@charset "utf-8";
/* 参同契 · 十二消息卦：纸墨宋体，首屏三维（月节 / 昼夜 / 日辰）打开即见。 */
:root{
  --paper:#f4f1e8;--paper-2:#faf8f1;--paper-3:#eeeade;
  --ink:#23332c;--muted:#6f7568;--line:#d5d8cb;--rule:#c9cdbe;
  --red:#a44531;--green:#63705c;
  --serif:"Songti SC","Noto Serif CJK SC","Source Han Serif SC","STSong",serif;
  --num:Georgia,"Times New Roman",var(--serif);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;color:var(--ink);font-family:var(--serif);font-size:15px;line-height:1.6;
  background-color:var(--paper);
  background-image:
    radial-gradient(ellipse at 12% 0%,#fdfbf5 0%,rgba(253,251,245,0) 55%),
    radial-gradient(ellipse at 88% 100%,#e9e5d7 0%,rgba(233,229,215,0) 60%);
}
/* 极轻纸纹：只作肌理，不压正文。 */
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:3;opacity:.22;mix-blend-mode:multiply;
  background-image:
    repeating-linear-gradient(0deg,rgba(96,92,74,.10) 0 1px,rgba(0,0,0,0) 1px 3px),
    repeating-linear-gradient(90deg,rgba(96,92,74,.08) 0 1px,rgba(0,0,0,0) 1px 4px);
}
main{position:relative;z-index:1;max-width:1240px;margin:0 auto;padding:0 44px}
a{color:inherit}
button{font:inherit;color:inherit;cursor:pointer}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--red);outline-offset:3px}
.muted{color:var(--muted)}
.tiny{font-size:11px;color:var(--muted);line-height:1.8}

/* ---------- 顶端：参同契 + 北京时间 + 当天公农历 ---------- */
header{position:relative;display:flex;align-items:baseline;gap:16px;padding:15px 0 11px;border-bottom:2px solid var(--ink)}
header::after{content:"";position:absolute;left:0;right:0;bottom:-5px;height:1px;background:var(--line)}
.brand{font-size:23px;letter-spacing:.22em;text-decoration:none;white-space:nowrap}
.edition{font-size:11px;letter-spacing:.14em;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.zone{margin-left:auto;align-self:center;border:1px solid var(--line);border-radius:20px;padding:6px 13px;font:10px/1 "Helvetica Neue",Helvetica,sans-serif;letter-spacing:.16em;color:var(--muted);white-space:nowrap}
.now{display:flex;align-items:baseline;gap:22px;flex-wrap:wrap;padding:13px 0 12px;border-bottom:1px solid var(--line)}
.now time{font-family:var(--num);font-size:clamp(30px,3.5vw,43px);line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.now time::after{content:"";display:inline-block;width:6px;height:6px;margin-left:12px;border-radius:50%;background:var(--red);vertical-align:middle;animation:tick 2s ease-in-out infinite}
@keyframes tick{0%,100%{opacity:1}50%{opacity:.22}}
#calendar{margin:0;font-size:15px;letter-spacing:.05em;font-variant-numeric:tabular-nums}
#lunar{margin:0;font-size:13px;letter-spacing:.05em;color:var(--muted)}

