.page-disclaimer {
  display: block;
  background: var(--nfs-indigo);
}

/* ---------- 封面：档案封面式开场 ---------- */
.page-disclaimer .agreement-cover {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--nfs-charcoal);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .agreement-cover > img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: .38;
  filter: saturate(.6) contrast(1.1);
}

.page-disclaimer .cover-veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(130% 96% at 10% 6%, rgba(14, 21, 38, .30) 0%, rgba(5, 8, 15, .95) 68%),
    repeating-linear-gradient(0deg, var(--grid-cyan) 0 1px, transparent 1px 76px),
    repeating-linear-gradient(90deg, var(--grid-cyan) 0 1px, transparent 1px 76px);
}

.page-disclaimer .cover-seal {
  display: none;
}

.page-disclaimer .cover-inner {
  position: relative;
  z-index: 1;
  padding-top: 48px;
  padding-bottom: 56px;
}

.page-disclaimer .cover-eyebrow {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--nfs-amber);
}

.page-disclaimer h1 {
  margin: 14px 0 0;
  max-width: 15ch;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(34px, 8vw, 82px);
  line-height: 1.05;
  letter-spacing: .07em;
  color: var(--nfs-white);
}

.page-disclaimer .cover-lede {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--nfs-mist);
}

.page-disclaimer .cover-meta {
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  max-width: 760px;
}

.page-disclaimer .cover-meta li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.page-disclaimer .meta-k {
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--nfs-mist);
}

.page-disclaimer .meta-v {
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--nfs-white);
}

.page-disclaimer .clause-nav {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-disclaimer .clause-nav a {
  padding: 7px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-tag);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--nfs-mist);
  text-decoration: none;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-disclaimer .clause-nav a:hover,
.page-disclaimer .clause-nav a:focus-visible {
  color: var(--nfs-amber-soft);
  border-color: rgba(240, 162, 44, .55);
  background: rgba(240, 162, 44, .09);
}

/* ---------- 正文骨架与阅读列 ---------- */
.page-disclaimer .agreement-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding-top: 52px;
  padding-bottom: 72px;
}

.page-disclaimer .clauses {
  min-width: 0;
  border-top: 1px solid var(--line-strong);
}

/* ---------- 条款：可折叠章节 ---------- */
.page-disclaimer .clause {
  scroll-margin-top: calc(var(--header-h) + 28px);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .clause-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 14px;
  padding: 22px 0 18px;
  cursor: pointer;
  list-style: none;
}

.page-disclaimer .clause-head::-webkit-details-marker {
  display: none;
}

.page-disclaimer .clause-head::marker {
  content: "";
}

.page-disclaimer .clause-head:focus-visible {
  outline: 1px solid var(--nfs-cyan);
  outline-offset: 4px;
}

.page-disclaimer .clause-idx {
  padding-top: 6px;
  font-size: 12.5px;
  letter-spacing: .12em;
  color: var(--nfs-cyan);
}

.page-disclaimer .clause-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 3.6vw, 26px);
  line-height: 1.3;
  letter-spacing: .05em;
  color: var(--nfs-white);
}

.page-disclaimer .clause-toggle {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 8px;
  border: 1px solid var(--line-strong);
  border-radius: 1px;
  transition: border-color .2s var(--ease);
}

.page-disclaimer .clause-toggle::before,
.page-disclaimer .clause-toggle::after {
  content: "";
  position: absolute;
  background: var(--nfs-mist);
  transition: transform .2s var(--ease), background-color .2s var(--ease);
}

.page-disclaimer .clause-toggle::before {
  left: 2px;
  top: 6px;
  width: 8px;
  height: 1px;
}

.page-disclaimer .clause-toggle::after {
  left: 6px;
  top: 2px;
  width: 1px;
  height: 8px;
}

.page-disclaimer .clause[open] .clause-toggle {
  border-color: rgba(240, 162, 44, .5);
}

.page-disclaimer .clause[open] .clause-toggle::before {
  background: var(--nfs-amber);
}

.page-disclaimer .clause[open] .clause-toggle::after {
  transform: scaleY(0);
}

.page-disclaimer .clause-body {
  padding: 0 0 26px;
}

.page-disclaimer .clause-body p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(237, 241, 247, .84);
}

