.page-privacy {
  --privacy-measure: 720px;
  --privacy-rail-w: 300px;
  padding-bottom: clamp(4rem, 10vw, 8rem);
}

/* 首屏 */
.page-privacy .privacy-hero {
  padding-block: clamp(2.25rem, 7vw, 4.75rem) clamp(1.25rem, 3.5vw, 2rem);
}
.page-privacy .privacy-hero__title {
  margin: clamp(.75rem, 2vw, 1.15rem) 0 0;
  max-width: 20ch;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2rem, 5.6vw, 3.4rem);
  line-height: 1.16;
  letter-spacing: -.012em;
  color: var(--text);
}
.page-privacy .privacy-hero__lede {
  margin-top: clamp(1rem, 2.6vw, 1.5rem);
  max-width: 46ch;
  color: rgba(232, 237, 245, .82);
  line-height: 1.85;
  font-size: clamp(1rem, 1.6vw, 1.06rem);
}
.page-privacy .privacy-hero__meta {
  list-style: none;
  margin: clamp(1.25rem, 3.5vw, 2rem) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .55rem 1.75rem;
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--mist);
}
.page-privacy .privacy-hero__meta li {
  display: flex;
  align-items: center;
  gap: .55rem;
  min-width: 0;
  overflow-wrap: anywhere;
}
.page-privacy .privacy-hero__meta li::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  background: var(--gold);
}

/* 条幅视觉 */
.page-privacy .privacy-banner {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}
.page-privacy .privacy-banner .figure {
  margin: 0;
  border: 1px solid var(--hair);
}
.page-privacy .privacy-banner .figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-privacy .privacy-banner .figure__caption {
  padding: .85rem 0 0;
  font-size: .84rem;
  line-height: 1.7;
  color: var(--mist);
}

/* 版心与目录 */
.page-privacy .privacy-layout {
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}
.page-privacy .privacy-article {
  min-width: 0;
  max-width: var(--privacy-measure);
}
.page-privacy .privacy-rail {
  order: -1;
  min-width: 0;
  padding-bottom: 1.35rem;
  border-bottom: 1px solid var(--hair-soft);
}
.page-privacy .privacy-rail .rail__title {
  margin: 0 0 .85rem;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .24em;
  color: var(--mist);
}
.page-privacy .privacy-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 .9rem;
}
.page-privacy .rail__link {
  display: flex;
  align-items: baseline;
  gap: .55rem;
  padding: .45rem 0;
  font-size: .88rem;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .22s var(--ease), border-color .22s var(--ease);
}
.page-privacy .rail__num {
  flex: none;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--gold);
}
.page-privacy .rail__link:hover,
.page-privacy .rail__link:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--hair);
}
.page-privacy .rail__link[aria-current="true"] {
  color: var(--text);
  border-bottom-color: var(--gold);
}
.page-privacy .rail__link[aria-current="true"] .rail__num {
  color: var(--gold-soft);
}

/* 要点速览 */
.page-privacy .privacy-summary {
  margin: 0 0 clamp(2.25rem, 5vw, 3.25rem);
  color: var(--ink);
}
.page-privacy .privacy-summary__title {
  margin: 0 0 .9rem;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: .01em;
  color: var(--ink);
}
.page-privacy .privacy-summary__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-privacy .privacy-summary__list li {
  display: grid;
  gap: .3rem;
  padding: .8rem 0;
  border-top: 1px solid rgba(30, 27, 22, .16);
}
.page-privacy .privacy-summary__list li:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-privacy .privacy-summary__key {
  font-family: var(--mono);
  font-size: .76rem;
  letter-spacing: .16em;
  color: var(--jade);
}
.page-privacy .privacy-summary__val {
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(30, 27, 22, .86);
}

/* 章节 */
.page-privacy .privacy-sec {
  position: relative;
  max-width: var(--privacy-measure);
}
.page-privacy .privacy-sec + .privacy-sec {
  margin-top: clamp(2.5rem, 7vw, 4.5rem);
  padding-top: clamp(2rem, 5vw, 3.25rem);
}
.page-privacy .privacy-sec + .privacy-sec::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: clamp(2rem, 5vw, 3.25rem);
  background: linear-gradient(180deg, rgba(28, 46, 74, .58), rgba(11, 21, 36, 0));
  pointer-events: none;
}
.page-privacy .privacy-sec__title {
  display: flex;
  align-items: baseline;
  gap: clamp(.7rem, 2vw, 1.15rem);
  margin: 0 0 clamp(1rem, 2.6vw, 1.5rem);
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.3rem, 3.1vw, 1.72rem);
  line-height: 1.38;
  letter-spacing: -.005em;
  color: var(--text);
}
.page-privacy .privacy-sec__num {
  flex: none;
  font-family: var(--mono);
  font-size: .82rem;
  letter-spacing: .14em;
  color: var(--gold);
  transform: translateY(-.15em);
}
.page-privacy .privacy-sec__body {
  color: rgba(232, 237, 245, .84);
  font-size: 1rem;
  line-height: 1.85;
}
.page-privacy .privacy-sec__body p {
  margin: 0 0 1.1em;
  max-width: 62ch;
}
.page-privacy .privacy-sec__body p:last-child {
  margin-bottom: 0;
}
.page-privacy .privacy-sec__body a {
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--hair);
}
.page-privacy .privacy-sec__body a:hover,
.page-privacy .privacy-sec__body a:focus-visible {
  border-bottom-color: var(--gold-soft);
}
.page-privacy .privacy-sec__body .aside-note {
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
  max-width: 58ch;
}

