:root {
  --bg: #f4f6fb;
  --bg-soft: #eaeef7;
  --card: #ffffff;
  --ink: #101828;
  --ink-2: #475467;
  --ink-3: #98a2b3;
  --line: #e4e7ec;
  --line-2: #d0d5dd;
  --brand: #3538cd;
  --brand-2: #6172f3;
  --brand-soft: #eef4ff;
  --ok: #12b76a;
  --ok-soft: #ecfdf3;
  --warn: #f79009;
  --warn-soft: #fffaeb;
  --bad: #f04438;
  --bad-soft: #fef3f2;
  --rec: #e31b54;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 12px 32px -12px rgba(16, 24, 40, 0.18);
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", -apple-system,
    BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

button { font-family: inherit; }

.screen { display: none; }
.screen.active { display: block; }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 20px 80px;
}

/* ---------------- 顶部 ---------------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.brand-badge {
  width: 30px; height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff;
  display: grid; place-items: center;
  font-size: 13px; font-weight: 800;
}

.topbar .spacer { flex: 1; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  background: var(--bg-soft);
  color: var(--ink-2);
  white-space: nowrap;
}
.pill.ok { background: var(--ok-soft); color: #027a48; }
.pill.bad { background: var(--bad-soft); color: #b42318; }
.pill.warn { background: var(--warn-soft); color: #b54708; }
.pill.brand { background: var(--brand-soft); color: var(--brand); }

/* ---------------- 通用组件 ---------------- */

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 22px;
}
.card + .card { margin-top: 16px; }

h1 { font-size: 26px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
h2 { font-size: 19px; font-weight: 700; letter-spacing: -0.01em; margin: 0 0 12px; }
h3 { font-size: 16px; font-weight: 700; margin: 0 0 8px; }
p { margin: 0 0 10px; color: var(--ink-2); }
.muted { color: var(--ink-3); font-size: 13px; }

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.08s ease, background 0.15s ease, box-shadow 0.15s ease;
  background: var(--brand);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn:hover:not(:disabled) { background: #2b2eb0; }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.ghost { background: #fff; color: var(--ink); border-color: var(--line-2); }
.btn.ghost:hover:not(:disabled) { background: var(--bg-soft); }
.btn.danger { background: var(--bad); }
.btn.danger:hover:not(:disabled) { background: #d92d20; }
.btn.lg { padding: 14px 30px; font-size: 16.5px; border-radius: 12px; }
.btn.sm { padding: 6px 12px; font-size: 13px; }

.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
.row.between { justify-content: space-between; }

input[type="text"], select {
  font-family: inherit;
  font-size: 15px;
  padding: 10px 13px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  outline: none;
  min-width: 0;
}
input[type="text"]:focus, select:focus { border-color: var(--brand-2); box-shadow: 0 0 0 3px rgba(97, 114, 243, 0.16); }

/* ---------------- 首页 ---------------- */

.hero {
  background: linear-gradient(150deg, #1b1f4b 0%, #3538cd 55%, #6172f3 100%);
  border-radius: 22px;
  color: #fff;
  padding: 38px 34px;
  box-shadow: 0 24px 48px -24px rgba(53, 56, 205, 0.55);
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -80px; top: -80px;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.22), transparent 70%);
}
.hero h1 { color: #fff; font-size: 30px; margin-bottom: 10px; }
.hero p { color: rgba(255, 255, 255, 0.86); max-width: 720px; margin-bottom: 0; }
.hero .row { margin-top: 22px; }
.hero .btn.ghost { background: rgba(255,255,255,0.14); color: #fff; border-color: rgba(255,255,255,0.34); }
.hero .btn.ghost:hover:not(:disabled) { background: rgba(255,255,255,0.24); }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-top: 22px;
}
.stat {
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 13px;
  padding: 12px 15px;
}
.stat .k { font-size: 12px; color: rgba(255,255,255,0.75); }
.stat .v { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; }

table.spec {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
table.spec th, table.spec td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.spec th {
  font-size: 12.5px;
  text-transform: none;
  color: var(--ink-3);
  font-weight: 600;
  background: #fafbfc;
}
table.spec tr:last-child td { border-bottom: 0; }
table.spec td.num { font-variant-numeric: tabular-nums; font-weight: 700; white-space: nowrap; }
table.spec tfoot td { font-weight: 800; background: #fafbfc; }

