/* ============================================================
 * 測字 App — 水墨風格樣式（對齊 iOS CeZi：宣紙/墨/朱砂/楷體）
 * ============================================================ */
:root {
  --paper: #f3ead7;
  --paper-card: rgba(255, 252, 244, 0.88);
  --ink: #33261c;
  --ink-soft: #6b5d4f;
  --cinnabar: #a8261f;
  --gold: #b08d3e;
  --line: rgba(51, 38, 28, 0.14);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "KaiTi", "STKaiti", "Noto Serif TC", "Songti SC", "PMingLiU", serif;
  color: var(--ink);
  background: var(--paper);
  min-height: 100vh;
  line-height: 1.7;
  position: relative;
  overflow-x: hidden;
}

/* ---------- 背景：宣紙 + 墨漬 ---------- */
.bg-paper {
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(176,141,62,.07), transparent 50%),
    radial-gradient(ellipse at 85% 90%, rgba(51,38,28,.05), transparent 45%),
    var(--paper);
}
.bg-paper::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(120,100,60,.025) 3px 4px),
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.35), transparent 60%);
}
.bg-ink {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(circle at 12% 18%, rgba(51,38,28,.05) 0 90px, transparent 91px),
    radial-gradient(circle at 88% 70%, rgba(51,38,28,.04) 0 120px, transparent 121px),
    radial-gradient(circle at 70% 20%, rgba(51,38,28,.03) 0 60px, transparent 61px);
}

/* ---------- 頁頭 ---------- */
.site-head {
  display: flex; align-items: center; justify-content: center; gap: 16px;
  padding: 44px 20px 14px;
}
.seal {
  width: 60px; height: 60px; flex: none;
  background: var(--cinnabar);
  color: #f7f2e6;
  font-family: "KaiTi", "Noto Serif TC", serif;
  font-size: 34px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(168,38,31,.35);
  transform: rotate(-6deg);
}
.head-text h1 {
  font-size: 44px; font-weight: 700; letter-spacing: 6px;
  font-family: "KaiTi", "Noto Serif TC", serif;
  color: var(--ink);
}
.sub { color: var(--ink-soft); font-size: 14px; letter-spacing: 2px; margin-top: 2px; text-align: center; }

/* ---------- 主容器 ---------- */
.wrap { max-width: 780px; margin: 0 auto; padding: 8px 20px 60px; }

/* ---------- 輸入區 ---------- */
.input-panel {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px 26px;
  box-shadow: 0 6px 22px rgba(51,38,28,.08);
  backdrop-filter: blur(2px);
}
.input-label {
  display: block; text-align: center;
  font-size: 16px; letter-spacing: 3px; margin-bottom: 14px;
  color: var(--ink-soft);
}
.input-row { display: flex; gap: 10px; }
#char-input {
  flex: 1;
  font-family: "KaiTi", "Noto Serif TC", serif;
  font-size: 26px; letter-spacing: 6px; text-align: center;
  padding: 12px 14px;
  border: 1.5px solid rgba(168,38,31,.45);
  border-radius: 12px;
  background: rgba(255,255,255,.6);
  color: var(--ink);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
#char-input:focus {
  border-color: var(--cinnabar);
  box-shadow: 0 0 0 3px rgba(168,38,31,.15);
}
.btn-primary {
  font-family: "KaiTi", "Noto Serif TC", serif;
  font-size: 21px; letter-spacing: 3px;
  padding: 10px 28px;
  background: var(--cinnabar);
  color: #fff;
  border: none; border-radius: 12px;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s, background .15s;
  white-space: nowrap;
}
.btn-primary:hover { background: #8f2019; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(168,38,31,.3); }
.btn-primary:active { transform: translateY(0); }

.btn-row { display: flex; gap: 10px; margin-top: 14px; }
.btn-ghost {
  flex: 1;
  font-family: "KaiTi", "Noto Serif TC", serif;
  font-size: 15px; letter-spacing: 2px;
  padding: 9px 12px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .15s;
}
.btn-ghost:hover { border-color: var(--cinnabar); color: var(--ink); background: rgba(168,38,31,.05); }

.hint { text-align: center; color: rgba(51,38,28,.45); font-size: 12.5px; margin-top: 12px; letter-spacing: 1px; }

