:root {
  --ink: #080506;
  --red: #bc1b23;
  --red-dark: #96141b;
  --paper: #ffffff;
  --mist: #f4f5f3;
  --line: #d9dcd8;
  --muted: #646a65;
  --green: #2f7550;
  --blue: #6aaed0;
  --yellow: #e3b83f;
  --mint: #b9e3c7;
  --coral: #ff675f;
  --scroll-progress: 0;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

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

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 8px 12px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(8, 5, 6, 0.12);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
}

.site-header::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(var(--scroll-progress));
  transform-origin: left;
}

.header-inner {
  width: min(calc(100% - 40px), var(--max));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 30px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.brand img {
  width: 138px;
  height: 54px;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}

.site-nav a {
  position: relative;
  font-size: 15px;
  font-weight: 650;
  white-space: nowrap;
}

.site-nav a:not(.button)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  border: 1px solid rgba(8, 5, 6, 0.34);
  border-radius: 4px;
  background:
    linear-gradient(var(--ink), var(--ink)) center 14px / 20px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) center 21px / 20px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) center 28px / 20px 2px no-repeat,
    var(--paper);
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}

.menu-toggle span {
  opacity: 0;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border: 1px solid var(--ink);
  border-radius: 4px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 720;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.button:hover {
  background: var(--red);
  border-color: var(--red);
  transform: translateY(-1px);
}

.button-red {
  background: var(--red);
  border-color: var(--red);
}

.button-red:hover {
  background: var(--red-dark);
  border-color: var(--red-dark);
}

.button-light {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--ink);
}

.container {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.section {
  padding: 92px 0;
}

.section-muted {
  background: var(--mist);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--red);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.16;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(42px, 6vw, 76px);
}

h2 {
  font-size: clamp(30px, 4vw, 48px);
}

h3 {
  font-size: 22px;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 460px);
  gap: 60px;
  align-items: end;
  margin-bottom: 42px;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}

.hero {
  --hero-x: 0px;
  --hero-y: 0px;
  position: relative;
  overflow: hidden;
  min-height: 88svh;
  display: flex;
  align-items: center;
  background-color: #f7f3ef;
  border-bottom: 1px solid var(--line);
}

.hero-backdrop {
  position: absolute;
  inset: -20px;
  background-image: url("/assets/home-hero-youth-v3.webp");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  transform: translate3d(var(--hero-x), var(--hero-y), 0) scale(1.035);
  transition: transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
  animation: hero-image-in 1.2s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero::before {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0 auto 0 0;
  width: 64%;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.9) 66%, rgba(255, 255, 255, 0) 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0));
}

.hero::after {
  content: "";
  position: absolute;
  right: clamp(22px, 5vw, 84px);
  bottom: 42px;
  z-index: 1;
  width: clamp(90px, 10vw, 150px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 50%;
  box-shadow: 0 0 0 14px rgba(188, 27, 35, 0.12), 0 0 0 28px rgba(255, 255, 255, 0.12);
  animation: hero-orbit 5s ease-in-out infinite;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 88px 0 112px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 48px;
  align-items: end;
}

.hero-copy {
  max-width: 690px;
}

.hero-copy > * {
  animation: hero-copy-in 700ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-copy > :nth-child(2) {
  animation-delay: 80ms;
}

.hero-copy > :nth-child(3) {
  animation-delay: 160ms;
}

.hero-copy > :nth-child(4) {
  animation-delay: 240ms;
}

.hero-copy > :nth-child(5) {
  animation-delay: 300ms;
}

.hero-copy > :nth-child(6) {
  animation-delay: 360ms;
}

.hero .eyebrow {
  display: inline-block;
  padding: 5px 9px;
  background: var(--paper);
}

.hero-status {
  display: inline-flex !important;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(8, 5, 6, 0.1);
  box-shadow: 0 8px 24px rgba(8, 5, 6, 0.06);
}

.hero-status > span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #36aa63;
  box-shadow: 0 0 0 0 rgba(54, 170, 99, 0.5);
  animation: status-pulse 2s ease-out infinite;
}

.hero h1 {
  max-width: 680px;
  margin-bottom: 22px;
  font-size: clamp(50px, 5.65vw, 78px);
}

.hero-accent {
  position: relative;
  z-index: 0;
  display: inline-block;
  color: var(--paper);
}

.hero-accent::before {
  content: "";
  position: absolute;
  inset: 7% -0.08em 2%;
  z-index: -1;
  background: var(--red);
  transform: rotate(-1.2deg) skewX(-4deg);
}

.hero .hero-lead {
  max-width: 600px;
  margin: 0 0 24px;
  color: #343936;
  font-size: clamp(18px, 1.7vw, 21px);
}

.hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.hero-highlights span {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  border: 1px solid rgba(8, 5, 6, 0.16);
  background: rgba(255, 255, 255, 0.82);
  color: #252825;
  font-size: 13px;
  font-weight: 760;
  box-shadow: 0 8px 22px rgba(8, 5, 6, 0.05);
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.hero-highlights span:hover {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-2px);
}

.hero .hero-note {
  max-width: 580px;
  margin: 16px 0 0;
  color: #69706a;
  font-size: 12px;
}

.hero-proof {
  align-self: end;
  margin-bottom: -32px;
  border-top: 4px solid var(--red);
  background: rgba(8, 5, 6, 0.88);
  color: var(--paper);
  box-shadow: 0 24px 60px rgba(8, 5, 6, 0.18);
  backdrop-filter: blur(10px);
  animation: hero-copy-in 800ms 300ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-proof div {
  position: relative;
  overflow: hidden;
  padding: 18px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.hero-proof div::after {
  content: "";
  position: absolute;
  inset: auto 20px 0;
  height: 2px;
  background: linear-gradient(90deg, var(--coral), var(--yellow), var(--mint));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 260ms ease;
}

