* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Songti SC", "Noto Serif CJK SC", "Microsoft YaHei", serif;
  background: #f5f1e8;
  color: #2b2118;
}

.page {
  width: min(1320px, 96vw);
  margin: 28px auto 60px;
}

.input-card, .chart-card {
  background: rgba(255,255,255,.78);
  border: 1px solid #d8cbb8;
  border-radius: 18px;
  box-shadow: 0 14px 34px rgba(80,54,24,.08);
}

.input-card {
  padding: 24px 28px;
  margin-bottom: 22px;
}

.input-card h1 {
  margin: 0 0 18px;
  font-size: 28px;
  letter-spacing: .08em;
}

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

.form label { font-size: 16px; }

.form input {
  height: 42px;
  width: 180px;
  border: 1px solid #bda987;
  border-radius: 10px;
  padding: 0 12px;
  font-size: 18px;
  background: #fffdf8;
}

.form button {
  height: 42px;
  border: none;
  border-radius: 10px;
  padding: 0 22px;
  font-size: 16px;
  cursor: pointer;
  color: #fff;
  background: #6f4d2a;
}

.form button:hover { background: #563a1f; }

.error {
  margin-top: 14px;
  color: #b3261e;
}

.chart-card {
  padding: 26px 28px 32px;
}

.chart-card h2 {
  text-align: center;
  margin: 0;
  font-size: clamp(30px, 4vw, 46px);
  letter-spacing: .1em;
  font-weight: 600;
}

.suan-row {
  margin-top: 16px;
  display: flex;
  justify-content: center;
  gap: clamp(22px, 6vw, 86px);
  font-size: clamp(20px, 2.3vw, 30px);
}

.meta-row {
  margin: 14px auto 0;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 24px;
  font-size: 15px;
  color: #6b5946;
}

/*
  动态太乙盘：
  1. 仍是 CSS Grid 真实格子，内容会自动撑高；
  2. 不使用固定图片，也不绝对定位；
  3. 手机端不再横向滑动，而是保持 7 列同等比例，整体随屏幕缩放；
  4. 为了手机完整显示，手机端会缩小格内字号和边距，但保持盘式比例不乱。
*/
.plate-grid {
  margin: 34px auto 8px;
  width: 100%;
  display: grid;
  grid-template-columns:
    minmax(0, 1fr)
    minmax(0, 1fr)
    minmax(0, 1fr)
    minmax(0, 1.08fr)
    minmax(0, 1fr)
    minmax(0, 1fr)
    minmax(0, 1fr);
  grid-template-rows: auto auto auto;
  border-top: 2px solid #222;
  border-bottom: 2px solid #222;
  background: #fffdf7;
  overflow: visible;
}

.js-box,
.empty-cell {
  min-height: clamp(84px, 10vw, 132px);
  position: relative;
  border-right: 2px solid #222;
  border-bottom: 2px solid #222;
}

.plate-grid > :nth-child(7),
.plate-grid > :nth-child(14),
.plate-grid > :nth-child(21) {
  border-right: none;
}

.plate-grid > :nth-child(n+15) {
  border-bottom: none;
}

.axis-y {
  border-left: 3px solid #222;
  border-right: 3px solid #222;
}

.js-box {
  padding: clamp(24px, 2.8vw, 36px) clamp(4px, 0.8vw, 10px) clamp(8px, 1vw, 12px);
  background: #fffdf7;
}

.empty-cell {
  background: #fffdf7;
}

.js-name {
  position: absolute;
  top: clamp(5px, .8vw, 9px);
  left: 50%;
  transform: translateX(-50%);
  font-size: clamp(13px, 1.45vw, 22px);
  line-height: 1;
  color: #2b2118;
  opacity: .82;
}

.js-symbols {
  min-height: 34px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: clamp(4px, .65vw, 7px);
}

.js-symbols:empty::after {
  content: "";
  display: block;
  min-height: 20px;
}

.js-symbols span {
  display: block;
  width: 100%;
  border: 1px solid #bfa27a;
  background: #fff7e7;
  border-radius: clamp(6px, .8vw, 10px);
  padding: clamp(3px, .55vw, 6px) clamp(3px, .7vw, 8px);
  text-align: center;
  font-size: clamp(11px, 1.38vw, 21px);
  line-height: 1.12;
  color: #2b2118;
  white-space: nowrap;
  overflow-wrap: normal;
}

