/* ===== 使用说明页 · 专属样式（作用域：.page-disclaimer） ===== */

.page-disclaimer {
  --dc-clause-pad: clamp(1.6rem, 4vw, 2.8rem);
  --dc-link: rgba(57, 255, 136, .08);
  position: relative;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .disclaimer-hero {
  position: relative;
  padding: clamp(1.25rem, 4vw, 2.5rem) 0 clamp(2rem, 5vw, 3.25rem);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-disclaimer .disclaimer-hero::before {
  content: "";
  position: absolute;
  inset: -40% -12% auto -12%;
  height: 460px;
  background:
    radial-gradient(58% 70% at 16% 0%, rgba(57, 255, 136, .13), transparent 70%),
    radial-gradient(48% 60% at 84% 8%, rgba(255, 122, 47, .10), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-disclaimer .disclaimer-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-disclaimer .disclaimer-hero__copy h1,
.page-disclaimer .disclaimer-hero h1 {
  margin: .55rem 0 0;
  font-size: clamp(2rem, 7vw, 3.6rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--mist);
}

.page-disclaimer .disclaimer-hero__lead {
  margin: 1rem 0 0;
  max-width: 42ch;
  font-size: clamp(.98rem, 2.4vw, 1.06rem);
  line-height: 1.8;
  color: var(--steel);
}

.page-disclaimer .disclaimer-hero__marks {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem .7rem;
  margin: 1.35rem 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .disclaimer-hero__marks li {
  display: inline-flex;
  align-items: baseline;
  gap: .45rem;
  padding: .42rem .85rem;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: rgba(16, 32, 58, .55);
  font-size: .82rem;
  line-height: 1.4;
  color: var(--steel);
}

.page-disclaimer .disclaimer-hero__marks .mono {
  color: var(--lime);
  font-weight: 700;
}

.page-disclaimer .disclaimer-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 24px 60px -40px rgba(0, 0, 0, .9);
}

.page-disclaimer .disclaimer-hero__media .media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 主体骨架 ---------- */
.page-disclaimer .disclaimer-body {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  padding: clamp(1.5rem, 4vw, 3rem) 0 clamp(3rem, 7vw, 5rem);
}

/* ---------- 条款目录（移动端折叠胶囊） ---------- */
.page-disclaimer .disclaimer-toc {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(16, 32, 58, .72);
  overflow: hidden;
}

.page-disclaimer .disclaimer-toc__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  padding: .9rem 1.05rem;
  font-size: .92rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--mist);
  cursor: pointer;
  list-style: none;
}

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

.page-disclaimer .disclaimer-toc__summary::after {
  content: "▾";
  font-family: var(--mono);
  font-size: .9rem;
  color: var(--lime);
  transition: transform .2s var(--ease);
}

.page-disclaimer .disclaimer-toc[open] .disclaimer-toc__summary::after {
  transform: rotate(180deg);
}

.page-disclaimer .disclaimer-toc__nav {
  display: flex;
  flex-direction: column;
  gap: .12rem;
  padding: .2rem .5rem 1rem;
}

.page-disclaimer .disclaimer-toc__link {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  padding: .55rem .7rem;
  border-left: 2px solid transparent;
  border-radius: var(--r-sm);
  font-size: .88rem;
  line-height: 1.5;
  color: var(--steel);
  text-decoration: none;
  transition: color .2s var(--ease), background-color .2s var(--ease), border-color .2s var(--ease);
}

.page-disclaimer .disclaimer-toc__idx {
  font-size: .74rem;
  color: var(--orange);
  letter-spacing: .06em;
}

.page-disclaimer .disclaimer-toc__link:hover {
  color: var(--mist);
  background: rgba(57, 255, 136, .06);
}

.page-disclaimer .disclaimer-toc__link[aria-current="true"] {
  color: var(--lime);
  border-left-color: var(--lime);
  background: var(--dc-link);
}

/* ---------- 条款主体 ---------- */
.page-disclaimer .disclaimer-clauses {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.page-disclaimer .clause {
  display: grid;
  gap: .5rem;
  padding: var(--dc-clause-pad) 0;
  border-top: 1px solid var(--line);
  min-width: 0;
}

.page-disclaimer .clause:first-child {
  border-top-color: var(--line-lime);
}

.page-disclaimer .clause__idx {
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-disclaimer .clause__title {
  margin: 0 0 .35rem;
  font-size: clamp(1.28rem, 3.6vw, 1.72rem);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-disclaimer .clause__body {
  max-width: 46ch;
}

.page-disclaimer .clause--wide .clause__body {
  max-width: 62ch;
}

.page-disclaimer .clause__body p {
  margin: 0;
  font-size: clamp(.95rem, 2.3vw, 1rem);
  line-height: 1.85;
  color: var(--steel);
}

