/* ============ 使用说明页 · 独立条款文档样式 ============ */
.page-disclaimer {
  --disc-text: #D5DAE3;
  --disc-panel: var(--cab);
  --disc-line: var(--steel);
  background-color: var(--ink);
  color: var(--white);
}

.page-disclaimer .disc-hero__inner,
.page-disclaimer .disc-body {
  width: min(var(--container), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
}

/* ---------- 页首文档封面横幅 ---------- */
.page-disclaimer .disc-hero {
  position: relative;
  padding: clamp(22px, 3.6vw, 40px) 0 clamp(34px, 5.4vw, 60px);
  background-color: var(--ink);
  border-bottom: 1px solid var(--disc-line);
  overflow: hidden;
}

.page-disclaimer .disc-hero__glow {
  position: absolute;
  top: -240px;
  right: -160px;
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(255, 138, 31, 0.22), transparent 62%);
  pointer-events: none;
}

.page-disclaimer .disc-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(41, 48, 61, 0.42) 1px, transparent 1px),
    linear-gradient(90deg, rgba(41, 48, 61, 0.42) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(120% 95% at 18% 0%, #000 18%, transparent 76%);
  mask-image: radial-gradient(120% 95% at 18% 0%, #000 18%, transparent 76%);
  pointer-events: none;
}

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

.page-disclaimer .disc-crumb {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-disclaimer .disc-crumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--mist);
}

.page-disclaimer .disc-crumb__list a {
  color: var(--mist);
  text-decoration: none;
}

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

.page-disclaimer .disc-crumb__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--mist-dim);
}

.page-disclaimer .disc-hero__sidenote {
  display: none;
}

.page-disclaimer .disc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-disclaimer .disc-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid rgba(69, 216, 230, 0.5);
  background: rgba(69, 216, 230, 0.07);
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: 0.04em;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}

.page-disclaimer .disc-hero__badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

.page-disclaimer .disc-hero__stamp {
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--mist-dim);
}

.page-disclaimer .disc-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(46px, 10vw, 88px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.page-disclaimer .disc-hero__title::after {
  content: "";
  display: block;
  width: 96px;
  height: 6px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--amber), var(--gold));
}

.page-disclaimer .disc-hero__lead {
  max-width: 62ch;
  margin: clamp(20px, 2.8vw, 30px) 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--amber);
  font-size: 16px;
  line-height: 1.85;
  color: var(--disc-text);
}

.page-disclaimer .disc-hero__figure {
  position: relative;
  margin: clamp(26px, 4vw, 46px) 0 0;
  border: 1px solid var(--disc-line);
  background: var(--disc-panel);
}

.page-disclaimer .disc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1400 / 450;
  object-fit: cover;
}

.page-disclaimer .disc-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 4px);
  pointer-events: none;
}

.page-disclaimer .disc-hero__caption {
  position: absolute;
  right: 0;
  bottom: 0;
  padding: 6px 12px;
  background: rgba(10, 11, 15, 0.86);
  border-top: 1px solid var(--disc-line);
  border-left: 1px solid var(--disc-line);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 正文骨架 ---------- */
.page-disclaimer .disc-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  padding-top: clamp(40px, 6vw, 84px);
  padding-bottom: clamp(56px, 8vw, 120px);
}

/* ---------- 目录与筛选 ---------- */
.page-disclaimer .disc-toc {
  border: 1px solid var(--disc-line);
  background: var(--disc-panel);
  padding: 18px 18px 22px;
}

.page-disclaimer .disc-toc__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--mist);
  text-transform: uppercase;
}

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

.page-disclaimer .disc-toc__list li + li {
  border-top: 1px solid rgba(41, 48, 61, 0.72);
}

.page-disclaimer .disc-toc__list a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 10px 2px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--disc-text);
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-disclaimer .disc-toc__list a:hover {
  color: var(--cyan);
  padding-left: 8px;
}

.page-disclaimer .disc-toc__list .l8-mono {
  font-size: 13px;
  color: var(--amber);
}

.page-disclaimer .disc-toc__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--disc-line);
}

.page-disclaimer .disc-filter {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--mist);
  background: transparent;
  border: 1px solid var(--disc-line);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}