.hero-proof div:hover::after {
  transform: scaleX(1);
}

.hero-proof div:last-child {
  border-bottom: 0;
}

.hero-proof strong,
.hero-proof span {
  display: block;
}

.hero-proof strong {
  font-size: 17px;
}

.hero-proof span {
  margin-top: 2px;
  color: #c7ccc8;
  font-size: 12px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-scroll {
  position: absolute;
  bottom: 24px;
  left: 0;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #555b56;
  font-size: 10px;
  font-weight: 800;
}

.hero-scroll span {
  width: 34px;
  height: 1px;
  overflow: hidden;
  background: rgba(8, 5, 6, 0.25);
}

.hero-scroll span::after {
  content: "";
  display: block;
  width: 50%;
  height: 100%;
  background: var(--red);
  animation: scroll-line 1.8s ease-in-out infinite;
}

.proof-strip {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.proof-grid {
  min-height: 94px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-items: center;
}

.proof-item {
  position: relative;
  padding: 18px 28px;
  border-right: 1px solid var(--line);
}

.proof-item::before {
  content: "";
  position: absolute;
  top: 0;
  right: 18px;
  left: 18px;
  height: 3px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms ease;
}

.proof-item:hover::before {
  transform: scaleX(1);
}

.proof-item:first-child {
  padding-left: 0;
}

.proof-item:last-child {
  border-right: 0;
}

.proof-item strong {
  display: block;
  color: var(--red);
  font-size: 19px;
}

.proof-item span {
  color: var(--muted);
  font-size: 13px;
}

.motion-ribbon {
  overflow: hidden;
  border-bottom: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.motion-ribbon-track {
  width: max-content;
  min-height: 56px;
  display: flex;
  align-items: center;
  gap: 28px;
  padding-right: 28px;
  animation: ribbon-move 26s linear infinite;
}

.motion-ribbon span {
  font-size: 15px;
  font-weight: 800;
  white-space: nowrap;
}

.motion-ribbon i {
  color: var(--coral);
  font-size: 24px;
  font-style: normal;
}

.home-advantages {
  position: relative;
  overflow: hidden;
  padding-top: 108px;
}

.home-advantages::before {
  content: "MIXIAOQI";
  position: absolute;
  top: 46px;
  right: -20px;
  color: rgba(8, 5, 6, 0.035);
  font-size: clamp(72px, 13vw, 190px);
  font-weight: 900;
  line-height: 1;
  pointer-events: none;
}

.advantages-head h2 {
  margin-bottom: 0;
  font-size: clamp(36px, 4.5vw, 56px);
}

.advantage-layout {
  display: grid;
  grid-template-columns: minmax(360px, 0.82fr) minmax(0, 1.18fr);
  gap: 72px;
  align-items: start;
}

.advantage-visual {
  position: sticky;
  top: 110px;
  overflow: hidden;
  background: #eef3f6;
  transform: perspective(1200px) rotateX(var(--tilt-y, 0deg)) rotateY(var(--tilt-x, 0deg));
  transform-style: preserve-3d;
  transition: transform 180ms ease;
}

.advantage-product-scene {
  position: relative;
  min-height: 510px;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(222, 233, 239, 0.78)),
    #e7eff3;
}

.advantage-food {
  position: absolute;
  right: -18%;
  bottom: -16%;
  width: 96%;
  max-width: none;
  filter: drop-shadow(0 28px 32px rgba(8, 5, 6, 0.15));
  animation: product-float 5.8s ease-in-out infinite;
}

.advantage-pack {
  position: absolute;
  width: 39%;
  aspect-ratio: 0.88;
  object-fit: cover;
  border: 8px solid var(--paper);
  box-shadow: 0 20px 38px rgba(8, 5, 6, 0.15);
}

.advantage-pack-cat {
  top: 34px;
  left: 34px;
  transform: translateZ(26px) rotate(-4deg);
}

.advantage-pack-dog {
  top: 68px;
  left: 38%;
  transform: translateZ(42px) rotate(4deg);
}

.advantage-visual-copy {
  position: relative;
  z-index: 2;
  padding: 26px 30px 30px;
  background: var(--ink);
  color: var(--paper);
}

.advantage-visual-copy span,
.advantage-visual-copy strong,
.advantage-visual-copy a {
  display: block;
}

.advantage-visual-copy span {
  margin-bottom: 8px;
  color: #e9666d;
  font-size: 11px;
  font-weight: 800;
}

.advantage-visual-copy strong {
  font-size: clamp(24px, 2.7vw, 34px);
  line-height: 1.25;
}

.advantage-visual-copy a {
  width: max-content;
  margin-top: 18px;
  color: var(--paper);
}

.advantage-list {
  border-top: 1px solid var(--line);
}

.advantage-item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  transition: padding 200ms ease, background 200ms ease, transform 200ms ease;
}

.advantage-item:hover {
  padding-right: 18px;
  padding-left: 18px;
  background: #f7f8f6;
  transform: translateX(8px);
}

.advantage-item > span {
  color: var(--red);
  font-size: 16px;
  font-weight: 850;
  transition: transform 200ms ease;
}

.advantage-item:hover > span {
  transform: scale(1.25) rotate(-4deg);
}

.advantage-item h3 {
  margin-bottom: 7px;
  font-size: 25px;
}

.advantage-item p {
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.advantage-disclaimer {
  margin: 24px 0 0 calc(0.82 / 2 * 100%);
  color: var(--muted);
  font-size: 12px;
}