.page-disclaimer .clause__body p + p,
.page-disclaimer .clause__body p + ul,
.page-disclaimer .clause__body ul + p,
.page-disclaimer .clause__body ul + div,
.page-disclaimer .clause__body div + p {
  margin-top: 1rem;
}

.page-disclaimer .clause__links {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.35rem !important;
}

/* ---------- 数据合作清单 ---------- */
.page-disclaimer .factlist {
  display: grid;
  gap: 0;
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-disclaimer .factlist__item {
  display: grid;
  grid-template-columns: 3.6rem minmax(0, 1fr);
  align-items: baseline;
  gap: .2rem .9rem;
  padding: .75rem .25rem;
  border-bottom: 1px solid var(--line-soft);
}

.page-disclaimer .factlist__k {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--lime);
  letter-spacing: -.01em;
}

.page-disclaimer .factlist__v {
  font-size: .92rem;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 可用场景列表 ---------- */
.page-disclaimer .uselist {
  display: grid;
  gap: .7rem;
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .uselist__item {
  position: relative;
  padding: .85rem .95rem .85rem 2.4rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(16, 32, 58, .5);
  font-size: .92rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-disclaimer .uselist__item::before {
  content: "";
  position: absolute;
  left: 1rem;
  top: 1.25rem;
  width: .5rem;
  height: .5rem;
  border-radius: 50%;
  background: var(--orange);
}

/* ---------- 联系方式 ---------- */
.page-disclaimer .disclaimer-contact {
  display: grid;
  gap: 0;
  margin-top: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: rgba(16, 32, 58, .6);
}

.page-disclaimer .disclaimer-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .35rem .9rem;
  padding: .95rem 1.05rem;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-disclaimer .disclaimer-contact__row .contact__key {
  flex: 0 0 auto;
  min-width: 4.6rem;
  font-size: .82rem;
  letter-spacing: .06em;
  color: var(--steel);
}

.page-disclaimer .disclaimer-contact__row .contact__val {
  flex: 1 1 12rem;
  font-size: .95rem;
  line-height: 1.6;
  color: var(--mist);
  word-break: break-word;
}

.page-disclaimer .disclaimer-contact__row .copybtn {
  flex: 0 0 auto;
  padding: .38rem .8rem;
  border: 1px solid var(--line-lime);
  border-radius: var(--pill);
  background: transparent;
  color: var(--lime);
  font-size: .78rem;
  font-family: var(--sans);
  cursor: pointer;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}

.page-disclaimer .disclaimer-contact__row .copybtn:hover {
  background: var(--lime);
  color: var(--ink);
}

/* ---------- 平板 ---------- */
@media (min-width: 768px) {
  .page-disclaimer .disclaimer-body {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-disclaimer .clause {
    grid-template-columns: 4.2rem minmax(0, 1fr);
    gap: 0 1.5rem;
    align-items: start;
  }

  .page-disclaimer .clause__idx {
    padding-top: .2rem;
  }

  .page-disclaimer .factlist__item {
    grid-template-columns: 4.4rem minmax(0, 1fr);
    padding: .8rem .35rem;
  }

  .page-disclaimer .uselist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .uselist__item:last-child {
    grid-column: 1 / -1;
  }
}

/* ---------- 桌面：常驻目录 + 宽窄章节交替 ---------- */
@media (min-width: 1024px) {
  .page-disclaimer .disclaimer-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: end;
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-disclaimer .disclaimer-body {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: clamp(2rem, 4.5vw, 4rem);
    align-items: start;
  }

  .page-disclaimer .disclaimer-toc {
    position: sticky;
    top: calc(var(--bbar) + 1.25rem);
    padding: .9rem .55rem;
    background: rgba(16, 32, 58, .82);
  }

  .page-disclaimer .disclaimer-toc__summary {
    display: none;
  }

  .page-disclaimer .disclaimer-toc > .disclaimer-toc__nav {
    display: flex;
    padding: 0;
  }

  .page-disclaimer .clause {
    grid-template-columns: 5rem minmax(0, 1fr);
    gap: 0 2rem;
    padding: clamp(2.2rem, 4vw, 3.4rem) 0;
  }

  .page-disclaimer .clause--wide .clause__body {
    max-width: 66ch;
  }

  .page-disclaimer .clause__idx {
    font-size: 1.05rem;
  }
}

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

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disclaimer-toc__summary::after,
  .page-disclaimer .disclaimer-toc__link,
  .page-disclaimer .disclaimer-contact__row .copybtn {
    transition: none;
  }
}