/* ===== 使用说明页 · page-disclaimer ===== */
.page-disclaimer {
  --disc-rule: rgba(29, 58, 82, .85);
  --disc-rule-soft: rgba(29, 58, 82, .52);
  --disc-cyan-soft: rgba(34, 224, 207, .08);
  --disc-ink: rgba(242, 237, 227, .86);
  --disc-ink-dim: rgba(138, 154, 165, .96);
  background: var(--yb-night);
  color: var(--yb-cream);
  overflow-x: hidden;
}

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

/* ---------- 页首横幅 ---------- */
.page-disclaimer .disc-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(22px, 4vw, 40px) 0 clamp(30px, 5vw, 54px);
  border-bottom: 1px solid var(--disc-rule);
  background:
    radial-gradient(112% 82% at 92% -12%, rgba(34, 224, 207, .15), transparent 62%),
    radial-gradient(84% 62% at 2% 0%, rgba(192, 102, 63, .13), transparent 58%),
    linear-gradient(180deg, var(--yb-panel) 0%, var(--yb-night) 80%);
}

.page-disclaimer .disc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(29, 58, 82, .36) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 58, 82, .36) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .78), rgba(0, 0, 0, 0) 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .78), rgba(0, 0, 0, 0) 88%);
}

.page-disclaimer .yb-breadcrumb {
  font-family: var(--yb-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--yb-rock);
  margin: 0 0 clamp(16px, 3vw, 26px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-disclaimer .yb-breadcrumb a {
  color: var(--yb-rock);
  text-decoration: none;
  transition: color var(--yb-t);
}

.page-disclaimer .yb-breadcrumb a:hover,
.page-disclaimer .yb-breadcrumb a:focus-visible {
  color: var(--yb-cyan);
}

.page-disclaimer .yb-breadcrumb [aria-current="page"] {
  color: var(--yb-cream);
}

.page-disclaimer .disc-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 40px);
}

.page-disclaimer .yb-eyebrow {
  font-family: var(--yb-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--yb-cyan);
  margin: 0 0 12px;
}

.page-disclaimer .disc-hero__title {
  font-family: var(--yb-head);
  font-weight: 800;
  font-size: clamp(1.9rem, 5.4vw, 3.4rem);
  line-height: 1.04;
  letter-spacing: -.01em;
  margin: 0 0 clamp(14px, 2vw, 20px);
  color: var(--yb-cream);
  max-width: 22ch;
}

.page-disclaimer .disc-hero__intro {
  margin: 0;
  font-size: clamp(15px, 1.2vw, 16.5px);
  line-height: 1.72;
  color: var(--disc-ink);
  max-width: 62ch;
}

.page-disclaimer .disc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

/* 版本卡 */
.page-disclaimer .disc-vcard {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 18px 18px 20px;
  border: 2px solid var(--yb-gridline);
  border-top: 3px solid var(--yb-cyan);
  background: rgba(5, 12, 21, .74);
  box-shadow: var(--yb-shadow);
}

.page-disclaimer .disc-vcard__label {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--yb-cyan);
}

.page-disclaimer .disc-vcard .yb-version {
  width: 100%;
}

.page-disclaimer .disc-vcard__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.66;
  color: var(--disc-ink-dim);
}

/* 首屏横幅图 */
.page-disclaimer .disc-hero__figure {
  margin: clamp(24px, 4vw, 42px) 0 0;
}

.page-disclaimer .yb-figure__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-disclaimer .yb-figure__cap {
  font-family: var(--yb-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--yb-rock);
}

@media (min-width: 900px) {
  .page-disclaimer .disc-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

/* ---------- 双列对照区 ---------- */
.page-disclaimer .disc-usage {
  padding: clamp(38px, 6vw, 76px) 0 0;
}

.page-disclaimer .disc-usage .yb-section__head {
  margin-bottom: clamp(24px, 3.6vw, 40px);
}

.page-disclaimer .yb-section__note {
  color: var(--disc-ink-dim);
  max-width: 68ch;
}

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

.page-disclaimer .disc-row {
  display: grid;
  grid-template-columns: 1fr;
  border-bottom: 1px solid var(--disc-rule-soft);
  transition: opacity var(--yb-t), background var(--yb-t);
}

.page-disclaimer .disc-row__scene {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 22px 0 14px;
}

