.page-disclaimer {
  position: relative;
  padding-top: 4px;
  --inst-gap: clamp(18px, 3vw, 26px);
}

.page-disclaimer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--magenta) 52%, var(--amber) 100%);
  pointer-events: none;
}

.page-disclaimer .breadcrumb {
  padding-top: clamp(20px, 4vw, 36px);
  font-size: 0.8125rem;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .inst-head {
  padding: clamp(18px, 3vw, 28px) 0 clamp(10px, 2vw, 16px);
}

.page-disclaimer .inst-head h1 {
  margin: 14px 0 0;
  max-width: 24ch;
  font-size: clamp(1.9rem, 7vw, 3.4rem);
  line-height: 1.06;
  letter-spacing: 0.01em;
}

.page-disclaimer .inst-head .lede {
  margin: 18px 0 0;
  max-width: 60ch;
  color: var(--ink);
  font-size: clamp(1rem, 2.6vw, 1.125rem);
  line-height: 1.85;
}

.page-disclaimer .inst-head__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.875rem;
  color: var(--muted);
}

.page-disclaimer .inst-head__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.page-disclaimer .inst-head__facts .mono {
  color: var(--cyan);
  font-size: 0.875rem;
}

.page-disclaimer .inst-banner {
  position: relative;
  margin: clamp(20px, 4vw, 34px) 0 0;
  aspect-ratio: 8 / 3;
  overflow: hidden;
  border: 2px solid var(--line);
  background: var(--bg-deep);
  box-shadow: var(--shadow-card);
}

.page-disclaimer .inst-banner img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 区块节奏 ---------- */
.page-disclaimer .section {
  padding-top: clamp(38px, 6vw, 64px);
}

.page-disclaimer .section-head {
  margin-bottom: clamp(16px, 3vw, 26px);
}

.page-disclaimer .section-head__aside {
  color: var(--cyan);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
}

/* ---------- 01 栏目对照条 ---------- */
.page-disclaimer .inst-map {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--line);
}

.page-disclaimer .inst-map__row {
  display: grid;
  grid-template-columns: 3rem 1fr auto;
  grid-template-areas:
    "num name go"
    "num use use";
  gap: 6px 14px;
  align-items: center;
  min-height: 64px;
  padding: 14px 10px 14px 8px;
  border-bottom: 2px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  transition: background 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-disclaimer .inst-map__row:hover,
.page-disclaimer .inst-map__row:focus-visible {
  background: var(--mid);
  box-shadow: inset 3px 0 0 var(--cyan);
  outline: none;
}

.page-disclaimer .inst-map__row:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-disclaimer .inst-map__num {
  grid-area: num;
  color: var(--muted);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  transition: color 180ms var(--ease);
}

.page-disclaimer .inst-map__name {
  grid-area: name;
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.3;
}

.page-disclaimer .inst-map__use {
  grid-area: use;
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

.page-disclaimer .inst-map__go {
  grid-area: go;
  align-self: center;
  padding: 3px 9px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  white-space: nowrap;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-disclaimer .inst-map__row:hover .inst-map__num,
.page-disclaimer .inst-map__row:focus-visible .inst-map__num {
  color: var(--cyan);
}

.page-disclaimer .inst-map__row:hover .inst-map__go,
.page-disclaimer .inst-map__row:focus-visible .inst-map__go {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 02 规则条目 ---------- */
.page-disclaimer .inst-rules {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--line);
}

.page-disclaimer .inst-rule {
  display: flex;
  gap: 16px;
  padding: var(--inst-gap) 12px var(--inst-gap) 8px;
  border-bottom: 2px solid var(--line);
  transition: background 180ms var(--ease);
}

.page-disclaimer .inst-rule:hover,
.page-disclaimer .inst-rule:focus-within {
  background: var(--mid);
}

.page-disclaimer .inst-rule__num {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 2px solid var(--line);
  background: var(--bg-deep);
  color: var(--muted);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: background 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-disclaimer .inst-rule:hover .inst-rule__num,
.page-disclaimer .inst-rule:focus-within .inst-rule__num {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--bg-deep);
}

.page-disclaimer .inst-rule__body {
  min-width: 0;
}

.page-disclaimer .inst-rule__body h3 {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.45;
}

.page-disclaimer .inst-rule__body p {
  margin: 8px 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

/* ---------- 03 更新说明规格表 ---------- */
.page-disclaimer .inst-spec {
  border-top: 2px solid var(--line);
}

.page-disclaimer .inst-spec__row {
  display: grid;
  gap: 8px;
  padding: clamp(16px, 3vw, 22px) 8px;
  border-bottom: 2px solid var(--line);
}

