platforms/frontend/site/src/styles.css

@import "@fontsource-variable/noto-sans-sc";

:root {
  font-family:
    "Noto Sans SC Variable", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #202936;
  background: #f7faff;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --platform: #1265e8;
  --platform-deep: #0c4fbd;
  --station: #dc7100;
  --station-deep: #b85a00;
  --delivery: #068f8b;
  --delivery-deep: #08746f;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: #f7faff;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: #202936;
  background: #f7faff;
  -webkit-font-smoothing: antialiased;
}

#root {
  min-height: 100vh;
}

a {
  color: inherit;
}

.site-shell {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 38px clamp(28px, 4.6vw, 72px) 30px;
  overflow: hidden;
  background: #f7faff;
}

.ecosystem-scene {
  position: absolute;
  inset: 108px 0 0;
  z-index: -1;
  width: 100%;
  height: calc(100% - 108px);
  object-fit: cover;
  object-position: center bottom;
  user-select: none;
  pointer-events: none;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100%, 1320px);
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  color: #17212d;
  font-weight: 650;
  font-size: 27px;
  line-height: 1;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.brand img {
  width: 43px;
  height: 43px;
}

.trust-line {
  display: inline-flex;
  gap: 9px;
  align-items: center;
  color: #687586;
  font-size: 14px;
  line-height: 22px;
  letter-spacing: 0.02em;
}

.hero {
  position: relative;
  z-index: 1;
  width: min(100%, 900px);
  margin: clamp(34px, 4.5vh, 46px) auto 0;
  text-align: center;
}

.hero__eyebrow {
  margin: 0 0 12px;
  color: #6d7f95;
  font-weight: 620;
  font-size: 12px;
  line-height: 20px;
  letter-spacing: 0.2em;
}

.hero h1 {
  margin: 0;
  color: #202936;
  font-weight: 680;
  font-size: clamp(48px, 4.2vw, 66px);
  line-height: 1.16;
  letter-spacing: 0.035em;
}

.hero__description {
  margin: 18px auto 0;
  color: #637083;
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 30px;
  letter-spacing: 0.025em;
}

.hero__description span {
  display: inline;
}

.portal-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(30px, 4vw, 64px);
  width: min(100%, 1280px);
  margin: clamp(48px, 6.5vh, 66px) auto 0;
}

.portal {
  --accent: var(--platform);
  --accent-deep: var(--platform-deep);
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 24px;
  padding: 8px 10px 12px;
  background: rgba(255, 255, 255, 0.62);
  border-radius: 14px;
  text-decoration: none;
  outline: none;
  transition:
    background-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.portal--station {
  --accent: var(--station);
  --accent-deep: var(--station-deep);
}

.portal--delivery {
  --accent: var(--delivery);
  --accent-deep: var(--delivery-deep);
}

.portal:hover {
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 18px 46px rgba(37, 58, 84, 0.12);
  transform: translateY(-4px);
}

.portal:focus-visible {
  background: rgba(255, 255, 255, 0.9);
  box-shadow:
    0 0 0 4px rgba(18, 101, 232, 0.18),
    0 18px 46px rgba(37, 58, 84, 0.12);
}

.portal__heading {
  display: grid;
  grid-template-columns: auto 1px minmax(0, 1fr);
  gap: 20px;
  align-items: center;
  min-height: 68px;
}

.portal__number {
  color: var(--accent);
  font-weight: 660;
  font-size: clamp(46px, 4vw, 60px);
  line-height: 1;
  letter-spacing: -0.035em;
}

.portal__divider {
  width: 1px;
  height: 54px;
  background: color-mix(in srgb, var(--accent) 35%, transparent);
}

.portal h2 {
  margin: 0;
  color: #202936;
  font-weight: 650;
  font-size: clamp(20px, 1.7vw, 25px);
  line-height: 1.35;
}

.portal p {
  margin: 7px 0 0;
  color: #6b7787;
  font-size: 13px;
  line-height: 21px;
  white-space: nowrap;
}

