/* ============ 小六壬 · 朱砂红东方古典 ============ */
* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

:root {
  --paper: #f5ead6;        /* 宣纸米黄 */
  --paper-deep: #ecdbc0;
  --ink: #3a2a1e;          /* 墨褐 */
  --ink-dim: #7a6a55;
  --cinnabar: #c0392b;     /* 朱砂红 */
  --cinnabar-deep: #9b2c1e;
  --gold-line: #b08d4f;
}

html, body {
  font-family: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'STKaiti', 'KaiTi', serif;
  background: var(--paper);
  color: var(--ink);
  min-height: 100vh;
  overflow-x: hidden;
}

/* 宣纸纹理 */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0.55 0 0 0 0 0.45 0 0 0 0 0.35 0 0 0 0.06 0'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.5;
}

a { text-decoration: none; color: inherit; }

.container {
  position: relative; z-index: 1;
  max-width: 520px; margin: 0 auto; padding: 20px 20px 48px;
}

/* 顶部返回 */
.top-bar { padding: 6px 0 0; border-bottom: 1px solid rgba(176, 141, 79, 0.4); }
.top-bar .back-link {
  display: inline-block; font-size: 13px; color: var(--ink-dim);
  letter-spacing: 1px; padding: 6px 10px;
}
.top-bar .back-link:active { color: var(--cinnabar); }

/* 头部 */
.hero { text-align: center; padding: 26px 0 20px; }
.seal-mark {
  width: 64px; height: 64px; margin: 0 auto 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; letter-spacing: 2px; color: #f5ead6;
  background: var(--cinnabar);
  border-radius: 6px;
  transform: rotate(-4deg);
  box-shadow: 0 4px 12px rgba(192, 57, 43, 0.35);
  font-family: 'STKaiti', 'KaiTi', serif;
}
.hero h1 {
  font-size: 34px; letter-spacing: 10px; color: var(--cinnabar);
  font-weight: 700;
}
.hero .sub { font-size: 13px; color: var(--ink-dim); margin-top: 6px; letter-spacing: 3px; }
.hero .intro {
  font-size: 13px; color: var(--ink); line-height: 1.9; margin-top: 14px;
  background: rgba(255, 255, 255, 0.35);
  border: 1px solid rgba(176, 141, 79, 0.4);
  border-radius: 8px; padding: 10px 14px;
}
.disclaimer {
  display: inline-block; margin-top: 12px; padding: 4px 12px;
  font-size: 12px; color: var(--cinnabar);
  border: 1px solid rgba(192, 57, 43, 0.5); border-radius: 20px;
}

.section-title {
  text-align: center; color: var(--cinnabar); font-size: 15px;
  letter-spacing: 6px; margin: 22px 0 16px;
}

/* 起卦区 */
.cast-box {
  background: rgba(255, 255, 255, 0.4);
  border: 1px solid rgba(176, 141, 79, 0.45);
  border-radius: 10px;
  padding: 18px 16px 20px;
}
.nums-row { display: flex; justify-content: center; gap: 18px; }
.num-box { text-align: center; }
.num-box label {
  display: block; font-size: 13px; color: var(--ink-dim);
  letter-spacing: 4px; margin-bottom: 8px;
}
.num-box input {
  width: 64px; height: 64px; text-align: center;
  font-size: 26px; font-family: inherit; color: var(--cinnabar);
  background: #fdf8ee;
  border: 2px solid var(--gold-line); border-radius: 8px;
  outline: none; transition: border-color 0.2s;
}
.num-box input:focus { border-color: var(--cinnabar); }

.btn-cast {
  display: block; margin: 20px auto 0;
  padding: 12px 46px; font-size: 18px; letter-spacing: 8px;
  font-family: 'STKaiti', 'KaiTi', serif;
  color: #f5ead6; background: var(--cinnabar);
  border-radius: 6px; cursor: pointer;
  box-shadow: 0 4px 10px rgba(192, 57, 43, 0.3);
  transition: transform 0.15s, background 0.2s;
}
.btn-cast:active { transform: scale(0.95); background: var(--cinnabar-deep); }
.cast-tip { text-align: center; font-size: 11px; color: var(--ink-dim); margin-top: 10px; }

/* 结果区 */
.screen-result { animation: fadeUp 0.5s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

.result-seal {
  text-align: center; padding: 10px 0 4px;
}
.seal-name {
  display: inline-block; padding: 10px 30px;
  font-size: 40px; letter-spacing: 8px; font-weight: 700;
  color: var(--cinnabar);
  border: 3px solid var(--cinnabar); border-radius: 8px;
  transform: rotate(-3deg);
  font-family: 'STKaiti', 'KaiTi', serif;
  box-shadow: inset 0 0 0 3px #fdf8ee, inset 0 0 0 4px var(--cinnabar);
}
.seal-luck {
  display: inline-block; margin-top: 10px; padding: 3px 18px;
  font-size: 15px; letter-spacing: 4px; color: #f5ead6;
  background: var(--cinnabar); border-radius: 4px;
}

.meta-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px;
  margin-top: 18px;
}
.meta-cell {
  text-align: center; padding: 10px 4px;
  background: rgba(255, 255, 255, 0.4);
  border: 1px solid rgba(176, 141, 79, 0.4); border-radius: 8px;
}
.meta-k { display: block; font-size: 11px; color: var(--ink-dim); letter-spacing: 2px; }
.meta-v { display: block; font-size: 15px; color: var(--ink); margin-top: 4px; letter-spacing: 1px; }

.reading-card {
  margin-top: 16px; padding: 16px 16px 18px;
  background: rgba(255, 255, 255, 0.45);
  border-left: 4px solid var(--cinnabar);
  border-radius: 0 8px 8px 0;
}
.reading-title {
  font-size: 14px; letter-spacing: 4px; color: var(--cinnabar);
  margin-bottom: 8px;
}
.reading-text { font-size: 14.5px; line-height: 2.1; color: var(--ink); }

.res-actions { text-align: center; margin-top: 20px; }
.btn-again {
  padding: 11px 40px; font-size: 15px; letter-spacing: 4px;
  font-family: 'STKaiti', 'KaiTi', serif;
  color: var(--cinnabar); background: transparent;
  border: 1.5px solid var(--cinnabar); border-radius: 6px;
  cursor: pointer; transition: transform 0.15s, background 0.2s;
}
.btn-again:active { transform: scale(0.95); background: rgba(192, 57, 43, 0.1); }

.footer {
  text-align: center; font-size: 11px; color: var(--ink-dim);
  line-height: 1.8; margin-top: 30px; padding-top: 16px;
  border-top: 1px solid rgba(176, 141, 79, 0.45);
}