:root{
    --bg:#11110f; --bg-2:#16140f;
    --panel:rgba(255,255,255,.035); --panel-strong:rgba(255,255,255,.06);
    --line:rgba(201,164,76,.16); --line-soft:rgba(255,255,255,.08);
    --gold:#c9a44c; --gold-soft:#d8c27a; --warm:#ff9a6a; --warm-2:#ffbd8a;
    --peach:#fff4ea; --blue:#9db4ff; --blue-2:#b4c8ff; --green:#36a766; --green-2:#7ee0ae;
    --ink:#f7f7f6; --ink-dim:rgba(247,247,246,.62); --ink-faint:rgba(247,247,246,.4);
    --serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
    --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{background:var(--bg);color:var(--ink);font-family:var(--serif);line-height:1.75;
    -webkit-font-smoothing:antialiased;overflow-x:hidden}
  a{color:inherit;text-decoration:none}
  .wrap{max-width:1080px;margin:0 auto;padding:0 24px}

  .site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
    background:linear-gradient(180deg,rgba(17,17,15,.92),rgba(17,17,15,.5));border-bottom:1px solid var(--line-soft)}
  .top-nav{display:flex;align-items:center;justify-content:space-between;height:64px}
  .brand{font-weight:600;font-size:21px;letter-spacing:.2em;display:flex;align-items:center;gap:11px}
  .brand .seal{width:28px;height:28px;border-radius:7px;display:grid;place-items:center;
    background:linear-gradient(135deg,var(--gold),var(--warm));color:#1a160f;font-weight:700;font-size:15px;
    box-shadow:0 0 18px rgba(201,164,76,.45)}
  .nav-links{display:flex;gap:22px;font-family:var(--sans);font-size:14px;color:var(--ink-dim)}
  .nav-links a{position:relative;transition:color .25s}
  .nav-links a:hover{color:var(--ink)}
  .nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;height:1px;width:0;
    background:linear-gradient(90deg,var(--gold),transparent);transition:width .3s}
  .nav-links a:hover::after{width:100%}
  @media(max-width:860px){.nav-links{display:none}}

  .intro{position:relative;overflow:hidden;padding:96px 0 80px;text-align:center}
  .intro::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
    background:radial-gradient(60% 60% at 50% 30%,rgba(157,180,255,.10),transparent 70%)}
  .intro .wrap{position:relative;z-index:2}
  .eyebrow{font-family:var(--sans);font-size:13px;letter-spacing:.5em;color:var(--gold-soft);opacity:.8;margin-bottom:22px}
  .hero-title{font-size:clamp(32px,5.5vw,56px);font-weight:500;letter-spacing:.05em;text-shadow:0 2px 40px rgba(0,0,0,.5)}
  .hero-title em{font-style:normal;background:linear-gradient(100deg,var(--blue-2),var(--gold-soft));
    -webkit-background-clip:text;background-clip:text;color:transparent}
  .hero-sub{margin:26px auto 0;max-width:660px;color:var(--ink-dim);font-size:clamp(15px,2vw,17px)}
  .crumbs{margin-top:30px;font-family:var(--sans);font-size:12.5px;letter-spacing:.2em;color:var(--ink-faint)}
  .crumbs a:hover{color:var(--gold-soft)}

  .sec{padding:80px 0}
  .sec-head{text-align:center;margin-bottom:42px}
  .sec-head .kicker{font-family:var(--sans);font-size:12.5px;letter-spacing:.4em;color:var(--gold-soft);opacity:.75}
  .sec-head h2{font-size:clamp(24px,4vw,36px);font-weight:600;margin-top:14px;letter-spacing:.05em}
  .sec-head p{margin:14px auto 0;max-width:560px;color:var(--ink-dim);font-size:15.5px}

  /* ---- casting controls ---- */
  .cast{display:grid;grid-template-columns:1fr 1.1fr;gap:26px;align-items:start}
  @media(max-width:860px){.cast{grid-template-columns:1fr}}
  .panel{border:1px solid var(--line-soft);border-radius:18px;background:var(--panel);padding:24px 22px}
  .panel h3{font-family:var(--sans);font-size:13px;letter-spacing:.28em;color:var(--gold-soft);margin-bottom:18px}
  .field{margin-bottom:16px}
  .field label{display:block;font-family:var(--sans);font-size:13px;color:var(--ink-dim);margin-bottom:7px}
  .field input[type=text],.field input[type=date]{width:100%;padding:11px 13px;border-radius:10px;
    border:1px solid var(--line-soft);background:rgba(0,0,0,.25);color:var(--ink);font-family:var(--sans);font-size:14px}
  .field input:focus{outline:none;border-color:var(--gold)}
  .lunar-row{display:flex;gap:16px;flex-wrap:wrap}
  .chips{display:flex;flex-wrap:wrap;gap:9px}
  .chip{font-family:var(--sans);font-size:13px;padding:8px 15px;border-radius:22px;cursor:pointer;
    border:1px solid var(--line-soft);color:var(--ink-dim);background:rgba(0,0,0,.2);transition:.2s}
  .chip.on{color:#1a160f;background:linear-gradient(120deg,var(--gold),var(--warm));border-color:transparent;font-weight:600}
  .btn{width:100%;margin-top:8px;font-family:var(--sans);font-size:15px;letter-spacing:.1em;padding:14px 0;border-radius:12px;
    cursor:pointer;border:none;background:linear-gradient(120deg,var(--gold),var(--warm));color:#1a160f;font-weight:600;
    box-shadow:0 8px 30px rgba(255,154,106,.25);transition:.25s}
  .btn:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(255,154,106,.4)}
  .btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

