans); cursor: pointer; transition: .2s;
}
.chip:hover { border-color: var(--purple-400); }
.chip.is-active { background: var(--text-dark); color: #fff; border-color: var(--text-dark); }
.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.plat {
  position: relative; display: flex; flex-direction: column; justify-content: flex-end; gap: 4px;
  min-height: 140px; padding: 22px; border-radius: var(--radius);
  background: var(--paper-2); border: 1.5px solid transparent; overflow: hidden;
  transition: transform .25s, border-color .25s, background .25s, color .25s;
}
.plat::before {
  content: ""; position: absolute; right: -30px; top: -30px; width: 110px; height: 110px; border-radius: 50%;
  border: 14px solid var(--purple); opacity: .08; transition: opacity .25s;
}
.plat:hover { transform: translateY(-3px); background: var(--purple); color: #fff; }
.plat:hover::before { opacity: .3; border-color: #fff; }
.plat:hover .plat__meta { color: rgba(255, 255, 255, .8); }
.plat__code { font-family: var(--display); font-size: 1.55rem; font-weight: 700; line-height: 1.1; }
.plat__meta { font-size: .85rem; color: var(--muted); }
.plat--ask { background: #fff; border: 1.5px dashed var(--lavender); }
.plat--ask .plat__code { font-family: var(--sans); font-size: 1.1rem; font-weight: 900; }
.plat--ask .plat__meta { color: var(--purple); font-weight: 700; }
.plat.is-hidden { display: none; }

/* products */
.products { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product { background: var(--ink-2); border: 1px solid var(--line-dark); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: border-color .25s, transform .25s; }
.product:hover { border-color: rgba(184, 101, 255, .6); transform: translateY(-4px); }
.product__img { position: relative; aspect-ratio: 1; background: radial-gradient(circle at 50% 45%, #fff 0%, #ece4f8 70%); display: grid; place-items: center; }
.product__img svg { width: 72%; transition: transform .5s; }
.product:hover .product__img svg { transform: rotate(-8deg) scale(1.04); }
.tag { position: absolute; top: 14px; left: 14px; background: var(--purple); color: #fff; font-size: .75rem; font-weight: 700; padding: 4px 10px; border-radius: 6px; }
.tag--cyan { background: var(--cyan); color: var(--ink); }
.product__body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.product__cat { font-family: var(--display); letter-spacing: .12em; font-size: .8rem; color: var(--lavender); margin: 0 0 4px; }
.product h3 { font-size: 1.15rem; font-weight: 700; }
.product__desc { font-size: .88rem; color: #a79dbd; margin: 8px 0 18px; flex: 1; }
.product__foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.price { white-space: nowrap; font-family: var(--display); font-size: 1.4rem; font-weight: 700; color: #fff; }

/* clutch plate symbol tints */
.plate__face { fill: url(#pPurple); }
.plate__grooves { stroke: rgba(255, 255, 255, .35); }
.plate__spline { stroke: #a02cf5; }
.tint-2 .plate__face { fill: #2a0b57; }
.tint-2 .plate__spline { stroke: #2a0b57; }
.tint-3 .plate__face { fill: #9d5cf2; }
.tint-3 .plate__spline { stroke: #9d5cf2; }

/* tech */
.tech { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.tech .muted { margin: 20px 0 28px; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 18px 24px; }
.checks li { position: relative; padding-left: 30px; font-size: .9rem; color: var(--muted); }
.checks li::before { content: ""; position: absolute; left: 0; top: 4px; width: 18px; height: 18px; border-radius: 50%; background: var(--purple) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12l4 4 8-8'/%3E%3C/svg%3E") center/12px no-repeat; }
.checks b { display: block; color: var(--text-dark); font-size: 1rem; }
.tech__bars { background: var(--ink); color: #fff; border-radius: 20px; padding: 36px; box-shadow: 0 30px 60px -30px rgba(90, 31, 174, .6); }
.bars__title { font-weight: 700; margin: 0 0 22px; }
.bars__title span { color: #8f84a8; font-weight: 400; font-size: .85rem; }
.bar { display: grid; grid-template-columns: 96px 1fr 56px; align-items: center; gap: 14px; margin-bottom: 16px; font-size: .88rem; }
.bar__label { color: #cfc6e2; }
.bar__track { height: 12px; background: var(--ink-3); border-radius: 6px; overflow: hidden; }
.bar__fill { display: block; height: 100%; width: 0; border-radius: 6px; background: linear-gradient(90deg, var(--purple-700), var(--purple-400)); transition: width 1.2s cubic-bezier(.2, .8, .2, 1); }
.bar__fill--stock { background: #4a4260; }
.bar__fill--max { background: linear-gradient(90deg, var(--purple), var(--cyan)); }
.is-visible .bar__fill { width: var(--w); }
.bar__val { font-family: var(--display); font-weight: 700; font-size: 1.15rem; text-align: right; }
.bars__note { font-size: .75rem; color: #8f84a8; margin: 18px 0 0; }