/* 条目式定义列表 */
.page-privacy .def-list {
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0;
}
.page-privacy .def-list__row {
  display: grid;
  gap: .35rem;
  padding: 1rem 0;
  border-top: 1px solid var(--hair-soft);
}
.page-privacy .def-list__row:first-child {
  border-top: 1px solid var(--hair);
}
.page-privacy .def-list__key {
  margin: 0;
  font-family: var(--mono);
  font-size: .8rem;
  letter-spacing: .1em;
  color: var(--gold-soft);
}
.page-privacy .def-list__val {
  margin: 0;
  font-size: .97rem;
  line-height: 1.85;
  color: rgba(232, 237, 245, .82);
}

/* 期限条目 */
.page-privacy .term-list {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 clamp(1.25rem, 3vw, 1.75rem);
  padding: 0;
}
.page-privacy .term-list__item {
  display: grid;
  gap: .3rem;
  padding: 1rem 0;
  border-top: 1px solid var(--hair-soft);
}
.page-privacy .term-list__item:first-child {
  border-top: 1px solid var(--hair);
}
.page-privacy .term-list__num {
  font-family: var(--mono);
  font-size: .84rem;
  letter-spacing: .08em;
  color: var(--gold);
}
.page-privacy .term-list__text {
  font-size: .97rem;
  line-height: 1.85;
  color: rgba(232, 237, 245, .82);
}

/* 圆点列表 */
.page-privacy .privacy-list {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0;
  padding: 0;
  max-width: 62ch;
}
.page-privacy .privacy-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: .9rem;
  font-size: .97rem;
  line-height: 1.85;
  color: rgba(232, 237, 245, .82);
}
.page-privacy .privacy-list li:last-child {
  margin-bottom: 0;
}
.page-privacy .privacy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 7px;
  border: 1px solid var(--gold);
}

/* 联络块 */
.page-privacy .privacy-contact {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0;
  padding: .2rem 0 .2rem clamp(1rem, 2.6vw, 1.6rem);
  border-left: 2px solid var(--gold);
}
.page-privacy .privacy-contact__line {
  margin: 0 0 .6rem;
  font-family: var(--mono);
  font-size: .86rem;
  line-height: 1.8;
  letter-spacing: .01em;
  color: rgba(232, 237, 245, .9);
  overflow-wrap: anywhere;
}
.page-privacy .privacy-contact__line:last-child {
  margin-bottom: 0;
}

/* 回到顶部 */
.page-privacy .privacy-topwrap {
  margin: clamp(2.25rem, 6vw, 3.5rem) 0 0;
}
.page-privacy .privacy-top {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding-bottom: .35rem;
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--hair);
  transition: color .22s var(--ease), border-color .22s var(--ease);
}
.page-privacy .privacy-top::before {
  content: "↑";
  color: var(--gold);
}
.page-privacy .privacy-top:hover,
.page-privacy .privacy-top:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
}

/* 平板起：定义列表分两栏 */
@media (min-width: 768px) {
  .page-privacy .def-list__row {
    grid-template-columns: minmax(120px, 176px) minmax(0, 1fr);
    gap: 0 clamp(1.25rem, 3vw, 2.25rem);
    align-items: baseline;
  }
  .page-privacy .term-list__item {
    grid-template-columns: minmax(110px, 148px) minmax(0, 1fr);
    gap: 0 clamp(1.25rem, 3vw, 2.25rem);
    align-items: baseline;
  }
  .page-privacy .privacy-summary__list li {
    grid-template-columns: minmax(96px, 130px) minmax(0, 1fr);
    gap: 0 clamp(1.25rem, 3vw, 2rem);
    align-items: baseline;
  }
  .page-privacy .privacy-rail__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* 桌面：窄版心 + 右侧固定索引 */
@media (min-width: 1024px) {
  .page-privacy .privacy-layout {
    grid-template-columns: minmax(0, 720px) minmax(0, 300px);
    justify-content: space-between;
    gap: clamp(2.5rem, 5vw, 5rem);
  }
  .page-privacy .privacy-rail {
    order: 0;
    position: sticky;
    top: clamp(5.5rem, 11vh, 7.5rem);
    padding: 0 0 0 clamp(1rem, 2vw, 1.6rem);
    border-bottom: 0;
    border-left: 1px solid var(--hair-soft);
  }
  .page-privacy .privacy-rail__list {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .page-privacy .def-list__row,
  .page-privacy .term-list__item {
    padding: 1.15rem 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .rail__link,
  .page-privacy .privacy-top {
    transition: none;
  }
}