.page-disclaimer {
  --doc-line: #D8DFE7;
  --doc-tint: #EEF2F6;
  --doc-shadow: 8px 8px 0 rgba(11, 74, 143, 0.08);
  background: var(--paper);
  color: var(--graphite);
}

/* 版本信息带 */
.page-disclaimer .doc-version {
  background: var(--ink-900);
  border-bottom: 3px solid var(--orange);
}

.page-disclaimer .doc-version__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding-block: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--silver);
}

.page-disclaimer .doc-version__tag {
  background: var(--orange);
  color: var(--ink-900);
  font-weight: 700;
  padding: 3px 8px;
  letter-spacing: 0.08em;
}

.page-disclaimer .doc-version__num {
  color: var(--paper);
  font-weight: 700;
}

.page-disclaimer .doc-version__sep {
  width: 28px;
  height: 1px;
  background: rgba(201, 210, 220, 0.5);
}

.page-disclaimer .doc-version__note {
  color: #A9B9CA;
}

/* 首屏 */
.page-disclaimer .doc-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(31, 182, 201, 0.18) 0%, rgba(31, 182, 201, 0) 55%),
    linear-gradient(158deg, var(--ink-900) 0%, var(--ink-800) 58%, var(--blue) 100%);
  color: var(--paper);
  padding-block: clamp(24px, 5vw, 46px) clamp(32px, 6vw, 64px);
}

.page-disclaimer .doc-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(201, 210, 220, 0.1) 0 1px,
    transparent 1px 84px
  );
  pointer-events: none;
}

.page-disclaimer .doc-hero__inner {
  position: relative;
  z-index: 1;
}

.page-disclaimer .doc-hero .crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(20px, 4vw, 32px);
  font-size: 13px;
  color: #AFC0D4;
}

.page-disclaimer .doc-hero .crumb a {
  color: #AFC0D4;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-disclaimer .doc-hero .crumb a:hover,
.page-disclaimer .doc-hero .crumb a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-disclaimer .doc-hero .crumb [aria-current="page"] {
  color: var(--paper);
}

.page-disclaimer .doc-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-disclaimer .doc-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-disclaimer .doc-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.2rem, 9vw, 4.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-disclaimer .doc-hero__intro {
  max-width: 48ch;
  margin: 20px 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: #DCE6F2;
}

.page-disclaimer .doc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-disclaimer .doc-hero__chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border: 1px solid rgba(201, 210, 220, 0.42);
  background: rgba(7, 26, 51, 0.55);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: #D7E2EE;
}

.page-disclaimer .doc-hero__chip--accent {
  border-color: var(--orange);
  color: #FFD9BC;
}

.page-disclaimer .doc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-disclaimer .doc-hero__media {
  margin: 0;
  border: 2px solid rgba(201, 210, 220, 0.45);
  overflow: hidden;
  background: rgba(7, 26, 51, 0.6);
}

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

/* 正文与侧栏 */
.page-disclaimer .doc-body {
  padding-block: clamp(28px, 5vw, 56px) clamp(44px, 7vw, 84px);
}

.page-disclaimer .doc-article {
  min-width: 0;
}

.page-disclaimer .doc-sect {
  scroll-margin-top: 104px;
  margin: 0 0 clamp(26px, 4vw, 38px);
  padding-bottom: clamp(20px, 3vw, 28px);
  border-bottom: 1px solid var(--doc-line);
}

.page-disclaimer .doc-sect:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.page-disclaimer .doc-sect h2 {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 16px;
  padding-left: 14px;
  border-left: 6px solid var(--blue);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.2rem, 4.2vw, 1.55rem);
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-disclaimer .doc-sect__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--orange-deep);
  transform: translateY(-2px);
}

.page-disclaimer .doc-sect .prose p {
  color: #253342;
}

.page-disclaimer .doc-sect .prose a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(11, 74, 143, 0.42);
}

.page-disclaimer .doc-sect .prose a:hover,
.page-disclaimer .doc-sect .prose a:focus-visible {
  border-bottom-color: var(--orange);
  color: var(--orange-deep);
}

.page-disclaimer .doc-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-disclaimer .doc-list > li {
  position: relative;
  padding-left: 24px;
  font-size: 1rem;
  line-height: 1.85;
  color: #2B3947;
}

.page-disclaimer .doc-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 9px;
  height: 9px;
  background: var(--blue);
}

.page-disclaimer .doc-key {
  font-weight: 700;
  color: var(--ink-900);
}

.page-disclaimer .doc-list + .prose {
  margin-top: 20px;
}

/* 禁止行为清单 */
.page-disclaimer .doc-rules {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-disclaimer .doc-rule {
  border: 2px solid var(--silver);
  background: var(--paper);
  padding: 13px 15px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease),
    background-color 0.2s var(--ease);
}

