/* ================================================================
   I CHING · v4 — design anchored on the user's Coze reference
   Near-black ground · muted antique gold · serif display ·
   zero radius · zero italics · thick readable hexagram bars
   ================================================================ */

:root{
  --bg:#0d0c0a;
  --panel:#14120e;
  --panel-2:#191610;
  --gold:#b9995e;
  --gold-hi:#e2c68c;
  --gold-soft:rgba(185,153,94,.12);
  --line:rgba(185,153,94,.20);
  --line-strong:rgba(185,153,94,.45);
  --card:rgba(13,12,10,.62);
  --panel-glass:rgba(20,18,14,.86);
  --ink:#d9d4c7;
  --dim:#9a9384;
  --faint:#6f6a5e;
  --serif:'Cormorant Garamond',Georgia,'Times New Roman',serif;
  --sans:'Inter',-apple-system,'Segoe UI',sans-serif;
  --sc:'Noto Serif SC','Cormorant Garamond',serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg);position:relative}
body{
  background:transparent;
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
/* 龟甲裂纹底纹：覆盖整页，压在内容之下，克制到"近看有纹、远看是深色底" */
body::before{
  content:'';
  position:absolute;inset:0;
  background-image:url('tortoise-shell.svg?v=7');
  background-position:center top;
  background-size:1400px auto;
  background-repeat:repeat;
  opacity:.3;
  z-index:-1;
  pointer-events:none;
}
::selection{background:var(--gold);color:#0d0c0a}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:960px;margin:0 auto;padding:0 28px}
.wrap--wide{max-width:1120px}

/* ————— type ————— */
.kicker{
  font-family:var(--sans);
  font-size:11px;
  font-weight:500;
  letter-spacing:.32em;
  text-transform:uppercase;
  color:var(--gold);
}
.kicker .zh{font-family:var(--sc);letter-spacing:.4em;margin-left:.6em;color:var(--gold);opacity:.85}
.sec-title{
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(30px,4.4vw,42px);
  line-height:1.15;
  letter-spacing:.01em;
  color:#ece7da;
  margin:14px 0 12px;
}
.sec-sub{color:var(--dim);max-width:620px;font-size:15px}
.sec-head{margin-bottom:40px}
h4.rg{
  font-family:var(--sans);
  font-size:11px;
  font-weight:600;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--gold);
  margin:34px 0 10px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
h4.rg:first-of-type{margin-top:26px}
h4.rg .zh{font-family:var(--sc);letter-spacing:.35em;margin-left:.6em;font-weight:600}

/* ————— header ————— */
.site-head{
  position:sticky;top:0;z-index:50;
  background:rgba(13,12,10,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.site-head .inner{
  max-width:1120px;margin:0 auto;padding:0 28px;
  height:64px;display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:12px}
.brand .zh{
  font-family:var(--sc);font-size:20px;font-weight:600;color:var(--gold);
}
.brand .word{
  font-family:var(--serif);font-size:17px;font-weight:600;
  letter-spacing:.22em;color:#ece7da;
}
.site-nav{display:flex;gap:34px}
.site-nav a{
  font-size:11px;font-weight:500;letter-spacing:.22em;text-transform:uppercase;
  color:var(--dim);padding:24px 0 21px;border-bottom:2px solid transparent;
  transition:color .2s;
}
.site-nav a:hover{color:var(--ink)}
.site-nav a[aria-current="page"]{color:var(--gold);border-bottom-color:var(--gold)}

/* ————— hero ————— */
.hero{padding:110px 0 90px;text-align:center;position:relative;overflow:hidden}
.hero .arc{
  width:150px;height:150px;border:1px solid var(--line);
  border-radius:50%;margin:0 auto 38px;position:relative;
}
.hero .arc::after{
  content:'';position:absolute;inset:-2px;border-radius:50%;
  border:1px solid transparent;
  border-top-color:var(--gold);
  border-right-color:rgba(185,153,94,.55);
  transform:rotate(-35deg);
}
.hero-kicker{margin-bottom:26px}
.hero-title{
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(68px,12vw,132px);
  line-height:1;
  letter-spacing:.06em;
  background:linear-gradient(180deg,#eedfae 8%,#c9a961 60%,#9c7f4c 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero-sub{
  color:var(--dim);
  max-width:560px;
  margin:30px auto 0;
  font-size:16px;
}
.hero-sub b{color:var(--ink);font-weight:500}
.hero-cta{margin-top:44px;display:flex;gap:18px;justify-content:center;flex-wrap:wrap}

