/* ===== 页面作用域：Privacy Policy ===== */
.page-privacy {
  position: relative;
  background:
    radial-gradient(ellipse 70% 50% at 85% 95%, rgba(211,47,47,.12) 0%, transparent 70%),
    var(--c-black);
  color: var(--c-gray-light);
  font-family: var(--font-body);
  scroll-behavior: smooth;
  overflow-x: hidden;
}

.page-privacy a {
  color: var(--c-gold-light);
  text-decoration: none;
  transition: color .2s;
}

.page-privacy a:hover {
  color: var(--c-gold);
  text-decoration: underline;
}

.privacy-outer {
  position: relative;
  padding-block: 48px 72px;
}

.privacy-outer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--c-primary) 0%, var(--c-primary) 62%, var(--c-gold) 62%, var(--c-gold) 100%);
}

/* ===== 首屏 ===== */
.privacy-hero {
  position: relative;
  display: grid;
  gap: 36px;
  padding-block: clamp(40px, 7vw, 76px) clamp(32px, 5vw, 56px);
  border-bottom: 1px solid var(--c-line);
}

.privacy-hero::after {
  content: "";
  position: absolute;
  bottom: 24px;
  left: 0;
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, transparent 50%, rgba(211,47,47,.22) 50%, rgba(183,28,28,.45) 100%);
  pointer-events: none;
  z-index: 0;
}

.privacy-hero__copy {
  position: relative;
  z-index: 1;
}

.privacy-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-number);
  font-size: 12px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--c-gray-mid);
  margin-bottom: 18px;
  padding-left: 14px;
  border-left: 3px solid var(--c-primary);
}

.privacy-hero__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(44px, 8vw, 78px);
  line-height: 1.08;
  letter-spacing: .03em;
  color: var(--c-white);
  margin: 0 0 22px;
  text-transform: uppercase;
}

.privacy-hero__sub {
  display: block;
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: clamp(17px, 3vw, 30px);
  color: var(--c-gold);
  letter-spacing: .16em;
  margin-top: 6px;
}

.privacy-hero__lead {
  max-width: 680px;
  margin: 0 0 16px;
  padding-left: 18px;
  border-left: 2px solid var(--c-gold);
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.85;
  color: var(--c-white);
}

.privacy-hero__scope {
  max-width: 660px;
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-gray-mid);
}

.privacy-hero__media {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 8px;
  border: 1px solid var(--c-line);
  background: var(--c-carbon);
  box-shadow: 0 14px 36px rgba(0, 0, 0, .35);
}

.privacy-hero__media::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 8px;
  width: 30px;
  height: 30px;
  border-top: 2px solid var(--c-gold);
  border-left: 2px solid var(--c-gold);
  pointer-events: none;
}

.privacy-hero__media::after {
  content: "";
  position: absolute;
  bottom: 8px;
  right: 8px;
  width: 30px;
  height: 30px;
  border-bottom: 2px solid var(--c-primary);
  border-right: 2px solid var(--c-primary);
  pointer-events: none;
}

.privacy-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  background: #0d0d0d;
}

.privacy-hero__media figcaption {
  padding: 12px 8px 4px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-gray-mid);
}

/* ===== 本页目录 ===== */
.privacy-index {
  padding-block: 30px 38px;
  border-bottom: 1px solid var(--c-line);
}

.privacy-index__title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-gray-mid);
  margin: 0 0 20px;
}

.privacy-index__title span {
  display: inline-block;
  padding: 3px 9px;
  background: var(--c-primary);
  color: var(--c-white);
  font-family: var(--font-number);
  font-size: 12px;
  letter-spacing: .08em;
}

.privacy-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.privacy-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  background: var(--c-carbon);
  border: 1px solid var(--c-line);
  color: var(--c-gray-light);
  text-decoration: none;
  font-size: 14px;
  transition: border-color .2s, background-color .2s, color .2s, transform .2s;
}

.privacy-index__list a span {
  font-family: var(--font-number);
  font-size: 13px;
  font-weight: 500;
  color: var(--c-primary);
}

.privacy-index__list a:hover {
  border-color: var(--c-gold);
  background: #222;
  color: var(--c-white);
  transform: translateX(3px);
}

/* ===== 章节通用 ===== */
.privacy-section {
  padding-block: clamp(32px, 5vw, 56px);
  border-bottom: 1px solid var(--c-line);
  scroll-margin-top: 90px;
}

.privacy-section__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 26px;
}

.privacy-section__num {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(46px, 6vw, 76px);
  line-height: 1;
  color: var(--c-primary);
  opacity: .9;
  min-width: 1ch;
}

.privacy-section__title-wrap {
  flex: 1;
  padding-top: 6px;
  border-top: 1px solid var(--c-line);
}

.privacy-section__rule {
  display: block;
  width: 64px;
  height: 3px;
  margin-bottom: 12px;
  background: linear-gradient(90deg, var(--c-gold) 0%, var(--c-gold) 70%, var(--c-primary) 70%, var(--c-primary) 100%);
}

.privacy-section__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(22px, 3vw, 34px);
  letter-spacing: .04em;
  color: var(--c-white);
  margin: 0;
}

.privacy-section__body {
  max-width: 860px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-gray-light);
}

.privacy-section__body p {
  margin: 0 0 16px;
}

.privacy-note {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--c-line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-gray-mid);
}

/* ===== 收集信息区块 ===== */
.privacy-cat-grid {
  display: grid;
  gap: 16px;
  margin: 20px 0;
}

.privacy-cat {
  background: var(--c-carbon);
  border: 1px solid var(--c-line);
  padding: 22px 22px 12px;
}

