/* ===== 品牌介绍页专属样式 .page-about ===== */
.page-about {
  --about-slash-color: rgba(178, 34, 34, 0.12);
  --about-gold-border: #C9A96E;
  --about-card-bg: #FFFFFF;
  --about-bg-alt: #F5F5F5;
  --about-number-size: clamp(3rem, 8vw, 4.5rem);
}

/* 容器继承全局 .container 已完成，无需重复定义 */

/* 面包屑 */
.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 24px 0 16px;
  font-size: var(--small-size, 0.8125rem);
  line-height: var(--small-line, 1.5);
  color: var(--color-gray, #888888);
}

.page-about .breadcrumb__link {
  color: var(--color-gray, #888888);
  text-decoration: none;
  transition: color var(--transition, 0.3s ease);
}

.page-about .breadcrumb__link:hover,
.page-about .breadcrumb__link:focus-visible {
  color: var(--color-gold, #C9A96E);
}

.page-about .breadcrumb__sep {
  margin: 0 2px;
  user-select: none;
}

.page-about .breadcrumb__current {
  color: var(--color-white, #FFFFFF);
  font-weight: 500;
}

/* ===== 首屏：非对称杂志布局 ===== */
.page-about .about-hero {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 32px 0 64px;
  overflow: hidden;
}

@media (min-width: 768px) {
  .page-about .about-hero {
    grid-template-columns: 200px 1fr;
    gap: 48px;
    padding: 48px 0 80px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    grid-template-columns: 240px 1fr;
    gap: 64px;
    padding: 64px 0 96px;
  }
}

/* 斜线切割背景 */
.page-about .about-hero__slash {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    135deg,
    transparent 40%,
    var(--about-slash-color) 40.5%,
    var(--about-slash-color) 60%,
    transparent 60.5%
  );
  pointer-events: none;
  z-index: 0;
}

@media (max-width: 767px) {
  .page-about .about-hero__slash {
    width: 100%;
    height: 40%;
    top: auto;
    bottom: 0;
    background: linear-gradient(
      135deg,
      transparent 30%,
      var(--about-slash-color) 30.5%,
      var(--about-slash-color) 70%,
      transparent 70.5%
    );
  }
}

/* 左侧窄栏：品牌标志 + slogan */
.page-about .about-hero__aside {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
}

.page-about .about-hero__emblem {
  width: 120px;
  height: auto;
  max-width: 100%;
  object-fit: contain;
  border-radius: var(--radius-md, 8px);
  transition: transform 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
}

@media (min-width: 768px) {
  .page-about .about-hero__emblem {
    width: 200px;
  }
}

/* 滚动时品牌图标轻微旋转（通过 data-reveal-visible 类驱动） */
.page-about .about-hero__emblem[data-reveal-visible="true"] {
  animation: about-emblem-spin 0.8s ease-out forwards;
}

@keyframes about-emblem-spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(8deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero__emblem[data-reveal-visible="true"] {
    animation: none;
  }
}

.page-about .about-hero__slogan {
  font-family: var(--font-heading, Inter, 'Noto Sans SC', sans-serif);
  font-size: clamp(1.2rem, 3vw, 1.75rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-gold, #C9A96E);
  letter-spacing: 0.02em;
  margin: 0;
}

/* 右侧宽内容区 */
.page-about .about-hero__main {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__title {
  font-family: var(--font-heading, Inter, 'Noto Sans SC', sans-serif);
  font-size: var(--h1-size, clamp(2.4rem, 6vw, 3.5rem));
  line-height: var(--h1-line, 1.1);
  font-weight: 800;
  color: var(--color-primary, #B22222);
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.page-about .about-hero__lead {
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.7;
  color: var(--color-white, #FFFFFF);
  max-width: 640px;
  margin: 0 0 32px;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ===== 品牌概述 ===== */
.page-about .about-overview {
  padding: 48px 0;
}

@media (min-width: 768px) {
  .page-about .about-overview {
    padding: 64px 0;
  }
}

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

@media (min-width: 768px) {
  .page-about .about-overview__inner {
    grid-template-columns: 120px 1fr;
    gap: 48px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-overview__inner {
    grid-template-columns: 160px 1fr;
    gap: 64px;
  }
}

.page-about .about-overview__label {
  padding-top: 4px;
}

.page-about .about-overview__content {
  max-width: 720px;
}

.page-about .about-overview__content p {
  margin: 0 0 16px;
  font-size: var(--body-size, 1rem);
  line-height: var(--body-line, 1.6);
  color: var(--color-white, #FFFFFF);
}

.page-about .about-overview__content p:last-child {
  margin-bottom: 0;
}

/* ===== 核心价值 ===== */
.page-about .about-value {
  padding: 48px 0;
}

@media (min-width: 768px) {
  .page-about .about-value {
    padding: 64px 0;
  }
}

