.page-disclaimer {
  --disc-gap: 20px;
  --disc-term-pad: 20px;
  padding-bottom: 64px;
}

/* ---------- 首屏 ---------- */

.page-disclaimer .disc-hero {
  display: grid;
  gap: 32px;
  padding: 24px 0 44px;
}

.page-disclaimer .disc-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--text);
  max-width: 22ch;
}

.page-disclaimer .disc-hero__lede {
  margin: 18px 0 0;
  font-size: 17px;
  line-height: 1.9;
  color: var(--silver);
  max-width: 62ch;
}

.page-disclaimer .disc-hero__meta {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  max-width: 520px;
}

.page-disclaimer .disc-hero__meta li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-data);
  font-size: 13px;
  line-height: 1.6;
}

.page-disclaimer .disc-hero__k {
  color: var(--muted);
  letter-spacing: 0.08em;
  flex: none;
}

.page-disclaimer .disc-hero__v {
  color: var(--cyan);
  text-align: right;
  word-break: break-word;
}

.page-disclaimer .disc-hero__figure {
  margin: 0;
  position: relative;
}

.page-disclaimer .disc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--ink-800);
  position: relative;
  z-index: 1;
}

.page-disclaimer .disc-hero__figure::after {
  display: none;
}

.page-disclaimer .disc-hero__figcap {
  margin: 14px 0 0;
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1.75;
  letter-spacing: 0.02em;
  color: var(--muted);
}

/* ---------- 分隔带 ---------- */

.page-disclaimer .disc-tape {
  height: 5px;
  background-image: repeating-linear-gradient(
    90deg,
    var(--cyan) 0 22px,
    transparent 22px 48px
  );
  opacity: 0.5;
}

/* ---------- 条款区块 ---------- */

.page-disclaimer .disc-block {
  padding: 44px 0 4px;
}

.page-disclaimer .disc-block + .disc-block {
  border-top: 1px solid var(--line);
  margin-top: 40px;
}

.page-disclaimer .disc-block__frame {
  position: relative;
  padding-top: 14px;
}

.page-disclaimer .disc-block__frame::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 88px;
  height: 3px;
  background: var(--cyan);
}

.page-disclaimer .disc-block__frame::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 7px;
  width: 88px;
  height: 1px;
  background: var(--orange);
  opacity: 0.75;
}

/* ---------- 条款清单（左名右释） ---------- */

.page-disclaimer .disc-terms {
  margin: 26px 0 0;
  border-top: 1px solid var(--line);
}

.page-disclaimer .disc-term {
  position: relative;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-term--edge {
  padding-left: 18px;
}

.page-disclaimer .disc-term--edge::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 2px;
  background: var(--orange);
}

.page-disclaimer .disc-term__label {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-disclaimer .disc-term__no {
  flex: none;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-disclaimer .disc-term__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.005em;
  color: var(--text);
}

.page-disclaimer .disc-term__body {
  margin-top: 12px;
}

.page-disclaimer .disc-term__body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

.page-disclaimer .disc-term__body p + p {
  margin-top: 12px;
}

/* ---------- 可展开补充 ---------- */

.page-disclaimer .disc-more {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-disclaimer .disc-more > summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  transition: color 160ms var(--ease);
}

.page-disclaimer .disc-more > summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .disc-more > summary::before {
  content: "+";
  font-size: 15px;
  line-height: 1;
}

.page-disclaimer .disc-more[open] > summary::before {
  content: "−";
}

.page-disclaimer .disc-more > summary:hover {
  color: var(--paper);
}

.page-disclaimer .disc-more > summary:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 3px;
}

.page-disclaimer .disc-more__panel {
  margin-top: 14px;
  padding: 16px 18px;
  background: var(--ink-800);
  border-left: 2px solid var(--mid);
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver);
}

