:root {
  --ink: #071612;
  --ink-2: #0e211b;
  --green: #b8ef60;
  --mint: #76cfa9;
  --paper: #f3f2eb;
  --white: #fff;
  --muted: #8da098;
  --line: rgba(255, 255, 255, .13);
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif
}

* {
  box-sizing: border-box
}

html {
  scroll-behavior: smooth
}

body {
  margin: 0;
  background: var(--ink);
  color: #fff;
  font-family: var(--sans);
  overflow-x: hidden
}

.noise {
  position: fixed;
  inset: 0;
  opacity: .035;
  pointer-events: none;
  z-index: 100;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E")
}

.site-header {
  height: 86px;
  padding: 0 clamp(24px, 5vw, 82px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255, 255, 255, .1)
}

.brand {
  color: #fff;
  text-decoration: none;
  display: flex;
  gap: 12px;
  align-items: center
}

.brand>span:last-child {
  display: flex;
  flex-direction: column
}

.brand b {
  font-size: 19px;
  letter-spacing: .16em
}

.brand small {
  font-size: 8px;
  letter-spacing: .28em;
  color: #88a299
}


.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 50%;
}


.desktop-nav {
  display: flex;
  gap: 38px
}

.desktop-nav a {
  font-size: 13px;
  color: #c6d0cc;
  text-decoration: none;
  transition: .2s
}

.desktop-nav a:hover {
  color: var(--green)
}

.nav-cta {
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  padding-bottom: 5px;
  border-bottom: 1px solid #fff
}

.nav-cta span {
  color: var(--green);
  margin-left: 8px
}

.menu-button {
  display: none;
  background: none;
  border: 0;
  padding: 10px
}

.menu-button span {
  display: block;
  width: 22px;
  height: 1px;
  background: #fff;
  margin: 6px
}

.hero {
  min-height: 790px;
  height: 100vh;
  position: relative;
  padding: 86px clamp(24px, 7vw, 112px) 50px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: radial-gradient(circle at 65% 48%, #163b2e 0, rgba(14, 43, 33, .55) 20%, transparent 48%), linear-gradient(120deg, #071612, #0a1c17)
}

.hero:before {
  content: "";
  position: absolute;
  right: -7%;
  top: 12%;
  width: 55vw;
  height: 55vw;
  border-radius: 50%;
  border: 1px solid rgba(184, 239, 96, .13)
}

.hero-orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(184, 239, 96, .1)
}

.orbit-one {
  right: -2%;
  top: 17%;
  width: 45vw;
  height: 45vw
}

.orbit-two {
  right: 8%;
  top: 26%;
  width: 29vw;
  height: 29vw
}

.hero-copy {
  width: 56%;
  position: relative;
  z-index: 3
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 11px;
  color: #afc0b9;
  font-size: 12px;
  letter-spacing: .22em
}

.eyebrow>span {
  width: 30px;
  height: 1px;
  background: var(--green)
}

.hero h1 {
  font-size: clamp(52px, 6.3vw, 96px);
  line-height: 1.11;
  letter-spacing: -.06em;
  margin: 27px 0 25px;
  font-weight: 600
}

.hero h1 em,
.contact h2 em {
  font-style: normal;
  color: var(--green)
}

.hero-copy>p {
  color: #9bacA5;
  line-height: 2;
  font-size: 15px;
  margin: 0
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 36px;
  margin-top: 40px
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 42px;
  padding: 16px 20px 16px 22px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  transition: .25s
}

.button:hover {
  transform: translateY(-3px)
}

.button-primary {
  background: var(--green);
  color: var(--ink)
}

.button-primary span {
  font-size: 20px
}

.text-link {
  color: #d5ded9;
  text-decoration: none;
  font-size: 13px
}

.text-link i {
  font-style: normal;
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid #64766f;
  border-radius: 50%;
  font-size: 8px;
  margin-right: 9px
}

.hero-visual {
  position: absolute;
  right: 2%;
  top: 13%;
  width: 47%;
  height: 75%;
  z-index: 2;
  display: grid;
  place-items: center;
  perspective: 900px
}

