/* ===== 页面：使用协议 ===== */
.page-disclaimer {
  --doc-measure: 58ch;
  --doc-line: 1px solid var(--grid);
  --doc-pad-y: clamp(30px, 5vw, 58px);
  display: block;
  background-color: var(--navy-900);
  color: var(--text);
  font-family: var(--font-cn);
}

/* ---------- 页首 ---------- */
.page-disclaimer .doc-hero {
  position: relative;
  border-bottom: var(--doc-line);
  background-color: var(--navy-900);
  background-image:
    linear-gradient(to right, rgba(30, 58, 80, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 58, 80, 0.5) 1px, transparent 1px);
  background-size: 96px 96px;
  background-position: -1px -1px;
  overflow: hidden;
}

.page-disclaimer .doc-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 90% at 12% 0%, rgba(23, 224, 200, 0.12), transparent 62%);
  pointer-events: none;
}

.page-disclaimer .doc-hero-inner {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--header-h) + clamp(32px, 6vw, 82px));
  padding-bottom: clamp(30px, 5vw, 58px);
}

.page-disclaimer .breadcrumb {
  margin-bottom: clamp(26px, 4vw, 48px);
}

.page-disclaimer .doc-head-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 64px);
}

.page-disclaimer .doc-head-main .eyebrow {
  margin: 0 0 18px;
}

.page-disclaimer .doc-head-main h1 {
  margin: 0 0 22px;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: clamp(36px, 6.4vw, 74px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-disclaimer .doc-lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.1vw, 18px);
  line-height: 1.85;
  color: var(--text);
}

.page-disclaimer .meta-list {
  margin: 0;
  border-top: var(--doc-line);
}

.page-disclaimer .meta-list > div {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 14px;
  padding: 12px 0;
  border-bottom: var(--doc-line);
}

.page-disclaimer .meta-list dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
  line-height: 1.7;
}

.page-disclaimer .meta-list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

.page-disclaimer .doc-visual {
  margin: clamp(30px, 5vw, 56px) 0 0;
  border-radius: 2px;
}

.page-disclaimer .doc-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 正文区 ---------- */
.page-disclaimer .doc-body {
  padding-top: clamp(34px, 6vw, 72px);
  padding-bottom: clamp(10px, 2vw, 24px);
}

/* 摘要条 */
.page-disclaimer .doc-abstract {
  margin-bottom: clamp(30px, 5vw, 56px);
  border: 1px solid var(--grid);
  background-color: var(--navy-800);
  border-radius: 2px;
}

.page-disclaimer .doc-abstract > summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px clamp(16px, 2.4vw, 26px);
  cursor: pointer;
  list-style: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease-out);
}

.page-disclaimer .doc-abstract > summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .doc-abstract[open] > summary {
  border-bottom-color: var(--grid);
}

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

.page-disclaimer .ab-idx {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--navy-900);
  background-color: var(--cyan);
  padding: 4px 8px;
  border-radius: 1px;
}

.page-disclaimer .ab-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
}

.page-disclaimer .ab-toggle {
  flex: none;
  margin-left: auto;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-disclaimer .ab-toggle::after {
  content: "+";
}

.page-disclaimer .doc-abstract[open] .ab-toggle::after {
  content: "−";
}

.page-disclaimer .ab-body {
  padding: clamp(14px, 2.2vw, 24px) clamp(16px, 2.4vw, 26px);
}

.page-disclaimer .toc {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.page-disclaimer .toc a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 10px 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid rgba(30, 58, 80, 0.7);
  transition: color 160ms var(--ease-out);
}

.page-disclaimer .toc a:hover,
.page-disclaimer .toc a:focus-visible {
  color: var(--cyan);
}

.page-disclaimer .toc .mono {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

/* 条款 */
.page-disclaimer .clause {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding: var(--doc-pad-y) 0;
  border-bottom: var(--doc-line);
}

.page-disclaimer .clause-no {
  order: -1;
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-disclaimer .clause:nth-of-type(3) .clause-no {
  color: var(--purple);
}

.page-disclaimer .clause:nth-of-type(4) .clause-no {
  color: var(--orange);
}

.page-disclaimer .clause:nth-of-type(5) .clause-no {
  color: var(--lime);
}

.page-disclaimer .clause-title {
  margin: 0 0 16px;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: clamp(21px, 2.2vw, 27px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-disclaimer .clause-main p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}

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

.page-disclaimer .clause-main a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 224, 200, 0.45);
  transition: border-color 160ms var(--ease-out);
}

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

.page-disclaimer .clause-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-disclaimer .clause-list li {
  position: relative;
  padding-left: 24px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text);
}

.page-disclaimer .clause-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 12px;
  height: 1px;
  background-color: var(--cyan);
}

.page-disclaimer .clause-list--alert li::before {
  background-color: var(--orange);
}

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

.page-disclaimer .clause-list .tag {
  margin-right: 8px;
}

/* ---------- 合规信息 ---------- */
.page-disclaimer .doc-compliance {
  border-top: var(--doc-line);
  padding: clamp(26px, 4vw, 44px) 0 clamp(48px, 7vw, 80px);
}

.page-disclaimer .compliance-line {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-disclaimer .compliance-note {
  margin: 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-disclaimer .compliance-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 224, 200, 0.45);
}

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

/* ---------- 媒体查询 ---------- */
@media (min-width: 720px) {
  .page-disclaimer .toc {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 36px;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .doc-head-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }

  .page-disclaimer .clause {
    grid-template-columns: minmax(0, var(--doc-measure)) minmax(90px, 1fr);
    gap: clamp(28px, 6vw, 110px);
  }

  .page-disclaimer .clause-no {
    order: 0;
    padding-top: 4px;
    text-align: right;
  }
}

@media (min-width: 1200px) {
  .page-disclaimer .doc-head-grid {
    grid-template-columns: minmax(0, 1fr) 340px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .doc-abstract > summary,
  .page-disclaimer .toc a,
  .page-disclaimer .clause-main a {
    transition: none;
  }
}