.page-disclaimer {
  --d-hint: rgba(243, 238, 228, .62);
  --d-card: rgba(16, 26, 46, .72);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .crumb {
  padding-top: 22px;
}

.page-disclaimer .usage-hero {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  padding-top: clamp(24px, 4vw, 46px);
  padding-bottom: clamp(40px, 6vw, 78px);
}

.page-disclaimer .usage-hero h1 {
  font-family: var(--f-display);
  font-size: clamp(34px, 5.6vw, 70px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: .01em;
  margin: 14px 0 0;
  color: var(--paper);
}

.page-disclaimer .usage-hero__lead {
  max-width: 48ch;
  margin: 22px 0 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--txt-soft);
}

.page-disclaimer .usage-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-disclaimer .usage-hero__frame {
  border: 1px solid var(--line);
  background: var(--ink-700);
}

.page-disclaimer .usage-hero__frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.9) contrast(1.05);
}

.page-disclaimer .usage-hero__frame .media-frame__cap {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--cool);
  letter-spacing: .02em;
}

@media (min-width: 960px) {
  .page-disclaimer .usage-hero {
    grid-template-columns: 5fr 7fr;
    align-items: end;
  }
}

/* ---------- 章节头 ---------- */
.page-disclaimer .usage-chapter {
  display: block;
  margin-bottom: clamp(26px, 4vw, 44px);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .usage-chapter .chapter__num {
  font-family: var(--f-mono);
  font-size: 14px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-disclaimer .usage-chapter .chapter__title {
  font-family: var(--f-display);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1.15;
  margin: 10px 0 0;
  color: var(--paper);
}

.page-disclaimer .usage-chapter .chapter__lead {
  max-width: 62ch;
  margin: 14px 0 0;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--txt-soft);
}

/* ---------- 步骤长文 ---------- */
.page-disclaimer .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-2);
  counter-reset: none;
}

.page-disclaimer .steps__item {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 16px;
  padding: 24px 4px;
  border-bottom: 1px solid var(--line);
  transition: background .22s var(--ease), transform .22s var(--ease);
}

.page-disclaimer .steps__num {
  font-family: var(--f-mono);
  font-size: 20px;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-disclaimer .steps__title {
  font-size: 19px;
  font-weight: 600;
  line-height: 1.45;
  margin: 0;
  color: var(--paper);
}

.page-disclaimer .steps__body p {
  margin: 10px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--txt-soft);
}

.page-disclaimer .steps__hint {
  padding-left: 12px;
  border-left: 1px solid var(--line-2);
  font-size: 14px;
  color: var(--d-hint);
  opacity: .55;
  transition: opacity .2s var(--ease), border-color .2s var(--ease);
}

.page-disclaimer .steps__item:hover {
  background: linear-gradient(90deg, var(--cyan-soft), transparent 62%);
}

.page-disclaimer .steps__item:hover .steps__hint,
.page-disclaimer .steps__item:focus-within .steps__hint {
  opacity: 1;
  border-left-color: var(--cyan);
}

@media (min-width: 780px) {
  .page-disclaimer .steps__item {
    grid-template-columns: 96px 1fr;
    gap: 34px;
    padding: 30px 12px;
  }
  .page-disclaimer .steps__item:hover {
    transform: translateY(-4px);
  }
  .page-disclaimer .steps__num {
    font-size: 26px;
  }
  .page-disclaimer .steps__body {
    max-width: 78ch;
  }
}

@media (max-width: 779px) {
  .page-disclaimer .steps__hint {
    opacity: 1;
  }
}

/* ---------- 时间刻度 ---------- */
.page-disclaimer .tickline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .tickline__item {
  position: relative;
  padding: 24px 0 24px 22px;
  border-left: 1px solid var(--line);
}

.page-disclaimer .tickline__item:last-child {
  border-left-color: var(--cyan);
}

.page-disclaimer .tickline__mark {
  position: absolute;
  left: -4px;
  top: 32px;
  width: 7px;
  height: 7px;
  background: var(--cyan);
}

.page-disclaimer .tickline__when {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-disclaimer .tickline__title {
  margin: 10px 0 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--paper);
}

.page-disclaimer .tickline__text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--txt-soft);
}

@media (min-width: 840px) {
  .page-disclaimer .tickline {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 24px;
    border-top: 1px solid var(--line-2);
    padding-top: 0;
  }
  .page-disclaimer .tickline__item {
    border-left: none;
    padding: 44px 0 8px;
  }
  .page-disclaimer .tickline__item:last-child {
    border-left: none;
  }
  .page-disclaimer .tickline__item::after {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 1px;
    background: var(--line);
  }
  .page-disclaimer .tickline__item:last-child::after {
    background: var(--cyan);
  }
  .page-disclaimer .tickline__mark {
    left: 0;
    top: -4px;
  }
}