.glow {
  position: absolute;
  width: 60%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #a3ea70;
  filter: blur(90px);
  opacity: .12
}

.watch {
  width: 240px;
  height: 590px;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: rotate(13deg) rotateX(7deg);
  filter: drop-shadow(40px 45px 35px rgba(0, 0, 0, .55));
  animation: float 6s ease-in-out infinite
}

.watch-strap {
  width: 137px;
  height: 190px;
  background: linear-gradient(90deg, #111c19, #263a33 45%, #111b18);
  border-radius: 40px 40px 18px 18px;
  box-shadow: inset 8px 0 12px rgba(255, 255, 255, .04), inset -8px 0 14px rgba(0, 0, 0, .5);
  position: relative
}

.watch-strap span {
  display: block;
  width: 42px;
  height: 9px;
  border-radius: 10px;
  background: #07100e;
  margin: 20px auto;
  opacity: .8
}

.top-strap {
  margin-bottom: -28px
}

.bottom-strap {
  transform: rotate(180deg);
  margin-top: -28px
}

.watch-case {
  width: 238px;
  height: 265px;
  border-radius: 57px;
  background: linear-gradient(145deg, #30433d, #07100e 35%, #0f201a 72%, #486258);
  padding: 10px;
  position: relative;
  z-index: 2;
  box-shadow: inset 3px 3px 4px rgba(255, 255, 255, .25), inset -4px -4px 5px rgba(0, 0, 0, .8), 0 15px 25px rgba(0, 0, 0, .45)
}

.watch-screen {
  height: 100%;
  border-radius: 49px;
  padding: 24px 22px;
  background: radial-gradient(circle at 50% 35%, #173e2e, #030a08 65%);
  border: 1px solid rgba(255, 255, 255, .08);
  display: flex;
  flex-direction: column;
  align-items: center
}

.watch-crown {
  position: absolute;
  right: -10px;
  top: 76px;
  width: 11px;
  height: 38px;
  border-radius: 0 5px 5px 0;
  background: #273b34
}

.screen-top {
  width: 100%;
  display: flex;
  justify-content: space-between;
  color: #708a80;
  font-size: 8px
}

.moon-icon {
  font-size: 42px;
  color: var(--green);
  line-height: 1;
  margin-top: 18px;
  filter: drop-shadow(0 0 10px rgba(184, 239, 96, .5))
}

.watch-screen>strong {
  font-size: 16px;
  margin-top: 8px;
  letter-spacing: .12em
}

.wave {
  height: 38px;
  display: flex;
  align-items: center;
  gap: 3px;
  margin-top: 8px
}

.wave i {
  width: 2px;
  background: var(--mint);
  border-radius: 5px;
  animation: wave 1.5s infinite ease-in-out
}

.wave i:nth-child(1),
.wave i:nth-child(9) {
  height: 5px
}

.wave i:nth-child(2),
.wave i:nth-child(8) {
  height: 12px
}

.wave i:nth-child(3),
.wave i:nth-child(7) {
  height: 20px
}

.wave i:nth-child(4),
.wave i:nth-child(6) {
  height: 13px
}

.wave i:nth-child(5) {
  height: 30px
}

.sleep-score {
  border-top: 1px solid #21332d;
  width: 100%;
  margin-top: auto;
  padding-top: 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #788d85;
  font-size: 8px
}

.sleep-score b {
  font-size: 25px;
  color: #fff
}

.watch-shadow {
  position: absolute;
  width: 280px;
  height: 80px;
  background: #000;
  filter: blur(25px);
  opacity: .5;
  bottom: 7%;
  transform: rotate(8deg)
}

.data-chip {
  position: absolute;
  background: rgba(12, 29, 24, .8);
  border: 1px solid rgba(255, 255, 255, .12);
  backdrop-filter: blur(14px);
  padding: 13px 17px;
  color: #82958d;
  font-size: 9px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, .2)
}

.data-chip b {
  display: block;
  color: #fff;
  font-size: 17px;
  margin-top: 4px
}

