.page-disclaimer {
  --rail-w: 216px;
  --step-line: rgba(155, 176, 166, .28);
}

.page-disclaimer [id] {
  scroll-margin-top: 96px;
}

.page-disclaimer .visually-hidden-text {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- 首屏说明区 ---------- */
.page-disclaimer .guide-hero {
  position: relative;
  padding: clamp(22px, 4vw, 40px) 0 clamp(24px, 4vw, 44px);
  border-bottom: 1px solid var(--hairline);
}

.page-disclaimer .guide-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: clamp(64px, 18vw, 140px);
  height: 2px;
  background: linear-gradient(90deg, var(--lime), var(--sand));
}

.page-disclaimer .guide-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6.4vw, 62px);
  line-height: 1.02;
  letter-spacing: .01em;
  color: var(--paper);
  margin: 10px 0 16px;
  max-width: 22ch;
}

.page-disclaimer .guide-lede {
  max-width: 62ch;
  color: var(--body-text);
  font-size: 16px;
  line-height: 1.78;
  margin: 0;
}

.page-disclaimer .hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.page-disclaimer .hero-tag {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  padding: 6px 10px;
  color: var(--muted);
  border: 1px solid var(--hairline);
  background: rgba(18, 49, 40, .55);
}

.page-disclaimer .hero-tag--lime {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--lime);
  font-weight: 700;
}

/* ---------- 主体布局 ---------- */
.page-disclaimer .guide-shell {
  display: grid;
  gap: clamp(20px, 3vw, 44px);
  padding: clamp(20px, 3vw, 44px) 0 clamp(40px, 6vw, 80px);
}

.page-disclaimer .guide-shell > * {
  min-width: 0;
}

/* ---------- 进度轨 ---------- */
.page-disclaimer .guide-rail {
  border-top: 1px solid var(--sand-line);
  border-bottom: 1px solid var(--hairline);
  padding: 12px 0;
}

.page-disclaimer .rail-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 10px;
}

.page-disclaimer .rail-list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .rail-list::-webkit-scrollbar {
  display: none;
}

.page-disclaimer .rail-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--body-text);
  text-decoration: none;
  border: 1px solid var(--hairline);
  background: rgba(18, 49, 40, .5);
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-disclaimer .rail-num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--lime);
}

.page-disclaimer .rail-link:hover,
.page-disclaimer .rail-link:focus-visible {
  color: var(--lime-soft);
  border-color: var(--lime-line);
  background: rgba(200, 255, 61, .08);
}

/* ---------- 章节 ---------- */
.page-disclaimer .guide-section {
  padding: clamp(26px, 4vw, 46px) 0;
  border-top: 1px solid var(--hairline);
}

.page-disclaimer .guide-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-disclaimer .section-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--sand);
  margin: 0 0 8px;
}

.page-disclaimer .guide-section h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.1;
  color: var(--paper);
  margin: 0 0 12px;
}

.page-disclaimer .section-lede {
  max-width: 66ch;
  color: var(--body-text);
  font-size: 15.5px;
  line-height: 1.75;
  margin: 0 0 clamp(18px, 3vw, 28px);
}

/* ---------- 第 3 版更新卡 ---------- */
.page-disclaimer .update-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-disclaimer .update-card {
  position: relative;
  padding: 18px 18px 20px;
  background: var(--panel);
  border: 1px solid var(--hairline);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-disclaimer .update-num {
  display: inline-block;
  font-size: 12px;
  color: var(--lime);
  letter-spacing: .12em;
  margin-bottom: 8px;
}

.page-disclaimer .update-card h3 {
  font-size: 17px;
  line-height: 1.4;
  color: var(--paper);
  margin: 0 0 8px;
  font-weight: 600;
}

.page-disclaimer .update-card p {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--body-text);
  margin: 0;
}

/* ---------- 开始之前 ---------- */
.page-disclaimer .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .prep-item {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-top: 1px dashed var(--step-line);
}

.page-disclaimer .prep-item:last-child {
  border-bottom: 1px dashed var(--step-line);
}

.page-disclaimer .prep-key {
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--sand);
}

.page-disclaimer .prep-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--body-text);
  max-width: 70ch;
}

/* ---------- 流程图 ---------- */
.page-disclaimer .steps-figure {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-disclaimer .steps-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  border-left: 2px solid var(--sand-line);
  padding-left: 10px;
}

.page-disclaimer .media-frame {
  border: 1px solid var(--hairline);
  overflow: hidden;
  background: linear-gradient(135deg, rgba(107, 79, 168, .28), rgba(200, 255, 61, .12));
}

