/* ===== 用户协议页 ===== */
.page-disclaimer {
  --disc-text: #D3E0DB;
  --disc-hair: rgba(217, 205, 180, 0.22);
  display: block;
}

/* --- 首屏 --- */
.page-disclaimer .disc-hero {
  padding: clamp(24px, 5vw, 44px) 0 clamp(20px, 4vw, 32px);
  background:
    radial-gradient(80% 140% at 4% -20%, rgba(56, 232, 200, 0.14), transparent 60%),
    radial-gradient(60% 100% at 100% 0%, rgba(255, 138, 61, 0.09), transparent 58%);
}

.page-disclaimer .disc-hero .crumbs {
  margin: 0;
}

.page-disclaimer .disc-hero .eyebrow {
  margin: 18px 0 0;
}

.page-disclaimer .disc-hero h1 {
  margin: 12px 0 0;
  max-width: 660px;
  font-size: clamp(26px, 6vw, 40px);
  line-height: 1.22;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-disclaimer .disc-hero .lede {
  max-width: 620px;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--disc-text);
}

/* --- 顶部通栏视觉 --- */
.page-disclaimer .disc-banner {
  position: relative;
  display: block;
  margin: 0;
  height: clamp(190px, 32vw, 360px);
  overflow: hidden;
  background: var(--ink-3);
  line-height: 0;
}

.page-disclaimer .disc-banner img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  filter: saturate(0.82) contrast(1.04) brightness(0.92);
}

.page-disclaimer .disc-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 22, 20, 0.34), rgba(7, 22, 20, 0.74));
  pointer-events: none;
}

/* --- 主布局 --- */
.page-disclaimer .disc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: clamp(28px, 5vw, 52px);
  padding-bottom: clamp(36px, 6vw, 72px);
}

/* --- 条款索引 --- */
.page-disclaimer .disc-nav {
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 14px;
}

.page-disclaimer .disc-nav__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-disclaimer .disc-nav__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .disc-nav__list::-webkit-scrollbar {
  display: none;
}

.page-disclaimer .disc-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 13px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-disclaimer .disc-nav__num {
  font-size: 11px;
  color: var(--cyan);
  opacity: 0.55;
  transition: opacity var(--dur) var(--ease);
}

.page-disclaimer .disc-nav__link:hover {
  color: var(--paper);
  background: var(--glass);
}

.page-disclaimer .disc-nav__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-disclaimer .disc-nav__link.is-active {
  color: var(--paper);
  background: var(--glass);
  border-color: var(--line-cyan);
}

.page-disclaimer .disc-nav__link.is-active .disc-nav__num {
  opacity: 1;
}

/* --- 条款卡片 --- */
.page-disclaimer .disc-clauses {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.page-disclaimer .clause {
  position: relative;
  background: var(--ink-2);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-disclaimer .clause:hover {
  border-color: var(--line);
}

.page-disclaimer .clause[open] {
  border-color: var(--line);
  background:
    linear-gradient(180deg, rgba(56, 232, 200, 0.055), rgba(56, 232, 200, 0) 240px),
    var(--ink-2);
}

.page-disclaimer .clause__fold {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  width: 54px;
  height: 54px;
  padding: 6px 8px 0 0;
  background: var(--paper-2);
  color: var(--ink);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
  letter-spacing: 0.05em;
  pointer-events: none;
}

.page-disclaimer .clause__summary {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 62px;
  padding: 18px 66px 18px 20px;
  cursor: pointer;
  list-style: none;
}

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

.page-disclaimer .clause__summary::marker {
  content: "";
}

.page-disclaimer .clause__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-disclaimer .clause__title {
  margin: 0;
  font-size: clamp(16px, 4vw, 18px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-disclaimer .clause__chev {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-left: auto;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform var(--dur) var(--ease);
}

.page-disclaimer .clause[open] .clause__chev {
  transform: rotate(225deg) translate(-1px, -1px);
}

.page-disclaimer .clause__body {
  margin-top: 2px;
  padding: 16px 20px 22px;
  border-top: 1px solid var(--disc-hair);
}

.page-disclaimer .clause__body p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--disc-text);
}

.page-disclaimer .clause__body p:first-child {
  margin-top: 0;
}

.page-disclaimer .clause__body .clause__lead {
  font-size: 15px;
  color: var(--cyan-soft);
  letter-spacing: 0.01em;
}

.page-disclaimer .clause__body ul {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .clause__body li {
  position: relative;
  margin-top: 9px;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--disc-text);
}

.page-disclaimer .clause__body li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  opacity: 0.75;
}

.page-disclaimer .clause__body a,
.page-disclaimer .disc-cross a:not(.btn) {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-color: var(--line-cyan);
  text-underline-offset: 3px;
}

/* --- 底部引导带 --- */
.page-disclaimer .disc-cross {
  padding: clamp(30px, 6vw, 52px) 0;
  border-top: 1px solid var(--line-soft);
  background:
    linear-gradient(180deg, rgba(7, 22, 20, 0.92), rgba(7, 22, 20, 0.5)),
    var(--ink);
}

.page-disclaimer .disc-cross__inner {
  display: grid;
  gap: 20px;
}

.page-disclaimer .disc-cross .eyebrow {
  margin: 0;
}

.page-disclaimer .disc-cross h2 {
  margin: 10px 0 0;
  max-width: 560px;
  font-size: clamp(18px, 4.4vw, 24px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-disclaimer .disc-cross p {
  margin: 12px 0 0;
  max-width: 560px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--disc-text);
}

.page-disclaimer .disc-cross__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-disclaimer .disc-cross__more {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

/* --- 平板及以上 --- */
@media (min-width: 880px) {
  .page-disclaimer .disc-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 46px;
  }

  .page-disclaimer .disc-nav {
    position: sticky;
    top: 100px;
    border-bottom: 0;
    padding-bottom: 0;
  }

  .page-disclaimer .disc-nav__list {
    flex-direction: column;
    gap: 2px;
    padding: 0;
    overflow: visible;
  }

  .page-disclaimer .disc-nav__link {
    width: 100%;
    padding: 9px 12px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 14px;
    box-sizing: border-box;
  }

  .page-disclaimer .disc-nav__link.is-active {
    border-left-color: var(--cyan);
  }

  .page-disclaimer .disc-cross__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 48px;
    row-gap: 16px;
  }

  .page-disclaimer .disc-cross__more {
    grid-column: 1 / -1;
  }
}

/* --- 减少动效偏好 --- */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-nav__link,
  .page-disclaimer .clause,
  .page-disclaimer .clause__chev {
    transition: none;
  }
}