.page-disclaimer {
  --dl-num-w: 62px;
  --dl-grid-line: rgba(58, 63, 71, 0.08);
  background: var(--paper);
  color: var(--fog);
  font-family: var(--font-body);
  padding-bottom: 72px;
}

.page-disclaimer .shell {
  padding-top: 18px;
}

/* 首屏：手册扉页 */
.page-disclaimer .disclaimer-hero {
  position: relative;
  margin-top: 14px;
  padding: 26px 20px 24px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-hard);
  display: grid;
  gap: 22px;
  overflow: hidden;
}

.page-disclaimer .disclaimer-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, var(--dl-grid-line) 0 1px, transparent 1px 26px),
    repeating-linear-gradient(90deg, var(--dl-grid-line) 0 1px, transparent 1px 26px);
  pointer-events: none;
}

.page-disclaimer .disclaimer-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 64px;
  height: 6px;
  background: var(--red);
}

.page-disclaimer .disclaimer-hero > * {
  position: relative;
  z-index: 1;
}

.page-disclaimer .disclaimer-hero__text h1 {
  margin: 10px 0 16px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.2rem, 7vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-disclaimer .disclaimer-hero__lead {
  margin: 0 0 12px;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--fog);
  max-width: 34em;
}

.page-disclaimer .disclaimer-hero__meta {
  margin: 16px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--red-deep);
}

.page-disclaimer .disclaimer-hero__figure {
  margin: 0;
}

.page-disclaimer .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* 章节速览卡 */
.page-disclaimer .disclaimer-cards {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-disclaimer .disclaimer-card {
  display: grid;
  gap: 6px;
  padding: 14px 14px 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
  box-shadow: var(--shadow-hard);
  text-decoration: none;
  color: var(--fog);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .disclaimer-card:hover,
.page-disclaimer .disclaimer-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--red-deep);
}

.page-disclaimer .disclaimer-card__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--red);
}

.page-disclaimer .disclaimer-card__title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.0625rem;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-disclaimer .disclaimer-card__body {
  font-size: 0.875rem;
  line-height: 1.68;
  color: var(--fog);
}

/* 主体：章节轨 + 条文 */
.page-disclaimer .disclaimer-layout {
  display: grid;
  gap: 26px;
  margin-top: 34px;
}

.page-disclaimer .disclaimer-rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-disclaimer .disclaimer-rail__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--fog);
  opacity: 0.72;
}

.page-disclaimer .rail {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-disclaimer .rail__link {
  display: block;
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fog);
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--white);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-disclaimer .rail__link:hover {
  border-color: var(--red-deep);
  color: var(--red-deep);
}

.page-disclaimer .rail__link[aria-current="true"] {
  color: var(--red-deep);
  border-color: var(--red);
  background: rgba(214, 64, 47, 0.07);
}

.page-disclaimer .disclaimer-rail__back {
  display: inline-block;
  width: max-content;
  max-width: 100%;
  padding-bottom: 3px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--red);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .disclaimer-rail__back:hover {
  color: var(--red-deep);
  border-color: var(--red-deep);
}

.page-disclaimer .disclaimer-body {
  min-width: 0;
}

.page-disclaimer .notice-section {
  display: grid;
  gap: 12px;
  padding: 24px 0 26px;
  border-top: 1px solid var(--line);
}

.page-disclaimer .notice-section:last-child {
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .notice-section__num {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.5rem;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--red);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .notice-section__num::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.page-disclaimer .notice-section__main h2 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.375rem;
  line-height: 1.25;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-disclaimer .notice-section__main p {
  margin: 0 0 12px;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--fog);
  max-width: 34em;
}

.page-disclaimer .notice-section__main p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .notice-section__more {
  margin-top: 14px;
}

/* 安装条件对照 */
.page-disclaimer .install-list {
  list-style: none;
  margin: 16px 0 14px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  max-width: 32em;
}

.page-disclaimer .install-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  background: var(--white);
}

.page-disclaimer .install-list__key {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--fog);
  opacity: 0.8;
}

.page-disclaimer .install-list__val {
  font-family: var(--font-head);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink);
}

/* 联系块 */
.page-disclaimer .contact-block {
  margin-top: 18px;
  padding: 16px 16px 18px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  box-shadow: var(--shadow-hard);
}

.page-disclaimer .contact-block__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--fog);
  opacity: 0.8;
}

.page-disclaimer .contact-block__email {
  margin: 8px 0 14px;
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.01em;
  color: var(--ink);
  word-break: break-all;
}

.page-disclaimer .contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
}

.page-disclaimer .btn--quiet {
  color: var(--red-deep);
}

/* 备案 */
.page-disclaimer .filing {
  margin-top: 16px;
  padding: 16px 16px 18px;
  background: var(--ink);
  color: var(--white);
  border-left: 3px solid var(--red);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
}

.page-disclaimer .filing__key {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-disclaimer .filing__num {
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--white);
}

.page-disclaimer .filing__link {
  font-family: var(--font-head);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid var(--red);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .filing__link:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* 断点 */
@media (min-width: 560px) {
  .page-disclaimer .install-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .disclaimer-hero {
    padding: 30px 26px 28px;
  }
}

@media (min-width: 720px) {
  .page-disclaimer .disclaimer-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .notice-section {
    grid-template-columns: var(--dl-num-w) minmax(0, 1fr);
    gap: 26px;
  }

  .page-disclaimer .notice-section__num {
    align-items: flex-start;
    padding-top: 4px;
  }

  .page-disclaimer .notice-section__num::after {
    display: none;
  }

  .page-disclaimer .contact-block {
    padding: 18px 20px 20px;
  }
}

@media (min-width: 960px) {
  .page-disclaimer .disclaimer-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
    gap: 32px;
    padding: 36px 34px 34px;
  }

  .page-disclaimer .disclaimer-cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-disclaimer .disclaimer-layout {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 48px;
    margin-top: 40px;
  }

  .page-disclaimer .disclaimer-rail {
    position: sticky;
    top: 88px;
    align-self: start;
    gap: 18px;
  }

  .page-disclaimer .rail {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    border-left: 1px solid var(--line);
  }

  .page-disclaimer .rail__link {
    padding: 9px 12px;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    margin-left: -1px;
  }

  .page-disclaimer .rail__link[aria-current="true"] {
    border-left-color: var(--red);
    background: rgba(214, 64, 47, 0.07);
  }

  .page-disclaimer .notice-section {
    padding: 30px 0 32px;
  }

  .page-disclaimer .notice-section__main h2 {
    font-size: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disclaimer-card,
  .page-disclaimer .rail__link,
  .page-disclaimer .disclaimer-rail__back,
  .page-disclaimer .filing__link {
    transition: none;
  }

  .page-disclaimer .disclaimer-card:hover,
  .page-disclaimer .disclaimer-card:focus-visible {
    transform: none;
  }
}