.page-about .about-value__header {
  margin-bottom: 40px;
}

.page-about .about-value__header .section__title {
  margin-top: 12px;
}

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

@media (min-width: 600px) {
  .page-about .about-value__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-about .about-value__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-about .about-value__item {
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-about .about-value__number {
  font-family: var(--font-heading, Inter, 'Noto Sans SC', sans-serif);
  font-size: var(--about-number-size);
  font-weight: 800;
  line-height: 1;
  color: var(--color-primary, #B22222);
  margin-bottom: 4px;
}

.page-about .about-value__icon-wrap {
  width: 100%;
  margin-bottom: 4px;
}

.page-about .about-value__chart {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm, 4px);
  object-fit: cover;
}

.page-about .about-value__item .card__title {
  font-family: var(--font-heading, Inter, 'Noto Sans SC', sans-serif);
  font-size: var(--h3-size, clamp(1.4rem, 3vw, 1.75rem));
  line-height: var(--h3-line, 1.3);
  font-weight: 600;
  color: var(--color-bg, #1A1A1A);
  margin: 0;
}

.page-about .about-value__item .card__text {
  font-size: var(--body-size, 1rem);
  line-height: var(--body-line, 1.6);
  color: #444;
  margin: 0;
}

/* ===== 行业使命 ===== */
.page-about .about-mission {
  padding: 48px 0;
}

@media (min-width: 768px) {
  .page-about .about-mission {
    padding: 64px 0;
  }
}

.page-about .about-mission__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

@media (min-width: 768px) {
  .page-about .about-mission__inner {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }
}

.page-about .about-mission__text p {
  margin: 0 0 16px;
  font-size: var(--body-size, 1rem);
  line-height: var(--body-line, 1.6);
  color: var(--color-white, #FFFFFF);
}

.page-about .about-mission__text p:last-child {
  margin-bottom: 0;
}

.page-about .about-mission__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-about .about-mission__shape {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(178, 34, 34, 0.25), rgba(26, 26, 26, 0.8));
  border: 2px solid var(--about-gold-border);
  position: relative;
}

.page-about .about-mission__shape::after {
  content: "";
  position: absolute;
  inset: 16px;
  border-radius: 50%;
  border: 1px dashed var(--about-gold-border);
  opacity: 0.4;
}

@media (max-width: 767px) {
  .page-about .about-mission__shape {
    width: 160px;
    height: 160px;
  }
  .page-about .about-mission__shape::after {
    inset: 12px;
  }
}

/* ===== 联系我们 ===== */
.page-about .about-contact {
  padding: 48px 0 80px;
}

@media (min-width: 768px) {
  .page-about .about-contact {
    padding: 64px 0 96px;
  }
}

.page-about .about-contact__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

@media (min-width: 768px) {
  .page-about .about-contact__inner {
    grid-template-columns: 1fr 280px;
    gap: 48px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-contact__inner {
    grid-template-columns: 1fr 320px;
    gap: 64px;
  }
}

.page-about .about-contact__note {
  font-size: var(--body-size, 1rem);
  line-height: var(--body-line, 1.6);
  color: var(--color-gray, #888888);
  margin: 12px 0 24px;
  max-width: 540px;
}

.page-about .about-contact__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-about .about-contact__item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--about-card-bg);
  border-radius: var(--radius-md, 8px);
  border: 1px solid rgba(0,0,0,0.06);
  cursor: pointer;
  transition: box-shadow var(--transition, 0.3s ease), transform var(--transition, 0.3s ease);
  max-width: 420px;
  position: relative;
}

.page-about .about-contact__item:hover,
.page-about .about-contact__item:focus-visible {
  box-shadow: var(--shadow-hover, 0 8px 32px rgba(0,0,0,0.4));
  transform: translateY(-2px);
}

.page-about .about-contact__item:focus-visible {
  outline: 2px solid var(--color-gold, #C9A96E);
  outline-offset: 2px;
}

.page-about .about-contact__icon {
  width: 48px;
  height: auto;
  flex-shrink: 0;
  border-radius: var(--radius-sm, 4px);
}

.page-about .about-contact__icon-fallback {
  font-size: 2rem;
  flex-shrink: 0;
  width: 48px;
  text-align: center;
}

.page-about .about-contact__label {
  font-size: var(--small-size, 0.8125rem);
  line-height: var(--small-line, 1.5);
  color: var(--color-gray, #888888);
  min-width: 56px;
}

.page-about .about-contact__value {
  font-size: var(--body-size, 1rem);
  font-weight: 500;
  color: var(--color-bg, #1A1A1A);
  word-break: break-all;
}

.page-about .about-contact__hint {
  position: absolute;
  right: 16px;
  font-size: 0.75rem;
  color: var(--color-gold, #C9A96E);
  opacity: 0;
  transition: opacity var(--transition, 0.3s ease);
}

.page-about .about-contact__item:hover .about-contact__hint,
.page-about .about-contact__item:focus-visible .about-contact__hint {
  opacity: 1;
}

.page-about .about-contact__address {
  font-style: normal;
  font-size: var(--small-size, 0.8125rem);
  line-height: var(--small-line, 1.5);
  color: var(--color-gray, #888888);
  margin-top: 8px;
}