.privacy-cat__title {
  font-family: var(--font-heading);
  font-size: 18px;
  color: var(--c-white);
  margin: 0 0 14px;
  letter-spacing: .02em;
}

.privacy-cat__title::after {
  content: "";
  display: block;
  width: 34px;
  height: 2px;
  background: var(--c-primary);
  margin-top: 8px;
}

.privacy-cat__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.privacy-cat__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-gray-light);
}

.privacy-cat__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .6em;
  width: 8px;
  height: 8px;
  background: var(--c-primary);
  transform: rotate(45deg);
}

/* ===== 可展开补充说明 ===== */
.privacy-details {
  margin: 8px 0 20px;
  border: 1px solid var(--c-line);
  background: var(--c-carbon);
}

.privacy-details summary {
  list-style: none;
  cursor: pointer;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-white);
  position: relative;
}

.privacy-details summary::-webkit-details-marker {
  display: none;
}

.privacy-details summary::before {
  content: "+";
  font-family: var(--font-number);
  font-size: 18px;
  line-height: 1;
  color: var(--c-gold);
}

.privacy-details[open] summary::before {
  content: "–";
}

.privacy-details__body {
  padding: 12px 18px 16px;
  border-top: 1px solid var(--c-line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-gray-light);
}

.privacy-details__body p {
  margin: 0;
}

/* ===== 信息使用列表 ===== */
.privacy-use-list {
  list-style: none;
  margin: 20px 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.privacy-use-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 18px;
  background: var(--c-carbon);
  border-left: 3px solid var(--c-primary);
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-gray-light);
  transition: border-left-color .2s, background-color .2s;
}

.privacy-use-list li:hover {
  border-left-color: var(--c-gold);
  background: #202020;
}

.privacy-use-list__tag {
  font-family: var(--font-number);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .05em;
  color: var(--c-gold);
}

.privacy-important {
  margin: 20px 0 0;
  padding: 18px 20px;
  border-left: 4px solid var(--c-gold);
  background: var(--c-carbon);
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-gray-light);
}

/* ===== 信息安全 ===== */
.privacy-security-wrap {
  display: grid;
  gap: 24px;
  margin-top: 8px;
}

.privacy-shield {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  border: 1px solid var(--c-line);
  background: var(--c-carbon);
  padding: 28px 16px;
}

.privacy-shield svg {
  display: block;
  width: 52px;
  height: 58px;
}

.privacy-shield p {
  font-family: var(--font-heading);
  font-size: 14px;
  color: var(--c-white);
  margin: 0;
  text-align: center;
}

.privacy-shield p span {
  display: block;
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-gray-mid);
  margin-top: 4px;
}

.privacy-security__content {
  min-width: 0;
}

.privacy-security__list {
  list-style: none;
  margin: 18px 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.privacy-security__list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.8;
}

.privacy-security__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .7em;
  width: 12px;
  height: 2px;
  background: var(--c-gold);
}

/* ===== 用户权利 ===== */
.privacy-rights-grid {
  display: grid;
  gap: 14px;
  margin: 20px 0;
}

.privacy-right {
  background: var(--c-carbon);
  padding: 20px;
  border-top: 2px solid var(--c-line);
  transition: border-top-color .2s, background-color .2s;
}

.privacy-right:hover {
  border-top-color: var(--c-gold);
  background: #202020;
}

.privacy-right__code {
  font-family: var(--font-number);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--c-primary);
}

.privacy-right h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  color: var(--c-white);
  margin: 10px 0 6px;
}

.privacy-right p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-gray-light);
}

/* ===== 政策变更 ===== */
.privacy-change-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.privacy-change-list li {
  position: relative;
  padding: 16px 18px 16px 44px;
  background: var(--c-carbon);
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-gray-light);
}

.privacy-change-list li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 22px;
  width: 10px;
  height: 10px;
  background: var(--c-primary);
  transform: rotate(45deg);
}

.privacy-change-list strong {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--c-white);
  margin-right: 8px;
}

/* ===== 联系卡片 ===== */
.privacy-contact-card {
  display: grid;
  gap: 1px;
  margin: 20px 0;
  border: 1px solid var(--c-line);
  background: var(--c-line);
}

.privacy-contact-card__item {
  background: var(--c-carbon);
  padding: 16px 18px;
}

.privacy-contact-card__item span {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--c-gray-mid);
}

.privacy-contact-card__item strong {
  font-family: var(--font-number);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--c-white);
  word-break: break-word;
}

.privacy-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

/* ===== 移动端优先媒体查询 ===== */
@media (min-width: 560px) {
  .privacy-index__list {
    grid-template-columns: repeat(2, 1fr);
  }

  .privacy-use-list li {
    grid-template-columns: 132px 1fr;
    gap: 20px;
    align-items: baseline;
  }

  .privacy-contact-card {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 820px) {
  .privacy-hero {
    grid-template-columns: minmax(0, 1fr) 400px;
    align-items: center;
    gap: var(--grid-gap);
  }

  .privacy-hero__media img {
    height: auto;
  }

  .privacy-cat-grid {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
  }

  .privacy-cat {
    display: flex;
    flex-direction: column;
  }

  .privacy-cat__list {
    flex: 1;
    align-content: start;
  }

  .privacy-rights-grid {
    grid-template-columns: 1fr 1fr;
  }

  .privacy-security-wrap {
    grid-template-columns: 160px 1fr;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .privacy-outer {
    padding-block: 64px 96px;
  }

  .privacy-index__list {
    grid-template-columns: repeat(4, 1fr);
  }

  .privacy-section__body {
    max-width: 820px;
  }
}