.page-disclaimer {
  --pd-line: rgba(199, 215, 227, 0.085);
  --pd-gap: clamp(18px, 3.2vw, 34px);
  --pd-card-bg: linear-gradient(158deg, rgba(18, 59, 87, 0.55), rgba(7, 30, 48, 0.94) 58%);
  position: relative;
  isolation: isolate;
  padding-block: clamp(18px, 3vw, 34px) clamp(48px, 7vw, 88px);
  background-color: var(--ink-950);
  background-image:
    linear-gradient(to right, var(--pd-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--pd-line) 1px, transparent 1px);
  background-size: 64px 64px;
  color: var(--snow-50);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-disclaimer::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(110% 55% at 72% 0%, rgba(56, 224, 208, 0.1), transparent 62%),
    linear-gradient(180deg, rgba(4, 19, 31, 0.15), rgba(4, 19, 31, 0.96) 58%);
}

.page-disclaimer .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-disclaimer a:focus-visible,
.page-disclaimer button:focus-visible,
.page-disclaimer summary:focus-visible {
  outline: 2px solid var(--cyan-500);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 首屏：协议声明 ---------- */
.pd-intro {
  display: grid;
  gap: var(--pd-gap);
  align-items: start;
  padding-bottom: clamp(24px, 4vw, 44px);
  border-bottom: 1px solid var(--ink-700);
}

.pd-intro__text {
  min-width: 0;
}

.pd-intro h1 {
  margin: 0.55rem 0 0.9rem;
  font-size: clamp(1.85rem, 5.4vw, 3.05rem);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--snow-50);
}

.pd-intro__lede {
  max-width: 60ch;
  color: var(--ice-200);
  font-size: clamp(0.98rem, 1.6vw, 1.06rem);
  line-height: 1.78;
}

.pd-intro__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}

.pd-stamp {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: var(--fog-400);
  padding-left: 10px;
  border-left: 2px solid var(--cyan-500);
}

.pd-intro__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
}

.pd-intro__media {
  margin: 0;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-lg);
  background: var(--ink-900);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
}

.pd-intro__media .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.pd-intro__media .media-frame__caption {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--fog-400);
  padding: 10px 14px;
  border-top: 1px solid var(--ink-700);
}

/* ---------- 章节轨道 ---------- */
.pd-index {
  margin-bottom: clamp(22px, 4vw, 30px);
  padding: 16px 16px 14px;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-md);
  background: rgba(7, 30, 48, 0.74);
}

.pd-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber-300);
}

.pd-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
}

.pd-index__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 8px 8px;
  border-left: 2px solid transparent;
  border-radius: 8px;
  color: var(--ice-200);
  font-size: 0.88rem;
  line-height: 1.4;
  text-decoration: none;
  transition: color var(--dur) ease, background-color var(--dur) ease, border-color var(--dur) ease;
}

.pd-index__link:hover {
  color: var(--cyan-300);
  background: rgba(56, 224, 208, 0.08);
  border-left-color: var(--cyan-500);
}

.pd-index__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan-500);
  flex: none;
}

.pd-index__note {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--ink-700);
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--fog-400);
}

/* ---------- 条款卡片 ---------- */
.pd-clauses {
  display: grid;
  gap: clamp(14px, 2.4vw, 22px);
  min-width: 0;
}

.pd-clause {
  position: relative;
  overflow: hidden;
  min-width: 0;
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-lg);
  background: var(--pd-card-bg);
  box-shadow: var(--shadow-panel);
  scroll-margin-top: 96px;
}

.pd-clause::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 28px;
  height: 28px;
  background: linear-gradient(225deg, var(--ink-950) 50%, transparent 50%);
  border-left: 1px solid rgba(18, 59, 87, 0.9);
  border-bottom: 1px solid rgba(18, 59, 87, 0.9);
  pointer-events: none;
}

.pd-clause--key {
  border-left: 3px solid var(--amber-500);
}

.pd-clause--key .pd-clause__num {
  color: var(--amber-300);
}

.pd-clause__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(199, 215, 227, 0.1);
}

.pd-clause__num {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan-500);
  flex: none;
}

.pd-clause__title {
  margin: 0;
  font-size: clamp(1.06rem, 2.4vw, 1.4rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.35;
  color: var(--snow-50);
}

.page-disclaimer .pd-clause .prose {
  overflow-wrap: anywhere;
}

.page-disclaimer .pd-clause .prose p {
  margin: 0 0 0.85em;
  max-width: 72ch;
  font-size: 0.96rem;
  line-height: 1.82;
  color: var(--ice-200);
}

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

.page-disclaimer .pd-clause .prose a {
  color: var(--cyan-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-disclaimer .pd-clause .prose a:hover {
  color: var(--snow-50);
}

.page-disclaimer .pd-clause .prose ul {
  list-style: none;
  margin: 0 0 1em;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-disclaimer .pd-clause .prose li {
  position: relative;
  padding-left: 22px;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--ice-200);
}

.page-disclaimer .pd-clause .prose li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.68em;
  width: 10px;
  height: 2px;
  background: var(--cyan-500);
}

.pd-figure {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--amber-300);
  letter-spacing: 0.01em;
}

/* ---------- 折叠细则 ---------- */
.pd-details {
  margin-top: 14px;
  padding: 2px 14px;
  border: 1px dashed var(--ink-700);
  border-radius: var(--radius-md);
  background: rgba(4, 19, 31, 0.5);
}

.pd-details > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  cursor: pointer;
  list-style: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--cyan-300);
  transition: color var(--dur) ease;
}

.pd-details > summary::-webkit-details-marker {
  display: none;
}

.pd-details > summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--amber-300);
}

.pd-details[open] > summary::after {
  content: "–";
}

.pd-details > summary:hover {
  color: var(--snow-50);
}

.pd-details__body {
  padding: 2px 0 14px;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--fog-400);
  border-top: 1px solid rgba(18, 59, 87, 0.85);
}

.pd-details__body p {
  margin: 10px 0 0;
}

.pd-details__body a {
  color: var(--cyan-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 页尾条 ---------- */
.pd-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: clamp(24px, 4vw, 40px);
  padding-top: 18px;
  border-top: 1px solid var(--ink-700);
}

.pd-foot__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  color: var(--fog-400);
}

.pd-top {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--ink-700);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cyan-300);
  text-decoration: none;
  transition: border-color var(--dur) ease, color var(--dur) ease;
}

.pd-top:hover {
  border-color: var(--cyan-500);
  color: var(--snow-50);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .pd-intro {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: center;
  }

  .pd-body {
    display: grid;
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(24px, 3.5vw, 48px);
    align-items: start;
    padding-top: clamp(28px, 4vw, 46px);
  }

  .pd-index {
    position: sticky;
    top: 92px;
    margin-bottom: 0;
  }

  .pd-index__list {
    grid-template-columns: minmax(0, 1fr);
  }

  .pd-clause__head {
    gap: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .pd-index__link,
  .page-disclaimer .pd-top,
  .page-disclaimer .pd-details > summary {
    transition: none;
  }
}
<<<END>>>