.data-chip small {
  font-size: 7px;
  color: #7e9289
}

.chip-one {
  left: 4%;
  top: 35%
}

.chip-two {
  right: 0;
  top: 48%
}

.chip-three {
  right: 11%;
  bottom: 20%;
  font-size: 10px;
  color: #ced8d4
}

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  margin-right: 7px
}

.hero-foot {
  position: absolute;
  bottom: 34px;
  left: 7vw;
  right: 5vw;
  display: flex;
  align-items: center;
  gap: 22px;
  color: #556860;
  font-size: 8px;
  letter-spacing: .25em
}

.hero-foot div {
  height: 1px;
  background: #344740;
  flex: 1
}

.trust-strip {
  min-height: 145px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 0 6vw;
  background: #0a1915
}

.trust-strip>div {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  border-right: 1px solid var(--line)
}

.trust-strip>div:last-child {
  border: 0
}

.trust-strip b {
  font-size: 32px;
  font-weight: 500;
  color: var(--green)
}

.trust-strip b span {
  font-size: 13px;
  margin-left: 3px
}

.trust-strip p {
  font-size: 11px;
  color: #82938c;
  max-width: 105px;
  line-height: 1.6
}

.section {
  padding: 120px clamp(24px, 7vw, 112px)
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end
}

.section-heading>div {
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: 20px
}

.section-no {
  font-size: 9px;
  color: #687a72;
  border: 1px solid #32443c;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center
}

.eyebrow.light {
  color: #6f8279
}

.section-heading h2,
.product-copy h2,
.research-intro h2,
.journey h2,
.about h2 {
  font-size: clamp(36px, 4.2vw, 64px);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -.05em;
  margin: 0
}

.section-heading h2 span,
.research-intro h2 span,
.journey h2 span,
.about h2 span {
  color: var(--green)
}

.system {
  background: #0b1b16
}

.system-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: #26372f;
  margin-top: 75px
}

.system-card {
  min-height: 470px;
  background: #0b1b16;
  padding: 35px 38px;
  position: relative;
  transition: .35s
}

.system-card:hover {
  transform: translateY(-7px);
  z-index: 2
}

.system-card.featured {
  background: #c8f47c;
  color: var(--ink)
}

.card-index {
  font-size: 9px;
  color: #60736a
}

.featured .card-index {
  color: #536f32
}

.line-icon {
  width: 82px;
  height: 82px;
  margin: 66px 0 36px;
  position: relative
}

.watch-icon {
  border: 2px solid #b7c5bf;
  border-radius: 19px;
  width: 54px;
  height: 62px;
  margin-left: 15px
}

.watch-icon:before,
.watch-icon:after {
  content: "";
  position: absolute;
  left: 11px;
  width: 28px;
  height: 15px;
  border-left: 2px solid #b7c5bf;
  border-right: 2px solid #b7c5bf
}

.watch-icon:before {
  top: -17px
}

.watch-icon:after {
  bottom: -17px
}

.watch-icon span {
  position: absolute;
  width: 17px;
  height: 17px;
  border: 2px solid var(--green);
  border-radius: 50%;
  left: 17px;
  top: 20px
}

.microbe-icon {
  border: 2px solid #0c231b;
  border-radius: 50%
}

.microbe-icon:before,
.microbe-icon:after,
.microbe-icon span,
.microbe-icon i {
  content: "";
  position: absolute;
  background: #183d2e;
  border-radius: 50%
}

.microbe-icon:before {
  width: 17px;
  height: 17px;
  left: 15px;
  top: 15px
}

.microbe-icon:after {
  width: 12px;
  height: 12px;
  right: 15px;
  bottom: 17px
}

.microbe-icon span {
  width: 21px;
  height: 13px;
  left: 27px;
  bottom: 18px;
  transform: rotate(-30deg)
}

.microbe-icon i:nth-of-type(1) {
  width: 9px;
  height: 9px;
  right: 17px;
  top: 17px
}

.microbe-icon i:nth-of-type(2) {
  width: 6px;
  height: 6px;
  left: 17px;
  bottom: 14px
}

.plan-icon {
  border-left: 2px solid #b7c5bf;
  border-bottom: 2px solid #b7c5bf
}