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

.page-disclaimer .disc-filter[aria-pressed="true"],
.page-disclaimer .disc-filter.is-active {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
}

.page-disclaimer .disc-filter__n {
  font-size: 11px;
  opacity: 0.75;
}

.page-disclaimer .disc-status {
  margin: 12px 0 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist-dim);
}

/* ---------- 编号条款 ---------- */
.page-disclaimer .disc-clauses {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
  min-width: 0;
}

.page-disclaimer .disc-clause {
  position: relative;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  column-gap: clamp(14px, 2.4vw, 26px);
  padding: clamp(20px, 3vw, 34px) clamp(18px, 3vw, 36px) clamp(24px, 3.4vw, 38px) clamp(16px, 2.6vw, 30px);
  background: linear-gradient(160deg, rgba(20, 24, 33, 0.98), rgba(10, 11, 15, 0.98));
  border: 1px solid var(--disc-line);
  border-left: 3px solid var(--steel);
  transition: border-left-color 0.26s ease;
}

.page-disclaimer .disc-clause:hover {
  border-left-color: var(--amber);
}

.page-disclaimer .disc-clause::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 0 14px 14px;
  border-color: transparent transparent var(--steel) transparent;
  transition: border-color 0.26s ease;
}

.page-disclaimer .disc-clause:hover::after {
  border-color: transparent transparent var(--amber) transparent;
}

.page-disclaimer .disc-clause__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: var(--amber-deep);
  border: 1px solid rgba(255, 138, 31, 0.6);
  color: var(--amber);
  font-size: 18px;
  letter-spacing: 0.04em;
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

.page-disclaimer .disc-clause__main {
  min-width: 0;
}

.page-disclaimer .disc-clause__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.5vw, 27px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-disclaimer .disc-clause__summary {
  margin: 0 0 16px;
  padding-left: 12px;
  border-left: 2px solid rgba(69, 216, 230, 0.65);
  font-size: 15px;
  line-height: 1.7;
  color: var(--cyan);
}

.page-disclaimer .disc-clause__text p {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--disc-text);
}

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

.page-disclaimer .disc-clause__text a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(69, 216, 230, 0.45);
}

.page-disclaimer .disc-clause__text a:hover {
  color: var(--gold);
  text-decoration-color: currentColor;
}

/* ---------- 收束块与回到顶部 ---------- */
.page-disclaimer .disc-closing {
  margin: 0;
  padding: clamp(18px, 3vw, 26px) clamp(18px, 3vw, 30px);
  background: rgba(20, 24, 33, 0.72);
  border: 1px solid var(--disc-line);
  border-left: 3px solid var(--cyan);
  font-size: 15px;
  line-height: 1.85;
  color: var(--disc-text);
}

.page-disclaimer .disc-closing a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(69, 216, 230, 0.45);
}

.page-disclaimer .disc-closing a:hover {
  color: var(--gold);
}

.page-disclaimer .disc-top {
  display: flex;
  justify-content: flex-end;
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-disclaimer .disc-top__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--disc-line);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-disclaimer .disc-top__link:hover {
  color: var(--amber);
  border-color: var(--amber);
}

/* ---------- 桌面：左目录 + 右条款 ---------- */
@media (min-width: 920px) {
  .page-disclaimer .disc-body {
    grid-template-columns: minmax(250px, 3fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-disclaimer .disc-toc {
    position: sticky;
    top: 96px;
  }

  .page-disclaimer .disc-hero__sidenote {
    display: block;
    position: absolute;
    top: 0;
    right: 0;
    writing-mode: vertical-rl;
    font-size: 12px;
    letter-spacing: 0.34em;
    color: var(--mist-dim);
  }
}

/* ---------- 窄屏 ---------- */
@media (max-width: 620px) {
  .page-disclaimer .disc-clause {
    grid-template-columns: 1fr;
    row-gap: 14px;
  }

  .page-disclaimer .disc-clause__num {
    width: 44px;
    height: 44px;
    font-size: 16px;
  }

  .page-disclaimer .disc-hero__stamp {
    display: none;
  }
}
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