:root {
  --bg-top: #ece4d7;
  --bg-bottom: #f8f3ea;
  --paper: rgba(255, 252, 246, 0.92);
  --paper-strong: rgba(255, 255, 255, 0.96);
  --ink: #5d5a4e;
  --ink-soft: #87806f;
  --accent: #687354;
  --accent-dark: #556042;
  --line: rgba(113, 104, 83, 0.15);
  --shadow: 0 16px 42px rgba(113, 96, 68, 0.14);
  --radius-lg: 28px;
  --radius-md: 22px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  color: var(--ink);
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", serif;
  background:
    radial-gradient(circle at top left, rgba(191, 177, 146, 0.22), transparent 32%),
    radial-gradient(circle at bottom right, rgba(111, 128, 92, 0.18), transparent 28%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

body::before,
body::after {
  content: "";
  position: fixed;
  z-index: 0;
  pointer-events: none;
  width: 180px;
  height: 180px;
  opacity: 0.42;
  filter: blur(0.2px);
}

body::before {
  top: -24px;
  left: -30px;
  background:
    linear-gradient(145deg, rgba(204, 190, 156, 0.7), rgba(204, 190, 156, 0.2)),
    radial-gradient(circle at 80% 10%, rgba(100, 122, 76, 0.16), transparent 40%);
  clip-path: polygon(0 0, 92% 0, 68% 62%, 18% 100%, 0 100%);
}

body::after {
  right: -42px;
  bottom: -24px;
  background:
    linear-gradient(145deg, rgba(104, 116, 83, 0.85), rgba(104, 116, 83, 0.45)),
    radial-gradient(circle at 14% 18%, rgba(255, 255, 255, 0.28), transparent 38%);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%, 0 34%);
}

.page-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  padding: 18px 14px 28px;
}

.page {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
}

.paper-edge {
  position: absolute;
  left: 0;
  right: 0;
  height: 28px;
  opacity: 0.46;
  background:
    radial-gradient(circle at 24px 0, rgba(255, 255, 255, 0.85) 0 16px, transparent 16px),
    radial-gradient(circle at 72px 0, rgba(255, 255, 255, 0.75) 0 14px, transparent 14px),
    radial-gradient(circle at 124px 4px, rgba(255, 255, 255, 0.8) 0 18px, transparent 18px),
    radial-gradient(circle at 174px 2px, rgba(255, 255, 255, 0.7) 0 12px, transparent 12px);
}

.paper-edge-top {
  top: 0;
}

.paper-edge-bottom {
  bottom: 0;
  transform: rotate(180deg);
}

.hero {
  position: relative;
  padding: 64px 22px 34px;
  text-align: center;
}

.hero-kicker {
  margin: 0 0 16px;
  color: var(--ink-soft);
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  color: var(--accent-dark);
  font-family: "STKaiti", "KaiTi", "Kaiti SC", serif;
  font-size: clamp(54px, 14vw, 84px);
  font-weight: 400;
}

.hero-subtitle {
  max-width: 26rem;
  margin: 14px auto 0;
  color: var(--ink-soft);
  line-height: 1.8;
  font-size: 15px;
}

.hero-sprig {
  position: absolute;
  width: 92px;
  height: 140px;
  opacity: 0.3;
}

.hero-sprig::before,
.hero-sprig::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 100px;
}

.hero-sprig-left {
  top: 10px;
  left: 0;
}

.hero-sprig-left::before {
  border-left: 2px solid rgba(104, 116, 83, 0.35);
  border-bottom: 2px solid rgba(104, 116, 83, 0.35);
  transform: skew(-18deg) rotate(-10deg);
}

.hero-sprig-right {
  right: 2px;
  top: 18px;
}

.hero-sprig-right::before {
  border-right: 2px solid rgba(104, 116, 83, 0.3);
  border-top: 2px solid rgba(104, 116, 83, 0.3);
  transform: skew(12deg) rotate(10deg);
}

.composer-card,
.message-item,
.empty-state {
  background: var(--paper);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
}

.composer-card {
  padding: 22px 18px 18px;
  border-radius: var(--radius-lg);
}

.composer-head {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-soft);
  font-size: 18px;
}

.composer-icon {
  font-size: 20px;
}

textarea {
  width: 100%;
  min-height: 180px;
  margin-top: 16px;
  padding: 0;
  border: 0;
  outline: none;
  background: transparent;
  resize: vertical;
  color: var(--ink);
  font: inherit;
  font-size: 18px;
  line-height: 1.8;
}

textarea::placeholder {
  color: #a19a8b;
}

.composer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0 18px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 14px;
}

.submit-button {
  width: 100%;
  border: 0;
  border-radius: 999px;
  padding: 16px 20px;
  color: #f8f4ec;
  background:
    linear-gradient(180deg, rgba(111, 123, 89, 0.94), rgba(94, 105, 75, 0.98));
  box-shadow: 0 10px 24px rgba(91, 102, 71, 0.18);
  font: inherit;
  font-size: 22px;
  letter-spacing: 0.12em;
}

.submit-button:disabled {
  opacity: 0.7;
}

.status-text {
  min-height: 24px;
  margin: 12px 6px 0;
  color: var(--accent-dark);
  font-size: 14px;
}

.list-section {
  padding-top: 26px;
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.section-title-row h2 {
  margin: 0;
  color: var(--accent-dark);
  font-size: 30px;
  font-family: "STKaiti", "KaiTi", "Kaiti SC", serif;
  font-weight: 400;
}

.section-tag {
  color: var(--ink-soft);
  font-size: 14px;
}

.message-list {
  display: grid;
  gap: 14px;
}

.message-item {
  position: relative;
  overflow: hidden;
  padding: 18px 18px 16px;
  border-radius: var(--radius-md);
}

.message-item::before {
  content: "“";
  position: absolute;
  right: 16px;
  top: 6px;
  color: rgba(107, 119, 86, 0.18);
  font-size: 72px;
  line-height: 1;
}

.message-text {
  position: relative;
  z-index: 1;
  margin: 0;
  padding-right: 28px;
  font-size: 18px;
  line-height: 1.8;
  word-break: break-word;
  white-space: pre-wrap;
}

.message-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 14px;
}

.message-chip {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(244, 240, 231, 0.9);
  border: 1px solid rgba(123, 114, 92, 0.08);
}

.empty-state {
  padding: 26px 20px;
  border-radius: var(--radius-md);
  color: var(--ink-soft);
  text-align: center;
}

.footer {
  padding: 34px 8px 10px;
  text-align: center;
  color: var(--ink-soft);
  font-size: 14px;
}

.footer-copy {
  margin-top: 10px;
  letter-spacing: 0.08em;
}

@media (min-width: 768px) {
  .page-shell {
    padding: 36px 22px 42px;
  }

  .hero {
    padding-top: 82px;
  }

  .composer-card {
    padding: 26px 24px 22px;
  }

  .message-list {
    gap: 18px;
  }
}