.page-disclaimer {
  background: var(--bg);
  color: var(--fg);
}

.page-disclaimer .stm-top {
  padding-top: clamp(18px, 4vw, 34px);
}

/* ---------- 版本说明条 ---------- */
.page-disclaimer .stm-bar {
  margin-top: clamp(16px, 3vw, 30px);
  background: var(--paper);
  color: var(--ink);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.page-disclaimer .stm-version {
  display: block;
}

.page-disclaimer .stm-version > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding: 14px 0;
  cursor: pointer;
  list-style: none;
}

.page-disclaimer .stm-version > summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .stm-version__no {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--clay);
}

.page-disclaimer .stm-version__title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-disclaimer .stm-version__hint {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: #565b60;
}

.page-disclaimer .stm-version__toggle {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  border-bottom: 1px solid var(--orange);
  white-space: nowrap;
}

.page-disclaimer .stm-version__toggle::after {
  content: "展开";
}

.page-disclaimer .stm-version[open] .stm-version__toggle::after {
  content: "收起";
}

.page-disclaimer .stm-version__body {
  display: grid;
  gap: 10px;
  padding: 16px 0 22px;
  border-top: 1px solid rgba(14, 14, 16, 0.16);
  max-width: 74ch;
}

.page-disclaimer .stm-version__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-disclaimer .stm-version__body a {
  color: var(--clay);
  text-decoration: none;
  border-bottom: 1px solid rgba(180, 103, 74, 0.6);
  transition: border-color var(--t-fast) var(--ease);
}

.page-disclaimer .stm-version__body a:hover {
  border-bottom-color: var(--ink);
}

/* ---------- 页首 ---------- */
.page-disclaimer .stm-hero {
  padding: clamp(34px, 6vw, 76px) 0 0;
  background:
    radial-gradient(115% 78% at 90% 0%, rgba(23, 224, 210, 0.10), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .stm-hero__label {
  margin: 0 0 14px;
  color: var(--cyan);
}

.page-disclaimer .stm-hero__title {
  margin: 0;
  font-size: clamp(2.1rem, 6.4vw, 4.6rem);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 20ch;
}

.page-disclaimer .stm-hero__lead {
  margin: clamp(18px, 3vw, 30px) 0 0;
  max-width: 40ch;
  color: var(--paper);
}

.page-disclaimer .stm-hero__meta {
  list-style: none;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fg-dim);
}

.page-disclaimer .stm-hero__meta li {
  border-left: 1px solid var(--gold);
  padding-left: 10px;
}

.page-disclaimer .stm-hero__media {
  margin: clamp(28px, 5vw, 56px) 0 0;
}

.page-disclaimer .stm-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 8 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(0.88) contrast(1.06);
}

.page-disclaimer .stm-hero__media .media__cap {
  display: block;
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--fg-dim);
}

/* ---------- 条款索引 ---------- */
.page-disclaimer .stm-index {
  padding: clamp(26px, 4vw, 46px) 0 0;
}

.page-disclaimer .stm-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: 1px solid var(--line);
}

.page-disclaimer .stm-index__list li {
  border-bottom: 1px solid var(--line);
  min-width: 0;
}

.page-disclaimer .stm-index__list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 4px;
  font-size: 16px;
  color: var(--paper);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-disclaimer .stm-index__list a:hover,
.page-disclaimer .stm-index__list a:focus-visible {
  border-left-color: var(--orange);
  color: var(--orange);
}

.page-disclaimer .stm-index__num {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gray);
}

/* ---------- 条款正文 ---------- */
.page-disclaimer .stm-clauses {
  padding: clamp(32px, 5vw, 64px) 0 clamp(50px, 7vw, 100px);
}

.page-disclaimer .clause {
  position: relative;
  padding: clamp(26px, 4vw, 44px) 0 clamp(26px, 4vw, 44px) 20px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 90px;
}

.page-disclaimer .clause::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(30px, 4vw, 48px);
  width: 2px;
  height: 30px;
  background: var(--gold);
}

.page-disclaimer .clause:first-child {
  border-top: 0;
}

.page-disclaimer .clause__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

.page-disclaimer .clause__num {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-disclaimer .clause__title {
  margin: 0;
  font-size: clamp(1.35rem, 3.4vw, 2.05rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.015em;
}

.page-disclaimer .clause__body {
  margin-top: 16px;
  max-width: 44em;
  min-width: 0;
}

.page-disclaimer .clause__body .prose {
  max-width: 38ch;
  color: var(--fg);
}

.page-disclaimer .stm-list {
  list-style: none;
  counter-reset: stm;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-disclaimer .stm-list > li {
  position: relative;
  counter-increment: stm;
  padding: 14px 0 14px clamp(38px, 9vw, 50px);
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--fg);
  border-top: 1px solid rgba(58, 63, 68, 0.6);
  min-width: 0;
  overflow-wrap: break-word;
}

.page-disclaimer .stm-list > li::before {
  content: counter(stm, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gray);
}

.page-disclaimer .clause__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 224, 210, 0.45);
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-disclaimer .clause__body a:hover,
.page-disclaimer .clause__body a:focus-visible {
  border-bottom-color: var(--cyan);
  color: var(--paper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-disclaimer .stm-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .stm-index__list li {
    padding-right: 24px;
  }

  .page-disclaimer .clause {
    padding-left: 28px;
  }

  .page-disclaimer .clause::before {
    height: 36px;
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .stm-hero__title {
    max-width: 17ch;
  }

  .page-disclaimer .stm-hero__media {
    margin-top: 64px;
  }

  .page-disclaimer .clause {
    display: grid;
    grid-template-columns: minmax(0, 22rem) minmax(0, 1fr);
    gap: 0 48px;
  }

  .page-disclaimer .clause__body {
    margin-top: 0;
  }

  .page-disclaimer .clause__title {
    max-width: 14ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .stm-index__list a,
  .page-disclaimer .clause__body a,
  .page-disclaimer .stm-version__body a {
    transition: none;
  }
}