/* ---------------- 考试界面 ---------------- */

.exam-grid {
  display: grid;
  grid-template-columns: 208px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}
@media (max-width: 860px) {
  .exam-grid { grid-template-columns: 1fr; }
  .nav-card { position: static !important; }
}

.nav-card {
  position: sticky;
  top: 72px;
  padding: 16px;
}
.nav-part { margin-bottom: 14px; }
.nav-part:last-child { margin-bottom: 0; }
.nav-part .t {
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-3);
  margin-bottom: 7px;
  display: flex;
  justify-content: space-between;
}
.dots { display: flex; flex-wrap: wrap; gap: 6px; }
.dot {
  width: 30px; height: 30px;
  border-radius: 9px;
  border: 1px solid var(--line-2);
  background: #fff;
  color: var(--ink-2);
  font-size: 12.5px;
  font-weight: 700;
  display: grid; place-items: center;
  transition: all 0.15s ease;
}
.dot.done { background: var(--ok-soft); border-color: #a6f4c5; color: #027a48; }
.dot.active { background: var(--brand); border-color: var(--brand); color: #fff; box-shadow: 0 0 0 3px rgba(97,114,243,0.2); }
.dot.pending { opacity: 0.72; }

.stage {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.stage-head {
  padding: 14px 20px;
  background: linear-gradient(180deg, #fbfcfe, #f6f8fc);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.stage-head .idx {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.stage-head .ttl { font-weight: 700; font-size: 15.5px; }
.stage-head .spacer { flex: 1; }

.stage-body { padding: 22px; }

.instruction {
  background: var(--warn-soft);
  border-left: 3px solid var(--warn);
  border-radius: 0 10px 10px 0;
  padding: 12px 15px;
  font-size: 14.5px;
  color: #7a2e0e;
  margin-bottom: 18px;
  line-height: 1.7;
}

.passage {
  font-family: Georgia, "Times New Roman", "Songti SC", serif;
  font-size: 19px;
  line-height: 2.05;
  color: #1d2939;
  letter-spacing: 0.005em;
  background: #fcfcfd;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 22px;
  white-space: pre-wrap;
}
.passage .w { border-radius: 4px; padding: 0 1px; transition: background 0.2s; }
.passage .w.hit { background: #d1fadf; }
.passage .w.miss { background: #fee4e2; text-decoration: underline wavy var(--bad); }

.script-box {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16.5px;
  line-height: 1.9;
  background: #fcfcfd;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
}
.script-box .line { display: block; }
.script-box .spk { font-weight: 700; color: var(--brand); margin-right: 8px; font-family: inherit; }

.qlist { display: flex; flex-direction: column; gap: 12px; }
.qitem {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
.qitem.active { border-color: var(--brand-2); box-shadow: 0 0 0 3px rgba(97,114,243,0.14); background: #fdfdff; }
.qitem.done { background: #fbfefc; border-color: #d3f8df; }
.qitem .qh { display: flex; gap: 10px; align-items: baseline; }
.qitem .qn {
  font-size: 12px; font-weight: 800; color: #fff; background: var(--brand);
  min-width: 22px; height: 22px; border-radius: 7px; display: grid; place-items: center; padding: 0 6px;
  flex: none; margin-top: 2px;
}
.qitem.done .qn { background: var(--ok); }
.qitem .qt { font-size: 16px; font-weight: 600; font-family: Georgia, serif; }
.opts { display: flex; flex-wrap: wrap; gap: 7px; margin: 9px 0 0 32px; }
.opt {
  font-size: 13.5px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--ink-2);
  border: 1px solid transparent;
  font-family: Georgia, serif;
}
.opt.picked { background: var(--ok-soft); color: #027a48; border-color: #a6f4c5; font-weight: 700; }

