/* 大衍 · 六爻演卦 —— 深色国风 */
:root {
  --bg: #0e0d0b;
  --bg2: #17150f;
  --panel: #1d1a13;
  --panel2: #242017;
  --line: #3a3322;
  --gold: #c9a55c;
  --gold-dim: #8a7343;
  --text: #e8dfc8;
  --dim: #9a8f76;
  --red: #b03a2e;
  --good: #7fae6a;
  --bad: #c25b4e;
  --mid: #c9a55c;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Songti SC", "STSong", "SimSun", "Noto Serif SC", serif;
  -webkit-font-smoothing: antialiased;
}
#app { max-width: 520px; margin: 0 auto; min-height: 100vh; position: relative; padding-bottom: 72px; }
.hidden { display: none !important; }
.dim { color: var(--dim); }
.good { color: var(--good); }
.bad { color: var(--bad); }
.mid { color: var(--mid); }

/* 背景：暗纹 */
body::before {
  content: "☰ ☱ ☲ ☳ ☴ ☵ ☶ ☷";
  position: fixed; top: 6vh; left: 50%; transform: translateX(-50%);
  font-size: 20px; letter-spacing: 28px; color: rgba(201,165,92,.05);
  white-space: nowrap; pointer-events: none; z-index: 0;
}

/* 页面切换 */
.page { display: none; min-height: calc(100vh - 72px); position: relative; z-index: 1; }
.page.active { display: block; animation: fadeIn .35s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.page-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 18px; border-bottom: 1px solid var(--panel2);
  position: sticky; top: 0; background: rgba(14,13,11,.92); backdrop-filter: blur(6px); z-index: 10;
}
.page-header h2 { font-size: 17px; font-weight: normal; letter-spacing: 4px; color: var(--gold); }
.brand { display: flex; align-items: center; gap: 8px; font-size: 16px; letter-spacing: 2px; }
.taiji { color: var(--gold); font-size: 20px; }
.header-clock { font-size: 11px; color: var(--dim); letter-spacing: 1px; }
.btn-back { background: none; border: none; color: var(--gold); font-size: 14px; cursor: pointer; padding: 4px 8px; font-family: inherit; }

.page-body { padding: 18px 18px 30px; }

/* 主页 */
.mode-switch { display: flex; justify-content: center; gap: 12px; margin-bottom: 10px; }
.mode-pill {
  background: none; border: 1px solid var(--gold-dim); color: var(--dim);
  padding: 7px 26px; border-radius: 999px; font-size: 14px; letter-spacing: 4px; cursor: pointer; font-family: inherit;
  transition: all .25s;
}
.mode-pill.active { background: var(--gold); color: #14120c; border-color: var(--gold); font-weight: bold; }
.mode-desc { text-align: center; font-size: 12px; color: var(--dim); margin-bottom: 16px; letter-spacing: 1px; }

textarea {
  width: 100%; background: var(--panel); border: 1px solid var(--panel2); border-radius: 10px;
  color: var(--text); font-family: inherit; font-size: 15px; padding: 12px 14px; resize: vertical; line-height: 1.7;
}
textarea:focus { outline: none; border-color: var(--gold-dim); }

.method-tabs { display: flex; gap: 8px; margin: 16px 0 12px; }
.method-tab {
  flex: 1; background: var(--panel); border: 1px solid var(--panel2); color: var(--dim);
  padding: 9px 0; border-radius: 8px; cursor: pointer; font-size: 13px; font-family: inherit; transition: all .2s;
}
.method-tab.active { color: var(--gold); border-color: var(--gold-dim); background: var(--panel2); }
.method-panel { text-align: center; }
.method-note { font-size: 12px; color: var(--dim); line-height: 1.8; margin-bottom: 14px; }