/* ---------- 更正说明 ---------- */
.page-disclaimer .fixbox {
  margin-top: clamp(30px, 4vw, 48px);
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange);
  background: var(--orange-soft);
}

.page-disclaimer .fixbox__label {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-disclaimer .fixbox__text {
  max-width: 68ch;
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--txt-soft);
}

.page-disclaimer .fixbox .btn {
  margin-top: 20px;
}

/* ---------- 宽度刻度带 ---------- */
.page-disclaimer .widthscale {
  position: relative;
  height: 86px;
  margin: 12px 0 34px;
}

.page-disclaimer .widthscale__bar {
  position: absolute;
  left: 0;
  right: 0;
  top: 26px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan) 46%, var(--orange) 100%);
  opacity: .85;
}

.page-disclaimer .widthscale__tick {
  position: absolute;
  top: 26px;
  left: var(--x);
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.page-disclaimer .widthscale__line {
  display: block;
  width: 1px;
  height: 14px;
  background: var(--line-2);
}

.page-disclaimer .widthscale__val {
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .04em;
  color: var(--cool);
  white-space: nowrap;
}

/* ---------- 兼容对照 ---------- */
.page-disclaimer .compat {
  border-top: 1px solid var(--line-2);
}

.page-disclaimer .compat__row {
  display: grid;
  gap: 6px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
  transition: background .2s var(--ease);
}

.page-disclaimer .compat__row:hover {
  background: var(--cyan-soft);
}

.page-disclaimer .compat__row--head {
  display: none;
}

.page-disclaimer .compat__name {
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
}

.page-disclaimer .compat__ver {
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--cyan);
}

.page-disclaimer .compat__note {
  font-size: 15px;
  line-height: 1.8;
  color: var(--txt-soft);
}

@media (min-width: 800px) {
  .page-disclaimer .compat__row {
    grid-template-columns: 1fr .9fr 2.1fr;
    gap: 24px;
    align-items: baseline;
    padding: 20px 8px;
  }
  .page-disclaimer .compat__row--head {
    display: grid;
    padding: 12px 8px;
    border-bottom: 1px solid var(--line-2);
  }
  .page-disclaimer .compat__row--head span {
    font-family: var(--f-mono);
    font-size: 12px;
    letter-spacing: .12em;
    color: var(--cool);
  }
}

/* ---------- 设备说明 ---------- */
.page-disclaimer .device-notes {
  margin-top: clamp(28px, 4vw, 44px);
}

.page-disclaimer .device-notes__panel {
  padding: 24px 22px;
  border-left: 2px solid var(--moss);
}

.page-disclaimer .device-notes__panel .eyebrow {
  color: var(--moss);
}

.page-disclaimer .device-notes__panel h3 {
  margin: 12px 0 0;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--paper);
}

.page-disclaimer .device-notes__panel p:not(.eyebrow) {
  margin: 12px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--txt-soft);
}

/* ---------- 规范条款 ---------- */
.page-disclaimer .rules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-disclaimer .rules__item {
  background: var(--ink-900);
  padding: 24px 22px;
  transition: background .2s var(--ease);
}

.page-disclaimer .rules__item:hover {
  background: var(--ink-700);
}

.page-disclaimer .rules__title {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--paper);
}

.page-disclaimer .rules__title::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 1px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--cyan);
}

.page-disclaimer .rules__item p {
  margin: 12px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--txt-soft);
}

@media (min-width: 780px) {
  .page-disclaimer .rules {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 联系 ---------- */
.page-disclaimer .contact-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-disclaimer .contact-card {
  background: var(--d-card);
  padding: 24px 22px;
}

.page-disclaimer .contact-card__key {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-disclaimer .contact-card__val {
  margin: 12px 0 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}

.page-disclaimer .contact-card__hint {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--cool);
}

@media (min-width: 760px) {
  .page-disclaimer .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-disclaimer .contact-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 去向 ---------- */
.page-disclaimer .nextstop {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px 24px;
  padding: 26px 0 8px;
}

.page-disclaimer .nextstop__lead {
  margin: 0;
  font-size: 16px;
  color: var(--txt-soft);
}

.page-disclaimer .nextstop__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 收尾留白 ---------- */
.page-disclaimer .section:last-of-type {
  padding-bottom: clamp(56px, 8vw, 110px);
}

@media (max-width: 420px) {
  .page-disclaimer .rules__item,
  .page-disclaimer .contact-card,
  .page-disclaimer .fixbox {
    padding: 20px 16px;
  }
  .page-disclaimer .widthscale__val {
    font-size: 11px;
  }
}

.page-disclaimer {
  --x: inherit;
}