/* ==========================================================
   使用说明 /usage/ —— 页面作用域 .page-disclaimer
   ========================================================== */

.page-disclaimer {
  --dd-rail-w: 208px;
  --dd-card-bg: rgba(30, 90, 71, .34);
  position: relative;
  overflow-x: hidden;
  color: var(--ivory);
  background-color: var(--night);
  background-image:
    radial-gradient(circle at 1px 1px, rgba(201, 162, 39, .14) 1px, transparent 1.8px),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 72px 72px;
}

.page-disclaimer .guide-shell {
  width: min(calc(100% - (var(--gutter) * 2)), var(--shell));
  margin-inline: auto;
}

/* ---------- 首屏 ---------- */

.page-disclaimer .guide-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(84px, 12vw, 130px) clamp(40px, 6vw, 68px);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .guide-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  opacity: .34;
}

.page-disclaimer .guide-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(7, 28, 23, .58) 0%, rgba(11, 43, 36, .9) 66%, var(--night) 100%);
}

.page-disclaimer .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-disclaimer .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-14);
}

.page-disclaimer .breadcrumb__item {
  display: inline-flex;
  align-items: center;
  color: var(--mist);
}

.page-disclaimer .breadcrumb__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-disclaimer .breadcrumb__link:hover {
  color: var(--gold-pale);
  border-bottom-color: var(--line-gold);
}

.page-disclaimer .breadcrumb__current {
  color: var(--gold-pale);
}

.page-disclaimer .guide-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 20px;
  padding: 6px 14px;
  border: 1px solid var(--line-gold);
  font-size: var(--fs-14);
  letter-spacing: .14em;
  color: var(--gold-pale);
}

.page-disclaimer .num {
  font-family: var(--font-head);
  font-size: var(--fs-24);
  line-height: 1;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-disclaimer .guide-hero__title {
  max-width: 15em;
  margin: 0 0 22px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(2rem, 5.4vw, 4.5rem);
  line-height: 1.1;
  letter-spacing: -.005em;
  color: var(--ivory);
}

.page-disclaimer .guide-hero__lede {
  max-width: 46em;
  margin: 0;
  font-size: var(--fs-18);
  line-height: 1.9;
  color: rgba(244, 240, 230, .86);
}

.page-disclaimer .guide-hero__index {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: clamp(28px, 4vw, 42px) 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .guide-hero__index-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: auto auto;
  column-gap: 16px;
  align-items: center;
  padding: 16px 20px;
  background: rgba(7, 28, 23, .66);
  border: 2px solid var(--line-mid);
  color: var(--ivory);
  text-decoration: none;
  transition: border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-disclaimer .guide-hero__index-link:hover,
.page-disclaimer .guide-hero__index-link:focus-visible {
  border-color: var(--gold);
  background: rgba(30, 90, 71, .55);
}

.page-disclaimer .guide-hero__index-link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-disclaimer .guide-hero__index-num {
  grid-row: span 2;
  font-family: var(--font-head);
  font-size: var(--fs-24);
  line-height: 1;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-disclaimer .guide-hero__index-label {
  font-size: var(--fs-18);
  font-weight: 700;
  line-height: 1.5;
}

.page-disclaimer .guide-hero__index-desc {
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 主体双栏骨架 ---------- */

.page-disclaimer .guide-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 44px);
  padding-block: clamp(40px, 6vw, 76px) clamp(56px, 8vw, 98px);
}

.page-disclaimer .guide-main {
  min-width: 0;
}

/* ---------- 章节骨架 ---------- */

.page-disclaimer .guide-sec {
  position: relative;
  padding-top: clamp(30px, 4.6vw, 56px);
}

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

.page-disclaimer .section__rule {
  height: 1px;
  margin: 0 0 clamp(20px, 3vw, 30px);
  background: linear-gradient(90deg, var(--line-mid) 0%, rgba(233, 219, 166, .06) 72%, transparent 100%);
}

.page-disclaimer .section__index {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: var(--fs-14);
  letter-spacing: .16em;
  color: var(--gold-pale);
}

.page-disclaimer .section__title {
  max-width: 24em;
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 3.4vw, 2.5rem);
  line-height: 1.24;
  color: var(--ivory);
}

.page-disclaimer .section__note {
  max-width: 50em;
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-size: var(--fs-16);
  line-height: 1.85;
  color: rgba(244, 240, 230, .8);
}

/* ---------- 蓝图网格 ---------- */

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

/* ---------- 编号卡片 ---------- */

.page-disclaimer .guide-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--dd-card-bg);
  border: 2px solid var(--line-mid);
  box-shadow: var(--shadow-hard);
}

.page-disclaimer .guide-card--felt {
  background: rgba(7, 28, 23, .74);
}

.page-disclaimer .guide-card--note {
  background: rgba(30, 90, 71, .2);
  border-left: 4px solid var(--gold);
}