/* 摇钱 */
.coin-stage {
  display: flex; justify-content: center; gap: 22px; padding: 26px 0; min-height: 110px; align-items: center;
}
.coin-slot {
  width: 64px; height: 64px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; color: var(--gold);
  background: radial-gradient(circle at 35% 30%, #4a3d22, #2a2314 70%);
  border: 2px solid var(--gold-dim);
  box-shadow: 0 4px 14px rgba(0,0,0,.5), inset 0 0 8px rgba(201,165,92,.25);
}
.coin-slot.front { border-color: var(--gold); }
.coin-slot.back { color: var(--dim); border-color: #5a4d32; }
.coin-slot.spinning { animation: spinCoin .5s linear infinite; opacity: .8; }
@keyframes spinCoin {
  0% { transform: rotateY(0) scale(1); } 50% { transform: rotateY(180deg) scale(.92); } 100% { transform: rotateY(360deg) scale(1); }
}
.toss-progress { font-size: 13px; color: var(--dim); margin-bottom: 14px; letter-spacing: 2px; }
.auto-toss { display: block; margin-top: 12px; font-size: 12px; color: var(--dim); cursor: pointer; }
.auto-toss input { accent-color: var(--gold); }
.num-row { display: flex; gap: 12px; margin-bottom: 14px; }
.num-row input {
  flex: 1; background: var(--panel); border: 1px solid var(--panel2); border-radius: 10px;
  color: var(--text); font-size: 18px; text-align: center; padding: 12px; font-family: inherit;
}
.num-row input:focus { outline: none; border-color: var(--gold-dim); }

/* 蓍草法 */
.yarrow-stage { padding: 10px 0 18px; }
.yarrow-stalk {
  font-size: 52px; color: var(--gold); letter-spacing: 2px;
  text-shadow: 0 0 18px rgba(201,165,92,.35); line-height: 1.2;
}
.yarrow-stalk::after { content: " 策"; font-size: 14px; color: var(--dim); }
.yarrow-step { font-size: 13px; color: var(--text); margin-top: 8px; letter-spacing: 1px; }
.yarrow-detail { font-size: 12px; color: var(--dim); margin-top: 6px; line-height: 1.8; }
.yarrow-yaos { margin-top: 12px; display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; min-height: 28px; }
.yao-chip {
  font-size: 12px; color: var(--dim); border: 1px solid var(--panel2);
  border-radius: 999px; padding: 3px 10px;
}
.yao-chip.moving { color: var(--gold); border-color: var(--gold-dim); background: rgba(201,165,92,.1); }

/* 国学页 */
.guoxue-card { background: var(--panel); border: 1px solid var(--gold-dim); border-radius: 12px; padding: 22px 18px; text-align: center; }
.guoxue-src { color: var(--gold); font-size: 13px; letter-spacing: 2px; margin-bottom: 14px; }
.guoxue-txt { font-size: 19px; line-height: 2; color: var(--text); margin-bottom: 10px; }
.guoxue-py { font-size: 13px; line-height: 1.9; color: #8f866f; letter-spacing: .5px; margin-bottom: 14px; }
.guoxue-bai { font-size: 14px; line-height: 1.9; color: var(--dim); text-align: left; background: rgba(201,165,92,.06); border-radius: 8px; padding: 12px 14px; }

/* 按钮 */
.btn {
  border: none; border-radius: 10px; cursor: pointer; font-family: inherit;
  padding: 12px 22px; font-size: 14px; letter-spacing: 3px; transition: all .2s;
}
.btn-primary { background: linear-gradient(135deg, #d4b06a, #a5823f); color: #14120c; font-weight: bold; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; }
.btn-ghost { background: none; border: 1px solid var(--panel2); color: var(--dim); }
.btn-ghost.small { padding: 5px 12px; font-size: 12px; letter-spacing: 1px; }
.btn-danger { background: var(--red); color: #f5e8e0; }
.btn-big { width: 100%; padding: 15px; font-size: 16px; letter-spacing: 8px; }
.cast-hint { text-align: center; margin-top: 20px; font-size: 12px; color: var(--gold-dim); letter-spacing: 3px; }