.page-disclaimer .inst-spec__key {
  color: var(--amber);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
}

.page-disclaimer .inst-spec__val {
  min-width: 0;
}

.page-disclaimer .inst-spec__strong {
  margin: 0;
  max-width: 62ch;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.5;
}

.page-disclaimer .inst-spec__val p + p {
  margin: 8px 0 0;
  font-weight: 400;
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

/* ---------- 04 引用与转载 ---------- */
.page-disclaimer .inst-reuse {
  gap: 20px;
}

.page-disclaimer .inst-reuse__card {
  padding: clamp(18px, 3vw, 26px);
  border: 2px solid var(--line);
  background: var(--mid);
  box-shadow: var(--shadow-card);
  transition: transform 180ms var(--ease), box-shadow 180ms var(--ease), border-color 180ms var(--ease);
}

.page-disclaimer .inst-reuse__card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: var(--shadow-card-hover);
}

.page-disclaimer .inst-reuse__card--need:hover {
  border-color: var(--amber);
}

.page-disclaimer .inst-reuse__card h3 {
  margin: 14px 0 0;
  font-size: 1.0625rem;
  line-height: 1.45;
  color: var(--ink);
}

.page-disclaimer .inst-reuse__card ul {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .inst-reuse__card li {
  position: relative;
  margin-top: 10px;
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.page-disclaimer .inst-reuse__card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.page-disclaimer .inst-reuse__card--need li::before {
  background: var(--amber);
}

.page-disclaimer .inst-reuse__mail {
  margin: 22px 0 0;
  padding: 14px 16px;
  border-left: 4px solid var(--cyan);
  background: var(--bg-deep);
  color: var(--ink);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.page-disclaimer .inst-reuse__mail .mono {
  color: var(--cyan);
  word-break: break-all;
}

/* ---------- 05 访问注意 ---------- */
.page-disclaimer .inst-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: inst-step;
  border-top: 2px solid var(--line);
}

.page-disclaimer .inst-steps li {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 0 14px;
  padding: var(--inst-gap) 8px;
  border-bottom: 2px solid var(--line);
  transition: background 180ms var(--ease);
}

.page-disclaimer .inst-steps li:hover {
  background: var(--mid);
}

.page-disclaimer .inst-steps li::before {
  counter-increment: inst-step;
  content: counter(inst-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1.3;
  letter-spacing: 0.04em;
  color: var(--line);
  transition: color 180ms var(--ease);
}

.page-disclaimer .inst-steps li:hover::before {
  color: var(--cyan);
}

.page-disclaimer .inst-steps__title {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.45;
  color: var(--ink);
}

.page-disclaimer .inst-steps__text {
  margin: 8px 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

/* ---------- 06 收束强调条 ---------- */
.page-disclaimer .inst-end {
  padding-bottom: clamp(34px, 6vw, 70px);
}

.page-disclaimer .inst-final {
  display: grid;
  gap: 16px;
  padding-top: 22px;
  border-top: 3px solid var(--amber);
}

.page-disclaimer .inst-final__label {
  margin: 0;
  color: var(--amber);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
}

.page-disclaimer .inst-final__text {
  margin: 0;
  max-width: 62ch;
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.85;
}

.page-disclaimer .inst-final__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 780px) {
  .page-disclaimer .inst-map__row {
    grid-template-columns: 3.4rem minmax(8rem, 13rem) 1fr auto;
    grid-template-areas: "num name use go";
    gap: 0 20px;
    height: 64px;
    min-height: 64px;
    padding: 0 14px 0 8px;
  }

  .page-disclaimer .inst-spec__row {
    grid-template-columns: 180px 1fr;
    gap: 0 32px;
    align-items: start;
  }

  .page-disclaimer .inst-spec__key {
    padding-top: 4px;
  }

  .page-disclaimer .inst-steps li {
    grid-template-columns: 64px 1fr;
    gap: 0 20px;
  }

  .page-disclaimer .inst-rule__num {
    width: 46px;
    height: 46px;
  }
}

@media (max-width: 480px) {
  .page-disclaimer .inst-banner {
    aspect-ratio: 4 / 3;
  }

  .page-disclaimer .inst-rule {
    gap: 12px;
  }

  .page-disclaimer .inst-steps li {
    grid-template-columns: 38px 1fr;
    gap: 0 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .inst-map__row,
  .page-disclaimer .inst-rule,
  .page-disclaimer .inst-rule__num,
  .page-disclaimer .inst-reuse__card,
  .page-disclaimer .inst-steps li,
  .page-disclaimer .inst-steps li::before {
    transition: none;
  }

  .page-disclaimer .inst-reuse__card:hover {
    transform: none;
  }
}