:root {
  --cream: #FCFCF2;
  --orange: #F05828;
  --orange-deep: #F05424;
  --orange-bright: #F35B29;
  --red: #E43C30;
  --gold: #FCAF43;
  --gray-blue: #7B8898;
  --ink: #2A2E32;
  --ink-soft: #4A5560;
  --line: #E6E4D6;
  --card: #FFFEF8;
  --ok: #2F7D4A;
  --shadow: 0 10px 30px rgba(42, 46, 50, 0.06);
  --radius: 16px;
  --font: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background:
    radial-gradient(1200px 400px at 50% -120px, rgba(252, 175, 67, 0.16), transparent 60%),
    var(--cream);
  color: var(--ink);
  min-height: 100vh;
  line-height: 1.65;
}

a { color: var(--orange-deep); text-decoration: none; }
a:hover { color: var(--red); }

.wrap { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }

.site-header {
  background: rgba(255, 254, 248, 0.92);
  border-bottom: 3px solid var(--gold);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 0;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  min-width: 220px;
}
.brand img, .emblem {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 0 2px var(--gold);
}
.brand-text strong {
  display: block;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
}
.brand-text span {
  display: block;
  color: var(--gray-blue);
  font-size: 0.78rem;
}
.nav {
  display: flex;
  gap: 6px;
  flex: 1;
  flex-wrap: wrap;
}
.nav a {
  color: var(--ink-soft);
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 600;
}
.nav a:hover, .nav a.active {
  background: rgba(240, 88, 40, 0.1);
  color: var(--orange);
}
.user-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--gray-blue);
  font-size: 0.9rem;
  margin-left: auto;
}
.user-chip b { color: var(--ink); font-weight: 600; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  padding: 9px 16px;
  font: inherit;
  font-weight: 650;
  background: var(--orange);
  color: #fff;
  box-shadow: 0 6px 16px rgba(240, 88, 40, 0.22);
}
.btn:hover { background: var(--red); color: #fff; }
.btn.secondary {
  background: #fff;
  color: var(--ink);
  box-shadow: none;
  border: 1px solid var(--line);
}
.btn.secondary:hover { border-color: var(--gray-blue); color: var(--ink); }
.btn.gold {
  background: var(--gold);
  color: #4a2d00;
  box-shadow: 0 6px 16px rgba(252, 175, 67, 0.28);
}
.btn.gold:hover { filter: brightness(0.96); color: #4a2d00; }
.btn.danger { background: var(--red); }
.btn.ghost { background: transparent; color: var(--gray-blue); box-shadow: none; }
.btn.small { padding: 6px 12px; font-size: 0.88rem; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.page { padding: 28px 0 64px; }
.page-title {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.page-title h1 { margin: 0; font-size: 1.6rem; }
.page-title p { margin: 4px 0 0; color: var(--gray-blue); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 22px;
}
.grid { display: grid; gap: 16px; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.stat {
  padding: 16px 18px;
}
.stat .num { font-size: 1.8rem; color: var(--orange); font-weight: 700; }
.stat .lbl { color: var(--gray-blue); font-size: 0.9rem; }

label { display: block; font-weight: 650; margin: 0 0 6px; }
.hint { color: var(--gray-blue); font-weight: 400; font-size: 0.86rem; }
input[type="text"], input[type="password"], input[type="number"], input[type="file"], select, textarea {
  width: 100%;
  font: inherit;
  padding: 10px 12px;
  border: 1px solid #d9d6c8;
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(240, 88, 40, 0.35);
  border-color: var(--orange);
}
.field { margin-bottom: 14px; }
.inline-fields { display: flex; gap: 12px; flex-wrap: wrap; }
.inline-fields .field { flex: 1; min-width: 160px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--gray-blue); font-size: 0.86rem; font-weight: 650; border-bottom: 2px solid var(--gold); }
tr.latest { background: rgba(252, 175, 67, 0.14); }
.muted { color: var(--gray-blue); }
.ok { color: var(--ok); font-weight: 650; }
.bad { color: var(--red); font-weight: 650; }
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.78rem;
  background: rgba(123, 136, 152, 0.12);
  color: var(--gray-blue);
}
.tag.on { background: rgba(47, 125, 74, 0.12); color: var(--ok); }
.tag.off { background: rgba(228, 60, 48, 0.1); color: var(--red); }

.flashes { width: min(1120px, calc(100% - 32px)); margin: 16px auto 0; display: grid; gap: 8px; }
.flash {
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
}
.flash.success { border-color: #b7dbc4; background: #f3faf5; color: #215c36; }
.flash.error { border-color: #f3c1bd; background: #fff5f4; color: #9b2119; }
.flash.info { border-color: #f3d19a; background: #fff8ec; color: #7a4d10; }

.login-body { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card {
  width: min(440px, 100%);
  background: var(--card);
  border-radius: 24px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 36px 32px 28px;
  text-align: center;
}
.login-card .emblem { width: 108px; height: 108px; margin: 0 auto 12px; box-shadow: 0 0 0 3px var(--gold), 0 8px 24px rgba(240, 88, 40, 0.15); }
.login-card h1 { margin: 8px 0 0; letter-spacing: 0.18em; }
.login-card .school { color: var(--gray-blue); margin: 4px 0 24px; }
.login-card form { text-align: left; }
.login-card .btn { width: 100%; margin-top: 8px; padding: 12px; }
.login-foot { margin-top: 18px; color: var(--gray-blue); font-size: 0.82rem; }

.word-editor { display: grid; gap: 8px; }
.word-row { display: flex; gap: 8px; align-items: center; }
.word-row input { flex: 1; }
.word-row .idx { width: 2.2rem; color: var(--gray-blue); text-align: right; }
.check-list { display: grid; gap: 8px; }
.check-list label { font-weight: 500; display: flex; gap: 8px; align-items: center; }

.play-stage {
  min-height: 58vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px 12px 40px;
}
.play-progress { color: var(--gray-blue); letter-spacing: 0.08em; }
.play-num {
  font-size: clamp(4.5rem, 18vw, 8rem);
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
  margin: 10px 0;
}
.play-count {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 6px solid var(--gold);
  display: grid;
  place-items: center;
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--ink);
  margin: 10px auto 22px;
  background: #fff;
}
.play-status { color: var(--ink-soft); min-height: 2em; }
.play-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }

.grade-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.grade-word { font-size: 1.25rem; font-weight: 700; letter-spacing: 0.12em; }
.seg { display: flex; gap: 8px; }
.seg input { display: none; }
.seg label {
  margin: 0;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  cursor: pointer;
  font-weight: 650;
  background: #fff;
}
.seg input:checked + label.okish { background: rgba(47, 125, 74, 0.12); border-color: var(--ok); color: var(--ok); }
.seg input:checked + label.badish { background: rgba(228, 60, 48, 0.1); border-color: var(--red); color: var(--red); }

.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.note {
  white-space: pre-wrap;
  background: #fff8ec;
  border: 1px solid #f3d19a;
  border-radius: 12px;
  padding: 12px 14px;
  color: #7a4d10;
  font-size: 0.92rem;
}
.form-row-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.site-footer {
  color: var(--gray-blue);
  text-align: center;
  padding: 8px 16px 28px;
  font-size: 0.82rem;
}
details.inline { display: inline-block; }
details.inline summary { cursor: pointer; list-style: none; }
details.box { margin-top: 8px; }

@media (max-width: 800px) {
  .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; }
  .header-inner { align-items: flex-start; }
  .user-chip { margin-left: 60px; }
  .grade-item { flex-direction: column; align-items: flex-start; }
}