/* ==========================================================================
   VESPERA / RELIC PROTOCOL
   Cyber-gothic enhancement layer — loaded after style.css
   ========================================================================== */

@font-face {
  font-family: "IBM Plex Mono";
  src: url("../fonts/ibm-plex-mono-400.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("../fonts/ibm-plex-mono-500.woff2") format("woff2");
  font-style: normal;
  font-weight: 500;
  font-display: swap;
}

:root {
  --mono: "IBM Plex Mono", "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  --red: #9f1121;
  --red-bright: #d51b2d;
  --red-hot: #ff283c;
  --ivory: #f1ece4;
  --ivory-dim: #cfc6bb;
  --silver: #c7bfb3;
  --muted: #9d9287;
  --muted-dark: #857a6f;
  --line: rgba(241, 236, 228, 0.15);
  --line-soft: rgba(241, 236, 228, 0.075);
  --line-strong: rgba(241, 236, 228, 0.34);
  --tech-line: rgba(204, 24, 43, 0.44);
  --header-h: 94px;
  --pad: clamp(20px, 4.2vw, 66px);
}

body {
  background: #060405;
}

::selection {
  background: var(--red-hot);
  color: #080506;
}

/* --- system overlays ----------------------------------------------------- */

.tech-grid {
  position: fixed;
  inset: 0;
  z-index: 53;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    linear-gradient(to right, rgba(241, 236, 228, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(241, 236, 228, 0.045) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 46%, #000 15%, transparent 78%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 46%, #000 15%, transparent 78%);
}

.tech-scanlines {
  position: fixed;
  inset: 0;
  z-index: 54;
  pointer-events: none;
  opacity: 0.26;
  background: repeating-linear-gradient(to bottom, transparent 0, transparent 4px, rgba(255, 255, 255, 0.022) 4px, rgba(255, 255, 255, 0.022) 5px);
  mix-blend-mode: screen;
}

.site-noise {
  z-index: 56;
}

.site-vignette {
  z-index: 55;
}

.signal-dot,
.status-dot,
.live-dot {
  display: inline-block;
  flex: none;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--red-hot);
  box-shadow: 0 0 0 3px rgba(255, 40, 60, 0.09), 0 0 12px rgba(255, 40, 60, 0.65);
  animation: signalPulse 2.8s ease-in-out infinite;
}

@keyframes signalPulse {
  0%, 100% { opacity: 0.35; }
  48% { opacity: 1; }
  64% { opacity: 0.55; }
}

/* --- global tech typography --------------------------------------------- */

.eyebrow {
  font-family: var(--mono);
  font-size: 0.54rem;
  font-weight: 400;
  letter-spacing: 0.17em;
  color: var(--muted);
}

.eyebrow-number {
  color: var(--red-hot);
  font-family: var(--mono);
  letter-spacing: 0.05em;
}

.eyebrow-rule {
  width: 28px;
  background: var(--tech-line);
}

.eyebrow-slash {
  color: var(--red);
}

:is(.eyebrow, .utility-strip, .primary-nav, .language-toggle, .bag-trigger, .button, .text-link, .product-category, .product-tags, .card-badge, .card-status, .hotspot, .hero-kicker, .hero-data-row, .hero-underbar, .hero-topline, .section-rail, .title-data, .process-list, .newsletter-meta, .menu-footer, .footer-techbar, .footer-systemline, .footer-bottom, .search-sheet, .cart-sheet, .product-dialog-content) .lang-zh {
  font-family: var(--cn-sans);
  letter-spacing: 0.05em;
}

.section {
  padding-block: clamp(96px, 12vw, 170px);
}

section[id],
footer[id] {
  scroll-margin-top: calc(var(--header-h) + 22px);
}

.shell {
  max-width: 1580px;
}

.section-title {
  font-size: clamp(3.6rem, 7vw, 7.6rem);
  line-height: 0.89;
  letter-spacing: -0.045em;
}

.section-title em {
  color: var(--silver);
}

html[data-lang="zh"] .section-title {
  font-size: clamp(2.8rem, 5.5vw, 5.8rem);
  line-height: 1.16;
  letter-spacing: 0.04em;
}

html[data-lang="zh"] .section-title em {
  color: var(--red-bright);
}

.text-link {
  gap: 12px;
  padding-bottom: 7px;
  font-family: var(--mono);
  font-size: 0.57rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--ivory-dim);
}

.text-link::before {
  color: var(--red-bright);
  content: "/";
  font-family: var(--mono);
  font-size: 0.8em;
}

.text-link:hover {
  color: var(--ivory);
}

.text-link svg {
  width: 18px;
  height: 9px;
}

.button {
  position: relative;
  min-height: 46px;
  padding: 13px 24px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: rgba(10, 7, 8, 0.38);
  color: var(--ivory);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.button::before,
.button::after {
  position: absolute;
  width: 7px;
  height: 1px;
  background: var(--red-bright);
  content: "";
  pointer-events: none;
}

.button::before {
  top: 6px;
  left: 6px;
}

.button::after {
  right: 6px;
  bottom: 6px;
}

.button:hover {
  border-color: var(--ivory);
  background: var(--ivory);
  color: #070506;
}

.button--primary {
  border-color: rgba(255, 65, 82, 0.62);
  background: linear-gradient(110deg, #780914, #b00f22 56%, #6e0711);
  color: var(--ivory);
  box-shadow: inset 0 0 0 1px rgba(255, 184, 180, 0.08), 0 12px 32px rgba(106, 6, 18, 0.26);
}

.button--primary::before,
.button--primary::after {
  background: var(--ivory);
  opacity: 0.7;
}

.button--primary:hover {
  border-color: var(--ivory);
  background: var(--ivory);
  color: #070506;
}

.button--solid {
  border-color: var(--red-hot);
  background: var(--red-bright);
  color: #fff;
  box-shadow: 0 8px 30px rgba(149, 8, 23, 0.28);
}

/* --- header -------------------------------------------------------------- */

.site-header.site-header--tech {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 0;
  height: auto;
  padding: 0;
  border: 0;
  background: linear-gradient(180deg, rgba(6, 4, 5, 0.97) 0%, rgba(6, 4, 5, 0.85) 100%);
  -webkit-backdrop-filter: blur(18px) saturate(115%);
  backdrop-filter: blur(18px) saturate(115%);
}

.site-header--tech::after {
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(218, 28, 47, 0.32) 18%, var(--line-soft) 51%, rgba(218, 28, 47, 0.22) 84%, transparent);
  opacity: 1;
}

.utility-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 26px;
  padding-inline: var(--pad);
  border-bottom: 1px solid rgba(241, 236, 228, 0.06);
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 0.47rem;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  transition: height 0.4s var(--ease), opacity 0.35s ease, border-color 0.4s ease;
}

.utility-cell {
  display: flex;
  align-items: center;
  gap: 9px;
  white-space: nowrap;
}

.utility-left {
  color: var(--ivory-dim);
}

.utility-brand {
  color: var(--ivory);
  letter-spacing: 0.13em;
}

.utility-dim {
  color: var(--muted-dark);
}

.utility-slash {
  color: var(--red);
}

.utility-center {
  position: absolute;
  top: 0;
  left: 50%;
  height: 26px;
  transform: translateX(-50%);
}

.utility-line {
  width: 28px;
  height: 1px;
  background: var(--line);
}

.utility-clock {
  color: var(--ivory-dim);
  font-variant-numeric: tabular-nums;
}

.utility-right {
  color: var(--ivory-dim);
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: 68px;
  padding-inline: var(--pad);
  transition: height 0.4s var(--ease);
}

.site-header--tech.is-scrolled {
  height: auto;
  background: rgba(6, 4, 5, 0.94);
}

.site-header--tech.is-scrolled .utility-strip {
  height: 0;
  overflow: hidden;
  border-color: transparent;
  opacity: 0;
}

.site-header--tech.is-scrolled .header-main {
  height: 62px;
}

.site-header--tech .brand {
  gap: 13px;
}

.site-header--tech .brand-mark {
  width: 21px;
  height: 24px;
  color: var(--ivory);
}

.site-header--tech .brand-name {
  font-size: 0.88rem;
  letter-spacing: 0.29em;
}

.site-header--tech .brand-sub {
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 0.4rem;
  letter-spacing: 0.17em;
}

.primary-nav {
  gap: clamp(23px, 2.7vw, 48px);
  margin-left: auto;
  margin-right: clamp(18px, 3.8vw, 58px);
}

.primary-nav a {
  padding-block: 9px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.16em;
}

.primary-nav a::before {
  position: absolute;
  top: -1px;
  left: 50%;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: var(--red-hot);
  content: "";
  opacity: 0;
  transform: translateX(-50%);
  transition: opacity 0.3s ease;
}

.primary-nav a:hover,
.primary-nav a.is-active {
  color: var(--ivory);
}

.primary-nav a.is-active::before {
  opacity: 1;
}

.primary-nav a::after {
  height: 1px;
  background: var(--red);
}

.header-actions {
  gap: clamp(10px, 1.15vw, 18px);
}

.bag-trigger {
  font-family: var(--mono);
  font-size: 0.54rem;
  letter-spacing: 0.12em;
}

.bag-trigger > svg {
  width: 17px;
  height: 17px;
}

.language-toggle {
  height: 30px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}

.language-toggle button {
  height: 28px;
  padding-inline: 9px;
  border-radius: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.51rem;
  letter-spacing: 0.04em;
}

.language-toggle button.is-active {
  background: var(--ivory);
  color: #070506;
}

.language-rule {
  height: 12px;
  margin-inline: 0;
  background: var(--line);
}

.menu-trigger > span:not(.sr-only) {
  width: 17px;
  height: 1px;
  background: var(--ivory-dim);
}

/* --- hero ---------------------------------------------------------------- */

.protocol-hero {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100svh;
  padding: calc(var(--header-h) + 8px) var(--pad) 18px;
  overflow: hidden;
  isolation: isolate;
}

.protocol-hero::before {
  position: absolute;
  top: 22%;
  left: 50%;
  z-index: -1;
  width: min(94vw, 1400px);
  aspect-ratio: 1.4;
  background: radial-gradient(ellipse, rgba(126, 8, 19, 0.16), transparent 68%);
  filter: blur(30px);
  content: "";
  transform: translateX(-50%);
  pointer-events: none;
}

