.page-disclaimer {
  --usage-card: #FFFFFF;
  --usage-line: rgba(21, 26, 29, 0.1);
  --usage-mist: rgba(110, 143, 163, 0.16);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
}

.page-disclaimer img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-disclaimer .breadcrumb {
  padding: 14px 0 0;
  background: var(--paper);
}

.page-disclaimer .rule-section {
  scroll-margin-top: 92px;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(28px, 6vw, 56px) 0 clamp(42px, 8vw, 92px);
  background:
    radial-gradient(120% 92% at 88% 0%, rgba(77, 208, 225, 0.26) 0%, rgba(77, 208, 225, 0) 58%),
    radial-gradient(80% 72% at 6% 100%, rgba(242, 179, 61, 0.2) 0%, rgba(242, 179, 61, 0) 62%),
    linear-gradient(150deg, var(--jade-deep) 0%, var(--jade) 46%, var(--charcoal) 100%);
  color: var(--paper);
}

.page-disclaimer .usage-hero::before {
  content: "";
  position: absolute;
  inset: -40% -20% auto auto;
  width: 62%;
  height: 200%;
  transform: rotate(24deg);
  background: repeating-linear-gradient(
    90deg,
    rgba(247, 244, 238, 0.055) 0 1px,
    rgba(247, 244, 238, 0) 1px 24px
  );
  pointer-events: none;
  z-index: -1;
}

.page-disclaimer .usage-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--moss), var(--volt) 48%, var(--amber));
}

.page-disclaimer .usage-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 5vw, 46px);
  align-items: center;
}

.page-disclaimer .usage-hero .eyebrow {
  margin: 0;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.page-disclaimer .usage-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 50px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  max-width: 18ch;
}

.page-disclaimer .usage-hero__intro {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: rgba(247, 244, 238, 0.82);
}

.page-disclaimer .usage-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.page-disclaimer .usage-index a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(247, 244, 238, 0.28);
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-disclaimer .usage-index a .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--amber);
}

.page-disclaimer .usage-index a:hover {
  transform: translateY(-2px);
  border-color: var(--amber);
  background: rgba(242, 179, 61, 0.14);
}

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

.page-disclaimer .usage-hero__figure {
  margin: 0;
}

.page-disclaimer .usage-hero__figure .img-frame {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid rgba(247, 244, 238, 0.2);
}

.page-disclaimer .usage-hero__figure .img-frame__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(247, 244, 238, 0.66);
}

/* ---------- 通用章节 ---------- */
.page-disclaimer .rule-section {
  padding: clamp(38px, 7vw, 82px) 0;
}

.page-disclaimer .rule-section--paper {
  background: var(--paper);
}

.page-disclaimer .rule-section--mist {
  background: var(--usage-mist);
}

.page-disclaimer .rule-section--deep {
  background: linear-gradient(160deg, var(--charcoal) 0%, var(--jade-deep) 100%);
  color: var(--paper);
}

.page-disclaimer .rule-section__head {
  display: grid;
  gap: 10px;
  max-width: 62ch;
  margin-bottom: clamp(22px, 4vw, 34px);
}

.page-disclaimer .rule-section__head .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--amber-deep);
}

.page-disclaimer .rule-section--deep .rule-section__head .eyebrow {
  color: var(--amber);
}

.page-disclaimer .rule-section__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.16;
  letter-spacing: -0.005em;
}

.page-disclaimer .rule-section__lede {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-soft);
  max-width: 60ch;
}

.page-disclaimer .rule-section--deep .rule-section__lede {
  color: rgba(247, 244, 238, 0.76);
}

/* ---------- 编号条目 ---------- */
.page-disclaimer .rule-list {
  counter-reset: usage-rule;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-disclaimer .rule-list > li {
  counter-increment: usage-rule;
  position: relative;
  padding: 20px 20px 20px 70px;
  border-radius: var(--r-md);
  background: var(--usage-card);
  border: 1px solid var(--usage-line);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-disclaimer .rule-list > li::before {
  content: counter(usage-rule, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 21px;
  min-width: 36px;
  padding: 1px 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  line-height: 22px;
  text-align: center;
  color: var(--amber-deep);
  background: rgba(242, 179, 61, 0.2);
  border-radius: var(--r-pill);
}

.page-disclaimer .rule-list > li:hover {
  transform: translateY(-3px);
  border-color: var(--amber);
  box-shadow: 0 14px 30px -24px rgba(21, 26, 29, 0.7);
}

