/* ===== 品牌动态页专属样式 ===== */
.page-news {
  --page-gold-light: #e8c84a;
  --page-gold-glow: rgba(212, 175, 55, 0.25);
  --page-timeline-width: 3px;
  --page-dot-size: 1.25rem;
  --page-content-radius: 0.5rem;
}

/* ---- 顶部英雄区 ---- */
.page-news__hero {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto 1.5rem;
  border-radius: var(--page-content-radius);
  overflow: hidden;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
  background: var(--secondary-black, #1A1A1A);
}

.page-news__hero-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 300px;
  object-fit: cover;
  object-position: center 30%;
}

.page-news__hero-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, rgba(26, 26, 26, 0.7) 0%, rgba(26, 26, 26, 0.35) 100%);
  padding: 1.5rem;
  text-align: center;
}

.page-news__hero-title {
  font-family: var(--heading-font, 'Noto Serif SC', serif);
  font-size: var(--h1-size, 2.5rem);
  font-weight: 700;
  color: var(--primary-gold, #D4AF37);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
  margin: 0 0 0.35rem;
  letter-spacing: 0.08em;
}

.page-news__hero-sub {
  font-family: var(--body-font, 'Noto Sans SC', sans-serif);
  font-size: var(--body-size, 1rem);
  color: var(--text-on-dark, #F5F5F5);
  opacity: 0.9;
  margin: 0;
  letter-spacing: 0.12em;
}

/* ---- 面包屑 ---- */
.page-news__breadcrumb {
  max-width: 1200px;
  margin: 0 auto 1.75rem;
  padding: 0 1rem;
}

.page-news__breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.6rem;
  font-size: var(--small-size, 0.875rem);
  font-family: var(--body-font, 'Noto Sans SC', sans-serif);
}

.page-news__breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-primary, #1A1A1A);
}

.page-news__breadcrumb li + li::before {
  content: "/";
  color: var(--border-gold, #C9A96E);
  font-weight: 300;
}

.page-news__breadcrumb a {
  color: var(--primary-red, #E74C3C);
  text-decoration: none;
  transition: color var(--transition-base, 0.2s ease);
}

.page-news__breadcrumb a:hover,
.page-news__breadcrumb a:focus-visible {
  color: var(--link-hover, #FFD700);
  text-decoration: underline;
}

.page-news__breadcrumb [aria-current="page"] {
  color: var(--text-primary, #1A1A1A);
  font-weight: 600;
}

/* ---- 时间轴容器 ---- */
.page-news__timeline {
  position: relative;
  max-width: 1200px;
  margin: 0 auto 2.5rem;
  padding: 0 1rem 0 2.5rem;
}

/* 时间轴竖线 */
.page-news__timeline::before {
  content: "";
  position: absolute;
  top: 0.75rem;
  left: 1.125rem;
  bottom: 0.75rem;
  width: var(--page-timeline-width);
  background: linear-gradient(to bottom, var(--primary-gold, #D4AF37), var(--border-gold, #C9A96E), var(--primary-gold, #D4AF37));
  border-radius: 2px;
  opacity: 0.6;
}

/* ---- 每个条目 ---- */
.page-news__item {
  position: relative;
  display: flex;
  gap: 1rem;
  margin-bottom: 2.25rem;
}

.page-news__item:last-child {
  margin-bottom: 0;
}

/* 节点区 */
.page-news__item-node {
  flex: 0 0 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding-top: 0.2rem;
}

.page-news__item-dot {
  display: block;
  width: var(--page-dot-size);
  height: var(--page-dot-size);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #f0d68a, var(--primary-gold, #D4AF37) 60%, #b8942e);
  box-shadow: 0 0 0 4px var(--page-gold-glow), 0 2px 8px rgba(0, 0, 0, 0.2);
  z-index: 1;
  transition: box-shadow var(--transition-base, 0.2s ease), transform var(--transition-base, 0.2s ease);
}

.page-news__item-label {
  font-family: var(--body-font, 'Noto Sans SC', sans-serif);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--primary-gold, #D4AF37);
  white-space: nowrap;
  writing-mode: vertical-lr;
  letter-spacing: 0.15em;
  opacity: 0.85;
}

/* 内容卡片 */
.page-news__item-content {
  flex: 1;
  min-width: 0;
  background: var(--background-light, #FEFCF3);
  border: 1px solid var(--border-gold, #C9A96E);
  border-radius: var(--page-content-radius);
  padding: 1rem 1.125rem 1.125rem;
  box-shadow: var(--shadow-card, 0 4px 20px rgba(0, 0, 0, 0.1));
  transition: background var(--transition-base, 0.2s ease), box-shadow var(--transition-base, 0.2s ease), border-color var(--transition-base, 0.2s ease);
}

.page-news__item-content:hover {
  background: linear-gradient(135deg, #fdf8ed 0%, #faf2dc 100%);
  box-shadow: var(--shadow-card-hover, 0 8px 30px rgba(0, 0, 0, 0.2));
  border-color: var(--primary-gold, #D4AF37);
}

.page-news__item-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: cover;
  border-radius: calc(var(--page-content-radius) - 2px);
  margin-bottom: 0.85rem;
  border: 1px solid rgba(212, 175, 55, 0.15);
}

.page-news__item-heading {
  font-family: var(--heading-font, 'Noto Serif SC', serif);
  font-size: var(--h2-size, 1.75rem);
  font-weight: 700;
  color: var(--secondary-black, #1A1A1A);
  margin: 0 0 0.4rem;
  line-height: 1.3;
}

