:root {
  color: #171817;
  background: #050505;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  --ink: #050505;
  --ink-soft: #171918;
  --paper: #f2f3ef;
  --white: #ffffff;
  --coral: #ff6a57;
  --mint: #9df0c9;
  --line-dark: rgba(255, 255, 255, 0.18);
  --line-light: rgba(18, 20, 18, 0.18);
}

* {
  box-sizing: border-box;
  letter-spacing: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--ink);
}

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

img {
  max-width: 100%;
}

a {
  color: inherit;
}

p,
h1,
h2,
h3,
dl,
dd {
  margin-top: 0;
}

h1,
h2 {
  font-family: Georgia, "Times New Roman", "Microsoft YaHei", serif;
  font-weight: 500;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 4px;
  background: var(--white);
  color: var(--ink);
  font-size: 0.85rem;
  font-weight: 800;
  transform: translateY(-160%);
}

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

.section-shell {
  width: min(1180px, 90vw);
  margin: 0 auto;
}

.eyebrow {
  margin-bottom: 16px;
  color: #5d625f;
  font-size: 0.76rem;
  font-weight: 850;
  text-transform: uppercase;
}

.eyebrow--light {
  color: var(--mint);
}

.eyebrow--coral {
  color: #ff7a67;
}

.eyebrow--mint {
  color: var(--mint);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.65fr);
  align-items: end;
  gap: 8vw;
}

.section-heading h2 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: 3.25rem;
  line-height: 1.15;
}

.section-heading--dark {
  grid-template-columns: minmax(0, 1fr);
}

.section-lead {
  max-width: 620px;
  margin-bottom: 0;
  color: #5d625f;
  font-size: 1rem;
  line-height: 1.82;
}

.section-lead--dark {
  color: rgba(255, 255, 255, 0.68);
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 0 5vw;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(5, 5, 5, 0.76);
  color: var(--white);
  backdrop-filter: blur(18px);
}

.site-header--solid {
  background: rgba(5, 5, 5, 0.96);
}

.site-brand {
  display: flex;
  align-items: baseline;
  gap: 11px;
  min-width: 0;
  text-decoration: none;
}

.site-brand__company {
  font-size: 1.08rem;
  font-weight: 850;
}

.site-brand__product {
  color: rgba(255, 255, 255, 0.48);
  font-size: 0.72rem;
  font-weight: 750;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  min-width: 0;
}

.site-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.8rem;
  font-weight: 760;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--white);
  outline: none;
}

.site-nav .site-nav__contact {
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 4px;
  color: var(--white);
}

.hero {
  position: relative;
  display: grid;
  min-height: 86svh;
  overflow: hidden;
  isolation: isolate;
}

.hero__image,
.hero__shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__image {
  z-index: -2;
  object-fit: cover;
  object-position: center 42%;
}

.hero__shade {
  z-index: -1;
  background: rgba(6, 8, 7, 0.54);
}

.hero__content {
  align-self: end;
  width: min(1180px, 90vw);
  margin: 0 auto;
  padding: 150px 0 8vh;
  color: var(--white);
}

.hero h1 {
  max-width: 820px;
  margin-bottom: 0;
  font-size: 7.2rem;
  line-height: 0.9;
}

.hero__copy {
  max-width: 610px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.08rem;
  font-weight: 540;
  line-height: 1.82;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-radius: 4px;
  font-size: 0.88rem;
  font-weight: 820;
  text-decoration: none;
}

.button--light {
  border: 1px solid rgba(255, 255, 255, 0.6);
  background: rgba(5, 5, 5, 0.22);
  color: var(--white);
}

.button--light:hover,
.button--light:focus-visible {
  border-color: var(--mint);
  background: var(--mint);
  color: var(--ink);
  outline: none;
}

.text-link {
  font-size: 0.86rem;
  font-weight: 780;
  text-underline-offset: 5px;
}

.text-link--light {
  color: rgba(255, 255, 255, 0.78);
}

.hero__status {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 42px 0 0;
  color: rgba(255, 255, 255, 0.54);
  font-size: 0.72rem;
  font-weight: 760;
}

.hero__status span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--coral);
}

.statement {
  display: grid;
  min-height: 42svh;
  place-items: center;
  padding: 86px 0;
  background: var(--paper);
  color: #171817;
}

