:root{
  --bg:#f7f2e9; --panel:#fffdf8; --ink:#2b241d; --muted:#8a7c69;
  --red:#c1352b; --red-d:#9c2a21; --gold:#c79a3c; --green:#5b7d52;
  --line:#e7dcc6; --soft:#f3ebd9; --shadow:0 2px 12px rgba(120,90,40,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  line-height:1.7;
  background-image:
    radial-gradient(circle at 10% 12%, rgba(193,53,43,.05), transparent 40%),
    radial-gradient(circle at 90% 6%, rgba(199,154,60,.06), transparent 38%);
}
a{color:var(--red);text-decoration:none}
.hp{position:absolute;left:-9999px;top:-9999px;width:1px;height:1px;overflow:hidden}

/* 顶栏 */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 26px; background:rgba(255,253,248,.9); backdrop-filter:blur(8px);
  border-bottom:2px solid var(--red); position:sticky; top:0; z-index:20;
}
.brand{display:flex;align-items:center;gap:10px}
.brand-text{font-weight:800;font-size:19px;letter-spacing:.5px;display:flex;flex-direction:column;line-height:1.05;
  font-family:"STKaiti","KaiTi","Kaiti SC","Songti SC",serif;}
.brand-text small{font-weight:500;font-size:11px;color:var(--muted);letter-spacing:2px}
.nav a{margin-left:18px;font-size:14px;color:var(--muted);font-weight:600}
.nav a:hover{color:var(--red)}

/* 主视觉 */
.hero{
  display:block;max-width:1080px;margin:32px auto;padding:0 26px;
}
.hero-copy h1{
  font-family:"STKaiti","KaiTi","Kaiti SC","Songti SC",serif;font-size:40px;line-height:1.18;
  margin:0 0 12px;color:var(--ink);
}
.lede{color:var(--muted);font-size:15.5px;margin:0 0 18px;max-width:560px}
.lede strong{color:var(--red-d)}

.seg{display:inline-flex;border:1px solid var(--line);background:#fff;border-radius:10px;padding:4px;gap:4px;margin-bottom:16px}
.seg label{cursor:pointer}
.seg input{position:absolute;opacity:0;width:0;height:0}
.seg span{
  display:inline-block;padding:8px 18px;border-radius:7px;font-weight:700;font-size:14px;color:var(--muted);
  transition:.18s;
}
.seg input:checked + span{background:var(--red);color:#fff;box-shadow:0 3px 10px rgba(193,53,43,.28)}

.query-row{display:flex;gap:10px;align-items:stretch}
#input{
  flex:1;resize:vertical;font-size:16px;padding:12px 14px;border:1px solid var(--line);
  border-radius:10px;background:var(--soft);color:var(--ink);font-family:inherit;outline:none;
}
#input:focus{border-color:var(--red);background:#fff;box-shadow:0 0 0 3px rgba(193,53,43,.12)}
.qbtn{
  border:0;background:var(--red);color:#fff;font-weight:800;font-size:16px;letter-spacing:3px;
  padding:0 22px;border-radius:10px;cursor:pointer;box-shadow:0 4px 12px rgba(193,53,43,.26);transition:.15s;
}
.qbtn:hover{filter:brightness(1.06)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chip{
  border:1px solid var(--line);background:#fff;color:var(--red-d);font-size:13px;font-weight:600;
  padding:6px 12px;border-radius:999px;cursor:pointer;transition:.15s;
}
.chip:hover{border-color:var(--red);background:var(--soft);transform:translateY(-1px)}

