.page-disclaimer {
  --rule-cut: 20px;
  --nav-w: 248px;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  padding: clamp(20px, 4vw, 40px) 0 clamp(26px, 4vw, 44px);
  background:
    radial-gradient(120% 100% at 4% 0%, rgba(124, 58, 237, 0.42), transparent 62%),
    radial-gradient(90% 80% at 100% 100%, rgba(34, 211, 238, 0.16), transparent 68%),
    var(--ink);
  border-bottom: 1px solid var(--steel);
  overflow: hidden;
}

.page-disclaimer .usage-hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -60% auto;
  width: 62%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  transform: rotate(-8deg);
  opacity: 0.5;
  pointer-events: none;
}

.page-disclaimer .usage-hero__inner {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-disclaimer .usage-hero__title {
  margin: 0.12em 0 0.24em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 10.5vw, 92px);
  line-height: 0.96;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-disclaimer .usage-hero__title::after {
  content: "";
  display: block;
  width: clamp(64px, 26vw, 180px);
  height: 6px;
  margin-top: 16px;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  transform: skewX(-22deg);
}

.page-disclaimer .usage-hero__lead {
  max-width: 48ch;
  color: var(--mist);
}

.page-disclaimer .usage-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.page-disclaimer .usage-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid rgba(34, 211, 238, 0.35);
  background: linear-gradient(140deg, var(--violet-deep), var(--ink-2) 62%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
  overflow: hidden;
}

.page-disclaimer .usage-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  mix-blend-mode: luminosity;
  opacity: 0.88;
}

.page-disclaimer .usage-hero__media-tag {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 8px 14px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}

.page-disclaimer .usage-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px 20px;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: clamp(14px, 2vw, 18px) 0 0;
  list-style: none;
  border-top: 1px solid var(--steel);
}

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

.page-disclaimer .usage-meta__num {
  font-size: clamp(18px, 3vw, 22px);
  color: var(--cyan);
}

.page-disclaimer .usage-meta__label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 主体两栏 ---------- */
.page-disclaimer .usage-body {
  padding-top: clamp(26px, 5vw, 56px);
  padding-bottom: clamp(36px, 6vw, 82px);
}

.page-disclaimer .quick-nav {
  margin-bottom: clamp(20px, 3vw, 28px);
  padding: 16px;
  background: var(--ink-2);
  border: 1px solid var(--steel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-disclaimer .quick-nav__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dim);
}

.page-disclaimer .quick-nav__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-disclaimer .quick-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  font-size: 14px;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid var(--steel);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-disclaimer .quick-nav__num {
  font-size: 11px;
  color: var(--cyan);
}

.page-disclaimer .quick-nav__link:hover {
  color: var(--white);
  border-color: var(--cyan);
  background: rgba(34, 211, 238, 0.08);
}

.page-disclaimer .quick-nav__link:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
}

.page-disclaimer .quick-nav__cta {
  margin-top: 14px;
  width: 100%;
  justify-content: center;
}

/* ---------- 规则卡 ---------- */
.page-disclaimer .rules {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  min-width: 0;
}

.page-disclaimer .rule-card {
  position: relative;
  display: grid;
  gap: 10px;
  min-width: 0;
  padding: clamp(18px, 3vw, 30px);
  background: var(--ink-2);
  box-shadow: inset 0 0 0 1px var(--steel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--rule-cut)), calc(100% - var(--rule-cut)) 100%, 0 100%);
  scroll-margin-top: calc(var(--bar) + 96px);
  transition: transform 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-disclaimer .rule-card:hover {
  transform: translateY(-3px);
  box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.55);
}

.page-disclaimer .rule-card:focus-within {
  box-shadow: inset 0 0 0 1px var(--cyan);
}

.page-disclaimer .rule-card__num {
  font-size: clamp(26px, 5vw, 46px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(196, 181, 253, 0.8);
}

@supports not ((-webkit-text-stroke: 1px #fff)) {
  .page-disclaimer .rule-card__num {
    color: var(--lilac);
  }
}

.page-disclaimer .rule-card__body {
  min-width: 0;
}

.page-disclaimer .rule-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.2;
  color: var(--white);
}

.page-disclaimer .rule-card__concl {
  margin: 8px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 500;
  line-height: 1.72;
  color: var(--white);
}

.page-disclaimer .rule-card__alert {
  margin: 14px 0 0;
  padding: 11px 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--white);
  background: rgba(255, 122, 26, 0.14);
  border-left: 3px solid var(--orange);
}

.page-disclaimer .rule-card__extra {
  margin: 14px 0 0;
  padding-top: 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--dim);
  border-top: 1px dashed var(--steel);
}

.page-disclaimer .rule-tips {
  display: grid;
  gap: 9px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .rule-tips li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-disclaimer .rule-tips li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.74em;
  width: 10px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 设备图标行 ---------- */
.page-disclaimer .device-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .device-row__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--lilac);
  border: 1px solid var(--steel);
  background: rgba(124, 58, 237, 0.12);
}

.page-disclaimer .device-row__icon {
  flex: none;
  color: var(--cyan);
}

/* ---------- 联系块 ---------- */
.page-disclaimer .rule-contact {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.page-disclaimer .rule-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 10px 12px;
  background: rgba(124, 58, 237, 0.14);
  border-left: 2px solid var(--violet);
}