.statement__inner {
  display: grid;
  grid-template-columns: minmax(160px, 0.32fr) minmax(0, 1fr);
  align-items: start;
  gap: 8vw;
}

.statement__text {
  max-width: 900px;
  margin-bottom: 0;
  font-family: Georgia, "Times New Roman", "Microsoft YaHei", serif;
  font-size: 2.35rem;
  line-height: 1.42;
}

.product {
  padding: 112px 0 122px;
  background: var(--ink-soft);
  color: #f8f8f4;
}

.product__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 390px);
  align-items: center;
  gap: 9vw;
}

.product__copy h2 {
  max-width: 680px;
  margin-bottom: 0;
  font-size: 3.4rem;
  line-height: 1.16;
}

.product__copy .section-lead {
  margin-top: 24px;
}

.product__journey {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 44px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-dark);
  list-style: none;
}

.product__journey li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  min-height: 76px;
  align-items: center;
  border-bottom: 1px solid var(--line-dark);
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.92rem;
  font-weight: 720;
}

.product__journey li:nth-child(odd) {
  padding-right: 22px;
}

.product__journey li:nth-child(even) {
  padding-left: 22px;
  border-left: 1px solid var(--line-dark);
}

.product__number {
  color: var(--mint);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.3rem;
  font-weight: 700;
}

.product__figure {
  width: min(100%, 360px);
  margin: 0;
  justify-self: end;
}

.product__screen-frame {
  position: relative;
  aspect-ratio: 448 / 720;
  overflow: hidden;
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 7px;
  background: var(--ink);
  box-shadow: 0 28px 68px rgba(0, 0, 0, 0.42);
}

.product__screen {
  position: absolute;
  top: 0;
  left: 50%;
  display: block;
  width: auto;
  max-width: none;
  height: 100%;
  transform: translateX(-50%);
}

.product__caption {
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.48);
  font-size: 0.74rem;
  line-height: 1.6;
}

.experience {
  padding: 112px 0;
  background: var(--paper);
  color: #171817;
}

.experience__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 72px;
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.experience__item {
  min-width: 0;
  min-height: 310px;
  padding: 36px 32px 42px 0;
}

.experience__item + .experience__item {
  padding-left: 32px;
  border-left: 1px solid var(--line-light);
}

.experience__index {
  color: #c44836;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.1rem;
  font-weight: 700;
}

.experience__item h3 {
  max-width: 280px;
  margin: 74px 0 14px;
  font-size: 1.35rem;
  line-height: 1.35;
}

.experience__item p {
  max-width: 320px;
  margin-bottom: 0;
  color: #656a67;
  font-size: 0.92rem;
  line-height: 1.8;
}

.principles {
  padding: 94px 0;
  background: var(--coral);
  color: #171817;
}

.principles__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: 9vw;
  align-items: start;
}

.principles h2 {
  margin-bottom: 0;
  font-size: 3.35rem;
  line-height: 1.12;
}

.principles .eyebrow {
  color: rgba(23, 24, 23, 0.62);
}

.principles__list {
  border-top: 1px solid rgba(23, 24, 23, 0.38);
}

.principles__list p {
  margin: 0;
  padding: 20px 0;
  border-bottom: 1px solid rgba(23, 24, 23, 0.38);
  font-size: 1rem;
  font-weight: 720;
  line-height: 1.62;
}

.audience {
  padding: 112px 0;
  background: var(--ink);
  color: var(--white);
}

.audience .section-heading h2 {
  max-width: 840px;
}

.audience__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 70px;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.audience__grid article {
  min-height: 330px;
  padding: 34px 44px 40px 0;
}

.audience__grid article + article {
  padding-left: 44px;
  border-left: 1px solid var(--line-dark);
}

.audience__label {
  color: var(--mint);
  font-size: 0.74rem;
  font-weight: 820;
  text-transform: uppercase;
}

.audience__grid h3 {
  max-width: 450px;
  margin: 76px 0 18px;
  font-family: Georgia, "Times New Roman", "Microsoft YaHei", serif;
  font-size: 1.8rem;
  font-weight: 500;
  line-height: 1.35;
}

.audience__grid article > p:last-child {
  max-width: 430px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.92rem;
  line-height: 1.8;
}

