:root {
  --bg: #f8d0cf;
  --bg-soft: #fce8e1;
  --paper: #fff7ef;
  --ink: #40231f;
  --ink-soft: #73524d;
  --line: rgba(64, 35, 31, 0.12);
  --accent: #ffee00;
  --accent-deep: #f7c500;
  --white: #ffffff;
  --shadow: 0 18px 60px rgba(97, 47, 41, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.6), transparent 28%),
    linear-gradient(180deg, #f4c2c4 0%, var(--bg) 46%, #f7ddd4 100%);
  color: var(--ink);
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
}

body::before,
body::after {
  content: "";
  position: fixed;
  z-index: 0;
  inset: auto;
  pointer-events: none;
  opacity: 0.55;
}

body::before {
  top: 90px;
  right: 6vw;
  width: 280px;
  height: 280px;
  border-radius: 42% 58% 48% 52%;
  background: rgba(255, 245, 170, 0.38);
  filter: blur(10px);
}

body::after {
  left: -40px;
  bottom: 80px;
  width: 320px;
  height: 320px;
  border-radius: 62% 38% 45% 55%;
  background: rgba(255, 255, 255, 0.26);
  filter: blur(20px);
}

.page-shell {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 0 24px;
}

.brandmark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brandmark__dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 8px rgba(255, 238, 0, 0.24);
}

.brandmark__text {
  font-size: 0.95rem;
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar__link,
.topbar__button,
.primary-button,
.secondary-button,
.text-link {
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.topbar__link,
.text-link {
  color: var(--ink);
  text-decoration: none;
}

.topbar__button,
.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
}

.topbar__button,
.primary-button {
  background: var(--ink);
  color: var(--white);
  box-shadow: var(--shadow);
}

.secondary-button {
  border: 1px solid rgba(64, 35, 31, 0.16);
  background: rgba(255, 255, 255, 0.58);
  color: var(--ink);
}

.topbar__button:hover,
.primary-button:hover,
.secondary-button:hover,
.topbar__link:hover,
.text-link:hover {
  transform: translateY(-1px);
}

.topbar__button:disabled,
.primary-button:disabled,
.secondary-button:disabled {
  opacity: 0.72;
  cursor: not-allowed;
  transform: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  align-items: center;
  gap: 34px;
  padding: 34px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 32px;
  background: linear-gradient(145deg, rgba(255, 248, 245, 0.68), rgba(255, 255, 255, 0.28));
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 14px;
  color: rgba(64, 35, 31, 0.72);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.hero h1,
.split-panel h2,
.cta-panel h2 {
  margin: 0;
  line-height: 1.05;
  font-family: "Georgia", "Songti SC", serif;
}

.hero h1 {
  font-size: clamp(2.6rem, 5vw, 5rem);
  max-width: 9ch;
}

.hero__lead,
.split-panel__intro p,
.cta-panel p,
.feature-card p,
.info-row span {
  color: var(--ink-soft);
  line-height: 1.75;
  font-size: 1rem;
}

.hero__lead {
  max-width: 630px;
  margin: 22px 0 0;
}

.hero__status {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 22px 0 0;
}

.status-chip {
  padding: 10px 16px;
  border: 1px solid rgba(64, 35, 31, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.44);
  font-size: 0.95rem;
  font-weight: 600;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 0;
}

.hero__notice {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  margin: 28px 0 0;
  padding: 18px;
  border: 1px dashed rgba(64, 35, 31, 0.18);
  border-radius: 22px;
  background: rgba(255, 247, 239, 0.72);
}

.hero__notice p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.65;
}

.hero__notice-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 800;
}

.hero__art {
  display: flex;
  justify-content: center;
}

.logo-card {
  width: min(100%, 460px);
  transform: rotate(-3deg);
}

.logo-card__paper {
  overflow: hidden;
  border: 2px solid rgba(64, 35, 31, 0.1);
  border-radius: 28px;
  background: var(--paper);
  box-shadow: 0 24px 60px rgba(73, 30, 24, 0.18);
}

.logo-card__image {
  display: block;
  width: 100%;
  height: auto;
}

.logo-card__caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
  padding: 0 8px;
  color: var(--ink);
}

.logo-card__caption span {
  color: rgba(64, 35, 31, 0.56);
  font-size: 0.9rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.feature-card,
.split-panel,
.cta-panel {
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.44);
  box-shadow: var(--shadow);
}

.feature-card {
  padding: 24px;
}

.feature-card__index {
  margin: 0 0 18px;
  color: rgba(64, 35, 31, 0.46);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.feature-card h2 {
  margin: 0 0 14px;
  font-size: 1.35rem;
  font-family: "Georgia", "Songti SC", serif;
}

