.page-disclaimer {
  --disc-chapter-num: clamp(2rem, 4.5vw, 3.4rem);
  background: var(--deep-sea);
  color: var(--mist);
  overflow-x: hidden;
}

.page-disclaimer *,
.page-disclaimer *::before,
.page-disclaimer *::after {
  box-sizing: border-box;
}

/* ===== 页头横幅 ===== */
.page-disclaimer .disc-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: clamp(420px, 62vh, 540px);
  padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(3rem, 6vw, 4.5rem);
  isolation: isolate;
  overflow: hidden;
}

.page-disclaimer .disc-hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-disclaimer .disc-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  opacity: 0.5;
  filter: saturate(0.9) contrast(1.05);
}

.page-disclaimer .disc-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 78% 18%, rgba(47, 243, 208, 0.16), transparent 55%),
    linear-gradient(180deg, rgba(6, 42, 51, 0.35) 0%, rgba(6, 42, 51, 0.72) 52%, rgba(4, 24, 31, 0.96) 100%);
}

.page-disclaimer .disc-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.page-disclaimer .disc-hero .breadcrumb {
  margin-bottom: clamp(1rem, 2.4vw, 1.75rem);
}

.page-disclaimer .disc-hero .eyebrow {
  color: var(--cyan);
  letter-spacing: 0.16em;
}

.page-disclaimer .disc-hero__inner h1 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 5.2vw, 3.4rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--mist);
  margin: 0.85rem 0 1.25rem;
  max-width: 22ch;
}

.page-disclaimer .disc-hero .lede {
  color: var(--mist-86);
  font-size: clamp(0.94rem, 1.4vw, 1.05rem);
  line-height: 1.85;
  max-width: 56ch;
  margin: 0;
}

.page-disclaimer .disc-hero__line {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: clamp(40px, 6vw, 64px);
  z-index: 2;
  opacity: 0.75;
  pointer-events: none;
}

/* ===== 布局 ===== */
.page-disclaimer .disc-body {
  padding-top: clamp(2rem, 5vw, 3.5rem);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
  background:
    linear-gradient(180deg, var(--deep-sea) 0%, var(--deep-sea) 60%, rgba(6, 42, 51, 0.94) 100%);
}

.page-disclaimer .disc-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2rem);
}

/* ===== 左侧索引（移动端为胶囊条） ===== */
.page-disclaimer .disc-aside {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--mist-10);
}

.page-disclaimer .disc-aside__label {
  display: none;
  margin: 0 0 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--sand);
}

.page-disclaimer .disc-aside__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .disc-aside__list a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-pill);
  background: var(--mist-06);
  border: 1px solid var(--mist-10);
  color: var(--mist-64);
  font-size: 0.8rem;
  text-decoration: none;
  transition: color 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-disclaimer .disc-aside__list a:hover,
.page-disclaimer .disc-aside__list a:focus-visible {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  outline: none;
}

.page-disclaimer .disc-aside__num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--sand);
}

.page-disclaimer .disc-aside__list a:hover .disc-aside__num {
  color: var(--ink);
}

.page-disclaimer .disc-aside__top {
  display: none;
  margin-top: 1.5rem;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--mist-64);
  text-decoration: none;
  border-bottom: 1px dashed var(--mist-16);
  padding-bottom: 0.2rem;
  width: max-content;
}

.page-disclaimer .disc-aside__top:hover {
  color: var(--cyan);
}

/* ===== 章节 ===== */
.page-disclaimer .disc-articles {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.page-disclaimer .disc-chapter {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: clamp(1.5rem, 3.5vw, 2.75rem) 0;
  border-top: 1px solid var(--mist-10);
  scroll-margin-top: 96px;
}

.page-disclaimer .disc-chapter:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-disclaimer .disc-chapter__side {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
}

.page-disclaimer .disc-chapter__num {
  font-family: var(--font-mono);
  font-size: var(--disc-chapter-num);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--cyan);
  font-weight: 400;
  flex-shrink: 0;
}

.page-disclaimer .disc-chapter__title {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  font-weight: 800;
  color: var(--mist);
  line-height: 1.3;
  margin: 0;
}

.page-disclaimer .disc-chapter__body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
  color: var(--mist-86);
}

.page-disclaimer .disc-chapter__body p {
  margin: 0;
  font-size: clamp(0.94rem, 1.1vw, 1rem);
  line-height: 1.85;
}

.page-disclaimer .disc-chapter__body strong {
  color: var(--mist);
  font-weight: 600;
}

.page-disclaimer .disc-chapter__body em {
  color: var(--sand);
  font-style: normal;
  font-weight: 600;
}

.page-disclaimer .disc-chapter__body a {
  color: var(--aqua);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-30);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-disclaimer .disc-chapter__body a:hover,
.page-disclaimer .disc-chapter__body a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  outline: none;
}

