:root {
  color-scheme: light;
  --ink: #243447;
  --muted: #667085;
  --paper: #ffffff;
  --cream: #fff8ef;
  --line: #e7eaf0;
  --coral: #ff6f61;
  --mint: #54c9b8;
  --sun: #ffd166;
  --sky: #5a9df8;
  --plum: #7c5cff;
  --green: #8bd17c;
  --shadow: 0 20px 50px rgba(36, 52, 71, 0.12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    "Microsoft YaHei",
    "PingFang SC",
    "Noto Sans SC",
    system-ui,
    sans-serif;
  color: var(--ink);
  background: var(--cream);
}

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

.topbar {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 58px);
  background: rgba(255, 248, 239, 0.86);
  border-bottom: 1px solid rgba(231, 234, 240, 0.9);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 150px;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  background: var(--coral);
  color: #fff;
  font-size: 26px;
  font-weight: 900;
  line-height: 1;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 19px;
  letter-spacing: 0;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 34px);
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.nav a:hover {
  color: var(--coral);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}

.hero {
  position: relative;
  min-height: 92vh;
  padding: 140px clamp(18px, 6vw, 84px) 34px;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 8%, rgba(255, 209, 102, 0.46), transparent 25%),
    linear-gradient(135deg, #fff8ef 0%, #fff 58%, #f0fff9 100%);
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--coral);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(52px, 10vw, 116px);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 24px;
  line-height: 1.18;
}

.hero-copy > p:not(.eyebrow),
.section-heading p,
.experience-copy p,
.store-copy p,
.membership p,
.feature p,
.category-grid p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 900;
}

.button.primary {
  background: var(--coral);
  color: #fff;
  box-shadow: 0 12px 26px rgba(255, 111, 97, 0.28);
}

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

.hero-art {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.sun,
.orbit,
.kid {
  position: absolute;
}

.sun {
  top: 120px;
  right: 12%;
  width: clamp(120px, 18vw, 240px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--sun);
}

.orbit {
  border: 10px solid;
  border-radius: 50%;
  opacity: 0.8;
}

.orbit-a {
  right: -80px;
  bottom: 120px;
  width: 280px;
  aspect-ratio: 1;
  border-color: var(--mint);
}

.orbit-b {
  right: 24%;
  bottom: 80px;
  width: 160px;
  aspect-ratio: 1;
  border-color: var(--sky);
}

.kid {
  width: min(28vw, 290px);
  min-width: 170px;
  aspect-ratio: 0.72;
  bottom: 70px;
  border-radius: 42% 42% 8px 8px;
  box-shadow: var(--shadow);
}

.kid::before {
  content: "";
  position: absolute;
  top: -52px;
  left: 50%;
  width: 76px;
  aspect-ratio: 1;
  transform: translateX(-50%);
  border-radius: 50%;
  background: #ffd9b8;
}

.kid::after {
  content: "";
  position: absolute;
  left: 18%;
  right: 18%;
  bottom: -30px;
  height: 44px;
  border-radius: 0 0 26px 26px;
  background: var(--ink);
}

.kid-left {
  right: 25%;
  background:
    linear-gradient(90deg, transparent 45%, rgba(255, 255, 255, 0.45) 45% 55%, transparent 55%),
    var(--mint);
}

.kid-right {
  right: 7%;
  bottom: 38px;
  width: min(25vw, 250px);
  background:
    linear-gradient(90deg, transparent 43%, rgba(255, 255, 255, 0.45) 43% 57%, transparent 57%),
    var(--coral);
}

.hero-strip {
  position: absolute;
  z-index: 2;
  left: clamp(18px, 6vw, 84px);
  right: clamp(18px, 6vw, 84px);
  bottom: 20px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.hero-strip span {
  min-height: 54px;
  padding: 16px 12px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(231, 234, 240, 0.9);
  text-align: center;
  font-weight: 900;
  backdrop-filter: blur(12px);
}

.section {
  padding: clamp(72px, 10vw, 124px) clamp(18px, 6vw, 84px);
  background: var(--paper);
}

.section-tight {
  padding-top: clamp(64px, 9vw, 96px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 32px;
}

.section-heading.split {
  display: grid;
  max-width: none;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 32px;
  align-items: end;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 18px;
}

.feature {
  display: grid;
  min-height: 300px;
  align-content: end;
  gap: 20px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.feature-large {
  grid-row: span 2;
  min-height: 620px;
}

.feature-visual {
  position: relative;
  min-height: 170px;
  border-radius: var(--radius);
  overflow: hidden;
}

.feature-large .feature-visual {
  min-height: 400px;
}

.feature-visual::before,
.feature-visual::after {
  content: "";
  position: absolute;
}

.picnic {
  background: linear-gradient(135deg, #bcefe5, #fff0be);
}

.picnic::before {
  left: 12%;
  bottom: 0;
  width: 34%;
  height: 72%;
  border-radius: 120px 120px 8px 8px;
  background: var(--coral);
}

.picnic::after {
  right: 14%;
  bottom: 12%;
  width: 34%;
  height: 24%;
  border-radius: 50%;
  background: var(--sky);
}