.protocol-hero::after {
  position: absolute;
  top: var(--header-h);
  right: var(--pad);
  left: var(--pad);
  z-index: -1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-soft), transparent);
  content: "";
}

.hero-topline {
  display: none;
}

.banner-frame {
  position: relative;
  width: min(calc(100vw - (var(--pad) * 2)), calc((100svh - 200px) * 16 / 9), 1720px);
  aspect-ratio: 16 / 9;
  margin-inline: auto;
  overflow: hidden;
  border: 1px solid rgba(241, 236, 228, 0.18);
  background: #070506;
  box-shadow: 0 35px 100px rgba(0, 0, 0, 0.46);
}

.banner-media {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
}

.banner-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 50%;
  transform: scale(1);
  filter: brightness(1.025) saturate(0.95) contrast(1.035);
  transition: filter 1.2s ease;
}

.banner-frame:hover .banner-image {
  filter: saturate(1) contrast(1.03) brightness(1.015);
}

.banner-vignette {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    linear-gradient(90deg, rgba(5, 4, 5, 0.92) 0%, rgba(5, 4, 5, 0.45) 34%, rgba(5, 4, 5, 0.02) 63%, rgba(5, 4, 5, 0.34) 100%),
    linear-gradient(180deg, rgba(5, 4, 5, 0.62) 0%, rgba(5, 4, 5, 0.02) 35%, rgba(5, 4, 5, 0.02) 74%, rgba(5, 4, 5, 0.64) 100%);
  pointer-events: none;
}

.banner-grid {
  position: absolute;
  inset: 0;
  z-index: 3;
  opacity: 0.32;
  background-image:
    linear-gradient(to right, rgba(241, 236, 228, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(241, 236, 228, 0.055) 1px, transparent 1px);
  background-size: 9% 13%;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 16%, #000 82%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 16%, #000 82%, transparent 100%);
  pointer-events: none;
}

.banner-scan {
  position: absolute;
  top: -20%;
  left: 0;
  z-index: 4;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 58, 74, 0.6), rgba(255, 224, 210, 0.5), rgba(255, 58, 74, 0.65), transparent);
  box-shadow: 0 0 16px rgba(231, 24, 43, 0.45);
  opacity: 0.55;
  pointer-events: none;
  animation: bannerScan 11s linear infinite;
}

@keyframes bannerScan {
  0% { top: 9%; opacity: 0; }
  12% { opacity: 0.5; }
  52% { opacity: 0.3; }
  100% { top: 86%; opacity: 0; }
}

.banner-light {
  position: absolute;
  inset: 0;
  z-index: 3;
  background: radial-gradient(circle 280px at var(--mx, 50%) var(--my, 45%), rgba(255, 214, 198, 0.1), transparent 72%);
  mix-blend-mode: screen;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.banner-copy {
  position: absolute;
  top: clamp(26px, 5.2vh, 68px);
  left: clamp(24px, 4.3vw, 64px);
  z-index: 6;
  width: min(50%, 620px);
  pointer-events: none;
}

.banner-copy a,
.banner-copy button {
  pointer-events: auto;
}

.hero-kicker {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--ivory-dim);
  font-family: var(--mono);
  font-size: 0.52rem;
  line-height: 1.4;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.kicker-mark {
  display: inline-block;
  width: 9px;
  height: 9px;
  border: 1px solid var(--red-bright);
  transform: rotate(45deg);
  box-shadow: 0 0 10px rgba(226, 30, 48, 0.35);
}

.protocol-title {
  max-width: 730px;
  margin-top: clamp(14px, 2vh, 25px);
  color: var(--ivory);
  font-family: var(--display);
  font-size: clamp(3.8rem, 6.4vw, 8.2rem);
  font-weight: 300;
  line-height: 0.82;
  letter-spacing: -0.055em;
  text-shadow: 0 16px 54px rgba(0, 0, 0, 0.6);
  text-wrap: balance;
}

.protocol-title em {
  color: var(--red-bright);
  font-style: italic;
  font-weight: 300;
  letter-spacing: -0.032em;
  text-shadow: 0 0 50px rgba(203, 20, 38, 0.24);
}

html[data-lang="zh"] .protocol-title {
  max-width: 650px;
  font-family: var(--cn-serif);
  font-size: clamp(3.1rem, 5.2vw, 6.2rem);
  font-weight: 400;
  line-height: 1.16;
  letter-spacing: 0.06em;
}

html[data-lang="zh"] .protocol-title em {
  color: var(--red-bright);
  font-style: normal;
}

.protocol-deck {
  max-width: 390px;
  margin-top: clamp(16px, 2.4vh, 27px);
  color: #b4a99d;
  font-size: 0.79rem;
  font-weight: 300;
  line-height: 1.8;
  letter-spacing: 0.025em;
}

html[data-lang="zh"] .protocol-deck {
  max-width: 410px;
  font-size: 0.87rem;
  line-height: 2;
  letter-spacing: 0.055em;
}

.banner-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 13px 22px;
  margin-top: clamp(18px, 2.6vh, 29px);
}

.banner-scanlink {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ivory-dim);
  font-family: var(--mono);
  font-size: 0.53rem;
  line-height: 1.4;
  letter-spacing: 0.08em;
  transition: color 0.25s ease;
}

.banner-scanlink:hover {
  color: var(--ivory);
}

.scanlink-mark {
  display: grid;
  width: 17px;
  height: 17px;
  place-items: center;
  border: 1px solid var(--line);
  color: var(--red-hot);
  font-family: var(--sans);
  font-size: 0.8rem;
  line-height: 1;
}

.scanlink-price {
  padding-left: 8px;
  border-left: 1px solid var(--line);
  color: var(--ivory);
  font-family: var(--mono);
  font-size: 0.53rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.hero-data-row {
  display: none;
}

/* hotspots */

.banner-hotspots {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
}

.hotspot {
  position: absolute;
  display: block;
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--ivory);
  transform: translate(-50%, -50%);
  pointer-events: auto;
}

.hotspot--cross {
  top: 51%;
  left: 52%;
}

.hotspot--choker {
  top: 73%;
  left: 24%;
}

.hotspot--ring {
  top: 73%;
  left: 75%;
}

.hotspot-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 7px;
  height: 7px;
  border: 1px solid rgba(255, 243, 232, 0.8);
  border-radius: 50%;
  background: rgba(8, 5, 6, 0.55);
  box-shadow: 0 0 0 5px rgba(255, 50, 65, 0.08), 0 0 18px rgba(255, 36, 52, 0.32);
  transform: translate(-50%, -50%);
  transition: background-color 0.25s ease, box-shadow 0.25s ease;
}

.hotspot-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 22px;
  height: 22px;
  border: 1px solid rgba(228, 34, 52, 0.34);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: hotspotPulse 3.6s ease-out infinite;
}

@keyframes hotspotPulse {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
  20% { opacity: 0.7; }
  70% { opacity: 0; transform: translate(-50%, -50%) scale(1.9); }
  100% { opacity: 0; }
}

.hotspot-copy {
  position: absolute;
  top: -6px;
  left: 26px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 8px;
  min-width: 132px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  background: rgba(7, 5, 6, 0.72);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  text-align: left;
  transform: translateY(3px);
  transition: border-color 0.3s ease, background-color 0.3s ease, transform 0.3s var(--ease);
  opacity: 0.84;
}

.hotspot-copy--left {
  right: 26px;
  left: auto;
  text-align: right;
}

.hotspot-copy--right {
  top: 9px;
}

.hotspot:hover .hotspot-copy,
.hotspot:focus-visible .hotspot-copy {
  border-color: var(--tech-line);
  background: rgba(10, 7, 8, 0.9);
  transform: translateY(0);
  opacity: 1;
}

.hotspot-index {
  grid-row: 1 / span 2;
  align-self: center;
  color: var(--red-hot);
  font-family: var(--mono);
  font-size: 0.47rem;
}

.hotspot-name {
  color: var(--ivory);
  font-family: var(--mono);
  font-size: 0.53rem;
  line-height: 1.4;
  letter-spacing: 0.035em;
}

.hotspot-spec {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.44rem;
  line-height: 1.3;
  letter-spacing: 0.03em;
}

.banner-bottom-hud {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 13% 10px;
  border-top: 1px solid rgba(241, 236, 228, 0.13);
  background: linear-gradient(180deg, transparent, rgba(5, 4, 5, 0.76));
  color: rgba(207, 198, 187, 0.55);
  font-family: var(--mono);
  font-size: 0.44rem;
  line-height: 1.4;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.banner-bottom-hud span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.banner-bottom-hud .signal-dot {
  width: 4px;
  height: 4px;
}

.banner-rec {
  position: absolute;
  top: clamp(24px, 4.6%, 48px);
  right: clamp(24px, 4.3vw, 64px);
  z-index: 6;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-right: 13px;
  border-right: 1px solid var(--tech-line);
  color: rgba(207, 198, 187, 0.56);
  font-family: var(--mono);
  font-size: 0.42rem;
  line-height: 1.5;
  letter-spacing: 0.075em;
  text-align: right;
  text-transform: uppercase;
  pointer-events: none;
}

.rec-status {
  color: var(--ivory-dim);
}

.rec-status i {
  display: inline-block;
  width: 4px;
  height: 4px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--red-hot);
  box-shadow: 0 0 8px rgba(255, 40, 60, 0.65);
  animation: signalPulse 2.8s ease-in-out infinite;
}

.banner-side-label {
  position: absolute;
  top: 38%;
  right: 18px;
  z-index: 4;
  display: flex;
  gap: 24px;
  color: rgba(241, 236, 228, 0.44);
  font-family: var(--mono);
  font-size: 0.43rem;
  line-height: 1.5;
  letter-spacing: 0.12em;
  writing-mode: vertical-rl;
  text-transform: uppercase;
}

.banner-side-label span:last-child {
  color: var(--muted-dark);
}

.frame-corner {
  position: absolute;
  z-index: 7;
  width: 18px;
  height: 18px;
  border-color: rgba(241, 236, 228, 0.52);
  border-style: solid;
  pointer-events: none;
}