.plan-icon:before {
  content: "";
  position: absolute;
  left: 18px;
  bottom: 18px;
  width: 14px;
  height: 22px;
  border-top: 2px solid var(--green);
  border-right: 2px solid var(--green);
  transform: rotate(-40deg)
}

.plan-icon span {
  position: absolute;
  right: 5px;
  top: 3px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid #b7c5bf
}

.system-card h3 {
  font-size: 26px;
  font-weight: 500;
  margin: 0 0 15px
}

.system-card p {
  font-size: 13px;
  line-height: 1.9;
  color: #7f9189;
  margin-bottom: 24px
}

.featured p {
  color: #416044
}

.system-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 9px
}

.system-card li {
  border: 1px solid #30433b;
  padding: 7px 10px;
  font-size: 9px;
  color: #97a8a0
}

.featured li {
  border-color: #769b4d;
  color: #355229
}

.probiotic {
  background: var(--paper);
  color: var(--ink);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9%;
  align-items: center
}

.product-stage {
  min-height: 660px;
  display: grid;
  place-items: center;
  position: relative
}

.product-stage img {
  width: min(72%, 430px);
  max-height: 570px;
  object-fit: cover;
  object-position: center;
  position: relative;
  z-index: 2;
  border-radius: 4px;
  box-shadow: 0 40px 60px rgba(22, 47, 36, .24);
  transform: rotate(-3deg)
}

.product-ring {
  position: absolute;
  width: 84%;
  aspect-ratio: 1;
  border: 1px solid #cbd2c8;
  border-radius: 50%
}

.product-halo {
  position: absolute;
  width: 60%;
  aspect-ratio: 1;
  background: #b9ec72;
  border-radius: 50%;
  filter: blur(60px);
  opacity: .45
}

.product-tag {
  position: absolute;
  z-index: 3;
  background: #fff;
  box-shadow: 0 15px 30px rgba(24, 48, 38, .12);
  padding: 12px 15px;
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 13px
}

.product-tag i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #84be3d
}

.product-tag small {
  display: block;
  color: #8d998e;
  font-size: 8px
}

.tag-a {
  left: 2%;
  top: 27%
}

.tag-b {
  right: 0;
  bottom: 20%
}

.eyebrow.dark {
  color: #728076
}

.product-copy h2 {
  font-size: clamp(35px, 3.6vw, 57px);
  margin: 27px 0
}

.product-copy h2 em {
  font-style: normal;
  color: #559729
}

.product-copy .lead {
  color: #647068;
  font-size: 14px;
  line-height: 2;
  max-width: 540px
}

.product-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid #cbd0c7;
  border-bottom: 1px solid #cbd0c7;
  margin: 35px 0
}

.product-facts>div {
  padding: 23px 10px 23px 0
}

.product-facts>div+div {
  padding-left: 25px;
  border-left: 1px solid #cbd0c7
}

.product-facts b {
  font-size: 25px;
  color: #315e32;
  display: block
}

.product-facts b small {
  font-size: 9px;
  margin-left: 5px
}

.product-facts span {
  font-size: 10px;
  color: #879188
}

.notice {
  display: flex;
  gap: 12px;
  align-items: flex-start
}

.notice>span {
  flex: 0 0 auto;
  border: 1px solid #929e95;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  font-size: 10px
}

.notice p {
  font-size: 9px;
  line-height: 1.75;
  color: #8d958f;
  margin: 0
}

.research {
  background: #091813;
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 10%;
  align-items: center
}

.research-intro .eyebrow {
  margin: 25px 0
}

.research-intro h2 {
  font-size: clamp(36px, 3.6vw, 57px)
}

.research-intro>p {
  color: #81938b;
  font-size: 13px;
  line-height: 2;
  margin-top: 30px;
  max-width: 520px
}

.research-panel {
  background: #10241d;
  border: 1px solid #23372f;
  padding: 34px
}

.professor-card {
  background: #d8f99d;
  color: var(--ink);
  padding: 22px;
  display: flex;
  gap: 22px;
  align-items: center
}

.professor-art {
  width: 105px;
  height: 120px;
  background: #173127;
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center
}

.professor-art span {
  font-family: serif;
  font-size: 53px;
  color: #d8f99d;
  position: relative;
  z-index: 2
}

