/* ============================================================
   使用指引 /usage/ —— 页面专属样式（作用域：.page-disclaimer）
   ============================================================ */

.page-disclaimer {
  --disc-pad: clamp(36px, 6.5vw, 88px);
  --disc-no-col: clamp(56px, 8vw, 100px);
  --disc-text: rgba(244, 241, 232, .84);
  --disc-text-soft: rgba(244, 241, 232, .6);
  --disc-measure: 620px;
  position: relative;
  background: var(--ink-800);
  color: var(--cream);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-disclaimer h1,
.page-disclaimer h2,
.page-disclaimer h3 {
  font-family: var(--font-serif);
  letter-spacing: .01em;
  margin: 0;
}

.page-disclaimer p {
  margin: 0;
}

.page-disclaimer .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

.page-disclaimer .eyebrow {
  display: block;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
}

/* ---------- 首屏 ---------- */

.disc-hero {
  position: relative;
  padding: var(--disc-pad) 0 clamp(24px, 4vw, 44px);
  background:
    radial-gradient(130% 100% at 92% -10%, rgba(200, 164, 74, .16), transparent 62%),
    radial-gradient(90% 80% at 6% 110%, rgba(30, 95, 138, .18), transparent 66%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 100%);
  border-bottom: 1px solid var(--gold-line);
}

.disc-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.disc-hero__copy {
  min-width: 0;
}

.disc-hero .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}

.disc-hero .breadcrumb__link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .28s var(--ease), border-color .28s var(--ease);
}

.disc-hero .breadcrumb__link:hover,
.disc-hero .breadcrumb__link:focus-visible {
  color: var(--gold-light);
  border-bottom-color: var(--gold-line-strong);
}

.disc-hero .breadcrumb__sep {
  color: var(--gold-line-strong);
}

.disc-hero .breadcrumb__current {
  color: var(--cream);
}

.disc-hero__title {
  margin-top: 16px;
  font-size: clamp(28px, 5.2vw, 50px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--cream);
}

.disc-hero__lead {
  margin-top: 20px;
  max-width: var(--disc-measure);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.9;
  color: var(--disc-text);
}

.disc-hero__figure {
  margin: 0;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gold-line);
  background: linear-gradient(150deg, rgba(18, 58, 92, .55), rgba(7, 26, 22, .9));
  box-shadow: 0 40px 80px -50px rgba(0, 0, 0, .9);
}

.disc-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(200, 164, 74, .12), transparent 48%);
  pointer-events: none;
}

.disc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.82) contrast(1.04);
}

.disc-hero__caption {
  display: block;
  padding: 12px 18px 14px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
  border-top: 1px solid var(--gold-line);
  background: rgba(7, 26, 22, .55);
}

/* ---------- 顶部步骤条 ---------- */

.disc-steps {
  position: relative;
  z-index: 2;
  background: var(--ink-900);
  border-bottom: 1px solid var(--gold-line-strong);
}

.disc-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.disc-steps__item {
  min-width: 0;
  border-top: 1px solid var(--gold-line);
  border-right: 1px solid var(--gold-line);
}

.disc-steps__item:nth-child(2n) {
  border-right: 0;
}

.disc-steps__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-height: 44px;
  padding: 18px 16px 16px;
  text-decoration: none;
  color: var(--disc-text-soft);
  transition: color .3s var(--ease), background .3s var(--ease);
}

.disc-steps__link::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gold-line);
  opacity: .3;
  transition: opacity .3s var(--ease), background .3s var(--ease);
}

.disc-steps__link:hover,
.disc-steps__link:focus-visible {
  color: var(--cream);
  background: rgba(200, 164, 74, .07);
}

.disc-steps__link.is-active {
  color: var(--cream);
  background: linear-gradient(180deg, rgba(200, 164, 74, .13), rgba(200, 164, 74, .02));
}

.disc-steps__link.is-active::before {
  opacity: 1;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
}

.disc-steps__no {
  flex: none;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold);
}

.disc-steps__label {
  font-size: 14px;
  line-height: 1.4;
}

/* ---------- 条款组 ---------- */

.disc-group {
  padding: var(--disc-pad) 0;
  background: var(--ink-800);
  border-bottom: 1px solid var(--gold-line);
}

.disc-group--alt {
  background: var(--ink-700);
}

.disc-group--deep {
  background:
    radial-gradient(110% 90% at 100% 0%, rgba(200, 164, 74, .09), transparent 58%),
    var(--ink-900);
}

.disc-group__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 3vw, 36px);
  align-items: start;
}

.disc-group__no {
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1;
  font-weight: 500;
  color: var(--gold);
}

.disc-group__body {
  min-width: 0;
}

.disc-group__title {
  font-size: clamp(21px, 3vw, 32px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--cream);
}

.disc-group__lead {
  margin-top: 16px;
  max-width: var(--disc-measure);
  font-size: clamp(15px, 1.65vw, 16.5px);
  line-height: 1.92;
  color: var(--disc-text);
}

.disc-group__lead + .disc-group__lead {
  margin-top: 14px;
}

/* ---------- 数据行 ---------- */

.page-disclaimer .data-list {
  margin-top: 30px;
  border-top: 1px solid var(--gold-line);
}

.page-disclaimer .data-list__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px solid var(--gold-line);
}

.page-disclaimer .data-list__key {
  font-size: 12.5px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-disclaimer .data-list__val {
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--cream);
}