.page-disclaimer .rule-contact__row--plain {
  background: rgba(42, 51, 80, 0.35);
  border-left-color: var(--steel);
}

.page-disclaimer .rule-contact__key {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--dim);
}

.page-disclaimer .rule-contact__val {
  flex: 1 1 12ch;
  min-width: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

.page-disclaimer .copy-btn {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-disclaimer .copy-btn:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 相关页面 ---------- */
.page-disclaimer .usage-next {
  padding: clamp(30px, 5vw, 68px) 0 clamp(40px, 6vw, 84px);
  background: linear-gradient(180deg, var(--ink), var(--ink-2));
  border-top: 1px solid var(--steel);
}

.page-disclaimer .usage-next__title {
  margin: 0 0 clamp(18px, 3vw, 28px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.15;
  color: var(--white);
}

.page-disclaimer .usage-next__grid {
  display: grid;
  gap: 12px;
}

.page-disclaimer .next-card {
  position: relative;
  display: grid;
  gap: 4px;
  padding: 18px 40px 18px 18px;
  text-decoration: none;
  background: rgba(14, 20, 36, 0.9);
  box-shadow: inset 0 0 0 1px var(--steel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-disclaimer .next-card:hover {
  transform: translateY(-2px);
  box-shadow: inset 0 0 0 1px var(--cyan);
}

.page-disclaimer .next-card:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
}

.page-disclaimer .next-card__num {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-disclaimer .next-card__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  color: var(--white);
}

.page-disclaimer .next-card__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-disclaimer .next-card__go {
  position: absolute;
  right: 14px;
  bottom: 14px;
  color: var(--violet);
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-disclaimer .next-card:hover .next-card__go {
  color: var(--cyan);
  transform: translateX(3px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-disclaimer .usage-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .usage-next__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-disclaimer .rule-card {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0 clamp(16px, 3vw, 30px);
    align-items: start;
  }

  .page-disclaimer .rule-card__num {
    position: sticky;
    top: calc(var(--bar) + 100px);
  }
}

@media (min-width: 900px) {
  .page-disclaimer .usage-hero__inner {
    grid-template-columns: 1.08fr 0.92fr;
    align-items: end;
  }
}

@media (min-width: 1080px) {
  .page-disclaimer .usage-body {
    display: grid;
    grid-template-columns: var(--nav-w) minmax(0, 1fr);
    gap: clamp(28px, 3.5vw, 56px);
    align-items: start;
  }

  .page-disclaimer .quick-nav {
    position: sticky;
    top: 28px;
    margin-bottom: 0;
  }

  .page-disclaimer .quick-nav__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0;
  }

  .page-disclaimer .quick-nav__link {
    width: 100%;
    border: 0;
    border-left: 2px solid var(--steel);
    padding: 9px 12px;
    white-space: normal;
  }

  .page-disclaimer .quick-nav__link:hover {
    border-left-color: var(--cyan);
    background: rgba(124, 58, 237, 0.16);
  }

  .page-disclaimer .rule-card {
    scroll-margin-top: 28px;
  }

  .page-disclaimer .rule-card__num {
    top: 28px;
  }

  .page-disclaimer .usage-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (hover: hover) and (min-width: 1080px) {
  .page-disclaimer .rule-card__extra {
    max-height: 0;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.3s var(--ease), opacity 0.3s var(--ease), padding-top 0.3s var(--ease), margin-top 0.3s var(--ease), border-top-color 0.3s var(--ease);
  }

  .page-disclaimer .rule-card:hover .rule-card__extra,
  .page-disclaimer .rule-card:focus-within .rule-card__extra {
    max-height: 220px;
    margin-top: 14px;
    padding-top: 12px;
    border-top-color: var(--steel);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .rule-card,
  .page-disclaimer .next-card,
  .page-disclaimer .next-card__go,
  .page-disclaimer .rule-card__extra {
    transition: none;
  }

  .page-disclaimer .rule-card:hover,
  .page-disclaimer .next-card:hover {
    transform: none;
  }

  .page-disclaimer .next-card:hover .next-card__go {
    transform: none;
  }
}

@media print {
  .page-disclaimer .quick-nav,
  .page-disclaimer .usage-next,
  .page-disclaimer .breadcrumbs {
    display: none;
  }

  .page-disclaimer .usage-hero {
    background: #fff;
    border-bottom: 1px solid #999;
  }

  .page-disclaimer .usage-hero__title,
  .page-disclaimer .usage-hero__lead,
  .page-disclaimer .rule-card__title,
  .page-disclaimer .rule-card__concl,
  .page-disclaimer .rule-contact__val,
  .page-disclaimer .next-card__title {
    color: #111;
  }

  .page-disclaimer .rule-card,
  .page-disclaimer .quick-nav,
  .page-disclaimer .next-card {
    background: #fff;
    box-shadow: none;
    border: 1px solid #999;
    clip-path: none;
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .page-disclaimer .rule-card__extra {
    max-height: none;
    opacity: 1;
    padding-top: 12px;
    border-top: 1px dashed #999;
    color: #333;
  }
}
<<<END>>>