.research-band {
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(185, 227, 199, 0.28), transparent 36%),
    #f7f8f5;
  border-bottom: 1px solid var(--line);
}

.research-layout {
  display: grid;
  grid-template-columns: minmax(460px, 1.05fr) minmax(0, 0.95fr);
  gap: 64px;
  align-items: center;
}

.research-experts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.research-experts figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(8, 5, 6, 0.13);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 48px rgba(8, 5, 6, 0.07);
  transition: border-color 240ms ease, box-shadow 240ms ease, transform 240ms ease;
}

.research-experts figure:hover {
  z-index: 2;
  border-color: rgba(188, 27, 35, 0.42);
  box-shadow: 0 24px 56px rgba(8, 5, 6, 0.11);
  transform: translateX(8px);
}

.expert-trigger {
  position: relative;
  width: 100%;
  min-height: 212px;
  display: grid;
  grid-template-columns: 176px minmax(0, 1fr);
  align-items: stretch;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.expert-photo {
  position: relative;
  min-height: 212px;
  display: block;
  overflow: hidden;
  background: #dfe8ed;
}

.research-experts .expert-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 500ms cubic-bezier(0.22, 1, 0.36, 1), filter 500ms ease;
}

.expert-number {
  position: absolute;
  top: 12px;
  left: 12px;
  min-width: 36px;
  min-height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--red);
  color: var(--paper);
  font-size: 11px;
  font-weight: 850;
}

.expert-card-copy {
  min-width: 0;
  display: flex;
  justify-content: center;
  flex-direction: column;
  padding: 24px 26px;
  text-align: left;
}

.expert-card-copy > * {
  display: block;
}

.expert-school {
  margin-bottom: 8px;
  color: var(--red);
  font-size: 11px;
  font-weight: 850;
}

.expert-card-copy > strong {
  margin-bottom: 3px;
  font-size: 29px;
  line-height: 1.15;
}

.expert-title {
  color: #303632;
  font-size: 13px;
  font-weight: 720;
}

.expert-focus {
  margin-top: 14px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.expert-card-copy small {
  margin-top: 14px;
  color: var(--ink);
  font-size: 11px;
  font-weight: 800;
}

.expert-card-copy small b {
  display: inline-block;
  margin-left: 4px;
  color: var(--red);
  font-size: 15px;
  transition: transform 200ms ease;
}

.expert-trigger:hover .expert-photo img,
.expert-trigger:focus-visible .expert-photo img {
  filter: saturate(1.05) contrast(1.02);
  transform: scale(1.045);
}

.expert-trigger:hover .expert-card-copy small b,
.expert-trigger:focus-visible .expert-card-copy small b {
  transform: translateX(5px);
}

.expert-trigger:focus-visible {
  outline: 3px solid var(--red);
  outline-offset: -3px;
}

.research-experts figure::after,
.expert-profile::after {
  content: "";
  position: absolute;
  inset: 8px;
  z-index: 3;
  border: 2px solid rgba(201, 31, 43, 0.7);
  pointer-events: none;
  opacity: 0;
}

.research-experts figure.is-activated::after,
.expert-profile.is-activated::after {
  animation: expert-pulse 620ms ease-out;
}

.research-copy h2 {
  max-width: 720px;
  margin-bottom: 22px;
}

.research-lead {
  max-width: 740px;
  color: #3f4541;
  font-size: 19px;
}

.research-points,
.research-data {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.research-points > div {
  padding: 20px 22px;
  border-right: 1px solid var(--line);
}

.research-points > div:first-child {
  padding-left: 0;
}

.research-points > div:last-child {
  border-right: 0;
}

.research-points strong,
.research-points span {
  display: block;
}

.research-points strong {
  margin-bottom: 7px;
  color: var(--red);
  font-size: 17px;
}

.research-points span {
  color: var(--muted);
  font-size: 14px;
}

.research-data {
  margin-bottom: 28px;
}

.research-data > div {
  padding: 18px 20px;
  border-right: 1px solid var(--line);
}

.research-data > div:first-child {
  padding-left: 0;
}

.research-data > div:last-child {
  border-right: 0;
}

.research-data strong,
.research-data span {
  display: block;
}

.research-data strong {
  color: var(--red);
  font-size: 28px;
  line-height: 1.2;
}

.research-data span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
}

.research-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.research-points-compact {
  margin: 28px 0;
}

.product-hero {
  padding: 78px 0;
  overflow: hidden;
  background: #eef5fb;
  border-bottom: 1px solid var(--line);
}

.product-hero-layout {
  min-height: 520px;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(400px, 1.05fr);
  gap: 50px;
  align-items: center;
}

.product-hero h1 {
  margin-bottom: 24px;
  font-size: clamp(40px, 4.3vw, 58px);
}

.product-hero p {
  max-width: 650px;
  color: #3e4540;
  font-size: 19px;
}

.product-hero-media {
  margin: 0;
  text-align: center;
}

.product-hero-media img {
  width: 100%;
  max-height: 520px;
  object-fit: contain;
}

.product-hero-media figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
}

.product-showcase {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-items: end;
}

.product-showcase img {
  min-width: 0;
  aspect-ratio: 0.9;
  padding: 12px;
  object-fit: contain;
  background: var(--paper);
  border: 1px solid rgba(8, 5, 6, 0.08);
  border-radius: 6px;
}