/* 结果 */
.result{max-width:1080px;margin:10px auto 30px;padding:22px 26px;background:var(--panel);
  border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.result-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.result-head h2{margin:0;font-size:20px;font-family:"STKaiti","KaiTi",serif}
.shield{display:none;font-size:12px;color:var(--red);background:#fbe9e7;padding:3px 10px;border-radius:8px}
.ipa-line-wrap{display:flex;gap:12px;align-items:flex-start;background:var(--soft);
  border:1px dashed var(--line);border-radius:10px;padding:16px;margin-bottom:16px}
.ipa-line{flex:1;font-family:"Charis SIL","Doulos SIL","Noto Serif",serif;font-size:25px;
  letter-spacing:.5px;color:var(--red-d);word-break:break-word;line-height:1.5}
.copy{border:1px solid var(--red);background:#fff;color:var(--red-d);font-weight:700;
  padding:8px 16px;border-radius:8px;cursor:pointer;white-space:nowrap}
.copy:disabled{opacity:.4;cursor:not-allowed}
.copy:not(:disabled):hover{background:var(--red);color:#fff}
.table-wrap{overflow-x:auto}
.chartable{width:100%;border-collapse:collapse;font-size:15px}
.chartable th,.chartable td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--line)}
.chartable th{color:var(--muted);font-weight:700;background:var(--soft);font-size:13px}
.chartable .zh{font-size:20px;font-weight:700}
.chartable .py{color:var(--green);font-weight:600}
.chartable .ip{font-family:"Charis SIL","Doulos SIL",serif;color:var(--red-d);font-size:17px}
.chartable .cat{color:var(--muted)}
.unmatched{margin-top:12px;font-size:13px;color:var(--red);background:#fbe9e7;
  padding:8px 12px;border-radius:10px;display:inline-block}

/* 区块 */
.block{max-width:1080px;margin:34px auto;padding:0 26px}
.sec-title{display:flex;align-items:center;gap:10px;font-size:22px;margin:0 0 6px;
  font-family:"STKaiti","KaiTi",serif}
.sec-title .dot{width:12px;height:12px;border-radius:3px;background:var(--red)}
.sec-note{color:var(--muted);font-size:14.5px;margin:6px 0 18px}
.sec-note strong{color:var(--red-d)}

.archive{background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:20px 22px;box-shadow:var(--shadow)}
.archive h3{margin:0 0 12px;font-size:20px;font-family:"STKaiti","KaiTi",serif}
.archive h3 .sub{font-size:12px;color:var(--muted);font-weight:500;margin-left:8px;letter-spacing:1px}
.tones{width:100%;border-collapse:collapse;margin-bottom:14px}
.tones th,.tones td{padding:8px 10px;border-bottom:1px solid var(--line);font-size:14px;text-align:left}
.tones th{color:var(--muted);background:var(--soft);font-size:12px}
.tones .ip{font-family:"Charis SIL",serif;font-size:18px;color:var(--red-d)}
.notes{margin:0;padding-left:18px;color:var(--muted);font-size:14px}
.notes li{margin:4px 0}

.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.feat{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;box-shadow:var(--shadow)}
.feat b{color:var(--red-d);font-size:15px}
.feat p{margin:6px 0 0;color:var(--muted);font-size:13.5px}

.word-grid{display:flex;flex-wrap:wrap;gap:10px}
.exword{border:1px solid var(--line);background:var(--panel);padding:10px 16px;border-radius:10px;
  cursor:pointer;font-size:15px;font-weight:600;color:var(--ink);transition:.15s;box-shadow:var(--shadow)}
.exword:hover{border-color:var(--red);color:var(--red-d);transform:translateY(-2px)}

.about-body{background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:20px 24px;box-shadow:var(--shadow);font-size:14.5px;color:#473c30}
.about-body p{margin:0 0 12px}
.about-body strong{color:var(--red-d)}
.about-body .fine{color:var(--muted);font-size:12.5px;margin:0;border-top:1px dashed var(--line);padding-top:10px}

.foot{text-align:center;color:var(--muted);font-size:13px;padding:30px 20px 40px;border-top:2px solid var(--red);margin-top:20px}
.foot-sub{display:block;margin-top:4px;letter-spacing:2px;font-size:11px}

@media (max-width:780px){
  .hero-copy h1{font-size:32px}
  .nav{display:none}
  .ipa-line{font-size:21px}
}