.professor-art i {
  position: absolute;
  border: 1px solid #7dbb70;
  border-radius: 50%
}

.professor-art i:nth-child(2) {
  width: 100px;
  height: 100px
}

.professor-art i:nth-child(3) {
  width: 70px;
  height: 70px
}

.professor-art i:nth-child(4) {
  width: 40px;
  height: 40px
}

.professor-card small {
  font-size: 9px;
  color: #52704a
}

.professor-card h3 {
  font-size: 25px;
  margin: 8px 0
}

.professor-card p {
  font-size: 10px;
  margin: 0;
  color: #4d6747
}

.timeline {
  padding: 18px 8px 0
}

.timeline>div {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid #294038
}

.timeline>div:last-child {
  border: 0
}

.timeline b {
  font-size: 10px;
  color: var(--green)
}

.timeline span {
  display: flex;
  justify-content: space-between;
  align-items: center
}

.timeline strong {
  font-size: 13px;
  font-weight: 500
}

.timeline small {
  color: #657a70;
  font-size: 9px
}

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

.journey-copy {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  flex-wrap: wrap
}

.journey-copy .eyebrow {
  width: calc(100% - 60px);
  margin-top: 7px
}

.journey-copy h2 {
  margin: 20px 0 65px 58px
}

.journey-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid #c8cec5
}

.step {
  padding: 28px 28px 10px 0;
  position: relative;
  border-right: 1px solid #c8cec5;
  min-height: 240px
}

.step:not(:first-child) {
  padding-left: 28px
}

.step:last-child {
  border: 0
}

.step b {
  font-size: 9px;
  color: #8b968c
}

.step-icon {
  display: block;
  margin: 32px 0 26px;
  font-size: 37px;
  color: #5e9b39
}

.step h3 {
  font-size: 18px;
  margin: 0 0 9px
}

.step p {
  font-size: 11px;
  color: #849087
}

.about {
  background: #0e201a;
  display: grid;
  grid-template-columns: 1fr .8fr;
  gap: 10%;
  align-items: end
}

.about-copy .eyebrow {
  margin-bottom: 30px
}

.about h2 {
  font-size: clamp(40px, 5vw, 72px)
}

.about-content>p {
  color: #91a199;
  line-height: 2.1;
  font-size: 14px
}

.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 45px;
  border-top: 1px solid #31443c;
  padding-top: 24px
}

.values div {
  display: flex;
  flex-direction: column
}

.values b {
  color: var(--green);
  font-size: 20px
}

.values span {
  font-size: 9px;
  color: #6d8177;
  margin-top: 8px
}

.contact {
  min-height: 590px;
  padding: 100px 12vw;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 70% 50%, #294f37, #10261d 55%, #071612);
  display: flex;
  justify-content: space-between;
  align-items: center
}

.contact:after {
  content: "";
  position: absolute;
  width: 580px;
  height: 580px;
  border-radius: 50%;
  border: 1px solid rgba(184, 239, 96, .13);
  right: 7%;
  top: 1%
}

.contact-orbit {
  position: absolute;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  border: 1px solid rgba(184, 239, 96, .16);
  right: 14%;
  top: 18%
}

.contact h2 {
  font-size: clamp(50px, 6vw, 86px);
  line-height: 1.15;
  margin: 25px 0
}

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

.contact-copy>p {
  color: #8fa198;
  font-size: 13px;
  margin-bottom: 32px
}

.button-light {
  background: #fff;
  color: var(--ink)
}

.contact-card {
  position: relative;
  z-index: 3;
  width: 230px;
  padding: 28px;
  text-align: center;
  background: rgba(6, 18, 14, .78);
  border: 1px solid #3c554a;
  backdrop-filter: blur(18px);
  margin-right: 5vw
}

.qr-placeholder {
  height: 174px;
  background: #dfffa5;
  color: #183126;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative
}

.qr-placeholder span {
  width: 55px;
  height: 55px;
  border: 8px dotted #1d3b2e;
  margin-bottom: 13px
}