.outline {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.outline li {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  background: #fcfcfd;
  border: 1px solid var(--line);
  border-left: 3px solid var(--brand-2);
  border-radius: 0 10px 10px 0;
  padding: 10px 14px;
  font-size: 14.5px;
}
.outline li .n {
  font-weight: 800; color: var(--brand); font-size: 12px;
  background: var(--brand-soft); border-radius: 6px; padding: 1px 7px; flex: none; margin-top: 2px;
}

.cnq {
  font-size: 20px;
  font-weight: 700;
  color: #101828;
  background: var(--brand-soft);
  border: 1px solid #d1e0ff;
  border-radius: 12px;
  padding: 16px 18px;
}

/* ---------------- 录音面板 ---------------- */

.recpanel {
  margin-top: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, #fbfcfe, #f7f9fc);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.recpanel.live { border-color: #fda29b; background: linear-gradient(180deg, #fffbfa, #fef3f2); }

.rec-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 14.5px;
  color: var(--ink-2);
}
.rec-badge .lamp {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--ink-3);
}
.rec-badge.on { color: var(--rec); }
.rec-badge.on .lamp { background: var(--rec); animation: pulse 1.15s ease-in-out infinite; }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(227, 27, 84, 0.55); }
  50% { box-shadow: 0 0 0 9px rgba(227, 27, 84, 0); }
}

.timer {
  font-variant-numeric: tabular-nums;
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-family: var(--mono);
  color: var(--ink);
  line-height: 1;
}
.timer.warn { color: var(--warn); }
.timer.crit { color: var(--bad); }

.meter { flex: 1; min-width: 160px; }
.meter .bar {
  height: 9px;
  border-radius: 999px;
  background: var(--bg-soft);
  overflow: hidden;
}
.meter .bar > i {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--ok), #32d583);
  transition: width 0.07s linear;
}
.meter .lbl { font-size: 11.5px; color: var(--ink-3); margin-top: 5px; display: flex; justify-content: space-between; }

.wave {
  display: flex; align-items: flex-end; gap: 3px; height: 34px; flex: 1; min-width: 120px;
}
.wave i {
  flex: 1; background: var(--brand-2); border-radius: 2px; height: 6%;
  transition: height 0.09s ease-out; opacity: 0.85;
}

/* ---------------- 报告 ---------------- */

.score-hero {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
}
@media (max-width: 760px) { .score-hero { grid-template-columns: 1fr; } }

.gauge { text-align: center; }
.gauge .num {
  font-size: 76px;
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.gauge .of { font-size: 22px; color: var(--ink-3); font-weight: 700; }
.gauge .grade {
  display: inline-block; margin-top: 10px;
  padding: 5px 16px; border-radius: 999px; font-weight: 700; font-size: 14px;
  background: var(--brand-soft); color: var(--brand);
}
.ring { transform: rotate(-90deg); }
.ring .track { stroke: var(--bg-soft); }
.ring .fill { stroke-linecap: round; transition: stroke-dashoffset 1s cubic-bezier(.22,1,.36,1); }

.brk { display: flex; flex-direction: column; gap: 11px; }
.brk-row { display: grid; grid-template-columns: 116px 1fr 76px; gap: 12px; align-items: center; font-size: 14px; }
.brk-row .nm { font-weight: 600; color: var(--ink-2); }
.brk-row .track { height: 22px; background: var(--bg-soft); border-radius: 7px; overflow: hidden; }
.brk-row .track > i {
  display: block; height: 100%; border-radius: 7px;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  width: 0; transition: width 1s cubic-bezier(.22,1,.36,1);
}
.brk-row .sc { text-align: right; font-variant-numeric: tabular-nums; font-weight: 800; }
.brk-row .sc span { color: var(--ink-3); font-weight: 600; font-size: 12.5px; }

