/* ===== 页面专属：.page-disclaimer ===== */
.page-disclaimer {
  --clause-bg: var(--color-surface);
  --clause-border: var(--color-border);
  --clause-text: var(--color-text);
  --clause-muted: var(--color-text-secondary);
  --clause-accent: var(--color-primary);
  --clause-code-bg: rgba(255, 69, 0, 0.08);
  --clause-highlight-bg: rgba(255, 215, 0, 0.06);
  --clause-warn-bg: rgba(255, 51, 119, 0.06);
  --clause-divider: var(--color-border);
  --toc-gap: var(--space-md);
  --clause-radius: var(--radius-lg);
  --toggle-size: 36px;
  font-family: var(--font-body);
  color: var(--clause-text);
  background-color: var(--color-bg);
  line-height: 1.7;
}

/* 隐藏屏幕外辅助文本 */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== 顶部氛围区 ===== */
.page-disclaimer-hero {
  position: relative;
  overflow: hidden;
  min-height: 280px;
}

.page-disclaimer-hero .container {
  position: relative;
  padding: 0;
}

.page-disclaimer-hero-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  min-height: 200px;
  object-fit: cover;
  object-position: center 30%;
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  opacity: 0.7;
  background-color: var(--color-secondary);
}

.page-disclaimer-hero-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-xl) var(--space-lg) var(--space-lg);
  background: linear-gradient(transparent 0%, rgba(13, 17, 23, 0.92) 70%);
  z-index: 2;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-xs);
  font-size: 14px;
  color: var(--clause-muted);
  margin-bottom: var(--space-sm);
}

.breadcrumb a {
  color: var(--clause-accent);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.breadcrumb a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

.breadcrumb span[aria-current="page"] {
  color: var(--clause-text);
  font-weight: 500;
}

.page-disclaimer-hero-title {
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 42px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.5);
}

.page-disclaimer-hero-desc {
  font-size: 16px;
  color: var(--clause-muted);
  max-width: 680px;
  margin: 0;
  line-height: 1.6;
}

/* ===== 正文主体 ===== */
.page-disclaimer-body {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-4xl);
}

.page-disclaimer-body-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

/* ===== 目录 ===== */
.page-disclaimer-toc {
  background-color: var(--clause-bg);
  border-radius: var(--clause-radius);
  padding: var(--space-lg);
  border: 1px solid var(--clause-border);
}

.page-disclaimer-toc .tag {
  display: inline-block;
  margin-bottom: var(--space-md);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.page-disclaimer-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.page-disclaimer-toc-list a {
  color: var(--clause-accent);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  padding: var(--space-xs) 0;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast), padding-left var(--transition-fast);
  display: block;
}

.page-disclaimer-toc-list a:hover,
.page-disclaimer-toc-list a:focus {
  border-bottom-color: var(--clause-accent);
  padding-left: var(--space-xs);
}

/* ===== 条款文章 ===== */
.page-disclaimer-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.page-disclaimer-clause {
  background-color: var(--clause-bg);
  border-radius: var(--clause-radius);
  border: 1px solid var(--clause-border);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.page-disclaimer-clause:hover {
  box-shadow: var(--shadow-card);
}

/* 标题行 */
.page-disclaimer-clause-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-lg) var(--space-md);
  cursor: default;
  position: relative;
}

.page-disclaimer-clause-num {
  font-family: var(--font-heading);
  font-size: 22px;
  line-height: 1.3;
  margin: 0;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

/* 折叠按钮 */
.page-disclaimer-toggle-btn {
  flex-shrink: 0;
  width: var(--toggle-size);
  height: var(--toggle-size);
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background var(--transition-fast);
  color: var(--clause-muted);
  position: relative;
}

.page-disclaimer-toggle-btn:hover,
.page-disclaimer-toggle-btn:focus {
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.page-disclaimer-toggle-icon {
  display: block;
  width: 16px;
  height: 16px;
  position: relative;
  transition: transform var(--transition-base);
}

.page-disclaimer-toggle-icon::before,
.page-disclaimer-toggle-icon::after {
  content: "";
  position: absolute;
  background-color: currentColor;
  border-radius: 2px;
}

.page-disclaimer-toggle-icon::before {
  width: 16px;
  height: 2px;
  top: 7px;
  left: 0;
}

.page-disclaimer-toggle-icon::after {
  width: 2px;
  height: 16px;
  top: 0;
  left: 7px;
}

/* 展开状态 + 号变减号 */
[aria-expanded="true"] .page-disclaimer-toggle-icon {
  transform: rotate(0deg);
}

[aria-expanded="true"] .page-disclaimer-toggle-icon::after {
  opacity: 0;
  transform: scaleY(0);
}

/* 折叠体 */
.page-disclaimer-clause-body {
  padding: 0 var(--space-lg) var(--space-lg);
  transition: max-height var(--transition-slow), opacity var(--transition-base);
  max-height: 2000px;
  opacity: 1;
  overflow: hidden;
}

[aria-expanded="false"] ~ .page-disclaimer-clause-body {
  max-height: 0;
  opacity: 0;
  padding-bottom: 0;
}

/* ===== 正文排版 ===== */
.page-disclaimer-text {
  font-size: 16px;
  line-height: 1.75;
  color: var(--clause-text);
  margin: 0 0 var(--space-md);
}

.page-disclaimer-text:last-child {
  margin-bottom: 0;
}

.page-disclaimer-em {
  color: var(--clause-accent);
  font-weight: 700;
  font-style: normal;
}