.qr-placeholder strong {
  font-size: 13px
}

.qr-placeholder small {
  font-size: 8px;
  color: #668057;
  margin-top: 4px
}

.contact-card>p {
  font-size: 9px;
  color: #71847b;
  margin: 20px 0 5px
}

.contact-card>b {
  font-size: 11px;
  font-weight: 500
}

footer {
  min-height: 110px;
  padding: 0 7vw;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: center;
  background: #06120f;
  border-top: 1px solid #1d3028
}

footer>p {
  text-align: center;
  color: #5d7268;
  font-size: 9px
}

footer>p:last-child {
  text-align: right
}

.reveal {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity .75s ease, transform .75s ease
}

.reveal.visible {
  opacity: 1;
  transform: none
}

@keyframes float {

  0%,
  100% {
    transform: rotate(13deg) rotateX(7deg) translateY(0)
  }

  50% {
    transform: rotate(11deg) rotateX(7deg) translateY(-15px)
  }
}

@keyframes wave {

  0%,
  100% {
    transform: scaleY(.65);
    opacity: .5
  }

  50% {
    transform: scaleY(1.2);
    opacity: 1
  }
}


@media(max-width:980px) {

  .desktop-nav,
  .nav-cta {
    display: none
  }

  .menu-button {
    display: block
  }

  .site-header.menu-open {
    position: fixed;
    background: #071612
  }

  .site-header.menu-open .desktop-nav {
    display: flex;
    position: absolute;
    top: 86px;
    left: 0;
    right: 0;
    height: calc(100vh - 86px);
    background: #071612;
    flex-direction: column;
    align-items: center;
    padding-top: 70px;
    font-size: 20px
  }

  .site-header.menu-open .desktop-nav a {
    font-size: 20px
  }

  .hero {
    height: auto;
    min-height: 900px;
    padding-top: 150px;
    align-items: flex-start
  }

  .hero-copy {
    width: 100%
  }

  .hero-visual {
    position: relative;
    width: 100%;
    height: 530px;
    right: auto;
    top: auto;
    margin-top: 25px
  }

  .hero {
    display: block
  }

  .watch {
    transform: scale(.72) rotate(13deg);
    animation: none
  }

  .hero-foot {
    display: none
  }

  .section-heading {
    display: block
  }

  .section-heading h2 {
    margin-top: 35px
  }

  .system-grid {
    grid-template-columns: 1fr
  }

  .system-card {
    min-height: 380px
  }

  .line-icon {
    margin-top: 45px
  }

  .probiotic,
  .research,
  .about {
    grid-template-columns: 1fr
  }

  .product-stage {
    min-height: 570px
  }

  .research-intro {
    margin-bottom: 60px
  }

  .journey-steps {
    grid-template-columns: 1fr 1fr
  }

  .step:nth-child(2) {
    border-right: 0
  }

  .contact {
    padding: 90px 7vw
  }

  .contact-card {
    margin: 0
  }

  .contact:after,
  .contact-orbit {
    display: none
  }
}

@media(max-width:640px) {
  .site-header {
    height: 72px;
    padding: 0 20px
  }

  .brand b {
    font-size: 16px
  }

  .hero {
    padding: 125px 20px 45px;
    min-height: 910px
  }

  .hero h1 {
    font-size: 49px
  }

  .hero-copy>p br {
    display: none
  }

  .hero-actions {
    gap: 20px;
    align-items: flex-start;
    flex-direction: column
  }

  .hero-visual {
    height: 460px
  }

  .watch {
    scale: .68
  }

  .chip-one {
    left: 0
  }

  .chip-two {
    right: 0
  }

  .trust-strip {
    grid-template-columns: 1fr 1fr;
    padding: 15px
  }

  .trust-strip>div {
    min-height: 100px
  }

  .trust-strip>div:nth-child(2) {
    border-right: 0
  }

  .section {
    padding: 85px 20px
  }

  .section-heading h2,
  .product-copy h2,
  .research-intro h2,
  .journey h2,
  .about h2 {
    font-size: 37px
  }

