/* ===== 用户协议页 · page-disclaimer ===== */
.page-disclaimer {
  --doc-line: rgba(58, 71, 97, .55);
  --doc-measure: 44rem;
  color: var(--mist);
}

/* ---- 页首横幅 ---- */
.page-disclaimer .doc-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(26px, 5vw, 54px) 0 clamp(38px, 6vw, 76px);
  background-color: var(--midnight);
  border-bottom: 1px solid var(--metal);
}

.page-disclaimer .doc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(90% 130% at 88% 0%, rgba(55, 225, 232, .18), transparent 62%),
    radial-gradient(80% 120% at 0% 100%, rgba(200, 16, 46, .20), transparent 64%),
    linear-gradient(180deg, rgba(5, 10, 19, .30), rgba(5, 10, 19, .94));
}

.page-disclaimer .doc-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .38;
  pointer-events: none;
}

.page-disclaimer .doc-hero__inner {
  position: relative;
  z-index: 2;
}

.page-disclaimer .doc-hero .label {
  display: inline-block;
  color: var(--cyan);
}

.page-disclaimer .doc-hero .title-xl {
  margin: 14px 0 0;
  color: var(--bright);
  font-size: clamp(38px, 7vw, 66px);
  line-height: 1.04;
  letter-spacing: -.01em;
}

.page-disclaimer .doc-hero__lede {
  margin: 20px 0 0;
  max-width: 60ch;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.85;
}

/* ---- 版本信息条 ---- */
.page-disclaimer .doc-meta {
  display: grid;
  gap: 0;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--metal);
}

.page-disclaimer .doc-meta__item {
  padding: 14px 0;
  border-bottom: 1px solid var(--metal);
}

.page-disclaimer .doc-meta__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan-deep);
}

.page-disclaimer .doc-meta__val {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--bright);
}

@media (min-width: 900px) {
  .page-disclaimer .doc-meta {
    grid-template-columns: auto auto minmax(0, 1fr);
  }
  .page-disclaimer .doc-meta__item {
    padding: 16px 24px 16px 0;
    border-bottom: 0;
    border-top: 0;
  }
  .page-disclaimer .doc-meta__item + .doc-meta__item {
    padding-left: 24px;
    border-left: 1px solid var(--metal);
  }
}

/* ---- 正文布局 ---- */
.page-disclaimer .doc-body {
  padding-top: clamp(38px, 6vw, 72px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-disclaimer .doc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
}

@media (min-width: 1000px) {
  .page-disclaimer .doc-layout {
    grid-template-columns: 196px minmax(0, var(--doc-measure));
    gap: clamp(40px, 6vw, 88px);
  }
}

/* ---- 左侧条文索引 ---- */
.page-disclaimer .doc-index {
  padding-top: 14px;
  border-top: 1px solid var(--metal);
}

.page-disclaimer .doc-index__title {
  margin: 0 0 12px;
  color: var(--mist);
}

.page-disclaimer .doc-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-disclaimer .doc-index__item {
  flex: 0 0 auto;
}

.page-disclaimer .doc-index__link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid transparent;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--ease), border-color var(--ease), background-color var(--ease);
}

.page-disclaimer .doc-index__link:hover,
.page-disclaimer .doc-index__link:focus-visible {
  color: var(--bright);
  border-color: var(--cyan-deep);
  background: var(--glass);
}

.page-disclaimer .doc-index__num {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
}

@media (min-width: 1000px) {
  .page-disclaimer .doc-index {
    position: sticky;
    top: 32px;
    align-self: start;
  }
  .page-disclaimer .doc-index__list {
    display: block;
    overflow: visible;
    padding: 0;
  }
  .page-disclaimer .doc-index__item {
    flex: none;
  }
  .page-disclaimer .doc-index__item + .doc-index__item {
    border-top: 1px solid var(--metal);
  }
  .page-disclaimer .doc-index__link {
    padding: 11px 12px;
    white-space: normal;
  }
}

/* ---- 条文 ---- */
.page-disclaimer .doc-content {
  min-width: 0;
}

.page-disclaimer .doc-clause {
  position: relative;
  padding-bottom: clamp(30px, 4.5vw, 46px);
  margin-bottom: clamp(30px, 4.5vw, 46px);
  border-bottom: 1px solid var(--doc-line);
  scroll-margin-top: 24px;
}

