:root {
  --bg: #f6ede7;
  --bg-soft: #fff8f4;
  --paper: rgba(255, 252, 248, 0.82);
  --paper-strong: rgba(255, 248, 242, 0.95);
  --text: #432630;
  --muted: #83616a;
  --primary: #8f2231;
  --primary-deep: #671523;
  --gold: #d4aa62;
  --line: rgba(143, 34, 49, 0.14);
  --shadow: 0 24px 60px rgba(98, 39, 48, 0.16);
  --radius-lg: 32px;
  --radius-md: 24px;
  --radius-sm: 18px;
  --container: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(212, 170, 98, 0.2), transparent 28%),
    radial-gradient(circle at top right, rgba(143, 34, 49, 0.12), transparent 30%),
    linear-gradient(180deg, #fff7f1 0%, #f8efe9 40%, #f4e8e1 100%);
  min-height: 100vh;
}

img {
  display: block;
  max-width: 100%;
}

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

button {
  font: inherit;
}

.page-shell {
  position: relative;
  overflow: hidden;
}

.page-shell::before,
.page-shell::after {
  content: "";
  position: fixed;
  z-index: -1;
  inset: auto;
  width: 15rem;
  height: 15rem;
  border-radius: 50%;
  filter: blur(16px);
  opacity: 0.45;
}

.page-shell::before {
  top: 6rem;
  left: -4rem;
  background: rgba(212, 170, 98, 0.32);
}

.page-shell::after {
  right: -3rem;
  bottom: 12rem;
  background: rgba(143, 34, 49, 0.18);
}

.hero,
main section,
.footer {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.hero {
  position: relative;
  min-height: 100vh;
  padding: calc(2.5rem + env(safe-area-inset-top, 0px)) 0 2rem;
  display: grid;
  align-content: center;
  gap: 1.5rem;
}

.hero__ornament {
  position: absolute;
  width: 10rem;
  height: 10rem;
  border: 1px solid rgba(212, 170, 98, 0.28);
  border-radius: 50%;
  pointer-events: none;
}

.hero__ornament::before,
.hero__ornament::after {
  content: "";
  position: absolute;
  border-radius: 50%;
}

.hero__ornament::before {
  inset: 1.1rem;
  border: 1px dashed rgba(143, 34, 49, 0.2);
}

.hero__ornament::after {
  inset: 2.5rem;
  background: rgba(255, 255, 255, 0.28);
}

.hero__ornament--left {
  top: 4rem;
  left: -3rem;
}

.hero__ornament--right {
  right: -3rem;
  top: 18rem;
}

.hero__intro,
.section-head,
.invite__card,
.promise__copy,
.timeline__item,
.footer,
.hero__photo-card,
.hero__details {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.is-visible .hero__intro,
.is-visible .section-head,
.is-visible .invite__card,
.is-visible .promise__copy,
.is-visible .timeline__item,
.is-visible .hero__photo-card,
.is-visible .hero__details,
.footer.section-observe.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.eyebrow {
  margin: 0 0 0.6rem;
  color: var(--primary);
  font-size: 0.82rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.hero__intro h1,
.section-head h2,
.promise__copy h2,
.hero__detail strong,
.info-card h3,
.timeline__content h3,
.footer strong {
  font-family: "STSong", "Songti SC", "Noto Serif SC", serif;
}

.hero__intro h1 {
  margin: 0;
  font-size: clamp(2.5rem, 8vw, 5rem);
  line-height: 1.02;
  letter-spacing: 0.06em;
}

.hero__copy {
  margin: 1rem 0 0;
  max-width: 30rem;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--muted);
}

.hero__photo-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 248, 243, 0.78));
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 0.75rem;
}

.hero__photo-card img {
  width: 100%;
  border-radius: calc(var(--radius-lg) - 8px);
  aspect-ratio: 3 / 4.2;
  object-fit: cover;
  object-position: center top;
}

.hero__photo-card figcaption {
  position: absolute;
  left: 1.7rem;
  right: 1.7rem;
  bottom: 1.7rem;
  padding: 1rem 1.1rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(85, 21, 30, 0), rgba(85, 21, 30, 0.78));
  color: #fff8f2;
}

.hero__photo-card figcaption span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  margin-bottom: 0.5rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  font-size: 1.1rem;
}

.hero__photo-card figcaption p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
}

.hero__details {
  display: grid;
  gap: 0.9rem;
}

.hero__detail,
.invite__card,
.info-card,
.location-panel,
.promise__panel,
.timeline__content,
.footer {
  background: var(--paper);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
}

.hero__detail {
  padding: 1rem 1.15rem;
  border-radius: var(--radius-md);
}

.hero__detail span,
.info-card__label,
.promise__panel span,
.timeline__time {
  display: block;
  color: var(--primary);
  letter-spacing: 0.08em;
}

