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

.page-disclaimer {
  --dis-measure: 640px;
  --dis-block: clamp(2.5rem, 6vw, 4.5rem);
  --dis-rule: rgba(192, 138, 62, 0.16);
  --dis-rule-strong: rgba(192, 138, 62, 0.5);

  position: relative;
  background: var(--ink);
  color: var(--text-body);
}

/* ---------- 页头 ---------- */

.page-disclaimer .terms-masthead {
  position: relative;
  padding-top: calc(var(--header-h) + clamp(2rem, 5vw, 3.5rem));
  padding-bottom: 0;
  overflow: hidden;
  background-color: var(--ink);
  background-image:
    linear-gradient(180deg, rgba(11, 13, 16, 0.55) 0%, rgba(11, 13, 16, 0.86) 62%, var(--ink) 100%),
    repeating-linear-gradient(90deg, rgba(192, 138, 62, 0.13) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(192, 138, 62, 0.10) 0 1px, transparent 1px 96px);
  border-bottom: 1px solid var(--line-dark);
}

.page-disclaimer .terms-masthead::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(58% 78% at 80% 18%, rgba(240, 217, 168, 0.10), transparent 72%);
  pointer-events: none;
}

.page-disclaimer .terms-masthead .wrap {
  position: relative;
  z-index: 1;
}

.page-disclaimer .terms-masthead .breadcrumb {
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--graphite);
}

.page-disclaimer .terms-masthead .breadcrumb a {
  color: var(--graphite);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .terms-masthead .breadcrumb a:hover {
  color: var(--copper-bright);
  border-bottom-color: var(--line-dark-strong);
}

.page-disclaimer .terms-masthead__eyebrow {
  margin: 0 0 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--copper);
}

.page-disclaimer .terms-masthead__title {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 5.4vw, 3.6rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-disclaimer .terms-masthead__lede {
  margin: 0;
  max-width: 46rem;
  font-size: clamp(0.95rem, 1.2vw, 1.05rem);
  line-height: 1.9;
  color: var(--text-body);
}

.page-disclaimer .terms-masthead__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.75rem;
  margin: 1.75rem 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--dis-rule);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--graphite);
}

.page-disclaimer .terms-masthead__meta a {
  color: var(--copper-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line-dark-strong);
  transition: border-color var(--dur) var(--ease);
}

.page-disclaimer .terms-masthead__meta a:hover {
  border-bottom-color: var(--copper-bright);
}

.page-disclaimer .terms-masthead__figure {
  position: relative;
  z-index: 1;
  margin: clamp(2rem, 5vw, 3rem) auto 0;
  padding-bottom: 0;
}

.page-disclaimer .terms-masthead__figure .media-frame {
  border: 1px solid var(--line-dark);
  border-bottom: 0;
  background: var(--ink-soft);
}

.page-disclaimer .terms-masthead__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

/* ---------- 版心布局 ---------- */

.page-disclaimer .terms-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  padding-block: var(--dis-block);
}

.page-disclaimer .rail-host {
  display: none;
}

.page-disclaimer .terms-body {
  width: 100%;
  max-width: var(--dis-measure);
  margin-inline: auto;
}

/* ---------- 正文导语 ---------- */

.page-disclaimer .terms-body__intro {
  margin: 0 0 clamp(2rem, 5vw, 3rem);
  padding-left: 1.1rem;
  border-left: 2px solid var(--copper);
  font-size: 0.98rem;
  line-height: 1.95;
  color: var(--text-dim);
}

/* ---------- 条款分节 ---------- */

.page-disclaimer .term {
  margin-top: clamp(2rem, 5vw, 3rem);
  padding-top: clamp(1.75rem, 4vw, 2.5rem);
  border-top: 1px solid var(--dis-rule);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-disclaimer .term:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-disclaimer .term__head {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 1.35rem;
}

.page-disclaimer .term__letter {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  padding: 0.3rem 0.4rem;
  border: 1px solid var(--dis-rule-strong);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  line-height: 1;
  color: var(--copper-bright);
  background: rgba(192, 138, 62, 0.07);
}

.page-disclaimer .term__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  line-height: 1.35;
  letter-spacing: -0.005em;
  color: var(--white);
}

/* ---------- 条款条目 ---------- */

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

.page-disclaimer .term__item {
  position: relative;
  display: grid;
  grid-template-columns: 3.6rem minmax(0, 1fr);
  column-gap: 1rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--dis-rule);
}

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

.page-disclaimer .term__item--mark::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 56px;
  height: 2px;
  background: var(--copper-bright);
}

.page-disclaimer .term__no {
  padding-top: 0.35rem;
  font-size: 0.73rem;
  letter-spacing: 0.05em;
  color: var(--copper);
}

.page-disclaimer .term__text {
  margin: 0;
  font-size: 1rem;
  line-height: 1.95;
  color: var(--text-body);
}

.page-disclaimer .terms-body a {
  color: var(--copper-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line-dark-strong);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-disclaimer .terms-body a:hover {
  color: var(--lamp);
  border-bottom-color: var(--copper-bright);
}

/* ---------- 页尾回溯带 ---------- */

.page-disclaimer .terms-return {
  padding-block: clamp(2.5rem, 6vw, 4rem);
  background: var(--paper);
  color: var(--ink-soft);
  border-top: 1px solid var(--line-dark-strong);
}

.page-disclaimer .terms-return__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem 3rem;
}

.page-disclaimer .terms-return__eyebrow {
  margin: 0 0 0.85rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: #8a6222;
}

.page-disclaimer .terms-return__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-disclaimer .terms-return__text {
  margin: 0 0 1.5rem;
  max-width: 40rem;
  font-size: 0.98rem;
  line-height: 1.9;
  color: rgba(20, 24, 29, 0.82);
}

.page-disclaimer .terms-return__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-disclaimer .terms-return__link {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.25rem;
  border: 1px solid rgba(11, 13, 16, 0.28);
  font-size: 0.92rem;
  line-height: 1.4;
  color: var(--ink-soft);
  text-decoration: none;
  transition: background-color var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.page-disclaimer .terms-return__link:hover {
  background: rgba(11, 13, 16, 0.06);
  border-color: rgba(11, 13, 16, 0.5);
}

.page-disclaimer .terms-return__link--solid {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

.page-disclaimer .terms-return__link--solid:hover {
  background: #1d232b;
  border-color: #1d232b;
  color: var(--lamp);
}

/* ---------- 窄屏 ---------- */

@media (max-width: 640px) {
  .page-disclaimer .terms-masthead {
    padding-top: calc(var(--header-h) + 1.75rem);
  }

  .page-disclaimer .term__item {
    grid-template-columns: minmax(0, 1fr);
    row-gap: 0.3rem;
    padding: 0.9rem 0;
  }

  .page-disclaimer .term__no {
    padding-top: 0;
  }

  .page-disclaimer .term__head {
    gap: 0.7rem;
  }

  .page-disclaimer .terms-return__link {
    flex: 1 1 auto;
    justify-content: center;
  }
}

/* ---------- 宽屏：窄条索引栏 + 非对称正文 ---------- */

@media (min-width: 1200px) {
  .page-disclaimer .terms-layout {
    grid-template-columns: 88px minmax(0, var(--dis-measure));
    justify-content: center;
    column-gap: clamp(2rem, 5vw, 4.5rem);
  }

  .page-disclaimer .rail-host {
    display: block;
  }

  .page-disclaimer .rail-host .rail {
    position: sticky;
    top: calc(var(--header-h) + 2.5rem);
  }

  .page-disclaimer .terms-return__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
    align-items: start;
  }
}