.page-disclaimer {
  --df-content-max: 900px;
  --df-section-pad: clamp(56px, 9vw, 96px);
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.8;
  overflow-x: hidden;
}

.page-disclaimer *,
.page-disclaimer *::before,
.page-disclaimer *::after {
  box-sizing: border-box;
}

/* ---- Hero ---- */
.df-hero {
  position: relative;
  background: var(--deep-blue);
  color: var(--text-dark);
}

.df-hero__banner {
  position: relative;
  line-height: 0;
  overflow: hidden;
}

.df-hero__banner::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--orange));
}

.df-hero__img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 300px;
  object-fit: cover;
  filter: saturate(0.9);
}

.df-hero__content {
  position: relative;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.df-hero__content::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 180px;
  height: 180px;
  background: linear-gradient(135deg, transparent 49%, rgba(212, 175, 55, 0.14) 50%);
  pointer-events: none;
}

.df-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 14px;
  color: rgba(245, 240, 230, 0.6);
}

.df-breadcrumb a {
  color: rgba(245, 240, 230, 0.72);
  text-decoration: none;
  transition: color 0.2s ease;
}

.df-breadcrumb a:hover {
  color: var(--gold);
}

.df-breadcrumb [aria-current="page"] {
  color: var(--gold);
  font-weight: 600;
}

.df-hero__kicker {
  color: var(--gold);
  margin-bottom: 10px;
  letter-spacing: 0.1em;
}

.df-hero__title {
  font-family: "Source Han Sans CN", "Noto Sans SC", sans-serif;
  font-weight: 900;
  font-size: clamp(30px, 6vw, 44px);
  line-height: 1.18;
  margin: 0 0 16px;
  color: var(--white);
  max-width: 720px;
}

.df-hero__lead {
  font-size: clamp(16px, 2vw, 18px);
  line-height: 1.7;
  color: var(--text-dark-muted);
  max-width: 640px;
  margin: 0;
}

.df-hero__meta {
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(245, 240, 230, 0.5);
}

/* ---- Rail / 章节导航 ---- */
.df-rail {
  position: relative;
  z-index: 30;
  display: flex;
  gap: 8px;
  padding: 14px 20px;
  background: rgba(245, 240, 230, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(10, 25, 47, 0.08);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.df-rail::-webkit-scrollbar {
  display: none;
}

.df-rail__pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: var(--white);
  border: 1px solid rgba(10, 25, 47, 0.12);
  box-shadow: 0 2px 8px rgba(10, 25, 47, 0.05);
  color: var(--deep-blue);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.df-rail__pill:hover {
  background: var(--deep-blue);
  color: var(--text-dark);
  box-shadow: 0 6px 16px rgba(10, 25, 47, 0.18);
}

.df-rail__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  font-weight: 700;
}

/* ---- Body / 章节 ---- */
.df-body {
  max-width: var(--content-width);
  margin: 0 auto;
}

.df-section {
  padding: var(--df-section-pad) 20px;
}

.df-section__inner {
  max-width: var(--df-content-max);
  margin: 0 auto;
}

.df-section__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 32px;
}

.df-section__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 800;
  line-height: 1;
  color: var(--gold);
  background: var(--deep-blue);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.df-section__kicker {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--stone);
  margin: 0 0 6px;
}

.df-section__title {
  font-family: "Source Han Sans CN", "Noto Sans SC", sans-serif;
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 32px);
  margin: 0;
  color: var(--ink);
}

.df-paragraph {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.85;
}

.df-section a {
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

.df-section a:hover {
  color: var(--deep-blue);
}

/* 数据卡片 */
.df-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 32px 0;
}

.df-stat {
  background: var(--white);
  border: 1px solid rgba(10, 25, 47, 0.08);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  padding: 20px 16px;
  text-align: center;
}

.df-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 800;
  color: var(--deep-blue);
  line-height: 1.2;
}

.df-stat__label {
  display: block;
  font-size: 12px;
  color: var(--stone);
  margin-top: 8px;
}

/* 提示块 */
.df-note {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 20px 22px;
  background: rgba(122, 139, 111, 0.12);
  border-left: 4px solid var(--moss);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 28px 0 0;
}

.df-note__mark {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--moss);
  color: var(--white);
  font-weight: 900;
  font-size: 15px;
  line-height: 1;
}

.df-note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

/* ---- 深色章节 ---- */
.df-section--dark {
  background: var(--deep-blue);
  color: var(--text-dark);
}

.df-section--dark .df-section__no {
  background: var(--gold);
  color: var(--deep-blue);
}

.df-section--dark .df-section__kicker {
  color: rgba(245, 240, 230, 0.55);
}

.df-section--dark .df-section__title {
  color: var(--text-dark);
}

.df-section--dark .df-paragraph {
  color: var(--text-dark);
}

.df-section--dark a {
  color: var(--gold);
}

.df-section--dark a:hover {
  color: var(--white);
}

.df-list {
  margin: 28px 0;
  padding: 0;
  list-style: none;
}

.df-list li {
  position: relative;
  padding: 12px 0 12px 34px;
  border-bottom: 1px solid rgba(245, 240, 230, 0.1);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-dark);
}

.df-list li:last-child {
  border-bottom: none;
}

.df-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 22px;
  width: 14px;
  height: 14px;
  border: 3px solid var(--gold);
  border-radius: 3px;
  transform: rotate(45deg);
}

/* 引用块 */
.df-quote {
  margin: 28px 0;
  padding: 24px 28px;
  background: var(--deep-blue);
  color: var(--text-dark);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--gold);
  font-size: 16px;
  line-height: 1.85;
}

.df-quote p {
  margin: 0;
}

/* ---- 联系卡片 ---- */
.df-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 32px 0;
}

.df-contact-card {
  background: var(--white);
  border: 1px solid rgba(10, 25, 47, 0.06);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 28px 20px 24px;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.df-contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.df-contact-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--deep-blue);
  color: var(--gold);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
}

.df-contact-card__label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: 8px;
}

.df-contact-card__value {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin: 0;
  word-break: break-word;
}

/* 页尾收束 */
.df-closing {
  margin-top: 36px;
  padding: 24px 20px 0;
  border-top: 1px solid rgba(10, 25, 47, 0.1);
  text-align: center;
  font-size: 14px;
  color: var(--stone);
}

.df-closing p {
  margin: 6px 0;
}

.df-closing a {
  color: var(--orange);
}

/* ---- 平板 ---- */
@media (min-width: 640px) {
  .df-stats {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .df-section {
    padding: var(--df-section-pad) 32px;
  }

  .df-hero__content {
    padding: 40px 32px 56px;
  }
}

/* ---- 桌面 ---- */
@media (min-width: 1024px) {
  .df-hero__content {
    padding: 56px 32px 72px;
  }

  .df-section__head {
    margin-bottom: 40px;
  }

  .df-section__no {
    font-size: 40px;
    padding: 12px 16px;
  }

  .df-hero__title {
    font-size: 44px;
  }
}