.page-disclaimer {
  --usage-gap: clamp(20px, 3vw, 34px);
  --usage-edge: clamp(18px, 3.4vw, 40px);
  position: relative;
  color: var(--porcelain);
  padding-bottom: clamp(52px, 8vw, 104px);
  overflow-x: hidden;
  background:
    linear-gradient(rgba(200, 164, 92, .045) 1px, transparent 1px) 0 0 / 52px 52px,
    linear-gradient(90deg, rgba(200, 164, 92, .045) 1px, transparent 1px) 0 0 / 52px 52px,
    radial-gradient(120% 70% at 90% 0%, rgba(58, 69, 82, .55), transparent 62%),
    var(--ink);
}

.page-disclaimer .crumb {
  padding-top: clamp(86px, 12vw, 120px);
}

.page-disclaimer .crumb__link {
  color: var(--mist);
}

.page-disclaimer .crumb__link[aria-current="page"] {
  color: var(--gold-hi);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  padding-top: clamp(16px, 3vw, 28px);
}

.page-disclaimer .usage-hero__inner {
  display: grid;
  gap: clamp(26px, 4.5vw, 48px);
  align-items: center;
}

.page-disclaimer .usage-hero__copy {
  min-width: 0;
}

.page-disclaimer .usage-hero__copy .eyebrow {
  display: inline-block;
  color: var(--gold);
  letter-spacing: .18em;
  font-size: 12px;
}

.page-disclaimer h1 {
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(46px, 10vw, 88px);
  line-height: 1.02;
  letter-spacing: .12em;
  color: var(--porcelain);
  text-shadow: 0 0 44px rgba(200, 164, 92, .18);
}

.page-disclaimer .usage-hero__lead {
  max-width: 46ch;
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
  color: var(--mist);
}

.page-disclaimer .usage-path {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0 0 0 clamp(12px, 2vw, 18px);
  border-left: 1px solid rgba(200, 164, 92, .34);
  display: grid;
  gap: 12px;
}

.page-disclaimer .usage-path li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.7;
  color: var(--porcelain);
}

.page-disclaimer .usage-path__num {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-disclaimer .usage-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-disclaimer .usage-hero__media {
  margin: 0;
  border: 1px solid rgba(200, 164, 92, .3);
  background: var(--ink-2);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 30px 100%, 0 calc(100% - 30px));
}

.page-disclaimer .usage-hero__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 14 / 9;
  filter: saturate(.85) contrast(1.04);
}

/* ---------- 目录 + 条款 ---------- */
.page-disclaimer .usage-body {
  display: grid;
  gap: clamp(30px, 4.5vw, 52px);
  margin-top: clamp(40px, 6vw, 72px);
}

.page-disclaimer .legend {
  min-width: 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--gold-dim);
}

.page-disclaimer .legend__caption {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--gold);
}

.page-disclaimer .legend__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 8px;
}

.page-disclaimer .legend__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 8px;
  text-decoration: none;
  color: var(--mist);
  font-size: 13px;
  letter-spacing: .03em;
  border-bottom: 1px solid rgba(200, 164, 92, .14);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-disclaimer .legend__link:hover,
.page-disclaimer .legend__link:focus-visible {
  color: var(--gold-hi);
  background: rgba(200, 164, 92, .08);
  outline: 1px solid rgba(200, 164, 92, .45);
  outline-offset: -1px;
}

.page-disclaimer .legend__num {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-disclaimer .legend__label {
  min-width: 0;
}

.page-disclaimer .legend__note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: rgba(167, 176, 188, .78);
}

.page-disclaimer .clauses {
  min-width: 0;
  display: grid;
  gap: var(--usage-gap);
}

.page-disclaimer .clause {
  position: relative;
  min-width: 0;
  padding: clamp(20px, 3vw, 32px) var(--usage-edge) clamp(22px, 3.2vw, 34px);
  background: linear-gradient(158deg, rgba(58, 69, 82, .42), rgba(23, 24, 29, .86) 68%);
  border-top: 1px solid rgba(200, 164, 92, .3);
  border-left: 1px solid rgba(200, 164, 92, .16);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

.page-disclaimer .clause::after {
  content: "";
  position: absolute;
  top: 0;
  right: 24px;
  width: 1px;
  height: 24px;
  background: var(--gold);
  transform: rotate(-45deg);
  transform-origin: top right;
  opacity: .7;
}