.page-disclaimer .disc-row__meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.page-disclaimer .disc-row__no {
  font-family: var(--yb-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--yb-cyan);
}

.page-disclaimer .disc-row__icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--yb-gridline);
  background: rgba(29, 58, 82, .32);
  color: var(--yb-cyan);
  transition: border-color var(--yb-t), background var(--yb-t);
}

.page-disclaimer .disc-row__title {
  margin: 0 0 6px;
  font-family: var(--yb-head);
  font-weight: 700;
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  line-height: 1.26;
  letter-spacing: .01em;
  color: var(--yb-cream);
}

.page-disclaimer .disc-row__lead {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.62;
  color: var(--disc-ink-dim);
}

.page-disclaimer .disc-row__scope {
  padding: 0 0 24px;
  transition: background var(--yb-t), box-shadow var(--yb-t);
}

.page-disclaimer .disc-row__scope .yb-tag {
  font-family: var(--yb-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
}

.page-disclaimer .disc-row__scope p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--disc-ink);
}

.page-disclaimer .disc-row__scope a,
.page-disclaimer .disc-notes a {
  color: var(--yb-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-disclaimer .disc-row__scope a:hover,
.page-disclaimer .disc-notes a:hover {
  color: var(--yb-orange);
}

.page-disclaimer .disc-notes {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-disclaimer .disc-notes li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.64;
  color: var(--disc-ink-dim);
}

.page-disclaimer .disc-notes li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .6em;
  width: 6px;
  height: 6px;
  background: var(--yb-orange);
  transform: rotate(45deg);
}

/* hover / focus 高亮对应说明 */
.page-disclaimer .disc-row:hover .disc-row__scope,
.page-disclaimer .disc-row:focus-within .disc-row__scope {
  background: var(--disc-cyan-soft);
  box-shadow: inset 3px 0 0 var(--yb-cyan);
}

.page-disclaimer .disc-row:hover .disc-row__icon,
.page-disclaimer .disc-row:focus-within .disc-row__icon {
  border-color: var(--yb-cyan);
  background: rgba(34, 224, 207, .12);
}

@media (hover: hover) {
  .page-disclaimer .disc-rows:hover .disc-row {
    opacity: .52;
  }
  .page-disclaimer .disc-rows:hover .disc-row:hover,
  .page-disclaimer .disc-rows:hover .disc-row:focus-within {
    opacity: 1;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .disc-row {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
  .page-disclaimer .disc-row__scene {
    padding: 30px 30px 30px 0;
    border-right: 1px solid var(--disc-rule-soft);
  }
  .page-disclaimer .disc-row__scope {
    padding: 30px 0 30px 30px;
  }
}

/* ---------- 收尾联系区 ---------- */
.page-disclaimer .disc-foot {
  padding: clamp(34px, 6vw, 72px) 0 clamp(44px, 7vw, 84px);
}

.page-disclaimer .disc-foot__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.2vw, 38px);
  padding: clamp(22px, 3.4vw, 36px);
  border: 2px solid var(--yb-gridline);
  border-left: 4px solid var(--yb-orange);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(34, 224, 207, .1), transparent 58%),
    linear-gradient(135deg, rgba(18, 36, 56, .94), rgba(5, 12, 21, .94));
  box-shadow: var(--yb-shadow);
}

.page-disclaimer .disc-foot__title {
  font-family: var(--yb-head);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.6vw, 1.9rem);
  line-height: 1.18;
  margin: 0 0 12px;
  color: var(--yb-cream);
}

.page-disclaimer .disc-foot__copy p {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--disc-ink);
  max-width: 58ch;
}

.page-disclaimer .disc-foot__list {
  margin: 0;
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-disclaimer .disc-foot__list div {
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--disc-rule-soft);
}

.page-disclaimer .disc-foot__list div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-disclaimer .disc-foot__list dt {
  font-family: var(--yb-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--yb-rock);
  margin: 0 0 5px;
}

.page-disclaimer .disc-foot__list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--yb-cream);
  overflow-wrap: anywhere;
}

.page-disclaimer .disc-totop {
  margin-top: 22px;
  display: inline-flex;
}

@media (min-width: 900px) {
  .page-disclaimer .disc-foot__panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 560px) {
  .page-disclaimer .disc-row__scene {
    grid-template-columns: auto minmax(0, 1fr);
  }
}
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