.page-disclaimer {
  position: relative;
  overflow-x: clip;
}

/* ===== 面包屑 ===== */
.page-disclaimer .crumbs {
  padding: 20px 0 0;
}

/* ===== 首屏 ===== */
.page-disclaimer .doc-hero {
  padding: 26px 0 6px;
}

.page-disclaimer .doc-hero .eyebrow {
  display: inline-block;
  margin: 0;
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-disclaimer .doc-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(38px, 8vw, 60px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--ivory);
  text-shadow: 0 -1px 0 rgba(227, 178, 60, .55);
}

.page-disclaimer .doc-hero__rule {
  display: block;
  width: 84px;
  height: 2px;
  margin: 22px 0 20px;
  background: linear-gradient(90deg, var(--gold), rgba(227, 178, 60, 0));
}

.page-disclaimer .doc-hero__lede {
  max-width: 62ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-soft);
}

/* ===== 顶部氛围图 ===== */
.page-disclaimer .doc-banner {
  margin: 30px 0 0;
}

.page-disclaimer .doc-banner__frame {
  aspect-ratio: 8 / 3;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 160% at 0% 0%, rgba(139, 92, 246, .26), transparent 62%),
    radial-gradient(120% 160% at 100% 100%, rgba(227, 178, 60, .18), transparent 60%),
    var(--ink-900);
}

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

/* ===== 说明流 ===== */
.page-disclaimer .doc-stream {
  display: grid;
  gap: 20px;
  margin: 44px 0 0;
}

.page-disclaimer .doc-sec {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 26px 20px 28px 24px;
  border-left: 2px solid var(--line-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: linear-gradient(180deg, rgba(21, 27, 61, .62), rgba(11, 16, 38, .24));
  transition: border-color 260ms var(--ease), background-color 260ms var(--ease);
}

.page-disclaimer .doc-sec::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 0;
  width: 2px;
  height: 32%;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--gold), var(--violet));
  transition: height 440ms var(--ease);
  pointer-events: none;
}

.page-disclaimer .doc-sec:hover,
.page-disclaimer .doc-sec:focus-within {
  border-color: rgba(227, 178, 60, .5);
}

.page-disclaimer .doc-sec:hover::before,
.page-disclaimer .doc-sec:focus-within::before {
  height: 100%;
}

.page-disclaimer .doc-sec__num {
  font-family: var(--font-num);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .05em;
  color: var(--gold);
}

.page-disclaimer .doc-sec__title {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(21px, 3.2vw, 27px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--ivory);
  text-shadow: 0 -1px 0 rgba(227, 178, 60, .35);
}

.page-disclaimer .doc-sec__body p {
  max-width: 68ch;
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-disclaimer .doc-sec__body p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .doc-sec__tail {
  margin-top: 18px !important;
  padding-left: 14px;
  border-left: 2px solid var(--line);
  font-size: 15px;
  color: var(--mist);
}

.page-disclaimer .doc-sec__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: 18px;
}

.page-disclaimer .doc-mail {
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--gold);
  word-break: break-all;
}

.page-disclaimer .doc-link {
  color: var(--ivory);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

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

/* 列表 */
.page-disclaimer .doc-list {
  display: grid;
  gap: 9px;
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.page-disclaimer .doc-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-disclaimer .doc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 10px rgba(227, 178, 60, .55);
}

/* ===== 设备卡片 ===== */
.page-disclaimer .device-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 20px 0 0;
}

.page-disclaimer .device {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 18px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(11, 16, 38, .62);
  outline: none;
  transition: border-color 240ms var(--ease), transform 240ms var(--ease), background-color 240ms var(--ease);
}

.page-disclaimer .device:hover,
.page-disclaimer .device:focus-visible,
.page-disclaimer .device:focus-within {
  border-color: var(--gold);
  transform: translateY(-2px);
  background: rgba(21, 27, 61, .88);
}

.page-disclaimer .device__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(227, 178, 60, .4);
  border-radius: 12px;
  color: var(--gold);
  background: radial-gradient(circle at 30% 20%, rgba(139, 92, 246, .38), transparent 72%);
}

.page-disclaimer .device__name {
  margin-top: 12px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 16px;
  letter-spacing: .01em;
  color: var(--ivory);
}

.page-disclaimer .device__req {
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.65;
  letter-spacing: .01em;
  color: var(--mist);
}

/* ===== 底部入口 ===== */
.page-disclaimer .doc-cta {
  display: grid;
  gap: 12px;
  margin: 40px 0 0;
  padding: 30px 22px 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 150% at 6% 0%, rgba(139, 92, 246, .3), transparent 62%),
    radial-gradient(130% 170% at 100% 100%, rgba(227, 178, 60, .2), transparent 64%),
    rgba(21, 27, 61, .78);
}