/* 排盘 */
.result-meta {
  background: var(--panel); border: 1px solid var(--panel2); border-radius: 12px;
  padding: 12px 14px; margin-bottom: 12px; font-size: 12px; color: var(--dim); line-height: 2;
}
.result-meta b { color: var(--text); font-weight: normal; }
.result-matter { font-size: 14px; color: var(--gold); margin-bottom: 4px; letter-spacing: 1px; }

.pan-panel { margin-bottom: 14px; }
.pan-title {
  font-size: 13px; color: var(--gold); letter-spacing: 3px; margin-bottom: 8px;
  display: flex; align-items: baseline; gap: 8px;
}
.pan-title .sym { font-size: 18px; }
.pan-title .guaci-dim { font-size: 11px; color: var(--dim); letter-spacing: 0; }
.pan-table {
  width: 100%; background: var(--panel); border: 1px solid var(--panel2); border-radius: 12px; overflow: hidden;
  border-collapse: collapse;
}
.pan-table td { padding: 9px 6px; font-size: 13px; text-align: center; border-top: 1px solid rgba(255,255,255,.04); }
.pan-table tr:first-child td { border-top: none; }
.yao-fig { display: flex; align-items: center; gap: 6px; width: 66px; margin: 0 auto; }
.yao-bars { display: flex; gap: 6px; flex: 1; }
.yao-bar { height: 5px; background: var(--text); border-radius: 2px; flex: 1; transition: all .3s; }
.yao-bar.dong { background: var(--gold); box-shadow: 0 0 8px rgba(201,165,92,.6); }
.yao-mark { width: 12px; font-size: 13px; color: var(--gold); line-height: 1; text-align: left; flex: none; }
.badge { display: inline-block; border: 1px solid var(--gold); color: var(--gold); font-size: 10px; border-radius: 4px; padding: 1px 4px; margin-left: 3px; }
.tag { font-size: 10px; padding: 1px 5px; border-radius: 4px; margin: 0 2px; display: inline-block; }
.tag-kong { background: rgba(194,91,78,.18); color: var(--bad); }
.tag-po { background: rgba(194,91,78,.25); color: var(--bad); }
.tag-dong { background: rgba(201,165,92,.15); color: var(--gold); }
.tag-shi { background: rgba(201,165,92,.28); color: var(--gold); font-weight: bold; }
.tag-ying { border: 1px solid var(--gold-dim); color: var(--gold-dim); }
.liushen-cell { color: var(--dim); font-size: 12px; }
.liuqin-cell { color: var(--text); }
.bian-arrow { color: var(--gold-dim); font-size: 12px; }
.wu-xing { color: var(--dim); font-size: 11px; }

/* 解读 */
.interp-section {
  background: var(--panel); border: 1px solid var(--panel2); border-radius: 12px;
  padding: 14px 16px; margin-bottom: 12px;
}
.interp-section h4 { font-size: 13px; color: var(--gold); letter-spacing: 2px; margin-bottom: 10px; font-weight: normal; }
.it-line { font-size: 13px; line-height: 2; color: var(--text); }
.it-line.dim { color: var(--dim); font-size: 12px; }
.verdict { font-size: 15px; letter-spacing: 1px; padding: 8px 0; }
.actions-row { display: flex; gap: 10px; margin: 14px 0; }
.actions-row .btn { flex: 1; }