.hero__detail span {
  font-size: 0.78rem;
  margin-bottom: 0.45rem;
}

.hero__detail strong {
  font-size: 1.08rem;
  font-weight: 600;
}

main {
  padding-bottom: 4rem;
}

main section {
  padding: 4.5rem 0 0;
}

.section-head {
  margin-bottom: 1.6rem;
}

.section-head h2,
.promise__copy h2 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 3rem);
  letter-spacing: 0.06em;
}

.invite__card {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
}

.invite__card p {
  margin: 0;
  font-size: 1rem;
  line-height: 2;
  color: var(--muted);
}

.invite__card p + p {
  margin-top: 1rem;
}

.info-grid__cards {
  display: grid;
  gap: 1rem;
}

.info-card,
.location-panel,
.timeline__content {
  padding: 1.35rem;
  border-radius: var(--radius-md);
}

.info-card__label {
  font-size: 0.8rem;
  margin-bottom: 0.7rem;
}

.info-card h3,
.timeline__content h3 {
  margin: 0;
  font-size: 1.25rem;
}

.info-card p,
.location-panel p,
.promise__copy p:last-child,
.timeline__content p,
.footer p {
  margin: 0.7rem 0 0;
  line-height: 1.9;
  color: var(--muted);
}

.location-panel {
  margin-top: 1rem;
  display: grid;
  gap: 1.2rem;
}

.location-panel__copy h3 {
  margin: 0;
  font-size: 1.25rem;
  font-family: "STSong", "Songti SC", "Noto Serif SC", serif;
}

.location-panel__copy p + p {
  margin-top: 0.4rem;
}

.location-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.location-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  font-size: 0.94rem;
  transition: transform 200ms ease, box-shadow 200ms ease, background 200ms ease;
}

.location-link:hover,
.location-link:focus-visible {
  transform: translateY(-2px);
}

.location-link--solid {
  color: #fff9f5;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  box-shadow: 0 18px 30px rgba(103, 21, 35, 0.2);
}

.promise {
  display: grid;
  gap: 1.2rem;
}

.promise__panel {
  padding: 1.3rem;
  border-radius: var(--radius-lg);
  display: grid;
  gap: 1rem;
}

.promise__panel div {
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.52);
  border: 1px solid rgba(143, 34, 49, 0.08);
}

.promise__panel strong {
  display: block;
  margin-top: 0.5rem;
  font-size: 1.15rem;
  font-family: "STSong", "Songti SC", "Noto Serif SC", serif;
}

.timeline {
  --timeline-time-width: 4.8rem;
  --timeline-gap: 1rem;
  --timeline-axis-x: calc(var(--timeline-time-width) + 0.3rem);
  position: relative;
  display: grid;
  gap: 1rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: var(--timeline-axis-x);
  top: 0.35rem;
  bottom: 0.35rem;
  width: 1px;
  background: linear-gradient(180deg, rgba(143, 34, 49, 0.25), rgba(212, 170, 98, 0.5));
}

.timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: var(--timeline-time-width) 1fr;
  gap: var(--timeline-gap);
  align-items: start;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: calc(var(--timeline-axis-x) - 0.28rem);
  top: 0.42rem;
  width: 0.56rem;
  height: 0.56rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--primary));
  box-shadow: 0 0 0 6px rgba(255, 248, 242, 0.88);
}

.timeline__time {
  padding-top: 0.15rem;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: right;
  padding-right: 0.5rem;
}

.timeline__content {
  padding: 1.2rem;
  border-radius: var(--radius-md);
}

.footer {
  margin-top: 4.5rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  text-align: center;
}

.footer strong {
  display: inline-block;
  margin-top: 1rem;
  font-size: 1.4rem;
  color: var(--primary);
  letter-spacing: 0.18em;
}

@media (min-width: 768px) {
  .hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
    grid-template-areas:
      "intro photo"
      "details photo";
    gap: 1.25rem 2rem;
  }

  .hero__intro {
    grid-area: intro;
    align-self: end;
    padding-right: 1rem;
  }

  .hero__photo-card {
    grid-area: photo;
    align-self: center;
  }

  .hero__details {
    grid-area: details;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .info-grid__cards,
  .promise {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .location-panel {
    grid-template-columns: minmax(0, 1.4fr) auto;
    align-items: center;
  }

  .promise__copy {
    grid-column: span 2;
  }

  .promise__panel {
    align-self: start;
  }

  .timeline {
    gap: 1.15rem;
  }
}

@media (min-width: 1024px) {
  .hero {
    padding-top: 3.5rem;
    gap: 1.6rem 3rem;
  }

  .hero__copy,
  .invite__card,
  .promise__copy p:last-child,
  .timeline__content p {
    font-size: 1.05rem;
  }

  main section {
    padding-top: 5rem;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
}