.frame-corner--tl { top: 11px; left: 11px; border-width: 1px 0 0 1px; }
.frame-corner--tr { top: 11px; right: 11px; border-width: 1px 1px 0 0; }
.frame-corner--bl { bottom: 11px; left: 11px; border-width: 0 0 1px 1px; }
.frame-corner--br { right: 11px; bottom: 11px; border-width: 0 1px 1px 0; }

.frame-rule {
  position: absolute;
  z-index: 7;
  height: 4px;
  border-left: 1px solid var(--red-bright);
  border-right: 1px solid var(--red-bright);
  pointer-events: none;
  opacity: 0.7;
}

.frame-rule--top {
  top: 10px;
  left: calc(50% - 14px);
  width: 28px;
  border-top: 1px solid var(--red-bright);
}

.frame-rule--bottom {
  right: calc(50% - 14px);
  bottom: 10px;
  width: 28px;
  border-bottom: 1px solid var(--red-bright);
}

.hero-underbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(calc(100vw - (var(--pad) * 2)), calc((100svh - 200px) * 16 / 9), 1720px);
  margin: 12px auto 0;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 0.47rem;
  line-height: 1.5;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-scroll {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ivory-dim);
}

.scroll-line {
  display: inline-block;
  width: 34px;
  height: 1px;
  background: linear-gradient(90deg, var(--red), transparent);
  animation: scrollLine 2.6s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { opacity: 0.25; transform: scaleX(0.55); transform-origin: left; }
  50% { opacity: 1; transform: scaleX(1); transform-origin: left; }
}

.hero-underbar-center {
  color: var(--muted);
}

/* --- signal ticker ------------------------------------------------------- */

.signal-strip {
  position: relative;
  z-index: 2;
  overflow: hidden;
  height: 54px;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: #080506;
}

.signal-strip::before,
.signal-strip::after {
  position: absolute;
  top: 0;
  bottom: 0;
  z-index: 2;
  width: clamp(28px, 7vw, 130px);
  content: "";
  pointer-events: none;
}

.signal-strip::before {
  left: 0;
  background: linear-gradient(90deg, #080506, transparent);
}

.signal-strip::after {
  right: 0;
  background: linear-gradient(-90deg, #080506, transparent);
}

.signal-track {
  display: flex;
  width: max-content;
  height: 100%;
  animation: marquee 52s linear infinite;
}

.signal-strip:hover .signal-track {
  animation-play-state: paused;
}

.signal-group {
  display: flex;
  align-items: center;
  gap: 27px;
  height: 100%;
  padding-left: 27px;
  white-space: nowrap;
}

.signal-group > span:not(.signal-code) {
  color: var(--ivory-dim);
  font-family: var(--mono);
  font-size: 0.52rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.signal-code {
  color: var(--red-bright);
  font-family: var(--mono);
  font-size: 0.48rem;
  letter-spacing: 0.08em;
}

.signal-group i {
  color: var(--red);
  font-size: 0.55rem;
  font-style: normal;
}

/* --- section furniture --------------------------------------------------- */

.section-rail {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: clamp(34px, 5vw, 64px);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.47rem;
  line-height: 1.5;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.rail-index {
  color: var(--red-hot);
  letter-spacing: 0.06em;
}

.rail-name {
  color: var(--ivory-dim);
}

.rail-line {
  flex: 1;
  height: 1px;
  max-width: 74px;
  background: var(--tech-line);
}

.rail-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted-dark);
  white-space: nowrap;
}

.section-rail--center {
  justify-content: center;
  text-align: center;
}

.section-rail--center .rail-line {
  max-width: 42px;
  flex: 0 0 42px;
}

.section-watermark {
  position: absolute;
  top: 2%;
  right: -1.5%;
  z-index: 0;
  color: transparent;
  font-family: var(--display);
  font-size: clamp(20rem, 38vw, 40rem);
  font-weight: 300;
  line-height: 0.8;
  letter-spacing: -0.08em;
  -webkit-text-stroke: 1px rgba(241, 236, 228, 0.055);
  pointer-events: none;
  user-select: none;
}

.section-watermark--right {
  right: 1%;
}

.title-data {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 24px;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 0.43rem;
  line-height: 1.5;
  letter-spacing: 0.09em;
}

.section-heading {
  position: relative;
  z-index: 1;
}

.section-heading-aside {
  border-top-color: var(--tech-line);
}

.section-intro {
  color: var(--ivory-dim);
}

/* --- collection ---------------------------------------------------------- */

.archive-section {
  background:
    radial-gradient(ellipse 45% 40% at 77% 22%, rgba(86, 8, 17, 0.24), transparent 72%),
    linear-gradient(180deg, #060405, #080506 48%, #060405);
}

.product-grid--archive {
  gap: 1px;
  padding: 1px;
  border: 1px solid var(--line-soft);
  background: var(--line-soft);
}

.product-card--relic {
  position: relative;
  background: #070506;
  padding: clamp(12px, 1.4vw, 20px);
}

.product-visual--photo {
  border: 1px solid rgba(241, 236, 228, 0.16);
  background: #090607;
  aspect-ratio: 4 / 5;
}

.product-visual--photo::before {
  z-index: 2;
  background:
    linear-gradient(180deg, rgba(5, 4, 5, 0.28), transparent 25%, transparent 72%, rgba(5, 4, 5, 0.55)),
    radial-gradient(ellipse 70% 50% at 50% 68%, transparent 30%, rgba(4, 3, 4, 0.25));
  opacity: 1;
}

.product-visual--photo::after {
  z-index: 2;
  background: linear-gradient(110deg, transparent 32%, rgba(255, 213, 199, 0.075) 46%, transparent 58%);
  opacity: 0;
  transform: translateX(-25%);
  transition: opacity 0.5s ease;
}

.product-visual--photo:hover::after,
.product-visual--photo:focus-visible::after {
  opacity: 1;
}

.product-visual--photo img {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  padding: 0;
  object-fit: cover;
  object-position: 50% 50%;
  filter: brightness(1.09) contrast(1.035) saturate(1.02);
  transition: transform 1.2s var(--ease), filter 0.8s ease;
}

.product-visual--photo:hover img {
  transform: scale(1.035);
  filter: brightness(1.14) contrast(1.04) saturate(1.03);
}

.visual-grid {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0.22;
  background-image:
    linear-gradient(to right, rgba(241, 236, 228, 0.075) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(241, 236, 228, 0.06) 1px, transparent 1px);
  background-size: 25% 20%;
  pointer-events: none;
  mix-blend-mode: screen;
}

.visual-crosshair {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  width: 18px;
  height: 18px;
  opacity: 0;
  border: 1px solid rgba(241, 236, 228, 0.4);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.visual-crosshair::before,
.visual-crosshair::after {
  position: absolute;
  top: 50%;
  left: 50%;
  background: rgba(241, 236, 228, 0.4);
  content: "";
}

.visual-crosshair::before {
  width: 30px;
  height: 1px;
  transform: translate(-50%, -50%);
}

.visual-crosshair::after {
  width: 1px;
  height: 30px;
  transform: translate(-50%, -50%);
}

.product-visual--photo:hover .visual-crosshair {
  opacity: 0.7;
}

.visual-scanline {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 3;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 52, 69, 0.8), transparent);
  opacity: 0;
  pointer-events: none;
}

.product-visual--photo:hover .visual-scanline {
  opacity: 0.6;
  animation: cardScan 2.4s linear infinite;
}

@keyframes cardScan {
  0% { top: 0; opacity: 0; }
  12% { opacity: 0.6; }
  85% { opacity: 0.4; }
  100% { top: 100%; opacity: 0; }
}

.product-visual--photo .card-index {
  top: 13px;
  left: 13px;
  color: var(--ivory);
  font-family: var(--mono);
  font-size: 0.53rem;
  font-style: normal;
  letter-spacing: 0.04em;
}

.product-visual--photo .card-badge {
  top: 12px;
  right: 12px;
  padding: 4px 7px;
  border-color: var(--tech-line);
  color: var(--ivory-dim);
  font-family: var(--mono);
  font-size: 0.43rem;
  letter-spacing: 0.09em;
}

.card-status {
  position: absolute;
  bottom: 14px;
  left: 13px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(241, 236, 228, 0.5);
  font-family: var(--mono);
  font-size: 0.42rem;
  letter-spacing: 0.08em;
}

.card-status i {
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--red-hot);
  box-shadow: 0 0 8px rgba(255, 40, 60, 0.65);
}

.product-visual--photo .card-view {
  right: 12px;
  bottom: 12px;
  border-color: rgba(241, 236, 228, 0.22);
  font-family: var(--mono);
  font-size: 0.46rem;
  letter-spacing: 0.06em;
  background: rgba(5, 4, 5, 0.7);
  opacity: 0.7;
  transform: translateY(0);
}

.product-visual--photo:hover .card-view,
.product-visual--photo:focus-visible .card-view {
  opacity: 1;
}

.card-view-cross {
  color: var(--red-hot);
}

.product-card--relic .product-details {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: start;
  padding: 18px 3px 21px;
  border-bottom: 1px solid var(--line-soft);
}

.product-card--relic .product-category {
  color: var(--red-hot);
  font-family: var(--mono);
  font-size: 0.45rem;
  letter-spacing: 0.12em;
}

.product-card--relic .product-details h3 {
  margin-top: 8px;
  font-size: clamp(1.5rem, 2.1vw, 2rem);
}

.product-card--relic .product-material {
  color: var(--muted);
  font-size: 0.65rem;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  margin-top: 11px;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 0.4rem;
  line-height: 1.4;
  letter-spacing: 0.075em;
}

.product-tags span {
  position: relative;
}

.product-tags span + span::before {
  margin-right: 10px;
  color: var(--red);
  content: "/";
}

.product-card--relic .product-price {
  padding-top: 0;
  color: var(--ivory);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.product-card--relic .product-price .lang-zh {
  font-family: var(--mono);
  letter-spacing: 0.01em;
}

:is(.config-status, .seal-status, .seal-engraving-label, .form-note, .field-note, .commission-from, .newsletter-meta, .footer-bottom, .collection-foot) .lang-zh {
  font-family: var(--cn-sans);
  letter-spacing: 0.04em;
}

