/* ===== 使用说明页专属样式 ===== */
.page-disclaimer {
  position: relative;
  background-color: var(--c-paper);
  background-image: linear-gradient(115deg, transparent 0%, transparent 40%, rgba(45, 111, 179, 0.08) 40.4%, rgba(45, 111, 179, 0.08) 41.6%, transparent 42%);
  color: var(--c-ink);
  padding-bottom: 3.5rem;
}

.page-disclaimer .container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* —— 面包屑 —— */
.page-disclaimer .breadcrumb {
  margin-top: 1.25rem;
  font-size: 0.83rem;
  color: var(--c-slate);
}

.page-disclaimer .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .breadcrumb__link {
  color: var(--c-blue);
  text-decoration: none;
  font-weight: 500;
}

.page-disclaimer .breadcrumb__link:hover,
.page-disclaimer .breadcrumb__link:focus-visible {
  color: var(--c-orange);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-disclaimer .breadcrumb__sep,
.page-disclaimer .breadcrumb__current {
  color: var(--c-slate);
}

.page-disclaimer .breadcrumb__current {
  font-weight: 600;
}

/* —— 页头 —— */
.page-disclaimer .page-head {
  position: relative;
  margin-top: 1.5rem;
  padding-top: 0.25rem;
}

.page-disclaimer .page-head::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 18px;
  height: 68px;
  background: repeating-linear-gradient(135deg, var(--c-orange) 0 6px, transparent 6px 12px);
}

.page-disclaimer .section-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-orange);
  text-transform: uppercase;
}

.page-disclaimer .page-head h1 {
  font-family: var(--font-headline);
  font-size: 1.9rem;
  line-height: 1.15;
  color: var(--c-deep);
  max-width: 12em;
  margin: 0.6rem 0 0.65rem;
  letter-spacing: 0.01em;
}

.page-disclaimer .page-head__lead {
  max-width: 46em;
  color: var(--c-slate);
  line-height: 1.8;
  font-size: 0.95rem;
  margin: 0;
}

.page-disclaimer .page-head::after {
  content: "";
  display: block;
  width: 92px;
  height: 4px;
  margin-top: 1.1rem;
  background: linear-gradient(90deg, var(--c-orange) 0 62%, var(--c-deep) 62% 100%);
}

/* —— 顶部版权安全横幅 —— */
.page-disclaimer .notice-banner {
  position: relative;
  margin: 1.5rem auto 0;
  background: var(--c-mid);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
}

.page-disclaimer .notice-banner__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  margin: 0;
}

.page-disclaimer .notice-banner__caption {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(11, 31, 58, 0.84);
  color: #fff;
  padding: 0.55rem 0.8rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-left: 3px solid var(--c-orange);
  max-width: calc(100% - 2rem);
}

.page-disclaimer .notice-banner__caption .tag {
  margin: 0;
  flex: 0 0 auto;
}

/* —— 条款目录 —— */
.page-disclaimer .terms-index {
  background: var(--c-deep);
  color: var(--c-paper);
  margin: 1.6rem auto 0;
  padding: 1.25rem 1.25rem 1.4rem;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-disclaimer .terms-index__heading {
  font-family: var(--font-headline);
  font-size: 0.95rem;
  color: var(--c-gold);
  letter-spacing: 0.12em;
  margin: 0 0 0.7rem;
  padding-left: 0.2rem;
}

.page-disclaimer .terms-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.3rem 1rem;
}

.page-disclaimer .terms-index__list a {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  color: var(--c-paper);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  padding: 0.4rem 0.15rem;
  border-bottom: 1px solid rgba(184, 196, 208, 0.18);
}

.page-disclaimer .terms-index__list a span {
  color: var(--c-orange);
  font-weight: 700;
  min-width: 1.5em;
}

.page-disclaimer .terms-index__list a:hover,
.page-disclaimer .terms-index__list a:focus-visible {
  color: var(--c-orange);
}

/* —— 条款区 —— */
.page-disclaimer .terms {
  margin-top: 1.6rem;
}

.page-disclaimer .term {
  position: relative;
  background: var(--c-paper);
  border: 1px solid rgba(184, 196, 208, 0.6);
  border-left: 4px solid var(--c-orange);
  padding: 1.4rem 1.2rem 1.6rem;
  margin-bottom: 1.3rem;
  box-shadow: 0 12px 24px -14px rgba(11, 31, 58, 0.22);
  transition: box-shadow 0.2s ease;
}

.page-disclaimer .term::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  width: 88px;
  height: 18px;
  background: var(--c-deep);
  clip-path: polygon(0 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
}

.page-disclaimer .term:hover {
  box-shadow: var(--shadow-hover);
}

.page-disclaimer .term > summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  padding: 0;
}

.page-disclaimer .term > summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .term > summary::after {
  content: "−";
  margin-left: auto;
  color: var(--c-silver);
  font-family: var(--font-mono);
  font-size: 1.2rem;
  line-height: 1;
  flex: 0 0 auto;
}

.page-disclaimer .term:not([open]) > summary::after {
  content: "+";
  color: var(--c-orange);
}

.page-disclaimer .term__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.2;
  background: linear-gradient(120deg, var(--c-orange), #ff8b5c);
  color: var(--c-deep);
  padding: 0.45rem 0.7rem 0.45rem 0.6rem;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 100%, 0 100%);
  display: inline-block;
  flex: 0 0 auto;
}

.page-disclaimer .term__heading {
  font-family: var(--font-headline);
  font-size: 1.25rem;
  color: var(--c-deep);
  line-height: 1.2;
  margin: 0;
}

