/* PORSVIK — original page styles. Brand assets below use the supplied vector outlines. */
:root {
  --ink:#1d1d1f;
  --muted:#747478;
  --paper:#fff;
  --soft:#f5f5f7;
  --line:#d8d8dc;
  --accent:#b5312e;
  --dark:#111113;
  --nav-height:64px;
  --page-width:1120px;
  color-scheme:light
}

* {
  box-sizing:border-box
}

html {
  scroll-behavior:smooth;
  scroll-padding-top:88px
}

body {
  margin:0;
  color:var(--ink);
  background:var(--paper);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
  font-size:16px;
  line-height:1.6
}

button,a,input {
  -webkit-tap-highlight-color:transparent
}

button,input {
  font:inherit
}

button,a {
  touch-action:manipulation
}

button {
  color:inherit
}

a {
  color:inherit;
  text-decoration:none
}

button {
  cursor:pointer
}

img,svg {
  display:block;
  max-width:100%
}

img {
  height:auto
}

h1,h2,h3,p,figure {
  margin:0
}

h1,h2,h3 {
  line-height:1.16;
  letter-spacing:-.055em;
  font-weight:650
}

h1 {
  font-size:clamp(42px,5.4vw,80px)
}

h2 {
  font-size:clamp(36px,4.6vw,66px)
}

h3 {
  font-size:30px
}

p {
  overflow-wrap:break-word
}

button {
  border:0;
  background:none
}

a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible {
  outline:3px solid #1769ae;
  outline-offset:6px;
  border-radius:4px
}

.wrap {
  width:min(var(--page-width),calc(100% - 96px));
  margin-inline:auto
}

.section-space {
  padding-block:116px
}

.eyebrow {
  font-size:17px;
  font-weight:600;
  letter-spacing:.02em;
  margin-bottom:18px
}

.muted {
  color:var(--muted)
}

.soft-white {
  color:#97979d
}

.section-lead {
  color:var(--muted);
  font-size:20px;
  line-height:1.65;
  margin-top:26px;
  max-width:670px
}

.actions {
  display:flex;
  justify-content:center;
  align-items:center;
  gap:25px;
  flex-wrap:wrap;
  margin-top:26px
}

.button {
  display:inline-flex;
  justify-content:center;
  align-items:center;
  min-height:44px;
  padding:10px 24px;
  border-radius:99px;
  background:var(--ink);
  color:#fff;
  font-size:15px;
  font-weight:500;
  line-height:1.5;
  transition:background .2s,transform .2s
}

.button:hover {
  background:#3e3e42
}

.button:active {
  transform:scale(.98)
}

.text-link {
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  font-size:16px;
  color:var(--accent)
}

.text-link span {
  font-size:23px;
  transition:transform .2s
}

.text-link:hover span {
  transform:translateX(3px)
}

.text-link:hover {
  text-decoration:underline;
  text-underline-offset:5px
}

.light-link {
  color:#eee
}

.skip-link {
  position:fixed;
  top:-100px;
  left:20px;
  z-index:120;
  background:white;
  padding:12px 20px
}

.skip-link:focus {
  top:8px
}

.site-header {
  height:var(--nav-height);
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.76);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(0,0,0,.07);
  transition:background .3s,backdrop-filter .3s
}

.site-header.is-scrolled {
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(23px);
  -webkit-backdrop-filter:blur(23px)
}

.nav-shell {
  width:min(1240px,calc(100% - 72px));
  margin:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:100%
}

.wordmark {
  font-family:Arial,Helvetica,sans-serif;
  font-weight:850;
  font-size:23px;
  font-style:italic;
  letter-spacing:-1.5px;
  white-space:nowrap;
  display:inline-flex;
  align-items:center;
  gap:13px
}

.wordmark span {
  font-family:-apple-system,BlinkMacSystemFont,"Microsoft YaHei",sans-serif;
  font-size:12px;
  font-style:normal;
  font-weight:500;
  letter-spacing:2px;
  padding-left:13px;
  border-left:1px solid #c7c7cb
}

.nav-links {
  display:flex;
  align-items:center;
  gap:38px;
  height:100%;
  font-size:13px
}

.nav-links>a {
  display:flex;
  align-items:center;
  min-height:44px
}

.nav-links>a:hover {
  color:var(--accent)
}

.nav-buy {
  font-weight:600
}

.menu-toggle {
  display:none;
  width:44px;
  height:44px;
  position:relative
}

.menu-toggle span {
  display:block;
  width:18px;
  height:1px;
  background:var(--ink);
  position:absolute;
  left:13px;
  top:18px;
  transition:transform .25s
}

.menu-toggle span+span {
  top:25px
}

.menu-toggle[aria-expanded=true] span {
  transform:translateY(3.5px) rotate(45deg)
}

.menu-toggle[aria-expanded=true] span+span {
  transform:translateY(-3.5px) rotate(-45deg)
}

.home-hero {
  text-align:center;
  padding-top:64px;
  overflow:hidden
}

.hero-copy {
  position:relative;
  z-index:2
}

.hero-copy .eyebrow {
  font-size:23px;
  margin-bottom:17px
}

.hero-description {
  font-size:19px;
  color:var(--muted);
  margin-top:18px
}

.hero-product-stage {
  width:min(820px,100%);
  height:590px;
  margin:32px auto 0;
  display:flex;
  justify-content:center;
  gap:64px;
  position:relative;
  overflow:visible
}

.hero-product {
  position:relative;
  width:290px;
  height:570px;
  flex:none;
  overflow:hidden;
  align-self:center
}

.hero-product img {
  position:absolute;
  max-width:none;
  width:630px;
  height:auto;
  left:-170px;
  top:-14px
}

.hero-product-front {
  transform:rotate(-11deg) translateY(7px)
}

.hero-product-angle {
  transform:rotate(11deg)
}

.hero-product-angle img {
  left:-168px;
  top:-10px
}

.hero-baseline {
  display:flex;
  align-items:center;
  justify-content:space-between;
  max-width:1240px;
  margin:26px auto 0;
  padding:0 36px 30px;
  font-size:11px;
  letter-spacing:1.5px;
  color:var(--muted)
}

.hero-baseline a {
  font-size:12px;
  letter-spacing:.1em
}

.hero-baseline a span {
  margin-left:8px
}

.dark-section {
  background:var(--dark);
  color:#f5f5f7
}

.dark-section .section-lead {
  color:#a1a1a6
}

.section-heading .text-link {
  margin-top:20px
}

.home-core {
  padding-bottom:52px
}

.home-core-figure {
  margin-top:22px
}

.core-preview {
  width:100%;
  height:auto
}

.home-core-figure figcaption {
  font-size:12px;
  color:#88888e;
  text-align:center;
  padding:12px 0
}

.feature-heading {
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:70px
}

.feature-description {
  max-width:365px;
  padding-bottom:4px
}

.feature-description p {
  font-size:18px;
  color:var(--muted)
}

.feature-description .text-link {
  margin-top:16px
}

.carbon-preview {
  position:relative;
  height:510px;
  background:var(--soft);
  overflow:hidden;
  border-radius:4px;
  margin-top:64px
}

.sheet-stack {
  position:absolute;
  width:57%;
  height:300px;
  left:8%;
  top:74px;
  transform:rotate(-13deg) skewX(20deg)
}