  .system-grid {
    margin-top: 45px
  }

  .system-card {
    padding: 30px
  }

  .product-stage {
    min-height: 500px
  }

  .product-stage img {
    width: 70%;
    max-height: 440px
  }

  .tag-a {
    left: 0
  }

  .tag-b {
    right: 0
  }

  .product-facts {
    grid-template-columns: 1fr
  }

  .product-facts>div+div {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid #cbd0c7
  }

  .research-panel {
    padding: 18px
  }

  .professor-card {
    padding: 15px;
    gap: 13px
  }

  .professor-art {
    width: 82px;
    height: 105px
  }

  .timeline span {
    display: block
  }

  .timeline small {
    display: block;
    margin-top: 5px
  }

  .journey-copy h2 {
    margin-left: 0
  }

  .journey-steps {
    grid-template-columns: 1fr
  }

  .step,
  .step:not(:first-child) {
    border-right: 0;
    border-bottom: 1px solid #c8cec5;
    padding: 25px 0;
    min-height: 205px
  }

  .about {
    gap: 60px
  }

  .contact {
    display: block;
    padding: 85px 20px
  }

  .contact h2 {
    font-size: 51px
  }

  .contact-card {
    margin: 60px auto 0
  }

  footer {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 35px 20px;
    gap: 17px
  }

  footer .brand {
    justify-content: center
  }

  footer>p,
  footer>p:last-child {
    text-align: center;
    margin: 0
  }
}

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

  .watch,
  .wave i {
    animation: none
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none
  }
}

/* Readability pass: larger, locally available Chinese typography */
:root {
  --sans: "MiSans", "HarmonyOS Sans SC", "Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif
}

body {
  font-size: 17px;
  font-weight: 400;
  letter-spacing: .01em
}

.desktop-nav a,
.nav-cta {
  font-size: 15px
}

.brand b {
  font-size: 21px
}

.brand small {
  font-size: 10px
}

.eyebrow {
  font-size: 14px;
  letter-spacing: .16em
}

.hero-copy>p {
  font-size: 17px;
  line-height: 1.9
}

.button,
.text-link {
  font-size: 15px
}

.hero-foot {
  font-size: 10px
}

.trust-strip p {
  font-size: 13px;
  max-width: 130px
}

.trust-strip b span {
  font-size: 15px
}

.section-no,
.card-index {
  font-size: 11px
}

.system-card p {
  font-size: 15px;
  line-height: 1.85
}

.system-card li {
  font-size: 12px
}

.product-copy .lead {
  font-size: 16px
}

.product-facts span {
  font-size: 12px
}

.product-facts b small {
  font-size: 11px
}

.notice p {
  font-size: 11px;
  line-height: 1.75
}

.research-intro>p {
  font-size: 15px
}

.professor-card small {
  font-size: 11px
}

.professor-card p {
  font-size: 12px
}

.timeline b {
  font-size: 12px
}

.timeline strong {
  font-size: 15px
}

.timeline small {
  font-size: 12px
}

.step b {
  font-size: 11px
}

.step h3 {
  font-size: 20px
}

.step p {
  font-size: 13px
}

.about-content>p {
  font-size: 16px
}

.values span {
  font-size: 12px
}

.contact-copy>p {
  font-size: 15px
}

.contact-card {
  width: 270px
}

.qr-placeholder {
  height: 214px;
  background: #fff;
  padding: 8px
}

.qr-placeholder img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain
}

.contact-card>p {
  font-size: 12px
}

.contact-card>b {
  font-size: 13px
}

footer>p {
  font-size: 11px
}

@media(max-width:640px) {
  body {
    font-size: 16px
  }

  .brand b {
    font-size: 18px
  }

  .brand small {
    font-size: 9px
  }

  .eyebrow {
    font-size: 12px
  }

  .hero-copy>p {
    font-size: 15px
  }

  .button,
  .text-link {
    font-size: 14px
  }

  .trust-strip p {
    font-size: 12px
  }

  .system-card p {
    font-size: 14px
  }

  .product-copy .lead,
  .research-intro>p,
  .about-content>p {
    font-size: 15px
  }

  .notice p {
    font-size: 10px
  }

  .contact-copy>p {
    font-size: 14px
  }

  .contact-card {
    width: 260px
  }
}