.inframe {
  padding: 116px 0;
  background: var(--white);
  color: #171817;
}

.inframe__inner {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1fr);
  gap: 10vw;
  align-items: start;
}

.inframe h2 {
  margin-bottom: 0;
  font-size: 5.2rem;
  line-height: 0.95;
}

.inframe__copy > p {
  max-width: 680px;
  margin-bottom: 50px;
  font-family: Georgia, "Times New Roman", "Microsoft YaHei", serif;
  font-size: 1.8rem;
  line-height: 1.5;
}

.company-facts {
  margin-bottom: 0;
  border-top: 1px solid var(--line-light);
}

.company-facts div {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 20px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line-light);
}

.company-facts dt {
  color: #7a807d;
  font-size: 0.78rem;
  font-weight: 760;
}

.company-facts dd {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 720;
}

.contact {
  padding: 96px 0;
  background: var(--mint);
  color: #171817;
}

.contact__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.75fr);
  gap: 8vw;
  align-items: end;
}

.contact h2 {
  max-width: 680px;
  margin-bottom: 18px;
  font-size: 3.25rem;
  line-height: 1.16;
}

.contact p:not(.eyebrow) {
  max-width: 620px;
  margin-bottom: 0;
  color: rgba(23, 24, 23, 0.68);
  line-height: 1.75;
}

.contact__email {
  display: block;
  padding: 18px 0;
  border-top: 1px solid rgba(23, 24, 23, 0.4);
  border-bottom: 1px solid rgba(23, 24, 23, 0.4);
  font-size: 1rem;
  font-weight: 820;
  overflow-wrap: anywhere;
  text-decoration: none;
}

.contact__email:hover,
.contact__email:focus-visible {
  color: #ae3324;
  outline: none;
}

.site-footer {
  padding: 68px 0 32px;
  background: var(--ink);
  color: var(--white);
}

.site-footer__top {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(300px, 1fr);
  gap: 48px;
  align-items: start;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line-dark);
}

.site-footer__brand {
  margin-bottom: 10px;
  font-size: 1.15rem;
  font-weight: 850;
}

.site-footer__top p:last-child {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.48);
  font-size: 0.82rem;
}

.site-footer__links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 28px;
}

.site-footer__links a {
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.8rem;
  font-weight: 710;
  text-decoration: none;
}

.site-footer__links a:hover,
.site-footer__links a:focus-visible {
  color: var(--white);
  outline: none;
}

.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 24px;
}

.site-footer__bottom p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.38);
  font-size: 0.72rem;
}

.legal-body {
  background: var(--paper);
  color: #171817;
}

.legal-main {
  padding-top: 68px;
}

.legal-hero {
  padding: 88px 0 72px;
  background: var(--ink-soft);
  color: var(--white);
}

.legal-hero h1 {
  max-width: 850px;
  margin-bottom: 18px;
  font-size: 4.3rem;
  line-height: 1.05;
}

.legal-hero__summary {
  max-width: 720px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.8;
}

.draft-notice {
  padding: 22px 0;
  border-bottom: 1px solid rgba(23, 24, 23, 0.18);
  background: var(--coral);
  color: #171817;
}

.draft-notice p {
  margin-bottom: 0;
  font-size: 0.86rem;
  font-weight: 750;
  line-height: 1.65;
}

.legal-layout {
  display: grid;
  grid-template-columns: minmax(190px, 0.28fr) minmax(0, 1fr);
  gap: 8vw;
  padding-top: 76px;
  padding-bottom: 104px;
}

.legal-toc {
  position: sticky;
  top: 96px;
  align-self: start;
  display: grid;
  gap: 11px;
  padding-top: 18px;
  border-top: 1px solid var(--line-light);
}

.legal-toc a {
  color: #666c68;
  font-size: 0.78rem;
  font-weight: 720;
  text-decoration: none;
}

.legal-toc a:hover,
.legal-toc a:focus-visible {
  color: #171817;
  outline: none;
}

.legal-content {
  max-width: 780px;
}

.legal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-bottom: 46px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line-light);
  color: #747a76;
  font-size: 0.78rem;
  font-weight: 700;
}

.legal-section {
  padding: 32px 0;
  border-bottom: 1px solid var(--line-light);
}

.legal-section h2 {
  margin-bottom: 16px;
  font-family: inherit;
  font-size: 1.35rem;
  font-weight: 850;
}