.page-disclaimer .guide-card__num {
  font-family: var(--font-head);
  font-size: var(--fs-32);
  line-height: 1;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-disclaimer .guide-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: var(--fs-18);
  line-height: 1.45;
  color: var(--ivory);
}

.page-disclaimer .guide-card__text {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: rgba(244, 240, 230, .82);
}

/* ---------- 查阅前的准备 ---------- */

.page-disclaimer .guide-prep {
  margin-top: clamp(22px, 3vw, 34px);
  padding: clamp(20px, 2.6vw, 30px);
  background: rgba(7, 28, 23, .52);
  border: 2px dashed var(--line-mid);
}

.page-disclaimer .guide-prep__title {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-size: var(--fs-18);
  color: var(--gold-pale);
}

.page-disclaimer .guide-prep__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .guide-prep__list li {
  padding-left: 16px;
  border-left: 2px solid var(--gold);
  font-size: var(--fs-16);
  line-height: 1.78;
  color: rgba(244, 240, 230, .84);
}

.page-disclaimer .guide-prep__k {
  display: block;
  margin-bottom: 4px;
  font-weight: 700;
  color: var(--ivory);
}

/* ---------- 编号构成示意 ---------- */

.page-disclaimer .guide-lookup__figure {
  margin: 0;
  padding: clamp(16px, 2.2vw, 26px);
  background: rgba(7, 28, 23, .68);
  border: 2px solid var(--line-mid);
}

.page-disclaimer .guide-nummap {
  display: block;
  width: 100%;
  max-width: 620px;
  height: auto;
  margin-inline: auto;
}

.page-disclaimer .guide-nummap text {
  font-family: var(--font-head);
  text-anchor: middle;
  dominant-baseline: middle;
}

.page-disclaimer .guide-nummap__part rect {
  fill: rgba(30, 90, 71, .5);
  stroke: var(--line-mid);
  stroke-width: 2;
  transition: stroke .22s var(--ease), fill .22s var(--ease);
}

.page-disclaimer .guide-nummap__part text {
  font-size: 36px;
  letter-spacing: .12em;
  fill: var(--gold);
}

.page-disclaimer .guide-nummap__part:hover rect {
  stroke: var(--gold);
  fill: rgba(47, 124, 99, .58);
}

.page-disclaimer .guide-nummap__dash {
  stroke: var(--line-mid);
  stroke-width: 2;
  stroke-dasharray: 6 6;
}

.page-disclaimer .guide-nummap__leader {
  stroke: var(--line-mid);
  stroke-width: 1;
  stroke-dasharray: 4 5;
}

.page-disclaimer .guide-nummap__cap {
  font-family: var(--font-body);
  font-size: 16px;
  letter-spacing: .06em;
  fill: var(--mist);
}

.page-disclaimer .guide-lookup__caption {
  margin: 20px 0 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 编号步骤 ---------- */

.page-disclaimer .guide-steps {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .guide-steps__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-disclaimer .guide-steps__num {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 2px solid var(--gold);
  font-family: var(--font-head);
  font-size: var(--fs-16);
  line-height: 1;
  color: var(--gold);
}

.page-disclaimer .guide-steps__text {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.82;
  color: rgba(244, 240, 230, .84);
}

/* ---------- 分段切换 ---------- */

.page-disclaimer .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .tab {
  appearance: none;
  padding: 10px 20px;
  border: 2px solid var(--line-mid);
  background: transparent;
  color: var(--ivory);
  font-family: var(--font-body);
  font-size: var(--fs-14);
  letter-spacing: .06em;
  cursor: pointer;
  transition: border-color .2s var(--ease), color .2s var(--ease), background-color .2s var(--ease);
}

.page-disclaimer .tab:hover {
  border-color: var(--gold);
}

.page-disclaimer .tab[aria-selected="true"],
.page-disclaimer .tab.is-active {
  border-color: var(--gold);
  background: rgba(201, 162, 39, .1);
  color: var(--gold-pale);
}

.page-disclaimer .tab:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-disclaimer .guide-panel {
  padding: clamp(18px, 2.4vw, 26px);
  background: rgba(7, 28, 23, .6);
  border: 2px solid var(--line-mid);
  border-left: 4px solid var(--felt-bright);
  animation: dd-fade .28s var(--ease) both;
}

.page-disclaimer .guide-panel[hidden] {
  display: none;
}

.page-disclaimer .guide-panel__list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding-left: 20px;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: rgba(244, 240, 230, .86);
}

.page-disclaimer .guide-panel__list li::marker {
  color: var(--gold);
}

.page-disclaimer .guide-panel__list strong {
  color: var(--gold-pale);
}

.page-disclaimer .guide-panel__foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--mist);
}

