/* ===== 品牌档案页专属样式 (page-about) ===== */
.page-about {
  --ab-border: var(--border-width, 4px);
  --ab-shadow: var(--shadow, 0 4px 12px rgba(0,0,0,0.12));
  --ab-radius: 0;
  display: block;
  width: 100%;
  background: var(--color-bg, #F5F0E0);
  color: var(--color-text, #4A4A4A);
  font-family: var(--font-body, 'Inter', sans-serif);
  line-height: 1.6;
}
/* ---- 左右分屏容器 ---- */
.page-about__split {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  width: 100%;
}
/* ---- 左侧品牌叙事区 ---- */
.page-about__aside {
  position: relative;
  width: 100%;
  background: var(--color-secondary, #1A2B4C);
  color: #fff;
  overflow: hidden;
  border-bottom: var(--ab-border) solid var(--color-primary, #FF6B35);
}
.page-about__aside-inner {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.5rem 1rem;
  min-height: 50vh;
  position: relative;
  z-index: 1;
}
.page-about__brand-label {
  font-family: var(--font-heading, 'Oswald', sans-serif);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent, #FFD700);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid rgba(255,255,255,0.15);
  align-self: flex-start;
}
/* ---- 装饰关键词 ---- */
.page-about__decorative-words {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin: 2rem 0 1.5rem;
  justify-content: center;
}
.page-about__word {
  font-family: var(--font-heading, 'Oswald', sans-serif);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.1;
  display: inline-block;
  transform: skewX(calc(var(--word-index, 0) * 3deg - 8deg));
  transition: all 0.35s ease;
  will-change: transform, opacity;
  text-shadow: 2px 2px 0 rgba(0,0,0,0.2);
  letter-spacing: 0.02em;
}
.page-about__word:nth-child(1) { color: var(--color-primary, #FF6B35); font-size: 2.8rem; }
.page-about__word:nth-child(2) { color: var(--color-accent, #FFD700); font-size: 2.2rem; transform: skewX(6deg); }
.page-about__word:nth-child(3) { color: #6B8E4E; font-size: 2.6rem; transform: skewX(-12deg); }
.page-about__word:nth-child(4) { color: var(--color-primary, #FF6B35); font-size: 3rem; transform: skewX(10deg); opacity: 0.85; }
.page-about__word:nth-child(5) { color: #C04E3A; font-size: 2rem; transform: skewX(-4deg); }

.page-about__word:hover {
  opacity: 1 !important;
  transform: skewX(0deg) scale(1.08);
  text-shadow: 4px 4px 0 rgba(0,0,0,0.3);
}
/* ---- 左侧底部图片 ---- */
.page-about__aside-figure {
  margin-top: auto;
  width: 100%;
  max-height: 35vh;
  overflow: hidden;
  border-top: 2px solid rgba(255,255,255,0.1);
}
.page-about__aside-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 35vh;
  object-fit: cover;
  object-position: center 20%;
  opacity: 0.7;
  transition: opacity 0.4s;
}
.page-about__aside-figure img:hover { opacity: 1; }

/* ---- 右侧主要内容区 ---- */
.page-about__main {
  width: 100%;
  padding: 1.5rem 1rem 3rem;
  background: var(--color-bg, #F5F0E0);
}
/* ---- 面包屑 ---- */
.page-about__breadcrumb {
  font-size: 0.85rem;
  color: var(--color-border, #8B8680);
  margin-bottom: 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 0.5rem;
}
.page-about__breadcrumb a {
  color: var(--color-primary, #FF6B35);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.page-about__breadcrumb a:hover { border-color: currentColor; }
.page-about__sep { color: var(--color-border, #8B8680); font-weight: 300; }

/* ---- 英雄区 ---- */
.page-about__hero {
  margin-bottom: 2.5rem;
  border: var(--ab-border) solid var(--color-secondary, #1A2B4C);
  box-shadow: var(--ab-shadow);
  background: #fff;
}
.page-about__hero-image {
  width: 100%;
  overflow: hidden;
  border-bottom: 2px solid var(--color-secondary, #1A2B4C);
}
.page-about__hero-image img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  max-height: 40vh;
}
.page-about__hero-title {
  font-family: var(--font-heading, 'Oswald', sans-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-secondary, #1A2B4C);
  margin: 1rem 1rem 0.3rem;
  line-height: 1.15;
  letter-spacing: 0.01em;
}
.page-about__hero-sub {
  font-size: 1rem;
  color: var(--color-text, #4A4A4A);
  margin: 0 1rem 1.25rem;
  line-height: 1.5;
  border-left: 4px solid var(--color-primary, #FF6B35);
  padding-left: 0.75rem;
}

/* ---- 章节通用 ---- */
.page-about__section {
  margin-bottom: 2.5rem;
  padding: 1.5rem 1rem;
  background: #fff;
  border: var(--ab-border) solid var(--color-border, #8B8680);
  box-shadow: var(--ab-shadow);
  position: relative;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.page-about__section[data-section]:hover {
  border-color: var(--color-primary, #FF6B35);
  box-shadow: 0 6px 20px rgba(0,0,0,0.18);
}
.page-about__section-heading {
  font-family: var(--font-heading, 'Oswald', sans-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-secondary, #1A2B4C);
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--color-primary, #FF6B35);
  display: inline-block;
  letter-spacing: 0.02em;
}
.page-about__section-body p {
  margin: 0 0 1rem;
  font-size: 1rem;
  line-height: 1.7;
}
.page-about__section-body .btn {
  margin-top: 0.5rem;
}