.product-showcase img:nth-child(2) {
  transform: translateY(26px);
}

.product-showcase figcaption {
  grid-column: 1 / -1;
  margin-top: 20px;
}

.benefit-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.benefit-list article {
  min-height: 245px;
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.benefit-list article > span {
  display: block;
  margin-bottom: 56px;
  color: var(--red);
  font-size: 28px;
  font-weight: 800;
}

.benefit-list h3 {
  margin-bottom: 10px;
}

.benefit-list p {
  margin: 0;
  color: var(--muted);
}

.ingredient-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 64px;
  align-items: center;
}

.ingredient-layout > img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.texture-pair {
  display: grid;
  grid-template-columns: 1fr 0.72fr;
  gap: 12px;
  align-items: end;
}

.texture-pair img {
  width: 100%;
  min-height: 300px;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 6px;
}

.texture-pair img:last-child {
  min-height: 240px;
}

.texture-ai {
  min-height: 480px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(8, 5, 6, 0.08);
  border-radius: 6px;
  background:
    radial-gradient(circle at 38% 30%, rgba(255, 255, 255, 0.98), rgba(236, 240, 241, 0.82) 58%, rgba(218, 224, 225, 0.9));
}

.texture-ai img,
.texture-ai img:last-child {
  width: 94%;
  min-height: 0;
  max-height: 470px;
  aspect-ratio: auto;
  object-fit: contain;
  filter: drop-shadow(0 24px 22px rgba(8, 5, 6, 0.14));
  transform: translateX(16%) scale(1.72);
}

.research-hero {
  padding: 100px 0 80px;
  background: var(--ink);
  color: var(--paper);
}

.research-hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.58fr);
  gap: 80px;
  align-items: end;
}

.research-hero h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(42px, 5vw, 66px);
}

.research-hero p {
  max-width: 720px;
  color: #c9ceca;
  font-size: 20px;
}

.agreement-panel {
  padding: 30px;
  border-top: 5px solid var(--red);
  background: #171415;
}

.agreement-panel time,
.agreement-panel strong,
.agreement-panel span {
  display: block;
}

.agreement-panel time {
  margin-bottom: 30px;
  color: #aeb3af;
  font-size: 14px;
}

.agreement-panel strong {
  margin-bottom: 12px;
  font-size: 23px;
}

.agreement-panel span {
  color: #bdc1bd;
}

.expert-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.expert-profile {
  position: relative;
  display: grid;
  grid-template-columns: minmax(170px, 0.38fr) minmax(0, 0.62fr);
  min-height: 390px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.expert-profile-photo {
  position: relative;
  min-height: 100%;
}

.expert-profile-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 500ms cubic-bezier(0.22, 1, 0.36, 1), filter 500ms ease;
}

.expert-profile-photo > span {
  position: absolute;
  right: 14px;
  bottom: 14px;
  left: 14px;
  padding: 10px 12px;
  background: rgba(8, 5, 6, 0.82);
  color: var(--paper);
  font-size: 12px;
  text-align: center;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 300ms ease, transform 300ms ease;
}

.expert-profile-photo:hover > span,
.expert-profile-photo:focus-visible > span {
  opacity: 1;
  transform: translateY(0);
}

.expert-dialog {
  width: min(calc(100% - 32px), 820px);
  max-height: min(720px, calc(100svh - 40px));
  padding: 0;
  overflow: hidden;
  border: 0;
  border-top: 5px solid var(--red);
  border-radius: 0;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 24px 80px rgba(8, 5, 6, 0.3);
  opacity: 0;
  transform: translateY(20px) scale(0.97);
  transition: opacity 260ms ease, transform 260ms cubic-bezier(0.22, 1, 0.36, 1);
}

.expert-dialog[open] {
  opacity: 1;
  transform: translateY(0) scale(1);
}

@starting-style {
  .expert-dialog[open] {
    opacity: 0;
    transform: translateY(20px) scale(0.97);
  }
}

.expert-dialog::backdrop {
  background: rgba(8, 5, 6, 0.72);
}

.expert-dialog-layout {
  display: grid;
  grid-template-columns: minmax(240px, 0.42fr) minmax(0, 0.58fr);
  min-height: 450px;
}

.expert-dialog-layout > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.expert-dialog-copy {
  align-self: center;
  padding: 54px 46px;
}

.expert-dialog-copy h2 {
  margin-bottom: 12px;
  font-size: 36px;
}

.expert-dialog-copy > p:not(.eyebrow) {
  color: var(--muted);
}

.expert-dialog-role {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  color: var(--ink) !important;
  font-weight: 700;
}

.expert-dialog-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 4;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--paper);
  color: var(--ink);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}

.expert-dialog-close:hover,
.expert-dialog-close:focus-visible {
  border-color: var(--red);
  color: var(--red);
}

@keyframes hero-image-in {
  from {
    opacity: 0;
    transform: scale(1.08);
  }
}

@keyframes hero-orbit {
  0%,
  100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-10px) scale(1.04);
  }
}

@keyframes status-pulse {
  70% {
    box-shadow: 0 0 0 8px rgba(54, 170, 99, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(54, 170, 99, 0);
  }
}

@keyframes scroll-line {
  0% {
    transform: translateX(-120%);
  }
  60%,
  100% {
    transform: translateX(220%);
  }
}

@keyframes ribbon-move {
  to {
    transform: translateX(-50%);
  }
}

@keyframes product-float {
  0%,
  100% {
    transform: translateY(0) rotate(-1deg);
  }
  50% {
    transform: translateY(-12px) rotate(1deg);
  }
}

@keyframes hero-copy-in {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
}

@keyframes expert-pulse {
  0% {
    opacity: 0;
    transform: scale(0.94);
  }
  45% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: scale(1.02);
  }
}

