/* 第6套：程度圆环工作室。白卡叠在浅紫上，竖向收口，和对照表台账不是同一骨架。 */
:root {
  --violet: #6d28d9;
  --violet-deep: #4c1d95;
  --wash: #f5f3ff;
  --card: #ffffff;
  --ink: #1e1b4b;
  --muted: #5b5678;
  --line: #ddd6fe;
  --halt: #9f1239;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body.extent-body {
  margin: 0;
  background: var(--wash);
  color: var(--ink);
  font-family: Georgia, "Songti SC", "SimSun", "Times New Roman", serif;
  line-height: 1.8;
}

a {
  color: var(--violet);
}

.top-ribbon {
  background: var(--card);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem 1rem;
  padding: 1rem 5vw;
  box-shadow: 0 10px 30px rgba(109, 40, 217, 0.08);
}

.mark {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--violet-deep);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-weight: 800;
}

.mark svg {
  width: 30px;
  height: 30px;
  color: var(--violet);
}

.jump-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.85rem;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.9rem;
}

.jump-nav a {
  text-decoration: none;
  color: var(--violet-deep);
}

.degree-hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem 2.5rem;
  padding: 2rem 5vw 1.4rem;
}

.degree-copy {
  flex: 1 1 280px;
  max-width: 36rem;
}

.degree-copy h1 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  line-height: 1.35;
}

.degree-copy p {
  margin: 0 0 0.7rem;
  color: var(--muted);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.ring-panel {
  flex: 1 1 280px;
  display: flex;
  justify-content: space-around;
  gap: 0.8rem;
  background: var(--card);
  border-radius: 24px;
  padding: 1.2rem 1rem;
  box-shadow: 0 16px 40px rgba(76, 29, 149, 0.08);
}

.extent-ring {
  text-align: center;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.85rem;
  color: var(--violet-deep);
  font-weight: 700;
}

.extent-ring svg {
  width: 92px;
  height: 92px;
  margin: 0 auto 0.4rem;
}

.done-block,
.stop-block,
.ratio-block,
.misread-block,
.use-block,
.match-block,
.tune-block,
.q-block {
  padding: 1.3rem 5vw 1.8rem;
}

.done-block h2,
.stop-block h2,
.ratio-block h2,
.misread-block h2,
.use-block h2,
.match-block h2,
.tune-block h2,
.q-block h2 {
  margin: 0 0 0.7rem;
  font-size: 1.4rem;
}

.prose {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--muted);
  margin: 0 0 1rem;
  max-width: 50rem;
}

.done-rack,
.stop-rack {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.done-card,
.stop-card,
.misread-cell,
.tune-card,
.match-col {
  background: var(--card);
  border-radius: 18px;
  padding: 1rem 1.1rem;
  box-shadow: 0 8px 24px rgba(76, 29, 149, 0.06);
}

.done-card {
  border: 1px solid var(--line);
}

.stop-card {
  border: 2px dashed #f9a8d4;
}

.done-card h3,
.stop-card h3,
.misread-cell h3,
.tune-card h3,
.match-col h3 {
  margin: 0.4rem 0 0.4rem;
  font-size: 1.05rem;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.done-card p,
.stop-card p,
.misread-cell p,
.tune-card p,
.match-col p,
.bound-step p {
  margin: 0 0 0.5rem;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--muted);
}

.done-card svg {
  width: 28px;
  height: 28px;
  color: var(--violet);
}

.stop-card svg {
  width: 28px;
  height: 28px;
  color: var(--halt);
}

.ratio-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--card);
  border-radius: 16px;
  overflow: hidden;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.95rem;
}

.ratio-table th,
.ratio-table td {
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.ratio-table thead th {
  background: var(--violet);
  color: #fff;
}

.misread-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}

.bound-steps {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  border-left: 4px solid var(--violet);
  padding-left: 1rem;
}

.bound-step {
  background: var(--card);
  border-radius: 14px;
  padding: 0.85rem 1rem;
}

.bound-step strong {
  display: block;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--violet-deep);
  margin-bottom: 0.25rem;
}

.match-duo,
.tune-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}

.q-ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: qa;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.q-ol li {
  background: var(--card);
  border-radius: 16px;
  padding: 1rem 1.1rem 1rem 3.4rem;
  margin-bottom: 0.75rem;
  position: relative;
  box-shadow: 0 8px 24px rgba(76, 29, 149, 0.05);
}

.q-ol li::before {
  counter-increment: qa;
  content: counter(qa);
  position: absolute;
  left: 0.85rem;
  top: 1rem;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
  background: var(--violet);
  color: #fff;
  text-align: center;
  line-height: 1.8rem;
  font-weight: 700;
}

.q-ol h3 {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
}

.q-ol p {
  margin: 0 0 0.45rem;
  color: var(--muted);
}

.foot-extent {
  background: var(--violet-deep);
  color: #ddd6fe;
  padding: 1.5rem 5vw;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.92rem;
}

.foot-extent p {
  margin: 0 0 0.45rem;
  max-width: 48rem;
}

.foot-extent p:last-child {
  margin-top: 0.75rem;
  color: #c4b5fd;
}

@media (max-width: 800px) {
  .done-rack,
  .stop-rack,
  .misread-grid,
  .match-duo,
  .tune-row {
    grid-template-columns: 1fr;
  }

  .ring-panel {
    width: 100%;
  }
}