.page-disclaimer .clause__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
}

.page-disclaimer .clause__num {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--gold-hi);
  border: 1px solid rgba(200, 164, 92, .45);
  padding: 3px 7px;
}

.page-disclaimer .clause__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(20px, 3.2vw, 27px);
  letter-spacing: .08em;
  color: var(--porcelain);
}

.page-disclaimer .clause p {
  margin: 14px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mist);
}

.page-disclaimer .clause p:first-of-type {
  margin-top: 16px;
}

.page-disclaimer .clause strong {
  color: var(--porcelain);
  font-weight: 500;
  word-break: break-all;
}

.page-disclaimer .clause__link {
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 164, 92, .55);
  padding-bottom: 1px;
}

.page-disclaimer .clause__link:hover,
.page-disclaimer .clause__link:focus-visible {
  color: var(--porcelain);
  border-bottom-color: var(--cinnabar);
}

.page-disclaimer .clause--seal {
  overflow: hidden;
}

.page-disclaimer .seal {
  position: absolute;
  top: -14px;
  right: -18px;
  width: clamp(104px, 16vw, 152px);
  height: auto;
  color: var(--gold);
  opacity: .22;
  pointer-events: none;
}

/* ---------- 可展开补充 ---------- */
.page-disclaimer .disclosure {
  margin-top: 20px;
  border-top: 1px dashed rgba(200, 164, 92, .26);
}

.page-disclaimer .disclosure__trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 2px 13px;
  background: none;
  border: 0;
  color: var(--gold-hi);
  font-family: var(--font-sans);
  font-size: 14px;
  letter-spacing: .04em;
  text-align: left;
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}

.page-disclaimer .disclosure__trigger:hover,
.page-disclaimer .disclosure__trigger:focus-visible {
  color: var(--porcelain);
  outline: 1px solid rgba(200, 164, 92, .5);
  outline-offset: 2px;
}

.page-disclaimer .disclosure__title {
  min-width: 0;
}

.page-disclaimer .disclosure__mark {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  border: 1px solid rgba(200, 164, 92, .55);
}

.page-disclaimer .disclosure__mark::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 3px;
  right: 3px;
  height: 1px;
  background: var(--gold-hi);
  transform: translateY(-50%);
}

.page-disclaimer .disclosure__mark::after {
  content: "";
  position: absolute;
  top: 3px;
  bottom: 3px;
  left: 50%;
  width: 1px;
  background: var(--cinnabar);
  transform: translateX(-50%);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-disclaimer [data-disclosure][data-open] .disclosure__mark::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-disclaimer [data-disclosure][data-open] .disclosure__trigger {
  color: var(--gold);
}

.page-disclaimer .disclosure__body {
  margin: 0 0 6px;
  padding: 2px 0 2px 14px;
  border-left: 2px solid var(--cinnabar);
}

.page-disclaimer .disclosure__body p {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(167, 176, 188, .95);
}

/* ---------- 修订条 ---------- */
.page-disclaimer .usage-foot {
  margin-top: clamp(6px, 1.5vw, 14px);
}

.page-disclaimer .usage-foot__line {
  height: 1px;
  background: linear-gradient(90deg, var(--gold) 0%, rgba(200, 164, 92, .12) 78%, transparent 100%);
}

.page-disclaimer .usage-foot__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 14px;
  padding-top: 18px;
}

.page-disclaimer .usage-foot__dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cinnabar);
  box-shadow: 0 0 0 4px rgba(184, 58, 46, .18);
}

.page-disclaimer .usage-foot__text {
  flex: 1 1 240px;
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-disclaimer .usage-foot__text .mono {
  color: var(--gold-hi);
}

/* ---------- 响应式 ---------- */
@media (min-width: 780px) {
  .page-disclaimer .usage-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  }

  .page-disclaimer .legend__list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-disclaimer .clause:nth-child(even) {
    margin-left: clamp(0px, 4vw, 52px);
  }

  .page-disclaimer .clause:nth-child(3n) {
    margin-right: clamp(0px, 3vw, 40px);
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .usage-body {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-disclaimer .legend {
    position: sticky;
    top: 112px;
    padding-left: 4px;
  }

  .page-disclaimer .clause p {
    font-size: 15.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .legend__link,
  .page-disclaimer .disclosure__trigger,
  .page-disclaimer .disclosure__mark::after {
    transition: none;
  }
}
<<<END>>>