.page-disclaimer {
  --doc-grid: 48px;
  --doc-line: 1px solid var(--line);
  position: relative;
  isolation: isolate;
}

.page-disclaimer::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(30, 58, 82, 0.38) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 58, 82, 0.38) 1px, transparent 1px);
  background-size: var(--doc-grid) var(--doc-grid);
  -webkit-mask-image: radial-gradient(120% 55% at 50% 0%, #000 0%, transparent 82%);
  mask-image: radial-gradient(120% 55% at 50% 0%, #000 0%, transparent 82%);
}

.page-disclaimer [id] {
  scroll-margin-top: 5.5rem;
}

.page-disclaimer .doc-crumbs {
  padding-top: clamp(16px, 3vw, 26px);
}

/* ---------- 首屏 ---------- */

.page-disclaimer .doc-hero {
  padding: clamp(18px, 3.5vw, 34px) 0 clamp(26px, 5vw, 46px);
  border-bottom: var(--doc-line);
}

.page-disclaimer .doc-hero__inner {
  display: grid;
  gap: clamp(22px, 4vw, 36px);
}

.page-disclaimer .doc-hero__title {
  margin: 0.55rem 0 0;
  font-size: clamp(1.85rem, 5.6vw, 2.95rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-disclaimer .doc-hero__lede {
  margin: clamp(14px, 2.4vw, 20px) 0 0;
  max-width: 36ch;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--note);
}

.page-disclaimer .doc-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--doc-line);
}

.page-disclaimer .doc-index__item {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.68rem 0;
  border-bottom: var(--doc-line);
}

.page-disclaimer .doc-index__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .doc-index__link {
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--fog);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-disclaimer .doc-index__link:hover,
.page-disclaimer .doc-index__link:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

@media (min-width: 900px) {
  .page-disclaimer .doc-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: clamp(32px, 6vw, 72px);
    align-items: start;
  }
}

/* ---------- 适用范围 ---------- */

.page-disclaimer .scope-grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  margin-top: clamp(20px, 3.5vw, 32px);
}

.page-disclaimer .scope-grid__title {
  margin: 0 0 0.9rem;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-disclaimer .scope-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .scope-list__item {
  position: relative;
  padding: 0.7rem 0 0.7rem 1.5rem;
  border-top: var(--doc-line);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--note);
}

.page-disclaimer .scope-list__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.35rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
}

.page-disclaimer .scope-grid__text {
  margin: 0;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--note);
}

.page-disclaimer .scope-grid__link {
  display: inline-block;
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid var(--signal-deep);
  padding-bottom: 2px;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-disclaimer .scope-grid__link:hover,
.page-disclaimer .scope-grid__link:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

@media (min-width: 880px) {
  .page-disclaimer .scope-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-disclaimer .scope-grid__col--side {
    padding-left: clamp(20px, 3vw, 34px);
    border-left: var(--doc-line);
  }
}

/* ---------- 版本对照 ---------- */

.page-disclaimer .doc-figure {
  margin: clamp(20px, 3.5vw, 32px) 0 clamp(22px, 3.5vw, 34px);
}

.page-disclaimer .doc-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--signal-deep);
  background: var(--hold);
}

.page-disclaimer .doc-figure__cap {
  margin: 0.7rem 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--note);
  max-width: 60ch;
}

.page-disclaimer .versus {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--doc-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-disclaimer .versus__col {
  background: var(--ink);
  padding: clamp(20px, 3.4vw, 30px);
  outline-offset: -3px;
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-disclaimer .versus__col--live {
  border-top: 3px solid var(--signal);
}

.page-disclaimer .versus__col--legacy {
  border-top: 3px solid var(--alert);
}

.page-disclaimer .versus__col--live:hover,
.page-disclaimer .versus__col--live:focus-visible {
  background: #0F2739;
  box-shadow: inset 4px 0 0 0 var(--signal);
}

.page-disclaimer .versus__col--legacy:hover,
.page-disclaimer .versus__col--legacy:focus-visible {
  background: #12222F;
  box-shadow: inset 4px 0 0 0 var(--alert);
}

.page-disclaimer .versus__head {
  display: grid;
  gap: 0.7rem;
  justify-items: start;
}

.page-disclaimer .versus__title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-disclaimer .versus__list {
  margin: clamp(14px, 2.6vw, 20px) 0 0;
}

.page-disclaimer .versus__list dt {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--note);
  border-top: var(--doc-line);
  padding-top: 0.85rem;
}

.page-disclaimer .versus__list dt:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.page-disclaimer .versus__list dd {
  margin: 0.3rem 0 0.9rem;
  font-size: 0.98rem;
  line-height: 1.74;
  color: var(--fog);
}

.page-disclaimer .versus__list dd:last-of-type {
  margin-bottom: 0;
}

.page-disclaimer .versus__col--legacy .versus__list dd {
  color: var(--note);
}

.page-disclaimer .versus__foot {
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding-left: 1rem;
  border-left: 2px solid var(--amber);
  font-size: 0.96rem;
  line-height: 1.78;
  color: var(--note);
  max-width: 62ch;
}

