:root {
  --ink: #392226;
  --muted: #76565c;
  --pink: #e98aa0;
  --pink-deep: #c87484;
  --paper: rgba(255, 250, 248, 0.88);
  --line: rgba(222, 150, 162, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(rgba(255, 244, 242, 0.82), rgba(255, 244, 242, 0.9)),
    url("./assets/hero.png") center top / cover no-repeat;
  color: var(--ink);
  font-family:
    ui-serif,
    "Noto Serif TC",
    "Songti TC",
    Georgia,
    serif;
}

body::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  min-height: 100%;
  background:
    radial-gradient(circle at 15% 12%, rgba(255, 255, 255, 0.72), transparent 30rem),
    radial-gradient(circle at 88% 18%, rgba(233, 138, 160, 0.2), transparent 24rem);
  pointer-events: none;
}

main {
  overflow: hidden;
}

.panel,
.scene-section,
.register-section {
  position: relative;
}

.hero {
  min-height: 100dvh;
  margin: 18px;
  overflow: hidden;
  border-radius: clamp(26px, 4vw, 54px);
  background: #fff7f4;
  box-shadow: 0 36px 120px rgba(139, 74, 86, 0.22);
  outline: 1px solid rgba(238, 191, 197, 0.72);
}

.hero-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 58% center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 16% 48%, rgba(255, 250, 248, 0.86) 0%, rgba(255, 250, 248, 0.7) 27%, rgba(255, 250, 248, 0.16) 48%, rgba(255, 250, 248, 0) 64%),
    linear-gradient(90deg, rgba(255, 247, 244, 0.72) 0%, rgba(255, 247, 244, 0.36) 24%, rgba(255, 247, 244, 0.06) 47%, rgba(255, 247, 244, 0) 100%),
    linear-gradient(180deg, rgba(255, 247, 244, 0), rgba(255, 247, 244, 0.04));
}

.hero-copy {
  position: relative;
  z-index: 1;
  width: min(43rem, 92vw);
  padding: clamp(3.25rem, 6.5vw, 7rem) clamp(2rem, 5vw, 5.5rem) clamp(2rem, 5vw, 5.5rem);
}

.kicker {
  margin: 0;
  color: var(--pink);
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  font-size: 0.88rem;
  font-weight: 900;
  letter-spacing: 0.2em;
}

h1,
h2,
p {
  text-wrap: pretty;
}

h1 {
  margin: 2rem 0 0;
  font-size: clamp(3.2rem, 6.8vw, 6.6rem);
  font-weight: 950;
  line-height: 1;
}

h1 span {
  display: block;
}

h1 span:last-child,
.lead strong,
.reward-copy h2 > span:last-child,
.reward-copy h2 .normal span {
  color: var(--pink);
}

.lead {
  margin: 2.2rem 0 0;
  max-width: 31rem;
  font-size: clamp(1.85rem, 3.6vw, 3.55rem);
  font-weight: 950;
  line-height: 1.02;
}

.lead strong {
  font-size: 1.22em;
}

.hero-info,
.fit-row article,
.uses p {
  border: 1px solid var(--line);
  background: rgba(255, 250, 248, 0.82);
  box-shadow: 0 18px 54px rgba(139, 74, 86, 0.1);
}

.hero-info {
  width: min(34rem, 100%);
  margin-top: 2rem;
  border-width: 0 0 1px;
  border-radius: 0;
  padding: 0 0 1.15rem;
  background: rgba(255, 250, 248, 0.2);
  box-shadow: none;
}

.hero-info p {
  margin: 0;
  color: #4b2f34;
  font-size: clamp(1.12rem, 1.9vw, 1.6rem);
  font-weight: 900;
}

.hero-info div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 0.9rem;
}

.hero-info span {
  border-radius: 999px;
  background: rgba(233, 138, 160, 0.18);
  padding: 0.68rem 1rem;
  color: #a65c69;
  font-family:
    ui-sans-serif,
    system-ui,
    sans-serif;
  font-size: 0.95rem;
  font-weight: 900;
}

.primary-button,
form button {
  display: inline-flex;
  min-height: 58px;
  align-items: center;
  gap: 1.2rem;
  margin-top: 2.4rem;
  border: 0;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  cursor: pointer;
  font-family:
    ui-sans-serif,
    system-ui,
    sans-serif;
  font-size: 1.05rem;
  font-weight: 900;
  padding: 0.45rem 0.45rem 0.45rem 1.55rem;
  text-decoration: none;
  transition:
    transform 700ms cubic-bezier(0.32, 0.72, 0, 1),
    background 700ms cubic-bezier(0.32, 0.72, 0, 1);
}

.primary-button:hover,
form button:hover {
  transform: translateY(-2px);
  background: #583039;
}

.primary-button i,
form button i {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  font-style: normal;
}

.scene-section,
.register-section {
  padding: clamp(4rem, 9vw, 8rem) clamp(1.1rem, 4vw, 3rem);
}

