/* ===== 品牌概况页专属样式 ===== */
.page-about {
  --color-dark: #0a0a0a;
  --color-red: #b22222;
  --color-gold: #ffd700;
  --color-surface: #1a1a1a;
  --color-text: #ffffff;
  --color-text-secondary: #cccccc;
  --color-border: #333333;
  --color-hover-red: #ff4444;
  --gradient-red-gold: linear-gradient(135deg, #b22222, #ffd700);
  --gradient-gold-red: linear-gradient(135deg, #ffd700, #b22222);
  --color-bg-section: #111111;
  --font-heading: 'Impact', 'Arial Black', sans-serif;
  --font-body: 'Roboto Condensed', 'Segoe UI', Arial, sans-serif;
  --font-cta: 'Roboto Condensed', 'Segoe UI', Arial, sans-serif;
  --radius-card: 20px;
  --transition-speed: 0.3s;
  --page-about-skew-angle: -2deg;
}

/* ---- 英雄区 ---- */
.page-about__hero {
  position: relative;
  padding: 60px 0 50px;
  background: var(--color-bg-section);
  overflow: hidden;
}

.page-about__hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(178, 34, 34, 0.15) 0%, transparent 50%, rgba(255, 215, 0, 0.08) 100%);
  pointer-events: none;
}

.page-about__hero-inner {
  position: relative;
  z-index: 1;
}

.page-about__hero-text {
  margin-top: 32px;
}

.page-about__hero-kicker {
  display: inline-block;
  font-family: var(--font-cta);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 12px;
  border-left: 3px solid var(--color-gold);
  padding-left: 12px;
}

.page-about__hero-title {
  font-family: var(--font-heading);
  font-size: 42px;
  font-weight: 900;
  font-style: italic;
  text-transform: uppercase;
  color: var(--color-text);
  letter-spacing: -1.5px;
  line-height: 1.05;
  margin: 0 0 16px;
}

.page-about__hero-sub {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 680px;
  margin: 0;
}

/* ---- 品牌故事 ---- */
.page-about__story {
  padding: 60px 0;
  background: var(--color-dark);
}

.page-about__story-grid {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.page-about__story-text {
  order: 1;
}

.page-about__story-text p {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin: 0 0 18px;
}

.page-about__story-text .cta-button {
  margin-top: 8px;
}

.page-about__story-image {
  order: 0;
}

.page-about__rounded-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-card);
  object-fit: cover;
  display: block;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* ---- 核心服务（斜切背景） ---- */
.page-about__skew-bg {
  position: relative;
  background: var(--color-bg-section);
  transform: skewY(var(--page-about-skew-angle));
  padding: 80px 0;
  margin-top: -1px;
  margin-bottom: -1px;
}

.page-about__skew-bg > .container {
  transform: skewY(calc(-1 * var(--page-about-skew-angle)));
}

.page-about__services {
  background: linear-gradient(170deg, #111111 0%, #1a1a1a 100%);
}

.page-about__services-icons {
  text-align: center;
  margin-bottom: 40px;
}

.page-about__icon-set {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  display: inline-block;
  box-shadow: 0 0 0 3px var(--color-border), 0 0 0 6px rgba(178, 34, 34, 0.3);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.page-about__icon-set:hover {
  transform: scale(1.08);
  box-shadow: 0 0 0 3px var(--color-gold), 0 0 0 8px rgba(255, 215, 0, 0.2);
}

.page-about__services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-about__service-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 24px 28px;
  transition: transform var(--transition-speed) ease, border-color var(--transition-speed) ease;
  cursor: default;
}

.page-about__service-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-red);
}

.page-about__card-num {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 900;
  font-style: italic;
  color: rgba(178, 34, 34, 0.25);
  line-height: 1;
  margin-bottom: 8px;
  user-select: none;
}

.page-about__service-card .card-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text);
  margin: 0 0 10px;
  letter-spacing: 0.5px;
}

.page-about__service-card .card-text {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin: 0;
}

/* ---- 数据能力 ---- */
.page-about__data {
  padding: 70px 0 60px;
  background: var(--color-dark);
}

.page-about__timeline {
  overflow-x: auto;
  padding: 20px 0 30px;
  margin-bottom: 24px;
  -webkit-overflow-scrolling: touch;
}

.page-about__timeline-svg {
  display: block;
  width: 100%;
  min-width: 600px;
  height: auto;
  max-height: 100px;
}

.page-about__timeline-svg line,
.page-about__timeline-svg circle,
.page-about__timeline-svg text {
  transition: all var(--transition-speed) ease;
}

.page-about__timeline-svg circle:hover {
  fill: var(--color-gold);
  stroke: var(--color-text);
  r: 16;
}

