.page-disclaimer {
  position: relative;
  overflow-x: hidden;
  background-color: var(--c-pitch);
  background-image:
    linear-gradient(to right, rgba(36, 52, 65, 0.42) 1px, transparent 1px),
    radial-gradient(circle at 86% -6%, rgba(198, 255, 61, 0.09), transparent 48%),
    radial-gradient(circle at 4% 22%, rgba(255, 106, 31, 0.07), transparent 42%);
  background-size: 112px 100%, 100% 100%, 100% 100%;
  background-repeat: repeat, no-repeat, no-repeat;
  color: var(--c-white);
  font-family: var(--font-sans);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .disc-hero {
  padding-block: clamp(36px, 6.5vw, 88px) clamp(28px, 4.5vw, 52px);
  border-bottom: 2px solid var(--c-steel);
}

.page-disclaimer .disc-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 44px);
  margin-top: clamp(22px, 3.6vw, 44px);
}

.page-disclaimer .disc-hero__title {
  margin: 10px 0 0;
  font-size: clamp(46px, 9vw, 104px);
  font-weight: 300;
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--c-white);
}

.page-disclaimer .disc-hero__sub {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--c-orange);
}

.page-disclaimer .disc-hero__intro {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-dim);
}

/* ---------- 章节索引 ---------- */
.page-disclaimer .disc-index {
  margin-top: clamp(28px, 4.5vw, 54px);
  padding-top: 16px;
  border-top: 2px solid var(--c-steel);
}

.page-disclaimer .disc-index__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .disc-index__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 6px 11px 12px;
  border-bottom: 1px solid var(--c-steel);
  border-left: 3px solid transparent;
  color: var(--c-dim);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.4;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-disclaimer .disc-index__list a:hover,
.page-disclaimer .disc-index__list a:focus-visible {
  color: var(--c-lime);
  border-left-color: var(--c-lime);
  background-color: rgba(198, 255, 61, 0.05);
}

.page-disclaimer .disc-index__list .mono {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-orange);
}

/* ---------- 条款主体 ---------- */
.page-disclaimer .disc-body {
  padding-block: clamp(8px, 1.6vw, 18px) clamp(24px, 4vw, 44px);
}

.page-disclaimer .disc-clause {
  border-bottom: 2px solid var(--c-steel);
  padding-block: clamp(16px, 2.6vw, 28px);
}

.page-disclaimer .disc-clause__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  cursor: pointer;
  list-style: none;
  padding: 4px 0;
}

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

.page-disclaimer .disc-clause__head::after {
  content: "";
  flex: none;
  margin-left: auto;
  align-self: center;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--c-lime);
  border-bottom: 2px solid var(--c-lime);
  transform: rotate(45deg);
  transition: transform 0.22s ease;
}

.page-disclaimer .disc-clause[open] .disc-clause__head::after {
  transform: rotate(-135deg);
}

.page-disclaimer .disc-clause__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--c-orange);
  padding-top: 4px;
}

.page-disclaimer .disc-clause__title {
  font-size: clamp(20px, 2.8vw, 30px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--c-white);
  padding-left: 12px;
  border-left: 4px solid var(--c-lime);
}

.page-disclaimer .disc-clause__body {
  padding-top: clamp(12px, 2vw, 22px);
}

.page-disclaimer .disc-clause__body p {
  max-width: 68ch;
  margin: 0 0 15px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-dim);
}

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

/* ---------- 配图 ---------- */
.page-disclaimer .disc-figure {
  margin: clamp(18px, 2.8vw, 30px) 0;
  max-width: 900px;
  border: 2px solid var(--c-steel);
  background-color: var(--c-panel-2);
}

.page-disclaimer .disc-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-disclaimer .disc-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--c-steel);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-muted);
}

/* ---------- 统计口径示意图 ---------- */
.page-disclaimer .disc-diagram {
  margin: clamp(18px, 2.8vw, 30px) 0;
  padding: clamp(10px, 1.6vw, 20px);
  border: 2px solid var(--c-steel);
  background-color: var(--c-panel-2);
  box-shadow: var(--hard-shadow-sm);
}

.page-disclaimer .disc-diagram__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .disc-diagram__svg {
  display: block;
  width: 100%;
  min-width: 620px;
  height: auto;
}

.page-disclaimer .disc-diagram figcaption {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--c-steel);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-muted);
}

