/* ========================================
   page-disclaimer ｜ 使用说明页面专属样式
   移动端优先 + 桌面增强
   限定作用域: .page-disclaimer
   ======================================== */

.page-disclaimer {
  --pd-hero-overlay-grad: linear-gradient(135deg, rgba(10,21,37,0.88) 0%, rgba(11,29,58,0.72) 100%);
  --pd-clr-divider: rgba(255,107,53,0.25);
  --pd-clr-highlight-bg: rgba(255,107,53,0.08);
  --pd-clr-card-border: rgba(255,107,53,0.15);
  --pd-clr-num: var(--clr-accent, #FF6B35);
  --pd-max-text: 720px;
  --pd-space-section: clamp(40px, 6vw, 96px);

  color: var(--clr-text, #FFFFFF);
  background-color: var(--clr-bg, #0A1525);
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
}

/* ----- 容器复用 ----- */
.page-disclaimer .container {
  max-width: var(--max-width, 1280px);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg, 24px);
  padding-right: var(--space-lg, 24px);
}

.page-disclaimer .mono {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  letter-spacing: 0.04em;
}

/* ----- 顶部进度条 ----- */
.page-disclaimer .content-progress {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  height: 3px;
  background: transparent;
  border-radius: 2px;
  overflow: hidden;
  margin-top: -3px;
}

.page-disclaimer .content-progress .progress-fill {
  height: 100%;
  width: 0;
  background: var(--clr-accent, #FF6B35);
  border-radius: 2px;
  transition: width 0.1s linear;
  will-change: width;
}

/* ----- Hero 区域 ----- */
.page-disclaimer .disclaimer-hero {
  position: relative;
  overflow: hidden;
  min-height: 260px;
  display: flex;
  align-items: center;
}

.page-disclaimer .disclaimer-hero .container {
  position: relative;
  z-index: 2;
  width: 100%;
}

.page-disclaimer .hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  filter: saturate(1.05) brightness(0.55);
  border-radius: 0;
}

.page-disclaimer .hero-overlay {
  position: relative;
  z-index: 3;
  padding: var(--space-xl, 48px) 0 var(--space-lg, 32px);
  max-width: var(--pd-max-text, 720px);
}

.page-disclaimer .hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--clr-text-sec, #B0C4DE);
  margin-bottom: var(--space-md, 16px);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-disclaimer .hero-breadcrumb a {
  color: var(--clr-accent, #FF6B35);
  text-decoration: none;
  transition: opacity 0.2s;
}

.page-disclaimer .hero-breadcrumb a:hover {
  opacity: 0.75;
}

.page-disclaimer .hero-breadcrumb-sep {
  color: var(--clr-border, #2C3E50);
}

.page-disclaimer .hero-breadcrumb-current {
  color: var(--clr-text-sec, #B0C4DE);
  font-weight: 500;
}

.page-disclaimer .hero-title {
  font-family: var(--font-head, 'Inter', sans-serif);
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--clr-text, #FFFFFF);
  margin: 0 0 var(--space-sm, 8px);
  letter-spacing: -0.02em;
}

.page-disclaimer .hero-desc {
  font-size: clamp(0.9rem, 1.2vw, 1.1rem);
  line-height: 1.6;
  color: var(--clr-text-sec, #B0C4DE);
  max-width: 580px;
  margin: 0;
}

/* ----- Section Panel 通用 ----- */
.page-disclaimer .section-panel {
  position: relative;
  padding: var(--pd-space-section) 0;
}

.page-disclaimer .panel-label {
  display: inline-flex;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--clr-accent, #FF6B35);
  background: rgba(255,107,53,0.08);
  padding: 4px 14px;
  border-radius: var(--radius-xl, 48px);
  margin-bottom: var(--space-md, 16px);
  letter-spacing: 0.08em;
}

.page-disclaimer .panel-heading {
  font-family: var(--font-head, 'Inter', sans-serif);
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-text, #FFFFFF);
  margin: 0 0 var(--space-sm, 8px);
  letter-spacing: -0.01em;
}

