/* ============ 使用规范页 /usage/ ============ */
.page-disclaimer {
  --disc-rule: rgba(143, 169, 161, .28);
  --disc-rule-strong: rgba(143, 169, 161, .48);
  --disc-ink-text: #16241F;
  --disc-ink-mute: #556A63;
  --disc-body-text: #D8E5E0;
}

/* ---- 页首 ---- */
.page-disclaimer .disc-hero {
  padding-top: 1.4rem;
  padding-bottom: 1.6rem;
}

.page-disclaimer .disc-hero__title {
  margin: .45rem 0 .9rem;
  letter-spacing: .06em;
}

.page-disclaimer .disc-hero__lede {
  max-width: 60ch;
  color: var(--paper);
  opacity: .88;
  line-height: 1.85;
}

/* ---- 数据摘要条 ---- */
.page-disclaimer .disc-facts {
  list-style: none;
  margin: 1.8rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--disc-rule);
  border: 1px solid var(--disc-rule);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-disclaimer .disc-facts__item {
  background: var(--ink);
  padding: 14px 16px 15px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.page-disclaimer .disc-facts__k {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mute);
}

.page-disclaimer .disc-facts__v {
  font-size: 16px;
  line-height: 1.3;
  color: var(--amber);
  letter-spacing: .02em;
}

/* ---- 页首图示 ---- */
.page-disclaimer .disc-banner {
  margin: 0 auto 2.4rem;
}

.page-disclaimer .disc-banner__frame {
  position: relative;
  border: 1px solid var(--disc-rule-strong);
  border-radius: var(--radius);
  background: var(--graphite);
  overflow: hidden;
}

.page-disclaimer .disc-banner__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(46, 242, 200, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 242, 200, .09) 1px, transparent 1px);
  background-size: 46px 46px;
  pointer-events: none;
}

.page-disclaimer .disc-banner__frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  opacity: .78;
}

.page-disclaimer .disc-banner__cap {
  margin-top: 10px;
  font-family: var(--font-sans);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--mute);
}

/* ---- 主体骨架：索引 + 条款 ---- */
.page-disclaimer .disc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-bottom: 3rem;
}

.page-disclaimer .disc-aside {
  border-top: 2px solid var(--amber);
  padding-top: 12px;
}

.page-disclaimer .disc-index {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  border-top: 1px solid var(--disc-rule);
}

.page-disclaimer .disc-index li {
  border-bottom: 1px solid var(--disc-rule);
}

.page-disclaimer .disc-index a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 6px 11px 2px;
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--mute);
  text-decoration: none;
  transition: color .18s ease, padding-left .18s ease, background-color .18s ease;
}

.page-disclaimer .disc-index a .num {
  flex: none;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-disclaimer .disc-index a:hover,
.page-disclaimer .disc-index a:focus-visible {
  color: var(--cyan-soft);
  background-color: rgba(46, 242, 200, .07);
  padding-left: 12px;
}

.page-disclaimer .disc-aside__note {
  margin-top: 14px;
  font-family: var(--font-sans);
  font-size: 12px;
  line-height: 1.85;
  color: var(--mute);
}

/* ---- 条款 ---- */
.page-disclaimer .disc-body {
  min-width: 0;
}

.page-disclaimer .clause {
  border-top: 1px solid var(--disc-rule-strong);
  padding: 26px 0 22px;
  scroll-margin-top: 7rem;
}

.page-disclaimer .clause:last-child {
  padding-bottom: 8px;
}

.page-disclaimer .clause__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.page-disclaimer .clause__no {
  flex: none;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--amber);
  padding-top: 2px;
}

.page-disclaimer .clause__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.6vw, 25px);
  font-weight: 600;
  letter-spacing: .05em;
  line-height: 1.3;
  color: var(--paper);
}

.page-disclaimer .clause__body {
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--disc-body-text);
  max-width: 74ch;
}

.page-disclaimer .clause__body p {
  margin: 0 0 1em;
}

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

.page-disclaimer .clause__body ul {
  list-style: none;
  margin: 0 0 1em;
  padding: 0;
}

.page-disclaimer .clause__body li {
  position: relative;
  padding-left: 20px;
  margin-bottom: .55em;
}

.page-disclaimer .clause__body li:last-child {
  margin-bottom: 0;
}

.page-disclaimer .clause__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}

.page-disclaimer .clause__body a,
.page-disclaimer .disc-contact__side a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-decoration-color: rgba(46, 242, 200, .45);
  text-underline-offset: 3px;
}

.page-disclaimer .clause__body a:hover,
.page-disclaimer .disc-contact__side a:hover {
  color: var(--cyan);
}

/* ---- 折叠补充 ---- */
.page-disclaimer .clause__more {
  margin-top: 18px;
  border: 1px solid var(--disc-rule);
  border-radius: var(--radius);
  background: var(--ink-2);
}