.legal-section h3 {
  margin: 24px 0 10px;
  font-size: 0.98rem;
}

.legal-section p,
.legal-section li {
  color: #5e6460;
  font-size: 0.9rem;
  line-height: 1.86;
}

.legal-section ul,
.legal-section ol {
  padding-left: 1.25rem;
}

.legal-section a {
  font-weight: 760;
}

.legal-back {
  display: inline-flex;
  margin-top: 44px;
  font-size: 0.84rem;
  font-weight: 800;
  text-underline-offset: 5px;
}

@media (max-width: 960px) {
  .section-heading,
  .product__inner,
  .principles__inner,
  .inframe__inner,
  .contact__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
  }

  .product__figure {
    width: min(100%, 370px);
    justify-self: center;
  }

  .inframe__copy {
    max-width: 760px;
  }

  .contact__email {
    max-width: 620px;
  }
}

@media (max-width: 720px) {
  .section-shell {
    width: calc(100% - 40px);
  }

  .site-header {
    min-height: 62px;
    padding: 0 20px;
  }

  .site-nav {
    gap: 14px;
  }

  .site-nav a {
    font-size: 0.74rem;
  }

  .site-nav .site-nav__contact {
    min-height: 34px;
    padding: 0 11px;
  }

  .hero {
    min-height: 84svh;
  }

  .hero__image {
    object-position: 54% center;
  }

  .hero__content {
    width: calc(100% - 40px);
    padding: 126px 0 52px;
  }

  .hero h1 {
    font-size: 4.5rem;
  }

  .hero__copy {
    max-width: 34rem;
    margin-top: 22px;
    font-size: 1rem;
  }

  .hero__actions {
    flex-wrap: wrap;
    gap: 18px;
  }

  .hero__status {
    margin-top: 32px;
  }

  .statement {
    min-height: 38svh;
    padding: 66px 0;
  }

  .statement__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .statement__text {
    font-size: 1.65rem;
  }

  .product,
  .experience,
  .audience,
  .inframe {
    padding: 78px 0;
  }

  .product__copy h2,
  .section-heading h2,
  .principles h2,
  .contact h2 {
    font-size: 2.45rem;
  }

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

  .product__journey li,
  .product__journey li:nth-child(odd),
  .product__journey li:nth-child(even) {
    padding: 0;
    border-left: 0;
  }

  .product__figure {
    width: min(90%, 340px);
  }

  .product__screen-frame {
    box-shadow: 0 22px 54px rgba(0, 0, 0, 0.38);
  }

  .experience__grid,
  .audience__grid {
    grid-template-columns: minmax(0, 1fr);
    margin-top: 50px;
  }

  .experience__item,
  .experience__item + .experience__item,
  .audience__grid article,
  .audience__grid article + article {
    min-height: 0;
    padding: 28px 0 34px;
    border-left: 0;
    border-bottom: 1px solid var(--line-light);
  }

  .audience__grid article,
  .audience__grid article + article {
    border-bottom-color: var(--line-dark);
  }

  .experience__item:last-child,
  .audience__grid article:last-child {
    border-bottom: 0;
  }

  .experience__item h3,
  .audience__grid h3 {
    margin-top: 34px;
  }

  .principles {
    padding: 70px 0;
  }

  .inframe h2 {
    font-size: 3.8rem;
  }

  .inframe__copy > p {
    font-size: 1.45rem;
  }

  .contact {
    padding: 72px 0;
  }

  .site-footer__top {
    grid-template-columns: minmax(0, 1fr);
  }

  .site-footer__bottom {
    display: grid;
  }

  .legal-main {
    padding-top: 62px;
  }

  .legal-hero {
    padding: 66px 0 54px;
  }

  .legal-hero h1 {
    font-size: 3rem;
  }

  .legal-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
    padding-top: 56px;
    padding-bottom: 78px;
  }

  .legal-toc {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .site-brand__product,
  .site-nav__optional {
    display: none;
  }

  .hero h1 {
    font-size: 3.9rem;
  }

  .hero__actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .company-facts div {
    grid-template-columns: 86px minmax(0, 1fr);
  }

  .site-footer__links {
    grid-template-columns: minmax(0, 1fr);
  }

  .legal-hero h1 {
    font-size: 2.55rem;
  }
}

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