.collection-foot {
  margin-top: clamp(40px, 6vw, 70px);
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 0.44rem;
  line-height: 1.6;
  letter-spacing: 0.08em;
}

.collection-count {
  color: var(--red-hot);
}

.collection-rule {
  background: var(--line-soft);
}

/* --- manifesto ----------------------------------------------------------- */

.manifesto--tech {
  min-height: 620px;
  padding-block: clamp(95px, 12vw, 160px);
  border-top-color: var(--line-soft);
  border-bottom-color: var(--line-soft);
  background:
    radial-gradient(ellipse 43% 65% at 50% 54%, rgba(95, 7, 16, 0.3), transparent 72%),
    #060405;
}

.manifesto-bg-grid {
  position: absolute;
  inset: 0;
  opacity: 0.38;
  background-image:
    linear-gradient(to right, rgba(241, 236, 228, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(241, 236, 228, 0.04) 1px, transparent 1px);
  background-size: 7.5% 20%;
  -webkit-mask-image: radial-gradient(ellipse 55% 65% at 50% 50%, transparent 5%, #000 82%);
  mask-image: radial-gradient(ellipse 55% 65% at 50% 50%, transparent 5%, #000 82%);
  pointer-events: none;
}

.manifesto--tech .manifesto-mark {
  width: min(54vw, 540px);
  opacity: 0.3;
}

.manifesto--tech .manifesto-mark svg {
  stroke: rgba(208, 25, 44, 0.8);
  stroke-width: 0.55;
  animation-duration: 180s;
}

.manifesto-orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(241, 236, 228, 0.08);
  border-radius: 50%;
  pointer-events: none;
}

.manifesto-orbit--outer {
  width: min(72vw, 760px);
  aspect-ratio: 1;
  transform: translate(-50%, -50%) scaleY(0.42);
}

.manifesto-orbit--inner {
  width: min(48vw, 500px);
  aspect-ratio: 1;
  border-color: rgba(202, 27, 45, 0.15);
  border-style: dashed;
  transform: translate(-50%, -50%) rotate(-12deg) scaleY(0.72);
}

.manifesto-tick {
  position: absolute;
  z-index: 1;
  width: 1px;
  height: 26px;
  background: linear-gradient(to bottom, transparent, var(--tech-line), transparent);
}

.manifesto-tick--n { top: 7%; left: 50%; }
.manifesto-tick--s { bottom: 7%; left: 50%; }
.manifesto-tick--e { top: 50%; right: 5%; width: 26px; height: 1px; background: linear-gradient(to right, transparent, var(--tech-line), transparent); }
.manifesto-tick--w { top: 50%; left: 5%; width: 26px; height: 1px; background: linear-gradient(to left, transparent, var(--tech-line), transparent); }

.manifesto--tech .manifesto-inner {
  z-index: 3;
}

.manifesto-core {
  position: relative;
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: 36px;
}

.manifesto--tech h2 {
  max-width: 1000px;
  margin: 0 auto;
  font-size: clamp(2.7rem, 5.2vw, 5.6rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.manifesto--tech h2 em {
  color: var(--red-hot);
  font-style: italic;
}

html[data-lang="zh"] .manifesto--tech h2 {
  font-size: clamp(2.2rem, 4.4vw, 4.4rem);
  line-height: 1.48;
  letter-spacing: 0.04em;
}

.manifesto-core .quote-mark {
  position: absolute;
  top: -44px;
  left: 0;
  color: var(--red-hot);
  font-family: var(--display);
  font-size: 5rem;
  font-style: italic;
  line-height: 1;
  opacity: 0.8;
}

.manifesto-core .quote-mark--close {
  top: auto;
  right: 0;
  bottom: -74px;
  left: auto;
}

.manifesto-metrics {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  max-width: 720px;
  margin: clamp(36px, 5vw, 62px) auto 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.manifesto-metrics > span {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 6px;
  padding: 14px 20px;
  border-right: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 0.42rem;
  line-height: 1.5;
  letter-spacing: 0.09em;
  text-align: left;
}

.manifesto-metrics > span:last-child {
  border-right: 0;
}

.manifesto-metrics i {
  color: var(--muted-dark);
  font-style: normal;
}

.manifesto-metrics b {
  color: var(--ivory-dim);
  font-weight: 400;
}

.manifesto-signature {
  margin-top: 27px;
  font-family: var(--mono);
  font-size: 0.46rem;
  letter-spacing: 0.1em;
}

.manifesto-coord {
  position: absolute;
  top: 50%;
  z-index: 2;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 0.43rem;
  line-height: 1.7;
  letter-spacing: 0.09em;
  writing-mode: vertical-rl;
  transform: translateY(-50%);
}

.manifesto-coord--left {
  left: var(--pad);
}

.manifesto-coord--right {
  right: var(--pad);
}

/* --- atelier ------------------------------------------------------------- */

.atelier {
  background:
    radial-gradient(ellipse 34% 50% at 86% 40%, rgba(94, 7, 16, 0.2), transparent 74%),
    #060405;
}

.atelier-grid {
  position: relative;
  z-index: 1;
  align-items: start;
}

.atelier-copy {
  position: static;
  padding-top: 0;
}

.atelier-body {
  color: #ab9f93;
  font-size: 0.84rem;
}

.atelier-body .lead {
  color: var(--ivory-dim);
}

.atelier-stats {
  max-width: 560px;
  margin-top: 39px;
  padding-top: 16px;
  border-top-color: var(--tech-line);
}

.atelier-stats > div {
  gap: 5px;
  padding-right: 13px;
  border-right: 1px solid var(--line-soft);
}

.atelier-stats > div:last-child {
  border-right: 0;
}

.atelier-stats dt {
  color: var(--ivory);
  font-family: var(--display);
  font-size: clamp(1.9rem, 2.6vw, 2.8rem);
}

.atelier-stats dt small {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.36em;
  letter-spacing: 0.01em;
}

.atelier-stats dd {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.48rem;
  letter-spacing: 0.07em;
}

.process-list {
  max-width: 560px;
  margin-top: 28px;
  border-top: 1px solid var(--line-soft);
}

.process-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 34px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--ivory-dim);
  font-family: var(--mono);
  font-size: 0.5rem;
  line-height: 1.5;
  letter-spacing: 0.04em;
}

.process-num {
  color: var(--red-hot);
  font-size: 0.45rem;
}

.process-state {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-left: auto;
  color: var(--muted-dark);
  font-size: 0.4rem;
  letter-spacing: 0.05em;
}

.process-state i {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--red);
}

.atelier-copy .text-link--large {
  margin-top: 33px;
}

.atelier-visual--photo {
  min-height: clamp(580px, 59vw, 820px);
  background: #090607;
}

.atelier-visual--photo .atelier-image-wrap img {
  position: absolute;
  inset: 0;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 52% 55%;
  filter: brightness(0.82) contrast(1.06) saturate(0.82);
  transform: none;
}

.atelier-visual--photo .atelier-image-wrap::before {
  z-index: 2;
  background:
    linear-gradient(180deg, rgba(5, 4, 5, 0.46), transparent 33%, transparent 60%, rgba(5, 4, 5, 0.82) 100%),
    linear-gradient(90deg, rgba(5, 4, 5, 0.28), transparent 35%, transparent 72%, rgba(5, 4, 5, 0.3));
}

.macro-grid {
  position: absolute;
  inset: 0;
  z-index: 3;
  opacity: 0.28;
  background-image:
    linear-gradient(to right, rgba(241, 236, 228, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(241, 236, 228, 0.055) 1px, transparent 1px);
  background-size: 16% 14%;
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 80%);
  mask-image: linear-gradient(180deg, #000, transparent 80%);
  pointer-events: none;
}

.macro-scan {
  position: absolute;
  top: 27%;
  right: 0;
  left: 0;
  z-index: 4;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 55, 70, 0.65), transparent);
  box-shadow: 0 0 12px rgba(218, 24, 42, 0.35);
  animation: macroScan 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes macroScan {
  0%, 100% { top: 20%; opacity: 0.15; }
  50% { top: 63%; opacity: 0.6; }
}

.macro-data {
  position: absolute;
  right: 38px;
  bottom: 86px;
  z-index: 5;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-right: 12px;
  border-right: 1px solid var(--tech-line);
  color: rgba(241, 236, 228, 0.55);
  font-family: var(--mono);
  font-size: 0.42rem;
  line-height: 1.4;
  letter-spacing: 0.07em;
  text-align: right;
}

.atelier-visual--photo .atelier-index {
  z-index: 5;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.43rem;
  letter-spacing: 0.1em;
}

.atelier-visual--photo .atelier-quote {
  z-index: 5;
  top: clamp(30px, 4.2vw, 58px);
  left: clamp(26px, 3.5vw, 48px);
  color: var(--ivory);
  text-shadow: 0 8px 30px rgba(0, 0, 0, 0.65);
}

.atelier-visual--photo figcaption {
  z-index: 5;
  padding-top: 19px;
  padding-bottom: 19px;
  background: rgba(5, 4, 5, 0.24);
  -webkit-backdrop-filter: blur(7px);
  backdrop-filter: blur(7px);
}

.atelier-visual--photo figcaption p {
  font-size: 1.08rem;
}

.atelier-visual--photo figcaption span:not(.figcaption-number) {
  font-family: var(--mono);
  font-size: 0.4rem;
  letter-spacing: 0.07em;
}

.figcaption-number {
  color: var(--red-hot);
  font-family: var(--mono);
  font-size: 0.55rem;
  font-style: normal;
}

/* --- bespoke ------------------------------------------------------------- */

.bespoke {
  background:
    radial-gradient(ellipse 55% 66% at 15% 46%, rgba(100, 7, 17, 0.3), transparent 74%),
    radial-gradient(ellipse 38% 45% at 92% 16%, rgba(75, 5, 12, 0.16), transparent 78%),
    #070506;
}

.bespoke-watermark {
  color: transparent;
  font-size: clamp(23rem, 48vw, 50rem);
  -webkit-text-stroke: 1px rgba(209, 27, 45, 0.055);
}