/* ---- 服务范围网格 ---- */
.page-about__scope-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.page-about__scope-card {
  padding: 1.25rem;
  background: var(--color-bg, #F5F0E0);
  border: 2px solid var(--color-border, #8B8680);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: transform 0.25s, box-shadow 0.25s;
}
.page-about__scope-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.page-about__card-title {
  font-family: var(--font-heading, 'Oswald', sans-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-secondary, #1A2B4C);
  margin: 0 0 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.page-about__card-title::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--color-primary, #FF6B35);
  transform: rotate(45deg);
  flex-shrink: 0;
}
.page-about__scope-card p {
  font-size: 0.95rem;
  margin: 0;
  line-height: 1.6;
  color: var(--color-text, #4A4A4A);
}
/* 服务范围配图 */
.page-about__scope-image {
  margin-top: 0.5rem;
  border: 2px solid var(--color-secondary, #1A2B4C);
  overflow: hidden;
}
.page-about__scope-image img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  max-height: 240px;
}

/* ---- 信任声明 ---- */
.page-about .trust-statement {
  margin: 2rem 0 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--color-secondary, #1A2B4C);
  color: #f0ede5;
  font-size: 0.9rem;
  border-left: 6px solid var(--color-accent, #FFD700);
  line-height: 1.6;
}
.page-about .trust-statement p { margin: 0; }

/* ---- 内部链接导航 ---- */
.page-about__internal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-top: 0.5rem;
  border-top: 2px solid var(--color-border, #8B8680);
}
.page-about__internal-links .btn {
  flex: 1 1 auto;
  min-width: 120px;
  text-align: center;
  font-size: 0.95rem;
  padding: 0.6rem 1.2rem;
}

/* ===== 桌面端 (≥768px) ===== */
@media (min-width: 768px) {
  .page-about__split {
    flex-direction: row;
    align-items: flex-start;
  }
  /* 左侧固定30% */
  .page-about__aside {
    position: sticky;
    top: 0;
    width: 30%;
    min-width: 280px;
    min-height: 100vh;
    border-bottom: none;
    border-right: var(--ab-border) solid var(--color-primary, #FF6B35);
  }
  .page-about__aside-inner {
    padding: 2rem 1.5rem;
    min-height: 100vh;
    justify-content: flex-start;
  }
  .page-about__brand-label {
    font-size: 1.4rem;
    margin-bottom: 1rem;
  }
  .page-about__decorative-words {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
    margin: 2.5rem 0 3rem;
  }
  .page-about__word {
    font-size: 3.2rem !important;
    line-height: 1.2;
  }
  .page-about__word:nth-child(1) { font-size: 3.8rem !important; }
  .page-about__word:nth-child(2) { font-size: 3rem !important; }
  .page-about__word:nth-child(3) { font-size: 3.4rem !important; }
  .page-about__word:nth-child(4) { font-size: 4rem !important; }
  .page-about__word:nth-child(5) { font-size: 2.6rem !important; }
  
  .page-about__aside-figure {
    max-height: 30vh;
    margin-top: auto;
    padding-top: 1rem;
  }
  .page-about__aside-figure img {
    max-height: 30vh;
    opacity: 0.6;
  }

  /* 右侧70%滚动 */
  .page-about__main {
    width: 70%;
    padding: 2rem 2.5rem 4rem;
  }
  .page-about__breadcrumb {
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
  }
  .page-about__hero-title {
    font-size: 3rem;
    margin: 1.5rem 1.5rem 0.3rem;
  }
  .page-about__hero-sub {
    font-size: 1.1rem;
    margin: 0 1.5rem 1.5rem;
  }
  .page-about__section {
    padding: 2rem 1.5rem;
    margin-bottom: 3rem;
  }
  .page-about__section-heading {
    font-size: 1.8rem;
  }
  .page-about__scope-grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.25rem;
  }
  .page-about__scope-image {
    margin-top: 1.5rem;
  }
  .page-about__internal-links {
    gap: 1rem;
  }
  .page-about__internal-links .btn {
    flex: 0 1 auto;
    padding: 0.7rem 1.8rem;
  }
}

/* ===== 大桌面端 (≥1200px) ===== */
@media (min-width: 1200px) {
  .page-about__aside-inner {
    padding: 2.5rem 2rem;
  }
  .page-about__word {
    font-size: 3.6rem !important;
  }
  .page-about__word:nth-child(1) { font-size: 4.2rem !important; }
  .page-about__word:nth-child(2) { font-size: 3.4rem !important; }
  .page-about__word:nth-child(3) { font-size: 3.8rem !important; }
  .page-about__word:nth-child(4) { font-size: 4.6rem !important; }
  .page-about__word:nth-child(5) { font-size: 3rem !important; }
  
  .page-about__main {
    padding: 2.5rem 3.5rem 5rem;
  }
  .page-about__hero-title {
    font-size: 3.6rem;
  }
  .page-about__section {
    padding: 2.5rem 2rem;
  }
  .page-about__section-heading {
    font-size: 2rem;
  }
}

.page-about {
  --word-index: inherit;
}