.campus {
  background: linear-gradient(135deg, #e8f0ff, #fff);
}

.campus::before {
  left: 15%;
  bottom: 0;
  width: 52%;
  height: 65%;
  border-radius: 8px 8px 0 0;
  background: var(--sky);
}

.campus::after {
  right: 13%;
  bottom: 18%;
  width: 24%;
  height: 42%;
  border-radius: 50% 50% 8px 8px;
  background: var(--sun);
}

.sport {
  background: linear-gradient(135deg, #fff0ef, #edfdf6);
}

.sport::before {
  left: 10%;
  top: 18%;
  width: 46%;
  height: 46%;
  border-radius: 50%;
  background: var(--mint);
}

.sport::after {
  right: 10%;
  bottom: 0;
  width: 38%;
  height: 74%;
  border-radius: 120px 120px 8px 8px;
  background: var(--plum);
}

.tag {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--coral);
  font-size: 13px;
  font-weight: 900;
}

.categories {
  background: var(--cream);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.category-grid article {
  min-height: 260px;
  padding: 26px 22px;
  border: 1px solid rgba(231, 234, 240, 0.9);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
}

.icon {
  display: block;
  width: 58px;
  height: 58px;
  margin-bottom: 26px;
  border-radius: 18px;
}

.clothes {
  background:
    linear-gradient(90deg, transparent 42%, #fff 42% 58%, transparent 58%),
    var(--coral);
}

.shoes {
  width: 72px;
  border-radius: 40px 40px 14px 14px;
  background: var(--sky);
}

.bag {
  border-radius: 8px 8px 18px 18px;
  background:
    radial-gradient(circle at 50% 0, transparent 27%, var(--sun) 28%),
    var(--sun);
}

.home {
  clip-path: polygon(50% 0, 100% 40%, 100% 100%, 0 100%, 0 40%);
  background: var(--mint);
}

.experience {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: 44px;
  align-items: center;
  background: #fff;
}

.steps {
  display: grid;
  gap: 14px;
}

.steps div {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr);
  align-items: center;
  min-height: 84px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(90deg, #fff, #fff8ef);
}

.steps strong {
  color: var(--coral);
  font-size: 28px;
}

.steps span {
  font-size: 22px;
  font-weight: 900;
}

.stores {
  background: #f5fbff;
}

.store-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 28px;
  align-items: stretch;
}

.map-panel {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.65) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.65) 1px, transparent 1px),
    linear-gradient(135deg, #bde9ff, #fff5d8);
  background-size: 52px 52px, 52px 52px, auto;
}

.pin {
  position: absolute;
  width: 28px;
  height: 28px;
  border: 6px solid #fff;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: var(--shadow);
}

.pin-a {
  left: 22%;
  top: 26%;
}

.pin-b {
  right: 24%;
  top: 34%;
  background: var(--plum);
}

.pin-c {
  left: 48%;
  bottom: 22%;
  background: var(--mint);
}

.route {
  position: absolute;
  height: 8px;
  border-radius: 999px;
  background: rgba(36, 52, 71, 0.2);
  transform-origin: left center;
}

.route-a {
  left: 25%;
  top: 31%;
  width: 42%;
  transform: rotate(9deg);
}

.route-b {
  left: 51%;
  top: 56%;
  width: 28%;
  transform: rotate(-24deg);
}

.store-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px;
  border-radius: var(--radius);
  background: var(--paper);
  border: 1px solid var(--line);
}

.membership {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 28px;
  align-items: center;
  background: var(--ink);
  color: #fff;
}

.membership p {
  color: rgba(255, 255, 255, 0.76);
}

.signup {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: end;
}

.signup label {
  display: grid;
  gap: 8px;
  font-weight: 900;
}

.signup input {
  width: 100%;
  min-height: 52px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font: inherit;
}

.signup input::placeholder {
  color: rgba(255, 255, 255, 0.58);
}

.form-note {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 13px;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 26px clamp(18px, 6vw, 84px);
  background: #fff;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .hero {
    min-height: 940px;
  }

  .kid-left {
    right: 32%;
  }

  .kid-right {
    right: 5%;
  }

  .feature-grid,
  .section-heading.split,
  .experience,
  .store-layout,
  .membership {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  .topbar {
    padding: 12px 16px;
  }

  .nav-toggle {
    display: block;
  }

  .nav {
    position: absolute;
    top: 67px;
    left: 12px;
    right: 12px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper);
    box-shadow: var(--shadow);
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    padding: 14px 12px;
  }

  .hero {
    min-height: 860px;
    padding-top: 110px;
  }

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

  .kid {
    min-width: 140px;
    bottom: 106px;
  }

  .kid-left {
    right: 42%;
  }

  .kid-right {
    right: 10px;
  }

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

  .feature-large {
    min-height: 520px;
  }

  .feature-large .feature-visual {
    min-height: 280px;
  }

  .signup {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 460px) {
  h1 {
    font-size: 48px;
  }

  .hero {
    min-height: 820px;
  }

  .hero-actions,
  .hero-actions .button {
    width: 100%;
  }

  .hero-strip span {
    min-height: 48px;
    font-size: 14px;
  }

  .category-grid {
    grid-template-columns: 1fr;
  }

  .steps div {
    grid-template-columns: 64px minmax(0, 1fr);
  }

  .steps span {
    font-size: 18px;
  }
}