/* ---------- 首屏三维 ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px}
.card{
  position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;
  padding:13px 16px 16px;border:1px solid var(--rule);
  background:linear-gradient(180deg,var(--paper-2),var(--paper-3));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.7),0 1px 2px rgba(35,51,44,.05);
}
.card::before{content:"";position:absolute;inset:5px;border:1px solid rgba(164,69,49,.15);pointer-events:none}
.card>.eyebrow{align-self:stretch;margin:0 0 9px;padding-bottom:8px;border-bottom:1px solid var(--rule);font-size:11px;letter-spacing:.42em;text-indent:.42em;color:var(--red)}
.card-head{display:flex;align-items:baseline;justify-content:center;gap:10px;min-height:30px}
.card-head h3{font-size:26px;font-weight:500;margin:0;line-height:1;letter-spacing:.1em}
.seal{display:inline-block;border:1px solid var(--red);color:var(--red);background:rgba(164,69,49,.05);font-size:11px;line-height:1;padding:4px 7px;letter-spacing:.08em;white-space:nowrap}
.card-range{font-size:12.5px;line-height:1.7;margin:7px 0 0;letter-spacing:.02em}
/* 卦画：自下而上，阳一画、阴两段。 */
.cal-hex{display:flex;flex-direction:column-reverse;gap:6px;width:74px;margin:14px 0 4px}
.cal-hex .yao{display:flex;height:7px;gap:9px}
.cal-hex .yao i{display:block;flex:1;background:var(--ink);border-radius:1px}
.pair-row{display:flex;gap:22px;justify-content:center;margin:2px 0 0}
.pair{display:flex;flex-direction:column;align-items:center;gap:2px}
.pair .cal-hex{width:58px;gap:5px;margin:12px 0 6px}
.pair .cal-hex .yao{height:6px;gap:7px}
.pair strong{font-weight:400;font-size:16px;letter-spacing:.08em}
.pair-role{font-size:10px;letter-spacing:.2em;text-indent:.2em;color:var(--red);border:1px solid var(--rule);background:var(--paper-2);padding:1px 7px}
.chip-row{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin:13px 0 0}
.chip{border:1px solid var(--rule);background:var(--paper-2);padding:5px 10px;font-size:12px;letter-spacing:.06em}
.chip.arrow{border:0;background:none;color:var(--muted);padding:0}
.chip.ghost{border-style:dashed;color:var(--muted)}

/* ---------- 十二时辰选择（唯一一组，位于三维之下） ---------- */
.cycle{display:flex;align-items:center;gap:10px;margin-top:16px}
.phases{flex:1;display:grid;grid-template-columns:repeat(12,1fr);border-left:1px solid var(--rule);border-top:1px solid var(--rule)}
.phase{position:relative;min-width:0;padding:10px 2px 8px;border:0;border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);background:none;color:var(--ink);transition:background .18s ease}
.phase:hover{background:rgba(99,112,92,.1)}
.phase.selected{background:var(--ink);color:var(--paper)}
.phase.current::after{content:"";position:absolute;bottom:5px;left:calc(50% - 2px);width:4px;height:4px;border-radius:50%;background:var(--red)}
.phase.selected.current::after{background:#e8b49b}
.phase strong{display:block;font-weight:400;font-size:14px;letter-spacing:.05em}
.hex{display:flex;flex-direction:column-reverse;gap:5px}
.phase .mini{width:23px;gap:3px;margin:7px auto}
.mini .yao{display:flex;height:3px;gap:4px}
.mini .yao i{display:block;flex:1;background:var(--ink)}
.selected .yao i{background:var(--paper)}
.icon-btn{border:1px solid var(--rule);background:var(--paper-2);color:var(--ink);width:34px;height:34px;padding:0;line-height:1;font-family:var(--num);font-size:15px;flex:none}
.icon-btn:hover:not(:disabled){background:#e8eade}
#resume[hidden]{display:none}