/* ---------- 結果 ---------- */
.hidden { display: none !important; }

#result { margin-top: 24px; display: flex; flex-direction: column; gap: 16px; }

.reading-head { text-align: center; padding: 10px 0 4px; }
.big-char {
  display: inline-block; margin: 0 14px;
  font-family: "KaiTi", "Noto Serif TC", serif;
  font-size: 84px; line-height: 1.15; font-weight: 700;
  color: var(--ink);
  text-shadow: 2px 2px 0 rgba(51,38,28,.08);
}
.big-char-sub { display: block; font-family: "KaiTi", "Noto Serif TC", serif; font-size: 13px; color: var(--ink-soft); letter-spacing: 1px; margin-top: 2px; }
.meta-line { margin-top: 12px; color: var(--ink-soft); font-size: 14px; letter-spacing: 1px; }
.copy-btn {
  font-family: "KaiTi", "Noto Serif TC", serif;
  font-size: 13px; letter-spacing: 1px;
  margin-left: 10px; padding: 3px 14px;
  background: transparent;
  border: 1px solid var(--cinnabar);
  color: var(--cinnabar);
  border-radius: 999px;
  cursor: pointer;
  transition: all .15s;
  vertical-align: middle;
}
.copy-btn:hover { background: var(--cinnabar); color: #fff; }

.card {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px 24px;
  box-shadow: 0 4px 14px rgba(51,38,28,.06);
}
.card-title {
  font-size: 15px; font-weight: 700; letter-spacing: 4px;
  color: var(--ink);
  padding-bottom: 10px; margin-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

/* 關於 */
.about { margin-top: 24px; }
.about p { font-size: 14px; color: var(--ink); margin-bottom: 10px; }
.about-sub { font-weight: 700; letter-spacing: 2px; color: var(--ink-soft); }
.about-list { margin: 0 0 10px 1.3em; font-size: 14px; color: var(--ink); }
.about-list li { margin-bottom: 4px; }
.about-note { font-size: 12.5px; color: rgba(51,38,28,.5); }

/* 拆字 */
.char-row {
  display: flex; gap: 16px; padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}
.char-row:last-child { border-bottom: none; }
.char-cell {
  flex: none; width: 60px; text-align: center;
  font-size: 44px; font-family: "KaiTi", "Noto Serif TC", serif; font-weight: 700;
  line-height: 1.2;
}
.char-cell-sub { display: block; font-family: "KaiTi", "Noto Serif TC", serif; font-size: 11.5px; color: var(--ink-soft); }
.char-body { flex: 1; min-width: 0; }
.parts-line { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.part-chip {
  font-size: 22px; padding: 2px 10px;
  background: rgba(176,141,62,.13);
  border: 1px solid rgba(176,141,62,.35);
  border-radius: 8px;
  font-family: "KaiTi", "Noto Serif TC", serif;
}
.elem-inline { display: inline-flex; align-items: center; gap: 4px; margin-left: 4px; }
.split-text { font-size: 14.5px; color: var(--ink); }
.rad-line { display: inline-block; margin-top: 6px; font-size: 13px; color: var(--ink-soft); }
.gloss { font-size: 12.5px; color: rgba(51,38,28,.55); margin-top: 6px; font-style: italic; }

.elem-badge {
  display: inline-block; min-width: 22px;
  color: #fff; font-size: 12px; font-weight: 700;
  padding: 1px 7px; border-radius: 999px;
  text-align: center; line-height: 1.5;
  letter-spacing: 1px;
}

/* 數理 */
.num-row {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 0; border-bottom: 1px dashed var(--line);
  flex-wrap: wrap;
}
.num-row:last-of-type { border-bottom: none; }
.num-char { font-size: 26px; font-family: "KaiTi", "Noto Serif TC", serif; font-weight: 700; width: 34px; text-align: center; }
.num-val { font-size: 14px; color: var(--ink-soft); }
.num-word { font-size: 15px; }
.num-grade, .hex-grade, .score-grade {
  font-size: 13px; font-weight: 700; padding: 1px 10px; border-radius: 999px;
  letter-spacing: 1px;
}
.g-ji { background: rgba(168,38,31,.1); color: var(--cinnabar); border: 1px solid rgba(168,38,31,.3); }
.g-ping { background: rgba(176,141,62,.14); color: #8a6d1f; border: 1px solid rgba(176,141,62,.35); }
.g-xiong { background: rgba(74,84,110,.12); color: #4a546e; border: 1px solid rgba(74,84,110,.3); }

/* 三才 / 五格 */
.grid-row { display: flex; gap: 8px; margin: 10px 0 6px; }
.grid-cell {
  flex: 1; text-align: center;
  border: 1px solid var(--line); border-radius: 10px;
  padding: 8px 4px; background: rgba(243,234,215,.6);
}
.grid-name { font-size: 12px; color: var(--ink-soft); letter-spacing: 2px; }
.grid-num { font-size: 20px; font-weight: 700; }
.grid-elem { margin-top: 2px; }
.san-line { text-align: center; font-size: 13.5px; color: var(--ink-soft); margin-top: 6px; }