.page-disclaimer-code {
  font-family: var(--font-data);
  font-size: 0.92em;
  background-color: var(--clause-code-bg);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  color: var(--clause-accent);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

/* ===== 高亮块 ===== */
.page-disclaimer-highlight {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-sm) var(--space-md);
  background-color: var(--clause-highlight-bg);
  border-left: 4px solid var(--color-accent);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  margin-top: var(--space-lg);
}

.page-disclaimer-highlight-warn {
  background-color: var(--clause-warn-bg);
  border-left-color: var(--color-error);
}

.page-disclaimer-highlight-label {
  font-family: var(--font-data);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-accent);
  white-space: nowrap;
}

.page-disclaimer-highlight-warn .page-disclaimer-highlight-label {
  color: var(--color-error);
}

.page-disclaimer-highlight-value {
  font-size: 16px;
  color: var(--clause-text);
  font-weight: 400;
  line-height: 1.5;
}

/* ===== 有序列表 ===== */
.page-disclaimer-list {
  list-style: none;
  margin: var(--space-md) 0 var(--space-lg);
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.page-disclaimer-list-item {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  font-size: 16px;
  line-height: 1.7;
}

.page-disclaimer-list-marker {
  font-family: var(--font-data);
  font-weight: 700;
  color: var(--clause-accent);
  min-width: 24px;
  flex-shrink: 0;
  text-align: right;
}

.page-disclaimer-list-content {
  flex: 1;
}

.page-disclaimer-list-content strong {
  color: var(--color-text);
  font-weight: 700;
  display: block;
  margin-bottom: 2px;
}

.page-disclaimer-list-content a {
  color: var(--clause-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-disclaimer-list-content a:hover {
  opacity: 0.8;
}

/* ===== 联系信息网格 ===== */
.page-disclaimer-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  padding: var(--space-md) 0;
}

.page-disclaimer-contact-item {
  background-color: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--clause-border);
}

.page-disclaimer-contact-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--clause-muted);
  margin-bottom: var(--space-xs);
}

.page-disclaimer-contact-value {
  display: block;
  font-size: 17px;
  font-weight: 500;
  color: var(--color-text);
}

.page-disclaimer-contact-value.page-disclaimer-code {
  display: inline-block;
  font-size: 16px;
  background-color: transparent;
  padding: 0;
  color: var(--clause-accent);
}

a.page-disclaimer-contact-value.page-disclaimer-code {
  text-decoration: underline;
  text-underline-offset: 3px;
}

a.page-disclaimer-contact-value.page-disclaimer-code:hover {
  opacity: 0.85;
}

.page-disclaimer-contact-note {
  font-size: 14px;
  color: var(--clause-muted);
  margin: var(--space-xs) 0 0;
  line-height: 1.5;
}

/* ===== 响应式桌面 ===== */
@media (min-width: 768px) {
  .page-disclaimer-hero-title {
    font-size: 58px;
  }

  .page-disclaimer-hero-overlay {
    padding: var(--space-2xl) var(--space-xl) var(--space-xl);
  }

  .page-disclaimer-body-inner {
    grid-template-columns: 280px 1fr;
    gap: var(--space-2xl);
    align-items: start;
  }

  .page-disclaimer-toc {
    position: sticky;
    top: calc(80px + var(--space-lg));
  }

  .page-disclaimer-clause-num {
    font-size: 28px;
  }

  .page-disclaimer-clause-header {
    padding: var(--space-xl) var(--space-xl) var(--space-md);
  }

  .page-disclaimer-clause-body {
    padding: 0 var(--space-xl) var(--space-xl);
  }

  .page-disclaimer-contact-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-disclaimer-contact-item:first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .page-disclaimer-hero-title {
    font-size: 72px;
  }

  .page-disclaimer-body-inner {
    grid-template-columns: 300px 1fr;
    gap: var(--space-3xl);
  }

  .page-disclaimer-contact-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-disclaimer-contact-item:first-child {
    grid-column: auto;
  }
}

/* ===== 移动端适配 ===== */
@media (max-width: 767px) {
  .page-disclaimer-hero {
    min-height: 200px;
  }

  .page-disclaimer-hero-title {
    font-size: 30px;
  }

  .page-disclaimer-hero-desc {
    font-size: 14px;
  }

  .page-disclaimer-clause-header {
    padding: var(--space-md) var(--space-md) var(--space-sm);
  }

  .page-disclaimer-clause-body {
    padding: 0 var(--space-md) var(--space-md);
  }

  .page-disclaimer-clause-num {
    font-size: 18px;
  }

  .page-disclaimer-highlight {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .page-disclaimer-contact-grid {
    gap: var(--space-sm);
  }

  .page-disclaimer-contact-item {
    padding: var(--space-sm) var(--space-md);
  }

  .page-disclaimer-list-marker {
    min-width: 20px;
    font-size: 15px;
  }
}

/* ===== 窄屏极端保护 ===== */
@media (max-width: 420px) {
  .page-disclaimer-hero-title {
    font-size: 24px;
  }

  .page-disclaimer-clause-num {
    font-size: 16px;
  }

  .page-disclaimer-text {
    font-size: 15px;
  }

  .page-disclaimer-code {
    font-size: 13px;
    padding: 1px 6px;
  }

  .page-disclaimer-toggle-btn {
    width: 30px;
    height: 30px;
  }
}

/* ===== 滚动显现动画 ===== */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal="fade"] {
  transform: none;
  opacity: 0;
}

[data-reveal="fade"].revealed {
  opacity: 1;
}