.bespoke-heading {
  max-width: 860px;
}

.bespoke-heading .section-title em {
  color: var(--red-bright);
}

.bespoke-intro {
  color: var(--ivory-dim);
}

.bespoke-grid {
  align-items: center;
}

.seal-card {
  border-color: rgba(241, 236, 228, 0.2);
  background:
    radial-gradient(ellipse 65% 50% at 50% 38%, #3e0910 0%, #180709 47%, #080506 82%),
    #080506;
}

.seal-card::after {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(to right, rgba(241, 236, 228, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(241, 236, 228, 0.04) 1px, transparent 1px);
  background-size: 20% 16%;
  content: "";
  opacity: 0.8;
  -webkit-mask-image: radial-gradient(ellipse at center, #000 25%, transparent 78%);
  mask-image: radial-gradient(ellipse at center, #000 25%, transparent 78%);
  pointer-events: none;
}

.seal-art {
  position: relative;
  z-index: 1;
}

.seal-kicker,
.seal-number {
  font-family: var(--mono);
  letter-spacing: 0.1em;
}

.seal-engraving {
  z-index: 2;
  border-top-color: var(--tech-line);
}

.seal-engraving-label {
  font-family: var(--mono);
  font-size: 0.44rem;
  letter-spacing: 0.1em;
}

.seal-engraving strong {
  color: var(--ivory);
  font-family: var(--display);
  letter-spacing: 0.18em;
}

.seal-wax {
  right: 6px;
  bottom: 0;
  width: 52px;
  height: 52px;
  font-family: var(--mono);
  font-size: 0.9rem;
}

.seal-status {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 12px;
  padding-top: 9px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.4rem;
  line-height: 1.5;
  letter-spacing: 0.07em;
}

.seal-status b {
  margin-left: auto;
  color: var(--red-hot);
  font-size: 0.38rem;
  font-weight: 400;
  letter-spacing: 0.05em;
}

.seal-scan {
  position: absolute;
  top: 25%;
  right: 0;
  left: 0;
  z-index: 2;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 49, 66, 0.55), transparent);
  opacity: 0.5;
  pointer-events: none;
  animation: sealScan 9s ease-in-out infinite;
}

@keyframes sealScan {
  0%, 100% { top: 22%; opacity: 0; }
  12% { opacity: 0.55; }
  66% { top: 72%; opacity: 0.28; }
}

.seal-status .signal-dot {
  width: 4px;
  height: 4px;
}

.seal-status b {
  color: var(--ivory-dim);
  font-weight: 400;
}

.bespoke-form {
  position: relative;
}

.bespoke-form::before {
  position: absolute;
  top: -10px;
  right: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--tech-line), transparent 50%);
  content: "";
}

.config-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line-soft);
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 0.4rem;
  line-height: 1.5;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.config-status > span:first-child {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--ivory-dim);
}

.config-id {
  color: var(--red-hot);
}

.legend,
.inscription-group label,
.email-group label {
  font-family: var(--mono);
  font-size: 0.48rem;
  letter-spacing: 0.1em;
}

.choice {
  border-color: var(--line);
  background: rgba(241, 236, 228, 0.018);
}

.choice:hover {
  border-color: rgba(241, 236, 228, 0.3);
}

.choice[aria-pressed="true"] {
  border-color: var(--tech-line);
  background: rgba(120, 8, 18, 0.17);
}

.choice-copy {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.015em;
}

.inscription-field {
  border-bottom-color: var(--line);
}

.inscription-field:focus-within {
  border-color: var(--red-hot);
}

.field-note,
.form-note {
  font-family: var(--mono);
  font-size: 0.55rem;
  line-height: 1.6;
  letter-spacing: 0.015em;
}

.email-group input {
  font-family: var(--mono);
  font-size: 0.68rem;
  border-color: var(--line);
}

.form-submit {
  align-items: flex-end;
}

.commission-from {
  font-family: var(--mono);
  font-size: 0.42rem;
  letter-spacing: 0.08em;
}

.commission-from strong {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0;
}

.form-success {
  font-family: var(--mono);
  font-size: 0.6rem;
  line-height: 1.7;
}

/* --- newsletter ---------------------------------------------------------- */

.newsletter--tech {
  min-height: 640px;
  background:
    radial-gradient(ellipse 42% 55% at 50% 54%, rgba(103, 9, 18, 0.33), transparent 70%),
    #050304;
}

.newsletter-grid {
  position: absolute;
  inset: 0;
  opacity: 0.45;
  background-image:
    linear-gradient(to right, rgba(241, 236, 228, 0.042) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(241, 236, 228, 0.035) 1px, transparent 1px);
  background-size: 8.5% 18%;
  -webkit-mask-image: radial-gradient(ellipse 65% 72% at 50% 50%, #000 5%, transparent 82%);
  mask-image: radial-gradient(ellipse 65% 72% at 50% 50%, #000 5%, transparent 82%);
  pointer-events: none;
}

.newsletter-wave {
  position: absolute;
  right: 0;
  bottom: 13%;
  left: 0;
  height: 180px;
  color: rgba(202, 25, 44, 0.32);
  pointer-events: none;
  opacity: 0.7;
}

.newsletter-wave svg {
  display: block;
  width: 100%;
  height: 100%;
}

.newsletter--tech .newsletter-title {
  font-size: clamp(3.8rem, 7.6vw, 8rem);
}

html[data-lang="zh"] .newsletter--tech .newsletter-title {
  font-size: clamp(3rem, 6vw, 6.2rem);
}

.newsletter--tech .newsletter-deck {
  max-width: 570px;
  color: var(--muted);
  font-size: 0.8rem;
}

.newsletter-form--tech {
  max-width: 640px;
  min-height: 54px;
  margin-top: clamp(29px, 4vw, 43px);
  padding: 0 6px 0 14px;
  border: 1px solid var(--line-strong);
  background: rgba(11, 8, 9, 0.55);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.newsletter-form--tech:focus-within {
  border-color: var(--tech-line);
}

.transmit-prefix {
  flex: none;
  color: var(--red-hot);
  font-family: var(--mono);
  font-size: 0.45rem;
  letter-spacing: 0.06em;
}

.newsletter-form--tech input {
  padding: 16px 12px;
  font-family: var(--mono);
  font-size: 0.67rem;
  letter-spacing: 0.02em;
}

.newsletter-form--tech button {
  min-height: 40px;
  padding: 0 15px;
  border-left: 1px solid var(--line);
  color: var(--ivory);
  font-family: var(--mono);
  font-size: 0.51rem;
  letter-spacing: 0.08em;
}

.newsletter-form--tech button:hover {
  color: var(--red-hot);
}

.newsletter-meta {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-top: 38px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.4rem;
  letter-spacing: 0.07em;
}

.newsletter-status {
  color: var(--red-hot);
  font-family: var(--mono);
  font-size: 0.57rem;
  letter-spacing: 0.02em;
}

.newsletter-star {
  z-index: 2;
}

/* --- footer -------------------------------------------------------------- */

.site-footer {
  padding-top: 0;
  background: #050304;
}

.footer-techbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 36px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.42rem;
  line-height: 1.5;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.footer-techbar > span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.footer-techbar > span:first-child {
  color: var(--ivory-dim);
}

.footer-techbar .signal-dot {
  width: 4px;
  height: 4px;
}

.footer-top {
  padding-top: clamp(52px, 7vw, 84px);
}

.footer-invitation {
  max-width: 340px;
}

.footer-address {
  color: var(--ivory-dim);
}

.footer-contact-status {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 0.4rem;
  letter-spacing: 0.06em;
}

.footer-links h3 {
  font-family: var(--mono);
  font-size: 0.45rem;
  letter-spacing: 0.1em;
}

.footer-links a,
.footer-links button {
  font-size: 0.69rem;
}

.footer-systemline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--tech-line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.4rem;
  line-height: 1.5;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-wordmark {
  margin-top: clamp(20px, 3vw, 42px);
}

.footer-bottom {
  font-family: var(--mono);
  font-size: 0.4rem;
}

/* --- dialogs, tech skin -------------------------------------------------- */

dialog {
  border-radius: 0;
}

.search-sheet {
  border-color: var(--line);
  background:
    linear-gradient(180deg, rgba(34, 5, 9, 0.42), transparent 35%),
    #0a0708;
}

.search-sheet::before {
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(241, 236, 228, 0.05);
  content: "";
  pointer-events: none;
}

.search-field {
  border-bottom-color: var(--tech-line);
}

.search-field input {
  font-family: var(--display);
}

.search-results-label,
.search-result-category,
.search-esc,
.search-footer {
  font-family: var(--mono);
}

.search-result {
  border-top-color: var(--line-soft);
}

.search-result-thumb {
  background: #080506;
}

.search-result-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.search-result-name {
  font-family: var(--display);
}

.search-result-price {
  font-family: var(--mono);
  font-size: 0.7rem;
}

.product-dialog {
  border-color: var(--line);
  background: #090607;
}

.product-dialog-media {
  background: #090607;
}

.product-dialog-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.product-dialog-content {
  background:
    radial-gradient(ellipse 80% 40% at 100% 0%, rgba(75, 6, 13, 0.2), transparent 66%),
    #090607;
}

.product-dialog-media::after {
  position: absolute;
  inset: 18px;
  z-index: 3;
  border: 1px solid rgba(241, 236, 228, 0.055);
  content: "";
  pointer-events: none;
}

.product-dialog-content .eyebrow {
  color: var(--red-hot);
}

.product-dialog-content h2 {
  letter-spacing: -0.04em;
}

.product-dialog-desc {
  font-size: 0.77rem;
}

.product-specs {
  border-color: var(--line-soft);
}

.product-specs dt {
  font-family: var(--mono);
}

.product-specs dd {
  font-family: var(--mono);
  font-size: 0.62rem;
}

.size-option {
  border-radius: 0;
  font-family: var(--mono);
  font-size: 0.58rem;
}

.size-option--one {
  border-radius: 0;
}

.product-dialog-scroll > .button .button-label {
  font-family: var(--mono);
}

.product-dispatch {
  font-family: var(--mono);
  font-size: 0.52rem;
}

.cart-sheet {
  background:
    radial-gradient(ellipse 100% 40% at 100% 0, rgba(84, 7, 14, 0.24), transparent 66%),
    #090607;
}