.sheet-stack span {
  position:absolute;
  inset:0;
  background:repeating-linear-gradient(0deg,#303035 0 3px,#37373c 3px 6px);
  border:1px solid #67676b;
  border-radius:40px;
  box-shadow:0 12px 24px #0002
}

.sheet-stack span:nth-child(1) {
  transform:translate(0,68px);
  background:#929297
}

.sheet-stack span:nth-child(2) {
  transform:translate(0,25px);
  background:#737377
}

.sheet-stack span:nth-child(3) {
  transform:translate(0,-18px);
  background:#4f4f53
}

.sheet-stack span:nth-child(4) {
  transform:translate(0,-61px)
}

.material-sign {
  position:absolute;
  right:8%;
  top:190px;
  font-size:54px;
  font-weight:650;
  line-height:1.1;
  letter-spacing:-2px
}

.material-sign span {
  display:block;
  margin-top:12px;
  font-size:12px;
  letter-spacing:3px;
  color:var(--muted)
}

.carbon-preview figcaption {
  position:absolute;
  bottom:23px;
  left:30px;
  right:30px;
  color:var(--muted);
  font-size:12px;
  text-align:center
}

.home-surface {
  min-height:700px;
  position:relative;
  overflow:hidden
}

.surface-texture {
  position:absolute;
  inset:0;
  background-color:#18181a;
  background-image:url('assets/xgrit-texture.svg');
  background-size:490px;
  transform:scale(1.06) rotate(-4deg);
  opacity:.7
}

.home-surface:after {
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,#101012 4%,#101012ed 29%,#10101215 100%)
}

.surface-copy {
  position:relative;
  padding-block:125px;
  z-index:1
}

.surface-copy h2 {
  font-size:clamp(44px,5.3vw,76px)
}

.surface-copy .text-link {
  margin-top:24px
}

.surface-caption {
  position:absolute;
  right:48px;
  bottom:26px;
  color:#a1a1a6;
  font-size:12px;
  z-index:1
}

.product-choice {
  background:#fff
}

.product-pair {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:80px;
  margin-top:46px;
  max-width:960px
}

.product-option {
  text-align:center
}

.choice-image {
  display:block;
  width:100%;
  height:390px;
  position:relative;
  overflow:hidden;
  padding:0;
  margin-bottom:28px
}

.choice-image img {
  height:430px;
  width:430px;
  max-width:none;
  position:absolute;
  left:50%;
  top:-20px;
  transform:translateX(-50%);
  object-fit:contain;
  transition:transform .6s
}

.choice-image:hover img {
  transform:translateX(-50%) scale(1.03)
}

.product-option .eyebrow {
  font-size:28px;
  letter-spacing:.02em;
  margin-bottom:0
}

.product-option h3 {
  font-size:19px;
  margin-top:6px;
  letter-spacing:.03em
}

.shape-copy {
  font-size:15px;
  color:var(--muted);
  margin-top:23px;
  line-height:1.8
}

.product-option .actions {
  gap:20px;
  margin-top:21px
}

.choice-note {
  color:var(--muted);
  font-size:12px;
  text-align:center;
  margin-top:55px
}

.brand-section {
  background:var(--soft);
  padding-block:148px
}

.brand-description {
  font-size:19px;
  line-height:1.9;
  color:var(--muted);
  margin-top:34px
}

.brand-manifesto {
  font-size:13px;
  letter-spacing:3px;
  margin-top:68px;
  font-weight:600
}

.purchase-status {
  font-size:13px;
  color:var(--muted);
  padding-block:18px
}

.site-footer {
  background:var(--soft);
  padding-top:54px;
  color:var(--muted);
  font-size:12px
}

.footer-main {
  display:grid;
  grid-template-columns:2fr 1fr 1.3fr 1fr;
  gap:32px;
  padding-bottom:52px
}

.footer-main>.wordmark {
  align-self:start;
  color:var(--ink);
  font-size:26px
}

.footer-main p {
  color:var(--ink);
  margin-bottom:13px;
  font-weight:600
}

.footer-main a:not(.wordmark),.footer-main button {
  display:block;
  font-size:12px;
  padding:7px 0;
  text-align:left
}

.footer-main a span {
  font-size:10px;
  color:#87878b;
  margin-left:4px
}

.footer-main a:hover,.footer-main button:hover {
  text-decoration:underline
}

.footer-bottom {
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:24px;
  padding-block:22px
}

.info-dialog {
  border:none;
  border-radius:22px;
  width:min(530px,calc(100% - 32px));
  padding:44px;
  color:var(--ink);
  max-height:90vh;
  box-shadow:0 30px 100px #0003
}

.info-dialog::backdrop {
  background:#0007;
  backdrop-filter:blur(8px)
}

.info-dialog h2 {
  font-size:32px;
  line-height:1.3;
  margin-bottom:20px
}

.info-dialog p {
  color:var(--muted)
}

.info-dialog .eyebrow {
  font-size:12px;
  letter-spacing:2px;
  color:var(--ink)
}

.dialog-close {
  position:absolute;
  right:14px;
  top:10px;
  width:44px;
  height:44px;
  font-size:29px;
  color:var(--muted)
}

.dialog-done {
  margin-top:28px
}

.info-dialog ul {
  padding-left:20px;
  color:var(--muted)
}

.info-dialog img {
  max-height:250px;
  object-fit:contain;
  margin:16px auto
}

/* Text stays readable before and without script. IntersectionObserver adds a gentle settling effect. */
[data-reveal] {
  opacity:1
}

.is-revealed {
  animation:settle .8s ease both
}

@keyframes settle {
  from {
    transform:translateY(24px);
    opacity:.65
  }
  to {
    transform:none;
    opacity:1
  }
}

.hero-copy {
  animation:hero-in .9s ease both
}

.hero-product-stage {
  animation:hero-in 1.1s .12s ease both
}

@keyframes hero-in {
  from {
    opacity:.35;
    translate:0 18px
  }
  to {
    opacity:1;
    translate:0 0
  }
}

@media(min-width:1600px) {
  .home-hero {
    padding-top:78px
  }
  .hero-product-stage {
    height:670px;
    margin-top:35px;
    gap:84px
  }
  .hero-product {
    width:325px;
    height:650px
  }
  .hero-product img {
    width:715px;
    left:-195px
  }
  .hero-product-angle img {
    left:-193px
  }
  .hero-baseline {
    padding-bottom:36px
  }
}

@media(max-width:1024px) {
  :root {
    --nav-height:60px
  }
  .wrap {
    width:calc(100% - 72px)
  }
  .section-space {
    padding-block:90px
  }
  .nav-shell {
    width:calc(100% - 56px)
  }
  .nav-links {
    gap:28px
  }
  .home-hero {
    padding-top:56px
  }
  .hero-product-stage {
    height:550px;
    gap:40px
  }
  .hero-product {
    height:525px;
    width:260px
  }
  .hero-product img {
    width:580px;
    left:-160px
  }
  .hero-product-angle img {
    left:-160px
  }
  .feature-heading {
    gap:35px
  }
  .feature-description {
    max-width:320px
  }
  .carbon-preview {
    height:450px
  }
  .sheet-stack {
    height:250px;
    top:96px;
    left:6%
  }
  .material-sign {
    right:5%;
    font-size:42px
  }
  .product-pair {
    gap:36px
  }
  .footer-main {
    grid-template-columns:1.5fr 1fr 1.3fr
  }
  .footer-main>div:last-child {
    grid-column:2 / 4
  }
  .brand-section {
    padding-block:105px
  }
}

