:root {
  --bg: #f7efe4;
  --bg-accent: #f3d4b5;
  --panel: rgba(255, 252, 246, 0.82);
  --panel-strong: #fffaf1;
  --ink: #30241b;
  --muted: #75685b;
  --line: rgba(74, 49, 28, 0.14);
  --brand: #d86b2d;
  --brand-deep: #b84f16;
  --teal: #6f9d9c;
  --gold: #e1b34b;
  --success: #4e8d63;
  --shadow: 0 18px 45px rgba(112, 69, 28, 0.14);
  --radius: 28px;
  --font-ui: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC",
    "Microsoft YaHei", sans-serif;
  --font-display: "Trebuchet MS", "Avenir Next", "PingFang SC", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-ui);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(216, 107, 45, 0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(111, 157, 156, 0.14), transparent 22%),
    linear-gradient(180deg, #fbf1e7 0%, #f6ecdf 48%, #f5f0e6 100%);
}

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
}

.landing-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.landing-topbar,
.landing-hero,
.landing-section,
.landing-footer {
  background: var(--panel);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.landing-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  margin-bottom: 20px;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-badge {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(216, 107, 45, 0.16), rgba(111, 157, 156, 0.22));
  color: var(--brand-deep);
  font-weight: 800;
}

.brand-name {
  margin: 0;
  font-weight: 800;
}

.brand-note {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.topbar-links,
.hero-actions,
.section-actions,
.landing-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.landing-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 11px 16px;
  text-decoration: none;
  border: 1px solid var(--line);
  transition: transform 0.18s ease, opacity 0.18s ease;
}

.landing-button.primary {
  background: linear-gradient(135deg, var(--brand), #ef9a59);
  border: none;
  color: #fff;
  box-shadow: 0 12px 24px rgba(216, 107, 45, 0.22);
}

.landing-button.secondary {
  background: rgba(255, 255, 255, 0.72);
}

.landing-button.ghost {
  background: transparent;
}

.landing-button:hover {
  transform: translateY(-1px);
}

.landing-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.9fr);
  gap: 20px;
  padding: 34px;
  margin-bottom: 20px;
  overflow: hidden;
  position: relative;
}

.landing-hero::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -55px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(216, 107, 45, 0.08);
}

.eyebrow,
.section-tag {
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 12px;
  color: var(--brand-deep);
}

.landing-title,
.section-title {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: -0.03em;
}

.landing-title {
  font-size: clamp(42px, 6vw, 72px);
  line-height: 0.95;
}

.landing-subtitle {
  margin: 16px 0 18px;
  font-size: 20px;
  color: var(--ink);
}

.landing-copy,
.support-copy,
.faq-item p,
.feedback-note,
.section-lead,
.hero-microcopy {
  color: var(--muted);
  line-height: 1.75;
}

.hero-highlights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.hero-stat {
  padding: 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(74, 49, 28, 0.08);
}

.hero-stat strong {
  display: block;
  font-size: 24px;
}

.hero-card {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 24px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(74, 49, 28, 0.08);
}

.hero-card ul {
  margin: 0;
  padding-left: 18px;
  line-height: 1.9;
}

.landing-grid,
.support-grid,
.thanks-grid,
.faq-grid {
  display: grid;
  gap: 18px;
}

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

.support-grid {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
}

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

.landing-section {
  padding: 28px;
  margin-bottom: 20px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 18px;
}

.section-title {
  font-size: 30px;
}

.section-lead {
  max-width: 64ch;
  margin: 12px 0 0;
}

.feature-card,
.audience-card,
.support-card,
.thanks-card,
.faq-item {
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(74, 49, 28, 0.08);
  padding: 20px;
}

.feature-card h3,
.audience-card h3,
.support-card h3,
.thanks-card summary,
.faq-item h3 {
  margin: 0 0 10px;
}

.feature-card p,
.audience-card p,
.support-card-body,
.thanks-empty,
.thanks-note {
  color: var(--muted);
  line-height: 1.7;
}

.support-copy-inline {
  margin: 0;
}

.support-copy {
  margin: 0;
}

.support-methods {
  display: grid;
  gap: 14px;
}

.afdian-poster {
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  display: block;
  border-radius: 18px;
  border: 1px solid rgba(74, 49, 28, 0.08);
  background: #fff;
  margin-bottom: 14px;
}

.qr-image {
  width: 180px;
  max-width: 100%;
  border-radius: 18px;
  border: 1px solid rgba(74, 49, 28, 0.08);
  background: #fff;
  padding: 10px;
}

.thanks-card details[open] summary {
  margin-bottom: 14px;
}

.thanks-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0;
}

.thanks-pill {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(111, 157, 156, 0.16);
}

.thanks-empty {
  list-style: none;
}

.feedback-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.feedback-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

.feedback-form input,
.feedback-form select,
.feedback-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.8);
  border-radius: 16px;
  padding: 12px 14px;
  color: var(--ink);
  outline: none;
}

.feedback-form textarea {
  resize: vertical;
}

.feedback-form input:focus,
.feedback-form select:focus,
.feedback-form textarea:focus {
  border-color: rgba(216, 107, 45, 0.55);
  box-shadow: 0 0 0 4px rgba(216, 107, 45, 0.12);
}

.full-span {
  grid-column: 1 / -1;
}

.feedback-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.feedback-note[data-state="success"] {
  color: var(--success);
}

.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.faq-item p {
  margin: 0;
}

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

.landing-footer p {
  margin: 6px 0 0;
  color: var(--muted);
}

.privacy-shell {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

@media (max-width: 1000px) {
  .landing-hero,
  .support-grid,
  .thanks-grid,
  .faq-grid,
  .landing-grid {
    grid-template-columns: 1fr;
  }

  .hero-highlights {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .landing-shell,
  .privacy-shell {
    width: min(100% - 20px, 100%);
    padding-top: 16px;
  }

  .landing-topbar,
  .landing-hero,
  .landing-section,
  .landing-footer {
    padding: 18px;
    border-radius: 22px;
  }

  .landing-topbar,
  .landing-footer,
  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .feedback-form {
    grid-template-columns: 1fr;
  }
}