.page-disclaimer .term__body {
  margin-top: 1rem;
  padding-left: 0.1rem;
  line-height: 1.75;
  color: var(--c-ink);
}

.page-disclaimer .term__lead {
  font-weight: 500;
  color: var(--c-slate);
  margin: 0 0 0.6rem;
}

.page-disclaimer .term__list {
  list-style: none;
  margin: 0.8rem 0;
  padding: 0;
}

.page-disclaimer .term__list li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.9rem;
  line-height: 1.75;
  color: var(--c-ink);
  border-bottom: 1px dashed rgba(184, 196, 208, 0.4);
}

.page-disclaimer .term__list li:last-child {
  border-bottom: 0;
}

.page-disclaimer .term__list li::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 1.05rem;
  width: 0.6rem;
  height: 0.6rem;
  background: var(--c-orange);
  transform: rotate(45deg);
}

.page-disclaimer .term__list--rule li {
  padding-left: 2rem;
}

.page-disclaimer .term__list--rule li::before {
  display: none;
}

.page-disclaimer .term__noicon {
  position: absolute;
  left: 0;
  top: 0.78rem;
  width: 0.95rem;
  height: 0.95rem;
  color: var(--c-red);
}

.page-disclaimer .term__noicon svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-disclaimer .term__list--contact li {
  font-weight: 600;
  word-break: break-word;
}

.page-disclaimer .term__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.3rem;
}

.page-disclaimer .btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.92rem;
  padding: 0.6rem 1.1rem;
  background: var(--c-orange);
  color: var(--c-deep);
  text-decoration: none;
  border: 2px solid var(--c-orange);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: background 0.2s ease, color 0.2s ease;
}

.page-disclaimer .btn:hover,
.page-disclaimer .btn:focus-visible {
  background: var(--c-deep);
  color: var(--c-paper);
}

.page-disclaimer .btn--outline {
  background: transparent;
  color: var(--c-orange);
}

.page-disclaimer .btn--outline:hover,
.page-disclaimer .btn--outline:focus-visible {
  background: var(--c-orange);
  color: var(--c-deep);
}

/* —— 相邻信息页 —— */
.page-disclaimer .related {
  margin-top: 2.2rem;
  background: var(--c-deep);
  color: var(--c-paper);
  padding: 1.4rem 1.2rem 1.5rem;
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
}

.page-disclaimer .related__title {
  font-family: var(--font-headline);
  font-size: 1.05rem;
  color: var(--c-gold);
  margin: 0 0 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-disclaimer .related__title::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  background: var(--c-orange);
  transform: rotate(45deg);
  flex: 0 0 auto;
}

.page-disclaimer .related__grid {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: 1fr;
}

.page-disclaimer .related__link {
  display: block;
  color: var(--c-paper);
  text-decoration: none;
  padding: 0.7rem 0.9rem;
  background: rgba(255, 255, 255, 0.06);
  border-left: 3px solid var(--c-orange);
  font-size: 0.95rem;
  transition: background 0.2s ease;
}

.page-disclaimer .related__link:hover,
.page-disclaimer .related__link:focus-visible {
  background: rgba(255, 255, 255, 0.14);
  color: var(--c-gold);
}

/* —— 键盘焦点 —— */
.page-disclaimer a:focus-visible,
.page-disclaimer .term:focus-within {
  outline: 3px solid var(--c-orange);
  outline-offset: 3px;
}

/* —— 桌面端增强 —— */
@media (min-width: 760px) {
  .page-disclaimer .page-head {
    padding-top: 0.5rem;
  }

  .page-disclaimer .page-head h1 {
    font-size: 2.7rem;
  }

  .page-disclaimer .page-head__lead {
    font-size: 1rem;
  }

  .page-disclaimer .notice-banner__caption {
    left: 1.5rem;
    bottom: 1.5rem;
    font-size: 0.95rem;
  }

  .page-disclaimer .terms-index__list {
    grid-template-columns: repeat(5, 1fr);
    gap: 0.75rem;
  }

  .page-disclaimer .terms-index__list a {
    border-bottom: 0;
    border-left: 3px solid var(--c-orange);
    padding: 0.65rem 0.85rem;
    background: rgba(255, 255, 255, 0.06);
    display: block;
  }

  .page-disclaimer .terms-index__list a span {
    display: block;
    margin-bottom: 0.25rem;
  }

  .page-disclaimer .term {
    display: grid;
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 0 1.7rem;
    padding: 1.9rem 2rem;
  }

  .page-disclaimer .term > summary {
    display: block;
    grid-column: 1;
    align-self: start;
    position: sticky;
    top: 8rem;
  }

  .page-disclaimer .term > summary::after {
    content: "";
    display: none;
  }

  .page-disclaimer .term:not([open]) > summary::after {
    display: none;
  }

  .page-disclaimer .term__num {
    font-size: 1.8rem;
    padding: 0.75rem 1rem 0.75rem 0.9rem;
    margin-bottom: 0.7rem;
  }

  .page-disclaimer .term__heading {
    font-size: 1rem;
    line-height: 1.35;
  }

  .page-disclaimer .term__body {
    grid-column: 2;
    min-width: 0;
    margin-top: 0;
  }

  .page-disclaimer .related {
    padding: 1.8rem 1.6rem;
  }

  .page-disclaimer .related__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

  .page-disclaimer .related__link {
    border-left: 0;
    border-top: 3px solid var(--c-orange);
  }
}