.page-disclaimer .dgm-box {
  fill: var(--c-panel);
  stroke: var(--c-steel);
  stroke-width: 2;
  transition: stroke 0.2s ease;
}

.page-disclaimer .dgm-link {
  stroke: var(--c-cyan);
  stroke-width: 2;
  stroke-linecap: square;
}

.page-disclaimer .dgm-stage__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  fill: var(--c-orange);
  text-anchor: middle;
}

.page-disclaimer .dgm-stage__label {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  fill: var(--c-white);
  text-anchor: middle;
}

.page-disclaimer .dgm-dim__title {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 800;
  fill: var(--c-lime);
  text-anchor: middle;
}

.page-disclaimer .dgm-dim__row {
  font-family: var(--font-sans);
  font-size: 11.5px;
  fill: var(--c-muted);
  text-anchor: middle;
}

.page-disclaimer .dgm-tip {
  font-family: var(--font-sans);
  font-size: 10.5px;
  fill: var(--c-cyan);
  text-anchor: middle;
  opacity: 0;
  transition: opacity 0.18s ease;
}

.page-disclaimer .dgm-dim:hover .dgm-box {
  stroke: var(--c-lime);
}

.page-disclaimer .dgm-dim:hover .dgm-tip {
  opacity: 1;
}

/* ---------- 引用约定要点 ---------- */
.page-disclaimer .disc-points {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 78ch;
}

.page-disclaimer .disc-points li {
  position: relative;
  padding: 13px 16px 13px 46px;
  border: 2px solid var(--c-steel);
  background-color: var(--c-panel);
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-dim);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-disclaimer .disc-points li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 20px;
  width: 12px;
  height: 12px;
  background-color: var(--c-lime);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-disclaimer .disc-points li:hover {
  border-color: var(--c-lime);
}

.page-disclaimer .disc-points strong {
  color: var(--c-white);
  font-weight: 700;
}

/* ---------- 联系方式 ---------- */
.page-disclaimer .disc-contact__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 4px 0 18px;
  padding: 0;
  max-width: 78ch;
  border-top: 2px solid var(--c-steel);
}

.page-disclaimer .disc-contact__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  padding: 13px 4px;
  border-bottom: 1px solid var(--c-steel);
}

.page-disclaimer .disc-contact__item dt {
  flex: none;
  min-width: 84px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-muted);
}

.page-disclaimer .disc-contact__item dd {
  margin: 0;
  font-size: 16px;
  color: var(--c-white);
  word-break: break-word;
}

.page-disclaimer .disc-contact__item dd.mono {
  font-family: var(--font-mono);
  color: var(--c-lime);
  letter-spacing: 0.02em;
}

.page-disclaimer .disc-contact__note {
  max-width: 68ch;
  padding-left: 14px;
  border-left: 4px solid var(--c-orange);
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-dim);
}

/* ---------- 底部互跳 ---------- */
.page-disclaimer .disc-links {
  padding-block: clamp(24px, 4vw, 44px);
  border-top: 2px solid var(--c-steel);
  background-color: var(--c-panel-2);
}

.page-disclaimer .disc-links__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .disc-links__list a {
  display: inline-block;
  padding: 9px 16px;
  border: 2px solid var(--c-steel);
  color: var(--c-white);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}

.page-disclaimer .disc-links__list a:hover,
.page-disclaimer .disc-links__list a:focus-visible {
  border-color: var(--c-lime);
  color: var(--c-lime);
}

.page-disclaimer .disc-links__list a[aria-current="page"] {
  background-color: var(--c-lime);
  border-color: var(--c-lime);
  color: var(--c-pitch);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-disclaimer .disc-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .disc-index__list a {
    border-right: 1px solid var(--c-steel);
    padding-inline: 16px 12px;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .disc-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-disclaimer .disc-index__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .disc-contact__list {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 1200px) {
  .page-disclaimer .disc-clause__body {
    padding-left: 42px;
  }

  .page-disclaimer .disc-contact__item dt {
    min-width: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-index__list a,
  .page-disclaimer .disc-clause__head::after,
  .page-disclaimer .dgm-box,
  .page-disclaimer .dgm-tip,
  .page-disclaimer .disc-points li,
  .page-disclaimer .disc-links__list a {
    transition: none;
  }
}
</main>