.cart-head h2 {
  color: var(--ivory);
}

.cart-empty-mark {
  font-family: var(--mono);
}

.cart-empty,
.cart-reserve,
.cart-success {
  color: var(--ivory-dim);
}

.cart-thumb {
  background: #090607;
}

.cart-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: none;
}

.cart-item-name {
  font-family: var(--display);
}

.cart-item-meta,
.cart-extra,
.cart-note,
.cart-subtotal,
.order-ref {
  font-family: var(--mono);
}

.quantity-control {
  border-color: var(--line);
}

.cart-success-mark {
  border-radius: 0;
}

.toast {
  border-color: var(--tech-line);
  background: rgba(10, 7, 8, 0.96);
  font-family: var(--mono);
  font-size: 0.6rem;
}

/* --- responsive ---------------------------------------------------------- */

@media (max-width: 1380px) {
  .ring-callout {
    display: none;
  }
}

@media (max-width: 1180px) {
  .protocol-title {
    font-size: clamp(3.4rem, 6.2vw, 6.3rem);
  }

  .banner-copy {
    width: min(54%, 560px);
  }

  .banner-side-label {
    display: none;
  }

  .banner-bottom-hud {
    padding-inline: 8%;
  }

  .hotspot-copy {
    min-width: 118px;
  }
}

@media (max-height: 860px) and (min-width: 901px) {
  .protocol-title {
    font-size: clamp(3rem, 5.2vw, 6.2rem);
  }

  .banner-copy {
    top: 24px;
  }

  .protocol-deck {
    margin-top: 14px;
    font-size: 0.72rem;
    line-height: 1.7;
  }

  .hero-data-row {
    display: none;
  }

  .banner-actions {
    margin-top: 17px;
  }

  .banner-bottom-hud {
    font-size: 0.39rem;
  }

  .hero-underbar {
    margin-top: 8px;
  }
}

@media (max-width: 1060px) {
  :root {
    --header-h: 90px;
  }

  .utility-center {
    display: none;
  }

  .primary-nav {
    display: none;
  }

  .menu-trigger {
    display: flex;
  }

  .header-actions {
    margin-left: auto;
  }

  .header-main {
    height: 64px;
  }

  .protocol-hero {
    padding-top: calc(var(--header-h) + 24px);
  }
}

@media (max-width: 900px) {
  .protocol-hero {
    display: block;
    min-height: 0;
    padding: calc(var(--header-h) + 18px) 0 16px;
  }

  .banner-media {
    aspect-ratio: 16 / 9;
  }

  .banner-frame {
    display: flex;
    flex-direction: column;
    width: 100%;
    aspect-ratio: auto;
    border-right: 0;
    border-left: 0;
    box-shadow: none;
  }

  .banner-copy {
    position: relative;
    order: 1;
    top: auto;
    left: auto;
    width: 100%;
    max-width: none;
    padding: 24px var(--pad) 28px;
    background:
      linear-gradient(150deg, rgba(111, 9, 20, 0.15), transparent 48%),
      #070506;
    pointer-events: auto;
  }

  .banner-media {
    position: relative;
    inset: auto;
    order: 2;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
  }

  .banner-image {
    object-position: 50% 48%;
    transform: none;
  }

  .banner-frame:hover .banner-image {
    transform: none;
  }

  .banner-vignette {
    background:
      linear-gradient(180deg, rgba(5, 4, 5, 0.32), transparent 24%, transparent 78%, rgba(5, 4, 5, 0.7)),
      linear-gradient(90deg, rgba(5, 4, 5, 0.22), transparent 24%, transparent 76%, rgba(5, 4, 5, 0.22));
  }

  .banner-grid {
    background-size: 20% 14%;
    opacity: 0.22;
  }

  .banner-scan {
    display: none;
  }

  .banner-light {
    display: none;
  }

  .banner-bottom-hud,
  .banner-side-label,
  .banner-rec,
  .banner-hotspots,
  .frame-rule {
    display: none;
  }

  .frame-corner {
    width: 12px;
    height: 12px;
    opacity: 0.65;
  }

  .frame-corner--tl { top: 9px; left: 9px; }
  .frame-corner--tr { top: 9px; right: 9px; }
  .frame-corner--bl { bottom: 9px; left: 9px; }
  .frame-corner--br { right: 9px; bottom: 9px; }

  .protocol-title {
    max-width: 520px;
    font-size: clamp(3.4rem, 13vw, 5.6rem);
    line-height: 0.84;
  }

  html[data-lang="zh"] .protocol-title {
    max-width: 500px;
    font-size: clamp(2.9rem, 11vw, 4.8rem);
    line-height: 1.1;
  }

  .protocol-deck {
    max-width: 430px;
    margin-top: 16px;
    font-size: 0.76rem;
    line-height: 1.8;
  }

  html[data-lang="zh"] .protocol-deck {
    font-size: 0.82rem;
    line-height: 1.95;
  }

  .banner-actions {
    margin-top: 19px;
  }

  .hero-data-row {
    margin-top: 19px;
  }

  .hero-underbar {
    width: 100%;
    margin-top: 13px;
    padding: 9px var(--pad) 0;
    border-top-color: var(--line-soft);
    font-size: 0.4rem;
  }

  .hero-underbar-center {
    display: none;
  }

  .hero-coords {
    color: var(--muted-dark);
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .section-heading-aside {
    margin-left: 0;
  }

  .product-grid--archive {
    grid-template-columns: 1fr;
    gap: 1px;
  }

  .product-grid--archive .product-card {
    width: 100%;
    margin: 0;
    grid-column: auto;
  }

  .product-card--relic {
    display: grid;
    grid-template-columns: minmax(130px, 0.9fr) minmax(0, 1.1fr);
    gap: 0 18px;
    padding: 12px;
    align-items: center;
  }

  .product-visual--photo {
    grid-row: span 2;
    aspect-ratio: 4 / 5;
  }

  .product-card--relic .product-details {
    display: block;
    align-self: end;
    padding: 8px 3px 13px;
    border-bottom: 0;
  }

  .product-card--relic .product-price {
    margin-top: 17px;
    padding-top: 9px;
    border-top: 1px solid var(--line-soft);
    font-size: 0.72rem;
  }

  .product-tags {
    margin-top: 8px;
  }

  .product-visual--photo .card-view {
    right: 9px;
    bottom: 9px;
    font-size: 0.4rem;
  }

  .card-status {
    bottom: 10px;
    left: 9px;
    font-size: 0.37rem;
  }

  .visual-crosshair {
    display: none;
  }

  .atelier-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .atelier-visual--photo {
    min-height: 560px;
  }

  .bespoke-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .seal-wrap {
    max-width: 560px;
    margin-inline: auto;
  }

  .footer-techbar > span:nth-child(2) {
    display: none;
  }

  .footer-systemline > span:nth-child(2) {
    display: none;
  }

  .manifesto-coord {
    display: none;
  }

  .manifesto-tick--e,
  .manifesto-tick--w {
    display: none;
  }
}

@media (min-width: 601px) and (max-width: 900px) {
  .protocol-title {
    font-size: clamp(3.2rem, 8.4vw, 5rem);
    line-height: 0.88;
  }

  html[data-lang="zh"] .protocol-title {
    font-size: clamp(2.7rem, 7.3vw, 4.2rem);
    line-height: 1.18;
  }

  .protocol-deck {
    max-width: 560px;
  }

  .banner-media {
    aspect-ratio: 16 / 9;
  }
}

@media (max-width: 700px) {
  :root {
    --header-h: 80px;
    --pad: 20px;
  }

  .site-header--tech .brand-name {
    font-size: 0.8rem;
    letter-spacing: 0.24em;
  }

  .site-header--tech .brand-mark {
    width: 18px;
    height: 21px;
  }

  .header-main {
    height: 56px !important;
    gap: 12px;
  }

  .site-header--tech .brand-sub {
    display: none;
  }

  .utility-strip {
    height: 24px;
    padding-inline: var(--pad);
    font-size: 0.4rem;
  }

  .utility-right,
  .utility-center {
    display: none;
  }

  .utility-left {
    width: 100%;
    justify-content: space-between;
  }

  .utility-left .utility-dim {
    margin-left: auto;
  }

  .header-actions {
    gap: 7px;
  }

  .search-trigger {
    display: none;
  }

  .bag-label {
    display: none;
  }

  .bag-trigger {
    gap: 5px;
  }

  .language-toggle {
    height: 28px;
  }

  .language-toggle button {
    height: 26px;
    padding-inline: 6px;
    font-size: 0.47rem;
  }

  .protocol-hero {
    padding-top: calc(var(--header-h) + 14px);
  }

  .banner-copy {
    padding: 21px var(--pad) 23px;
  }

  .hero-kicker {
    gap: 7px;
    font-size: 0.44rem;
    letter-spacing: 0.1em;
  }

  .protocol-title {
    margin-top: 16px;
    font-size: clamp(3.1rem, 15vw, 4.6rem);
  }

  html[data-lang="zh"] .protocol-title {
    font-size: clamp(2.6rem, 12.5vw, 3.9rem);
  }

  .protocol-deck {
    margin-top: 14px;
    font-size: 0.71rem;
  }

  .banner-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 13px;
    margin-top: 18px;
  }

  .button {
    min-height: 42px;
    padding: 11px 18px;
    font-size: 0.52rem;
  }

  .banner-scanlink {
    font-size: 0.47rem;
  }

  .hero-data-row {
    gap: 7px 13px;
    margin-top: 16px;
    font-size: 0.4rem;
  }

  .frame-corner {
    z-index: 8;
  }

  .hero-underbar {
    margin-top: 11px;
    font-size: 0.36rem;
  }

  .hero-coords {
    display: none;
  }

  .hero-scroll {
    justify-content: space-between;
    width: 100%;
  }

  .scroll-line {
    width: 55px;
  }

  .signal-strip {
    height: 45px;
  }

  .signal-group {
    gap: 17px;
    padding-left: 18px;
  }

  .signal-group > span:not(.signal-code) {
    font-size: 0.44rem;
  }

  .signal-code {
    font-size: 0.42rem;
  }

  .section {
    padding-block: 78px;
  }

  .section-rail {
    flex-wrap: wrap;
    gap: 8px 11px;
    margin-bottom: 30px;
    font-size: 0.4rem;
  }