.page-disclaimer .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 九步 ---------- */
.page-disclaimer .steps {
  border-top: 1px solid var(--hairline-strong);
}

.page-disclaimer .step {
  padding: 18px 0 20px;
  border-bottom: 1px solid var(--hairline);
}

.page-disclaimer .step-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-disclaimer .step-num {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lime);
}

.page-disclaimer .step-head h3 {
  font-size: clamp(17px, 2.4vw, 21px);
  line-height: 1.35;
  color: var(--paper);
  margin: 0;
  font-weight: 600;
}

.page-disclaimer .step-part {
  display: grid;
  gap: 4px;
  margin-top: 12px;
  padding-left: 12px;
  border-left: 1px solid var(--step-line);
}

.page-disclaimer .step-part--done {
  border-left-color: var(--lime-line);
}

.page-disclaimer .step-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-disclaimer .step-part--done .step-label {
  color: var(--lime);
}

.page-disclaimer .step-part p {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--body-text);
  max-width: 72ch;
}

.page-disclaimer .step .expand-group {
  margin-top: 12px;
  padding-left: 12px;
}

.page-disclaimer .step .expand-trigger {
  font-size: 13px;
}

.page-disclaimer .step .expand-panel-inner p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--body-text);
}

/* ---------- 筛选组合 ---------- */
.page-disclaimer .combo-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-disclaimer .combo {
  padding: 18px;
  background: var(--ink-soft);
  border: 1px solid var(--hairline);
  border-top: 2px solid var(--violet);
}

.page-disclaimer .combo h3 {
  font-size: 16.5px;
  line-height: 1.4;
  color: var(--paper);
  margin: 0 0 12px;
  font-weight: 600;
}

.page-disclaimer .combo-chain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 12px;
}

.page-disclaimer .combo-step {
  padding: 4px 8px;
  font-size: 11.5px;
  color: var(--lime-soft);
  border: 1px solid var(--lime-line);
  background: rgba(200, 255, 61, .06);
}

.page-disclaimer .combo-arrow {
  color: var(--muted);
  font-size: 12px;
}

.page-disclaimer .combo p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--body-text);
}

.page-disclaimer .combo-note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  border-left: 2px solid var(--sand-line);
  padding-left: 12px;
}

/* ---------- 复盘读法 ---------- */
.page-disclaimer .read-order {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-disclaimer .read-item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  position: relative;
}

.page-disclaimer .read-item::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 34px;
  bottom: -18px;
  width: 1px;
  background: var(--step-line);
}

.page-disclaimer .read-item:last-child::before {
  display: none;
}

.page-disclaimer .read-dot {
  position: relative;
  z-index: 1;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 12px;
  color: var(--ink);
  background: var(--lime);
}

.page-disclaimer .read-item h3 {
  font-size: 16.5px;
  line-height: 1.4;
  color: var(--paper);
  margin: 4px 0 6px;
  font-weight: 600;
}

.page-disclaimer .read-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--body-text);
}

.page-disclaimer .misread-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-disclaimer .misread-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  padding: 10px 12px;
  background: rgba(255, 107, 74, .06);
  border-left: 2px solid var(--coral);
}

.page-disclaimer .misread-mark {
  font-size: 10.5px;
  letter-spacing: .12em;
  color: var(--coral);
  padding-top: 3px;
}

/* ---------- 收藏自查 ---------- */
.page-disclaimer .check-list {
  border-top: 1px solid var(--hairline-strong);
}

.page-disclaimer .check-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline);
}

.page-disclaimer .check-idx {
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--lime);
}

.page-disclaimer .check-symptom {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--paper);
  font-weight: 600;
}

.page-disclaimer .check-action {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--body-text);
}

/* ---------- 版本对比 ---------- */
.page-disclaimer .table-scroll {
  overflow-x: auto;
  border: 1px solid var(--hairline);
  background: var(--panel);
}

.page-disclaimer .diff-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-disclaimer .diff-table th,
.page-disclaimer .diff-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--hairline);
  line-height: 1.65;
}

.page-disclaimer .diff-table thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  border-bottom: 1px solid var(--hairline-strong);
  background: rgba(5, 18, 14, .5);
}

.page-disclaimer .diff-table tbody th {
  color: var(--paper);
  font-weight: 600;
  white-space: nowrap;
}

.page-disclaimer .diff-table td {
  color: var(--body-text);
}

.page-disclaimer .diff-table tbody tr:last-child th,
.page-disclaimer .diff-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-disclaimer .version-after {
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--body-text);
  max-width: 72ch;
}

.page-disclaimer .version-after a,
.page-disclaimer .guide-back a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--lime-line);
}