.kv { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 10px; }
.kv .box {
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 11px 14px;
  background: #fcfcfd;
}
.kv .box .k { font-size: 12px; color: var(--ink-3); }
.kv .box .v { font-weight: 700; font-size: 14.5px; margin-top: 2px; }

.dim { border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; background: #fcfcfd; }
.dim + .dim { margin-top: 10px; }
.dim .h { display: flex; justify-content: space-between; gap: 12px; font-weight: 700; font-size: 14.5px; margin-bottom: 6px; }
.dim .h .s { font-variant-numeric: tabular-nums; color: var(--brand); }
.dim .c { font-size: 13.5px; color: var(--ink-2); line-height: 1.7; }

ul.tips { margin: 6px 0 0; padding-left: 20px; }
ul.tips li { margin-bottom: 5px; font-size: 14px; color: var(--ink-2); }

.tag {
  display: inline-block; font-size: 12px; font-weight: 700;
  padding: 2px 9px; border-radius: 999px; margin-right: 6px;
  background: var(--bg-soft); color: var(--ink-2);
}
.tag.ok { background: var(--ok-soft); color: #027a48; }
.tag.bad { background: var(--bad-soft); color: #b42318; }
.tag.warn { background: var(--warn-soft); color: #b54708; }

.wordchip {
  display: inline-block;
  font-family: var(--mono);
  font-size: 13px;
  padding: 3px 10px;
  border-radius: 8px;
  background: var(--bad-soft);
  color: #b42318;
  margin: 0 6px 6px 0;
}
.wordchip.miss { background: #fef0c7; color: #b54708; }

.transcript-box {
  font-family: var(--mono);
  font-size: 13px;
  background: #fcfcfd;
  border: 1px dashed var(--line-2);
  border-radius: 10px;
  padding: 10px 13px;
  color: var(--ink-2);
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 40px;
}
.transcript-box.empty { color: var(--ink-3); font-style: italic; }

/* ---------------- 遮罩 / Toast ---------------- */

.overlay {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(16, 24, 40, 0.55);
  backdrop-filter: blur(3px);
  display: grid; place-items: center;
  padding: 24px;
}
.overlay .box {
  background: #fff; border-radius: 18px; padding: 30px 34px;
  box-shadow: 0 30px 60px -20px rgba(16,24,40,0.5);
  max-width: 460px; text-align: center;
}
.spinner {
  width: 40px; height: 40px; margin: 0 auto 16px;
  border: 3px solid var(--bg-soft);
  border-top-color: var(--brand);
  border-radius: 50%;
  animation: spin 0.85s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

#toast {
  position: fixed; left: 50%; bottom: 30px; transform: translateX(-50%);
  z-index: 200; display: flex; flex-direction: column; gap: 8px; align-items: center;
  pointer-events: none;
}
.toast {
  background: #101828; color: #fff;
  padding: 11px 20px; border-radius: 11px;
  font-size: 14px; font-weight: 600;
  box-shadow: 0 12px 28px -10px rgba(16,24,40,0.6);
  animation: rise 0.25s ease-out;
  max-width: 640px;
}
.toast.bad { background: #b42318; }
.toast.ok { background: #027a48; }
.toast.warn { background: #b54708; }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } }

.hidden { display: none !important; }

/* ---------------- 波形图 ---------------- */

.wavestrip { margin-top: 10px; }
.wavelabel {
  font-size: 12px;
  color: var(--ink-3);
  margin-bottom: 5px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
}
.wavewrap {
  position: relative;
  background: linear-gradient(180deg, #fcfcfd, #f6f8fc);
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 6px 8px;
}
.wavecanvas { display: block; width: 100%; border-radius: 6px; }
.waveempty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 12.5px;
  color: var(--ink-3);
  pointer-events: none;
}