.js-symbols span:first-child {
  border-color: #9c7c51;
}

.detail-box {
  margin-top: 18px;
  border: 1px solid #dccfbd;
  border-radius: 12px;
  padding: 12px 16px;
  background: #fffaf1;
}

.detail-box summary {
  cursor: pointer;
  font-size: 16px;
}

.detail-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 8px 18px;
  font-size: 15px;
}

.door-list {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  color: #5e4b37;
}

.door-list span {
  background: #f2eadb;
  border-radius: 8px;
  padding: 5px 9px;
}

@media (max-width: 900px) {
  .page {
    width: 100vw;
    margin: 0 auto 40px;
  }

  .input-card,
  .chart-card {
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  .chart-card {
    padding: 20px 8px 24px;
    overflow-x: hidden;
  }

  .chart-card h2 {
    font-size: clamp(28px, 8vw, 38px);
  }

  .suan-row {
    gap: 18px;
    font-size: clamp(18px, 5vw, 24px);
  }

  .meta-row {
    font-size: 13px;
    gap: 8px 14px;
  }

  .plate-grid {
    margin-top: 24px;
    width: 100%;
    grid-template-columns:
      minmax(0, 1fr)
      minmax(0, 1fr)
      minmax(0, 1fr)
      minmax(0, 1.08fr)
      minmax(0, 1fr)
      minmax(0, 1fr)
      minmax(0, 1fr);
  }

  .js-box,
  .empty-cell {
    min-height: clamp(82px, 19vw, 120px);
    border-right-width: 1.5px;
    border-bottom-width: 1.5px;
  }

  .axis-y {
    border-left-width: 2.5px;
    border-right-width: 2.5px;
  }

  .js-box {
    padding-top: 22px;
    padding-left: 3px;
    padding-right: 3px;
  }

  .js-symbols {
    gap: 4px;
  }

  .js-symbols span {
    font-size: clamp(10px, 3vw, 14px);
    padding: 3px 2px;
    border-radius: 6px;
  }

  .js-name {
    font-size: clamp(12px, 3.3vw, 16px);
  }
}

@media (max-width: 420px) {
  .chart-card {
    padding-left: 5px;
    padding-right: 5px;
  }

  .plate-grid {
    border-top-width: 1.5px;
    border-bottom-width: 1.5px;
  }

  .js-box,
  .empty-cell {
    min-height: clamp(78px, 21vw, 104px);
  }

  .js-symbols span {
    font-size: clamp(9px, 2.75vw, 12px);
    line-height: 1.08;
  }

  .detail-box {
    margin-left: 4px;
    margin-right: 4px;
  }
}


.month-panel {
  margin-top: 22px;
  border-top: 1px solid #dccfbd;
  padding-top: 18px;
}

.month-panel h3 {
  margin: 0 0 12px;
  text-align: center;
  font-size: 24px;
  letter-spacing: .08em;
}

.month-form {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.month-form label {
  font-size: 16px;
}

.month-form select {
  height: 40px;
  min-width: 110px;
  border: 1px solid #bda987;
  border-radius: 10px;
  padding: 0 10px;
  font-size: 17px;
  background: #fffdf8;
}

.month-form button {
  height: 40px;
  border: none;
  border-radius: 10px;
  padding: 0 20px;
  font-size: 16px;
  cursor: pointer;
  color: #fff;
  background: #6f4d2a;
}

.month-form button:hover {
  background: #563a1f;
}

.month-chart-card {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px dashed #c9b99f;
}

.month-chart-card h2 {
  font-size: clamp(26px, 3.4vw, 40px);
}

.month-suan {
  font-size: clamp(18px, 2vw, 26px);
}

.month-plate {
  margin-top: 26px;
}


.month-title-em {
  color: #7a4f24;
  font-weight: 700;
}

.month-form button:disabled {
  opacity: .65;
  cursor: wait;
}

.js-symbols span {
  word-break: keep-all;
}

@media (max-width: 900px) {
  .js-symbols span {
    font-size: clamp(8px, 2.25vw, 13px);
    letter-spacing: -0.03em;
    white-space: nowrap;
  }
}

@media (max-width: 420px) {
  .js-symbols span {
    font-size: clamp(7px, 2.1vw, 11px);
    padding-left: 1px;
    padding-right: 1px;
    letter-spacing: -0.06em;
    white-space: nowrap;
  }
}