/* ===== 使用说明页专属样式 ===== */
.page-disclaimer {
  --disc-accent: var(--accent-1);
  --disc-violet: var(--accent-2);
  --disc-gold: var(--accent-3);
  --disc-danger: var(--danger);
  --disc-dim: var(--text-dim);
  --disc-line: rgba(245, 240, 230, 0.14);
  --disc-green-soft: rgba(0, 255, 163, 0.08);
  --disc-red-soft: rgba(255, 92, 92, 0.05);

  position: relative;
  background: var(--bg-ink);
  color: var(--text);
}

.page-disclaimer::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46%;
  height: 17rem;
  background: linear-gradient(135deg, transparent 12%, rgba(123, 47, 255, 0.2) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 22% 100%);
  pointer-events: none;
  z-index: 0;
}

.page-disclaimer::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 9rem;
  background: linear-gradient(0deg, rgba(0, 255, 163, 0.06), transparent 80%);
  pointer-events: none;
  z-index: 0;
}

.page-disclaimer .disc-shell {
  position: relative;
  z-index: 1;
  padding-top: 2rem;
  padding-bottom: 5rem;
}

/* ----- 面包屑 ----- */
.page-disclaimer .breadcrumb {
  margin: 0 0 2.25rem;
}

.page-disclaimer .breadcrumb a {
  color: var(--disc-dim);
  text-decoration: none;
  transition: color 0.25s;
}

.page-disclaimer .breadcrumb a:hover {
  color: var(--disc-accent);
}

.page-disclaimer .breadcrumb__sep {
  color: rgba(245, 240, 230, 0.35);
  margin: 0 0.55rem;
}

/* ----- 首屏标题区 ----- */
.page-disclaimer .disc-hero {
  position: relative;
  margin-bottom: 2.25rem;
}

.page-disclaimer .disc-hero__inner {
  position: relative;
  z-index: 2;
  padding: 1.5rem 0 1rem;
}

.page-disclaimer .disc-hero__inner .section__label {
  color: var(--disc-accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.page-disclaimer .disc-hero__inner h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 4.5rem);
  line-height: 0.95;
  letter-spacing: 0.04em;
  color: var(--text-strong);
  margin: 0 0 0.5rem;
  display: inline-block;
  position: relative;
  text-shadow: 0.06em 0.06em 0 rgba(123, 47, 255, 0.5);
}

.page-disclaimer .disc-hero__inner h1::after {
  content: "";
  display: block;
  height: 5px;
  width: 36%;
  min-width: 4.5rem;
  margin-top: 0.6rem;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--disc-accent) 0%, var(--disc-violet) 100%);
}

.page-disclaimer .disc-hero__lead {
  max-width: 38rem;
  margin: 0.8rem 0 0;
  color: var(--disc-dim);
  font-size: 1.05rem;
  line-height: 1.9;
}

.page-disclaimer .disc-hero__img {
  display: block;
  width: 100%;
  height: 210px;
  object-fit: cover;
  object-position: center 60%;
  border-radius: var(--radius);
  border: 1px solid rgba(0, 255, 163, 0.15);
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.35);
}

/* ----- 重要提示警示框 ----- */
.page-disclaimer .disc-alert {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  background: var(--disc-red-soft);
  border: 1px solid rgba(255, 92, 92, 0.4);
  border-left-width: 5px;
  border-left-color: var(--disc-danger);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  margin: 0 0 3rem;
}

.page-disclaimer .disc-alert__icon {
  flex: 0 0 auto;
  width: 1.7rem;
  height: 1.7rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--disc-danger);
  color: #fff;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1;
}

.page-disclaimer .disc-alert p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-disclaimer .disc-alert a {
  color: var(--disc-accent);
}

.page-disclaimer .disc-alert strong {
  color: #fff;
}

/* ----- 主体布局 ----- */
.page-disclaimer .disc-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

/* ----- 左侧目录 ----- */
.page-disclaimer .disc-toc {
  position: relative;
  background: rgba(17, 34, 64, 0.65);
  border: 1px solid var(--disc-line);
  border-radius: var(--radius);
  padding: 1.3rem 1.1rem 1.4rem 1.35rem;
  overflow: hidden;
}

.page-disclaimer .disc-toc::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--disc-accent) 0%, var(--disc-violet) 100%);
}

.page-disclaimer .disc-toc__title {
  margin: 0 0 0.9rem;
  padding-left: 0.8rem;
  color: var(--disc-dim);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

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

.page-disclaimer .disc-toc__item {
  margin: 0.15rem 0;
}

.page-disclaimer .disc-toc__item .toc__link {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.55rem 0.75rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.02rem;
  border-radius: 8px;
  border-left: 3px solid transparent;
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}

.page-disclaimer .disc-toc__item .toc__link:hover {
  color: #fff;
  background: var(--disc-green-soft);
}