.page-disclaimer .doc-cta__eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-disclaimer .doc-cta__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--ivory);
  text-shadow: 0 -1px 0 rgba(227, 178, 60, .4);
}

.page-disclaimer .doc-cta__text {
  max-width: 62ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-disclaimer .doc-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: 6px;
}

/* ===== 章节索引（桌面端） ===== */
.page-disclaimer .chapter-rail {
  display: none;
}

/* ===== 平板与桌面 ===== */
@media (min-width: 760px) {
  .page-disclaimer .doc-hero {
    padding-top: 34px;
  }

  .page-disclaimer .doc-stream {
    gap: 24px;
    margin-top: 56px;
  }

  .page-disclaimer .doc-sec {
    grid-template-columns: 92px 1fr;
    gap: 28px;
    padding: 34px 34px 38px;
  }

  .page-disclaimer .doc-sec__num {
    font-size: 38px;
    padding-top: 3px;
    text-align: right;
  }

  .page-disclaimer .doc-banner {
    margin-top: 38px;
  }

  .page-disclaimer .doc-cta {
    padding: 40px 38px 42px;
    margin-top: 52px;
  }

  .page-disclaimer .device-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 1000px) {
  .page-disclaimer .device-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-disclaimer .device {
    min-height: 132px;
  }
}

/* 桌面端指针设备：系统要求悬停演示 */
@media (hover: hover) and (pointer: fine) and (min-width: 1000px) {
  .page-disclaimer .device__req {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 320ms var(--ease), opacity 240ms var(--ease), margin-top 320ms var(--ease);
  }

  .page-disclaimer .device:hover .device__req,
  .page-disclaimer .device:focus-within .device__req,
  .page-disclaimer .device:focus-visible .device__req {
    max-height: 7em;
    margin-top: 10px;
    opacity: 1;
  }
}

/* ===== 章节索引桌面端呈现 ===== */
@media (min-width: 1180px) {
  .page-disclaimer .chapter-rail {
    position: fixed;
    top: 50%;
    right: 26px;
    z-index: 8;
    display: flex;
    flex-direction: column;
    gap: 15px;
    transform: translateY(-50%);
  }

  .page-disclaimer .chapter-rail__link {
    display: flex;
    flex-direction: row-reverse;
    align-items: center;
    gap: 10px;
    text-decoration: none;
  }

  .page-disclaimer .chapter-rail__dot {
    width: 8px;
    height: 8px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: transparent;
    transition: background-color 240ms var(--ease), border-color 240ms var(--ease), transform 240ms var(--ease);
  }

  .page-disclaimer .chapter-rail__label {
    padding: 3px 8px;
    border-radius: 6px;
    background: rgba(11, 16, 38, .9);
    font-size: 12px;
    letter-spacing: .08em;
    white-space: nowrap;
    color: var(--mist);
    opacity: 0;
    transform: translateX(8px);
    transition: opacity 240ms var(--ease), transform 240ms var(--ease), color 240ms var(--ease);
  }

  .page-disclaimer .chapter-rail__link:hover .chapter-rail__dot,
  .page-disclaimer .chapter-rail__link:focus-visible .chapter-rail__dot,
  .page-disclaimer .chapter-rail__link[data-active="true"] .chapter-rail__dot {
    background: var(--gold);
    border-color: var(--gold);
    transform: scale(1.15);
  }

  .page-disclaimer .chapter-rail__link:hover .chapter-rail__label,
  .page-disclaimer .chapter-rail__link:focus-visible .chapter-rail__label,
  .page-disclaimer .chapter-rail__link[data-active="true"] .chapter-rail__label {
    opacity: 1;
    transform: none;
    color: var(--ivory);
  }
}

/* ===== 窄屏 ===== */
@media (max-width: 700px) {
  .page-disclaimer .doc-banner__frame {
    aspect-ratio: 16 / 9;
  }
}

@media (max-width: 420px) {
  .page-disclaimer .doc-sec {
    padding: 22px 16px 24px 18px;
  }

  .page-disclaimer .doc-cta {
    padding: 24px 16px 26px;
  }

  .page-disclaimer .doc-cta__actions .btn,
  .page-disclaimer .doc-sec__actions .btn {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .doc-sec::before,
  .page-disclaimer .device,
  .page-disclaimer .device__req,
  .page-disclaimer .chapter-rail__dot,
  .page-disclaimer .chapter-rail__label,
  .page-disclaimer .doc-link {
    transition: none;
  }

  .page-disclaimer .device:hover,
  .page-disclaimer .device:focus-within {
    transform: none;
  }
}