.wave-stack { display: flex; flex-direction: column; gap: 12px; }
.wave-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  background: #fcfcfd;
}
.wave-card .wh {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 6px;
  font-size: 13.5px;
  font-weight: 700;
}
.wave-card .wh .meta { font-size: 12px; color: var(--ink-3); font-weight: 500; }
.wave-card audio { width: 100%; height: 32px; margin-top: 8px; }

.timeline-legend {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--ink-3);
  margin-top: 8px;
}
.timeline-legend i {
  display: inline-block;
  width: 10px; height: 10px; border-radius: 3px; margin-right: 5px;
  vertical-align: -1px;
}

/* 试音面板 */
.mictest-panel {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 16px;
  background: linear-gradient(180deg, #fbfcfe, #f7f9fc);
}
.mictest-panel.live { border-color: #fda29b; background: linear-gradient(180deg, #fffbfa, #fef3f2); }
.mictest-panel .hd {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 10px; flex-wrap: wrap;
}

.callout {
  border-radius: 12px;
  padding: 13px 16px;
  font-size: 14px;
  border: 1px solid;
  line-height: 1.7;
}
.callout.info { background: var(--brand-soft); border-color: #d1e0ff; color: #2b2eb0; }
.callout.warn { background: var(--warn-soft); border-color: #fedf89; color: #93370d; }
.callout.bad { background: var(--bad-soft); border-color: #fecdca; color: #912018; }
.callout.ok { background: var(--ok-soft); border-color: #a6f4c5; color: #05603a; }

/* ==================================================================
 *  顶栏导航 + 用户区
 * ================================================================== */

.topnav { display: flex; gap: 4px; margin-left: 18px; }
.topnav a {
  font-size: 13.5px;
  color: var(--ink-2, #414651);
  text-decoration: none;
  padding: 6px 11px;
  border-radius: 8px;
  font-weight: 600;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}
.topnav a:hover { background: var(--brand-soft, #eef2ff); color: var(--brand, #3538cd); }
.topnav a.active { background: var(--brand, #3538cd); color: #fff; }

.userchip { display: flex; align-items: center; gap: 8px; }
.userchip .uc-name { font-size: 13px; color: var(--ink, #101828); font-weight: 700; white-space: nowrap; }
.userchip .uc-quota {
  font-size: 12px;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--bg-soft, #f2f4f7);
  color: var(--ink-2, #414651);
  font-weight: 600;
  white-space: nowrap;
}
.userchip .uc-quota.ok { background: #12b76a; color: #fff; }
.userchip .uc-quota.bad { background: #f04438; color: #fff; }

/* ==================================================================
 *  窄容器 / 标签页 / 行内元素
 * ================================================================== */

.wrap.narrow { max-width: 760px; }
.nowrap { white-space: nowrap; }
code.code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  letter-spacing: 0.4px;
  background: var(--brand-soft);
  color: #2b2eb0;
  padding: 2px 7px;
  border-radius: 6px;
}
.tag {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  background: #f2f4f7;
  color: var(--ink-2);
  white-space: nowrap;
}
.tag.ok { background: var(--ok-soft); color: #05603a; }
.tag.warn { background: var(--warn-soft); color: #93370d; }
.tag.bad { background: var(--bad-soft); color: #912018; }

.row.end { justify-content: flex-end; }
.btn.danger { background: var(--bad); color: #fff; }
.btn.danger:hover { background: #d92d20; }
.btn.sm { padding: 7px 13px; font-size: 13px; }
.btn.lg { padding: 13px 26px; font-size: 15.5px; }