.page-disclaimer .disc-toc__item .toc__link--active {
  border-left-color: var(--disc-accent);
  background: var(--disc-green-soft);
  color: var(--disc-accent);
}

.page-disclaimer .disc-toc__num {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--disc-violet);
  line-height: 1;
  min-width: 2rem;
}

.page-disclaimer .disc-toc__item .toc__link--active .disc-toc__num,
.page-disclaimer .disc-toc__item .toc__link:hover .disc-toc__num {
  color: var(--disc-accent);
}

.page-disclaimer .disc-toc__card {
  margin: 1.4rem 0 0 0.85rem;
  padding: 1rem 1.1rem;
  background: rgba(10, 25, 47, 0.55);
  border: 1px solid rgba(255, 215, 0, 0.2);
  border-radius: var(--radius);
}

.page-disclaimer .disc-toc__card-title {
  margin: 0 0 0.25rem;
  color: var(--disc-gold);
  font-size: 1.02rem;
  font-weight: 700;
}

.page-disclaimer .disc-toc__card-text {
  margin: 0 0 0.8rem;
  color: var(--disc-dim);
  font-size: 0.86rem;
  line-height: 1.7;
}

/* ----- 正文区域 ----- */
.page-disclaimer .disc-content {
  min-width: 0;
}

.page-disclaimer .disc-section {
  padding: 0.5rem 0 2.4rem;
  border-bottom: 1px solid var(--disc-line);
  margin-bottom: 1.8rem;
}

.page-disclaimer .disc-section:last-child {
  margin-bottom: 0;
  border-bottom: none;
}

.page-disclaimer .disc-section__head {
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
  margin-bottom: 1.1rem;
  position: relative;
  padding-bottom: 1.1rem;
}

.page-disclaimer .disc-section__num {
  font-family: var(--font-display);
  font-size: 3.2rem;
  line-height: 0.75;
  letter-spacing: 0.02em;
  color: var(--disc-violet);
  -webkit-text-stroke: 1px rgba(123, 47, 255, 0.25);
  display: inline-block;
}

.page-disclaimer .disc-section__head h2 {
  margin: 0.1rem 0 0;
  font-family: var(--font-sans);
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--text-strong);
  line-height: 1.2;
}

.page-disclaimer .disc-section__head h2::after {
  content: "";
  display: block;
  width: 3.6rem;
  height: 4px;
  margin-top: 0.7rem;
  border-radius: 4px;
  background: var(--disc-accent);
  box-shadow: 0 0 14px rgba(0, 255, 163, 0.5);
}

.page-disclaimer .disc-section__body p {
  margin: 0 0 1.1rem;
  color: rgba(245, 240, 230, 0.9);
  font-size: 1rem;
  line-height: 1.95;
  max-width: 70ch;
}

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

.page-disclaimer .disc-section__body a {
  color: var(--disc-accent);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  text-decoration-color: rgba(0, 255, 163, 0.4);
}

.page-disclaimer .disc-section__body a:hover {
  color: #fff;
  text-decoration-color: #fff;
}

/* ----- 页脚斜切面装饰条 ----- */
.page-disclaimer .disc-slice {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-top: 4rem;
  pointer-events: none;
}

.page-disclaimer .disc-slice span {
  display: block;
  height: 0.5rem;
  border-radius: 4px;
  transform: skewX(-40deg);
  background: linear-gradient(90deg, var(--disc-accent) 0%, transparent 68%, rgba(123, 47, 255, 0.6) 100%);
}

.page-disclaimer .disc-slice span:nth-child(2) {
  width: 72%;
  margin-left: 10%;
  background: linear-gradient(90deg, var(--disc-violet) 0%, transparent 70%, rgba(255, 215, 0, 0.45) 100%);
}

.page-disclaimer .disc-slice span:nth-child(3) {
  width: 46%;
  margin-left: 22%;
  background: linear-gradient(90deg, var(--disc-gold) 0%, transparent 72%, rgba(0, 255, 163, 0.35) 100%);
}

/* ===== 桌面端（≥960px） ===== */
@media screen and (min-width: 960px) {
  .page-disclaimer .disc-shell {
    padding-top: 3rem;
  }

  .page-disclaimer .disc-hero {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    align-items: end;
    gap: 2.75rem;
  }

  .page-disclaimer .disc-hero__inner {
    padding: 0;
  }

  .page-disclaimer .disc-hero__img {
    height: 360px;
  }

  .page-disclaimer .disc-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 2.75rem;
    align-items: start;
  }

  .page-disclaimer .disc-toc {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    padding: 1.5rem 1.3rem 1.6rem 1.6rem;
  }

  .page-disclaimer .disc-section__head {
    padding-bottom: 1.25rem;
  }

  .page-disclaimer .disc-section__num {
    font-size: 4.2rem;
  }

  .page-disclaimer .disc-section__head h2 {
    font-size: 1.75rem;
  }
}