.portal__action {
  display: inline-flex;
  width: min(100%, 194px);
  min-height: 50px;
  gap: 18px;
  align-items: center;
  justify-content: center;
  margin-left: 78px;
  color: #fff;
  background: var(--accent);
  border-radius: 9px;
  font-weight: 600;
  font-size: 15px;
  line-height: 22px;
  box-shadow: 0 9px 22px color-mix(in srgb, var(--accent) 24%, transparent);
  transition: background-color 180ms ease;
}

.portal:hover .portal__action,
.portal:focus-visible .portal__action {
  background: var(--accent-deep);
}

.external-note {
  position: absolute;
  right: clamp(28px, 4.6vw, 72px);
  bottom: 24px;
  z-index: 2;
  display: inline-flex;
  gap: 7px;
  align-items: center;
  margin: 0;
  color: rgba(60, 76, 94, 0.72);
  font-size: 12px;
  line-height: 20px;
}

@media (max-width: 1020px) {
  .site-shell {
    padding-inline: 28px;
  }

  .portal-grid {
    gap: 20px;
  }

  .portal {
    padding-inline: 4px;
  }

  .portal__heading {
    gap: 13px;
  }

  .portal__number {
    font-size: 44px;
  }

  .portal h2 {
    font-size: 19px;
  }

  .portal p {
    font-size: 12px;
  }

  .portal__action {
    margin-left: 58px;
  }
}

@media (max-width: 760px) {
  .site-shell {
    display: flex;
    min-height: 100dvh;
    flex-direction: column;
    padding: 24px 18px 0;
    overflow: hidden;
    background: #f7faff;
  }

  .ecosystem-scene {
    position: relative;
    inset: auto;
    order: 5;
    width: calc(100% + 36px);
    height: auto;
    margin: 34px -18px 0;
    object-fit: contain;
  }

  .brand {
    gap: 9px;
    font-size: 22px;
  }

  .brand img {
    width: 36px;
    height: 36px;
  }

  .trust-line {
    display: none;
  }

  .hero {
    margin-top: 48px;
  }

  .hero__eyebrow {
    margin-bottom: 9px;
    font-size: 10px;
    letter-spacing: 0.15em;
  }

  .hero h1 {
    font-size: clamp(37px, 11vw, 48px);
    line-height: 1.18;
  }

  .hero__description {
    max-width: 330px;
    margin-top: 14px;
    font-size: 15px;
    line-height: 25px;
  }

  .hero__description span {
    display: block;
  }

  .portal-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 38px;
  }

  .portal {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 16px;
    align-items: center;
    padding: 15px;
    background: rgba(255, 255, 255, 0.84);
    border: 1px solid rgba(104, 132, 164, 0.14);
    border-radius: 12px;
    box-shadow: 0 10px 28px rgba(35, 60, 88, 0.08);
  }

  .portal:hover {
    transform: none;
  }

  .portal__heading {
    grid-template-columns: auto 1px minmax(0, 1fr);
    gap: 12px;
    min-height: auto;
  }

  .portal__number {
    font-size: 32px;
  }

  .portal__divider {
    height: 44px;
  }

  .portal h2 {
    font-size: 17px;
  }

  .portal p {
    margin-top: 4px;
    overflow: hidden;
    font-size: 11px;
    line-height: 18px;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .portal__action {
    width: 46px;
    min-height: 46px;
    margin: 0;
    border-radius: 50%;
    font-size: 0;
  }

  .portal__action svg {
    width: 20px;
    height: 20px;
  }

  .external-note {
    position: static;
    order: 4;
    justify-content: center;
    margin: 18px 0 0;
    font-size: 11px;
  }
}

@media (max-width: 380px) {
  .site-shell {
    padding-inline: 14px;
  }

  .ecosystem-scene {
    width: calc(100% + 28px);
    margin-inline: -14px;
  }

  .portal {
    padding-inline: 12px;
  }

  .portal__heading {
    gap: 9px;
  }

  .portal__number {
    font-size: 29px;
  }

  .portal h2 {
    font-size: 16px;
  }
}

@media (max-height: 790px) and (min-width: 761px) {
  .site-shell {
    padding-top: 26px;
  }

  .hero {
    margin-top: 38px;
  }

  .portal-grid {
    margin-top: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .portal,
  .portal__action {
    transition: none;
  }
}