/* =========================================================
   echo.css  —  信则 · Echo
   ========================================================= */

.main.echo-main { max-width: 720px; }

.echo-hero {
  text-align: center;
  padding: 22px 0 18px;
  border-bottom: 1px solid var(--line-1, #D8CFBE);
  margin-bottom: 24px;
}
.echo-title {
  font-family: var(--f-serif-cn, "Songti SC", "STSong", serif);
  font-size: 28px; font-weight: 500;
  letter-spacing: 0.32em;
  color: var(--ink-1, #2C2620);
  margin: 0 0 10px;
}
.echo-sub {
  font-family: var(--f-serif-cn, serif);
  font-size: 13px; line-height: 1.95;
  color: var(--ink-3, #6E665B);
  margin: 0;
}

/* 今日一信 (大卡) */
.echo-card {
  position: relative;
  padding: 22px 26px 18px;
  margin: 0 0 18px;
  background: linear-gradient(180deg, rgba(250,246,236,.85) 0%, rgba(250,246,236,.5) 100%);
  border: 1px solid var(--line-1, #D8CFBE);
  border-radius: 4px;
  box-shadow: 0 2px 12px rgba(94, 80, 60, 0.04);
}
.echo-card.daily { border-color: rgba(168, 32, 26, 0.18); }
.echo-card-tip {
  font-family: var(--f-serif-cn, serif);
  font-size: 11px; letter-spacing: 0.24em;
  color: var(--ink-4, #8A8273);
  margin-bottom: 8px;
}
.echo-card-body {
  font-family: var(--f-serif-cn, "Songti SC", "STSong", serif);
  font-size: 17px; line-height: 2.05;
  color: var(--ink-1, #2C2620);
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 38px;
}
.echo-card-foot {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-1, #D8CFBE);
}
.echo-card-foot > span {
  font-family: var(--f-serif-cn, serif);
  font-size: 11px; color: var(--ink-4, #8A8273);
  letter-spacing: 0.12em;
}
.echo-stamp { width: 28px; height: 28px; opacity: 0.5; }

/* 抽信 */
.echo-pool-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 4px 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line-1, #D8CFBE);
}
.echo-draw {
  font-family: var(--f-serif-cn, serif);
  font-size: 13.5px; letter-spacing: 0.18em;
  padding: 9px 22px;
  background: transparent;
  color: var(--vermilion, #A8201A);
  border: 1px solid var(--vermilion, #A8201A);
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s;
}
.echo-draw:hover { background: var(--vermilion, #A8201A); color: #fff; }
.echo-draw:disabled { opacity: 0.4; cursor: not-allowed; }
.echo-pool-hint {
  font-family: var(--f-serif-cn, serif);
  font-size: 11px; color: var(--ink-4, #8A8273);
  letter-spacing: 0.10em;
}

/* 区段 */
.echo-section { margin: 0 0 26px; }
.echo-section-head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin: 0 0 10px;
}
.echo-section-title {
  font-family: var(--f-serif-cn, serif);
  font-size: 13.5px; font-weight: 500;
  letter-spacing: 0.20em;
  color: var(--ink-2, #4A4136);
  margin: 0;
}
.echo-section-meta {
  font-family: var(--f-serif-cn, serif);
  font-size: 11px; color: var(--ink-4, #8A8273);
  letter-spacing: 0.10em;
}

