.page-disclaimer {
  --terms-read: 40rem;
  --terms-rule: rgba(42, 50, 59, 0.72);
  position: relative;
  padding-top: calc(var(--header-h) + 20px);
  padding-bottom: 40px;
  background:
    radial-gradient(1100px 460px at 80% -6%, rgba(79, 166, 255, 0.09), transparent 62%),
    radial-gradient(760px 380px at 4% 52%, rgba(227, 167, 58, 0.05), transparent 70%),
    var(--bg);
  color: var(--silver);
  font-family: var(--font-body);
}

.page-disclaimer a:focus-visible {
  outline: 2px solid var(--night);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 横幅 ---------- */
.page-disclaimer .terms-banner {
  margin: 0 0 22px;
  padding: 0;
}

.page-disclaimer .terms-banner__frame {
  position: relative;
  overflow: hidden;
  height: clamp(168px, 24vw, 296px);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: linear-gradient(122deg, var(--ink-800), var(--ink-900) 68%);
  box-shadow: var(--shadow-card);
}

.page-disclaimer .terms-banner__frame img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.5;
  filter: grayscale(0.35) contrast(1.06);
}

.page-disclaimer .terms-banner__frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(8, 10, 13, 0.12), rgba(8, 10, 13, 0.86) 92%),
    repeating-linear-gradient(0deg, rgba(79, 166, 255, 0.055) 0 1px, transparent 1px 3px);
}

.page-disclaimer .terms-banner__frame::after {
  content: "";
  position: absolute;
  inset: 16px;
  z-index: 2;
  pointer-events: none;
  opacity: 0.85;
  background:
    linear-gradient(var(--amber), var(--amber)) 0 0 / 26px 1px no-repeat,
    linear-gradient(var(--amber), var(--amber)) 0 0 / 1px 26px no-repeat,
    linear-gradient(var(--amber), var(--amber)) 100% 0 / 26px 1px no-repeat,
    linear-gradient(var(--amber), var(--amber)) 100% 0 / 1px 26px no-repeat,
    linear-gradient(var(--amber), var(--amber)) 0 100% / 26px 1px no-repeat,
    linear-gradient(var(--amber), var(--amber)) 0 100% / 1px 26px no-repeat,
    linear-gradient(var(--amber), var(--amber)) 100% 100% / 26px 1px no-repeat,
    linear-gradient(var(--amber), var(--amber)) 100% 100% / 1px 26px no-repeat;
}

.page-disclaimer .terms-banner__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 面包屑与导语 ---------- */
.page-disclaimer .breadcrumb {
  margin-bottom: 18px;
}

.page-disclaimer .terms-intro {
  padding: 0 0 30px;
}

.page-disclaimer .terms-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-disclaimer h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(30px, 5vw, 46px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: 0.01em;
  color: var(--cold);
}

.page-disclaimer .terms-intro .lede {
  max-width: 46rem;
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--silver);
}

/* ---------- 布局 ---------- */
.page-disclaimer .terms-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding: 32px 0 64px;
}

/* ---------- 侧边刻度目录 ---------- */
.page-disclaimer .terms-rail {
  position: relative;
}

.page-disclaimer .terms-rail__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-disclaimer .terms-rail ol {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-disclaimer .terms-rail li {
  position: relative;
}

.page-disclaimer .terms-rail a {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0 9px 18px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);
}

.page-disclaimer .terms-rail a::before {
  content: "";
  position: absolute;
  left: -3.5px;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  background: var(--line);
  box-shadow: 0 0 0 3px var(--bg);
  transition: background-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.page-disclaimer .terms-rail a:hover,
.page-disclaimer .terms-rail a:focus-visible {
  color: var(--cold);
}

.page-disclaimer .terms-rail a:hover::before,
.page-disclaimer .terms-rail a:focus-visible::before {
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(227, 167, 58, 0.16);
}

.page-disclaimer .terms-rail__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--night);
}

/* ---------- 正文 ---------- */
.page-disclaimer .terms-body {
  max-width: var(--terms-read);
}

.page-disclaimer .terms-section {
  padding: 30px 0;
  border-top: 1px solid var(--terms-rule);
  scroll-margin-top: calc(var(--header-h) + 32px);
}

.page-disclaimer .terms-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-disclaimer .terms-section__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.page-disclaimer .terms-section__num {
  position: relative;
  flex: 0 0 auto;
  padding-left: 17px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-disclaimer .terms-section__num::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.46em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(227, 167, 58, 0.14);
}

.page-disclaimer .terms-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--cold);
}

.page-disclaimer .terms-body p {
  margin: 0 0 1.05em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--silver);
}