.page-disclaimer .panel-divider {
  width: 60px;
  height: 3px;
  background: var(--pd-clr-divider);
  border-radius: 2px;
  margin-bottom: var(--space-lg, 32px);
}

/* ----- 条款列表 ----- */
.page-disclaimer .clause-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md, 16px);
}

.page-disclaimer .clause-item {
  display: flex;
  gap: var(--space-md, 16px);
  padding: var(--space-md, 16px) var(--space-lg, 24px);
  background: var(--clr-card-bg, #0F1E32);
  border-radius: var(--radius-md, 16px);
  border-left: 3px solid var(--pd-clr-card-border);
  transition: background 0.25s, border-color 0.25s;
}

.page-disclaimer .clause-item:hover {
  background: color-mix(in srgb, var(--clr-card-bg, #0F1E32) 96%, var(--clr-accent, #FF6B35));
  border-color: var(--clr-accent, #FF6B35);
}

.page-disclaimer .clause-num {
  flex-shrink: 0;
  display: inline-flex;
  align-items: flex-start;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--pd-clr-num);
  min-width: 2em;
  padding-top: 2px;
}

.page-disclaimer .clause-body {
  flex: 1;
  min-width: 0;
}

.page-disclaimer .clause-body p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--clr-text-sec, #B0C4DE);
}

.page-disclaimer .clause-body p strong {
  color: var(--clr-text, #FFFFFF);
  font-weight: 600;
}

.page-disclaimer .highlight {
  color: var(--clr-text, #FFFFFF);
}

.page-disclaimer .accent-text {
  color: var(--clr-accent, #FF6B35);
  font-weight: 600;
}

.page-disclaimer .inline-link {
  color: var(--clr-accent, #FF6B35);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: opacity 0.2s;
}

.page-disclaimer .inline-link:hover {
  opacity: 0.75;
}

/* ----- 信任声明 ----- */
.page-disclaimer .section-trust {
  background: var(--pd-clr-highlight-bg);
  border-top: 1px solid var(--pd-clr-divider);
  border-bottom: 1px solid var(--pd-clr-divider);
  padding: var(--space-lg, 32px) 0;
}

.page-disclaimer .trust-badge {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md, 16px);
  max-width: var(--pd-max-text, 720px);
  margin: 0 auto;
}

.page-disclaimer .trust-icon {
  flex-shrink: 0;
  font-size: 1.4rem;
  color: var(--clr-accent, #FF6B35);
  line-height: 1.4;
}

.page-disclaimer .trust-text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--clr-text-sec, #B0C4DE);
  font-style: italic;
}

/* ----- 底部导航卡片 ----- */
.page-disclaimer .section-footer-nav {
  padding-top: var(--space-lg, 32px);
  padding-bottom: var(--space-2xl, 72px);
}

.page-disclaimer .footer-nav-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md, 16px);
  max-width: var(--pd-max-text, 720px);
  margin: 0 auto;
}

.page-disclaimer .footer-nav-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-md, 16px) var(--space-lg, 24px);
  background: var(--clr-card-bg, #0F1E32);
  border-radius: var(--radius-md, 16px);
  border: 1px solid var(--clr-border, #2C3E50);
  text-decoration: none;
  transition: background 0.25s, border-color 0.25s, transform 0.2s;
}

.page-disclaimer .footer-nav-card:hover {
  background: color-mix(in srgb, var(--clr-card-bg, #0F1E32) 96%, var(--clr-accent, #FF6B35));
  border-color: var(--clr-accent, #FF6B35);
  transform: translateY(-2px);
}

.page-disclaimer .footer-nav-icon {
  font-size: 1rem;
  color: var(--clr-accent, #FF6B35);
  font-weight: 500;
}

.page-disclaimer .footer-nav-label {
  font-family: var(--font-head, 'Inter', sans-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--clr-text, #FFFFFF);
}

.page-disclaimer .footer-nav-desc {
  font-size: 0.85rem;
  color: var(--clr-text-sec, #B0C4DE);
  margin: 0;
}

