:root{
  --bg:#f7f8fa; --card:#ffffff; --ink:#1f2430; --muted:#6b7280;
  --line:#e7e9ee; --accent:#2E7D32; --shadow:0 1px 3px rgba(16,24,40,.06),0 8px 24px rgba(16,24,40,.06);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:880px;margin:0 auto;padding:32px 20px 64px}
header h1{font-size:26px;margin:0 0 6px;letter-spacing:-.3px}
header p{margin:0;color:var(--muted);font-size:15px}
.lead{color:var(--muted);font-size:16px;margin:0 0 18px}
.accent-bar{height:4px;border-radius:4px;background:var(--accent);margin:14px 0 24px;transition:background .25s}

.panel{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:20px;margin-bottom:22px}
.controls{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.controls input[type=date]{font-size:15px;padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}
.btn{border:1px solid var(--line);background:#fff;color:var(--ink);padding:9px 14px;border-radius:10px;cursor:pointer;font-size:14px;transition:.15s;text-decoration:none;display:inline-block}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn.primary:hover{filter:brightness(.95);color:#fff}

.result{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:18px}
.daychip{display:flex;flex-direction:column;align-items:center;justify-content:center;
  width:96px;height:96px;border-radius:20px;color:#fff;flex:0 0 auto;box-shadow:var(--shadow)}
.daychip .cn{font-size:40px;line-height:1;font-weight:600}
.daychip .en{font-size:12px;opacity:.92;margin-top:4px}
.daychip.big{width:120px;height:120px;border-radius:24px}
.daychip.big .cn{font-size:52px}
.daychip.big .en{font-size:14px}
.daymeta{flex:1 1 220px;min-width:200px}
.daymeta .date{font-size:18px;font-weight:600}
.daymeta .ganzhi{color:var(--muted);font-size:14px;margin-top:2px}
.daymeta .sub{color:var(--muted);font-size:13px;margin-top:6px}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.cat{border:1px solid var(--line);border-radius:14px;padding:14px;background:#fff;position:relative;overflow:hidden}
.cat .stripe{position:absolute;left:0;top:0;bottom:0;width:6px}
.cat .rank{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.4px}
.cat .name{font-size:16px;font-weight:600;margin:2px 0 2px}
.cat .name .cn{color:var(--muted);font-weight:400;font-size:13px;margin-left:6px}
.cat .rel{font-size:12px;color:var(--muted);margin-bottom:10px}
.swatches{display:flex;flex-wrap:wrap;gap:8px}
.sw{display:flex;align-items:center;gap:7px;font-size:12px}
.sw .dot{width:22px;height:22px;border-radius:6px;border:1px solid rgba(0,0,0,.08)}
.sw .hx{color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}

details{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:4px 20px;box-shadow:var(--shadow)}
details summary{cursor:pointer;font-weight:600;padding:14px 0;outline:none}
details .body{padding:0 0 16px;color:var(--muted);font-size:14px}
details .body ul{margin:8px 0 0;padding-left:18px}
.cycle{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.cycle span{background:#f0f2f5;border-radius:8px;padding:5px 10px;font-size:13px}

/* Result page specific */
.back{display:inline-block;color:var(--muted);font-size:14px;text-decoration:none;margin-bottom:14px}
.back:hover{color:var(--accent)}
.result-hero{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-bottom:8px}
.result-hero h1{font-size:30px;margin:0 0 6px}
.share-line{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin:14px 0 22px;font-size:14px;display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.cta{display:inline-block;background:var(--accent);color:#fff;padding:12px 20px;border-radius:12px;font-weight:600;text-decoration:none}
.cta:hover{filter:brightness(.95);text-decoration:none;color:#fff}
.explain{font-size:14px;color:var(--muted)}
.explain ul{margin:8px 0 0;padding-left:18px}

/* Content pages */
h2{font-size:22px;margin:34px 0 10px}
h3{font-size:17px;margin:22px 0 6px}
p{margin:0 0 14px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
table{width:100%;border-collapse:collapse;margin:14px 0;font-size:14px}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left}
th{background:#f0f2f5}
.faq{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:8px 22px;margin-top:14px}
.faq h3{margin:18px 0 4px;font-size:16px}
.faq p{color:#374151;margin:0 0 16px}
.guides{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:14px 22px;margin:22px 0}
.guides-title{font-weight:600;margin:0 0 8px;font-size:14px}
.guides ul{margin:0;padding-left:18px;columns:2;font-size:14px}
.note{color:var(--muted);font-size:13px;margin-top:28px;border-top:1px solid var(--line);padding-top:16px}
footer{color:var(--muted);font-size:12px;text-align:center;margin-top:26px}
.foot-note{margin:14px 0 0;font-size:11px;opacity:.8}
.cta-banner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;background:linear-gradient(135deg,#f0f9f1,#e6f4ea);border:1px solid #cfe6d4;border-radius:14px;padding:16px 20px;margin-top:8px;text-align:left}
.cta-banner .cta-text{display:flex;flex-direction:column;gap:2px}
.cta-banner .cta-text strong{font-size:15px;color:#1f3d27}
.cta-banner .cta-text span{font-size:12.5px;color:#4a5a4f}
.cta-btn{display:inline-block;background:var(--accent);color:#fff;padding:11px 18px;border-radius:11px;font-weight:600;text-decoration:none;white-space:nowrap;transition:filter .15s}
.cta-btn:hover{filter:brightness(1.08)}

/* Upcoming-days forecast */
.forecast{margin:26px 0 8px}
.forecast-title{font-size:18px;margin:0 0 4px}
.forecast-sub{color:var(--muted);font-size:13px;margin:0 0 14px}
.forecast-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px}
.fc-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:16px;text-decoration:none;color:var(--ink);transition:.15s}
.fc-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.fc-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.fc-when{font-weight:600;font-size:15px}
.fc-chip{width:34px;height:34px;border-radius:10px;color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;flex:0 0 auto}
.fc-daymeta{color:var(--muted);font-size:12.5px;margin:6px 0 12px}
.fc-rows{display:flex;flex-direction:column;gap:8px}
.fc-row{display:flex;align-items:flex-start;gap:10px}
.fc-tag{flex:0 0 96px;font-size:11px;font-weight:600;padding:3px 6px;border-radius:8px;text-align:center;white-space:nowrap}
.fc-tag.best{background:#e6f4ea;color:#1f6b34}
.fc-tag.good{background:#eaf2fb;color:#1c5f9e}
.fc-tag.avoid{background:#fdeaea;color:#b3261e}
.fc-colors{display:flex;align-items:center;flex-wrap:wrap;gap:6px;padding-top:3px}
.fc-dot{width:14px;height:14px;border-radius:50%;border:1px solid rgba(0,0,0,.12);display:inline-block}
.fc-names{font-size:12px;color:var(--muted)}
.fc-link{display:inline-block;margin-top:12px;font-size:12.5px;color:var(--accent);font-weight:600}
.error{text-align:center;padding:80px 20px}
.error h1{font-size:28px}
@media(max-width:560px){
  header h1{font-size:22px}.daychip{width:80px;height:80px}.daychip .cn{font-size:34px}
  .guides ul{columns:1}
  .wrap{max-width:100%}
}