@keyframes dd-fade {
  from { opacity: 0; transform: translateX(10px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 版本时间标记 ---------- */

.page-disclaimer .guide-timeline {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin: 0 0 clamp(22px, 3vw, 34px);
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-disclaimer .guide-timeline__item {
  position: relative;
  padding: 22px 18px 22px 24px;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .guide-timeline__item::before {
  content: "";
  position: absolute;
  top: 26px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--felt-bright);
  box-shadow: 0 0 0 3px var(--night);
}

.page-disclaimer .guide-timeline__item.is-current {
  background: rgba(201, 162, 39, .07);
  border-left: 2px solid var(--gold);
}

.page-disclaimer .guide-timeline__item.is-current::before {
  background: var(--gold);
}

.page-disclaimer .guide-timeline__ver {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-head);
  font-size: var(--fs-24);
  line-height: 1.1;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-disclaimer .guide-timeline__label {
  display: block;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

.page-disclaimer .guide-versions__steps {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 18px;
  font-size: var(--fs-16);
  line-height: 1.82;
  color: rgba(244, 240, 230, .84);
}

.page-disclaimer .guide-versions__steps li::marker {
  color: var(--gold);
}

/* ---------- 反馈区块 ---------- */

.page-disclaimer .guide-subtitle {
  margin: 0 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-head);
  font-size: var(--fs-18);
  color: var(--gold-pale);
}

.page-disclaimer .guide-facts {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .guide-facts li {
  padding-left: 14px;
  border-left: 2px solid var(--felt-bright);
  font-size: var(--fs-16);
  line-height: 1.8;
  color: rgba(244, 240, 230, .84);
}

.page-disclaimer .guide-facts__k {
  display: block;
  margin-bottom: 2px;
  font-weight: 700;
  color: var(--ivory);
}

.page-disclaimer .guide-note {
  margin: 18px 0 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .guide-link {
  color: var(--gold-pale);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-disclaimer .guide-link:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- 使用习惯清单 ---------- */

.page-disclaimer .guide-notes {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .guide-notes__item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px dashed var(--line);
}

.page-disclaimer .guide-notes__item:first-child {
  border-top: 1px dashed var(--line);
}

.page-disclaimer .guide-notes__num {
  font-family: var(--font-head);
  font-size: var(--fs-24);
  line-height: 1.2;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-disclaimer .guide-notes__item p {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: rgba(244, 240, 230, .84);
}

/* ---------- 尾条 ---------- */

.page-disclaimer .guide-tail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: clamp(36px, 5vw, 58px);
  padding: clamp(22px, 3vw, 34px);
  background: rgba(7, 28, 23, .72);
  border: 2px solid var(--line-gold);
}

.page-disclaimer .guide-tail__text {
  max-width: 36em;
  margin: 0;
  font-size: var(--fs-18);
  line-height: 1.75;
  color: var(--ivory);
}

/* ---------- 右侧目录 ---------- */

.page-disclaimer .guide-rail {
  display: none;
}

.page-disclaimer .guide-rail__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: var(--fs-16);
  letter-spacing: .12em;
  color: var(--gold-pale);
}

.page-disclaimer .guide-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--line);
}

.page-disclaimer .guide-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0 9px 16px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--mist);
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-disclaimer .guide-rail__link:hover,
.page-disclaimer .guide-rail__link:focus-visible {
  color: var(--gold-pale);
  border-left-color: var(--gold);
}

.page-disclaimer .guide-rail__link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-disclaimer .guide-rail__num {
  font-family: var(--font-head);
  font-size: var(--fs-14);
  letter-spacing: .1em;
  color: var(--gold);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-disclaimer .guide-hero__index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .guide-prep__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 860px) {
  .page-disclaimer .guide-hero__lede {
    font-size: var(--fs-24);
  }

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

  .page-disclaimer .guide-timeline__item {
    padding: 26px 20px 26px 24px;
    border-bottom: none;
    border-left: 1px solid var(--line);
  }

  .page-disclaimer .guide-timeline__item.is-current {
    border-left-width: 2px;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .guide-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 22px;
  }

  .page-disclaimer .guide-grid > .g-4 {
    grid-column: span 4;
  }

  .page-disclaimer .guide-grid > .g-5 {
    grid-column: span 5;
  }

  .page-disclaimer .guide-grid > .g-6 {
    grid-column: span 6;
  }

  .page-disclaimer .guide-grid > .g-7 {
    grid-column: span 7;
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .guide-body {
    grid-template-columns: minmax(0, 1fr) var(--dd-rail-w);
    align-items: start;
  }

  .page-disclaimer .guide-rail {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (max-width: 480px) {
  .page-disclaimer .guide-notes__item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .page-disclaimer .guide-tail {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer *,
  .page-disclaimer *::before,
  .page-disclaimer *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}