.page-disclaimer .clause-body p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .clause-body a {
  color: var(--nfs-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 200, .35);
}

.page-disclaimer .clause-body a:hover,
.page-disclaimer .clause-body a:focus-visible {
  color: var(--nfs-amber-soft);
  border-bottom-color: rgba(247, 206, 133, .55);
}

.page-disclaimer .clause-list {
  margin: 12px 0 14px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-disclaimer .clause-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(237, 241, 247, .72);
}

.page-disclaimer .clause-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 10px;
  height: 1px;
  background: var(--nfs-cyan);
}

/* ---------- 右侧批注列 ---------- */
.page-disclaimer .marginalia {
  min-width: 0;
}

.page-disclaimer .marginalia-inner {
  padding-top: 4px;
}

.page-disclaimer .glossary {
  margin: 16px 0 0;
  display: grid;
  gap: 16px;
}

.page-disclaimer .glossary dt {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--nfs-cyan);
}

.page-disclaimer .glossary dd {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--nfs-mist);
}

.page-disclaimer .marginalia-note {
  margin: 26px 0 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--nfs-amber);
  background: rgba(27, 36, 56, .5);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--nfs-mist);
}

/* ---------- 尾注：相关说明 ---------- */
.page-disclaimer .agreement-tail {
  grid-column: 1 / -1;
  margin-top: 8px;
  padding-top: 28px;
  border-top: 1px solid var(--line-strong);
}

.page-disclaimer .agreement-tail h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .2em;
  color: var(--nfs-mist);
}

.page-disclaimer .tail-links {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-disclaimer .tail-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-tag);
  font-size: 15px;
  line-height: 1.6;
  color: var(--nfs-white);
  text-decoration: none;
  transition: border-color .2s var(--ease), background-color .2s var(--ease), color .2s var(--ease);
}

.page-disclaimer .tail-links a:hover,
.page-disclaimer .tail-links a:focus-visible {
  border-color: rgba(53, 224, 200, .5);
  background: rgba(53, 224, 200, .06);
  color: var(--nfs-cyan);
}

.page-disclaimer .tail-arrow {
  flex: none;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--nfs-mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-disclaimer .cover-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 24px;
  }

  .page-disclaimer .tail-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 20px;
  }
}

@media (min-width: 768px) {
  .page-disclaimer .cover-inner {
    padding-top: 72px;
    padding-bottom: 76px;
  }

  .page-disclaimer .clause-body {
    padding-left: 44px;
    max-width: 70ch;
  }

  .page-disclaimer .clause-list {
    margin-top: 14px;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .cover-seal {
    display: block;
    position: absolute;
    right: 5%;
    top: 50%;
    width: 168px;
    height: 168px;
    z-index: 0;
    transform: translateY(-50%) rotate(-9deg);
    border: 1px solid rgba(240, 162, 44, .34);
    pointer-events: none;
  }

  .page-disclaimer .cover-seal::before {
    content: "";
    position: absolute;
    inset: 16px;
    border: 1px solid rgba(53, 224, 200, .26);
  }

  .page-disclaimer .cover-seal::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 1px;
    background: rgba(240, 162, 44, .3);
  }

  .page-disclaimer .cover-inner {
    padding-top: 88px;
    padding-bottom: 92px;
  }

  .page-disclaimer .agreement-body {
    grid-template-columns: minmax(0, 7.4fr) minmax(0, 3.6fr);
    gap: 56px;
    align-items: start;
    padding-top: 68px;
    padding-bottom: 96px;
  }

  .page-disclaimer .marginalia-inner {
    position: sticky;
    top: calc(var(--header-h) + 32px);
    padding-left: 28px;
    border-left: 1px solid var(--line);
  }

  .page-disclaimer .clause-head {
    padding: 26px 0 20px;
  }
}

@media (min-width: 1240px) {
  .page-disclaimer .agreement-body {
    grid-template-columns: minmax(0, 7.8fr) minmax(0, 3.4fr);
    gap: 72px;
  }

  .page-disclaimer .cover-lede {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .clause-toggle,
  .page-disclaimer .clause-toggle::before,
  .page-disclaimer .clause-toggle::after,
  .page-disclaimer .clause-nav a,
  .page-disclaimer .tail-links a {
    transition: none;
  }
}