/* ----- 滚动显现动画 ----- */
.page-disclaimer [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* ----- 响应式：窄屏优化 ----- */
@media (max-width: 639px) {
  .page-disclaimer .disclaimer-hero {
    min-height: 200px;
  }

  .page-disclaimer .hero-overlay {
    padding: var(--space-lg, 24px) 0 var(--space-md, 16px);
  }

  .page-disclaimer .panel-heading {
    font-size: 1.4rem;
  }

  .page-disclaimer .clause-item {
    flex-direction: column;
    gap: var(--space-sm, 8px);
    padding: var(--space-md, 16px);
  }

  .page-disclaimer .clause-num {
    font-size: 0.75rem;
    min-width: auto;
  }

  .page-disclaimer .clause-body p {
    font-size: 0.88rem;
  }

  .page-disclaimer .trust-badge {
    flex-direction: column;
    gap: var(--space-sm, 8px);
  }

  .page-disclaimer .trust-icon {
    font-size: 1.1rem;
  }

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

  .page-disclaimer .container {
    padding-left: var(--space-md, 16px);
    padding-right: var(--space-md, 16px);
  }
}

/* ----- 桌面增强 ----- */
@media (min-width: 640px) {
  .page-disclaimer .clause-list {
    gap: var(--space-md, 16px);
    max-width: var(--pd-max-text, 720px);
  }

  .page-disclaimer .clause-item {
    padding: var(--space-md, 16px) var(--space-lg, 32px);
  }

  .page-disclaimer .footer-nav-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg, 32px);
  }

  .page-disclaimer .footer-nav-card {
    padding: var(--space-lg, 32px) var(--space-xl, 48px);
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .disclaimer-hero {
    min-height: 320px;
  }

  .page-disclaimer .hero-title {
    font-size: 3.6rem;
  }

  .page-disclaimer .hero-overlay {
    padding: var(--space-2xl, 72px) 0 var(--space-xl, 48px);
  }

  .page-disclaimer .clause-item {
    padding: var(--space-md, 16px) var(--space-xl, 48px);
  }

  .page-disclaimer .clause-body p {
    font-size: 1rem;
  }

  .page-disclaimer .section-panel {
    padding: var(--pd-space-section) 0;
  }
}

/* ----- 打印样式优化 ----- */
@media print {
  .page-disclaimer {
    background: #FFFFFF !important;
    color: #000000 !important;
  }

  .page-disclaimer .disclaimer-hero {
    min-height: auto;
    padding: 20px 0;
  }

  .page-disclaimer .hero-img {
    display: none !important;
  }

  .page-disclaimer .hero-overlay {
    padding: 0;
  }

  .page-disclaimer .hero-title {
    color: #000000;
    font-size: 2rem;
  }

  .page-disclaimer .hero-desc,
  .page-disclaimer .clause-body p,
  .page-disclaimer .trust-text,
  .page-disclaimer .footer-nav-desc,
  .page-disclaimer .hero-breadcrumb {
    color: #333333 !important;
  }

  .page-disclaimer .clause-item {
    background: #F5F5F5 !important;
    border-left-color: #FF6B35 !important;
    break-inside: avoid;
  }

  .page-disclaimer .clause-num {
    color: #FF6B35 !important;
  }

  .page-disclaimer .content-progress {
    display: none !important;
  }

  .page-disclaimer .section-footer-nav {
    display: none !important;
  }

  .page-disclaimer .trust-badge {
    border-top: 1px solid #DDD;
    padding-top: 16px;
    margin-top: 16px;
  }

  .page-disclaimer .section-panel {
    padding: 20px 0;
  }

  .page-disclaimer .panel-divider {
    background: #DDD;
  }

  .page-disclaimer [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ----- Reduced motion 兼容 ----- */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .page-disclaimer .clause-item,
  .page-disclaimer .footer-nav-card {
    transition: none !important;
  }

  .page-disclaimer .content-progress .progress-fill {
    transition: none;
  }
}