  .rail-line {
    max-width: 26px;
  }

  .rail-status {
    width: 100%;
    padding-top: 2px;
  }

  .section-rail--center {
    justify-content: flex-start;
    text-align: left;
  }

  .section-rail--center .rail-line {
    flex: 0 0 18px;
    max-width: 18px;
  }

  .section-watermark {
    font-size: 56vw;
    top: 1%;
    right: -5%;
    opacity: 0.7;
  }

  .section-title {
    font-size: clamp(3rem, 13.5vw, 4.2rem);
    line-height: 0.92;
  }

  html[data-lang="zh"] .section-title {
    font-size: clamp(2.2rem, 9.7vw, 3.1rem);
    line-height: 1.25;
  }

  .title-data {
    gap: 7px 12px;
    margin-top: 17px;
    font-size: 0.37rem;
  }

  .section-intro {
    font-size: 0.8rem;
  }

  .section-heading {
    gap: 23px;
    margin-bottom: 34px;
  }

  .product-card--relic {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 9px;
  }

  .product-visual--photo {
    grid-row: auto;
    aspect-ratio: 4 / 5;
  }

  .product-card--relic .product-details {
    display: block;
    padding: 16px 4px 15px;
    border-bottom: 0;
  }

  .product-card--relic .product-details h3 {
    font-size: 1.65rem;
    line-height: 1.05;
  }

  html[data-lang="zh"] .product-card--relic .product-details h3 {
    font-size: 1.15rem;
  }

  .product-card--relic .product-material {
    font-size: 0.56rem;
    line-height: 1.5;
  }

  .product-card--relic .product-category {
    font-size: 0.4rem;
  }

  .product-tags {
    gap: 3px 6px;
    font-size: 0.36rem;
  }

  .product-tags span + span::before {
    margin-right: 6px;
  }

  .product-card--relic .product-price {
    margin-top: 14px;
    padding-top: 10px;
    font-size: 0.72rem;
    border-top: 1px solid var(--line-soft);
  }

  .product-visual--photo .card-view {
    display: inline-flex;
    right: 9px;
    bottom: 9px;
    padding: 7px 9px;
    font-size: 0.4rem;
  }

  .card-status {
    font-size: 0.34rem;
  }

  .product-visual--photo .card-badge {
    max-width: 94px;
    font-size: 0.37rem;
    line-height: 1.4;
  }

  .collection-foot {
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.4rem;
  }

  .collection-rule {
    flex-basis: 100%;
    order: 3;
  }

  .manifesto--tech {
    padding-block: 88px;
  }

  .manifesto--tech .manifesto-mark {
    width: 120vw;
    opacity: 0.18;
  }

  .manifesto-core {
    padding-inline: 15px;
  }

  .manifesto--tech h2 {
    font-size: clamp(2.15rem, 9.8vw, 3.15rem);
    line-height: 1.2;
  }

  .manifesto--tech h2 br {
    display: inline;
  }

  .manifesto-core .quote-mark {
    top: -34px;
    left: -4px;
    font-size: 3.3rem;
  }

  .manifesto-core .quote-mark--close {
    right: -4px;
    bottom: -54px;
    left: auto;
  }

  .manifesto-metrics {
    margin-top: 38px;
  }

  .manifesto-metrics > span {
    gap: 4px;
    padding: 10px 10px;
    font-size: 0.35rem;
  }

  .manifesto-signature {
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.39rem;
  }

  .atelier-body {
    font-size: 0.8rem;
    line-height: 1.9;
  }

  .atelier-body .lead {
    font-size: 1.22rem;
  }

  .atelier-stats {
    gap: 8px;
    margin-top: 30px;
  }

  .atelier-stats dt {
    font-size: 1.65rem;
  }

  .atelier-stats dd {
    font-size: 0.4rem;
    line-height: 1.5;
  }

  .process-list li {
    font-size: 0.45rem;
  }

  .process-state {
    font-size: 0.34rem;
  }

  .atelier-visual--photo {
    min-height: 470px;
  }

  .atelier-visual--photo .atelier-quote {
    top: 26px;
    left: 22px;
    font-size: 1.25rem;
  }

  .macro-data {
    right: 11px;
    bottom: 70px;
    font-size: 0.35rem;
  }

  .atelier-visual--photo figcaption {
    padding: 15px 18px;
  }

  .atelier-visual--photo figcaption p {
    font-size: 0.98rem;
  }

  .atelier-visual--photo figcaption span:not(.figcaption-number) {
    font-size: 0.36rem;
  }

  .seal-card {
    padding: 17px;
  }

  .seal-art {
    width: 94%;
  }

  .choice-row {
    grid-template-columns: 1fr;
  }

  .choice {
    flex-direction: row;
    min-height: 0;
    align-items: center;
    padding: 10px 12px;
  }

  .choice-copy {
    flex: 1;
  }

  .choice[aria-pressed="true"]::after {
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
  }

  .config-status {
    margin-bottom: 15px;
    font-size: 0.34rem;
  }

  .form-submit {
    flex-direction: column;
    align-items: stretch;
    gap: 15px;
  }

  .form-submit .button {
    width: 100%;
  }

  .commission-from strong {
    display: inline;
    margin-left: 4px;
    font-size: 0.72rem;
  }

  .newsletter--tech {
    min-height: 0;
    padding-block: 87px;
  }

  .newsletter--tech .newsletter-title {
    font-size: clamp(3rem, 14vw, 4.7rem);
  }

  html[data-lang="zh"] .newsletter--tech .newsletter-title {
    font-size: clamp(2.45rem, 11.3vw, 3.7rem);
  }

  .newsletter-form--tech {
    padding-left: 10px;
  }

  .transmit-prefix {
    display: none;
  }

  .newsletter-form--tech input {
    padding-inline: 8px;
    font-size: 0.58rem;
  }

  .newsletter-form--tech button {
    padding-inline: 10px;
    font-size: 0.45rem;
  }

  .newsletter-wave {
    bottom: 5%;
    height: 110px;
    opacity: 0.35;
  }

  .newsletter-meta {
    flex-wrap: wrap;
    gap: 7px 13px;
    margin-top: 27px;
    font-size: 0.34rem;
  }

  .newsletter--tech .newsletter-orbit--one {
    width: 190vw;
  }

  .newsletter--tech .newsletter-orbit--two {
    width: 250vw;
  }

  .newsletter-star {
    display: none;
  }

  .footer-techbar {
    flex-wrap: wrap;
    gap: 4px;
    padding-block: 10px;
    font-size: 0.36rem;
  }

  .footer-techbar > span:last-child {
    display: none;
  }

  .footer-systemline {
    flex-wrap: wrap;
    gap: 5px 15px;
    font-size: 0.35rem;
  }

  .footer-systemline > span:last-child {
    display: none;
  }

  .footer-top {
    padding-bottom: 38px;
  }

  .footer-invitation {
    max-width: none;
  }

  .footer-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-links > div:last-child {
    grid-column: 1 / -1;
  }

  .footer-wordmark {
    font-size: 18vw;
  }

  .footer-bottom {
    flex-wrap: wrap;
    gap: 8px 12px;
    font-size: 0.35rem;
  }

  .footer-legal {
    order: 3;
    flex-basis: 100%;
    text-align: left;
  }

  .product-dialog {
    width: 100vw;
  }

  .product-dialog-media {
    height: 40vh;
    min-height: 300px;
  }

  .product-dialog-scroll {
    padding: 26px 20px 32px;
  }

  .search-sheet {
    padding: 20px;
  }

  .search-field input {
    font-size: 1.6rem;
  }

  .search-result-thumb {
    width: 54px;
    height: 62px;
  }

  .cart-sheet {
    padding-inline: 18px;
  }

  .search-result-category {
    font-size: 0.4rem;
  }

  .search-result-price {
    font-size: 0.62rem;
  }

  .toast {
    font-size: 0.52rem;
  }
}

@media (max-width: 480px) {
  .banner-media {
    aspect-ratio: 1 / 1;
  }

  .banner-image {
    object-position: 50% 80%;
  }

  .protocol-hero {
    padding-top: calc(var(--header-h) + 14px);
  }
}

@media (max-width: 400px) {
  .protocol-title {
    font-size: 3.15rem;
  }

  html[data-lang="zh"] .protocol-title {
    font-size: 2.5rem;
  }

  .banner-copy {
    padding-top: 18px;
    padding-bottom: 20px;
  }

  .product-card--relic {
    grid-template-columns: 1fr;
  }

  .product-visual--photo .card-badge {
    max-width: 80px;
    font-size: 0.33rem;
  }

  .card-status {
    display: none;
  }

  .language-toggle button {
    padding-inline: 5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .banner-scan,
  .visual-scanline,
  .macro-scan,
  .signal-dot,
  .status-dot,
  .live-dot,
  .scroll-line,
  .hotspot-pulse {
    animation: none !important;
  }

  .banner-image {
    transform: none;
  }
}


/* --- spinel seal --------------------------------------------------------- */

.seal-card[data-stone="spinel"] {
  --stone-hi: #b8b2a8;
  --stone-mid: #514b44;
  --stone-lo: #1a1715;
  --stone-dark: #050505;
}


/* --- domain + spinel chips ------------------------------------------------ */

.footer-domain {
  color: inherit;
  border-bottom: 1px solid var(--tech-line);
  transition: color 0.25s ease, border-color 0.25s ease;
}

.footer-domain:hover {
  color: var(--ivory);
  border-color: var(--ivory);
}

.stone-chip--spinel {
  background: radial-gradient(circle at 34% 28%, #d8d2c8 0%, #8c857a 16%, #3c3732 50%, #0b0908 100%);
  box-shadow: inset 0 0 0 1px rgba(241, 236, 228, 0.18), 0 0 10px rgba(0, 0, 0, 0.55);
}


/* ==========================================================================
   MYSTIC VEIL / VESPERA OBJECT STUDIES — showcase layer
   ========================================================================== */

.showcase .product-price,
.showcase .product-dialog-price,
.showcase .size-group,
.showcase [data-add-to-cart],
.showcase .product-dispatch,
.showcase .search-result-price {
  display: none !important;
}