.page-disclaimer .terms-body a {
  color: var(--night);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 166, 255, 0.4);
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-disclaimer .terms-body a:hover,
.page-disclaimer .terms-body a:focus-visible {
  color: var(--cold);
  border-bottom-color: var(--amber);
}

.page-disclaimer .terms-list {
  list-style: none;
  margin: 0 0 1.05em;
  padding: 0;
}

.page-disclaimer .terms-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 0.5em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--silver);
}

.page-disclaimer .terms-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.88em;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}

.page-disclaimer .terms-list li:last-child {
  margin-bottom: 0;
}

.page-disclaimer .terms-body .terms-callout {
  margin: 0 0 1.05em;
  padding: 15px 18px;
  border-left: 2px solid var(--amber);
  border-radius: 0 var(--r-m) var(--r-m) 0;
  background: linear-gradient(100deg, rgba(227, 167, 58, 0.09), rgba(227, 167, 58, 0) 78%);
}

.page-disclaimer .terms-body .terms-callout p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--cold);
}

.page-disclaimer .terms-section > p:last-child,
.page-disclaimer .terms-section > .terms-list:last-child,
.page-disclaimer .terms-section > .terms-callout:last-child {
  margin-bottom: 0;
}

/* ---------- 备案信息条 ---------- */
.page-disclaimer .terms-record {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin: 20px 0 1.15em;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--line);
  overflow: hidden;
}

.page-disclaimer .terms-record__item {
  padding: 14px 16px;
  background: var(--ink-800);
}

.page-disclaimer .terms-record__label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-disclaimer .terms-record__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  color: var(--cold);
}

/* ---------- 页尾注释带 ---------- */
.page-disclaimer .terms-body .terms-foot {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--terms-rule);
}

.page-disclaimer .terms-body .terms-foot p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 返回顶部浮标 ---------- */
.page-disclaimer .terms-to-top {
  position: fixed;
  right: 18px;
  bottom: calc(88px + env(safe-area-inset-bottom, 0px));
  z-index: 40;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(18, 23, 28, 0.9);
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  text-decoration: none;
  box-shadow: var(--shadow-card);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease),
    transform var(--dur-fast) var(--ease);
}

.page-disclaimer .terms-to-top:hover,
.page-disclaimer .terms-to-top:focus-visible {
  color: var(--cold);
  border-color: var(--amber);
  transform: translateY(-2px);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-disclaimer .terms-intro .lede {
    font-size: 16px;
  }
  .page-disclaimer .terms-body p,
  .page-disclaimer .terms-list li {
    font-size: 16px;
  }
  .page-disclaimer .terms-section__title {
    font-size: 22px;
  }
  .page-disclaimer .terms-section {
    padding: 34px 0;
  }
}

/* ---------- 桌面：侧边刻度 + 窄栏正文 ---------- */
@media (min-width: 960px) {
  .page-disclaimer .terms-layout {
    grid-template-columns: 190px minmax(0, var(--terms-read));
    gap: 64px;
    justify-content: start;
    padding: 44px 0 92px;
  }

  .page-disclaimer .terms-rail {
    position: sticky;
    top: calc(var(--header-h) + 30px);
    align-self: start;
  }

  .page-disclaimer .terms-body {
    max-width: none;
  }

  .page-disclaimer .terms-to-top {
    right: 32px;
    bottom: 32px;
    width: 44px;
    height: 44px;
  }
}

/* ---------- 窄屏：目录改为横向胶囊 ---------- */
@media (max-width: 959px) {
  .page-disclaimer .terms-rail__title {
    display: none;
  }

  .page-disclaimer .terms-rail ol {
    display: flex;
    gap: 8px;
    border-left: 0;
    overflow-x: auto;
    padding: 2px 2px 10px;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
  }

  .page-disclaimer .terms-rail li {
    flex: 0 0 auto;
  }

  .page-disclaimer .terms-rail a {
    padding: 8px 14px;
    border: 1px solid var(--line);
    border-radius: var(--r-pill);
    background: var(--ink-800);
    white-space: nowrap;
    font-size: 12px;
  }

  .page-disclaimer .terms-rail a::before {
    display: none;
  }

  .page-disclaimer .terms-rail__num {
    font-size: 10px;
  }
}

@media (max-width: 420px) {
  .page-disclaimer .terms-banner__frame::after {
    inset: 10px;
  }
  .page-disclaimer .terms-section__head {
    gap: 10px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .terms-to-top,
  .page-disclaimer .terms-rail a,
  .page-disclaimer .terms-rail a::before,
  .page-disclaimer .terms-body a {
    transition: none;
  }
  .page-disclaimer .terms-to-top:hover,
  .page-disclaimer .terms-to-top:focus-visible {
    transform: none;
  }
}