/* ===== 可折叠条款 ===== */
.page-disclaimer .disc-fold {
  background: var(--mist-06);
  border: 1px solid var(--mist-10);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-disclaimer .disc-fold[open] {
  background: rgba(47, 243, 208, 0.05);
  border-color: var(--cyan-16);
}

.page-disclaimer .disc-fold summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  list-style: none;
  cursor: pointer;
  padding: 0.85rem 1.05rem;
  color: var(--mist);
  font-size: 0.92rem;
  font-weight: 500;
  user-select: none;
  transition: color 0.2s var(--ease);
}

.page-disclaimer .disc-fold summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .disc-fold summary::before {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  border: 1px solid var(--cyan-30);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1;
  flex-shrink: 0;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease);
}

.page-disclaimer .disc-fold[open] summary::before {
  content: "−";
  background: var(--cyan);
  color: var(--ink);
  border-color: var(--cyan);
}

.page-disclaimer .disc-fold summary:hover {
  color: var(--cyan);
}

.page-disclaimer .disc-fold > *:not(summary) {
  padding: 0 1.1rem 1.05rem 3.15rem;
  margin: 0;
  color: var(--mist-64);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* ===== 底部继续查阅 ===== */
.page-disclaimer .disc-closing {
  padding: clamp(2.5rem, 6vw, 4rem) 0;
  background: var(--ink);
  border-top: 1px solid var(--mist-10);
  position: relative;
}

.page-disclaimer .disc-closing::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan-30), transparent);
}

.page-disclaimer .disc-closing .eyebrow {
  color: var(--aqua);
}

.page-disclaimer .disc-closing .section-title {
  color: var(--mist);
  margin: 0.5rem 0 0;
}

.page-disclaimer .disc-closing__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-disclaimer .disc-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.05rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--mist-16);
  color: var(--mist-86);
  font-size: 0.86rem;
  text-decoration: none;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-disclaimer .disc-link::after {
  content: "→";
  color: var(--sand);
  font-family: var(--font-mono);
  transition: transform 0.25s var(--ease);
}

.page-disclaimer .disc-link:hover,
.page-disclaimer .disc-link:focus-visible {
  background: var(--mist-10);
  border-color: var(--cyan-30);
  color: var(--cyan);
  transform: translateY(-1px);
  outline: none;
}

.page-disclaimer .disc-link:hover::after {
  transform: translateX(3px);
}

/* ===== 桌面端布局 ===== */
@media (min-width: 900px) {
  .page-disclaimer .disc-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 3.75rem);
    align-items: start;
  }

  .page-disclaimer .disc-aside {
    display: block;
    position: sticky;
    top: 96px;
    padding: 0;
    border-bottom: 0;
  }

  .page-disclaimer .disc-aside__label {
    display: block;
  }

  .page-disclaimer .disc-aside__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0.15rem;
  }

  .page-disclaimer .disc-aside__list a {
    width: 100%;
    padding: 0.6rem 0.7rem;
    border-radius: var(--radius-sm);
    background: transparent;
    border-color: transparent;
  }

  .page-disclaimer .disc-aside__list a:hover {
    background: var(--mist-06);
    color: var(--cyan);
    border-color: transparent;
  }

  .page-disclaimer .disc-aside__list a:hover .disc-aside__num {
    color: var(--cyan);
  }

  .page-disclaimer .disc-aside__top {
    display: inline-block;
  }

  .page-disclaimer .disc-chapter {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(1.75rem, 3.5vw, 3rem);
    padding: clamp(2.25rem, 3.8vw, 3rem) 0;
  }

  .page-disclaimer .disc-chapter__side {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    align-self: start;
    position: sticky;
    top: 108px;
  }

  .page-disclaimer .disc-chapter__title {
    max-width: 9ch;
  }
}

/* ===== 大屏微调 ===== */
@media (min-width: 1280px) {
  .page-disclaimer .disc-hero__inner h1 {
    max-width: 24ch;
  }
  .page-disclaimer .disc-chapter__title {
    max-width: 10ch;
  }
}

/* ===== 动效（渐进增强） ===== */
.page-disclaimer .reveal {
  opacity: 1;
}

@media (prefers-reduced-motion: no-preference) {
  .page-disclaimer .reveal {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  }
  .page-disclaimer .reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* ===== 中等宽度：索引条不溢出 ===== */
@media (max-width: 480px) {
  .page-disclaimer .disc-aside__list a {
    font-size: 0.75rem;
    padding: 0.4rem 0.65rem;
  }
  .page-disclaimer .disc-chapter__num {
    font-size: 1.85rem;
  }
  .page-disclaimer .disc-fold > *:not(summary) {
    padding-left: 1.05rem;
  }
}

done