:root{
  --bg:#0c0a13;
  --panel:rgba(30,24,44,0.72);
  --panel-solid:#1c1628;
  --ink:#ece3d2;
  --mut:#a99e8c;
  --gold:#c9a85a;
  --gold-bright:#e6c878;
  --cinnabar:#c23b2e;
  --cinnabar-soft:#d9594a;
  --line:rgba(201,168,90,0.30);
  --line-soft:rgba(201,168,90,0.14);
  --good:#8bbf6a;
  --jade:#5fae9a;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1200px 620px at 50% -12%, rgba(120,70,160,0.20), transparent 60%),
    radial-gradient(900px 520px at 86% 8%, rgba(194,59,46,0.12), transparent 55%),
    radial-gradient(900px 520px at 8% 22%, rgba(95,174,154,0.08), transparent 55%),
    linear-gradient(180deg,#0c0a13 0%, #0e0b16 42%, #0a0811 100%);
  background-attachment:fixed;
  color:var(--ink);
  font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",sans-serif;
  font-size:15px;line-height:1.8;
  min-height:100vh;
}
/* 星空层 */
.stars{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.55;
  background-image:
    radial-gradient(1px 1px at 18% 28%, rgba(255,255,255,.6), transparent),
    radial-gradient(1px 1px at 72% 62%, rgba(255,255,255,.4), transparent),
    radial-gradient(1.6px 1.6px at 42% 82%, rgba(230,200,120,.5), transparent),
    radial-gradient(1px 1px at 88% 22%, rgba(255,255,255,.35), transparent),
    radial-gradient(1px 1px at 56% 14%, rgba(255,255,255,.3), transparent),
    radial-gradient(1.4px 1.4px at 30% 55%, rgba(255,255,255,.3), transparent);
  background-repeat:repeat;background-size:320px 320px}

.wrap{position:relative;z-index:1;max-width:880px;margin:0 auto;padding:0 18px 80px}

/* ---------- 头部 / 匾额 ---------- */
.site-header{position:relative;z-index:2;text-align:center;padding:48px 0 16px}
.plaque{display:inline-flex;align-items:center;gap:14px;
  padding:14px 32px;border:2px solid var(--gold);border-radius:16px;
  background:linear-gradient(180deg,rgba(40,30,58,.72),rgba(18,14,28,.72));
  box-shadow:0 0 26px rgba(201,168,90,.28), inset 0 0 20px rgba(201,168,90,.12)}
.plaque-title{font-family:"KaiTi","STKaiti","Kaiti SC","楷体",serif;
  font-size:44px;font-weight:600;letter-spacing:16px;color:var(--gold-bright);
  text-shadow:0 0 16px rgba(230,200,120,.5)}
.emblem{font-size:32px;color:var(--gold);filter:drop-shadow(0 0 10px rgba(201,168,90,.6))}
.slogan{color:var(--mut);font-size:14px;letter-spacing:3px;margin-top:14px}

.topnav{display:flex;align-items:center;justify-content:center;gap:6px;flex-wrap:wrap;
  margin-top:22px;padding:10px 12px;border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
  position:sticky;top:0;z-index:10;
  background:rgba(12,10,19,.82);backdrop-filter:blur(8px)}
.topnav a{color:var(--gold);text-decoration:none;padding:6px 16px;font-size:14px;letter-spacing:2px;
  border:1px solid transparent;border-radius:999px;transition:.25s}
.topnav a:hover{background:rgba(201,168,90,.12);border-color:var(--line)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}

/* ---------- 区块 / 殿额 ---------- */
section{margin-bottom:42px;scroll-margin-top:84px}
.hall-label{text-align:center;margin-bottom:10px}
.hall-label span{display:inline-block;width:36px;height:36px;line-height:34px;
  border:1px solid var(--gold);border-radius:50%;color:var(--gold-bright);
  font-family:"KaiTi","STKaiti","楷体",serif;font-size:18px;
  box-shadow:0 0 14px rgba(201,168,90,.22)}
h2{font-family:"KaiTi","STKaiti","Kaiti SC","楷体",serif;
  font-size:24px;font-weight:600;color:var(--gold-bright);text-align:center;
  letter-spacing:5px;margin:0 0 18px;text-shadow:0 0 12px rgba(230,200,120,.22)}
h3{font-size:16px;font-weight:600;color:var(--ink);margin:18px 0 6px}
p{margin:8px 0;color:var(--ink)}
.muted{color:var(--mut)}
a{color:var(--gold);text-decoration:none}
a:hover{text-decoration:underline}

/* ---------- 卡片 ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;
  padding:22px 24px;margin-bottom:18px;
  box-shadow:0 10px 34px rgba(0,0,0,.4), inset 0 0 34px rgba(201,168,90,.04);
  backdrop-filter:blur(4px);
  position:relative}
.card::before{content:"";display:block;height:2px;margin:-22px -24px 18px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:.55}
.kepu-teaser a{display:inline-block;margin-top:4px}