.page-disclaimer .doc-clause:last-of-type {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-disclaimer .doc-clause__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-bottom: 18px;
}

.page-disclaimer .doc-clause__num {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
  padding-bottom: 2px;
  border-bottom: 2px solid var(--cyan-deep);
  transition: color var(--ease), border-color var(--ease);
}

.page-disclaimer .doc-clause__title {
  margin: 0;
  color: var(--bright);
  font-weight: 600;
}

.page-disclaimer .doc-clause__tag {
  margin-left: auto;
  flex: none;
}

.page-disclaimer .doc-clause:target .doc-clause__num {
  color: var(--orange);
  border-color: var(--orange);
}

.page-disclaimer .doc-clause:target .doc-clause__title {
  color: var(--cyan);
}

/* ---- 条文正文排版 ---- */
.page-disclaimer .doc-content p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .doc-content strong {
  color: var(--bright);
  font-weight: 600;
}

.page-disclaimer .doc-content a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 225, 232, .42);
  transition: color var(--ease), border-color var(--ease);
}

.page-disclaimer .doc-content a:hover,
.page-disclaimer .doc-content a:focus-visible {
  color: var(--bright);
  border-bottom-color: var(--bright);
}

.page-disclaimer .doc-clause ul {
  display: grid;
  gap: 14px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-disclaimer .doc-clause li {
  position: relative;
  padding-left: 24px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-disclaimer .doc-clause li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: .72em;
  width: 7px;
  height: 7px;
  border: 1px solid var(--cyan-deep);
  transform: rotate(45deg);
}

.page-disclaimer .doc-clause__note {
  margin-top: 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---- 联系信息 ---- */
.page-disclaimer .doc-contact {
  margin: 0 0 18px;
  padding: 0;
  border-top: 1px solid var(--metal);
}

.page-disclaimer .doc-contact__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--metal);
}

.page-disclaimer .doc-contact dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan-deep);
}

.page-disclaimer .doc-contact dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--bright);
  word-break: break-word;
}

@media (min-width: 640px) {
  .page-disclaimer .doc-contact__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

/* ---- 悬停强调线（桌面端） ---- */
@media (min-width: 1000px) {
  .page-disclaimer .doc-clause::before {
    content: "";
    position: absolute;
    left: -22px;
    top: 4px;
    bottom: 34px;
    width: 2px;
    background: var(--cyan);
    opacity: 0;
    transition: opacity var(--ease);
  }
  .page-disclaimer .doc-clause:hover::before,
  .page-disclaimer .doc-clause:focus-within::before {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .doc-index__link,
  .page-disclaimer .doc-clause::before,
  .page-disclaimer .doc-clause__num,
  .page-disclaimer .doc-content a {
    transition: none;
  }
}

/* ---- 打印：只留条文 ---- */
@media print {
  .page-disclaimer .doc-hero {
    background: none;
    border-bottom: 1px solid #999;
    padding: 0 0 16px;
  }
  .page-disclaimer .doc-hero__bg,
  .page-disclaimer .doc-hero::before {
    display: none;
  }
  .page-disclaimer .doc-hero .title-xl,
  .page-disclaimer .doc-hero .label,
  .page-disclaimer .doc-hero__lede,
  .page-disclaimer .doc-meta__key,
  .page-disclaimer .doc-meta__val {
    color: #000;
  }
  .page-disclaimer .doc-meta {
    border-top-color: #999;
  }
  .page-disclaimer .doc-meta__item {
    border-color: #999;
  }
  .page-disclaimer .doc-index {
    display: none;
  }
  .page-disclaimer .doc-layout {
    display: block;
  }
  .page-disclaimer .doc-body {
    padding: 16px 0 0;
  }
  .page-disclaimer .doc-clause {
    border-bottom-color: #999;
    break-inside: avoid;
  }
  .page-disclaimer .doc-content p,
  .page-disclaimer .doc-clause li,
  .page-disclaimer .doc-clause__note,
  .page-disclaimer .doc-contact dd {
    color: #111;
  }
  .page-disclaimer .doc-clause__title,
  .page-disclaimer .doc-clause__num,
  .page-disclaimer .doc-content strong,
  .page-disclaimer .doc-contact dt {
    color: #000;
    border-color: #000;
  }
  .page-disclaimer .doc-contact {
    border-top-color: #999;
  }
  .page-disclaimer .doc-contact__row {
    border-bottom-color: #999;
  }
}