  .coins{display:flex;gap:14px;justify-content:center;margin:8px 0 4px;min-height:64px;align-items:center}
  .coin{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;font-size:22px;
    border:2px solid var(--gold);background:radial-gradient(circle at 35% 30%,#2a2417,#15120c);color:var(--gold-soft);
    box-shadow:0 0 16px rgba(201,164,76,.3);transition:transform .2s}
  .coin.yang{color:var(--peach);border-color:var(--peach)}
  .coin.flip{animation:flip .4s ease}
  @keyframes flip{0%{transform:rotateY(0)}50%{transform:rotateY(180deg)}100%{transform:rotateY(360deg)}}
  .throw-info{text-align:center;font-family:var(--sans);font-size:13px;color:var(--ink-faint);min-height:20px}

  /* ---- hexagrams ---- */
  .hexes{display:flex;gap:30px;justify-content:center;align-items:flex-start;flex-wrap:wrap}
  .hex{text-align:center}
  .hex .hname{font-size:22px;font-weight:600;letter-spacing:.1em;margin-bottom:4px}
  .hex .hsub{font-family:var(--sans);font-size:12px;color:var(--ink-faint);margin-bottom:14px;letter-spacing:.1em}
  .lines{display:flex;flex-direction:column;gap:9px}
  .ln{position:relative;display:flex;align-items:center;gap:10px;justify-content:center}
  .bar{width:120px;height:14px;border-radius:3px;background:linear-gradient(90deg,var(--gold),var(--gold-soft))}
  .bar.yin{background:transparent}
  .bar.yin::before,.bar.yin::after{content:"";position:absolute;height:14px;border-radius:3px;
    background:linear-gradient(90deg,var(--gold),var(--gold-soft))}
  .bar.yin::before{left:50%;width:48px;margin-left:-60px}
  .bar.yin::after{left:50%;width:48px;margin-left:12px}
  .ln .mark{position:absolute;right:-30px;font-family:var(--sans);font-size:13px;color:var(--warm-2);font-weight:700}
  .ln .pos{position:absolute;left:-30px;font-family:var(--sans);font-size:12px;color:var(--ink-faint)}

  /* ---- installation table ---- */
  .install{margin-top:34px;border:1px solid var(--line-soft);border-radius:18px;overflow:hidden}
  table{width:100%;border-collapse:collapse;font-family:var(--sans);font-size:13.5px}
  th,td{padding:11px 10px;text-align:center;border-bottom:1px solid var(--line-soft)}
  th{background:rgba(201,164,76,.08);color:var(--gold-soft);font-weight:600;letter-spacing:.06em;font-size:12.5px}
  td .gan{color:var(--peach)} td .zhi{color:var(--blue-2)}
  .shi{color:var(--green-2);font-weight:700} .ying{color:var(--warm-2);font-weight:700}
  .dong{color:var(--warm);font-weight:700}
  tr.use td{background:rgba(255,154,106,.07)}
  .use-tag{display:inline-block;font-size:11px;color:var(--warm-2);border:1px solid rgba(255,154,106,.4);border-radius:10px;padding:1px 8px;margin-left:6px}

  .reading{margin-top:30px;display:grid;grid-template-columns:1fr 1fr;gap:22px}
  @media(max-width:760px){.reading{grid-template-columns:1fr}}
  .reading .panel h4{font-family:var(--sans);font-size:12.5px;letter-spacing:.2em;color:var(--gold-soft);margin-bottom:12px}
  .reading p{color:var(--ink-dim);font-size:14.5px;margin-bottom:10px}
  .reading b{color:var(--peach)}

  .site-footer{border-top:1px solid var(--line-soft);padding:40px 0 56px;color:var(--ink-faint);
    font-family:var(--sans);font-size:13px}
  .site-footer .wrap{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center}
  .site-footer .flinks{display:flex;gap:20px;flex-wrap:wrap}
  .site-footer a:hover{color:var(--gold-soft)}
  .disclaimer{font-size:11.5px;opacity:.6;max-width:620px;margin-top:14px;line-height:1.6}