/* =============================================================
   about.css — 关于页特有样式（与 knauf.css 共用基础样式）
   ============================================================= */

/* ===== About Hero ===== */
.about-hero {
  position: relative;
  padding: 96px 0 72px;
  background:
    linear-gradient(135deg, rgba(0, 39, 94, .85) 0%, rgba(0, 153, 222, .7) 100%),
    radial-gradient(circle at 80% 20%, #0099de 0%, transparent 50%),
    var(--brand-deep);
  color: #fff;
  overflow: hidden;
}

.about-hero__pattern {
  position: absolute;
  inset: 0;
  opacity: .15;
  background-image:
    linear-gradient(45deg, rgba(255, 255, 255, .3) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .3) 50%, rgba(255, 255, 255, .3) 75%, transparent 75%);
  background-size: 24px 24px;
}

.about-hero__inner {
  position: relative;
  z-index: 1;
}

.about-hero__eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .15);
  border: 1px solid rgba(255, 255, 255, .25);
  font-size: 13px;
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.about-hero__title {
  font-size: 56px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.about-hero__subtitle {
  font-size: 18px;
  max-width: 640px;
  opacity: .92;
}

/* ===== About Intro (image + text) ===== */
.about-intro {
  padding: 96px 0;
}

.about-row {
  display: flex;
  gap: 64px;
  /* max-height: 500px; */
}

.about-row--reverse .about-row__media {
  order: 2;
}

.about-row__media {
  flex: 0 0 auto;
  width: 50%;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 39, 94, .08);
}

.about-row__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-row__body {
  flex: 1 1 auto;
  min-width: 0;
  padding: 8px 0;
  /* overflow-y: auto;
  overflow-x: hidden; */
}

.about-row__body-wrap+.about-row__body-wrap {
  margin-top: 30px;
}

.about-row__body::-webkit-scrollbar-button {
  display: none;
}

.about-row__body::-webkit-scrollbar {
  width: 5px;
  border-radius: 5px;
  background-color: #ddd;
}

.about-row__body .vertical-scrollbar::-webkit-scrollbar {
  height: 5px;
}

.about-row__body::-webkit-scrollbar-thumb {
  background-color: var(--brand);
  border-radius: 5px;
}

.about-row__eyebrow {
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--brand);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.about-row__title {
  font-size: 36px;
  margin-bottom: 20px;
  color: var(--text);
  font-weight: 500;
}

.about-row__text {
  color: var(--text-2);
  font-size: 16px;
}

.about-row__text>*,
.about-row__text>p {
  margin-bottom: 16px;
}

.about-row__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  color: var(--brand);
  font-weight: 600;
}

.about-row__link:hover {
  color: var(--brand-cyan);
}

.about-row__link::after {
  content: "→";
  transition: transform .2s;
}

.about-row__link:hover::after {
  transform: translateX(4px);
}

/* ===== Stats ===== */
.about-stats {
  background: var(--bg-soft);
  padding: 72px 0;
}

.about-stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.about-stat__number {
  font-size: 44px;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: -.5px;
}

.about-stat__label {
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-3);
  letter-spacing: 1px;
}

/* ===== Values / Pillars ===== */
.about-pillars {
  padding: 96px 0;
}

.section-heading {
  text-align: center;
  margin-bottom: 56px;
}

.section-heading__eyebrow {
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--brand);
  text-transform: uppercase;
}

.section-heading__title {
  font-weight: 500;
  font-size: 36px;
  margin-top: 8px;
}

.about-pillars__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pillar-card {
  padding: 32px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}

.pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 39, 94, .08);
  border-color: var(--brand-cyan);
}

.pillar-card__icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), var(--brand-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin-bottom: 20px;
}

.pillar-card__icon svg {
  width: 28px;
  height: 28px;
  fill: #fff;
}

.pillar-card__title {
  font-size: 20px;
  margin-bottom: 12px;
}

.pillar-card__text {
  color: var(--text-2);
  font-size: 15px;
}

/* ===== Local CTA / Region ===== */
.about-region {
  padding: 96px 0;
  background: var(--bg-soft);
}

/* ===== 响应式 ===== */
@media (max-width: 960px) {
  .about-hero__title {
    font-size: 40px;
  }

  .about-row {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-row--reverse .about-row__media {
    order: 0;
  }

  .about-stats__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-pillars__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .about-row {
    flex-direction: column;
    max-height: none;
  }

  .about-row__body {
    height: auto;
    overflow: visible;
    /* 恢复页面自然滚动 */
  }

  .about-row__media {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .about-hero {
    padding: 64px 0 48px;
  }

  .about-hero__title {
    font-size: 32px;
  }

  .section-heading__title,
  .about-row__title {
    font-size: 26px;
  }

  .about-stats__grid {
    grid-template-columns: 1fr;
  }
}