/* ---------- 月历：原生 details 默认收起，summary 即日期 ---------- */
.calendar-section{margin-top:16px;border:1px solid var(--rule);background:var(--paper-2)}
.calendar-section>summary{display:flex;align-items:center;gap:10px;padding:12px 16px;font-size:13px;letter-spacing:.06em;cursor:pointer;list-style:none;font-variant-numeric:tabular-nums}
.calendar-section>summary::-webkit-details-marker{display:none}
.calendar-section>summary::before{content:"▸";color:var(--red);font-size:11px;line-height:1;transition:transform .2s ease}
.calendar-section[open]>summary::before{transform:rotate(90deg)}
.calendar-section[open]>summary{border-bottom:1px solid var(--rule)}
.cal-toolbar{display:flex;align-items:center;gap:10px;padding:11px 14px;border-bottom:1px solid var(--rule);flex-wrap:wrap}
.cal-label{font-size:16px;letter-spacing:.1em;margin:0;min-width:104px}
.cal-nav{border:1px solid var(--rule);background:none;color:var(--ink);width:32px;height:32px;padding:0;line-height:1;font-family:var(--num);font-size:15px}
.cal-nav:hover:not(:disabled){background:#e8eade}
.cal-nav:disabled{opacity:.3;cursor:not-allowed}
#cal-today.icon-btn{margin-left:auto}
.cal-live{font-family:var(--num);font-size:10px;letter-spacing:.06em;color:var(--muted);white-space:nowrap}
.cal-weekdays,.cal-week{display:grid;grid-template-columns:repeat(7,1fr)}
.cal-weekdays{border-bottom:1px solid var(--rule)}
.cal-weekdays span{text-align:center;padding:7px 0;font-size:10px;letter-spacing:.12em;color:var(--muted)}
.cal-week{border-bottom:1px solid #e9ebe0}
.cal-week:last-child{border-bottom:0}
.cal-cell{display:flex;flex-direction:column;align-items:center;gap:1px;min-width:0;min-height:50px;padding:6px 2px;border:0;border-right:1px solid #e9ebe0;background:none;color:var(--ink);transition:background .15s}
.cal-cell:last-child{border-right:0}
.cal-cell:hover{background:#eceee3}
.cal-cell.out{color:#b3b6aa}
.cal-cell.out .cal-lunar{color:#c3c5bb}
/* 越界补位格（1900-01 前 / 2100-12 后）：仅占位，不可点选 */
.cal-cell.out-range,.cal-cell.out-range:hover{background:none;color:#c8cabc;cursor:default}
.cal-cell.today .cal-day{color:var(--red)}
.cal-cell.selected{background:var(--ink);color:var(--paper)}
.cal-cell.selected .cal-lunar{color:#c7cebe}
.cal-day{font-family:var(--num);font-size:15px;line-height:1.15;font-variant-numeric:tabular-nums}
.cal-lunar{font-size:9.5px;line-height:1.3;color:var(--muted);letter-spacing:.02em;white-space:nowrap}
.cal-lunar.first{color:var(--red)}
.cal-fallback{margin:0;padding:22px 16px;font-size:12px;line-height:2;color:var(--muted);text-align:center}

/* ---------- 页尾：经文原文 + 出处 ---------- */
.scripture{display:grid;grid-template-columns:1fr 1fr;gap:3px 40px;margin-top:24px;padding:18px 0 20px;border-top:1px solid var(--rule)}
.scripture p{margin:0;font-size:12px;line-height:1.85;letter-spacing:.04em;color:var(--muted)}
footer{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--rule);padding:16px 0 28px;font-size:10px;letter-spacing:.1em;color:var(--muted)}
footer a{text-underline-offset:4px}

@media(max-width:900px){
  main{padding:0 26px}
  .edition{display:none}
  .phases{grid-template-columns:repeat(6,1fr)}
  .cards{gap:11px}
  .card{padding:11px 12px 13px}
  .card-head h3{font-size:22px}
  .cal-hex{width:64px}
}
@media(max-width:600px){
  main{padding:0 15px}
  body{font-size:14px}
  header{gap:10px;padding:12px 0 9px}
  .brand{font-size:20px;letter-spacing:.18em}
  .zone{padding:5px 10px;font-size:9px;letter-spacing:.12em}
  .now{gap:10px 14px;padding:10px 0 9px}
  .now time{font-size:28px}
  #calendar{font-size:13px}
  #lunar{font-size:12px}
  .cards{grid-template-columns:1fr;gap:8px;margin-top:12px}
  .card{padding:10px 12px 12px}
  .card>.eyebrow{margin-bottom:7px;padding-bottom:6px;letter-spacing:.32em;text-indent:.32em}
  .card-head{min-height:24px;gap:8px}
  .card-head h3{font-size:21px}
  .seal{font-size:10px;padding:3px 6px}
  .cal-hex{width:58px;gap:5px;margin:9px 0 3px}
  .cal-hex .yao{height:6px;gap:7px}
  .pair-row{gap:18px}
  .pair .cal-hex{width:48px;margin:8px 0 4px}
  .pair .cal-hex .yao{height:5px;gap:6px}
  .pair strong{font-size:15px}
  .card-range{font-size:11.5px}
  .chip-row{margin:9px 0 0}
  .scripture{grid-template-columns:1fr;gap:2px;padding:14px 0 16px}
  .cal-cell{min-height:44px}
  .cal-day{font-size:14px}
}

