.page-disclaimer {
  --pd-rule: 1px solid var(--line);
}

/* ---------- 页头 ---------- */
.page-disclaimer .terms-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-2);
  border-bottom: var(--pd-rule);
}

.page-disclaimer .terms-hero__img {
  position: absolute;
  inset: 0;
  z-index: -2;
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  opacity: .4;
}

.page-disclaimer .terms-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(6, 17, 15, .5) 0%, rgba(6, 17, 15, .88) 58%, var(--ink) 100%),
    repeating-linear-gradient(90deg, rgba(34, 224, 200, .05) 0 1px, transparent 1px 72px);
  pointer-events: none;
}

.page-disclaimer .terms-hero__inner {
  position: relative;
  padding-top: 1.5rem;
  padding-bottom: 2.25rem;
}

.page-disclaimer .terms-hero__title {
  margin: .625rem 0 .875rem;
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-disclaimer .terms-hero__lead {
  max-width: 40em;
  margin: 0 0 1.5rem;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .terms-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  max-width: 40em;
  margin: 0;
  padding-top: .875rem;
  border-top: var(--pd-rule);
  font-size: var(--fs-note);
  color: var(--mist);
}

.page-disclaimer .terms-hero__ver {
  color: var(--gold);
  letter-spacing: .06em;
}

.page-disclaimer .terms-hero__dot {
  color: var(--line);
}

/* ---------- 双栏骨架 ---------- */
.page-disclaimer .terms-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  padding-bottom: 2.5rem;
}

/* ---------- 条款目录 ---------- */
.page-disclaimer .terms-index__title {
  margin: 0 0 .75rem;
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  letter-spacing: .16em;
  color: var(--mist-dim);
}

.page-disclaimer .terms-index__nav {
  display: flex;
  gap: .375rem;
  overflow-x: auto;
  padding-bottom: .75rem;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.page-disclaimer .terms-index__link {
  flex: none;
  display: inline-flex;
  align-items: baseline;
  gap: .375rem;
  padding: .375rem .75rem;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--card);
  color: var(--mist);
  font-size: var(--fs-note);
  line-height: 1.5;
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}

.page-disclaimer .terms-index__num {
  color: var(--gold);
  font-size: .75rem;
  letter-spacing: .04em;
}

.page-disclaimer .terms-index__link:hover,
.page-disclaimer .terms-index__link:focus-visible {
  color: var(--white);
  background: var(--cyan-soft);
  border-color: var(--cyan);
}

.page-disclaimer .terms-index__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 条款正文 ---------- */
.page-disclaimer .terms-sec {
  padding: 1.75rem 0 2.25rem;
  border-top: var(--pd-rule);
  scroll-margin-top: 1.5rem;
  transition: background-color var(--dur) var(--ease),
              outline-color var(--dur) var(--ease);
  outline: 1px solid transparent;
  outline-offset: .75rem;
}

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

.page-disclaimer .terms-sec:target {
  background-color: var(--ink-2);
  outline-color: var(--line);
  border-radius: var(--r-sm);
}

.page-disclaimer .terms-sec__head {
  display: flex;
  align-items: baseline;
  gap: .75rem;
  margin-bottom: .875rem;
}

.page-disclaimer .terms-sec__num {
  flex: none;
  padding: .3125rem .4375rem;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--card);
  color: var(--gold);
  font-size: .75rem;
  line-height: 1;
  letter-spacing: .04em;
  cursor: pointer;
  user-select: none;
  transition: color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}

.page-disclaimer .terms-sec__num:hover,
.page-disclaimer .terms-sec__num:focus-visible {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-disclaimer .terms-sec__num:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-disclaimer .terms-sec__title {
  margin: 0;
  font-size: clamp(1.25rem, 2.4vw, 1.5rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-disclaimer .terms-sec__body {
  max-width: 38em;
}