.page-about__data-chart {
  margin-bottom: 36px;
}

.page-about__data-chart img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-card);
  object-fit: cover;
  display: block;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
}

.page-about__data-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.page-about__highlight-item {
  flex: 1 1 140px;
  max-width: 200px;
  text-align: center;
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 24px 16px;
  border: 1px solid var(--color-border);
  transition: background var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.page-about__highlight-item:hover {
  background: rgba(178, 34, 34, 0.12);
  border-color: var(--color-red);
}

.page-about__highlight-num {
  display: block;
  font-family: var(--font-heading);
  font-size: 40px;
  font-weight: 900;
  font-style: italic;
  background: var(--gradient-red-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 6px;
}

.page-about__highlight-label {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.5;
  display: block;
}

/* ---- 本土关怀 ---- */
.page-about__local {
  background: linear-gradient(170deg, #0a0a0a 0%, #111111 100%);
}

.page-about__local-content {
  max-width: 780px;
  margin: 0 auto;
}

.page-about__large-text {
  font-family: var(--font-body);
  font-size: 19px;
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-text);
  margin: 0 0 32px;
  padding: 0 4px;
}

.page-about__blockquote {
  margin: 0 0 36px;
  padding: 28px 24px;
  border-left: 4px solid var(--color-gold);
  background: rgba(255, 215, 0, 0.04);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
}

.page-about__blockquote p {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 300;
  font-style: italic;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin: 0 0 12px;
}

.page-about__blockquote cite {
  display: block;
  font-family: var(--font-cta);
  font-size: 13px;
  font-weight: 700;
  font-style: normal;
  letter-spacing: 1px;
  color: var(--color-gold);
  text-align: right;
}

.page-about__local-footer {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
}

.page-about__trust-statement {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin: 0;
  padding: 16px 20px;
  background: var(--color-surface);
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
}

.page-about__local-footer .btn {
  align-self: flex-start;
  font-family: var(--font-cta);
  font-weight: 700;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-dark);
  background: var(--gradient-gold-red);
  padding: 12px 32px;
  border-radius: 50px;
  border: none;
  text-decoration: none;
  display: inline-block;
  transition: opacity var(--transition-speed) ease, transform var(--transition-speed) ease;
}

.page-about__local-footer .btn:hover {
  opacity: 0.9;
  transform: scale(1.03);
}

/* ---- 响应式：桌面端 >= 768px ---- */
@media (min-width: 768px) {
  .page-about__hero {
    padding: 80px 0 70px;
  }

  .page-about__hero-kicker {
    font-size: 14px;
    letter-spacing: 6px;
    margin-bottom: 16px;
    padding-left: 16px;
  }

  .page-about__hero-title {
    font-size: 68px;
    letter-spacing: -2px;
  }

  .page-about__hero-sub {
    font-size: 18px;
    max-width: 600px;
  }

  .page-about__story {
    padding: 80px 0;
  }

  .page-about__story-grid {
    flex-direction: row;
    align-items: center;
    gap: 60px;
  }

  .page-about__story-text {
    order: 0;
    flex: 1 1 50%;
  }

  .page-about__story-image {
    order: 1;
    flex: 1 1 40%;
  }

  .page-about__story-text p {
    font-size: 16px;
  }

  .page-about__services-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

  .page-about__service-card {
    padding: 36px 28px 32px;
  }

  .page-about__card-num {
    font-size: 40px;
  }

  .page-about__service-card .card-title {
    font-size: 20px;
  }

  .page-about__data {
    padding: 90px 0 80px;
  }

  .page-about__timeline {
    padding: 30px 0 40px;
    margin-bottom: 32px;
  }

  .page-about__data-highlights {
    gap: 28px;
  }

  .page-about__highlight-item {
    flex: 1 1 180px;
    max-width: 220px;
    padding: 28px 20px;
  }

  .page-about__highlight-num {
    font-size: 48px;
  }

  .page-about__large-text {
    font-size: 22px;
    margin-bottom: 40px;
  }

  .page-about__blockquote {
    padding: 36px 40px;
    margin-bottom: 44px;
  }

  .page-about__blockquote p {
    font-size: 20px;
  }

  .page-about__local-footer {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-about__trust-statement {
    flex: 1;
    margin-right: 30px;
    font-size: 14px;
  }

  .page-about__local-footer .btn {
    flex-shrink: 0;
  }
}

@media (min-width: 1024px) {
  .page-about__hero-title {
    font-size: 84px;
  }

  .page-about__story-grid {
    gap: 80px;
  }

  .page-about__services-grid {
    gap: 36px;
  }

  .page-about__data-highlights {
    gap: 36px;
  }
}