/* ==========================================================
   使用说明 · 条款阅读页
   作用域：.page-disclaimer
   ========================================================== */

.page-disclaimer {
  --disc-measure: 660px;
  --disc-aside: 252px;
  background-color: var(--ink-800);
  color: var(--white);
}

/* ---------- 页头 ---------- */

.page-disclaimer .disc-masthead {
  position: relative;
  padding: 84px 0 0;
  background-image: linear-gradient(158deg, var(--ink-900) 0%, var(--ink-800) 56%, var(--ink-700) 100%);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-masthead::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 104px),
    repeating-linear-gradient(0deg, var(--line) 0 1px, transparent 1px 104px);
  opacity: 0.3;
  pointer-events: none;
}

.page-disclaimer .disc-masthead__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-disclaimer .disc-masthead__text {
  padding-bottom: 44px;
}

.page-disclaimer .disc-masthead .breadcrumb {
  margin: 0 0 22px;
}

.page-disclaimer .disc-masthead .kicker {
  display: block;
  margin: 0 0 16px;
  color: var(--teal);
}

.page-disclaimer .disc-masthead__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7.4vw, 64px);
  line-height: 1.08;
  letter-spacing: 0.02em;
  color: var(--white);
  max-width: 16em;
}

.page-disclaimer .disc-masthead__title::after {
  content: "";
  display: block;
  width: 108px;
  height: 6px;
  margin-top: 26px;
  background-image: linear-gradient(
    90deg,
    var(--teal) 0%,
    var(--teal) 62%,
    var(--orange) 62%,
    var(--orange) 100%
  );
  transform: skewX(-18deg);
}

.page-disclaimer .disc-masthead__lead {
  max-width: 620px;
  margin: 28px 0 0;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-disclaimer .disc-masthead__media {
  margin: 0;
  width: 100%;
  min-height: 220px;
  border-top: 1px solid var(--line);
}

@media (min-width: 960px) {
  .page-disclaimer .disc-masthead {
    padding-top: 96px;
  }

  .page-disclaimer .disc-masthead__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    align-items: end;
    gap: 56px;
  }

  .page-disclaimer .disc-masthead__text {
    padding-bottom: 56px;
  }

  .page-disclaimer .disc-masthead__media {
    border-top: 0;
    border-left: 1px solid var(--line);
    min-height: 280px;
  }
}

/* ---------- 条款索引 ---------- */

.page-disclaimer .disc-index {
  padding: 40px 0 46px;
  background-color: var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-index__kicker {
  display: block;
  margin: 0 0 18px;
  color: var(--muted);
}

.page-disclaimer .disc-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background-color: var(--line);
  border: 1px solid var(--line);
}

.page-disclaimer .disc-index__link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 18px 20px;
  background-color: var(--ink-700);
  color: var(--white);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.03em;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-disclaimer .disc-index__link:hover,
.page-disclaimer .disc-index__link:focus-visible {
  background-color: var(--ink-600);
  color: var(--teal-soft);
}

.page-disclaimer .disc-index__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--teal);
}

.page-disclaimer .disc-index__link:hover .disc-index__no {
  color: var(--teal-soft);
}

@media (min-width: 640px) {
  .page-disclaimer .disc-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .disc-index__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-disclaimer .disc-index__link {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 22px 18px 24px;
  }
}

/* ---------- 正文骨架 ---------- */

.page-disclaimer .disc-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding: 52px 0 88px;
}

.page-disclaimer .disc-body__main {
  min-width: 0;
}

@media (min-width: 1024px) {
  .page-disclaimer .disc-body {
    grid-template-columns: minmax(0, 1fr) var(--disc-aside);
    gap: 72px;
    align-items: start;
  }
}

/* ---------- 条款块 ---------- */

.page-disclaimer .disc-clause {
  padding: 34px 0 40px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.page-disclaimer .disc-clause:last-child {
  padding-bottom: 12px;
}

.page-disclaimer .disc-clause__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 20px;
}