@media(max-width:767px) {
  :root {
    --nav-height:56px
  }
  .wrap {
    width:calc(100% - 40px)
  }
  html {
    scroll-padding-top:76px
  }
  h1 {
    font-size:clamp(40px,7.5vw,58px);
    line-height:1.2
  }
  h2 {
    font-size:clamp(35px,6.3vw,49px);
    line-height:1.2
  }
  .section-space {
    padding-block:72px
  }
  .eyebrow {
    font-size:14px;
    margin-bottom:16px
  }
  .section-lead {
    font-size:17px;
    margin-top:23px
  }
  .nav-shell {
    width:calc(100% - 36px)
  }
  .wordmark {
    font-size:21px
  }
  .wordmark span {
    font-size:11px
  }
  .menu-toggle {
    display:block
  }
  .nav-links {
    position:absolute;
    left:0;
    right:0;
    top:var(--nav-height);
    height:auto;
    padding:16px 26px 25px;
    background:rgba(255,255,255,.98);
    border-bottom:1px solid var(--line);
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    font-size:17px
  }
  .nav-links.is-open {
    display:flex
  }
  .nav-links>a {
    min-height:48px
  }
  .home-hero {
    padding-top:44px
  }
  .hero-copy {
    padding-inline:20px
  }
  .hero-copy .eyebrow {
    font-size:18px;
    margin-bottom:14px
  }
  .hero-description {
    font-size:16px;
    max-width:290px;
    margin:16px auto 0
  }
  .actions {
    gap:18px;
    margin-top:22px
  }
  .button {
    font-size:14px;
    padding:10px 20px
  }
  .text-link {
    font-size:14px
  }
  .hero-product-stage {
    height:435px;
    margin-top:28px;
    gap:10px;
    width:100%;
    padding-inline:5px
  }
  .hero-product {
    width:175px;
    height:405px
  }
  .hero-product img {
    width:435px;
    left:-129px;
    top:-3px
  }
  .hero-product-front {
    transform:rotate(-9deg) translateY(4px)
  }
  .hero-product-angle {
    transform:rotate(9deg)
  }
  .hero-product-angle img {
    left:-130px;
    top:-2px
  }
  .hero-baseline {
    padding:0 20px 22px;
    margin-top:9px;
    justify-content:space-between
  }
  .hero-baseline>span:last-child {
    display:none
  }
  .hero-baseline>span {
    font-size:9px;
    letter-spacing:1px
  }
  .hero-baseline a {
    font-size:11px
  }
  .home-core {
    padding-bottom:28px
  }
  .home-core-figure {
    width:100%;
    margin-top:35px
  }
  .core-preview {
    min-height:235px
  }
  .home-core-figure figcaption {
    padding:12px 24px;
    max-width:400px;
    margin:auto;
    line-height:1.6;
    font-size:11px
  }
  .feature-heading {
    display:block
  }
  .feature-description {
    margin-top:24px;
    max-width:none
  }
  .feature-description p {
    font-size:17px
  }
  .carbon-preview {
    height:340px;
    margin-top:37px
  }
  .sheet-stack {
    width:64%;
    height:140px;
    top:115px;
    left:5%;
    transform:rotate(-15deg) skewX(15deg)
  }
  .sheet-stack span {
    border-radius:20px
  }
  .sheet-stack span:nth-child(1) {
    transform:translate(0,38px)
  }
  .sheet-stack span:nth-child(2) {
    transform:translate(0,8px)
  }
  .sheet-stack span:nth-child(3) {
    transform:translate(0,-22px)
  }
  .sheet-stack span:nth-child(4) {
    transform:translate(0,-52px)
  }
  .material-sign {
    font-size:27px;
    right:5%;
    top:113px;
    letter-spacing:-1px
  }
  .material-sign span {
    font-size:9px;
    letter-spacing:1px
  }
  .carbon-preview figcaption {
    font-size:10px;
    bottom:20px;
    left:18px;
    right:18px
  }
  .home-surface {
    min-height:640px
  }
  .surface-copy {
    padding-block:79px
  }
  .surface-copy h2 {
    font-size:45px
  }
  .home-surface:after {
    background:linear-gradient(180deg,#111113 1%,#111113dd 35%,#11111316)
  }
  .surface-texture {
    background-size:340px;
    opacity:.55
  }
  .surface-caption {
    font-size:10px;
    right:20px;
    left:20px;
    bottom:20px;
    text-align:center
  }
  .product-pair {
    gap:22px;
    margin-top:30px
  }
  .choice-image {
    height:266px;
    margin-bottom:22px
  }
  .choice-image img {
    height:290px;
    width:290px;
    top:-11px
  }
  .product-option .eyebrow {
    font-size:25px
  }
  .product-option h3 {
    font-size:17px
  }
  .shape-copy {
    font-size:13px;
    line-height:1.75;
    min-height:92px;
    margin-top:19px
  }
  .product-option .actions {
    flex-direction:column;
    gap:4px;
    margin-top:18px
  }
  .product-option .button {
    padding:9px 18px;
    font-size:13px
  }
  .choice-note {
    font-size:11px;
    text-align:left;
    margin-top:32px
  }
  .brand-section {
    padding-block:86px
  }
  .brand-description {
    font-size:16px;
    line-height:1.85
  }
  .brand-description br {
    display:none
  }
  .brand-manifesto {
    font-size:11px;
    letter-spacing:2px;
    margin-top:46px
  }
  .footer-main {
    grid-template-columns:1fr 1fr;
    gap:30px;
    padding-bottom:36px
  }
  .footer-main>.wordmark {
    grid-column:1 / -1
  }
  .footer-main>div:last-child {
    grid-column:auto
  }
  .footer-bottom {
    flex-wrap:wrap;
    gap:10px 24px;
    font-size:10px
  }
  .footer-bottom>p:nth-child(2) {
    display:none
  }
  .footer-bottom>a {
    margin-left:auto
  }
  .info-dialog {
    padding:42px 26px 30px
  }
  .info-dialog h2 {
    font-size:29px
  }
  .desktop-break {
    display:none
  }
}

@media(max-width:390px) {
  .hero-product-stage {
    gap:0
  }
  .hero-product {
    width:165px
  }
  .hero-product img {
    left:-135px
  }
  .hero-product-angle img {
    left:-135px
  }
  .product-pair {
    gap:14px
  }
  .choice-image {
    height:241px
  }
  .choice-image img {
    width:264px;
    height:264px
  }
  .shape-copy {
    font-size:12px
  }
  .surface-copy h2 {
    font-size:42px
  }
  .wordmark span {
    display:none
  }
}

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

.product-nav-brand {
  display:flex;
  align-items:center;
  gap:20px
}

.product-nav-brand .wordmark {
  font-size:17px
}

.nav-divider {
  color:#bebec3;
  font-weight:300
}

.product-nav-name {
  font-size:20px;
  letter-spacing:-.8px;
  font-weight:650
}