/* ————— buttons ————— */
.btn{
  display:inline-block;
  font-family:var(--sans);
  font-size:12px;font-weight:600;
  letter-spacing:.24em;text-transform:uppercase;
  padding:17px 38px;
  border:1px solid var(--gold);
  cursor:pointer;
  transition:all .2s;
  background:none;
}
.btn-gold{background:var(--gold);color:#100e0a}
.btn-gold:hover{background:var(--gold-hi);border-color:var(--gold-hi)}
.btn-line{color:var(--gold)}
.btn-line:hover{background:var(--gold-soft)}
.btn:disabled{opacity:.45;cursor:default}
.btn:disabled:hover{background:var(--gold);border-color:var(--gold)}

/* ————— sections & cards ————— */
section{padding:90px 0}
section + section{border-top:1px solid var(--line)}
.panel{background:var(--panel-glass);border:1px solid var(--line);padding:48px}

/* ————— hexagram figure (thick bars — the fix) ————— */
.fig{display:inline-block}
.fig .row{display:flex;width:104px;height:11px;margin-bottom:11px;position:relative}
.fig .row:last-child{margin-bottom:0}
.fig .seg{flex:1;height:11px;background:var(--gold)}
.fig .row.yin .seg:first-child{margin-right:20px}
.fig .row.chg .seg{background:var(--gold-hi)}
.fig .row.chg::after{
  content:'';position:absolute;right:-22px;top:50%;
  width:5px;height:5px;margin-top:-2.5px;border-radius:50%;
  background:var(--gold-hi);
}
.fig--sm .row{width:54px;height:6px;margin-bottom:6px}
.fig--sm .row:last-child{margin-bottom:0}
.fig--sm .seg{height:6px}
.fig--sm .row.yin .seg:first-child{margin-right:11px}
.fig--sm .row.chg::after{right:-13px;width:4px;height:4px;margin-top:-2px}

/* ————— hexagon card (reading / daily) ————— */
.hex-card{display:flex;gap:52px;align-items:flex-start}
.hex-figure{text-align:center;flex-shrink:0}
.hex-figure .fig-box{
  padding:34px 42px;background:var(--panel-2);border:1px solid var(--line);
  display:inline-block;
}
.hex-figure .fig{display:block}
.hex-figure .fig-cap{
  margin-top:14px;font-size:10px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--faint);
}
.hex-body{flex:1;min-width:0}
.hex-no{
  display:flex;align-items:baseline;gap:14px;
  font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);
}
.hex-no .bigno{
  font-family:var(--serif);font-size:30px;font-weight:500;
  letter-spacing:0;color:#ece7da;line-height:1;
}
.hex-name{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(34px,5vw,48px);line-height:1.1;color:#ece7da;
  margin:12px 0 4px;
}
.hex-name .zh{
  font-family:var(--sc);font-weight:600;
  color:var(--gold);font-size:.62em;
  vertical-align:.14em;margin-left:.35em;letter-spacing:.1em;
}
.hex-pinyin{color:var(--faint);font-size:13px;letter-spacing:.12em}
.trigram-row{display:flex;gap:44px;margin:26px 0 4px}
.tg{display:flex;gap:14px;align-items:center}
.tg .sym{font-size:26px;color:var(--gold);line-height:1}
.tg .t{font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--faint)}
.tg .t b{display:block;font-size:13px;font-weight:500;letter-spacing:.06em;color:var(--ink);text-transform:none;margin-top:3px}
.hex-judge{font-family:var(--serif);font-size:20px;line-height:1.6;color:#e6e0d2}
.q-echo{
  font-family:var(--serif);font-size:20px;color:var(--gold);
  border-left:2px solid var(--gold);padding:4px 0 4px 22px;
  margin-bottom:34px;
}
.transform-note{
  margin-top:34px;padding:22px 26px;
  background:var(--gold-soft);border:1px solid var(--line);
  font-size:15px;color:var(--ink);
}
.transform-note b{color:var(--gold-hi);font-weight:600}
.transform-note .zh{font-family:var(--sc)}

