/* ==========================================
   使用说明页 · 页面专属样式
   作用域：.page-disclaimer
   ========================================== */
.page-disclaimer {
  --disc-shadow: 0 30px 80px rgba(10, 30, 60, .2);
  --disc-line: rgba(184, 150, 62, .45);
  position: relative;
  min-height: 100vh;
  background:
    radial-gradient(640px 360px at 88% 6%, rgba(212, 175, 55, .12), transparent 70%),
    linear-gradient(115deg, rgba(30, 58, 95, .55) 0 42%, transparent 42%),
    var(--v-ink);
  color: var(--v-ink);
  overflow-x: hidden;
}

.page-disclaimer .disc-wrap {
  padding: clamp(2rem, 4vw, 3.5rem) 0 clamp(4rem, 7vw, 6rem);
}

/* ---- 顶部条 ---- */
.page-disclaimer .disc-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid rgba(212, 175, 55, .35);
  padding-bottom: .75rem;
  margin-bottom: 1.5rem;
}

.page-disclaimer .disc-topline .breadcrumb-link {
  color: rgba(255, 255, 255, .78);
}

.page-disclaimer .disc-topline .breadcrumb-current {
  color: var(--v-gold);
}

.page-disclaimer .disc-topline .breadcrumb-item + .breadcrumb-item::before {
  color: rgba(255, 255, 255, .45);
}

.page-disclaimer .disc-folio {
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--v-gold);
  white-space: nowrap;
}

/* ---- 纸面主体 ---- */
.page-disclaimer .disc-paper {
  position: relative;
  background: linear-gradient(180deg, var(--v-white) 0%, var(--v-ivory) 100%);
  border-radius: 3px;
  border-top: 6px solid var(--v-gold);
  box-shadow: var(--disc-shadow);
  padding: clamp(1.75rem, 4vw, 4rem);
}

.page-disclaimer .disc-head {
  display: grid;
  gap: 1.5rem;
  max-width: 76ch;
}

.page-disclaimer .disc-head .kicker {
  display: inline-block;
  margin: 0;
  color: var(--v-gold-dark);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
}

.page-disclaimer .disc-title-row {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.page-disclaimer .disc-head h1 {
  margin: 0;
  font-family: var(--v-font-display);
  font-weight: 400;
  font-size: clamp(2.8rem, 8vw, 6.2rem);
  line-height: .95;
  letter-spacing: -.02em;
  color: var(--v-ink);
}

.page-disclaimer .disc-stamp {
  display: inline-grid;
  place-items: center;
  padding: .28rem .62rem;
  border: 2px solid var(--v-red);
  border-radius: 2px;
  color: var(--v-red);
  font-size: .66rem;
  font-weight: 600;
  letter-spacing: .18em;
  transform: rotate(6deg) translateY(.6rem);
}

.page-disclaimer .disc-lede {
  margin: 0;
  max-width: 68ch;
  font-size: 1.04rem;
  line-height: 1.95;
  color: #21324d;
}

.page-disclaimer .disc-notice {
  position: relative;
  margin: .25rem 0 0;
  padding: 1.2rem 1.5rem 1.2rem 2.6rem;
  background: var(--v-white);
  border: 1px solid var(--disc-line);
  border-left: 6px solid var(--v-gold);
  border-radius: 2px;
  box-shadow: 0 8px 24px rgba(10, 30, 60, .06);
  font-size: .93rem;
  line-height: 1.8;
}

.page-disclaimer .disc-notice p {
  margin: 0;
}

.page-disclaimer .disc-notice::before {
  content: "!";
  position: absolute;
  left: 1rem;
  top: 1.35rem;
  display: grid;
  place-items: center;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 50%;
  background: var(--v-gold);
  color: var(--v-ink);
  font-size: .82rem;
  font-weight: 700;
}

/* ---- 正文栅格 ---- */
.page-disclaimer .disc-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

.page-disclaimer .disc-index {
  padding-left: 1.25rem;
  border-left: 2px solid var(--v-gold);
}

.page-disclaimer .disc-index .marginal-label,
.page-disclaimer .disc-contact-links .marginal-label {
  margin: 0 0 .75rem;
}

.page-disclaimer .disc-toc {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: .45rem;
}

.page-disclaimer .disc-toc a {
  color: var(--v-ink);
  font-size: .9rem;
  text-decoration-color: rgba(184, 150, 62, .55);
  text-underline-offset: 3px;
}

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

.page-disclaimer .disc-toc a:focus-visible,
.page-disclaimer .disc-summary:focus-visible {
  outline: 2px solid var(--v-gold-dark);
  outline-offset: 2px;
  border-radius: 2px;
}

.page-disclaimer .disc-index .marginal-note {
  margin: 0;
  font-size: .78rem;
  line-height: 1.7;
  color: rgba(10, 30, 60, .68);
}

