.page-disclaimer {
  --disc-accent: var(--cyan);
  background: var(--ink);
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .intro {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 2px solid var(--line-strong);
}

.page-disclaimer .intro__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-disclaimer .intro__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
}

.page-disclaimer .intro__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 7, 11, 0.5) 0%, rgba(6, 7, 11, 0.88) 58%, var(--ink) 100%);
}

.page-disclaimer .intro__inner {
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(34px, 6vw, 70px);
}

.page-disclaimer .intro h1 {
  margin: 16px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.06;
  font-size: clamp(32px, 6.6vw, 72px);
  color: var(--white);
  max-width: 16ch;
}

.page-disclaimer .intro__lead {
  margin: 20px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}

@media (min-width: 720px) {
  .page-disclaimer .intro__lead {
    font-size: 17px;
  }
}

.page-disclaimer .intro__meta {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-disclaimer .intro__meta li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--muted);
  background: rgba(16, 19, 25, 0.76);
  border: 1px solid var(--line-strong);
  padding: 6px 10px;
}

/* ---------- 主体两栏 ---------- */
.page-disclaimer .body-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.5vw, 44px);
  padding: clamp(32px, 4.5vw, 64px) 0 clamp(44px, 6vw, 88px);
}

@media (min-width: 900px) {
  .page-disclaimer .body-grid {
    grid-template-columns: 214px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }
}

/* ---------- 章节索引 ---------- */
.page-disclaimer .toc__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-disclaimer .toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-disclaimer .toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--muted);
  text-decoration: none;
  background: transparent;
  border: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-disclaimer .toc__link:hover,
.page-disclaimer .toc__link:focus-visible {
  color: var(--white);
  border-color: var(--line-strong);
}

.page-disclaimer .toc__link[aria-current="true"] {
  color: var(--white);
  background: var(--violet-deep);
  border-color: var(--violet);
}

.page-disclaimer .toc__idx {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--cyan);
}

@media (max-width: 899px) {
  .page-disclaimer .toc__list {
    grid-auto-flow: column;
    grid-auto-columns: max-content;
    overflow-x: auto;
    padding-bottom: 8px;
    gap: 6px;
    -webkit-overflow-scrolling: touch;
  }

  .page-disclaimer .toc__link {
    white-space: nowrap;
    border-color: var(--line);
  }
}

@media (min-width: 900px) {
  .page-disclaimer .toc {
    position: sticky;
    top: 108px;
    align-self: start;
  }
}

/* ---------- 规则章节 ---------- */
.page-disclaimer .rule-section + .rule-section {
  margin-top: clamp(36px, 5.5vw, 72px);
  padding-top: clamp(28px, 4vw, 52px);
  border-top: 1px solid var(--line);
}

.page-disclaimer .rule-section__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

.page-disclaimer .rule-section__num {
  font-size: clamp(28px, 4.6vw, 48px);
  line-height: 1;
  color: var(--violet);
}

.page-disclaimer .rule-section__head h2 {
  margin: 0;
  font-size: clamp(20px, 2.5vw, 30px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.28;
  color: var(--white);
}

.page-disclaimer .rule-section__lead {
  margin: 14px 0 22px;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

@media (min-width: 720px) {
  .page-disclaimer .rule-section__lead {
    font-size: 16px;
  }
}

/* ---------- 规则卡 ---------- */
.page-disclaimer .rule-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

@media (min-width: 780px) {
  .page-disclaimer .rule-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
  }

  .page-disclaimer .rule-card--wide {
    grid-column: 1 / -1;
  }

  .page-disclaimer .rule-card:nth-child(even):not(.rule-card--wide) {
    margin-top: 22px;
  }
}

.page-disclaimer .rule-card {
  position: relative;
  background: var(--panel);
  border: 2px solid var(--line-strong);
  padding: 20px 20px 22px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-disclaimer .rule-card::after {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  width: 26px;
  height: 3px;
  background: var(--violet);
}

.page-disclaimer .rule-card:hover,
.page-disclaimer .rule-card:focus-within {
  border-color: var(--disc-accent);
  box-shadow: var(--shadow-cyan);
}

.page-disclaimer .rule-card__idx {
  display: inline-block;
  margin-bottom: 12px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink);
  background: var(--disc-accent);
}

.page-disclaimer .rule-card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-disclaimer .rule-card p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 引用示例 ---------- */
.page-disclaimer .cite-block {
  margin: 0 0 20px;
  padding: 16px 18px;
  background: var(--panel-2);
  border: 2px solid var(--line-strong);
  border-left: 4px solid var(--violet);
}

.page-disclaimer .cite-block__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-disclaimer .cite-block__code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.85;
  color: var(--violet-soft);
  white-space: pre-wrap;
  word-break: break-word;
}

/* ---------- 底部反馈条 ---------- */
.page-disclaimer .feedback-bar {
  background: linear-gradient(90deg, var(--violet-deep) 0%, var(--panel) 52%, var(--panel) 100%);
  border-top: 2px solid var(--line-strong);
  border-bottom: 2px solid var(--line-strong);
}

.page-disclaimer .feedback-bar__inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: clamp(28px, 4vw, 46px) 0;
}

@media (min-width: 820px) {
  .page-disclaimer .feedback-bar__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
  }
}

.page-disclaimer .feedback-bar__copy {
  min-width: 0;
}

.page-disclaimer .feedback-bar h2 {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.3vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-disclaimer .feedback-bar p {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
}

.page-disclaimer .feedback-bar__contact {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--cyan);
  word-break: break-word;
}

.page-disclaimer .feedback-bar__cta {
  flex: 0 0 auto;
  align-self: flex-start;
  white-space: nowrap;
}

@media (min-width: 820px) {
  .page-disclaimer .feedback-bar__cta {
    align-self: center;
  }
}

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