/* ---------- 表单 ---------- */
.row{display:flex;gap:12px;flex-wrap:wrap}
.row>div{flex:1;min-width:150px}
label{display:block;margin:10px 0 4px;color:var(--mut);font-size:13px;letter-spacing:1px}
input,select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;
  font-size:14px;background:rgba(10,8,16,.6);color:var(--ink);outline:none;transition:.2s}
input:focus,select:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,168,90,.18)}

/* ---------- 按钮 ---------- */
button{font-family:inherit;border:none;border-radius:10px;padding:11px 22px;
  font-size:14px;letter-spacing:2px;cursor:pointer;margin:12px 8px 0 0;transition:.22s}
.btn-primary{background:linear-gradient(180deg,var(--cinnabar-soft),var(--cinnabar));color:#fff;
  box-shadow:0 6px 18px rgba(194,59,46,.35)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-secondary{background:linear-gradient(180deg,var(--gold-bright),var(--gold));color:#2a1d10;
  box-shadow:0 6px 18px rgba(201,168,90,.3)}
.btn-secondary:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--gold);border:1px solid var(--gold)}
.btn-ghost:hover{background:rgba(201,168,90,.12)}
.btn-sm{padding:6px 14px;font-size:13px;margin:0}

/* ---------- 卦象 ---------- */
pre{white-space:pre-wrap;font-family:"Menlo","Consolas",monospace;font-size:13.5px;
  line-height:1.85;background:rgba(8,6,12,.6);border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;color:#d9d0bd}
.gua-box{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.yaos{display:flex;flex-direction:column-reverse;gap:8px}
.yao{width:60px;height:15px;border-radius:3px;transform-origin:left center;
  background:linear-gradient(90deg,var(--gold),var(--gold-bright));
  box-shadow:0 0 10px rgba(201,168,90,.4);
  animation:yaoIn .5s cubic-bezier(.22,1,.36,1) both}
.yao:nth-child(1){animation-delay:.05s}
.yao:nth-child(2){animation-delay:.16s}
.yao:nth-child(3){animation-delay:.27s}
.yao:nth-child(4){animation-delay:.38s}
.yao:nth-child(5){animation-delay:.49s}
.yao:nth-child(6){animation-delay:.60s}
@keyframes yaoIn{from{opacity:0;transform:scaleX(0)}to{opacity:1;transform:scaleX(1)}}
.yao.yin{background:transparent;border:2px solid var(--gold);height:11px}
.yao.dong{outline:3px solid var(--cinnabar);outline-offset:3px;
  animation:yaoIn .5s cubic-bezier(.22,1,.36,1) .60s both, dongGlow 1.8s ease-in-out 1.3s infinite}
@keyframes dongGlow{0%,100%{box-shadow:0 0 6px rgba(194,59,46,.55)}50%{box-shadow:0 0 18px rgba(217,89,74,.95)}}
.gua-meta{font-size:14px;line-height:1.9}
.gua-meta b{color:var(--gold-bright)}
.pill{display:inline-block;background:rgba(201,168,90,.12);border:1px solid var(--line);
  border-radius:20px;padding:3px 13px;margin:3px 5px 3px 0;font-size:13px;color:var(--ink)}

/* ---------- 神算子对话区 ---------- */
.shen-box{background:rgba(20,16,30,.7);border:1px solid var(--line);border-radius:14px;
  padding:18px 20px;margin-top:12px;box-shadow:inset 0 0 26px rgba(95,174,154,.05)}
.shen-box .say{font-size:15px;line-height:1.95;color:var(--ink)}
.opts{margin-top:12px}
.opts button{margin:6px 6px 0 0}
.note{font-size:12.5px;color:var(--cinnabar-soft);background:rgba(194,59,46,.1);
  border:1px solid rgba(194,59,46,.3);border-radius:12px;padding:12px 14px;margin-top:12px}

/* ---------- 五步推演 ---------- */
.solution{margin-top:14px;background:rgba(20,16,30,.7);border:1px solid var(--gold);border-radius:14px;padding:16px 18px}
.solution summary{cursor:pointer;font-weight:700;color:var(--gold-bright);font-size:15px;
  letter-spacing:1px;outline:none;font-family:"KaiTi","STKaiti","楷体",serif}
.solution summary::-webkit-details-marker{color:var(--gold)}
.sol-item{display:flex;gap:12px;padding:9px 0;border-top:1px dashed var(--line-soft)}
.sol-item:first-of-type{border-top:none}
.sol-item b{flex:0 0 96px;color:var(--gold);font-weight:600}
.sol-item span{flex:1;line-height:1.9;color:var(--ink)}