.tabs {
  display: flex;
  gap: 6px;
  background: #f2f4f7;
  padding: 5px;
  border-radius: 12px;
  margin-bottom: 20px;
}
.tabs .tab {
  flex: 1;
  border: 0;
  background: transparent;
  padding: 10px;
  border-radius: 9px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-2);
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, color 0.15s;
}
.tabs .tab.active { background: #fff; color: var(--brand); box-shadow: 0 1px 3px rgba(16, 24, 40, 0.1); }

input[type='text'],
input[type='email'],
input[type='password'],
input[type='number'],
select,
textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 14.5px;
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  box-sizing: border-box;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--brand-2);
  box-shadow: 0 0 0 3px rgba(53, 56, 205, 0.12);
}
textarea { resize: vertical; line-height: 1.6; }
label.muted { display: block; font-size: 12.5px; margin-bottom: 5px; }

/* ==================================================================
 *  收费标准
 * ================================================================== */

.price-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  gap: 16px;
  margin: 18px 0;
}
.price-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 1px 3px rgba(16, 24, 40, 0.05);
}
.price-card.hot { border-color: var(--brand-2); border-width: 2px; box-shadow: 0 8px 24px rgba(53, 56, 205, 0.14); }
.price-card.free { background: linear-gradient(180deg, #f6fef9, #fff); }
.pc-tag {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: 0.6px;
  text-transform: uppercase;
}
.pc-tag.best {
  position: absolute;
  top: -11px;
  right: 18px;
  background: var(--brand);
  color: #fff;
  padding: 3px 11px;
  border-radius: 999px;
  font-size: 11px;
}
.pc-name { font-size: 19px; font-weight: 700; }
.pc-price { display: flex; align-items: baseline; gap: 2px; color: var(--brand); }
.pc-price .cur { font-size: 18px; font-weight: 600; }
.pc-price .num { font-size: 40px; font-weight: 800; letter-spacing: -1.5px; line-height: 1; }
.pc-price .unit { font-size: 14px; color: var(--ink-3); margin-left: 3px; }
.pc-desc { font-size: 13.5px; color: var(--ink-2); line-height: 1.65; min-height: 44px; }
.pc-list { list-style: none; padding: 0; margin: 4px 0 8px; font-size: 13.5px; color: var(--ink-2); }
.pc-list li { padding: 5px 0 5px 22px; position: relative; }
.pc-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--ok);
  font-weight: 700;
}
.price-card .btn { margin-top: auto; }

.steps { padding-left: 22px; line-height: 2; font-size: 14.5px; color: var(--ink-2); }
.faq { display: flex; flex-direction: column; gap: 14px; font-size: 14px; color: var(--ink-2); line-height: 1.75; }
.faq b { color: var(--ink); }
.faq a { color: var(--brand); }

/* ==================================================================
 *  管理后台表格
 * ================================================================== */

#ad-code-table td, #ad-user-table td, #ad-log-table td { vertical-align: middle; font-size: 13px; }
#ad-user-table .btn + .btn { margin-left: 4px; }
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}
.stat-grid .stat {
  background: #f9fafb;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 13px 15px;
}
.stat-grid .stat .k { font-size: 12px; color: var(--ink-3); margin-bottom: 4px; }
.stat-grid .stat .v { font-size: 21px; font-weight: 700; color: var(--brand); }

#admin-panel .card + .card { margin-top: 16px; }
#admin-panel .row { gap: 12px; flex-wrap: wrap; }

@media (max-width: 900px) {
  .topnav { display: none; }
  .userchip .uc-name { display: none; }
}

@media print {
  .topbar, .btn, .nav-card, #toast { display: none !important; }
}

/* ---------- 环境变量锁定提示（管理后台） ---------- */
.notice {
  padding: 11px 14px;
  border-radius: 10px;
  background: #fff8e6;
  border: 1px solid #f2d38a;
  color: #7a5300;
  font-size: 13px;
  line-height: 1.65;
}
.notice b { color: #5c3d00; }
input:disabled,
select:disabled,
textarea:disabled {
  background: var(--bg-soft, #f5f5f7) !important;
  color: #8a8a94 !important;
  cursor: not-allowed;
  border-style: dashed !important;
}