.page-disclaimer .doc-rule[open] {
  border-color: var(--blue);
  background: #FCFDFE;
  box-shadow: var(--doc-shadow);
}

.page-disclaimer .doc-rule summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  list-style: none;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1.6;
}

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

.page-disclaimer .doc-rule summary::after {
  content: "＋";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--blue);
}

.page-disclaimer .doc-rule[open] summary::after {
  content: "－";
  color: var(--orange-deep);
}

.page-disclaimer .doc-rule summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-disclaimer .doc-rule__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange-deep);
}

.page-disclaimer .doc-rule__name {
  font-weight: 700;
  color: var(--ink-900);
}

.page-disclaimer .doc-rule p {
  margin: 12px 0 0;
  padding-left: 30px;
  font-size: 0.95rem;
  line-height: 1.85;
  color: #3A4757;
}

/* 联系方式清单 */
.page-disclaimer .doc-contact {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--doc-line);
  border: 2px solid var(--ink-900);
}

.page-disclaimer .doc-contact li {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  align-items: baseline;
  padding: 12px 14px;
  background: var(--mist);
  font-size: 0.95rem;
  line-height: 1.7;
  color: #253342;
}

.page-disclaimer .doc-contact__key {
  flex: none;
  width: 44px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--blue);
}

.page-disclaimer .doc-contact a {
  color: var(--ink-900);
  text-decoration: none;
  border-bottom: 1px solid rgba(11, 74, 143, 0.4);
  word-break: break-all;
}

.page-disclaimer .doc-contact a:hover,
.page-disclaimer .doc-contact a:focus-visible {
  color: var(--orange-deep);
  border-bottom-color: var(--orange);
}

/* 侧栏 */
.page-disclaimer .doc-aside {
  margin-top: 36px;
  display: grid;
  gap: 18px;
}

.page-disclaimer .doc-aside__card {
  border: 2px solid var(--ink-900);
  background: var(--doc-tint);
  padding: 18px 18px 20px;
}

.page-disclaimer .doc-aside__title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--blue);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--blue);
}

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

.page-disclaimer .doc-toc li + li {
  border-top: 1px solid #D9E0E8;
}

.page-disclaimer .doc-toc a {
  display: flex;
  gap: 10px;
  padding: 9px 0;
  font-size: 0.9rem;
  line-height: 1.55;
  color: #2B3947;
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-disclaimer .doc-toc a:hover,
.page-disclaimer .doc-toc a:focus-visible {
  color: var(--blue);
  padding-left: 4px;
}

.page-disclaimer .doc-toc a:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-disclaimer .doc-toc__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange-deep);
  padding-top: 2px;
}

.page-disclaimer .doc-aside__contact {
  background: var(--ink-900);
  border-left: 6px solid var(--orange);
  padding: 18px;
  color: #D7E2EE;
}

.page-disclaimer .doc-aside__contact-title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-disclaimer .doc-aside__contact-text {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: #B9C7D6;
}

.page-disclaimer .doc-aside__contact-line {
  margin: 14px 0 0;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-disclaimer .doc-aside__link {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: #FFD9BC;
  text-decoration: none;
  border-bottom: 1px solid rgba(240, 122, 42, 0.6);
}

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

/* 进入视口显现 */
.page-disclaimer [data-reveal].reveal-pending {
  opacity: 0.001;
  transform: translateY(12px);
}

.page-disclaimer [data-reveal].is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 0.24s var(--ease), transform 0.24s var(--ease);
}

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-disclaimer .doc-version__inner {
    font-size: 13px;
  }

  .page-disclaimer .doc-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-disclaimer .doc-hero__media {
    aspect-ratio: 16 / 10;
  }
}

@media (min-width: 940px) {
  .page-disclaimer .doc-body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 56px;
    align-items: start;
  }

  .page-disclaimer .doc-aside {
    margin-top: 0;
    position: sticky;
    top: 96px;
    align-content: start;
  }

  .page-disclaimer .doc-sect h2 {
    font-size: 1.55rem;
  }
}

@media (min-width: 1180px) {
  .page-disclaimer .doc-body {
    grid-template-columns: minmax(0, 1fr) 328px;
    gap: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer [data-reveal].reveal-pending {
    opacity: 1;
    transform: none;
  }

  .page-disclaimer .doc-toc a,
  .page-disclaimer .doc-rule {
    transition: none;
  }
}

@media print {
  .page-disclaimer .doc-aside,
  .page-disclaimer .doc-hero__media,
  .page-disclaimer .doc-hero__actions {
    display: none;
  }

  .page-disclaimer .doc-sect {
    break-inside: avoid;
    border-bottom-color: #999;
  }

  .page-disclaimer .doc-hero {
    background: none;
    color: #000;
  }

  .page-disclaimer .doc-hero h1,
  .page-disclaimer .doc-hero__intro {
    color: #000;
  }
}