/* ---- 手风琴 ---- */
.page-disclaimer .disc-accordion {
  display: grid;
  gap: 1.1rem;
}

.page-disclaimer .disc-item {
  background: var(--v-white);
  border: 1px solid rgba(10, 30, 60, .08);
  border-left: 5px solid var(--v-gold);
  border-radius: 2px;
  box-shadow: 0 6px 18px rgba(10, 30, 60, .05);
  transition: box-shadow .25s ease, border-left-color .25s ease;
}

.page-disclaimer .disc-item[open] {
  border-left-color: var(--v-gold-dark);
  box-shadow: 0 12px 28px rgba(10, 30, 60, .08);
}

.page-disclaimer .disc-summary {
  display: flex;
  align-items: baseline;
  gap: .9rem;
  padding: 1.1rem 1.4rem;
  list-style: none;
  cursor: pointer;
  font-family: var(--v-font-display);
  font-size: 1.16rem;
  letter-spacing: .02em;
  color: var(--v-ink);
}

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

.page-disclaimer .disc-summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--v-font-body);
  color: var(--v-gold-dark);
  font-size: 1.15rem;
  line-height: 1;
  transition: transform .2s ease;
}

.page-disclaimer .disc-item[open] .disc-summary::after {
  transform: rotate(45deg);
}

.page-disclaimer .disc-num {
  font-family: var(--v-font-body);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--v-gold-dark);
}

.page-disclaimer .disc-content {
  padding: .2rem clamp(1.1rem, 3vw, 1.6rem) 1.4rem clamp(1.4rem, 4vw, 3.9rem);
  font-size: .95rem;
  line-height: 1.85;
  color: #253450;
}

.page-disclaimer .disc-content p {
  margin: 0 0 .85rem;
}

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

.page-disclaimer .disc-content ul {
  margin: 0 0 .4rem;
  padding-left: 1.15rem;
}

.page-disclaimer .disc-content li {
  margin-bottom: .5rem;
}

.page-disclaimer .disc-gold-text {
  color: var(--v-gold-dark);
  font-weight: 600;
}

/* ---- 联系区 ---- */
.page-disclaimer .disc-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 3rem;
  padding: clamp(1.5rem, 3vw, 2rem);
  background: var(--v-ink);
  border: 1px solid rgba(212, 175, 55, .35);
  border-radius: 3px;
  color: var(--v-white);
}

.page-disclaimer .disc-contact-main p {
  color: rgba(255, 255, 255, .82);
  line-height: 1.8;
}

.page-disclaimer .disc-contact h2 {
  margin: 0 0 .75rem;
  font-family: var(--v-font-display);
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--v-gold);
}

.page-disclaimer .disc-contact-list {
  display: grid;
  gap: .7rem;
  margin: 1.25rem 0 1rem;
}

.page-disclaimer .disc-contact-list > div {
  display: grid;
  grid-template-columns: 4.5em 1fr;
  gap: 1rem;
  padding-bottom: .6rem;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.page-disclaimer .disc-contact-list dt {
  color: var(--v-gold);
  font-size: .78rem;
  letter-spacing: .1em;
  font-weight: 600;
}

.page-disclaimer .disc-contact-list dd {
  margin: 0;
  font-size: .95rem;
  color: rgba(255, 255, 255, .92);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-disclaimer .disc-contact-note {
  margin: 0;
  font-size: .8rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, .6);
}

.page-disclaimer .disc-contact-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .8rem;
  justify-content: flex-end;
}

/* ---- 返回顶部 ---- */
.page-disclaimer .disc-backtop {
  display: flex;
  justify-content: flex-end;
  margin-top: 1.5rem;
}

/* ---- 底部视觉 ---- */
.page-disclaimer .disc-figure {
  margin: 1.25rem 0 0;
  border-radius: 3px;
  overflow: hidden;
}

.page-disclaimer .disc-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  min-height: 160px;
  object-fit: cover;
  filter: saturate(.85) contrast(1.04);
}

.page-disclaimer .disc-figure figcaption {
  margin-top: .6rem;
  padding-left: 2rem;
  border-left: 3px solid var(--v-gold);
  font-size: .8rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, .7);
}

/* ---- 响应式 ----
   移动端优先，桌面端扩展 */
@media (min-width: 640px) {
  .page-disclaimer .disc-contact-links {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .disc-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 3rem;
  }

  .page-disclaimer .disc-head h1 {
    font-size: 5.6rem;
  }

  .page-disclaimer .disc-contact {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-disclaimer .disc-contact-links {
    flex-direction: column;
    min-width: 220px;
  }
}

@media (min-width: 1280px) {
  .page-disclaimer .disc-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 4rem;
  }

  .page-disclaimer .disc-head h1 {
    font-size: 6rem;
  }
}