.page-disclaimer .clause__more summary {
  cursor: pointer;
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan-soft);
  list-style: none;
}

.page-disclaimer .clause__more summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .clause__more summary::before {
  content: "＋";
  display: inline-block;
  margin-right: 8px;
  color: var(--amber);
  font-family: var(--font-mono);
}

.page-disclaimer .clause__more[open] summary::before {
  content: "－";
}

.page-disclaimer .clause__more[open] summary {
  border-bottom: 1px solid var(--disc-rule);
}

.page-disclaimer .clause__more ul {
  margin: 0;
  padding: 14px 18px 8px 38px;
  list-style: disc;
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--mute);
}

.page-disclaimer .clause__more li {
  padding-left: 0;
  margin-bottom: .5em;
}

.page-disclaimer .clause__more li::before {
  display: none;
}

/* ---- 联系区 ---- */
.page-disclaimer .disc-contact {
  padding-top: 2.6rem;
  border-top: 1px solid var(--disc-rule-strong);
}

.page-disclaimer .disc-contact__meta {
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mute);
}

.page-disclaimer .disc-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 20px;
}

.page-disclaimer .disc-contact__card {
  color: var(--disc-ink-text);
  border-radius: var(--radius);
}

.page-disclaimer .disc-contact__list {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-disclaimer .disc-contact__row dt {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--disc-ink-mute);
  margin-bottom: 5px;
}

.page-disclaimer .disc-contact__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--disc-ink-text);
  word-break: break-word;
}

.page-disclaimer .disc-contact__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(22, 36, 31, .16);
  font-family: var(--font-sans);
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--disc-ink-mute);
}

.page-disclaimer .disc-contact__side {
  border-radius: var(--radius);
}

.page-disclaimer .disc-contact__sub {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--paper);
}

.page-disclaimer .disc-contact__lead {
  margin: 0 0 12px;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--disc-body-text);
}

.page-disclaimer .disc-contact__lead:last-child {
  margin-bottom: 0;
}

/* ---- 相关页面 ---- */
.page-disclaimer .disc-related {
  padding-top: 2.4rem;
  padding-bottom: 1rem;
}

.page-disclaimer .disc-related__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--disc-rule);
  border: 1px solid var(--disc-rule);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-disclaimer .disc-related__list li {
  background: var(--ink);
}

.page-disclaimer .disc-related__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 18px;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
  text-decoration: none;
  transition: background-color .18s ease, color .18s ease;
}

.page-disclaimer .disc-related__list a .num {
  flex: none;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-disclaimer .disc-related__list a:hover,
.page-disclaimer .disc-related__list a:focus-visible {
  background-color: rgba(46, 242, 200, .08);
  color: var(--cyan-soft);
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-disclaimer .disc-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-disclaimer .disc-related__list {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 860px) {
  .page-disclaimer .disc-contact__grid {
    grid-template-columns: 1.2fr 1fr;
    gap: 26px;
  }
}

@media (min-width: 920px) {
  .page-disclaimer .disc-hero {
    padding-top: 2rem;
    padding-bottom: 1.8rem;
  }

  .page-disclaimer .disc-layout {
    grid-template-columns: 226px minmax(0, 1fr);
    gap: 58px;
  }

  .page-disclaimer .disc-aside {
    position: sticky;
    top: 108px;
    align-self: start;
  }

  .page-disclaimer .clause {
    padding: 30px 0 26px;
  }
}

/* ============ 打印 ============ */
@media print {
  .page-disclaimer {
    background: #fff;
    color: #111;
    padding: 0;
  }

  .page-disclaimer .disc-aside,
  .page-disclaimer .disc-banner__frame::after {
    display: none;
  }

  .page-disclaimer .disc-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    padding-bottom: 0;
  }

  .page-disclaimer .disc-hero__title,
  .page-disclaimer .clause__title,
  .page-disclaimer .clause__body,
  .page-disclaimer .disc-contact__sub,
  .page-disclaimer .disc-contact__lead,
  .page-disclaimer .disc-related__list a {
    color: #111;
  }

  .page-disclaimer .disc-hero__lede {
    color: #333;
    opacity: 1;
  }

  .page-disclaimer .disc-facts,
  .page-disclaimer .disc-facts__item,
  .page-disclaimer .disc-related__list,
  .page-disclaimer .disc-related__list li,
  .page-disclaimer .disc-contact__side {
    background: #fff;
    border-color: #999;
  }

  .page-disclaimer .disc-facts__v,
  .page-disclaimer .clause__no,
  .page-disclaimer .disc-related__list a .num {
    color: #111;
  }

  .page-disclaimer .clause,
  .page-disclaimer .disc-contact {
    break-inside: avoid;
    border-top-color: #999;
  }

  .page-disclaimer .clause__more {
    background: #fff;
    border-color: #999;
  }

  .page-disclaimer .clause__more ul {
    color: #333;
  }
}