/* ---------- 页脚 ---------- */
.footer{text-align:center;color:var(--mut);font-size:12px;margin-top:46px;
  border-top:1px solid var(--line-soft);padding-top:22px;letter-spacing:1px}

/* ---------- 引言 ---------- */
.hero{text-align:center;margin:22px 0 6px}
.hero-incant{font-family:"KaiTi","STKaiti","楷体",serif;font-size:17px;letter-spacing:3px;
  color:var(--gold);max-width:640px;margin:0 auto;line-height:2;opacity:.92;
  text-shadow:0 0 14px rgba(201,168,90,.22)}

/* ---------- 隐藏 / 动画 ---------- */
.hidden{display:none}
.fade{animation:fade .55s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- 中英双语切换（!important 防压缩/覆盖导致中英同显；app.js 亦有 inline-style 双保险） ---------- */
html:not(.lang-en) .en{display:none!important}
html.lang-en .zh{display:none!important}
html.lang-en .en{display:inline!important}

/* ---------- 匾额副标 / 天地人标签 ---------- */
.plaque-sub{color:var(--gold);font-size:13px;letter-spacing:2px;margin:10px 0 0;opacity:.92}
.hall-label .env-tag{width:auto;height:auto;line-height:1.5;border-radius:999px;
  padding:2px 12px;margin-left:10px;font-size:12.5px;font-family:"Microsoft YaHei",sans-serif;
  color:var(--gold);box-shadow:0 0 12px rgba(201,168,90,.18);vertical-align:middle}

/* ---------- 顶栏胶囊按钮（语言） ---------- */
.pill-btn{background:transparent;color:var(--gold);border:1px solid var(--gold);
  padding:6px 13px;font-size:13px;letter-spacing:1px;margin:0;border-radius:999px;cursor:pointer;transition:.2s}
.pill-btn:hover{background:rgba(201,168,90,.14)}
.lang-btn{min-width:52px}

/* ---------- 神算子点拨：反馈条 / 文本 ---------- */
.ai-note{font-size:12px;color:var(--mut);margin-top:8px}
.oracle-title{font-family:"KaiTi","STKaiti","楷体",serif;color:var(--gold-bright);font-weight:700;letter-spacing:1px}
.oracle-text{white-space:pre-wrap;line-height:1.95}
.fb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:12px;
  padding-top:10px;border-top:1px dashed var(--line-soft)}
.fb .muted{font-size:12.5px;margin-right:2px}

/* ---------- 科普页微调 ---------- */
.kepu p{color:var(--ink)}
.kepu ul{margin:6px 0 6px 1.2em;padding:0}
.kepu li{margin:4px 0;color:var(--ink)}

/* ---------- 移动端适配（≤640px） ---------- */
@media (max-width:640px){
  body{font-size:14px}
  .wrap{padding:0 12px 56px}
  .site-header{padding:30px 0 8px}
  .plaque{padding:10px 18px;gap:8px;border-radius:12px}
  .plaque-title{font-size:27px;letter-spacing:6px}
  .emblem{font-size:23px}
  .plaque-sub{font-size:12px;letter-spacing:1px}
  .slogan{font-size:12px;letter-spacing:2px;margin-top:10px}
  .topnav{gap:0;padding:8px 4px}
  .topnav a{padding:6px 10px;font-size:13px;letter-spacing:1px}
  .nav-right{gap:6px}
  .lang-btn{min-width:46px;padding:5px 10px}
  section{margin-bottom:30px;scroll-margin-top:92px}
  h2{font-size:19px;letter-spacing:3px;margin:0 0 14px}
  h3{font-size:15px}
  .card{padding:16px 14px;border-radius:12px}
  .card::before{margin:-16px -14px 14px}
  .hero{margin:14px 0 4px}
  .hero-incant{font-size:14.5px;letter-spacing:1.5px;line-height:1.95}
  .row{flex-direction:column;gap:0}
  .row>div{min-width:0}
  input,select{padding:9px 10px;font-size:14px}
  button{padding:10px 16px;font-size:13.5px;letter-spacing:1px}
  .btn-sm{padding:6px 12px;font-size:12.5px}
  pre{font-size:12px;padding:12px;line-height:1.75}
  .gua-box{gap:14px}
  .yao{width:48px}
  .gua-meta{font-size:13px}
  .shen-box{padding:14px 14px}
  .fb{gap:6px}
  .fb .muted{font-size:12px}
  .solution{padding:12px 14px}
  .sol-item{flex-direction:column;gap:0}
  .sol-item b{flex-basis:auto}
  .note{font-size:12px;padding:10px 12px}
  .footer{font-size:11px;letter-spacing:0}
  .oracle-text{font-size:14px}
}