/* ————— cast stage ————— */
.question-wrap{margin-bottom:36px}
.question-wrap label{
  display:block;font-size:11px;letter-spacing:.26em;text-transform:uppercase;
  color:var(--gold);margin-bottom:14px;
}
textarea{
  width:100%;min-height:96px;resize:vertical;
  background:var(--panel);border:1px solid var(--line);
  color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.6;
  padding:18px 20px;
}
textarea:focus{outline:none;border-color:var(--line-strong)}
textarea::placeholder{color:var(--faint)}
.cast-stage{text-align:center;padding:52px 0 8px}
.cast-status{font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--faint);min-height:18px}
.cast-status.live{color:var(--gold)}
.cast-value{
  font-family:var(--serif);font-size:17px;color:var(--gold-hi);
  min-height:26px;margin-top:14px;
}
.coins{display:flex;gap:26px;justify-content:center;margin:30px 0 38px}
.coin{
  width:58px;height:58px;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--sc);font-size:22px;font-weight:600;color:var(--gold);
  background:var(--panel-2);
}
.coin.flipping{animation:flip .72s linear infinite}
@keyframes flip{
  0%{transform:rotateX(0)}50%{transform:rotateX(180deg)}100%{transform:rotateX(360deg)}
}
.lines{max-width:340px;margin:10px auto 0}
.line-row{
  display:flex;align-items:center;gap:18px;margin-bottom:12px;
  opacity:0;transform:translateY(8px);transition:all .45s;
}
.line-row.revealed{opacity:1;transform:none}
.line-label{font-family:var(--sc);font-size:13px;color:var(--faint);width:18px;text-align:right}
.line{flex:1;display:flex;height:11px;position:relative}
.line .seg{flex:1;height:11px;background:var(--gold)}
.line.yin .seg:first-child{margin-right:20px}
.line.changing .seg{background:var(--gold-hi)}
.line .mark{
  position:absolute;right:-24px;top:50%;transform:translateY(-50%);
  color:var(--gold-hi);font-size:13px;line-height:1;
}

/* result reveal */
#reading-panel{display:none}
#reading-panel.show{display:block;animation:rise .6s ease both}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

.reading-cta{
  margin-top:44px;padding-top:34px;border-top:1px solid var(--line);
  text-align:center;
}
.reading-cta p{color:var(--dim);max-width:520px;margin:0 auto 22px;font-size:15px}

/* ————— steps ————— */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.step{background:var(--card);padding:38px 32px}
.step .n{
  font-family:var(--serif);font-size:15px;color:var(--gold);
  letter-spacing:.2em;margin-bottom:16px;display:block;
}
.step h3{
  font-family:var(--serif);font-weight:500;font-size:24px;color:#ece7da;
  margin-bottom:10px;
}
.step h3 .zh{font-family:var(--sc);font-size:.72em;color:var(--gold);margin-left:.4em;font-weight:600}
.step p{color:var(--dim);font-size:14px}

/* ————— daily ————— */
.date-tag{
  font-family:var(--serif);font-size:15px;color:var(--gold);
  letter-spacing:.18em;text-transform:uppercase;
}
.week-grid{
  display:grid;grid-template-columns:repeat(7,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);margin-top:36px;
}
.day-cell{
  background:var(--card);padding:22px 14px;text-align:center;cursor:pointer;
  transition:background .2s;
}
.day-cell:hover{background:var(--panel-2)}
.day-cell .d{font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--faint)}
.day-cell .fig{margin:16px 0 12px;display:inline-block}
.day-cell .zh{font-family:var(--sc);font-size:17px;font-weight:600;color:var(--ink)}
.day-cell .nm{
  display:block;font-size:10px;color:var(--faint);margin-top:5px;
  letter-spacing:.04em;line-height:1.4;
}
.day-cell.today .d{color:var(--gold)}

/* ————— trigrams ————— */
.tri-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.tri-cell{background:var(--card);padding:28px 12px;text-align:center}
.tri-cell .sym{font-size:30px;color:var(--gold);line-height:1}
.tri-cell .zh{font-family:var(--sc);font-size:19px;font-weight:600;color:#ece7da;margin-top:12px;display:block}
.tri-cell .en{display:block;font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);margin-top:4px}