/* ---------- 暗红提醒块 ---------- */

.disc-note {
  margin-top: 30px;
  border: 1px solid rgba(122, 34, 48, .78);
  border-left: 3px solid var(--wine);
  border-radius: var(--radius-sm);
  background: rgba(122, 34, 48, .14);
  overflow: hidden;
}

.disc-note__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-serif);
  font-size: 15.5px;
  font-weight: 600;
  color: var(--cream);
}

.disc-note__summary::-webkit-details-marker {
  display: none;
}

.disc-note__summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--gold-light);
  transition: transform .3s var(--ease);
}

.disc-note[open] .disc-note__summary::after {
  transform: rotate(45deg);
}

.disc-note__summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -3px;
}

.disc-note__body {
  padding: 0 18px 18px;
  border-top: 1px solid rgba(122, 34, 48, .55);
  margin-top: 2px;
}

.disc-note__body p {
  padding-top: 16px;
  max-width: var(--disc-measure);
  font-size: 15px;
  line-height: 1.9;
  color: var(--disc-text);
}

/* ---------- 流程步骤 ---------- */

.disc-flow {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
}

.disc-flow__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-top: 1px dashed var(--gold-line-strong);
}

.disc-flow__item:last-child {
  border-bottom: 1px dashed var(--gold-line-strong);
}

.disc-flow__no {
  padding-top: 4px;
  font-size: 14px;
  color: var(--gold);
}

.disc-flow__text {
  min-width: 0;
}

.disc-flow__title {
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--cream);
}

.disc-flow__text p {
  margin-top: 8px;
  max-width: var(--disc-measure);
  font-size: 15px;
  line-height: 1.88;
  color: var(--disc-text);
}

/* ---------- 要点列表 ---------- */

.disc-bullets {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.disc-bullets__item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--gold-line);
}

.disc-bullets__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.disc-bullets__mark {
  display: block;
  width: 11px;
  height: 11px;
  margin-top: 9px;
  border: 1px solid var(--gold);
  border-radius: 2px;
  transform: rotate(45deg);
  background: linear-gradient(135deg, rgba(200, 164, 74, .38), transparent);
}

.disc-bullets__item p {
  max-width: var(--disc-measure);
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--disc-text);
}

/* ---------- 行内链接 ---------- */

.page-disclaimer .disc-inline-link {
  color: var(--gold-light);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line-strong);
  transition: color .28s var(--ease), border-color .28s var(--ease);
}

.page-disclaimer .disc-inline-link:hover,
.page-disclaimer .disc-inline-link:focus-visible {
  color: var(--cream);
  border-bottom-color: var(--gold-light);
}

/* ---------- 文末双入口 ---------- */

.disc-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.page-disclaimer .disc-cta .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 26px;
  border-radius: var(--radius-pill);
  font-size: 14.5px;
  letter-spacing: .04em;
  text-decoration: none;
  transition: transform .3s var(--ease), background .3s var(--ease), border-color .3s var(--ease), color .3s var(--ease);
}

.page-disclaimer .disc-cta .btn--primary {
  color: var(--ink-900);
  background: linear-gradient(120deg, var(--gold), var(--gold-light));
  border: 1px solid var(--gold-light);
  font-weight: 600;
}

.page-disclaimer .disc-cta .btn--ghost {
  color: var(--cream);
  background: transparent;
  border: 1px solid var(--gold-line-strong);
}

.page-disclaimer .disc-cta .btn:hover,
.page-disclaimer .disc-cta .btn:focus-visible {
  transform: translateY(-2px);
}

.page-disclaimer .disc-cta .btn--ghost:hover,
.page-disclaimer .disc-cta .btn--ghost:focus-visible {
  background: rgba(200, 164, 74, .12);
  border-color: var(--gold);
}

.disc-cta__note {
  margin-top: 22px;
  max-width: var(--disc-measure);
  font-size: 14px;
  line-height: 1.9;
  color: var(--disc-text-soft);
}

/* ---------- 显现动效 ---------- */

.page-disclaimer [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}

.page-disclaimer [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 平板及以上 ---------- */

@media (min-width: 760px) {
  .disc-steps__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .disc-steps__item {
    border-top: 0;
  }

  .disc-steps__item:nth-child(2n) {
    border-right: 1px solid var(--gold-line);
  }

  .disc-steps__item:last-child {
    border-right: 0;
  }

  .disc-steps__link {
    flex-direction: column;
    gap: 8px;
    padding: 20px 18px 18px;
  }
}

/* ---------- 桌面及以上 ---------- */

@media (min-width: 900px) {
  .disc-hero__inner {
    grid-template-columns: 5fr 7fr;
  }

  .disc-group__inner {
    grid-template-columns: var(--disc-no-col) minmax(0, 1fr);
    gap: clamp(24px, 3.5vw, 48px);
  }

  .disc-group__no::after {
    content: "";
    display: block;
    width: 40px;
    height: 1px;
    margin-top: 18px;
    background: var(--gold-line-strong);
  }

  .page-disclaimer .data-list__row {
    grid-template-columns: minmax(120px, 3fr) minmax(0, 9fr);
    gap: 24px;
    align-items: baseline;
    padding: 16px 0;
  }

  .page-disclaimer .data-list__key {
    padding-top: 2px;
  }
}

@media (min-width: 1100px) {
  .disc-hero {
    padding-top: clamp(52px, 7vw, 96px);
  }

  .disc-flow__item {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 22px;
  }
}

/* ---------- 降低动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-disclaimer .disc-cta .btn:hover,
  .page-disclaimer .disc-cta .btn:focus-visible {
    transform: none;
  }
}
<<<END>>>