.expert-profile > div {
  padding: 34px;
}

.expert-profile h3 {
  margin-bottom: 8px;
  font-size: 30px;
}

.expert-profile p {
  color: var(--muted);
}

.expert-role {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  color: var(--ink) !important;
  font-weight: 700;
}

.research-story {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 64px;
  align-items: center;
}

.evidence-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: 60px;
  align-items: center;
}

.evidence-media {
  margin: 0;
}

.evidence-media img {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.evidence-media figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
}

.research-story-media {
  display: grid;
  grid-template-columns: 1fr 0.65fr;
  gap: 12px;
  align-items: end;
}

.research-story-media img:first-child {
  width: 100%;
  min-height: 430px;
  object-fit: cover;
}

.research-story-media img:last-child {
  width: 100%;
  padding: 18px;
  background: var(--paper);
}

.research-data-dark {
  background: var(--ink);
  border: 0;
}

.research-data-dark > div {
  border-color: #393536;
  padding: 22px;
}

.research-data-dark > div:first-child {
  padding-left: 22px;
}

.research-data-dark span {
  color: #bfc4c0;
}

.research-process .process-step {
  min-height: 230px;
}

.product-grid,
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.product-card,
.article-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  box-shadow: 0 12px 30px rgba(8, 5, 6, 0.045);
  transform: perspective(1000px) rotateX(var(--tilt-y, 0deg)) rotateY(var(--tilt-x, 0deg)) translateY(var(--card-lift, 0px));
  transform-style: preserve-3d;
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}

.product-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 2;
  height: 5px;
  background: var(--red);
}

.product-card:nth-child(2)::before {
  background: var(--green);
}

.product-card:nth-child(3)::before {
  background: var(--yellow);
}

.product-card:hover,
.article-card:hover {
  border-color: #bcc1bd;
  box-shadow: 0 20px 48px rgba(8, 5, 6, 0.09);
  --card-lift: -7px;
}

.home-product-showcase {
  position: relative;
  overflow: hidden;
}

.home-product-showcase::after {
  content: "";
  position: absolute;
  right: -7vw;
  bottom: 36px;
  z-index: -1;
  width: 22vw;
  min-width: 220px;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    repeating-radial-gradient(circle at center, transparent 0 12px, rgba(188, 27, 35, 0.07) 13px 14px);
}

.product-video-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(370px, 0.92fr);
  gap: 28px;
  align-items: start;
}

.product-grid-featured {
  min-width: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.product-grid-featured .product-card,
.product-grid-featured .product-card-body {
  min-width: 0;
  max-width: 100%;
}

.product-grid-featured .product-card p {
  overflow-wrap: anywhere;
}

.product-grid-featured .product-card:first-child {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(230px, 0.9fr) minmax(0, 1.1fr);
}

.product-grid-featured .product-card:first-child > img {
  height: 100%;
  min-height: 270px;
  aspect-ratio: auto;
}

.product-grid-featured .product-card:not(:first-child) .product-card-body {
  padding: 20px;
}

.product-grid-featured .product-card:not(:first-child) h3 {
  font-size: 20px;
}

.product-grid-featured .product-card:not(:first-child) p {
  font-size: 14px;
}

.factory-video-case {
  position: sticky;
  top: 104px;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  box-shadow: 0 24px 64px rgba(8, 5, 6, 0.16);
}

.video-case-head {
  padding: 25px 26px 22px;
}

.video-case-head .eyebrow {
  margin-bottom: 7px;
  color: #f2787e;
}

.video-case-head h3 {
  margin-bottom: 8px;
  color: var(--paper);
  font-size: 28px;
}

.video-case-head > p:last-child {
  margin: 0;
  color: #bfc4c0;
  font-size: 13px;
}

.factory-video-stage {
  position: relative;
  overflow: hidden;
  background: #000;
}

.factory-video-stage video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #000;
}

.factory-video-stage > span {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 5px 8px;
  background: rgba(8, 5, 6, 0.72);
  color: var(--paper);
  font-size: 10px;
  font-weight: 800;
  pointer-events: none;
}

.video-case-list {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.video-case-item {
  position: relative;
  width: 100%;
  min-height: 82px;
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  padding: 12px 18px;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0;
  background: transparent;
  color: var(--paper);
  text-align: left;
  cursor: pointer;
  transition: background 180ms ease;
}

.video-case-item:last-child {
  border-bottom: 0;
}

.video-case-item::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: var(--red);
  transform: scaleY(0);
  transition: transform 180ms ease;
}

.video-case-item:hover,
.video-case-item.is-active {
  background: #211b1d;
}

.video-case-item.is-active::before {
  transform: scaleY(1);
}

.video-case-item img {
  width: 104px;
  height: 58px;
  object-fit: cover;
  opacity: 0.78;
  transition: opacity 180ms ease, transform 180ms ease;
}

.video-case-item:hover img,
.video-case-item.is-active img {
  opacity: 1;
  transform: scale(1.03);
}

.video-case-item span,
.video-case-item small,
.video-case-item strong,
.video-case-item em {
  display: block;
}

.video-case-item small {
  margin-bottom: 2px;
  color: #f2787e;
  font-size: 9px;
  font-weight: 850;
}

.video-case-item strong {
  font-size: 14px;
}

.video-case-item em {
  margin-top: 2px;
  color: #aeb4af;
  font-size: 10px;
  font-style: normal;
}

[data-reveal] {
  opacity: 0;
  translate: 0 34px;
  transition: opacity 720ms cubic-bezier(0.22, 1, 0.36, 1), translate 720ms cubic-bezier(0.22, 1, 0.36, 1);
}