.nav-links .nav-pill {
  min-height:31px;
  line-height:1;
  padding:9px 18px;
  color:white;
  background:var(--ink);
  border-radius:30px;
  font-size:12px
}

.nav-links .nav-pill:hover {
  background:#414145;
  color:white
}

.zeus-hero {
  text-align:center;
  overflow:hidden;
  padding-top:64px
}

.zeus-hero .eyebrow {
  font-size:14px;
  margin-bottom:22px;
  color:var(--muted)
}

.zeus-hero h1 {
  font-size:clamp(88px,10vw,148px);
  line-height:1;
  letter-spacing:-.075em
}

.zeus-hero h1>span {
  display:inline-block;
  vertical-align:middle;
  font-size:23px;
  letter-spacing:.1em;
  margin-left:22px;
  font-weight:500
}

.zeus-tagline {
  font-size:25px;
  letter-spacing:-.03em;
  font-weight:500;
  margin-top:22px
}

.zeus-hero .hero-copy>.text-link {
  margin-top:14px
}

.zeus-hero-visual {
  position:relative;
  height:620px;
  max-width:1000px;
  margin:10px auto 0;
  overflow:hidden
}

.zeus-hero-visual img {
  position:absolute;
  width:740px;
  max-width:none;
  left:50%;
  top:-21px;
  transform:translateX(-50%) rotate(-12deg)
}

.zeus-hero-visual figcaption {
  position:absolute;
  right:25px;
  bottom:40px;
  writing-mode:vertical-rl;
  letter-spacing:3px;
  color:var(--muted);
  font-size:10px
}

.zeus-intro {
  padding-block:80px 104px;
  text-align:left;
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:35px
}

.zeus-intro>p {
  font-size:clamp(25px,2.8vw,40px);
  line-height:1.4;
  letter-spacing:-.035em;
  font-weight:550
}

.zeus-intro>a {
  flex:none;
  margin-bottom:4px
}

.story {
  position:relative;
  height:250svh;
  min-height:1700px;
  scroll-margin-top:0
}

.story-sticky {
  position:sticky;
  top:var(--nav-height);
  height:calc(100svh - var(--nav-height));
  min-height:640px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  overflow:hidden
}

.story-inner {
  display:grid;
  grid-template-columns:.88fr 1.12fr;
  gap:38px;
  align-items:center;
  flex:1;
  min-height:0;
  padding-top:28px
}

.story-copy {
  padding-block:22px;
  position:relative;
  z-index:2
}

.chapter-index {
  font-size:12px;
  font-weight:500;
  letter-spacing:1.5px;
  color:var(--muted);
  margin-bottom:27px
}

.chapter-index span {
  margin:0 10px;
  color:#aaa
}

.dark-section .chapter-index {
  color:#a1a1a6
}

.story-copy h2 {
  font-size:clamp(38px,4.6vw,66px)
}

.story-intro {
  font-size:17px;
  color:var(--muted);
  margin-top:25px;
  line-height:1.75
}

.dark-section .story-intro {
  color:#a1a1a6
}

.story-steps {
  margin-top:35px;
  display:grid;
  gap:24px
}

.story-step {
  position:relative;
  padding-left:19px;
  border-left:1px solid #c4c4ca;
  opacity:.72
}

.story-step h3 {
  font-size:17px;
  letter-spacing:0;
  line-height:1.5;
  margin-bottom:6px
}

.story-step p {
  font-size:14px;
  line-height:1.7;
  color:var(--muted)
}

.dark-section .story-step {
  border-color:#65656a
}

.dark-section .story-step p {
  color:#a5a5ac
}

.story-figure {
  position:relative;
  align-self:center;
  min-width:0
}

.story-figure figcaption {
  text-align:center;
  max-width:460px;
  margin:14px auto 0;
  color:var(--muted);
  font-size:11px;
  line-height:1.7;
  padding-inline:10px
}

.story-figure figcaption>span {
  display:block;
  color:var(--ink);
  font-size:12px;
  font-weight:500;
  margin-bottom:4px
}

.dark-section .story-figure figcaption {
  color:#9a9aa0
}

.dark-section .story-figure figcaption>span {
  color:#d4d4d9
}

.core-diagram {
  width:100%;
  height:min(62vh,610px);
  overflow:visible
}

.core-ring,.core-foam {
  transform-origin:335px 335px
}

.story-progress {
  height:64px;
  display:flex;
  align-items:center;
  gap:24px;
  font-size:9px;
  font-weight:500;
  letter-spacing:1.8px;
  flex:none;
  color:var(--muted)
}

.dark-section .story-progress {
  color:#a1a1a6
}

.story-progress>div {
  height:1px;
  background:#d5d5da;
  flex:1;
  overflow:hidden
}

.dark-section .story-progress>div {
  background:#3b3b40
}

.story-progress i {
  display:block;
  width:100%;
  height:1px;
  background:var(--ink);
  transform:scaleX(0);
  transform-origin:left
}

.dark-section .story-progress i {
  background:#c0c0c6
}

.story-carbon {
  background:var(--soft)
}

.carbon-scene {
  height:min(62vh,575px);
  min-height:475px;
  position:relative;
  overflow:hidden
}

.carbon-photo {
  position:absolute;
  left:14%;
  top:7%;
  width:66%;
  height:80%;
  overflow:hidden;
  background:#1e1e20;
  border-radius:55px;
  transform:rotate(-7deg)
}

.carbon-photo img {
  position:absolute;
  max-width:none;
  width:1450px;
  height:1450px;
  left:-440px;
  top:-230px
}

.carbon-photo span {
  position:absolute;
  left:24px;
  bottom:22px;
  color:#bbb;
  font-size:11px;
  letter-spacing:2px
}

.carbon-layers {
  position:absolute;
  width:66%;
  height:68%;
  top:15%;
  left:15%;
  transform:rotate(-12deg) skewY(8deg);
  opacity:0
}

.carbon-layer {
  position:absolute;
  inset:0;
  border:1px solid #7b7b83;
  border-radius:47px;
  background:repeating-linear-gradient(30deg,#2e2e32 0 2px,#343438 2px 4px);
  box-shadow:6px 16px 20px #0000000c
}

.carbon-layer:nth-child(1) {
  background:#929298;
  z-index:4
}

.carbon-layer:nth-child(2) {
  background:#69696f;
  z-index:3
}

.carbon-layer:nth-child(3) {
  background:#49494f;
  z-index:2
}

.carbon-layer:nth-child(4) {
  z-index:1
}

.carbon-layer b {
  position:absolute;
  left:22px;
  top:12px;
  color:#ededf1;
  font-size:12px;
  font-weight:400;
  letter-spacing:1px
}

.carbon-mark {
  position:absolute;
  right:3%;
  bottom:25px;
  font-size:39px;
  line-height:1.05;
  font-weight:600;
  letter-spacing:-1.8px
}

.carbon-mark span {
  display:block;
  margin-top:9px;
  font-size:9px;
  font-weight:500;
  letter-spacing:2px;
  color:var(--muted)
}

.surface-scene {
  position:relative;
  height:min(64vh,590px);
  min-height:440px;
  background:white;
  border-radius:5px;
  overflow:hidden
}

.surface-product {
  position:absolute;
  inset:0;
  transform-origin:center 38%;
  overflow:hidden
}