/* 收件箱 */
.echo-inbox { display: flex; flex-direction: column; gap: 10px; }
.echo-empty {
  font-family: var(--f-serif-cn, serif);
  font-size: 13px; line-height: 2.1;
  color: var(--ink-4, #8A8273);
  text-align: center;
  padding: 26px 0;
  border: 1px dashed var(--line-1, #D8CFBE);
  border-radius: 4px;
}
.echo-item {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 14px 16px;
  background: rgba(255, 252, 245, 0.6);
  border: 1px solid var(--line-1, #D8CFBE);
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.echo-item:hover { background: rgba(255, 252, 245, 0.9); }
.echo-item.unread { border-color: rgba(168, 32, 26, 0.3); background: rgba(168, 32, 26, 0.03); }
.echo-item .av {
  flex: 0 0 28px; width: 28px; height: 28px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(168, 137, 92, 0.18);
  color: var(--ink-2, #4A4136);
  font-family: var(--f-serif-cn, serif);
  font-size: 13px;
}
.echo-item .av.tree { background: linear-gradient(135deg, #D7B5C7 0%, #A8895C 100%); color: #fff; }
.echo-item .av.user { background: rgba(168, 32, 26, 0.10); color: var(--vermilion, #A8201A); }
.echo-item .info { flex: 1; min-width: 0; }
.echo-item .who {
  font-family: var(--f-serif-cn, serif);
  font-size: 11px; color: var(--ink-4, #8A8273);
  letter-spacing: 0.14em;
  margin-bottom: 3px;
  display: flex; gap: 8px; align-items: center;
}
.echo-item .who .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--vermilion, #A8201A);
}
.echo-item .preview {
  font-family: var(--f-serif-cn, serif);
  font-size: 13.5px; line-height: 1.8;
  color: var(--ink-2, #4A4136);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 写信进池 */
.echo-write {
  border: 1px solid var(--line-1, #D8CFBE);
  border-radius: 4px;
  background: rgba(255, 252, 245, 0.5);
  padding: 12px 14px;
}
#echo-pool-text {
  width: 100%;
  min-height: 90px;
  max-height: 220px;
  resize: vertical;
  padding: 8px 6px;
  font-family: var(--f-serif-cn, serif);
  font-size: 14.5px; line-height: 1.95;
  color: var(--ink-1, #2C2620);
  background: transparent;
  border: none;
  outline: none;
}
.echo-write-row {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--line-1, #D8CFBE);
}
.echo-write-hint {
  font-family: var(--f-serif-cn, serif);
  font-size: 11px; color: var(--ink-4, #8A8273);
  letter-spacing: 0.10em;
}
.echo-write-hint.cool { color: var(--vermilion, #A8201A); }
.echo-send {
  font-family: var(--f-serif-cn, serif);
  font-size: 13.5px; letter-spacing: 0.16em;
  padding: 7px 18px;
  background: var(--vermilion, #A8201A);
  color: #fff;
  border: 1px solid var(--vermilion, #A8201A);
  border-radius: 3px;
  cursor: pointer;
  transition: opacity 0.2s;
}
.echo-send:hover { opacity: 0.88; }
.echo-send:disabled {
  background: transparent; color: var(--ink-4, #8A8273);
  border-color: var(--line-1, #D8CFBE); cursor: not-allowed;
}

/* 信打开后的"信纸"模态 */
.echo-modal {
  position: fixed; inset: 0;
  display: none;
  align-items: center; justify-content: center;
  background: rgba(34, 30, 26, 0.55);
  z-index: 1000;
  padding: 20px;
}
.echo-modal.on { display: flex; }
.echo-paper {
  max-width: 520px; width: 100%;
  background: linear-gradient(180deg, #FAF6EC 0%, #F2EADC 100%);
  border: 1px solid var(--line-1, #D8CFBE);
  border-radius: 4px;
  padding: 36px 40px 30px;
  box-shadow: 0 8px 36px rgba(20, 16, 10, 0.18);
  position: relative;
  animation: echo-paper-in 0.4s ease;
}
@keyframes echo-paper-in {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.echo-paper-stamp {
  position: absolute; top: 20px; right: 24px;
  width: 36px; height: 36px; opacity: 0.5;
}
.echo-paper-from {
  font-family: var(--f-serif-cn, serif);
  font-size: 12px; color: var(--ink-4, #8A8273);
  letter-spacing: 0.18em;
  margin-bottom: 18px;
}
.echo-paper-body {
  font-family: var(--f-serif-cn, "Songti SC", "STSong", serif);
  font-size: 16.5px; line-height: 2.15;
  color: var(--ink-1, #2C2620);
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 120px;
  padding: 14px 0;
  border-top: 1px solid var(--line-1, #D8CFBE);
  border-bottom: 1px solid var(--line-1, #D8CFBE);
}
.echo-paper-foot {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 14px;
}
.echo-paper-foot .when {
  font-family: var(--f-serif-cn, serif);
  font-size: 11px; color: var(--ink-4, #8A8273);
  letter-spacing: 0.12em;
}
.echo-paper-close {
  font-family: var(--f-serif-cn, serif);
  font-size: 12px; letter-spacing: 0.12em;
  background: transparent;
  border: 1px solid var(--line-1, #D8CFBE);
  color: var(--ink-3, #6E665B);
  padding: 5px 14px;
  border-radius: 3px;
  cursor: pointer;
}
.echo-paper-close:hover { border-color: var(--vermilion, #A8201A); color: var(--vermilion, #A8201A); }

/* 右 aside 规约 */
.echo-rules {
  font-family: var(--f-serif-cn, serif);
  font-size: 12.5px; line-height: 2.15;
  color: var(--ink-3, #6E665B);
  padding: 4px 2px;
}
.echo-rules p { margin: 0; }

.echo-unread {
  font-family: var(--f-serif-cn, serif);
  font-size: 14px; line-height: 1.95;
  color: var(--ink-2, #4A4136);
  padding: 6px 2px;
}