.page-disclaimer .rule-list__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  color: var(--ink);
}

.page-disclaimer .rule-list > li p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--ink-soft);
}

.page-disclaimer .rule-section--deep .rule-list > li {
  background: rgba(247, 244, 238, 0.06);
  border-color: var(--line-invert);
}

.page-disclaimer .rule-section--deep .rule-list > li::before {
  color: var(--charcoal);
  background: var(--amber);
}

.page-disclaimer .rule-section--deep .rule-list__title {
  color: var(--paper);
}

.page-disclaimer .rule-section--deep .rule-list > li p {
  color: rgba(247, 244, 238, 0.78);
}

/* ---------- 会员中心分区 ---------- */
.page-disclaimer .member-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 32px);
  align-items: start;
}

.page-disclaimer .member-split__panel {
  padding: 26px 24px;
  border-radius: var(--r-lg);
  background: linear-gradient(165deg, var(--jade) 0%, var(--jade-deep) 100%);
  color: var(--paper);
  box-shadow: 0 22px 44px -34px rgba(10, 63, 62, 0.9);
}

.page-disclaimer .member-split__figure {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(34px, 6vw, 46px);
  line-height: 1;
  color: var(--amber);
}

.page-disclaimer .member-split__caption {
  margin: 14px 0 22px;
  font-size: 15px;
  line-height: 1.76;
  color: rgba(247, 244, 238, 0.8);
}

.page-disclaimer .member-split__panel .btn {
  width: 100%;
  justify-content: center;
}

/* ---------- 旧版栏目分区 ---------- */
.page-disclaimer .legacy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 36px);
  align-items: start;
}

.page-disclaimer .legacy-grid__note p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(247, 244, 238, 0.8);
  max-width: 54ch;
}

.page-disclaimer .legacy-grid__note p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .usage-fold {
  border: 1px solid var(--line-invert);
  border-radius: var(--r-md);
  background: rgba(247, 244, 238, 0.05);
  overflow: hidden;
}

.page-disclaimer .usage-fold + .usage-fold {
  margin-top: 12px;
}

.page-disclaimer .usage-fold__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--paper);
  transition: background-color 0.2s ease;
}

.page-disclaimer .usage-fold__summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .usage-fold__summary .mono {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--amber);
}

.page-disclaimer .usage-fold__summary:hover {
  background: rgba(247, 244, 238, 0.07);
}

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

.page-disclaimer .usage-fold[open] .usage-fold__summary {
  border-bottom: 1px solid var(--line-invert);
}

.page-disclaimer .usage-fold__body {
  padding: 16px 20px 20px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(247, 244, 238, 0.76);
}

.page-disclaimer .usage-fold__body p {
  margin: 0;
}

/* ---------- 联系分区 ---------- */
.page-disclaimer .contact-block {
  padding: clamp(22px, 4vw, 34px);
  border-radius: var(--r-lg);
  background: var(--usage-card);
  border: 1px solid var(--usage-line);
}

.page-disclaimer .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-disclaimer .contact-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--usage-line);
}

.page-disclaimer .contact-list li:last-child {
  border-bottom: none;
}

.page-disclaimer .contact-list__label {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--amber-deep);
}

.page-disclaimer .contact-list__value {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

.page-disclaimer .contact-list__value.mono {
  font-family: var(--font-mono);
  font-weight: 600;
}

.page-disclaimer .contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-disclaimer .contact-note {
  margin: 20px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--ink-soft);
}

.page-disclaimer .usage-top {
  margin: 26px 0 0;
  text-align: right;
}

.page-disclaimer .usage-top a {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px dashed currentColor;
}

.page-disclaimer .usage-top a:hover {
  color: var(--amber-deep);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-disclaimer .contact-list li {
    grid-template-columns: 150px 1fr;
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .usage-hero__grid {
    grid-template-columns: 1.06fr 0.94fr;
  }

  .page-disclaimer .member-split {
    grid-template-columns: 1.35fr 0.65fr;
  }

  .page-disclaimer .legacy-grid {
    grid-template-columns: 0.82fr 1.18fr;
  }

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

  .page-disclaimer .rule-list--wide > li:first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1080px) {
  .page-disclaimer .rule-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .member-split__list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .rule-list > li,
  .page-disclaimer .usage-index a {
    transition: none;
  }

  .page-disclaimer .rule-list > li:hover,
  .page-disclaimer .usage-index a:hover {
    transform: none;
  }
}