.surface-product img {
  position:absolute;
  width:640px;
  height:640px;
  max-width:none;
  left:50%;
  top:-14px;
  transform:translateX(-50%)
}

.surface-macro {
  position:absolute;
  inset:0;
  background:#1d1d1f;
  overflow:hidden;
  opacity:0
}

.macro-grain {
  position:absolute;
  inset:-6%;
  background:#1b1b1d url('assets/xgrit-texture.svg') center/400px;
  transform:scale(1)
}

.surface-macro:after {
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(ellipse at 42% 34%,transparent 8%,#060608a6 100%)
}

.surface-macro>span {
  position:absolute;
  left:30px;
  bottom:24px;
  z-index:1;
  color:#c6c6cc;
  font-size:12px;
  letter-spacing:3px
}

.focus-brackets {
  position:absolute;
  left:25%;
  right:25%;
  top:24%;
  bottom:34%;
  pointer-events:none;
  opacity:0
}

.focus-brackets i {
  position:absolute;
  width:20px;
  height:20px;
  border-style:solid;
  border-color:#aaa;
  border-width:1px 0 0 1px
}

.focus-brackets i:nth-child(1) {
  left:0;
  top:0
}

.focus-brackets i:nth-child(2) {
  right:0;
  top:0;
  transform:rotate(90deg)
}

.focus-brackets i:nth-child(3) {
  right:0;
  bottom:0;
  transform:rotate(180deg)
}

.focus-brackets i:nth-child(4) {
  left:0;
  bottom:0;
  transform:rotate(270deg)
}

.appearance {
  overflow:hidden
}

.appearance-layout {
  display:grid;
  grid-template-columns:1.25fr .75fr;
  gap:80px;
  align-items:center;
  margin-top:40px
}

.color-view {
  min-width:0
}

.color-images {
  position:relative;
  aspect-ratio:1/1;
  width:100%;
  overflow:hidden;
  background:white
}

.color-image {
  position:absolute;
  width:100%;
  height:100%;
  object-fit:contain;
  inset:0;
  opacity:0;
  transition:opacity .55s ease;
  pointer-events:none
}

.color-image.is-active {
  opacity:1
}

.color-view figcaption {
  font-size:12px;
  text-align:center;
  color:var(--muted);
  margin-top:15px
}

.color-model {
  font-size:42px;
  font-weight:650;
  line-height:1.1;
  letter-spacing:-1.8px
}

.color-description {
  font-size:23px;
  font-weight:500;
  line-height:1.45;
  margin-top:14px;
  letter-spacing:-.5px
}

.color-picker {
  border:0;
  margin:34px 0 0;
  padding:0;
  display:flex;
  gap:13px;
  flex-wrap:wrap
}

.color-picker legend {
  font-size:13px;
  color:var(--muted);
  padding:0;
  margin-bottom:17px
}

.color-swatch {
  display:block;
  position:relative;
  width:38px;
  height:38px;
  cursor:pointer
}

.color-swatch input {
  appearance:none;
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  margin:0;
  border:1px solid transparent;
  border-radius:50%;
  cursor:pointer;
  z-index:1;
  background:none
}

.color-swatch>span {
  position:absolute;
  inset:5px;
  border-radius:50%;
  background:var(--swatch);
  box-shadow:inset 0 1px 3px #0004
}

.color-swatch input:checked {
  border-color:#5a5a60
}

.color-swatch input:focus-visible {
  outline:3px solid #1769ae;
  outline-offset:3px
}

.view-picker {
  display:inline-flex;
  gap:4px;
  background:var(--soft);
  border-radius:30px;
  padding:4px;
  margin-top:29px
}

.view-picker button {
  padding:7px 18px;
  border-radius:30px;
  font-size:12px;
  min-height:36px;
  color:var(--muted)
}

.view-picker button.is-selected {
  background:white;
  box-shadow:0 2px 8px #0001;
  color:var(--ink)
}

.appearance-controls>.text-link {
  display:flex;
  margin-top:22px
}

.specs-section {
  background:var(--soft)
}

.specs-layout {
  display:grid;
  grid-template-columns:1fr 1.35fr;
  gap:90px;
  margin-top:66px;
  align-items:start
}

.specs-intro>p:first-child {
  font-size:23px;
  font-weight:500;
  line-height:1.5;
  letter-spacing:-.5px
}

.specs-note {
  font-size:12px;
  color:var(--muted);
  margin-top:25px;
  line-height:1.9
}

.spec-table {
  border-collapse:collapse;
  width:100%;
  font-size:15px;
  table-layout:fixed
}

.spec-table th,.spec-table td {
  padding:17px 0;
  text-align:left;
  border-bottom:1px solid var(--line);
  vertical-align:top;
  overflow-wrap:anywhere
}

.spec-table th {
  font-weight:500;
  width:40%;
  padding-right:20px
}

.spec-table td {
  color:var(--muted)
}

.spec-table tr:first-child th,.spec-table tr:first-child td {
  padding-top:0
}

.buy-section {
  padding-block:95px
}

.buy-layout {
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:100px;
  align-items:center
}

.buy-visual {
  position:relative;
  min-width:0;
  height:600px;
  overflow:hidden
}

.buy-visual img {
  position:absolute;
  width:640px;
  height:640px;
  max-width:none;
  top:-15px;
  left:50%;
  transform:translateX(-50%)
}

.buy-copy .eyebrow {
  font-size:11px;
  letter-spacing:2px
}

.buy-copy h2 {
  font-size:clamp(44px,4.8vw,65px)
}

.buy-model {
  font-size:21px;
  font-weight:500;
  margin-top:28px
}

.purchase-details {
  margin:24px 0 31px;
  font-size:14px
}

.purchase-details>div {
  display:flex;
  justify-content:space-between;
  gap:28px;
  padding:11px 0;
  border-bottom:1px solid var(--line)
}

.purchase-details dt {
  color:var(--muted);
  flex:none
}

.purchase-details dd {
  margin:0;
  text-align:right;
  overflow-wrap:anywhere
}

.buy-copy .button {
  gap:16px
}

.buy-status {
  font-size:12px;
  color:var(--muted);
  margin-top:14px
}

.hero-product img {
  width:600px;
  left:-155px
}

.hero-product-angle img {
  left:-155px
}

@media(min-width:1600px) {
  .hero-product img {
    width:675px;
    left:-175px
  }
  .hero-product-angle img {
    left:-175px
  }
  .zeus-hero-visual {
    height:740px
  }
  .zeus-hero-visual img {
    width:850px
  }
  .story-inner {
    gap:55px
  }
  .story-figure {
    width:calc(100% + 50px)
  }
}