/* ————— 64 index ————— */
.hex-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.hex-cell{background:var(--card);padding:20px 10px;text-align:center;cursor:pointer;transition:background .2s}
.hex-cell:hover{background:var(--panel-2)}
.hex-cell .fig{display:inline-block;margin-bottom:12px}
.hex-cell .zh{font-family:var(--sc);font-size:16px;font-weight:600;color:#ece7da;display:block}
.hex-cell .no{display:block;font-size:10px;color:var(--faint);margin-top:4px;letter-spacing:.1em}

/* ————— modal ————— */
.modal{
  position:fixed;inset:0;z-index:100;display:none;
  background:rgba(8,7,5,.82);backdrop-filter:blur(4px);
  align-items:center;justify-content:center;padding:24px;
}
.modal.open{display:flex}
.modal-card{
  background:var(--panel);border:1px solid var(--line-strong);
  max-width:640px;width:100%;max-height:86vh;overflow-y:auto;
  padding:44px 46px;position:relative;
  animation:rise .4s ease both;
}
.modal-x{
  position:absolute;top:14px;right:14px;width:34px;height:34px;
  background:none;border:1px solid var(--line);color:var(--dim);
  font-size:16px;cursor:pointer;
}
.modal-x:hover{color:var(--ink);border-color:var(--line-strong)}
.m-head{display:flex;gap:26px;align-items:center;margin-bottom:8px;padding-right:36px}
.m-name{font-family:var(--serif);font-size:28px;font-weight:500;color:#ece7da;line-height:1.2}
.m-name .zh{font-family:var(--sc);font-size:.7em;color:var(--gold);margin-left:.35em;font-weight:600}
.m-py{color:var(--faint);font-size:12px;letter-spacing:.14em;margin-top:4px}
.m-tri{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin:14px 0 6px}
.modal-card h4.rg{border-top:1px solid var(--line)}

/* ————— masters page ————— */
.price-tag{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(56px,8vw,84px);line-height:1;color:#ece7da;
}
.price-tag .cur{font-size:.45em;color:var(--gold);vertical-align:.5em;margin-right:.1em}
.price-note{color:var(--faint);font-size:13px;letter-spacing:.08em;margin-top:10px}
.free-slots{
  display:inline-flex;align-items:center;gap:14px;
  margin-top:26px;padding:12px 26px;
  border:1px solid var(--gold);
  color:var(--gold);
  font-size:13px;letter-spacing:.12em;
}
.free-slots .zh{font-size:15px;letter-spacing:.3em;margin-right:-.3em}
.master-panel{background:var(--panel);border:1px solid var(--line);padding:52px 48px;text-align:center}
.master-list{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);text-align:left}
.master-list .step{padding:34px 30px}

/* ————— footer ————— */
.site-foot{border-top:1px solid var(--line);padding:64px 0 48px;text-align:center}
.f-brand{
  display:inline-block;
  font-family:var(--sc);font-size:26px;font-weight:600;
  color:var(--gold);letter-spacing:.9em;margin-right:-.9em;
}
.site-foot nav{display:flex;gap:30px;justify-content:center;margin:28px 0 34px}
.site-foot nav a{
  font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--dim);
}
.site-foot nav a:hover{color:var(--gold)}
.disclaim{
  color:var(--faint);font-size:12px;line-height:1.8;
  max-width:620px;margin:0 auto 22px;
}
.disclaim b{color:var(--dim);font-weight:500}
.fine{font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:#57534a}

/* ————— responsive ————— */
@media (max-width:900px){
  .hex-card{flex-direction:column;gap:36px}
  .hex-figure{align-self:center}
  .steps{grid-template-columns:1fr}
  .master-list{grid-template-columns:1fr}
  .tri-grid{grid-template-columns:repeat(4,1fr)}
  .hex-grid{grid-template-columns:repeat(4,1fr)}
  .week-grid{grid-template-columns:repeat(4,1fr)}
  .site-nav{gap:20px}
  .site-nav a{letter-spacing:.14em}
  section{padding:64px 0}
  .panel{padding:32px 24px}
  .master-panel{padding:36px 24px}
  .modal-card{padding:32px 24px}
  .brand .word{display:none}
}
@media (max-width:560px){
  .hex-grid{grid-template-columns:repeat(3,1fr)}
  .week-grid{grid-template-columns:repeat(2,1fr)}
  .trigram-row{flex-wrap:wrap;gap:22px}
  .site-nav{gap:14px}
  .site-nav a{font-size:10px}
}