.page-disclaimer .disc-more__panel p {
  margin: 0;
}

.page-disclaimer .disc-more__panel ul {
  margin: 0;
  padding-left: 18px;
}

.page-disclaimer .disc-more__panel li + li {
  margin-top: 8px;
}

/* ---------- 引用规范清单 ---------- */

.page-disclaimer .disc-rules {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-disclaimer .disc-rules__item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-rules__code {
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--orange);
  padding-top: 4px;
}

.page-disclaimer .disc-rules__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-disclaimer .disc-rules__text strong {
  font-weight: 600;
  color: var(--cyan);
}

/* ---------- 联系块 ---------- */

.page-disclaimer .disc-contact {
  margin-top: 30px;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-disclaimer .disc-contact__intro {
  padding: 24px 20px;
}

.page-disclaimer .disc-contact__intro p {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

.page-disclaimer .disc-contact__intro .btn + .btn {
  margin-top: 12px;
}

.page-disclaimer .disc-contact__rows {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-disclaimer .disc-contact__row {
  padding: 13px 20px;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-contact__row:last-child {
  border-bottom: 0;
}

.page-disclaimer .disc-contact__k {
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-disclaimer .disc-contact__v {
  margin: 4px 0 0;
  font-family: var(--font-data);
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
  word-break: break-word;
}

.page-disclaimer .disc-contact__sub {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 页尾回顶 ---------- */

.page-disclaimer .disc-backtop {
  margin-top: 52px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.page-disclaimer .disc-backtop__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-decoration: none;
  transition: background-color 160ms var(--ease), color 160ms var(--ease);
}

.page-disclaimer .disc-backtop__link:hover,
.page-disclaimer .disc-backtop__link:focus-visible {
  background: var(--cyan);
  color: var(--on-accent);
}

.page-disclaimer .disc-backtop__glyph {
  font-size: 14px;
  line-height: 1;
}

.page-disclaimer .disc-backtop__note {
  margin: 0;
  flex: 1 1 260px;
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 平板及以上 ---------- */

@media (min-width: 780px) {
  .page-disclaimer .disc-term {
    display: grid;
    grid-template-columns: minmax(170px, 1fr) minmax(0, 2.5fr);
    gap: 40px;
    padding: 26px 0 26px 22px;
    align-items: start;
  }

  .page-disclaimer .disc-term--edge {
    padding-left: 22px;
  }

  .page-disclaimer .disc-term--edge::before {
    top: 26px;
    bottom: 26px;
  }

  .page-disclaimer .disc-term__label {
    display: block;
    position: sticky;
    top: calc(var(--bar-h) + 16px);
  }

  .page-disclaimer .disc-term__no {
    display: block;
    margin-bottom: 8px;
  }

  .page-disclaimer .disc-term__body {
    margin-top: 0;
  }

  .page-disclaimer .disc-contact {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }

  .page-disclaimer .disc-contact__intro .btn + .btn {
    margin-top: 0;
    margin-left: 10px;
  }

  .page-disclaimer .disc-contact__rows {
    border-top: 0;
    border-left: 1px solid var(--line);
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 1000px) {
  .page-disclaimer .disc-hero {
    grid-template-columns: minmax(0, 1.5fr) minmax(220px, 0.85fr);
    gap: 52px;
    padding: 36px 0 56px;
    align-items: start;
  }

  .page-disclaimer .disc-hero__title {
    font-size: 44px;
  }

  .page-disclaimer .disc-hero__body {
    padding-top: 6px;
  }

  .page-disclaimer .disc-hero__figure {
    margin-top: 10px;
  }

  .page-disclaimer .disc-hero__figure::after {
    display: block;
    content: "";
    position: absolute;
    inset: 14px -14px -14px 14px;
    border: 1px solid var(--orange);
    pointer-events: none;
  }

  .page-disclaimer .disc-block {
    padding-top: 52px;
  }

  .page-disclaimer .disc-rules__item {
    grid-template-columns: 96px minmax(0, 1fr);
    padding: 20px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-backtop__link,
  .page-disclaimer .disc-more > summary {
    transition: none;
  }
}