@media(max-width:1100px) {
  .story-inner {
    gap:15px;
    grid-template-columns:1fr 1.08fr
  }
  .story-copy h2 {
    font-size:48px
  }
  .story-steps {
    margin-top:27px;
    gap:20px
  }
  .story-intro {
    font-size:16px
  }
  .story-figure figcaption {
    font-size:10px
  }
  .core-diagram {
    height:510px
  }
  .carbon-scene {
    min-height:440px
  }
  .carbon-photo {
    left:10%;
    width:75%;
    border-radius:42px
  }
  .carbon-photo img {
    width:1350px;
    height:1350px;
    left:-430px;
    top:-190px
  }
  .carbon-layer {
    border-radius:36px
  }
  .carbon-layers {
    left:13%;
    width:70%
  }
  .carbon-mark {
    right:0;
    bottom:10px;
    font-size:33px
  }
  .surface-scene {
    min-height:430px;
    max-height:560px
  }
  .surface-product img {
    width:570px;
    height:570px;
    top:-6px
  }
  .appearance-layout {
    gap:50px
  }
  .buy-layout {
    gap:45px
  }
  .buy-visual {
    height:540px
  }
  .buy-visual img {
    width:570px;
    height:570px;
    top:-4px
  }
  .specs-layout {
    gap:50px
  }
  .zeus-intro {
    padding-block:58px 90px
  }
}

@media(max-width:1024px) and (min-width:768px) {
  .hero-product img {
    width:565px;
    left:-152px
  }
  .hero-product-angle img {
    left:-152px
  }
  .story-copy h2 {
    font-size:43px
  }
  .chapter-index {
    margin-bottom:20px;
    font-size:11px
  }
  .story-intro {
    font-size:14px
  }
  .story-step h3 {
    font-size:15px
  }
  .story-step p {
    font-size:12px
  }
  .core-diagram {
    height:460px
  }
  .carbon-scene {
    height:450px;
    min-height:0
  }
  .carbon-layers {
    height:65%;
    top:18%
  }
  .carbon-photo {
    height:78%;
    top:10%
  }
  .carbon-photo img {
    left:-460px
  }
  .surface-scene {
    height:460px;
    min-height:0
  }
  .surface-product img {
    width:495px;
    height:495px;
    top:-6px
  }
  .story-figure figcaption {
    font-size:10px
  }
  .story-progress {
    font-size:8px
  }
  .zeus-hero-visual {
    height:585px
  }
  .zeus-hero-visual img {
    width:710px
  }
  .appearance-layout {
    gap:35px
  }
  .color-description {
    font-size:20px
  }
  .specs-layout {
    grid-template-columns:.9fr 1.2fr;
    gap:40px
  }
  .spec-table {
    font-size:13px
  }
  .specs-intro>p:first-child {
    font-size:21px
  }
  .buy-layout {
    gap:25px
  }
  .buy-visual {
    height:500px
  }
  .buy-visual img {
    width:525px;
    height:525px
  }
  .buy-copy h2 {
    font-size:48px
  }
}

@media(max-width:767px) {
  .product-nav-brand {
    gap:13px
  }
  .product-nav-brand .wordmark {
    font-size:16px
  }
  .product-nav-name {
    font-size:18px
  }
  .nav-links .nav-pill {
    align-self:flex-start;
    min-height:36px;
    font-size:14px;
    margin-top:8px;
    padding-inline:21px
  }
  .hero-product img {
    width:405px;
    left:-115px
  }
  .hero-product-angle img {
    left:-116px
  }
  .zeus-hero {
    padding-top:45px
  }
  .zeus-hero .eyebrow {
    font-size:11px;
    letter-spacing:1px;
    margin-bottom:22px
  }
  .zeus-hero h1 {
    font-size:92px
  }
  .zeus-hero h1>span {
    font-size:17px;
    margin-left:14px
  }
  .zeus-tagline {
    font-size:19px;
    margin-top:23px
  }
  .zeus-hero .hero-copy>.text-link {
    font-size:13px;
    margin-top:12px
  }
  .zeus-hero-visual {
    height:445px;
    max-width:500px;
    margin-top:14px
  }
  .zeus-hero-visual img {
    width:505px;
    top:-1px;
    transform:translateX(-50%) rotate(-9deg)
  }
  .zeus-hero-visual figcaption {
    right:15px;
    font-size:9px;
    letter-spacing:2px;
    bottom:28px
  }
  .zeus-intro {
    display:block;
    padding-block:36px 65px
  }
  .zeus-intro>p {
    font-size:25px;
    line-height:1.5
  }
  .zeus-intro>.text-link {
    margin-top:20px
  }
  .story {
    height:205svh;
    min-height:1400px
  }
  .story-sticky {
    height:calc(100svh - var(--nav-height));
    min-height:704px
  }
  .story-inner {
    grid-template-columns:1fr;
    grid-template-rows:auto 1fr;
    gap:0;
    padding-top:17px;
    align-items:start;
    flex:1
  }
  .story-copy {
    padding-block:8px 0
  }
  .chapter-index {
    font-size:10px;
    letter-spacing:1px;
    margin-bottom:13px
  }
  .chapter-index span {
    margin-inline:7px
  }
  .story-copy h2 {
    font-size:37px;
    line-height:1.16
  }
  .story-copy h2 br {
    display:none
  }
  .story-intro {
    font-size:14px;
    line-height:1.7;
    margin-top:16px
  }
  .story-intro br {
    display:none
  }
  .story-steps {
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:20px;
    margin-top:22px
  }
  .story-step {
    padding-left:11px
  }
  .story-step h3 {
    font-size:13px;
    margin-bottom:6px
  }
  .story-step p {
    font-size:12px;
    line-height:1.7
  }
  .story-step p br {
    display:none
  }
  .story-figure {
    width:min(430px,100%);
    margin-inline:auto;
    align-self:center;
    margin-top:5px
  }
  .core-diagram {
    height:306px;
    width:100%
  }
  .story-figure figcaption {
    font-size:9px;
    line-height:1.55;
    margin-top:0;
    max-width:340px;
    padding-inline:5px
  }
  .story-figure figcaption>span {
    display:inline;
    font-size:10px;
    margin-right:6px
  }
  .story-progress {
    height:41px;
    gap:15px;
    font-size:8px;
    letter-spacing:1px;
    margin-top:8px
  }
  .carbon-scene {
    height:302px;
    min-height:0;
    width:min(355px,100%);
    margin:auto
  }
  .carbon-photo {
    width:52%;
    height:79%;
    left:24%;
    top:8%;
    border-radius:30px
  }
  .carbon-photo img {
    width:900px;
    height:900px;
    left:-325px;
    top:-140px
  }
  .carbon-photo span {
    font-size:9px;
    left:16px;
    bottom:14px
  }
  .carbon-layers {
    left:24%;
    width:53%;
    height:68%;
    top:15%
  }
  .carbon-layer {
    border-radius:23px
  }
  .carbon-layer b {
    font-size:9px;
    top:9px;
    left:15px
  }
  .carbon-mark {
    font-size:26px;
    right:3%;
    bottom:13px
  }
  .carbon-mark span {
    font-size:7px;
    letter-spacing:1px;
    margin-top:6px
  }
  .surface-scene {
    width:min(355px,100%);
    height:306px;
    min-height:0;
    margin-inline:auto
  }
  .surface-product img {
    width:335px;
    height:335px;
    top:-13px
  }
  .surface-macro>span {
    font-size:10px;
    left:20px;
    bottom:18px
  }
  .macro-grain {
    background-size:250px
  }
  .surface-figure figcaption {
    margin-top:10px
  }
  .appearance-heading h2 {
    font-size:37px
  }
  .appearance-layout {
    display:flex;
    flex-direction:column;
    gap:24px;
    margin-top:28px
  }
  .color-view {
    width:min(460px,100%)
  }
  .color-images {
    height:390px;
    aspect-ratio:auto
  }
  .color-image {
    object-fit:contain
  }
  .color-view figcaption {
    font-size:11px;
    margin-top:8px
  }
  .appearance-controls {
    width:100%;
    text-align:center
  }
  .color-model,.color-description {
    display:none
  }
  .color-picker {
    justify-content:center;
    margin-top:4px;
    gap:13px
  }
  .color-picker legend {
    text-align:center;
    font-size:12px;
    width:100%;
    margin-bottom:15px
  }
  .view-picker {
    margin-top:20px
  }
  .appearance-controls>.text-link {
    justify-content:center;
    margin-top:13px
  }
  .specs-heading h2 {
    font-size:35px
  }
  .specs-layout {
    grid-template-columns:1fr;
    gap:32px;
    margin-top:32px
  }
  .specs-intro>p:first-child {
    font-size:19px
  }
  .specs-intro>p:first-child br {
    display:none
  }
  .specs-note {
    font-size:11px;
    margin-top:13px
  }
  .spec-table {
    font-size:13px
  }
  .spec-table th,.spec-table td {
    padding-block:15px
  }
  .spec-table th {
    width:39%;
    padding-right:12px
  }
  .buy-section {
    padding-block:65px
  }
  .buy-layout {
    grid-template-columns:1fr;
    gap:24px
  }
  .buy-visual {
    height:343px
  }
  .buy-visual img {
    width:370px;
    height:370px;
    top:-12px
  }
  .buy-copy {
    max-width:360px;
    width:100%;
    margin:auto
  }
  .buy-copy h2 {
    font-size:44px
  }
  .buy-model {
    font-size:20px;
    margin-top:22px
  }
  .buy-copy .eyebrow {
    font-size:10px
  }
  .purchase-details {
    font-size:13px;
    margin-block:21px 25px
  }
  .buy-copy .button {
    font-size:14px
  }
  .buy-status {
    font-size:11px
  }
}

