.page-disclaimer {
  --disc-line: rgba(45, 92, 142, 0.32);
  --disc-line-soft: rgba(45, 92, 142, 0.16);

  position: relative;
  overflow-x: hidden;
  background-color: var(--deep-navy);
  background-image:
    linear-gradient(to right, var(--disc-line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--disc-line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: -1px -1px;
  color: var(--paper);
}

.page-disclaimer .disc-head {
  padding-top: clamp(44px, 7vw, 88px);
  padding-bottom: clamp(26px, 4vw, 42px);
}

.page-disclaimer h1 {
  margin: 14px 0 0;
  font-family: var(--font-sans);
  font-size: clamp(30px, 5vw, 46px);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-disclaimer .disc-lede {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 18px;
  line-height: 1.9;
  color: var(--mist-text);
}

/* ---- 顶部图 ---- */
.page-disclaimer .disc-hero {
  position: relative;
  margin: 0;
  width: 100%;
  aspect-ratio: 16 / 6;
  max-height: 460px;
  overflow: hidden;
  border-top: 1px solid var(--disc-line-soft);
  border-bottom: 1px solid var(--disc-line-soft);
}

.page-disclaimer .disc-hero img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  object-position: center;
}

/* ---- 条款目录 ---- */
.page-disclaimer .disc-toc {
  margin: clamp(32px, 5vw, 56px) 0 0;
  padding: clamp(20px, 3vw, 28px) clamp(18px, 3vw, 30px);
  background: linear-gradient(135deg, rgba(16, 42, 76, 0.68), rgba(8, 24, 46, 0.32));
  border: 1px solid var(--disc-line);
  border-left: 3px solid var(--cyan-glow);
  border-radius: var(--radius-m);
}

.page-disclaimer .disc-toc-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--cyan-glow);
}

.page-disclaimer .disc-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-disclaimer .disc-toc-list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 8px;
  border-radius: var(--radius-s);
  color: var(--paper);
  text-decoration: none;
  font-size: 16px;
  line-height: 1.6;
  transition: background-color 180ms var(--ease), color 180ms var(--ease);
}

.page-disclaimer .disc-toc-list a:hover,
.page-disclaimer .disc-toc-list a:focus-visible {
  background-color: rgba(47, 243, 214, 0.09);
  color: var(--cyan-glow);
}

.page-disclaimer .disc-toc-list a:focus-visible {
  outline: 2px solid var(--cyan-glow);
  outline-offset: 2px;
}

.page-disclaimer .disc-toc-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--cyan-glow);
}

/* ---- 条款正文 ---- */
.page-disclaimer .disc-body {
  padding-top: clamp(34px, 5vw, 60px);
  padding-bottom: clamp(8px, 2vw, 24px);
}

.page-disclaimer .disc-sec {
  border-top: 1px solid var(--disc-line-soft);
  scroll-margin-top: 96px;
}

.page-disclaimer .disc-sec:last-of-type {
  border-bottom: 1px solid var(--disc-line-soft);
}

.page-disclaimer .disc-sec-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: clamp(20px, 3vw, 30px) 0;
  cursor: pointer;
  list-style: none;
}

.page-disclaimer .disc-sec-head::-webkit-details-marker {
  display: none;
}

.page-disclaimer .disc-sec-head:focus-visible {
  outline: 2px solid var(--cyan-glow);
  outline-offset: 4px;
  border-radius: var(--radius-s);
}

.page-disclaimer .disc-num {
  flex: 0 0 auto;
  margin-top: 7px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--cyan-glow);
}

.page-disclaimer .disc-sec-title {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  line-height: 1.42;
  letter-spacing: -0.01em;
  color: var(--paper);
  transition: color 200ms var(--ease);
}

.page-disclaimer .disc-sec-head:hover .disc-sec-title {
  color: var(--cyan-glow);
}

.page-disclaimer .disc-chevron {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: 12px;
  border-right: 2px solid var(--cyan-glow);
  border-bottom: 2px solid var(--cyan-glow);
  transform: rotate(225deg);
  transition: transform 260ms var(--ease);
}

.page-disclaimer .disc-sec:not([open]) .disc-chevron {
  transform: rotate(45deg);
}

.page-disclaimer .disc-sec-body {
  padding: 0 0 clamp(24px, 3.4vw, 36px);
}

.page-disclaimer .disc-sec-body p {
  margin: 0 0 14px;
  font-size: 18px;
  line-height: 1.9;
  color: var(--mist-text);
}

.page-disclaimer .disc-sec-body p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .disc-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-disclaimer .disc-list li {
  position: relative;
  padding: 16px 0 16px 28px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--paper);
  border-top: 1px dashed var(--disc-line-soft);
}

.page-disclaimer .disc-list li:last-child {
  border-bottom: 1px dashed var(--disc-line-soft);
}

.page-disclaimer .disc-list li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 27px;
  width: 9px;
  height: 9px;
  box-sizing: border-box;
  border: 1.5px solid var(--cyan-glow);
  border-radius: 50%;
}

.page-disclaimer .disc-item-title {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 8px;
  border-radius: 4px;
  background: rgba(47, 243, 214, 0.1);
  color: var(--cyan-glow);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  vertical-align: 1px;
}

.page-disclaimer .disc-list a {
  color: var(--cyan-glow);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-disclaimer .disc-list a:hover,
.page-disclaimer .disc-list a:focus-visible {
  color: var(--pulse-amber);
}

.page-disclaimer .disc-list a:focus-visible {
  outline: 2px solid var(--cyan-glow);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ---- 页脚前收束带 ---- */
.page-disclaimer .disc-end-rule {
  position: relative;
  height: 1px;
  margin: clamp(44px, 6vw, 76px) 0 clamp(48px, 7vw, 84px);
  background: linear-gradient(to right, transparent, var(--disc-line) 14%, var(--disc-line) 86%, transparent);
}

.page-disclaimer .disc-end-rule::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 64px;
  height: 3px;
  transform: translateX(-50%);
  border-radius: 2px;
  background: var(--cyan-glow);
}

/* ---- 响应式 ---- */
@media (max-width: 900px) {
  .page-disclaimer .disc-toc-list {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 960px) {
  .page-disclaimer .disc-toc-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2px 20px;
  }
}

@media (max-width: 700px) {
  .page-disclaimer {
    background-size: 48px 48px;
  }

  .page-disclaimer .disc-hero {
    aspect-ratio: 5 / 3;
    max-height: 300px;
  }

  .page-disclaimer .disc-sec-head {
    gap: 12px;
  }

  .page-disclaimer .disc-num {
    margin-top: 4px;
    font-size: 12px;
  }

  .page-disclaimer .disc-chevron {
    margin-top: 9px;
  }

  .page-disclaimer .disc-list li {
    padding-left: 22px;
    font-size: 16px;
  }

  .page-disclaimer .disc-list li::before {
    left: 0;
    top: 24px;
    width: 8px;
    height: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer *,
  .page-disclaimer *::before,
  .page-disclaimer *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}