.feature-card p {
  margin: 0;
}

.split-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 28px;
  margin-top: 24px;
  padding: 30px;
}

.split-panel__intro h2 {
  font-size: clamp(2rem, 3vw, 3rem);
  margin-bottom: 18px;
}

.split-panel__intro p {
  margin: 0;
}

.split-panel__list {
  display: grid;
  gap: 12px;
}

.info-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 18px;
  border-radius: 20px;
  background: rgba(255, 247, 239, 0.82);
  border: 1px solid rgba(64, 35, 31, 0.08);
}

.info-row strong {
  color: var(--ink);
  font-size: 1.02rem;
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-top: 24px;
  padding: 28px 30px;
  background:
    linear-gradient(135deg, rgba(255, 238, 0, 0.18), rgba(255, 255, 255, 0.5)),
    rgba(255, 255, 255, 0.5);
}

.cta-panel h2 {
  margin-bottom: 14px;
  font-size: clamp(1.8rem, 2.8vw, 2.6rem);
}

.cta-panel p {
  margin: 0;
}

.cta-panel__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.invite-main {
  display: grid;
  gap: 24px;
}

.invite-hero,
.invite-shell {
  display: grid;
  gap: 24px;
}

.invite-hero {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 380px);
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 30px;
  background: linear-gradient(145deg, rgba(255, 248, 245, 0.66), rgba(255, 255, 255, 0.28));
  box-shadow: var(--shadow);
}

.invite-summary,
.invite-card {
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.44);
  box-shadow: var(--shadow);
}

.invite-summary h2,
.invite-card__header h2 {
  margin: 0 0 14px;
  font-size: clamp(1.7rem, 2.4vw, 2.2rem);
  line-height: 1.08;
  font-family: "Georgia", "Songti SC", serif;
}

.invite-summary__list {
  margin: 0;
  padding-left: 20px;
  color: var(--ink-soft);
  line-height: 1.9;
}

.invite-summary__tip,
.invite-card__header p,
.invite-placeholder p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.75;
}

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

.invite-card {
  display: grid;
  gap: 18px;
}

.invite-card--muted {
  opacity: 0.9;
}

.invite-form {
  display: grid;
  gap: 16px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid rgba(64, 35, 31, 0.14);
  border-radius: 18px;
  background: rgba(255, 251, 248, 0.92);
  color: var(--ink);
  font: inherit;
  padding: 14px 16px;
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.field textarea {
  resize: vertical;
  min-height: 120px;
}

.field input:focus,
.field textarea:focus {
  border-color: rgba(64, 35, 31, 0.32);
  box-shadow: 0 0 0 4px rgba(255, 238, 0, 0.16);
}

.invite-submit {
  width: 100%;
}

.invite-placeholder {
  display: grid;
  place-items: center;
  min-height: 220px;
  padding: 24px;
  border: 1px dashed rgba(64, 35, 31, 0.18);
  border-radius: 22px;
  background: rgba(255, 247, 239, 0.72);
  text-align: center;
}

.message-box {
  margin: 0;
  padding: 14px 16px;
  border-radius: 18px;
  line-height: 1.6;
  font-size: 0.95rem;
}

.message-box--success {
  background: rgba(232, 255, 213, 0.72);
  border: 1px solid rgba(88, 145, 29, 0.18);
  color: #355117;
}

.message-box--error {
  background: rgba(255, 232, 232, 0.82);
  border: 1px solid rgba(180, 56, 56, 0.18);
  color: #7c2222;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  padding: 18px 8px 0;
  color: rgba(64, 35, 31, 0.68);
  font-size: 0.92rem;
}

.footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .hero,
  .split-panel,
  .cta-panel,
  .feature-grid,
  .invite-hero,
  .invite-shell {
    grid-template-columns: 1fr;
  }

  .cta-panel {
    align-items: flex-start;
  }

  .hero {
    padding: 26px;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 20px, 100%);
    padding-top: 16px;
  }

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

  .topbar__actions,
  .hero__actions,
  .cta-panel__actions {
    width: 100%;
  }

  .topbar__button,
  .primary-button,
  .secondary-button {
    flex: 1 1 0;
  }

  .hero {
    gap: 26px;
    padding: 20px;
    border-radius: 24px;
  }

  .invite-hero,
  .invite-summary,
  .invite-card {
    padding: 20px;
    border-radius: 22px;
  }

  .hero h1 {
    max-width: none;
    font-size: 2.6rem;
  }

  .feature-card,
  .split-panel,
  .cta-panel {
    border-radius: 22px;
  }

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

  .logo-card {
    transform: none;
  }

  .footer {
    padding: 8px 4px 0;
  }
}