@media(max-width:390px) {
  .hero-product img {
    left:-120px
  }
  .hero-product-angle img {
    left:-120px
  }
  .story-copy h2 {
    font-size:35px
  }
  .story-steps {
    gap:12px
  }
  .color-images {
    height:355px
  }
  .zeus-hero h1 {
    font-size:84px
  }
  .zeus-hero-visual img {
    width:490px
  }
  .zeus-hero-visual {
    height:435px
  }
}

@media(max-height:740px) and (min-width:768px) {
  .story-sticky {
    min-height:580px
  }
  .story-copy h2 {
    font-size:42px
  }
  .story-intro {
    margin-top:18px;
    font-size:14px
  }
  .story-steps {
    gap:15px;
    margin-top:23px
  }
  .story-step h3 {
    font-size:15px
  }
  .story-step p {
    font-size:12px
  }
  .chapter-index {
    margin-bottom:16px
  }
  .core-diagram {
    height:430px
  }
  .carbon-scene {
    height:410px;
    min-height:0
  }
  .surface-scene {
    height:410px;
    min-height:0
  }
  .surface-product img {
    width:445px;
    height:445px;
    top:-13px
  }
  .story-progress {
    height:43px
  }
}

@media(max-height:740px) and (max-width:767px) {
  .story {
    height:auto;
    min-height:0;
    padding-block:40px 10px
  }
  .story-sticky {
    position:relative;
    top:auto;
    height:auto;
    min-height:0
  }
  .story-inner {
    padding-top:0
  }
  .story-figure {
    margin-top:22px
  }
  .story-progress {
    margin-top:15px
  }
}

@media(max-width:767px) {
  .home-hero h1>span {
    display:block
  }
  .hero-product-stage {
    gap:15px;
    height:397px
  }
  .hero-product {
    width:150px;
    height:380px
  }
  .hero-product img {
    width:370px;
    left:-110px;
    top:5px
  }
  .hero-product-angle img {
    left:-110px;
    top:5px
  }
  .hero-product-front {
    transform:rotate(-4deg) translateY(3px)
  }
  .hero-product-angle {
    transform:rotate(4deg)
  }
}

html {
  scroll-padding-top:var(--nav-height)
}

.carbon-layer:nth-child(1) {
  background:repeating-linear-gradient(30deg,#2e2e32 0 2px,#343438 2px 4px)
}

.carbon-layer:nth-child(2) {
  background:#49494f
}

.carbon-layer:nth-child(3) {
  background:#69696f
}

.carbon-layer:nth-child(4) {
  background:#929298
}

@media(max-width:767px) {
  .story-copy h2 br {
    display:block
  }
  .story-step h3 {
    font-size:14px
  }
  .story-step p {
    font-size:13px
  }
  .story-figure figcaption {
    font-size:10px
  }
}

.zeus-hero-visual {
  height:720px
}

@media(min-width:1600px) {
  .zeus-hero-visual {
    height:820px
  }
}

@media(max-width:1024px) and (min-width:768px) {
  .zeus-hero-visual {
    height:700px
  }
}

@media(max-width:767px) {
  .zeus-hero-visual {
    height:495px
  }
}

@media(max-width:390px) {
  .zeus-hero-visual {
    height:480px
  }
}

/* Reduced motion: no scroll pinning; all layers, both XGRIT views and every paragraph remain available. */
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto
  }
  *,*:before,*:after {
    animation:none!important;
    transition:none!important
  }
  .hero-copy,.hero-product-stage,[data-reveal] {
    opacity:1!important;
    translate:none!important
  }
  .choice-image:hover img {
    transform:translateX(-50%)
  }
  .story {
    height:auto;
    min-height:0;
    padding-block:65px 20px
  }
  .story-sticky {
    position:relative;
    top:0;
    height:auto;
    min-height:0
  }
  .story-inner {
    padding-block:0 30px
  }
  .story-step {
    opacity:1!important
  }
  .story-progress {
    display:none
  }
  .core-foam {
    transform:translate(-45px,-35px) rotate(-3deg)!important
  }
  .core-ring {
    transform:translate(25px,30px)!important
  }
  .carbon-photo {
    opacity:0!important
  }
  .carbon-layers {
    opacity:1!important
  }
  .carbon-layer:nth-child(1) {
    transform:translate(-18px,-70px)!important
  }
  .carbon-layer:nth-child(2) {
    transform:translate(-6px,-23px)!important
  }
  .carbon-layer:nth-child(3) {
    transform:translate(6px,23px)!important
  }
  .carbon-layer:nth-child(4) {
    transform:translate(18px,70px)!important
  }
  .surface-scene {
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:1px;
    background:#444
  }
  .surface-product,.surface-macro {
    position:relative;
    inset:auto;
    opacity:1!important;
    transform:none!important;
    min-width:0;
    height:100%
  }
  .surface-product img {
    width:500px;
    height:500px;
    top:25px
  }
  .focus-brackets {
    display:none
  }
  .macro-grain {
    transform:none!important
  }
  .carbon-figure figcaption:before {
    content:"另见外观选择中的真实产品拍面。";
    display:block;
    margin-bottom:5px
  }
}

@media(prefers-reduced-motion:reduce) and (max-width:767px) {
  .surface-product img {
    width:320px;
    height:320px;
    top:-4px
  }
  .story-inner {
    gap:20px
  }
  .story-figure {
    margin-top:0
  }
}