.page-news__item-summary {
  font-family: var(--body-font, 'Noto Sans SC', sans-serif);
  font-size: var(--body-size, 1rem);
  color: var(--text-primary, #1A1A1A);
  line-height: 1.7;
  margin: 0 0 0.75rem;
}

/* ---- 详情展开组件 ---- */
.page-news__details {
  margin-top: 0.25rem;
  border-top: 1px dashed var(--border-gold, #C9A96E);
  padding-top: 0.6rem;
}

.page-news__details-summary {
  font-family: var(--body-font, 'Noto Sans SC', sans-serif);
  font-size: var(--small-size, 0.875rem);
  font-weight: 600;
  color: var(--primary-red, #E74C3C);
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.6rem;
  border-radius: 0.25rem;
  transition: background var(--transition-base, 0.2s ease), color var(--transition-base, 0.2s ease);
  user-select: none;
}

.page-news__details-summary::-webkit-details-marker {
  display: none;
}

.page-news__details-summary:hover,
.page-news__details-summary:focus-visible {
  background: var(--page-gold-glow);
  color: var(--secondary-black, #1A1A1A);
  outline: 2px solid var(--primary-gold, #D4AF37);
  outline-offset: 2px;
}

.page-news__details-summary::before {
  content: "+";
  font-size: 1.1em;
  font-weight: 700;
  transition: transform 0.25s ease;
  display: inline-block;
}

.page-news__details[open] .page-news__details-summary::before {
  content: "−";
  transform: rotate(0deg);
}

/* 切换“阅读全文”与“收起”文本 */
.page-news__details-less {
  display: none;
}

.page-news__details[open] .page-news__details-more {
  display: none;
}

.page-news__details[open] .page-news__details-less {
  display: inline;
}

.page-news__details-body {
  font-family: var(--body-font, 'Noto Sans SC', sans-serif);
  font-size: var(--body-size, 1rem);
  color: var(--text-primary, #1A1A1A);
  line-height: 1.8;
  padding: 0.75rem 0 0.25rem;
}

.page-news__details-body p {
  margin: 0 0 0.75rem;
}

.page-news__details-body p:last-child {
  margin-bottom: 0;
}

.page-news__details-body a {
  color: var(--primary-red, #E74C3C);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-base, 0.2s ease);
}

.page-news__details-body a:hover,
.page-news__details-body a:focus-visible {
  color: var(--link-hover, #FFD700);
}

/* ---- 底部联系区 ---- */
.page-news__connect {
  max-width: 1200px;
  margin: 0 auto 2rem;
  padding: 1.5rem 1rem;
  border-radius: var(--page-content-radius);
  background: var(--section-light, #FEFCF3);
  border: 1px solid var(--border-gold, #C9A96E);
}

.page-news__connect-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.page-news__connect-text {
  font-family: var(--body-font, 'Noto Sans SC', sans-serif);
  font-size: var(--body-size, 1rem);
  color: var(--text-primary, #1A1A1A);
  line-height: 1.7;
  margin: 0;
}

.page-news__connect-text a {
  color: var(--primary-red, #E74C3C);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-base, 0.2s ease);
}

.page-news__connect-text a:hover,
.page-news__connect-text a:focus-visible {
  color: var(--link-hover, #FFD700);
}

/* ---- 响应式 ---- */
@media (max-width: 480px) {
  .page-news__hero {
    border-radius: 0;
    margin-left: -0.5rem;
    margin-right: -0.5rem;
  }

  .page-news__hero-title {
    font-size: 1.6rem;
  }

  .page-news__hero-sub {
    font-size: 0.8rem;
  }

  .page-news__timeline {
    padding-left: 1.75rem;
  }

  .page-news__timeline::before {
    left: 0.625rem;
  }

  .page-news__item-node {
    flex-basis: 1.5rem;
  }

  .page-news__item-dot {
    width: 1rem;
    height: 1rem;
  }

  .page-news__item-content {
    padding: 0.75rem 0.875rem 0.875rem;
  }

  .page-news__item-heading {
    font-size: var(--h3-size, 1.25rem);
  }

  .page-news__item-img {
    max-height: 150px;
  }
}

@media (min-width: 768px) {
  .page-news__timeline {
    padding-left: 3.5rem;
  }

  .page-news__timeline::before {
    left: 1.625rem;
  }

  .page-news__item {
    gap: 1.5rem;
  }

  .page-news__item-node {
    flex-basis: 2.5rem;
  }

  .page-news__item-dot {
    width: 1.5rem;
    height: 1.5rem;
  }

  .page-news__item-label {
    font-size: 0.8rem;
  }

  .page-news__item-content {
    padding: 1.25rem 1.5rem 1.375rem;
  }

  .page-news__item-img {
    max-height: 220px;
  }

  .page-news__item-heading {
    font-size: var(--h2-size, 1.75rem);
  }

  .page-news__connect {
    padding: 2rem 2.5rem;
  }
}

@media (min-width: 1024px) {
  .page-news__timeline {
    padding-left: 4rem;
  }

  .page-news__timeline::before {
    left: 1.875rem;
  }

  .page-news__item {
    gap: 2rem;
    margin-bottom: 2.75rem;
  }

  .page-news__item-node {
    flex-basis: 3rem;
  }

  .page-news__item-content {
    padding: 1.5rem 1.75rem 1.625rem;
  }

  .page-news__item-img {
    max-height: 250px;
  }
}

.page-news {
  --section-light: transparent;
}