/* ===== 页面专属：page-about ===== */
.page-about {
  --about-red: #e63946;
  --about-gold: #f4a261;
  --about-black: #1a1a1a;
  --about-dark: #2b1b0e;
  --about-white: #f8f9fa;
  --about-cream: #f5ebe0;
  --about-gray: #333;
  --about-muted: #bbb;
  --about-grad-hero: linear-gradient(135deg, #1a1a1a 0%, #2b1b0e 60%, #e63946 100%);
  --about-grad-title: linear-gradient(135deg, #f8f9fa 0%, #e63946 80%);
  --about-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);

  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--about-black);
  color: var(--about-white);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1.5;
}

/* 面包屑 */
.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1.25rem 1.5rem 0;
  font-size: 0.85rem;
  color: var(--about-muted);
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}
.page-about .breadcrumb a {
  color: var(--about-gold);
  text-decoration: none;
  transition: color 0.2s;
}
.page-about .breadcrumb a:hover {
  color: var(--about-red);
}
.page-about .breadcrumb .sep {
  color: #555;
}

/* ===== HERO 左右分屏 ===== */
.page-about .about-hero {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 2rem 1.5rem 3rem;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
  position: relative;
}

.page-about .about-hero__left {
  flex: 1 1 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  z-index: 2;
}

.page-about .about-hero__title {
  margin: 0 0 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.page-about .about-hero__subline {
  font-size: clamp(0.9rem, 2vw, 1.25rem);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--about-gold);
  font-style: italic;
}

.page-about .about-hero__mainline {
  font-size: clamp(2.8rem, 8vw, 6rem);
  font-weight: 800;
  font-style: italic;
  line-height: 1.05;
  background: var(--about-grad-title);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.page-about .about-hero__tagline {
  font-size: clamp(1.1rem, 2.2vw, 1.6rem);
  font-weight: 600;
  color: var(--about-white);
  margin: 0.5rem 0 0.75rem;
  line-height: 1.3;
  max-width: 32rem;
}

.page-about .about-hero__desc {
  font-size: 1rem;
  color: #ccc;
  max-width: 34rem;
  margin: 0 0 1.5rem;
  line-height: 1.7;
}

.page-about .about-hero__desc strong {
  color: var(--about-red);
  font-weight: 700;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.page-about .about-hero__actions .button {
  padding: 0.7rem 2rem;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: 0;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s;
  background: var(--about-red);
  color: var(--about-white);
}
.page-about .about-hero__actions .button:hover {
  background: #c1121f;
  transform: translateY(-2px);
  box-shadow: var(--about-shadow);
}
.page-about .about-hero__actions .button--secondary {
  background: transparent;
  border: 2px solid var(--about-gold);
  color: var(--about-gold);
}
.page-about .about-hero__actions .button--secondary:hover {
  background: var(--about-gold);
  color: var(--about-black);
  border-color: var(--about-gold);
}

/* 右侧图片 & 纹理 */
.page-about .about-hero__right {
  flex: 1 1 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2rem;
  min-height: 280px;
  overflow: hidden;
}

.page-about .about-hero__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: 450px;
  object-fit: cover;
  object-position: center;
  border-radius: 0;
  box-shadow: var(--about-shadow);
  position: relative;
  z-index: 1;
  display: block;
}

.page-about .about-hero__texture {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 12px,
    rgba(230, 57, 70, 0.08) 12px,
    rgba(244, 162, 97, 0.05) 24px
  );
  z-index: 0;
  pointer-events: none;
  mix-blend-mode: overlay;
}

/* ===== 服务承诺 ===== */
.page-about .about-commitment {
  padding: 3rem 1.5rem;
  max-width: 1280px;
  width: 100%;
  box-sizing: border-box;
  margin: 0 auto;
}

.page-about .about-commitment__heading {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  font-style: italic;
  margin: 0 0 2rem;
  color: var(--about-white);
  position: relative;
  display: inline-block;
}
.page-about .about-commitment__heading::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 80px;
  height: 4px;
  background: var(--about-red);
  border-radius: 2px;
}

.page-about .about-commitment__grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-about .about-commitment__item {
  background: rgba(51, 51, 51, 0.6);
  padding: 1.75rem 1.5rem;
  transition: all 0.3s;
  border-left: 4px solid var(--about-red);
  backdrop-filter: blur(4px);
}
.page-about .about-commitment__item:hover {
  background: rgba(51, 51, 51, 0.9);
  transform: translateX(6px);
  box-shadow: var(--about-shadow);
}

.page-about .about-commitment__icon {
  color: var(--about-gold);
  margin-bottom: 0.75rem;
  width: 48px;
  height: 48px;
}

.page-about .about-commitment__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--about-white);
}

.page-about .about-commitment__item p {
  font-size: 0.95rem;
  color: #ccc;
  margin: 0;
  line-height: 1.6;
}

/* ===== 合规与备案 ===== */
.page-about .about-compliance {
  padding: 3rem 1.5rem;
  max-width: 1280px;
  width: 100%;
  box-sizing: border-box;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.page-about .about-compliance__inner {
  flex: 1;
}

.page-about .about-compliance__heading {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  font-style: italic;
  margin: 0 0 1rem;
  color: var(--about-white);
  position: relative;
  display: inline-block;
}
.page-about .about-compliance__heading::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 80px;
  height: 4px;
  background: var(--about-red);
  border-radius: 2px;
}

.page-about .about-compliance__text {
  font-size: 1.05rem;
  color: #ccc;
  max-width: 36rem;
  margin: 0 0 1.25rem;
  line-height: 1.7;
}
.page-about .about-compliance__text strong {
  color: var(--about-gold);
  font-weight: 700;
}

