/* ================= 使用条款页 page-disclaimer ================= */

.page-disclaimer {
  --terms-sticky: calc(var(--header-h) + 24px);
  background: var(--paper);
  color: var(--ink-900);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ---------- 页头 ---------- */
.page-disclaimer .terms-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-900);
  color: var(--paper);
  padding-block: clamp(36px, 5.5vw, 62px) clamp(46px, 7vw, 88px);
}

.page-disclaimer .terms-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .36;
  filter: saturate(.6) contrast(1.06);
  pointer-events: none;
}

.page-disclaimer .terms-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(115% 88% at 10% 0%, rgba(53, 224, 208, .17), transparent 58%),
    linear-gradient(180deg, rgba(7, 19, 15, .62) 0%, rgba(7, 19, 15, .9) 60%, rgba(7, 19, 15, .98) 100%);
}

.page-disclaimer .terms-hero__inner {
  position: relative;
  z-index: 3;
}

.page-disclaimer .terms-hero .ig-crumb {
  margin-bottom: clamp(22px, 3.6vw, 38px);
}

.page-disclaimer .terms-hero h1 {
  margin-block: .1em .3em;
  color: var(--paper);
}

.page-disclaimer .terms-hero__lede {
  max-width: 46ch;
  margin: 0 0 1.5em;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--mute-dark);
}

.page-disclaimer .terms-hero__pills {
  margin-top: .2em;
}

.page-disclaimer .terms-hero__mark {
  display: none;
}

@media (min-width: 900px) {
  .page-disclaimer .terms-hero__mark {
    display: block;
    position: absolute;
    z-index: 3;
    right: clamp(14px, 3vw, 42px);
    top: 50%;
    writing-mode: vertical-rl;
    transform: translateY(-50%) rotate(180deg);
    margin: 0;
    font-family: var(--font-mono);
    font-size: var(--fs-13);
    letter-spacing: .3em;
    color: var(--cyan);
    opacity: .68;
  }
}

/* ---------- 主体双栏 ---------- */
.page-disclaimer .terms-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4.4vw, 64px);
  align-items: start;
  padding-block: clamp(40px, 6vw, 84px) clamp(52px, 8vw, 108px);
}

@media (min-width: 900px) {
  .page-disclaimer .terms-layout {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
  }
}

/* ---------- 左侧条款目录 ---------- */
.page-disclaimer .terms-rail {
  min-width: 0;
}

.page-disclaimer .terms-rail__sticky {
  position: static;
}

@media (min-width: 900px) {
  .page-disclaimer .terms-rail__sticky {
    position: sticky;
    top: var(--terms-sticky);
  }
}

.page-disclaimer .terms-rail__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .2em;
  color: var(--mute-paper);
}

.page-disclaimer .terms-toc {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--line-paper);
}

.page-disclaimer .terms-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-left: -1px;
  padding: 10px 14px;
  border-left: 2px solid transparent;
  font-size: var(--fs-15);
  line-height: 1.55;
  color: var(--mute-paper);
  text-decoration: none;
  transition: color .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-disclaimer .terms-toc__link:hover {
  color: var(--ink-900);
  background: var(--paper-3);
}

.page-disclaimer .terms-toc__link[aria-current="true"] {
  color: var(--cyan-deep);
  border-left-color: var(--cyan-deep);
  background: rgba(14, 107, 99, .07);
  font-weight: 600;
}

.page-disclaimer .terms-toc__idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--score-deep);
  opacity: .85;
}

/* ---------- 右侧正文 ---------- */
.page-disclaimer .terms-doc {
  min-width: 0;
  max-width: 76ch;
}

.page-disclaimer .terms-intro {
  margin: 0 0 clamp(26px, 3.6vw, 40px);
  padding-bottom: clamp(22px, 3vw, 34px);
  border-bottom: 2px solid var(--paper-2);
  font-size: var(--fs-17);
  line-height: 1.9;
  color: var(--mute-paper);
}

.page-disclaimer .terms-clause {
  padding-block: clamp(30px, 4.2vw, 48px);
  border-top: 1px solid var(--line-paper);
  scroll-margin-top: var(--terms-sticky);
}

.page-disclaimer .terms-clause__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: clamp(12px, 2vw, 22px);
  margin-bottom: clamp(14px, 2.2vw, 24px);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--paper-2);
}

.page-disclaimer .terms-clause__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--score-deep);
}

.page-disclaimer .terms-clause__title {
  margin: 0;
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.015em;
  color: var(--ink-900);
}

.page-disclaimer .terms-clause .ig-prose {
  color: var(--ink-800);
}

.page-disclaimer .terms-clause .ig-prose p {
  font-size: var(--fs-17);
  line-height: 1.88;
}

.page-disclaimer .terms-clause .ig-prose > p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .terms-doc a {
  color: var(--cyan-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(14, 107, 99, .38);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-disclaimer .terms-doc a:hover {
  color: var(--ink-900);
  border-bottom-color: var(--score-deep);
}

/* ---------- 条目列表 ---------- */
.page-disclaimer .terms-list {
  display: grid;
  gap: 10px;
  margin: 0 0 1.2em;
  padding: 0;
  list-style: none;
}

.page-disclaimer .terms-list li {
  position: relative;
  padding-left: 26px;
  font-size: var(--fs-17);
  line-height: 1.78;
  color: var(--ink-800);
}

.page-disclaimer .terms-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .76em;
  width: 14px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan-deep);
  opacity: .75;
}

.page-disclaimer .terms-list--stop li::before {
  background: var(--score-deep);
  opacity: .9;
}

/* ---------- 提示块 ---------- */
.page-disclaimer .terms-callout {
  margin-top: clamp(18px, 2.6vw, 28px);
  padding: clamp(16px, 2.4vw, 24px) clamp(18px, 2.6vw, 26px);
  border-left: 3px solid var(--score-deep);
  border-radius: 0 var(--r-lg) var(--r-lg) 0;
  background: var(--paper-3);
  font-size: var(--fs-15);
  line-height: 1.85;
  color: var(--mute-paper);
}

/* ---------- 底部动作 ---------- */
.page-disclaimer .terms-actions {
  margin-top: clamp(24px, 3.4vw, 36px);
}

/* ---------- 回到顶部 ---------- */
.page-disclaimer .terms-backtop {
  position: fixed;
  z-index: 30;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--ink-800);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .08em;
  text-decoration: none;
  box-shadow: var(--shadow-card);
  transition: background-color .22s var(--ease), transform .22s var(--ease);
}

.page-disclaimer .terms-backtop:hover {
  background: var(--ink-700);
  transform: translateY(-2px);
}

/* ---------- 窄屏收束 ---------- */
@media (max-width: 599px) {
  .page-disclaimer .terms-hero__lede {
    font-size: var(--fs-15);
  }

  .page-disclaimer .terms-toc {
    flex-direction: row;
    overflow-x: auto;
    border-left: 0;
    border-bottom: 1px solid var(--line-paper);
    padding-bottom: 4px;
    gap: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .page-disclaimer .terms-toc__link {
    flex: none;
    margin-left: 0;
    border-left: 0;
    border-bottom: 2px solid transparent;
    padding: 8px 12px;
    white-space: nowrap;
  }

  .page-disclaimer .terms-toc__link[aria-current="true"] {
    border-left-color: transparent;
    border-bottom-color: var(--cyan-deep);
  }

  .page-disclaimer .terms-backtop {
    padding: 9px 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .terms-toc__link,
  .page-disclaimer .terms-doc a,
  .page-disclaimer .terms-backtop {
    transition: none;
  }

  .page-disclaimer .terms-backtop:hover {
    transform: none;
  }
}