.showcase .product-card--relic .product-details {
  grid-template-columns: 1fr;
}

.showcase .bespoke,
.showcase .newsletter {
  display: none !important;
}

.showcase .product-card--relic .card-status {
  color: rgba(241, 236, 228, 0.62);
}

.showcase .product-card--relic .product-details {
  border-bottom-color: var(--line-soft);
}

.concept-note {
  margin: 22px 0 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.55rem;
  line-height: 1.75;
  letter-spacing: 0.02em;
}

.modal-wechat {
  margin-top: 4px;
}

.wechat-trigger {
  gap: 7px;
}

.wechat-trigger svg {
  width: 18px !important;
  height: 18px !important;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.1;
}

.wechat-trigger .bag-label {
  display: inline;
}

/* consultation section */

.consultation {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 48% 60% at 30% 40%, rgba(98, 7, 17, 0.26), transparent 72%),
    #070506;
}

.consultation-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.72fr);
  gap: clamp(40px, 8vw, 130px);
  align-items: center;
  padding-top: clamp(20px, 4vw, 48px);
}

.consultation-copy .section-title {
  max-width: 720px;
}

.consultation-deck {
  max-width: 580px;
  margin-top: 25px;
  color: var(--ivory-dim);
  font-size: 0.88rem;
  line-height: 1.9;
}

html[data-lang="zh"] .consultation-deck {
  font-size: 0.92rem;
  line-height: 2;
}

.consultation-points {
  max-width: 520px;
  margin-top: 30px;
  border-top: 1px solid var(--line-soft);
}

.consultation-points li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-soft);
  color: var(--ivory-dim);
  font-family: var(--mono);
  font-size: 0.52rem;
  letter-spacing: 0.07em;
}

.consultation-num {
  color: var(--red-hot);
  font-size: 0.46rem;
}

.consultation-cta {
  margin-top: 30px;
}

.consultation-note {
  margin-top: 18px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.52rem;
  line-height: 1.7;
}

.consultation-note a {
  color: var(--ivory);
  border-bottom: 1px solid var(--tech-line);
}

.wechat-card {
  position: relative;
  width: 100%;
  max-width: 440px;
  margin: 0;
  padding: 17px;
  border: 1px solid rgba(241, 236, 228, 0.26);
  background: #eee8de;
  color: #0b0807;
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.42);
}

.wechat-card::before,
.wechat-card::after {
  position: absolute;
  width: 22px;
  height: 1px;
  background: var(--red-bright);
  content: "";
}

.wechat-card::before { top: -1px; left: 18px; }
.wechat-card::after { right: 18px; bottom: -1px; }

.wechat-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 3px 14px;
  border-bottom: 1px solid rgba(11, 8, 7, 0.18);
  font-family: var(--mono);
  font-size: 0.48rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.wechat-card-head i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #b10f21;
  box-shadow: 0 0 0 4px rgba(177, 15, 33, 0.12);
}

.wechat-qr-wrap {
  padding: 14px;
  background: #fff;
}

.wechat-qr-wrap img {
  display: block;
  width: 100%;
  height: auto;
}

.wechat-card figcaption {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 15px 3px 2px;
  color: #413a34;
  font-family: var(--mono);
  font-size: 0.5rem;
  line-height: 1.6;
  letter-spacing: 0.02em;
}

.wechat-card-id {
  color: #8c1a25;
  font-size: 0.43rem;
  letter-spacing: 0.08em;
}

/* floating trigger */

.wechat-float {
  position: fixed;
  right: clamp(14px, 2vw, 26px);
  bottom: clamp(16px, 2.5vw, 30px);
  z-index: 70;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid rgba(241, 236, 228, 0.32);
  background: rgba(9, 6, 7, 0.88);
  color: var(--ivory);
  font-family: var(--mono);
  font-size: 0.48rem;
  letter-spacing: 0.08em;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.34);
  transition: border-color 0.25s ease, background-color 0.25s ease, color 0.25s ease;
}

.wechat-float:hover {
  border-color: var(--red-bright);
  background: var(--ivory);
  color: #0b0807;
}

.wechat-float.is-hidden,
.has-dialog .wechat-float {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}

.wechat-float {
  transition: border-color 0.25s ease, background-color 0.25s ease, color 0.25s ease, opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
}

.wechat-float svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.1;
}

/* wechat dialog */

.wechat-dialog {
  width: min(440px, calc(100vw - 32px));
  max-height: min(90vh, 760px);
  padding: 0;
  border: 1px solid var(--line);
  background: #0b0809;
  color: var(--ivory);
}

.wechat-sheet {
  position: relative;
  padding: clamp(24px, 4vw, 36px);
  overflow: auto;
}

.wechat-close {
  position: absolute;
  top: 14px;
  right: 14px;
}

.wechat-dialog h2 {
  margin: 10px 0 12px;
  color: var(--ivory);
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 2.7rem);
  font-weight: 400;
  line-height: 1;
}

.wechat-lead {
  max-width: 330px;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.8;
}

.wechat-qr-wrap--dialog {
  margin-top: 20px;
  padding: 12px;
}

.wechat-meta {
  margin-top: 12px;
  color: var(--red-hot);
  font-family: var(--mono);
  font-size: 0.43rem;
  letter-spacing: 0.07em;
}

.wechat-fine {
  margin: 15px 0 19px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.5rem;
  line-height: 1.7;
}

.wechat-fine a {
  color: var(--ivory);
  border-bottom: 1px solid var(--tech-line);
}

@media (max-width: 900px) {
  .consultation-grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .wechat-card {
    max-width: 420px;
    margin-inline: auto;
  }
}

@media (max-width: 700px) {
  .wechat-trigger .bag-label {
    display: none;
  }

  .wechat-float {
    min-height: 38px;
    padding-inline: 11px;
    font-size: 0.43rem;
  }

  .consultation {
    padding-bottom: 85px;
  }

  .consultation-deck {
    font-size: 0.8rem;
  }

  .consultation-points li {
    font-size: 0.45rem;
  }

  .wechat-card {
    max-width: 100%;
  }
}


/* --- text-only WeChat contact -------------------------------------------- */

.wechat-id-panel {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  min-height: 280px;
  padding: clamp(26px, 4vw, 44px);
  background: #fff;
  color: #0b0807;
}

.wechat-id-label {
  color: #8c1a25;
  font-family: var(--mono);
  font-size: 0.46rem;
  letter-spacing: 0.14em;
}

.wechat-id-value {
  margin-top: 10px;
  color: #0b0807;
  font-family: var(--mono);
  font-size: clamp(1.45rem, 3vw, 2.3rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.03em;
  overflow-wrap: anywhere;
}

.wechat-copy {
  margin-top: 24px;
  padding: 10px 13px;
  border: 1px solid rgba(11, 8, 7, 0.35);
  background: transparent;
  color: #0b0807;
  font-family: var(--mono);
  font-size: 0.48rem;
  letter-spacing: 0.06em;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.wechat-copy:hover {
  background: #0b0807;
  color: var(--ivory);
}

.wechat-copy-status {
  min-height: 1.2em;
  margin-top: 9px;
  color: #8c1a25;
  font-family: var(--mono);
  font-size: 0.43rem;
  letter-spacing: 0.04em;
}

.wechat-id-panel--dialog {
  min-height: 0;
  margin-top: 22px;
  border: 1px solid rgba(241, 236, 228, 0.2);
  background: #111;
  color: var(--ivory);
}

.wechat-id-panel--dialog .wechat-id-label {
  color: var(--red-hot);
}

.wechat-id-panel--dialog .wechat-id-value {
  color: var(--ivory);
}

.wechat-id-panel--dialog .wechat-copy {
  border-color: rgba(241, 236, 228, 0.3);
  color: var(--ivory);
}

.wechat-id-panel--dialog .wechat-copy:hover {
  background: var(--ivory);
  color: #0b0807;
}

.wechat-id-panel--dialog .wechat-copy-status {
  color: var(--red-hot);
}

@media (max-width: 700px) {
  .wechat-id-panel {
    min-height: 230px;
  }
}


/* --- themed WeChat card with QR ----------------------------------------- */

.wechat-card {
  border-color: rgba(241, 236, 228, 0.22);
  background:
    radial-gradient(ellipse 70% 55% at 50% 18%, rgba(120, 8, 18, 0.33), transparent 72%),
    #0a0708;
  color: var(--ivory);
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.46);
}

.wechat-card-head {
  color: var(--muted);
  border-bottom-color: var(--line-soft);
}

.wechat-card figcaption {
  color: var(--muted);
}

.wechat-card-id {
  color: var(--red-hot);
}

.wechat-qr-wrap--card,
.wechat-qr-wrap--dialog {
  width: min(100%, 270px);
  margin-top: 20px;
  padding: 10px;
  border: 1px solid rgba(241, 236, 228, 0.28);
  background: #fff;
  box-shadow: 0 0 0 5px rgba(0, 0, 0, 0.18), 0 14px 34px rgba(0, 0, 0, 0.36);
}

.wechat-qr-wrap--card img,
.wechat-qr-wrap--dialog img {
  width: 100%;
  height: auto;
}

.wechat-card .wechat-id-panel {
  min-height: 0;
  padding: 20px 0 0;
  background: transparent;
  color: var(--ivory);
}

.wechat-card .wechat-id-label {
  color: var(--red-hot);
}

.wechat-card .wechat-id-value {
  color: var(--ivory);
  font-size: clamp(1.3rem, 2.2vw, 1.75rem);
}

.wechat-card .wechat-copy {
  border-color: rgba(241, 236, 228, 0.28);
  color: var(--ivory);
}

.wechat-card .wechat-copy:hover {
  background: var(--ivory);
  color: #0b0807;
}

.wechat-card .wechat-copy-status {
  color: var(--red-hot);
}

.wechat-id-panel--dialog {
  padding: 18px;
  background: #111;
  color: var(--ivory);
}

@media (max-width: 700px) {
  .wechat-qr-wrap--card,
  .wechat-qr-wrap--dialog {
    width: min(100%, 235px);
  }
}


/* Keep short Chinese phrases intact when lines wrap. */
.nowrap {
  white-space: nowrap;
}

.product-specs dd {
  word-break: keep-all;
}