/* 卦象 */
.hex-wrap { display: flex; align-items: center; justify-content: center; gap: 26px; padding: 6px 0; }
.hex-tri { text-align: center; }
.tri-name { font-size: 12.5px; color: var(--ink-soft); margin-top: 2px; letter-spacing: 1px; }
.trigram { width: 58px; height: 44px; fill: var(--ink); }
.hex-mid { text-align: center; }
.hex-name { font-size: 26px; font-weight: 900; letter-spacing: 4px; font-family: "KaiTi", "Noto Serif TC", serif; }
.hex-grade { display: inline-block; margin: 4px 0; }
.hex-text { font-size: 14.5px; color: var(--ink-soft); }

/* 籤詩 */
.poem-text {
  font-family: "KaiTi", "Noto Serif TC", serif;
  font-size: 23px; letter-spacing: 2px; line-height: 1.9;
  text-align: center; color: var(--cinnabar);
}

/* 五行 */
.wuxing-line { font-size: 14.5px; color: var(--ink); }
.wuxing-line .elem-badge { margin-right: 8px; }

/* 總評 */
.score-row { display: flex; gap: 22px; align-items: center; }
.score-ring {
  --p: 50;
  flex: none; width: 108px; height: 108px;
  border-radius: 50%;
  background: conic-gradient(var(--cinnabar) calc(var(--p) * 1%), rgba(168,38,31,.12) 0);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.score-ring::before {
  content: ""; position: absolute; inset: 9px;
  background: var(--paper); border-radius: 50%;
}
.score-inner { position: relative; text-align: center; z-index: 1; }
.score-num { font-size: 34px; font-weight: 900; color: var(--ink); line-height: 1; }
.score-label { font-size: 12px; color: var(--ink-soft); display: block; margin-top: 2px; }
.score-right { flex: 1; min-width: 0; }
.score-grade { display: inline-block; font-size: 16px; margin-bottom: 6px; }
.summary-text { font-size: 14.5px; color: var(--ink); }

/* 錯誤 */
.error-box {
  background: rgba(168,38,31,.07);
  border: 1px solid rgba(168,38,31,.3);
  color: #8f2019;
  border-radius: 12px; padding: 18px; text-align: center;
  font-size: 16px; letter-spacing: 1px;
}

/* ---------- 歷史 ---------- */
.history { margin-top: 30px; }
.history h2 { font-size: 16px; letter-spacing: 4px; color: var(--ink-soft); margin-bottom: 12px; text-align: center; }
#history-list { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.hist-item {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: "KaiTi", "Noto Serif TC", serif;
  background: var(--paper-card);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 5px 14px 5px 10px;
  cursor: pointer; color: var(--ink);
  transition: all .15s;
  font-size: 14px;
}
.hist-item:hover { border-color: var(--cinnabar); transform: translateY(-1px); box-shadow: 0 3px 10px rgba(51,38,28,.1); }
.hist-char { font-size: 18px; font-family: "KaiTi", "Noto Serif TC", serif; font-weight: 700; }
.hist-grade { font-size: 11.5px; font-weight: 700; padding: 0 8px; border-radius: 999px; }
.hist-score { color: var(--ink-soft); font-size: 12.5px; }

/* ---------- 廣告位 ---------- */
.ad-slot {
  max-width: 780px;
  margin: 24px auto 0;
  padding: 0 20px;
  text-align: center;
}
.ad-label {
  display: block;
  font-size: 11px;
  letter-spacing: 2px;
  color: rgba(51,38,28,.4);
  margin-bottom: 6px;
}
.ad-slot ins {
  max-width: 100%;
}

/* ---------- 頁尾 ---------- */
.site-foot {
  text-align: center; color: rgba(51,38,28,.42); font-size: 12.5px;
  margin-top: 44px; letter-spacing: 1px; line-height: 2;
}

/* ---------- 響應式 ---------- */
@media (max-width: 560px) {
  .site-head { padding-top: 28px; }
  .head-text h1 { font-size: 34px; letter-spacing: 4px; }
  .seal { width: 52px; height: 52px; font-size: 28px; }
  .input-panel { padding: 20px 16px; }
  #char-input { font-size: 22px; }
  .btn-primary { padding: 10px 18px; font-size: 18px; }
  .big-char { font-size: 62px; margin: 0 8px; }
  .char-row { flex-direction: column; gap: 6px; }
  .char-cell { width: auto; font-size: 38px; }
  .hex-wrap { gap: 12px; }
  .trigram { width: 44px; height: 34px; }
  .hex-name { font-size: 21px; }
  .poem-text { font-size: 19px; }
  .score-row { flex-direction: column; text-align: center; }
  .score-right { text-align: center; }
}