/* 经文页 */
.jing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.jing-item {
  background: var(--panel); border: 1px solid var(--panel2); border-radius: 10px;
  padding: 10px 4px; text-align: center; cursor: pointer; transition: all .2s; font-family: inherit; color: var(--text);
}
.jing-item:hover { border-color: var(--gold-dim); }
.jing-item .sym { font-size: 26px; color: var(--gold); display: block; }
.jing-item .nm { font-size: 11px; margin-top: 4px; display: block; letter-spacing: 0; }
.jing-detail { background: var(--panel); border: 1px solid var(--panel2); border-radius: 12px; padding: 18px; margin-top: 14px; }
.jing-detail h3 { color: var(--gold); font-size: 18px; letter-spacing: 3px; font-weight: normal; margin-bottom: 12px; }
.jing-detail h3 .sym { font-size: 30px; vertical-align: middle; margin-right: 6px; }
.jing-detail .gua-ci { font-size: 14px; line-height: 2.2; margin-bottom: 14px; color: var(--text); }
.jing-detail .yao-ci { font-size: 13px; line-height: 2.2; color: var(--dim); border-top: 1px dashed var(--panel2); padding-top: 12px; }
.jing-detail .yao-ci b { color: var(--text); font-weight: normal; }

/* 历史 */
.history-item {
  background: var(--panel); border: 1px solid var(--panel2); border-radius: 12px;
  padding: 12px 14px; margin-bottom: 10px; cursor: pointer; transition: all .2s; position: relative;
}
.history-item:hover { border-color: var(--gold-dim); }
.hi-top { display: flex; justify-content: space-between; align-items: baseline; }
.hi-gua { font-size: 15px; color: var(--gold); }
.hi-gua .sym { font-size: 20px; margin-right: 6px; }
.hi-time { font-size: 11px; color: var(--dim); }
.hi-matter { font-size: 13px; margin-top: 6px; line-height: 1.6; color: var(--text); }
.hi-del {
  position: absolute; right: 10px; bottom: 8px; background: none; border: none;
  color: var(--dim); font-size: 11px; cursor: pointer; font-family: inherit;
}
.hi-del:hover { color: var(--bad); }

/* 备注 */
.note-item { background: var(--panel); border: 1px solid var(--panel2); border-radius: 12px; padding: 12px 14px; margin-bottom: 10px; }
.note-item h4 { font-size: 13px; color: var(--gold); font-weight: normal; letter-spacing: 1px; }
.note-item p { font-size: 13px; color: var(--dim); margin-top: 6px; line-height: 1.8; white-space: pre-wrap; }
.note-item .hi-gua { font-size: 13px; }

/* 关于 */
.about-body { text-align: center; }
.about-logo { font-size: 64px; color: var(--gold); margin: 20px 0 8px; }
.about-body h3 { letter-spacing: 6px; font-weight: normal; }
.about-list { text-align: left; background: var(--panel); border: 1px solid var(--panel2); border-radius: 12px; padding: 16px; margin: 18px 0; }
.about-list p { font-size: 13px; line-height: 2.4; color: var(--text); }
.small-text { font-size: 12px; line-height: 2.2; margin-top: 10px; }

/* 弹窗 */
.mask {
  position: fixed; inset: 0; background: rgba(0,0,0,.7); z-index: 100;
  display: flex; align-items: center; justify-content: center; padding: 24px;
}
.modal {
  background: var(--bg2); border: 1px solid var(--gold-dim); border-radius: 14px;
  width: 100%; max-width: 400px; padding: 20px;
}
.modal h3 { font-size: 15px; color: var(--gold); letter-spacing: 2px; font-weight: normal; margin-bottom: 10px; }
.modal p { font-size: 14px; line-height: 1.8; }
.modal-btns { display: flex; gap: 10px; margin-top: 16px; }
.modal-btns .btn { flex: 1; }
.modal textarea { margin-top: 10px; }

/* 底部导航 */
#bottom-nav {
  position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 520px; display: flex;
  background: rgba(23,21,15,.96); border-top: 1px solid var(--panel2); backdrop-filter: blur(8px); z-index: 50;
}
.nav-item {
  flex: 1; background: none; border: none; color: var(--dim); font-size: 11px;
  padding: 9px 0 10px; cursor: pointer; font-family: inherit; display: flex; flex-direction: column; align-items: center; gap: 2px;
}
.nav-icon { font-size: 18px; line-height: 1.2; }
.nav-item.active { color: var(--gold); }

@media (min-width: 560px) {
  body::before { letter-spacing: 40px; font-size: 24px; }
}