.page-disclaimer {
  --d-line: rgba(154, 166, 184, .16);
  --d-orange: #FF6A2B;
  --d-blue-soft: rgba(46, 107, 255, .16);
  padding-bottom: clamp(72px, 9vw, 128px);
  overflow-x: clip;
  color: var(--snow);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  padding: clamp(28px, 5vw, 56px) 0 clamp(26px, 4vw, 44px);
  overflow: hidden;
}

.page-disclaimer .usage-hero::before {
  content: "";
  position: absolute;
  top: -38%;
  right: -14%;
  width: 62vw;
  height: 62vw;
  max-width: 620px;
  max-height: 620px;
  background: radial-gradient(circle at 50% 50%, rgba(46, 107, 255, .22), transparent 68%);
  pointer-events: none;
}

.page-disclaimer .usage-hero__inner {
  position: relative;
  z-index: 1;
  box-sizing: border-box;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.page-disclaimer .usage-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(38px, 8vw, 72px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--snow);
}

.page-disclaimer .usage-hero h1::after {
  content: "";
  display: block;
  width: clamp(64px, 12vw, 124px);
  height: 3px;
  margin-top: clamp(16px, 3vw, 24px);
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--blue), var(--orange));
}

.page-disclaimer .usage-hero__lead {
  margin: clamp(18px, 3vw, 26px) 0 0;
  max-width: 62ch;
  font-size: clamp(16px, 2vw, 18px);
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .usage-hero__annot {
  position: absolute;
  top: clamp(48px, 8vw, 104px);
  right: calc(var(--gutter) * 0.35);
  display: none;
  writing-mode: vertical-rl;
  font-size: 12px;
  letter-spacing: .34em;
  color: var(--mist);
  opacity: .5;
}

/* ---------- 速览胶囊带 ---------- */
.page-disclaimer .usage-snips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-snip {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--d-line);
  border-radius: var(--r-pill);
  background: var(--ink-900);
  color: var(--mist);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: color .28s var(--ease), border-color .28s var(--ease),
              background-color .28s var(--ease), transform .28s var(--ease);
}

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

.page-disclaimer .usage-snip:hover {
  color: var(--snow);
  border-color: var(--blue);
  background: var(--ink-800);
  transform: translateY(-2px);
}

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

/* ---------- 顶部氛围图 ---------- */
.page-disclaimer .usage-visual {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto clamp(36px, 6vw, 68px);
  padding: 0 var(--gutter);
}

.page-disclaimer .usage-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: 1px solid var(--d-line);
  border-radius: var(--r-lg);
  background: var(--ink-900);
  opacity: .84;
}

/* ---------- 条款章节 ---------- */
.page-disclaimer .rule {
  border-top: 1px solid var(--d-line);
}

.page-disclaimer .rule:last-of-type {
  border-bottom: 1px solid var(--d-line);
}

.page-disclaimer .rule__inner {
  box-sizing: border-box;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 18px);
  max-width: var(--content-max);
  margin: 0 auto;
  padding: clamp(32px, 5vw, 58px) var(--gutter);
}

.page-disclaimer .rule__index {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .08em;
  color: var(--blue);
}

.page-disclaimer .rule__index::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(46, 107, 255, .55), transparent);
}

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

.page-disclaimer .rule__title {
  margin: 0;
  font-size: clamp(23px, 3.4vw, 32px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--snow);
}

.page-disclaimer .rule__lead {
  margin: 14px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .rule__list {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--d-line);
}

.page-disclaimer .rule__item {
  padding: 18px 8px 18px 18px;
  border-bottom: 1px solid var(--d-line);
  border-left: 3px solid var(--d-blue-soft);
  transition: border-left-color .3s var(--ease), background-color .3s var(--ease);
}

.page-disclaimer .rule__item--limit {
  border-left-color: var(--d-orange);
}

.page-disclaimer .rule__item-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--snow);
}

.page-disclaimer .rule__item-text {
  margin: 7px 0 0;
  max-width: 70ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .rule__item-text .mono {
  color: var(--cyan);
  font-size: 14.5px;
  word-break: break-all;
}

.page-disclaimer .rule__item-text a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-disclaimer .rule__item-text a:hover {
  color: var(--snow);
}

.page-disclaimer .rule__cta {
  margin: clamp(22px, 3vw, 30px) 0 0;
}

.page-disclaimer .rule__cta .btn {
  text-decoration: none;
}

@media (hover: hover) {
  .page-disclaimer .rule__item:hover {
    border-left-color: var(--blue);
    background-color: rgba(46, 107, 255, .05);
  }

  .page-disclaimer .rule__item--limit:hover {
    border-left-color: var(--d-orange);
    background-color: rgba(255, 106, 43, .07);
  }
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 860px) {
  .page-disclaimer .rule__inner {
    grid-template-columns: 88px minmax(0, 1fr);
    column-gap: clamp(24px, 4vw, 48px);
    align-items: start;
  }

  .page-disclaimer .rule__index {
    display: block;
    padding-top: 6px;
    font-size: 28px;
  }

  .page-disclaimer .rule__index::after {
    display: none;
  }

  .page-disclaimer .rule__list {
    margin-top: clamp(24px, 3vw, 34px);
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .usage-hero__annot {
    display: block;
  }

  .page-disclaimer .rule__inner {
    grid-template-columns: 104px minmax(0, 1fr);
  }
}