.page-disclaimer .version-after a:hover,
.page-disclaimer .guide-back a:hover {
  color: var(--lime-soft);
}

/* ---------- 误操作对照 ---------- */
.page-disclaimer .mistake-list {
  border-top: 1px solid var(--hairline-strong);
  margin-bottom: clamp(24px, 4vw, 36px);
}

.page-disclaimer .mistake-row {
  display: grid;
  gap: 10px;
  padding: 14px 0;
  border-bottom: 1px solid var(--hairline);
}

.page-disclaimer .mistake-cell {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 8px;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  padding-left: 10px;
}

.page-disclaimer .mistake-cell--bad {
  color: var(--muted);
  border-left: 2px solid var(--coral);
}

.page-disclaimer .mistake-cell--good {
  color: var(--body-text);
  border-left: 2px solid var(--lime);
}

.page-disclaimer .mistake-mark {
  font-size: 12px;
  line-height: 1.6;
}

.page-disclaimer .mistake-cell--bad .mistake-mark {
  color: var(--coral);
}

.page-disclaimer .mistake-cell--good .mistake-mark {
  color: var(--lime);
}

/* ---------- 术语表 ---------- */
.page-disclaimer .glossary-title {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 24px);
  color: var(--paper);
  margin: 0 0 10px;
  font-weight: 700;
}

.page-disclaimer .glossary {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--hairline);
}

.page-disclaimer .glossary-row {
  display: grid;
  gap: 2px;
  padding: 12px 0;
  border-bottom: 1px solid var(--hairline);
}

.page-disclaimer .glossary dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--lime-soft);
}

.page-disclaimer .glossary dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--body-text);
}

/* ---------- 下一步 ---------- */
.page-disclaimer .guide-next {
  padding-top: clamp(24px, 4vw, 40px);
  border-top: 2px solid var(--sand-line);
}

.page-disclaimer .guide-next h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3.2vw, 32px);
  color: var(--paper);
  margin: 0 0 16px;
}

.page-disclaimer .next-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}

.page-disclaimer .next-card {
  display: grid;
  gap: 6px;
  padding: 16px;
  text-decoration: none;
  background: rgba(18, 49, 40, .7);
  border: 1px solid var(--hairline);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition: border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-disclaimer .next-card:hover,
.page-disclaimer .next-card:focus-visible {
  border-color: var(--lime-line);
  background: rgba(200, 255, 61, .09);
}

.page-disclaimer .next-kicker {
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--sand);
}

.page-disclaimer .next-title {
  font-size: 15px;
  line-height: 1.5;
  color: var(--paper);
}

.page-disclaimer .guide-contact {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--muted);
  max-width: 68ch;
}

.page-disclaimer .guide-back {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
}

/* ---------- 中屏 ---------- */
@media (min-width: 680px) {
  .page-disclaimer .update-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .combo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .prep-item,
  .page-disclaimer .check-row {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: baseline;
    column-gap: 16px;
  }

  .page-disclaimer .check-row {
    grid-template-columns: 40px minmax(0, .9fr) minmax(0, 1.3fr);
    align-items: start;
  }

  .page-disclaimer .mistake-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 18px;
  }

  .page-disclaimer .glossary-row {
    grid-template-columns: 190px minmax(0, 1fr);
    column-gap: 18px;
    align-items: baseline;
  }
}

/* ---------- 桌面：右置竖向进度轨 ---------- */
@media (min-width: 980px) {
  .page-disclaimer .guide-shell {
    grid-template-columns: minmax(0, 1fr) var(--rail-w);
    column-gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-disclaimer .guide-body {
    grid-column: 1;
    grid-row: 1;
  }

  .page-disclaimer .guide-rail {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: 104px;
    align-self: start;
    border-top: 0;
    border-bottom: 0;
    border-left: 1px solid var(--sand-line);
    padding: 4px 0 4px 16px;
    max-height: calc(100vh - 140px);
    overflow-y: auto;
  }

  .page-disclaimer .rail-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
  }

  .page-disclaimer .rail-link {
    border: 0;
    border-left: 2px solid transparent;
    background: none;
    padding: 9px 0 9px 10px;
    white-space: normal;
    line-height: 1.5;
    font-size: 13.5px;
  }

  .page-disclaimer .rail-link:hover,
  .page-disclaimer .rail-link:focus-visible {
    border-left-color: var(--lime);
    background: linear-gradient(90deg, rgba(200, 255, 61, .1), transparent);
  }

  .page-disclaimer .step {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .page-disclaimer .step-head h3 {
    font-size: 21px;
  }

  .page-disclaimer .next-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .rail-link,
  .page-disclaimer .next-card {
    transition: none;
  }
}