[data-reveal].is-visible {
  opacity: 1;
  translate: 0 0;
}

.advantage-item[data-reveal]:nth-child(2),
.product-card[data-reveal]:nth-child(2),
.research-experts figure[data-reveal]:nth-child(2) {
  transition-delay: 100ms;
}

.advantage-item[data-reveal]:nth-child(3),
.product-card[data-reveal]:nth-child(3) {
  transition-delay: 180ms;
}

.advantage-item[data-reveal]:nth-child(4) {
  transition-delay: 260ms;
}

.advantage-item[data-reveal]:nth-child(5) {
  transition-delay: 340ms;
}

.product-card img,
.article-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 500ms cubic-bezier(0.22, 1, 0.36, 1);
}

.product-card:hover img,
.article-card:hover img {
  transform: scale(1.025);
}

.product-card-body,
.article-card-body {
  padding: 24px;
}

.product-card h3,
.article-card h3 {
  margin-bottom: 10px;
}

.product-card p,
.article-card p {
  margin: 0 0 18px;
  color: var(--muted);
}

.text-link {
  color: var(--red);
  font-weight: 760;
}

.capability-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  gap: 64px;
  align-items: center;
}

.capability-media {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 12px;
}

.capability-media img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  border-radius: 6px;
}

.capability-media img:nth-child(2) {
  margin-top: 46px;
}

.media-note {
  grid-column: 1 / -1;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.factory-gallery-section {
  padding-top: 24px;
}

.factory-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.factory-gallery figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
}

.factory-gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.factory-gallery figcaption {
  padding: 18px 20px;
}

.factory-gallery strong,
.factory-gallery span {
  display: block;
}

.factory-gallery span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
}

.fact-list {
  display: grid;
  gap: 0;
  margin-top: 28px;
  border-top: 1px solid var(--line);
}

.fact {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.fact strong {
  color: var(--red);
  font-size: 20px;
}

.fact span {
  color: var(--muted);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.process-step {
  min-height: 210px;
  padding: 28px;
  background: var(--paper);
}

.process-number {
  display: block;
  margin-bottom: 30px;
  color: var(--red);
  font-size: 34px;
  font-weight: 850;
}

.process-step p {
  margin: 0;
  color: var(--muted);
}

.quality-band {
  background: var(--ink);
  color: var(--paper);
}

.quality-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 70px;
  align-items: center;
}

.quality-layout p {
  color: #cfd2cf;
}

.quality-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid #343434;
  border-left: 1px solid #343434;
}

.quality-item {
  min-height: 134px;
  padding: 24px;
  border-right: 1px solid #343434;
  border-bottom: 1px solid #343434;
}

.quality-item strong {
  display: block;
  margin-bottom: 8px;
  font-size: 20px;
}

.quality-item span {
  color: #aeb3af;
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.certificate-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
}

.certificate-card > a {
  display: block;
  padding: 18px;
  background: var(--mist);
}

.certificate-card img {
  width: 100%;
  height: 320px;
  object-fit: contain;
  background: var(--paper);
}

.certificate-card > div {
  padding: 22px;
}

.certificate-card h3 {
  margin-bottom: 14px;
}

.certificate-card p {
  margin: 6px 0;
  color: var(--muted);
  font-size: 14px;
}

.certificate-card p strong {
  color: var(--ink);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 13px;
}

.article-card img {
  aspect-ratio: 16 / 10;
}

.cta-section {
  border-top: 1px solid var(--line);
}

.cta-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 70px;
}

.contact-list {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.contact-list li {
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.inquiry-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.field {
  display: grid;
  gap: 7px;
}

.field-full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 14px;
  font-weight: 720;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 50px;
  padding: 11px 13px;
  border: 1px solid #bfc4bf;
  border-radius: 4px;
  background: var(--paper);
  color: var(--ink);
}

.field textarea {
  min-height: 132px;
  resize: vertical;
}

.form-result {
  display: none;
  grid-column: 1 / -1;
  padding: 18px;
  border: 1px solid var(--green);
  background: #eff8f2;
}

.form-result.is-visible {
  display: block;
}

.site-footer {
  padding: 58px 0 24px;
  background: var(--ink);
  color: var(--paper);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr repeat(3, 0.7fr);
  gap: 46px;
}

.footer-brand img {
  width: 150px;
  height: 66px;
  object-fit: contain;
  background: var(--paper);
}

.footer-brand p,
.footer-col a,
.footer-col span {
  color: #aeb3af;
}

.footer-col strong {
  display: block;
  margin-bottom: 12px;
}

.footer-col a,
.footer-col span {
  display: block;
  margin: 8px 0;
  font-size: 14px;
}

.footer-bottom {
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid #343434;
  color: #8d938e;
  font-size: 13px;
}

.footer-bottom a {
  color: inherit;
  text-decoration: none;
}

.footer-bottom a:hover {
  color: #fff;
}

.page-hero {
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--line);
  background: var(--mist);
}

.page-hero h1 {
  max-width: 900px;
  margin-bottom: 18px;
  font-size: clamp(40px, 6vw, 70px);
}

.page-hero p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 19px;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 70px;
}

.side-nav {
  position: sticky;
  top: 108px;
  align-self: start;
  padding: 20px 0;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.side-nav a {
  display: block;
  padding: 8px 0;
  color: var(--muted);
}

.content-block + .content-block {
  margin-top: 64px;
}

.content-block p,
.article-body p {
  color: #404642;
}

.content-block img {
  width: 100%;
  margin: 26px 0;
  border-radius: 6px;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 34px;
}