/* ==================================================================
 *  通用补充（识别结果框 / 按钮变体 / 提示）
 * ================================================================== */

.transcript-box {
  min-height: 60px;
  padding: 16px;
  background: var(--bg-soft, #f9fafb);
  border: 2px dashed var(--muted-border, #e5e7eb);
  border-radius: 10px;
  font-size: 15px;
  color: var(--text, #1a1a2e);
  line-height: 1.6;
  margin-top: 12px;
}

.transcript-box.has-content {
  border-color: var(--ok, #10b981);
  border-style: solid;
  background: #f0fdf4;
}

.btn.primary {
  background: linear-gradient(135deg, var(--brand, #3538cd) 0%, #4f46e5 100%);
  color: white;
}

.btn.primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #2d30a8 0%, #4338ca 100%);
  transform: translateY(-1px);
}

.btn.primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn.danger {
  background: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
  color: white;
}

.btn.danger:hover:not(:disabled) {
  background: linear-gradient(135deg, #b91c1c 0%, #dc2626 100%);
}

.btn.lg {
  padding: 12px 32px;
  font-size: 16px;
}

.error {
  padding: 12px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
  border-radius: 8px;
}

/* ---------- 手机端适配 ---------- */
@media (max-width: 720px) {
  .topbar-inner { flex-wrap: wrap; gap: 8px; padding: 8px 12px; }
  .topnav {
    order: 10;
    width: 100%;
    margin-left: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 2px;
  }
  .topnav a { white-space: nowrap; flex: 0 0 auto; padding: 6px 10px; font-size: 13px; }
  .topbar-inner .spacer { display: none; }
  .wrap { padding-left: 12px; padding-right: 12px; }
  .card { padding: 16px; border-radius: 12px; }
  .btn { padding: 10px 16px; font-size: 14px; }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; }
  .price-grid { grid-template-columns: 1fr !important; }
  table.spec { font-size: 12.5px; }
  table.spec th,
  table.spec td { padding: 7px 6px; }
}

@media (max-width: 400px) {
  .topnav a { font-size: 12px; padding: 5px 8px; }
}

/* 定价说明配图 */
.price-source-img {
  display: block;
  max-width: 100%;
  margin: 14px auto 0;
  border-radius: 12px;
  border: 1px solid #e9edf3;
  box-shadow: 0 4px 16px rgba(16, 24, 40, 0.06);
}
.cfg-img-preview {
  max-width: 100%;
  max-height: 200px;
  border-radius: 10px;
  border: 1px solid #e9edf3;
  margin-top: 10px;
  display: block;
}

/* 验证码 */
.captcha-row { gap: 10px; }
.captcha-img {
  width: 132px; height: 46px;
  border: 1px solid #d0d5dd;
  border-radius: 8px;
  background: #f4f6fb;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}
.captcha-img svg { display: block; width: 130px; height: 44px; }
.captcha-img:hover { border-color: var(--brand, #4f46e5); }

/* 进度条（组卷 / 倒计时等通用） */
.progress-bar {
  width: 100%; height: 8px;
  background: #e9edf3;
  border-radius: 4px;
  overflow: hidden;
  margin: 10px 0;
}
.progress-bar .fill {
  height: 100%;
  background: var(--brand, #4f46e5);
  border-radius: 4px;
  transition: width 0.3s ease;
  width: 0;
}
.progress-bar.countdown .fill { background: #f59e0b; }
.progress-text {
  font-size: 13px;
  color: var(--ink-2, #414651);
  text-align: center;
  margin-top: 4px;
}

/* 全局倍速控件 */
.speed-ctrl {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--ink-2, #414651);
}
.speed-ctrl select {
  padding: 2px 6px; font-size: 13px;
  border: 1px solid #d0d5dd; border-radius: 6px;
  background: #fff;
}