/* 右侧金色卡片 */
.page-about .about-contact__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-about .about-contact__card-gold {
  background: linear-gradient(145deg, #1A1A1A, #2A2A2A);
  border: 2px solid var(--about-gold-border);
  border-radius: var(--radius-md, 8px);
  padding: 32px 24px;
  text-align: center;
  max-width: 320px;
  width: 100%;
}

.page-about .about-contact__card-title {
  font-family: var(--font-heading, Inter, 'Noto Sans SC', sans-serif);
  font-size: var(--h3-size, clamp(1.4rem, 3vw, 1.75rem));
  font-weight: 700;
  color: var(--color-primary, #B22222);
  margin: 0 0 8px;
}

.page-about .about-contact__card-sub {
  font-size: var(--small-size, 0.8125rem);
  color: var(--color-gold, #C9A96E);
  margin: 0 0 16px;
}

.page-about .about-contact__card-line {
  width: 60px;
  height: 2px;
  background: var(--about-gold-border);
  margin: 0 auto 16px;
}

.page-about .about-contact__card-icp {
  font-size: 0.75rem;
  color: var(--color-gray, #888888);
  margin: 0;
}

/* ===== 通用区段标题覆写（保持在 .page-about 上下文内） ===== */
.page-about .section__title {
  font-family: var(--font-heading, Inter, 'Noto Sans SC', sans-serif);
  font-size: var(--h2-size, clamp(1.8rem, 4vw, 2.5rem));
  line-height: var(--h2-line, 1.2);
  font-weight: 700;
  color: var(--color-white, #FFFFFF);
  margin: 0 0 16px;
}

.page-about .tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold, #C9A96E);
  border: 1px solid var(--color-gold, #C9A96E);
  border-radius: 2px;
}

/* ===== 卡片覆写 ===== */
.page-about .card {
  background: var(--about-card-bg);
  border-radius: var(--radius-md, 8px);
  box-shadow: var(--shadow-card, 0 4px 20px rgba(0,0,0,0.3));
  border: 1px solid rgba(0,0,0,0.04);
  transition: box-shadow var(--transition, 0.3s ease), transform var(--transition, 0.3s ease);
}

.page-about .card:hover {
  box-shadow: var(--shadow-hover, 0 8px 32px rgba(0,0,0,0.4));
  transform: translateY(-4px);
}

/* ===== 按钮覆写（保持在 .page-about 上下文内） ===== */
.page-about .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-family: var(--font-body, Inter, 'Noto Sans SC', sans-serif);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.4;
  border-radius: var(--radius-sm, 4px);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition, 0.3s ease), color var(--transition, 0.3s ease), border-color var(--transition, 0.3s ease);
  border: 2px solid transparent;
}

.page-about .btn--primary {
  background: var(--color-primary, #B22222);
  color: #FFFFFF;
  border-color: var(--color-primary, #B22222);
}

.page-about .btn--primary:hover,
.page-about .btn--primary:focus-visible {
  background: var(--color-primary-dark, #8B0000);
  border-color: var(--color-primary-dark, #8B0000);
}

.page-about .btn--ghost {
  background: transparent;
  color: var(--color-white, #FFFFFF);
  border-color: var(--color-white, #FFFFFF);
}

.page-about .btn--ghost:hover,
.page-about .btn--ghost:focus-visible {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-gold, #C9A96E);
  color: var(--color-gold, #C9A96E);
}

.page-about .btn:focus-visible {
  outline: 2px solid var(--color-gold, #C9A96E);
  outline-offset: 2px;
}

/* ===== 滚动显现动画（兼容 reduced-motion） ===== */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.1, 0.25, 1), transform 0.7s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.page-about [data-reveal][data-reveal-visible="true"] {
  opacity: 1;
  transform: translateY(0);
}

.page-about [data-reveal][data-reveal-delay="0.1"] {
  transition-delay: 0.1s;
}

.page-about [data-reveal][data-reveal-delay="0.15"] {
  transition-delay: 0.15s;
}

.page-about [data-reveal][data-reveal-delay="0.2"] {
  transition-delay: 0.2s;
}

.page-about [data-reveal][data-reveal-delay="0.25"] {
  transition-delay: 0.25s;
}

.page-about [data-reveal][data-reveal-delay="0.3"] {
  transition-delay: 0.3s;
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-about .about-hero__emblem[data-reveal-visible="true"] {
    animation: none;
  }
}

/* ===== 移动端额外适配 ===== */
@media (max-width: 599px) {
  .page-about .about-hero__actions {
    flex-direction: column;
    align-items: stretch;
  }
  .page-about .about-hero__actions .btn {
    text-align: center;
  }
  .page-about .about-contact__item {
    flex-wrap: wrap;
    padding: 12px 16px;
  }
  .page-about .about-contact__hint {
    position: static;
    opacity: 1;
    font-size: 0.7rem;
    margin-left: auto;
  }
  .page-about .about-value__item {
    padding: 24px 16px;
  }
}

/* ===== 桌面端微调 ===== */
@media (min-width: 1024px) {
  .page-about .about-hero__lead {
    font-size: 1.125rem;
  }
  .page-about .about-contact__card-gold {
    padding: 40px 32px;
  }
}