.page-disclaimer .terms-sec__body p {
  margin: 0 0 1rem;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .terms-sec__body p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .terms-sec__body strong {
  color: var(--white);
  font-weight: 600;
}

.page-disclaimer .terms-sec__body a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--dur) var(--ease);
}

.page-disclaimer .terms-sec__body a:hover,
.page-disclaimer .terms-sec__body a:focus-visible {
  color: var(--white);
}

/* ---------- 关键定义块 ---------- */
.page-disclaimer .terms-def {
  max-width: 38em;
  margin: 1.25rem 0;
  padding: .875rem 1rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background:
    repeating-linear-gradient(135deg, rgba(34, 224, 200, .055) 0 2px, transparent 2px 7px),
    var(--card);
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--mist);
}

.page-disclaimer .terms-def strong {
  color: var(--white);
  font-weight: 600;
}

/* ---------- 变更记录折叠 ---------- */
.page-disclaimer .terms-log {
  max-width: 38em;
  margin-top: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--card);
  overflow: hidden;
}

.page-disclaimer .terms-log summary {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  line-height: 1.6;
  color: var(--cyan);
  cursor: pointer;
  list-style: none;
}

.page-disclaimer .terms-log summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .terms-log summary::before {
  content: "+";
  font-size: 1rem;
  line-height: 1;
  color: var(--gold);
}

.page-disclaimer .terms-log[open] summary::before {
  content: "\2212";
}

.page-disclaimer .terms-log[open] summary {
  border-bottom: 1px dashed var(--line);
}

.page-disclaimer .terms-log summary:hover {
  color: var(--white);
}

.page-disclaimer .terms-log summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-disclaimer .terms-log__list {
  margin: 0;
  padding: .5rem 1rem 1rem;
  list-style: none;
}

.page-disclaimer .terms-log__list li {
  padding: .625rem 0;
  border-top: 1px dashed var(--line);
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--mist);
}

.page-disclaimer .terms-log__list li:first-child {
  border-top: 0;
}

.page-disclaimer .terms-log__list .mono {
  display: block;
  margin-bottom: .1875rem;
  color: var(--gold);
  font-size: var(--fs-note);
  letter-spacing: .03em;
}

/* ---------- 页尾版本条 ---------- */
.page-disclaimer .terms-foot {
  border-top: var(--pd-rule);
  background: var(--ink-2);
}

.page-disclaimer .terms-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .375rem .75rem;
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
  font-size: var(--fs-note);
}

.page-disclaimer .terms-strip__ver {
  color: var(--gold);
  letter-spacing: .05em;
}

.page-disclaimer .terms-strip__dot {
  color: var(--line);
}

.page-disclaimer .terms-strip__note {
  color: var(--mist-dim);
  font-family: var(--font-sans);
  line-height: 1.6;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-disclaimer .terms-hero__inner {
    padding-top: 2rem;
    padding-bottom: 3rem;
  }

  .page-disclaimer .terms-body {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 3.5rem;
    padding-top: 3rem;
    padding-bottom: 3.5rem;
  }

  .page-disclaimer .terms-index {
    position: sticky;
    top: 1.5rem;
    align-self: start;
  }

  .page-disclaimer .terms-index__nav {
    flex-direction: column;
    gap: 0;
    overflow-x: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--line);
  }

  .page-disclaimer .terms-index__link {
    display: flex;
    align-items: baseline;
    padding: .5rem .5rem .5rem .875rem;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: transparent;
    font-size: var(--fs-sm);
    white-space: normal;
  }

  .page-disclaimer .terms-index__link:hover,
  .page-disclaimer .terms-index__link:focus-visible {
    background: var(--cyan-soft);
    border-left-color: var(--cyan);
    color: var(--white);
  }

  .page-disclaimer .terms-sec {
    padding: 2.25rem 0 3rem;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .terms-index__link,
  .page-disclaimer .terms-sec,
  .page-disclaimer .terms-sec__num,
  .page-disclaimer .terms-sec__body a {
    transition: none;
  }
}