/* 答题侧栏的倍速下拉 */
.speed-select {
  padding: 3px 8px;
  font-size: 13px;
  border: 1px solid #d0d5dd;
  border-radius: 8px;
  background: #fff;
  color: var(--ink, #101828);
  cursor: pointer;
}

/* 管理后台模式：隐藏考生导航与登录入口，只保留「返回首页」 */
.admin-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 18px 0 12px;
  font-size: 15px;
  color: var(--ink, #101828);
}
.admin-only { display: none !important; }
body.admin-mode .admin-only {
  display: inline-flex !important;
  align-items: center;
}
body.admin-mode .topnav,
body.admin-mode #btn-auth-open,
body.admin-mode #user-chip,
body.admin-mode #pill-model,
body.admin-mode #pill-api,
body.admin-mode #pill-asr,
body.admin-mode #pill-tts { display: none !important; }

/* AI 接口配置：强制显示（防止浏览器插件把这些输入框当广告位隐藏） */
#card-ai-config input,
#card-ai-config select {
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
  width: 100%;
  height: 42px;
  background: #fff;
  color: var(--ink, #101828);
  border: 1px solid #e4e7ec;
  border-radius: 10px;
  padding: 0 12px;
  box-sizing: border-box;
}
#card-ai-config input:focus,
#card-ai-config select:focus {
  outline: none;
  border-color: var(--brand, #4f46e5);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

/* ============ 信息转述：思维导图 ============ */
.mindmap {
  margin: 14px 0 6px;
  padding: 16px;
  border: 1px solid var(--line, #e4e7ec);
  border-radius: 14px;
  background: #fbfbfd;
}
.mm-root {
  display: inline-block;
  padding: 9px 20px;
  border-radius: 999px;
  background: var(--brand, #4f46e5);
  color: #fff;
  font-weight: 700;
  font-size: 14.5px;
  margin-bottom: 16px;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}
.mm-branches {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 10px;
}
.mm-node {
  position: relative;
  background: #fff;
  border: 1px solid #dfe3ea;
  border-left: 4px solid var(--brand, #4f46e5);
  border-radius: 10px;
  padding: 10px 12px 10px 14px;
}
.mm-idx {
  position: absolute;
  top: -8px;
  left: -8px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--brand, #4f46e5);
  color: #fff;
  font-size: 11.5px;
  font-weight: 700;
  display: grid;
  place-items: center;
}
.mm-q {
  font-size: 13.5px;
  color: #475467;
  line-height: 1.5;
}
.mm-a {
  margin-top: 5px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink, #101828);
  line-height: 1.5;
}

/* 听选信息：一问两答选项 */
.qopts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.qopt {
  padding: 6px 14px;
  border: 1px solid #dfe3ea;
  border-radius: 8px;
  background: #fff;
  font-size: 14px;
  color: var(--ink, #101828);
}
.qitem.active .qopt { border-color: var(--brand, #4f46e5); }
.qitem.done .qopt.correct { border-color: var(--ok, #12b76a); background: #ecfdf3; }

/* 安全管控开关 */
.switch-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid #dfe3ea;
  border-radius: 10px;
  background: #fff;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
}
.switch-row input { width: 16px; height: 16px; cursor: pointer; }

/* 历史记录 */
.hist-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 14px;
  border: 1px solid var(--line, #e4e7ec);
  border-radius: 10px;
  margin-bottom: 8px;
  background: #fff;
}
.hist-date { font-size: 12.5px; color: #667085; min-width: 118px; }
.hist-topic { flex: 1; font-size: 14px; color: var(--ink, #101828); }
.hist-score { font-size: 17px; font-weight: 700; color: var(--brand, #4f46e5); }
.hist-score small { font-size: 12px; font-weight: 400; color: #667085; }