.scene-bg {
  position: absolute;
  inset: 1.5rem;
  z-index: -1;
  border-radius: 48px;
  background:
    linear-gradient(rgba(255, 247, 244, 0.78), rgba(255, 247, 244, 0.92)),
    url("./assets/hero.png") center / cover no-repeat;
  box-shadow: inset 0 0 0 1px var(--line);
}

.scene-bg.soft {
  filter: saturate(0.86);
}

.content-grid,
.register-section {
  display: grid;
  max-width: 1280px;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(2rem, 5vw, 5rem);
  margin: 0 auto;
  align-items: center;
}

.content-grid.reverse {
  grid-template-columns: 0.86fr 1.14fr;
}

.section-title h2,
.reward-copy h2,
.form-head h2 {
  margin: 1rem 0 0;
  font-size: clamp(2.8rem, 6vw, 6.8rem);
  font-weight: 950;
  line-height: 1.02;
}

.reward-copy h2 > span {
  display: block;
}

.reward-copy h2 .normal {
  color: var(--ink);
}

.body-copy,
.reward-copy p:last-child {
  max-width: 42rem;
  color: var(--muted);
  font-size: clamp(1.15rem, 1.6vw, 1.45rem);
  font-weight: 800;
  line-height: 1.9;
}

.paper-card,
.form-card {
  border: 1px solid var(--line);
  border-radius: 34px;
  background: var(--paper);
  box-shadow: 0 28px 96px rgba(139, 74, 86, 0.14);
}

.no-need {
  padding: clamp(1.6rem, 3vw, 3rem);
}

.no-need p {
  margin: 0;
  border-bottom: 1px solid var(--line);
  padding: 1.25rem 0;
  font-size: clamp(1.5rem, 2.8vw, 2.8rem);
  font-weight: 950;
}

.no-need p:last-child {
  border-bottom: 0;
}

.fit-row {
  display: grid;
  max-width: 1280px;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 3rem auto 0;
}

.fit-row article {
  border-radius: 28px;
  padding: 1.5rem;
}

.fit-row span {
  display: block;
  font-size: 2rem;
}

.fit-row b {
  display: block;
  margin-top: 1rem;
  font-size: clamp(1.7rem, 3vw, 3.2rem);
  line-height: 1;
}

.fit-row small {
  display: block;
  margin-top: 0.8rem;
  color: var(--pink-deep);
  font-family:
    ui-sans-serif,
    system-ui,
    sans-serif;
  font-weight: 900;
}

.uses {
  display: grid;
  gap: 1rem;
}

.uses p {
  margin: 0;
  border-radius: 26px;
  padding: 1.35rem 1.6rem;
  text-align: right;
  font-size: clamp(2rem, 4vw, 4.6rem);
  font-weight: 950;
  line-height: 1;
}

.register-section {
  align-items: start;
}

.reward-copy {
  position: sticky;
  top: 2rem;
}

.form-card {
  padding: clamp(1.2rem, 3vw, 2.2rem);
}

.form-head {
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.5rem;
}

.form-head h2 {
  font-size: clamp(2.2rem, 4vw, 4.1rem);
}

.fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

label {
  display: grid;
  gap: 0.55rem;
  color: var(--ink);
  font-family:
    ui-sans-serif,
    system-ui,
    sans-serif;
  font-size: 0.95rem;
  font-weight: 900;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 243, 241, 0.88);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  outline: none;
  padding: 1rem;
}

input:focus,
textarea:focus {
  border-color: var(--pink);
  background: white;
}

.message-field {
  margin-top: 1rem;
}

form button {
  width: 100%;
  justify-content: space-between;
}

.form-status {
  min-height: 1.4rem;
  margin: 1rem 0 0;
  color: #8a4f59;
  font-family:
    ui-sans-serif,
    system-ui,
    sans-serif;
  font-weight: 900;
}

@media (max-width: 640px) {
  .hero {
    min-height: auto;
    margin: 10px;
  }

  .hero-photo {
    position: relative;
    height: 46vh;
    min-height: 330px;
  }

  .hero-overlay {
    background: linear-gradient(180deg, rgba(255, 247, 244, 0) 0%, rgba(255, 247, 244, 0.08) 46%, #fff7f4 58%, #fff7f4 100%);
  }

  .hero-copy {
    margin-top: -2rem;
    padding: 2.2rem 1.2rem 2rem;
  }


  h1 {
    font-size: clamp(3rem, 14vw, 5rem);
  }

  .hero-info,
  .fields,
  .fit-row,
  .content-grid,
  .content-grid.reverse,
  .register-section {
    grid-template-columns: 1fr;
  }

  .scene-section,
  .register-section {
    padding: 4rem 1rem;
  }

  .scene-bg {
    inset: 0.75rem;
    border-radius: 30px;
  }

  .reward-copy {
    position: relative;
    top: auto;
  }

  .uses p {
    text-align: left;
  }
}