.page-disclaimer .disc-clause__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--teal);
}

.page-disclaimer .disc-clause h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(21px, 2.7vw, 28px);
  line-height: 1.32;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-disclaimer .disc-clause__body {
  max-width: var(--disc-measure);
}

@media (min-width: 720px) {
  .page-disclaimer .disc-clause__body {
    margin-left: 44px;
  }
}

.page-disclaimer .disc-clause p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--white);
}

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

.page-disclaimer .more-link {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .more-link:hover,
.page-disclaimer .more-link:focus-visible {
  color: var(--teal-soft);
  border-bottom-color: var(--teal-soft);
}

/* ---------- 条目列表 ---------- */

.page-disclaimer .disc-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-disclaimer .disc-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--white);
}

.page-disclaimer .disc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.74em;
  width: 11px;
  height: 1px;
  background-color: var(--teal);
}

/* ---------- 引用署名块 ---------- */

.page-disclaimer .disc-cite {
  margin: 22px 0 24px;
  padding: 20px 22px 22px;
  background-color: var(--ink-600);
  border: 1px solid var(--line);
  border-left: 3px solid var(--teal);
}

.page-disclaimer .disc-cite__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-disclaimer .disc-cite__code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  color: var(--teal-soft);
  word-break: break-word;
  -webkit-user-select: all;
  user-select: all;
}

/* ---------- 时效对照行 ---------- */

.page-disclaimer .disc-times {
  margin: 22px 0 22px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-disclaimer .disc-times__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-times dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--teal);
}

.page-disclaimer .disc-times dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--white);
}

@media (min-width: 640px) {
  .page-disclaimer .disc-times__row {
    grid-template-columns: 176px minmax(0, 1fr);
    gap: 26px;
    align-items: baseline;
  }
}

/* ---------- 反馈步骤 ---------- */

.page-disclaimer .disc-steps {
  list-style: none;
  margin: 22px 0 22px;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background-color: var(--line);
  border: 1px solid var(--line);
}

.page-disclaimer .disc-steps li {
  padding: 16px 18px 18px;
  background-color: var(--ink-600);
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--white);
}

.page-disclaimer .disc-steps__no {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

/* ---------- 版本刻度 ---------- */

.page-disclaimer .disc-log {
  list-style: none;
  margin: 26px 0 18px;
  padding: 0 0 0 22px;
  border-left: 1px solid var(--line);
}

.page-disclaimer .disc-log__item {
  position: relative;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-log__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 21px;
  width: 9px;
  height: 9px;
  background-color: var(--ink-800);
  border: 1px solid var(--teal);
}

.page-disclaimer .disc-log__details[open] + .disc-log__item::before {
  background-color: var(--teal);
}

.page-disclaimer .disc-log__summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--white);
  transition: color var(--dur) var(--ease);
}

.page-disclaimer .disc-log__summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .disc-log__summary:hover,
.page-disclaimer .disc-log__summary:focus-visible {
  color: var(--teal-soft);
}

.page-disclaimer .disc-log__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--teal);
}

.page-disclaimer .disc-log__details[open] .disc-log__summary::after {
  content: "–";
}

.page-disclaimer .disc-log__ver {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--teal);
}

.page-disclaimer .disc-log__when {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
  font-weight: 400;
}

.page-disclaimer .disc-log__text {
  margin: 0 0 18px;
  max-width: 600px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--muted);
}

/* ---------- 右侧小注列 ---------- */

.page-disclaimer .disc-aside {
  display: grid;
  gap: 24px;
  align-content: start;
}

@media (min-width: 1024px) {
  .page-disclaimer .disc-aside {
    position: sticky;
    top: 104px;
  }
}

.page-disclaimer .disc-note {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-disclaimer .disc-note__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--teal);
}

.page-disclaimer .disc-note__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

.page-disclaimer .disc-note__text .more-link {
  color: var(--teal-soft);
  border-bottom-color: var(--line);
}