@media (min-width: 880px) {
  .page-disclaimer .versus {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

/* ---------- 内容来源时间轴 ---------- */

.page-disclaimer .sig-flow {
  list-style: none;
  margin: clamp(22px, 3.5vw, 32px) 0 0;
  padding: 0;
}

.page-disclaimer .sig-flow__item {
  position: relative;
  padding: 0 0 clamp(20px, 3vw, 28px) clamp(22px, 3.6vw, 32px);
  border-left: var(--doc-line);
}

.page-disclaimer .sig-flow__item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-disclaimer .sig-flow__item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 0.42rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--signal-deep);
}

.page-disclaimer .sig-flow__item:first-child::before {
  background: var(--signal);
  border-color: var(--signal);
  box-shadow: 0 0 0 4px rgba(61, 245, 192, 0.14);
}

.page-disclaimer .sig-flow__time {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.09em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .sig-flow__title {
  margin: 0.45rem 0 0;
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-disclaimer .sig-flow__text {
  margin: 0.5rem 0 0;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--note);
  max-width: 52ch;
}

.page-disclaimer .src-note {
  margin-top: clamp(24px, 4vw, 36px);
  padding-top: clamp(18px, 3vw, 26px);
  border-top: var(--doc-line);
}

.page-disclaimer .src-note__text {
  margin: 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--note);
  max-width: 62ch;
}

.page-disclaimer .src-note__stats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 4vw, 46px);
  margin: clamp(16px, 3vw, 24px) 0 0;
  padding: 0;
}

.page-disclaimer .src-note__stat {
  display: grid;
  gap: 0.2rem;
}

.page-disclaimer .src-note__num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .src-note__label {
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--note);
}

/* ---------- 访问环境 ---------- */

.page-disclaimer .env-list {
  list-style: none;
  margin: clamp(20px, 3.5vw, 30px) 0 0;
  padding: 0;
  border-top: var(--doc-line);
}

.page-disclaimer .env-list__item {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0 0.9rem;
  padding: clamp(16px, 2.6vw, 24px) 0;
  border-bottom: var(--doc-line);
}

.page-disclaimer .env-list__no {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--amber);
  padding-top: 0.28rem;
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .env-list__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-disclaimer .env-list__text {
  margin: 0.5rem 0 0;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--note);
  max-width: 56ch;
}

/* ---------- 账号 ---------- */

.page-disclaimer .acct-panel {
  padding: clamp(22px, 4vw, 40px);
  border-radius: var(--radius);
}

.page-disclaimer .acct-panel__head {
  margin-bottom: clamp(18px, 3vw, 26px);
}

.page-disclaimer .acct-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .acct-list__item {
  padding: clamp(14px, 2.4vw, 20px) 0;
  border-top: 1px solid rgba(11, 27, 43, 0.18);
}

.page-disclaimer .acct-list__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-disclaimer .acct-list__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-disclaimer .acct-list__text {
  margin: 0.45rem 0 0;
  font-size: 1rem;
  line-height: 1.78;
  max-width: 60ch;
}

.page-disclaimer .acct-panel__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.6rem;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding-top: clamp(16px, 2.6vw, 22px);
  border-top: 1px solid rgba(11, 27, 43, 0.18);
}

.page-disclaimer .acct-panel__link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: #16674F;
  text-decoration: none;
  border-bottom: 1px solid #16674F;
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-disclaimer .acct-panel__link:hover,
.page-disclaimer .acct-panel__link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* ---------- 常见问题与收束 ---------- */

.page-disclaimer .trb-fold {
  margin-top: clamp(20px, 3.5vw, 30px);
}

.page-disclaimer .signoff {
  position: relative;
  margin-top: clamp(28px, 5vw, 46px);
  padding: clamp(20px, 3.4vw, 30px) clamp(20px, 3.4vw, 30px) clamp(20px, 3.4vw, 30px) clamp(24px, 4vw, 38px);
  background: var(--hold);
  border: var(--doc-line);
  border-left: 3px solid var(--signal);
  border-radius: var(--radius);
}

.page-disclaimer .signoff__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--signal);
}

.page-disclaimer .signoff__text {
  margin: 0.75rem 0 0;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--fog);
  max-width: 54ch;
}

.page-disclaimer .signoff__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: clamp(16px, 3vw, 24px) 0 0;
}

@media (min-width: 900px) {
  .page-disclaimer .signoff {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: clamp(20px, 4vw, 44px);
  }
  .page-disclaimer .signoff__label {
    grid-column: 1 / -1;
  }
  .page-disclaimer .signoff__text {
    margin-top: 0;
  }
  .page-disclaimer .signoff__acts {
    margin-top: 0;
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .doc-index__link,
  .page-disclaimer .scope-grid__link,
  .page-disclaimer .acct-panel__link,
  .page-disclaimer .versus__col {
    transition: none;
  }
}