@media(prefers-reduced-motion:reduce) {
  .surface-product img {
    inset:0;
    transform:none;
    width:100%;
    height:100%;
    max-width:100%;
    object-fit:contain
  }
}

@media(max-width:767px) {
  .home-hero h1 wbr { display:none; }
  .story-copy h2 br { display:initial; }
}
@media(min-width:768px) and (max-width:1024px) {
  .hero-product { height:545px; }
}

/* Technical v2: original diagrams, never altered product photographs.
   The foam lifts for inspection, then returns inside the stationary EVA ring. */
.core-diagram-v2 {
  display:block;
  height:min(64vh,610px);
  overflow:visible;
  isolation:isolate;
}
.core-diagram-v2 .core-foam { transform:translateY(-50px); }
.core-diagram-v2 .core-ring { transform:none; }
.core-diagram-v2 .core-label text {
  font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:25px;
  font-weight:500;
  letter-spacing:2px;
  fill:#f0f1ed;
}
.core-diagram-v2 .core-label .diagram-sub {
  font-size:16px;
  font-weight:400;
  letter-spacing:1px;
  fill:#b1b5af;
}
.core-diagram-v2 .diagram-foot {
  font:10px Arial,sans-serif;
  letter-spacing:3px;
  fill:#858b86;
}
.home-core-figure { max-width:960px; margin-top:8px; }
.home-core-figure .core-diagram-v2 { height:auto; max-height:660px; min-height:0; }
.home-core-figure figcaption { color:#a5aaa5; }
.core-alignment { display:none; }

/* Low-angle faceted surface. The light and camera move with the scroll position.
   xgrit-relief.svg is a labelled illustration, not a microscope photograph. */
.grit-stage {
  position:absolute;
  inset:0;
  overflow:hidden;
  background:#131517;
  isolation:isolate;
}
.grit-plane {
  position:absolute;
  inset:-12% -30% -20%;
  transform:translate(-1%,1%) scale(1.1);
  transform-origin:50% 60%;
}
.grit-plane img { width:100%; height:100%; max-width:none; object-fit:cover; }
.grit-light {
  position:absolute;
  width:115%;
  height:155%;
  left:-7%;
  top:-20%;
  background:linear-gradient(90deg,transparent 20%,#e7eced08 36%,#e7eced33 50%,#e7eced05 66%,transparent 80%);
  mix-blend-mode:screen;
  opacity:.4;
  transform:translateX(-4%) rotate(-24deg);
  pointer-events:none;
}
.grit-horizon {
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,#131517 2%,#13151700 35%,#13151700 72%,#13151785 100%);
  pointer-events:none;
}
.surface-macro { background:#131517; }
.surface-macro:after { display:none; }
.grit-caption {
  position:absolute;
  left:28px;
  bottom:24px;
  display:flex;
  flex-direction:column;
  gap:8px;
  z-index:1;
  color:#e4e6e6;
}
.grit-caption>span { font-size:14px; letter-spacing:3px; }
.grit-caption small { font-size:10px; letter-spacing:1px; color:#b5b9ba; }
.surface-preview-v2 { min-height:740px; }
.surface-preview-v2 .grit-stage { left:24%; }
.surface-preview-v2 .grit-plane { inset:-14% -22% -18%; }
.surface-preview-v2:after {
  background:linear-gradient(90deg,#111113 5%,#111113f2 28%,#11111366 51%,#11111300 72%);
}
.surface-preview-v2 .surface-copy { padding-block:150px; }
.surface-preview-v2 .surface-caption { max-width:500px; }
@media(min-width:768px) and (max-width:1024px) {
  .core-diagram-v2 .core-label text { font-size:28px; }
  .core-diagram-v2 .core-label .diagram-sub { font-size:18px; }
  .grit-plane { inset:-8% -48% -8%; }
  .surface-preview-v2 .grit-stage { left:17%; }
}
@media(max-width:767px) {
  .core-diagram-v2 { height:300px; }
  .core-diagram-v2 .core-label text { font-size:28px; }
  .core-diagram-v2 .core-label .diagram-sub { font-size:21px; letter-spacing:0; }
  .core-diagram-v2 .diagram-foot { display:none; }
  .home-core-figure { margin-top:20px; }
  .home-core-figure .core-diagram-v2 { height:340px; }
  .surface-preview-v2 { min-height:800px; }
  .surface-preview-v2 .surface-copy { padding-block:78px 0; }
  .surface-preview-v2 .grit-stage { left:0; top:285px; }
  .surface-preview-v2 .grit-plane { inset:-9% -45% -5%; }
  .surface-preview-v2:after { background:linear-gradient(180deg,#111113 0%,#111113 29%,#11111300 60%); }
  .surface-preview-v2 .surface-caption { bottom:24px; }
  .grit-caption { left:20px; bottom:18px; gap:6px; }
  .grit-caption>span { font-size:12px; }
  .grit-caption small { font-size:9px; }
  .grit-plane { inset:-15% -25%; }
}
@media(max-height:740px) and (min-width:768px) {
  .core-diagram-v2 { height:410px; }
}
@media(prefers-reduced-motion:reduce) {
  .core-diagram-v2 .core-foam { transform:translateY(-100px)!important; }
  .core-diagram-v2 .core-ring { transform:none!important; }
  .grit-plane { transform:translate(0,-1%) scale(1.1)!important; }
  .grit-light { transform:translateX(0) rotate(-24deg)!important; opacity:.3!important; }
  .surface-scene { grid-template-columns:1fr; height:auto; min-height:0; gap:14px; background:transparent; overflow:visible; }
  .surface-product,.surface-macro { height:360px; }
  .surface-product { background:white; border-radius:5px; }
  .surface-macro { border-radius:5px; }
  .surface-product img { object-fit:contain; }
  .story-surface .story-figure { width:100%; }
}
@media(prefers-reduced-motion:reduce) and (max-width:767px) {
  .surface-product,.surface-macro { height:280px; }
}

/* 2026-09-11: original PORSVIK vector wordmark, not a replacement font. */
.wordmark { font-style:normal; letter-spacing:normal; flex-shrink:0; }
.wordmark .brand-wordmark { display:block; width:142px; height:auto; max-width:none; }
.product-nav-brand .wordmark .brand-wordmark { width:124px; }
.brand-signature { display:flex; align-items:center; gap:26px; margin-bottom:40px; }
.brand-signature img { display:block; height:auto; }
.brand-signature .brand-symbol { width:82px; }
.choice-specs { margin:18px 0 0; font-size:15px; line-height:1.65; color:var(--muted); font-variant-numeric:tabular-nums; }
.product-spec-list { margin:24px 0; }
.product-spec-list>div { display:flex; justify-content:space-between; gap:24px; padding:10px 0; border-bottom:1px solid var(--line,#d2d2d7); font-size:15px; }
.product-spec-list dd { margin:0; text-align:right; font-variant-numeric:tabular-nums; }
@media(max-width:767px){ .wordmark .brand-wordmark{width:122px}.product-nav-brand .wordmark .brand-wordmark{width:112px}.brand-signature{gap:20px;margin-bottom:32px}.brand-signature .brand-symbol{width:64px}.brand-signature img:last-child{width:176px} }