.page-disclaimer {
  --t-measure: 66ch;
  display: block;
  background: var(--snow);
}

.page-disclaimer .t-progress {
  position: sticky;
  top: 0;
  z-index: 6;
  height: 2px;
  background: var(--line-soft);
}

.page-disclaimer .t-progress__bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--sunset);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .12s linear;
}

/* 首屏 */
.page-disclaimer .t-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink-2);
  color: var(--snow);
}

.page-disclaimer .t-hero__img {
  position: absolute;
  inset: 0;
}

.page-disclaimer .t-hero__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .26;
}

.page-disclaimer .t-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(11, 15, 20, .92) 0%, rgba(15, 30, 46, .78) 58%, rgba(27, 111, 168, .55) 100%);
}

.page-disclaimer .t-hero__inner {
  position: relative;
  z-index: 2;
  padding-top: 40px;
  padding-bottom: 40px;
}

.page-disclaimer .t-hero__crumbs {
  margin-bottom: 22px;
  color: var(--lake-soft);
}

.page-disclaimer .t-hero__crumbs a {
  color: var(--lake-soft);
  text-decoration: none;
}

.page-disclaimer .t-hero__crumbs a:hover,
.page-disclaimer .t-hero__crumbs a:focus-visible {
  color: var(--sunset);
}

.page-disclaimer .t-hero__eyebrow {
  color: var(--sunset);
  margin-bottom: 14px;
}

.page-disclaimer .t-hero__title {
  font-size: clamp(34px, 8vw, 76px);
  line-height: 1.02;
  letter-spacing: -.02em;
  font-weight: 900;
  max-width: 20ch;
  margin: 0 0 20px;
  color: var(--snow);
}

.page-disclaimer .t-hero__lead {
  max-width: 62ch;
  color: rgba(244, 247, 249, .84);
  line-height: 1.85;
  margin: 0 0 28px;
}

.page-disclaimer .t-hero__meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 14px;
  color: rgba(244, 247, 249, .78);
}

.page-disclaimer .t-hero__meta li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  border-left: 2px solid var(--lake);
  padding-left: 12px;
}

.page-disclaimer .t-hero__meta .mono {
  color: var(--lake-soft);
  font-size: 12px;
  letter-spacing: .08em;
}

/* 主布局 */
.page-disclaimer .t-layout {
  display: grid;
  gap: 28px;
  padding-top: 36px;
  padding-bottom: 72px;
}

/* 条款索引 */
.page-disclaimer .t-index {
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.page-disclaimer .t-index__title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--print);
}

.page-disclaimer .t-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .t-index__link {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--ink-70);
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 8px 12px;
  font-size: 14px;
  transition: color .16s var(--ease), border-color .16s var(--ease), transform .16s var(--ease);
}

.page-disclaimer .t-index__num {
  color: var(--lake);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-disclaimer .t-index__link:hover,
.page-disclaimer .t-index__link:focus-visible {
  color: var(--ink);
  border-color: var(--sunset);
  transform: translateY(-2px);
  outline: none;
}

.page-disclaimer .t-index__link:focus-visible {
  box-shadow: inset 0 0 0 2px var(--sunset);
}

.page-disclaimer .t-index__foot {
  margin: 16px 0 0;
  font-size: 13px;
  color: var(--ink-50);
  line-height: 1.7;
}

.page-disclaimer .t-index__foot a {
  color: var(--lake);
}

/* 条款正文 */
.page-disclaimer .t-body {
  min-width: 0;
}

.page-disclaimer .t-sec {
  padding: 30px 0;
  border-top: 1px solid var(--line-soft);
}

.page-disclaimer .t-sec__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
}

.page-disclaimer .t-sec__idx {
  flex: none;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--sunset);
  border-bottom: 2px solid var(--sunset);
  padding-bottom: 2px;
}

.page-disclaimer .t-sec__title {
  margin: 0;
  font-size: clamp(20px, 4.4vw, 28px);
  line-height: 1.3;
  color: var(--ink);
  font-weight: 800;
}

.page-disclaimer .t-sec p {
  max-width: var(--t-measure);
  margin: 0 0 1.15em;
  color: var(--ink-70);
  line-height: 1.85;
}

.page-disclaimer .t-sec p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .t-sec a {
  color: var(--lake);
  text-decoration-color: var(--lake-soft);
  text-underline-offset: 3px;
}

.page-disclaimer .t-sec a:hover,
.page-disclaimer .t-sec a:focus-visible {
  color: var(--lake-deep);
  text-decoration-color: var(--sunset);
}

.page-disclaimer .t-list {
  list-style: none;
  margin: 0 0 1.2em;
  padding: 0;
  max-width: var(--t-measure);
}