.page-about .about-compliance__badge {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: flex-start;
}

.page-about .about-compliance__icp {
  display: inline-block;
  padding: 0.6rem 1.6rem;
  font-size: 1.05rem;
  font-weight: 700;
  font-family: 'DIN Condensed', 'Inter', sans-serif;
  letter-spacing: 0.05em;
  background: var(--about-dark);
  color: var(--about-gold);
  border: 2px solid var(--about-gold);
  cursor: pointer;
  transition: all 0.25s;
  user-select: none;
}
.page-about .about-compliance__icp:hover,
.page-about .about-compliance__icp:focus-visible {
  background: var(--about-gold);
  color: var(--about-black);
  outline: none;
}

.page-about .about-compliance__details {
  background: rgba(51, 51, 51, 0.8);
  padding: 1rem 1.5rem;
  border-left: 4px solid var(--about-gold);
  font-size: 0.9rem;
  color: #ddd;
  max-width: 24rem;
  backdrop-filter: blur(4px);
}
.page-about .about-compliance__details p {
  margin: 0.25rem 0;
}

.page-about .about-compliance__decor {
  flex: 0 0 auto;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.page-about .about-compliance__img {
  width: 100%;
  max-width: 400px;
  height: auto;
  object-fit: contain;
  opacity: 0.7;
  transition: opacity 0.3s;
}
.page-about .about-compliance__img:hover {
  opacity: 1;
}

/* ===== 品牌标识 ===== */
.page-about .about-brandmark {
  padding: 2rem 1.5rem 3rem;
  max-width: 1280px;
  width: 100%;
  box-sizing: border-box;
  margin: 0 auto;
  text-align: center;
}

.page-about .about-brandmark__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.page-about .about-brandmark__logo {
  width: 120px;
  max-width: 200px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(230, 57, 70, 0.3));
  transition: transform 0.3s;
}
.page-about .about-brandmark__logo:hover {
  transform: scale(1.04);
}

.page-about .about-brandmark__slogan {
  font-size: clamp(1.1rem, 2.2vw, 1.6rem);
  font-weight: 700;
  font-style: italic;
  color: var(--about-gold);
  letter-spacing: 0.04em;
  margin: 0;
}

/* ===== 联系方式摘要 ===== */
.page-about .about-contact {
  padding: 2.5rem 1.5rem 4rem;
  max-width: 1280px;
  width: 100%;
  box-sizing: border-box;
  margin: 0 auto;
  text-align: center;
}

.page-about .about-contact__heading {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  font-style: italic;
  margin: 0 0 1.5rem;
  color: var(--about-white);
  position: relative;
  display: inline-block;
}
.page-about .about-contact__heading::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--about-red);
  border-radius: 2px;
}

.page-about .about-contact__grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 36rem;
  margin: 0 auto 1.5rem;
  text-align: left;
}

.page-about .about-contact__item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.75rem 1rem;
  background: rgba(51, 51, 51, 0.4);
  border-left: 3px solid var(--about-gold);
}

.page-about .about-contact__label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--about-gold);
}

.page-about .about-contact__link {
  font-size: 1rem;
  color: var(--about-white);
  text-decoration: none;
  transition: color 0.2s;
}
.page-about .about-contact__link:hover {
  color: var(--about-red);
}

.page-about .about-contact__value {
  font-size: 1rem;
  color: #ddd;
}

.page-about .about-contact__note {
  font-size: 0.85rem;
  color: #888;
  max-width: 36rem;
  margin: 0 auto 1.5rem;
  line-height: 1.5;
}

.page-about .about-contact .button {
  padding: 0.7rem 2.4rem;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  background: var(--about-red);
  color: var(--about-white);
  text-decoration: none;
  display: inline-block;
  transition: all 0.25s;
  cursor: pointer;
}
.page-about .about-contact .button:hover {
  background: #c1121f;
  transform: translateY(-2px);
  box-shadow: var(--about-shadow);
}

/* ===== 滚动显现 ===== */
.page-about .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.page-about .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 桌面端媒体查询 ===== */
@media (min-width: 768px) {
  .page-about .about-hero {
    flex-direction: row;
    padding: 3rem 2rem 4rem;
    gap: 3rem;
    align-items: center;
  }
  .page-about .about-hero__left {
    flex: 0 0 52%;
  }
  .page-about .about-hero__right {
    flex: 0 0 42%;
    margin-top: 0;
    min-height: 380px;
  }
  .page-about .about-hero__img {
    max-height: 500px;
  }

  .page-about .about-commitment__grid {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1.5rem;
  }
  .page-about .about-commitment__item {
    flex: 1 1 calc(33.333% - 1rem);
    min-width: 220px;
  }

  .page-about .about-compliance {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
  }
  .page-about .about-compliance__inner {
    flex: 1;
  }
  .page-about .about-compliance__decor {
    flex: 0 0 240px;
  }

  .page-about .about-contact__grid {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
  }
  .page-about .about-contact__item {
    flex: 0 0 auto;
    min-width: 180px;
  }

  .page-about .about-brandmark__logo {
    width: 160px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 4rem 2rem 5rem;
  }
  .page-about .about-hero__left {
    flex: 0 0 50%;
  }
  .page-about .about-hero__right {
    flex: 0 0 44%;
  }
}

/* ===== reduced-motion ===== */
@media (prefers-reduced-motion: reduce) {
  .page-about .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-about .about-commitment__item:hover {
    transform: none;
  }
  .page-about .about-hero__actions .button:hover {
    transform: none;
  }
  .page-about .about-contact .button:hover {
    transform: none;
  }
  .page-about .about-brandmark__logo:hover {
    transform: none;
  }
}