.filter-button {
  min-height: 42px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper);
  cursor: pointer;
}

.filter-button.is-active,
.filter-button:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.article-card[hidden] {
  display: none;
}

.article-shell {
  width: min(calc(100% - 40px), 920px);
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 14px;
}

.article-header {
  padding: 72px 0 46px;
}

.article-header h1 {
  margin-bottom: 22px;
  font-size: clamp(38px, 6vw, 64px);
}

.article-summary {
  margin: 0 0 24px;
  color: #303632;
  font-size: 20px;
}

.article-cover {
  width: min(calc(100% - 40px), 1180px);
  margin: 0 auto 60px;
  max-height: 620px;
  object-fit: cover;
  border-radius: 6px;
}

.article-layout {
  width: min(calc(100% - 40px), 1180px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 230px minmax(0, 780px);
  gap: 70px;
  justify-content: center;
}

.article-toc {
  position: sticky;
  top: 108px;
  align-self: start;
  border-top: 2px solid var(--ink);
}

.article-toc strong {
  display: block;
  padding: 14px 0 8px;
}

.article-toc a {
  display: block;
  padding: 7px 0;
  color: var(--muted);
  font-size: 14px;
}

.article-body {
  min-width: 0;
}

.article-body h2 {
  margin-top: 60px;
  margin-bottom: 20px;
  font-size: 34px;
}

.article-body h3 {
  margin-top: 36px;
}

.article-body p,
.article-body li {
  font-size: 18px;
}

.article-body img {
  width: 100%;
  margin: 30px 0;
  border-radius: 6px;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 26px 0;
}

.article-body th,
.article-body td {
  padding: 13px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.article-body th {
  background: var(--mist);
}

.key-points {
  margin: 34px 0;
  padding: 24px 26px;
  border-left: 4px solid var(--red);
  background: var(--mist);
}

.faq-list details {
  border-top: 1px solid var(--line);
}

.faq-list details:last-child {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  padding: 18px 0;
  font-weight: 740;
  cursor: pointer;
}

.faq-list details p {
  margin-top: 0;
}

@media (max-width: 1020px) {
  .site-nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    display: none;
    align-items: stretch;
    padding: 18px 20px 24px;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
  }

  .site-nav.is-open {
    display: grid;
  }

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

  .site-nav a:not(.button)::after {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .section-head,
  .hero-content,
  .advantage-layout,
  .capability-layout,
  .research-layout,
  .product-hero-layout,
  .ingredient-layout,
  .research-hero-layout,
  .research-story,
  .evidence-layout,
  .quality-layout,
  .cta-layout,
  .two-column {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-proof {
    max-width: 690px;
    margin-bottom: 0;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .hero-proof div {
    border-right: 1px solid rgba(255, 255, 255, 0.14);
    border-bottom: 0;
  }

  .hero-proof div:last-child {
    border-right: 0;
  }

  .advantage-visual {
    position: static;
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr);
  }

  .advantage-product-scene {
    min-height: 440px;
  }

  .advantage-visual-copy {
    display: flex;
    justify-content: center;
    flex-direction: column;
  }

  .advantage-disclaimer {
    margin-left: 0;
  }

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

  .product-video-layout {
    grid-template-columns: 1fr;
  }

  .factory-video-case {
    position: static;
  }

  .benefit-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .expert-profile {
    grid-template-columns: 1fr;
  }

  .expert-profile-photo {
    max-height: 360px;
  }

  .side-nav {
    position: static;
  }

  .article-layout {
    grid-template-columns: minmax(0, 780px);
  }

  .article-toc {
    position: static;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
  }

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

@media (max-width: 720px) {
  .header-inner,
  .container,
  .hero-content,
  .article-shell,
  .article-cover,
  .article-layout {
    width: min(calc(100% - 28px), var(--max));
  }

  .header-inner {
    min-height: 68px;
  }

  .brand img {
    width: 112px;
    height: 46px;
  }

  .site-nav {
    top: 68px;
  }

  .section {
    padding: 68px 0;
  }

  .hero {
    min-height: 0;
    align-items: flex-start;
  }

  .hero-backdrop {
    inset: 0;
    background-position: 62% center;
    transform: none;
  }

  .hero::before {
    width: 100%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.76));
  }

  .hero::after {
    display: none;
  }

  .hero-content {
    padding: 54px 0 48px;
    gap: 28px;
  }

  .hero-copy {
    max-width: 100%;
  }

  .hero h1 {
    font-size: clamp(36px, 10.5vw, 46px);
    line-height: 1.12;
  }

  .hero-scroll {
    display: none;
  }

  .hero .hero-lead {
    max-width: 100%;
    font-size: 17px;
  }

  .hero-highlights {
    display: grid;
    grid-template-columns: 1fr;
    width: min(100%, 340px);
  }

  .hero-highlights span {
    background: rgba(255, 255, 255, 0.9);
  }

  .hero-proof {
    max-width: none;
    grid-template-columns: 1fr;
  }

  .hero-proof div {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .hero-proof div:last-child {
    border-bottom: 0;
  }

  .button-row {
    align-items: stretch;
    flex-direction: column;
    width: min(100%, 330px);
  }

  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .proof-item {
    padding: 16px 10px;
    border-bottom: 1px solid var(--line);
  }

  .proof-item:nth-child(2) {
    border-right: 0;
  }

  .proof-item:nth-child(4) {
    border-right: 0;
  }

  .proof-item:last-child {
    grid-column: 1 / -1;
    padding-left: 10px;
    border-top: 0;
    text-align: center;
  }

