.page-disclaimer {
  --usage-note-bg: rgba(240, 217, 140, .42);
  --usage-cut: 36px;
  background: var(--paper);
}

/* ---------- 首屏 ---------- */

.page-disclaimer .usage-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
  padding: 4.5rem 0 0;
}

.page-disclaimer .usage-hero::before {
  content: "";
  position: absolute;
  right: -18%;
  bottom: -34%;
  width: 68%;
  height: 78%;
  background: linear-gradient(118deg, rgba(200, 16, 46, 0) 38%, rgba(200, 16, 46, .55) 100%);
  transform: rotate(-24deg);
  pointer-events: none;
}

.page-disclaimer .usage-hero::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, rgba(212, 175, 55, .55), rgba(212, 175, 55, 0));
  pointer-events: none;
}

.page-disclaimer .usage-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 40rem;
}

.page-disclaimer .usage-hero__crumbs {
  margin-bottom: 1.75rem;
}

.page-disclaimer .usage-hero__crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .35rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: .04em;
}

.page-disclaimer .usage-hero__crumbs li {
  color: rgba(255, 255, 255, .58);
}

.page-disclaimer .usage-hero__crumbs li + li::before {
  content: "/";
  margin-right: .35rem;
  color: rgba(212, 175, 55, .55);
}

.page-disclaimer .usage-hero__crumbs a {
  color: var(--gold-light);
  text-decoration: none;
}

.page-disclaimer .usage-hero__crumbs a:hover,
.page-disclaimer .usage-hero__crumbs a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-disclaimer .usage-hero .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-disclaimer .usage-hero h1 {
  margin: .9rem 0 1.15rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(27px, 6.4vw, 42px);
  line-height: 1.28;
  letter-spacing: -.005em;
  color: var(--white);
}

.page-disclaimer .usage-hero .lead {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.92;
  color: rgba(255, 255, 255, .8);
}

.page-disclaimer .usage-hero__figure {
  position: relative;
  z-index: 1;
  margin-top: 2.75rem;
  margin-bottom: 0;
}

.page-disclaimer .usage-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 34px));
}

/* ---------- 正文区 ---------- */

.page-disclaimer .usage-body {
  background: var(--paper);
  padding: 3.25rem 0 4.5rem;
}

.page-disclaimer .usage-jump {
  padding-top: 1.15rem;
  border-top: 1px solid var(--hairline);
}

.page-disclaimer .usage-jump ol {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem 1.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-jump a {
  display: inline-flex;
  align-items: baseline;
  gap: .45rem;
  padding: .28rem 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .usage-jump a:hover,
.page-disclaimer .usage-jump a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--gold);
}

.page-disclaimer .usage-jump__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gold);
}

/* ---------- 条款 ---------- */

.page-disclaimer .usage-clauses {
  display: grid;
  gap: 2.6rem;
  margin: 2.75rem 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-clause {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr);
  gap: .35rem .85rem;
  scroll-margin-top: 5.5rem;
}

.page-disclaimer .usage-clause__num {
  padding-top: .42rem;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-disclaimer .usage-clause h2 {
  margin: 0 0 .7rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.5;
  color: var(--ink);
}

.page-disclaimer .usage-clause p {
  margin: 0 0 .85rem;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.95;
  color: var(--text);
}

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

.page-disclaimer .usage-clause a,
.page-disclaimer .usage-note a,
.page-disclaimer .usage-rel a {
  color: var(--red-deep);
  text-decoration: underline;
  text-decoration-color: rgba(212, 175, 55, .65);
  text-underline-offset: 3px;
}

.page-disclaimer .usage-clause a:hover,
.page-disclaimer .usage-note a:hover,
.page-disclaimer .usage-rel a:hover {
  text-decoration-color: var(--red);
}

/* ---------- 关键提醒 ---------- */

.page-disclaimer .usage-note {
  margin-top: 3.25rem;
  padding: 1.5rem 1.35rem 1.4rem;
  background: var(--usage-note-bg);
  border-top: 2px solid var(--gold);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), 0 100%);
}

.page-disclaimer .usage-note__label {
  margin: 0 0 .55rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--red-deep);
}

.page-disclaimer .usage-note h2 {
  margin: 0 0 .6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink);
}

.page-disclaimer .usage-note p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.95;
  color: var(--text);
}

/* ---------- 延伸入口 ---------- */

.page-disclaimer .usage-rel {
  margin-top: 3.75rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--hairline);
}

.page-disclaimer .usage-rel h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink);
}

.page-disclaimer .usage-rel ul {
  display: grid;
  gap: .85rem;
  margin: 1.15rem 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-rel li {
  padding-left: .95rem;
  position: relative;
}

.page-disclaimer .usage-rel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: .42rem;
  height: 1px;
  background: var(--gold);
}

.page-disclaimer .usage-rel a {
  font-size: 15px;
  line-height: 1.8;
  text-decoration-color: rgba(212, 175, 55, .45);
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-disclaimer .usage-hero {
    padding-top: 6rem;
  }

  .page-disclaimer .usage-hero .lead {
    font-size: 17px;
  }

  .page-disclaimer .usage-hero__figure {
    margin-top: 3.5rem;
  }

  .page-disclaimer .usage-body {
    padding: 4.25rem 0 6rem;
  }

  .page-disclaimer .usage-clauses {
    gap: 3.1rem;
    margin-top: 3.25rem;
  }

  .page-disclaimer .usage-clause {
    grid-template-columns: 3.25rem minmax(0, 1fr);
    gap: .5rem 1.5rem;
  }

  .page-disclaimer .usage-clause h2 {
    font-size: 23px;
  }

  .page-disclaimer .usage-clause p {
    font-size: 16px;
    line-height: 1.95;
  }

  .page-disclaimer .usage-note {
    padding: 1.85rem 2rem 1.7rem;
  }

  .page-disclaimer .usage-note h2 {
    font-size: 20px;
  }

  .page-disclaimer .usage-rel ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 2.25rem;
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .usage-hero__figure {
    width: 86%;
    margin-left: auto;
  }

  .page-disclaimer .usage-hero__figure img {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 44px));
  }

  .page-disclaimer .usage-clause {
    scroll-margin-top: 3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-jump a {
    transition: none;
  }
}