/* ---------- 月节：五日分节 + 逐日五行推演 ---------- */
.card-rule{margin:8px 0 0;font-size:10.5px;letter-spacing:.02em;line-height:1.55;color:var(--muted)}
.card-rule .derive{display:inline-block;margin-right:6px;padding:1px 5px;border:1px solid var(--rule);background:var(--paper-2);color:var(--red);font-size:9.5px;letter-spacing:.14em;text-indent:.14em}
.wuxing-row{display:grid;grid-template-columns:repeat(5,1fr);gap:4px;width:100%;margin:9px 0 0;padding:0;list-style:none}
.wuxing-day{display:flex;flex-direction:column;align-items:center;gap:1px;min-width:0;padding:4px 0 3px;border:1px solid var(--line);background:rgba(250,248,241,.72)}
.wuxing-day.current{border-color:var(--red);background:rgba(164,69,49,.08)}
.wd-day{font-size:10px;line-height:1.2;color:var(--muted);white-space:nowrap}
.wuxing-day.current .wd-day{color:var(--red)}
.wd-wuxing{font-size:14px;line-height:1.1}
.card-verse{margin:8px 0 0;font-size:11px;line-height:1.65;color:var(--muted)}

/* ---------- 日历格：短卦名 + 当日五行 ---------- */
.cal-sx{display:flex;align-items:baseline;justify-content:center;gap:3px;font-size:9px;line-height:1.2;color:var(--green)}
.cal-trigram{letter-spacing:.02em}
.cal-wuxing{color:var(--muted)}
.cal-cell.out .cal-sx{color:#c3c5bb}
.cal-cell.selected .cal-sx,.cal-cell.selected .cal-trigram,.cal-cell.selected .cal-wuxing{color:#c7cebe}

/* ---------- 黄历补充：默认折叠，只写日干支与纳音 ---------- */
.almanac-section{margin-top:12px;border:1px solid var(--rule);background:var(--paper-2)}
.almanac-section>summary{display:flex;align-items:center;gap:10px;padding:11px 16px;font-size:13px;letter-spacing:.06em;cursor:pointer;list-style:none}
.almanac-section>summary::-webkit-details-marker{display:none}
.almanac-section>summary::before{content:"▸";color:var(--red);font-size:11px;line-height:1;transition:transform .2s ease}
.almanac-section[open]>summary::before{transform:rotate(90deg)}
.almanac-section[open]>summary{border-bottom:1px solid var(--rule)}
.almanac-panel{padding:12px 16px 14px}
.al-row{display:flex;align-items:baseline;gap:14px;margin:0 0 6px}
.al-key{min-width:52px;font-size:11px;letter-spacing:.2em;text-indent:.2em;color:var(--muted)}
.al-value{font-size:17px;letter-spacing:.08em}
.al-note{margin:9px 0 0;font-size:10.5px;line-height:1.7;color:var(--muted)}

@media(max-width:600px){
  .card-rule{font-size:10px}
  .wd-wuxing{font-size:13px}
  .cal-sx{font-size:8.5px}
  .cal-cell{min-height:56px}
  .al-value{font-size:16px}
}