  .advantages-head br {
    display: none;
  }

  .advantage-visual {
    display: block;
  }

  .advantage-product-scene {
    min-height: 400px;
  }

  .advantage-pack {
    width: 41%;
    border-width: 6px;
  }

  .advantage-pack-cat {
    top: 24px;
    left: 24px;
  }

  .advantage-pack-dog {
    top: 54px;
    left: 43%;
  }

  .advantage-item {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 12px;
    padding: 23px 0;
  }

  .advantage-item:hover {
    padding-right: 0;
    padding-left: 0;
    background: transparent;
    transform: none;
  }

  .advantage-item h3 {
    font-size: 22px;
  }

  .product-grid,
  .article-grid,
  .process-grid,
  .research-points,
  .research-data,
  .benefit-list,
  .expert-grid,
  .quality-list,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .certificate-grid,
  .factory-gallery {
    grid-template-columns: 1fr;
  }

  .research-experts {
    gap: 12px;
  }

  .research-experts figure:hover {
    transform: none;
  }

  .expert-trigger {
    min-height: 174px;
    grid-template-columns: 116px minmax(0, 1fr);
  }

  .expert-photo {
    min-height: 174px;
  }

  .expert-card-copy {
    padding: 18px;
  }

  .expert-card-copy > strong {
    font-size: 25px;
  }

  .expert-title,
  .expert-focus {
    font-size: 11px;
  }

  .product-grid-featured .product-card:first-child {
    display: block;
    grid-column: auto;
  }

  .product-grid-featured .product-card:first-child > img {
    min-height: 0;
    height: auto;
    aspect-ratio: 4 / 3;
  }

  .video-case-head {
    padding: 22px 20px 18px;
  }

  .video-case-head h3 {
    font-size: 24px;
  }

  .video-case-item {
    grid-template-columns: 82px minmax(0, 1fr);
    gap: 12px;
    padding: 11px 14px;
  }

  .video-case-item img {
    width: 82px;
    height: 50px;
  }

  .research-points > div,
  .research-points > div:first-child {
    padding: 18px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .research-points > div:last-child {
    border-bottom: 0;
  }

  .research-data > div,
  .research-data > div:first-child {
    padding: 15px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .research-data > div:last-child {
    border-bottom: 0;
  }

  .product-hero {
    padding: 58px 0;
  }

  .product-hero-layout {
    min-height: 0;
  }

  .product-hero-media img {
    max-height: 350px;
  }

  .product-showcase {
    gap: 8px;
  }

  .product-showcase img {
    aspect-ratio: 0.78;
    padding: 6px;
  }

  .product-showcase img:nth-child(2) {
    transform: translateY(14px);
  }

  .benefit-list article {
    min-height: 0;
  }

  .benefit-list article > span {
    margin-bottom: 24px;
  }

  .research-hero {
    padding: 70px 0 58px;
  }

  .research-hero p {
    font-size: 18px;
  }

  .expert-profile {
    min-height: 0;
  }

  .expert-profile > div {
    padding: 26px;
  }

  .expert-dialog {
    width: min(calc(100% - 20px), 540px);
    max-height: calc(100svh - 20px);
    overflow-y: auto;
  }

  .expert-dialog-layout {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .expert-dialog-layout > img {
    height: min(42svh, 340px);
  }

  .expert-dialog-copy {
    padding: 30px 24px 34px;
  }

  .expert-dialog-copy h2 {
    font-size: 30px;
  }

  .research-story-media {
    grid-template-columns: 1fr;
  }

  .texture-pair {
    grid-template-columns: 1fr;
  }

  .texture-pair img,
  .texture-pair img:last-child {
    min-height: 0;
  }

  .texture-ai {
    min-height: 330px;
  }

  .texture-ai img,
  .texture-ai img:last-child {
    width: 104%;
    max-height: 350px;
    transform: translateX(10%) scale(1.48);
  }

  .research-story-media img:first-child {
    min-height: 280px;
  }

  .capability-media {
    grid-template-columns: 1fr;
  }

  .capability-media img:nth-child(2) {
    margin-top: 0;
  }

  .fact {
    grid-template-columns: 90px 1fr;
  }

  .inquiry-form {
    grid-template-columns: 1fr;
  }

  .field-full {
    grid-column: auto;
  }

  .page-hero {
    padding: 70px 0 54px;
  }

  .article-header {
    padding: 54px 0 34px;
  }

  .article-header h1 {
    font-size: clamp(36px, 11vw, 52px);
  }

  .article-summary {
    font-size: 18px;
  }

  .article-body h2 {
    font-size: 29px;
  }

  .article-body p,
  .article-body li {
    font-size: 17px;
  }

  .table-scroll {
    max-width: 100%;
    overflow-x: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition: none !important;
  }

  .hero-backdrop {
    transform: none;
  }

  [data-reveal] {
    opacity: 1;
    translate: none;
  }

  .motion-ribbon-track {
    animation: none;
  }
}

.honeypot {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

.inquiry-form button:disabled {
  cursor: wait;
  opacity: 0.68;
}

.article-cover {
  width: 100%;
  max-height: 560px;
  margin: 0 0 42px;
  border-radius: 6px;
  object-fit: cover;
}

.article-faq {
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.article-faq details {
  border-bottom: 1px solid var(--line);
}

.article-faq summary {
  cursor: pointer;
  padding: 18px 0;
  font-size: 18px;
  font-weight: 750;
}

.article-faq details p {
  margin-top: 0;
  color: var(--muted);
}

.dynamic-article-layout {
  grid-template-columns: minmax(0, 780px);
}