.page-disclaimer .t-list li {
  position: relative;
  padding: 8px 0 8px 18px;
  color: var(--ink-70);
  line-height: 1.8;
  border-bottom: 1px dashed var(--line-soft);
}

.page-disclaimer .t-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 7px;
  height: 7px;
  background: var(--lake);
}

.page-disclaimer .t-list strong {
  color: var(--ink);
  font-weight: 700;
}

/* 折叠补充说明 */
.page-disclaimer .t-note {
  margin: 22px 0 0;
  border: 1px solid var(--line);
  background: var(--paper);
  box-shadow: var(--shadow-paper);
  max-width: var(--t-measure);
}

.page-disclaimer .t-note > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-disclaimer .t-note > summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .t-note > summary::before {
  content: "+";
  font-family: var(--mono);
  font-size: 15px;
  color: var(--sunset);
}

.page-disclaimer .t-note[open] > summary::before {
  content: "–";
}

.page-disclaimer .t-note > summary:focus-visible {
  outline: 2px solid var(--sunset);
  outline-offset: 2px;
}

.page-disclaimer .t-note__body {
  padding: 0 16px 16px;
}

.page-disclaimer .t-note__body p {
  margin: 0;
  max-width: 60ch;
  color: var(--ink-70);
  line-height: 1.8;
}

/* 术语 */
.page-disclaimer .t-term {
  position: relative;
  border-bottom: 1px dashed var(--lake);
  cursor: help;
  color: var(--ink);
}

.page-disclaimer .t-term:focus-visible {
  outline: 2px solid var(--sunset);
  outline-offset: 2px;
}

.page-disclaimer .t-term__def {
  position: absolute;
  left: 0;
  bottom: calc(100% + 10px);
  width: min(280px, 76vw);
  padding: 12px 14px;
  background: var(--ink);
  color: var(--snow);
  font-size: 13px;
  line-height: 1.7;
  border-left: 3px solid var(--sunset);
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity .16s var(--ease), transform .16s var(--ease), visibility .16s linear;
  z-index: 5;
}

.page-disclaimer .t-term:hover .t-term__def,
.page-disclaimer .t-term:focus .t-term__def,
.page-disclaimer .t-term:focus-within .t-term__def {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* 结尾入口 */
.page-disclaimer .t-close {
  margin-top: 16px;
  padding: 28px 24px;
  background: var(--ink-2);
  color: var(--snow);
  border-left: 4px solid var(--sunset);
}

.page-disclaimer .t-close__idx {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--lake-soft);
}

.page-disclaimer .t-close__title {
  margin: 0 0 20px;
  color: var(--snow);
  font-size: clamp(20px, 4.5vw, 26px);
  font-weight: 800;
}

.page-disclaimer .t-close__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-disclaimer .t-close__links .btn {
  text-decoration: none;
}

.page-disclaimer .t-close__links .btn--ghost {
  border-color: var(--line-dark);
  color: var(--snow);
  background: transparent;
}

.page-disclaimer .t-close__links .btn--ghost:hover,
.page-disclaimer .t-close__links .btn--ghost:focus-visible {
  border-color: var(--sunset);
  color: var(--sunset);
}

.page-disclaimer .t-sec,
.page-disclaimer .t-close {
  scroll-margin-top: 24px;
}

@media (min-width: 768px) {
  .page-disclaimer .t-hero__inner {
    padding-top: 56px;
    padding-bottom: 56px;
  }

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

  .page-disclaimer .t-layout {
    padding-top: 48px;
  }

  .page-disclaimer .t-sec {
    padding: 40px 0;
  }

  .page-disclaimer .t-close {
    padding: 36px 32px;
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .t-layout {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-disclaimer .t-index {
    position: sticky;
    top: 24px;
  }

  .page-disclaimer .t-index__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-disclaimer .t-index__list li + li {
    margin-top: 2px;
  }

  .page-disclaimer .t-index__link {
    display: grid;
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 10px;
    align-items: center;
    border: 0;
    border-left: 3px solid var(--line-soft);
    background: transparent;
    padding: 9px 10px;
    white-space: normal;
  }

  .page-disclaimer .t-index__link:hover,
  .page-disclaimer .t-index__link:focus-visible {
    transform: none;
    border-left-color: var(--sunset);
    background: rgba(27, 111, 168, .07);
  }

  .page-disclaimer .t-index__link:focus-visible {
    box-shadow: inset 0 0 0 2px var(--sunset);
  }

  .page-disclaimer .t-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1280px) {
  .page-disclaimer .t-layout {
    grid-template-columns: 272px minmax(0, 1fr);
    gap: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .t-progress__bar,
  .page-disclaimer .t-index__link,
  .page-disclaimer .t-term__def {
    transition: none;
  }
}
</main>