/* craft */
.craft { position: relative; height: 620px; overflow: hidden; background: var(--ink); }
/* 直式照片：桌機放右半邊，焦點對準手上那顆輪轂 */
.craft img { position: absolute; top: 0; right: 0; width: 58%; height: 100%; object-fit: cover; object-position: center 62%; }
.craft img { -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 35%); mask-image: linear-gradient(90deg, transparent 0%, #000 35%); }
.craft__overlay {
  position: absolute; inset: 0; display: flex; align-items: center;
  background: linear-gradient(90deg, var(--ink) 0%, var(--ink) 40%, rgba(12, 9, 20, .55) 52%, rgba(12, 9, 20, 0) 70%);
}
.craft h2 { font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 900; color: #fff; }
.craft p:last-child { color: #cfc6e2; margin-top: 18px; max-width: 28em; }

/* records */
.records { background: linear-gradient(180deg, #120b22, var(--ink)); }
.records__head { display: flex; align-items: flex-end; gap: 40px; flex-wrap: wrap; margin-bottom: 50px; }
.records__big {
  font-family: var(--display); font-weight: 800; font-size: clamp(4rem, 12vw, 9.5rem); line-height: .85; letter-spacing: .02em;
  color: transparent; -webkit-text-stroke: 2px var(--purple-400);
}
.records__line { font-size: clamp(1.4rem, 2.6vw, 2rem); font-weight: 900; margin: 0 0 8px; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-dark); border-radius: var(--radius); overflow: hidden; }
.stat { background: var(--ink-2); padding: 30px 26px; }
.stat b { display: block; font-family: var(--display); font-size: 3rem; font-weight: 800; line-height: 1; color: #fff; }
.stat small { font-size: 1.1rem; color: var(--lavender); margin-left: 4px; }
.stat span { display: block; margin-top: 10px; font-size: .85rem; color: #a79dbd; }

/* support */
.support { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.support__card { border: 1.5px solid var(--line-light); border-radius: var(--radius); padding: 32px; display: flex; flex-direction: column; gap: 10px; transition: border-color .25s, box-shadow .25s; }
.support__card:hover { border-color: var(--purple); box-shadow: 0 20px 40px -24px rgba(160, 44, 245, .5); }
.support__num { font-family: var(--display); font-weight: 800; color: var(--lavender); font-size: 1.1rem; }
.support__card h3 { font-size: 1.35rem; font-weight: 900; }
.support__card p { color: var(--muted); margin: 0 0 10px; flex: 1; }
.support__card .link-arrow { color: var(--purple); }

/* newsletter */
.newsletter { background: linear-gradient(110deg, var(--purple-900), var(--purple) 60%, var(--purple-400)); padding: 64px 0; }
.newsletter__inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.newsletter h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); font-weight: 900; color: #fff; }
.newsletter p { margin: 6px 0 0; color: rgba(255, 255, 255, .8); }
.newsletter__form { display: flex; gap: 10px; flex: 0 1 460px; }
.newsletter__form input { flex: 1; min-width: 0; padding: 14px 20px; border-radius: 999px; border: 0; font: inherit; }
.newsletter__form input:focus { outline: 3px solid var(--cyan); }

/* footer */
.footer { background: #07050c; padding: 70px 0 30px; font-size: .9rem; }
.footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; }
.footer__about { color: #8f84a8; margin-top: 16px; }
.footer h4 { color: #fff; font-size: .95rem; margin: 0 0 14px; }
.footer__grid > div > a:not(.logo), .footer__grid > div > span { display: block; color: #8f84a8; margin-bottom: 8px; }
.footer__grid a:not(.logo):hover { color: var(--lavender); }
.footer__bottom { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; border-top: 1px solid var(--line-dark); margin-top: 50px; padding-top: 24px; color: #5f5775; font-size: .8rem; }

/* reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s, transform .7s; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 1180px) {
  .nav { display: none; }
  .burger { display: block; }
  .nav.is-open {
    display: flex; flex-direction: column; gap: 0; position: absolute; top: 74px; left: 0; right: 0;
    background: var(--ink); border-bottom: 1px solid var(--line-dark); padding: 10px 20px 20px;
  }
  .nav.is-open a { padding: 12px 0; border-bottom: 1px solid var(--line-dark); }
  .products { grid-template-columns: repeat(2, 1fr); }
  .platforms { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .hero { padding: 48px 0 0; min-height: 0; }
  .hero__visual { margin: 20px 0 0; }
  .hero__specs { grid-template-columns: repeat(2, 1fr); }
  .spec:nth-child(3) { padding-left: 0; border-left: 0; }
  .spec:nth-child(n+3) { border-top: 1px solid rgba(255, 255, 255, .1); }
  .hero__caption { right: 0; }
  .hero__grid, .tech { grid-template-columns: 1fr; }
  .tech { gap: 40px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .support { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .search { display: none; }
}
@media (max-width: 600px) {
  .container, .hero__grid, .hero__specs, .header__inner { width: calc(100% - 32px); }
  .header__tools .btn { display: none; }
  .hero h1 { font-size: 2rem; }
  .platforms { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .plat { min-height: 116px; padding: 16px; }
  .plat__code { font-size: 1.2rem; }
  .products { grid-template-columns: 1fr; }
  .checks { grid-template-columns: 1fr; }
  .spec b { font-size: 2rem; }
  .spec + .spec { padding-left: 16px; }
  .spec:nth-child(3) { padding-left: 0; }
  .hotspot::after { font-size: .72rem; padding: 5px 9px; left: 24px; opacity: 0; transition: opacity .2s; }
  .hotspot:focus::after, .hotspot:hover::after { opacity: 1; }
  .hotspot--left::after { left: auto; right: 24px; }
  .hotspot { width: 14px; height: 14px; margin: -7px 0 0 -7px; }
  .hero__caption { display: none; }
  .section { padding: 70px 0; }
  .section__head--row { flex-direction: column; align-items: flex-start; }
  .craft { height: 560px; }
  .craft img { width: 100%; object-position: center 60%; -webkit-mask-image: none; mask-image: none; }
  .craft__overlay { background: linear-gradient(0deg, rgba(12, 9, 20, .95) 20%, rgba(12, 9, 20, .3)); align-items: flex-end; padding-bottom: 40px; }
  .stat { padding: 22px 18px; }
  .stat b { font-size: 2.2rem; }
  .newsletter__form { flex: 1 1 100%; min-width: 0; }
  .newsletter__form input { width: 100%; }
  .footer__grid { grid-template-columns: 1fr; }
  .tech__bars { padding: 24px; }
  .bar { grid-template-columns: 70px 1fr 48px; gap: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .bar__fill { width: var(--w); }
}

/* ---------- i18n ---------- */
.i18n-loading body { opacity: 0; }
body { transition: opacity .2s; }
:root:lang(zh-Hans) { --sans: "Inter", "Noto Sans SC", system-ui, sans-serif; }
:root:lang(zh-Hant) { --sans: "Inter", "Noto Sans TC", system-ui, sans-serif; }
:root:lang(en) .hero h1 { letter-spacing: -.025em; }
:root:lang(en) .records__line, :root:lang(en) .tech h2, :root:lang(en) .craft h2 { letter-spacing: -.01em; }

.lang { position: relative; }
.lang__btn {
  display: inline-flex; align-items: center; gap: 6px; height: 36px; padding: 0 12px;
  background: transparent; color: #cfc6e2; border: 1px solid var(--line-dark); border-radius: 999px;
  font: 700 .8rem/1 var(--display); letter-spacing: .08em; cursor: pointer; transition: border-color .2s, color .2s;
}
.lang__btn:hover, .lang.is-open .lang__btn { color: #fff; border-color: var(--purple-400); }
.lang__btn svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.6; }
.lang__menu {
  position: absolute; right: 0; top: calc(100% + 10px); min-width: 180px; margin: 0; padding: 6px; list-style: none;
  background: var(--ink-2); border: 1px solid rgba(184, 101, 255, .35); border-radius: 12px;
  box-shadow: 0 20px 40px -12px rgba(0, 0, 0, .6);
  opacity: 0; visibility: hidden; transform: translateY(-6px); transition: .18s;
}
.lang.is-open .lang__menu { opacity: 1; visibility: visible; transform: none; }
.lang__menu button {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 10px 12px; border: 0; border-radius: 8px; background: none; color: #cfc6e2; font: 500 .9rem var(--sans); cursor: pointer; text-align: left;
}
.lang__menu button:lang(zh-Hans) { font-family: "Noto Sans SC", sans-serif; }
.lang__menu button:lang(zh-Hant) { font-family: "Noto Sans TC", sans-serif; }
.lang__menu button:hover { background: rgba(160, 44, 245, .18); color: #fff; }
.lang__menu button[aria-selected="true"] { color: #fff; }
.lang__menu button[aria-selected="true"] small { background: var(--purple); color: #fff; }
.lang__menu small { font: 700 .7rem/1 var(--display); letter-spacing: .06em; padding: 4px 6px; border-radius: 4px; background: var(--ink-3); color: #8f84a8; }

@media (max-width: 1440px) { .search { display: none; } }
@media (max-width: 600px) {
  .header__tools { gap: 6px; }
  .lang__btn { padding: 0 10px; height: 32px; }
  .lang__btn svg { display: none; }
  .logo img { height: 28px; }
}
@media (max-width: 600px) {
  .lang { position: static; }
  .lang__menu { right: 16px; top: 64px; }
}