/* ===== 品牌日志专属样式 ===== */
.page-news {
  --news-accent-bar: var(--accent-green);
  --news-step-bg: rgba(0, 255, 135, 0.06);
  --news-card-border: rgba(0, 255, 135, 0.15);
  --news-tab-active-bg: rgba(0, 255, 135, 0.12);
  --news-tab-hover-bg: rgba(0, 255, 135, 0.06);
  --news-dimension-dot-size: 12px;
  --news-hero-overlay: linear-gradient(135deg, rgba(13, 27, 42, 0.92) 40%, rgba(13, 27, 42, 0.60) 100%);
  color: var(--text-primary);
}

/* ===== 英雄区 ===== */
.page-news__hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 280px;
  padding: 2rem 1.5rem 2.5rem;
  overflow: hidden;
  background: var(--bg-deep);
  margin-bottom: 2.5rem;
}

.page-news__hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--content-max);
  width: 100%;
  margin: 0 auto;
}

.page-news__hero-visual {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.page-news__hero-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}

.page-news__hero::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: var(--news-hero-overlay);
}

.page-news__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 2;
}

.page-news__breadcrumb a {
  color: var(--accent-green);
  text-decoration: none;
  transition: opacity 0.2s;
}

.page-news__breadcrumb a:hover {
  opacity: 0.75;
}

.page-news__breadcrumb-sep {
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.page-news__title {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-white);
  margin: 0 0 0.25rem;
  letter-spacing: -0.02em;
  line-height: 1.15;
  position: relative;
  z-index: 2;
}

.page-news__subtitle {
  font-size: 0.95rem;
  color: var(--accent-green);
  font-weight: 400;
  margin: 0;
  position: relative;
  z-index: 2;
  letter-spacing: 0.06em;
}

/* ===== 导语 ===== */
.page-news__intro {
  padding: 0 1.5rem 2rem;
}

.page-news__intro-text {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 680px;
}

/* ===== 通用章节 ===== */
.page-news__section {
  padding: 2.5rem 1.5rem;
}

.page-news__section-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.page-news__section-heading {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-white);
  margin: 0 0 1rem;
  letter-spacing: -0.01em;
  position: relative;
  padding-left: 1rem;
  border-left: 4px solid var(--accent-green);
}

/* ===== 数据解读指南 ===== */
.page-news__guide {
  background: var(--bg-mid);
}

.page-news__guide-content {
  flex: 1;
}

.page-news__guide-text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
}

.page-news__guide-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-news__guide-step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--news-step-bg);
  border-radius: 12px;
  border: 1px solid rgba(0, 255, 135, 0.08);
  transition: background 0.25s;
}

.page-news__guide-step:hover {
  background: rgba(0, 255, 135, 0.10);
}

.page-news__step-num {
  flex-shrink: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-green);
  line-height: 1.4;
  min-width: 2rem;
}

.page-news__step-body {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.page-news__step-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.page-news__step-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.page-news__guide-visual {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-news__guide-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  object-fit: cover;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

/* ===== 常见分析维度 ===== */
.page-news__dimensions {
  background: var(--bg-deep);
}

.page-news__dimensions-content {
  flex: 1;
}

.page-news__dimensions-text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
}

.page-news__dimensions-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-news__dimension-item {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding: 0.9rem 1rem;
  background: rgba(27, 40, 56, 0.6);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: border-color 0.25s;
}

.page-news__dimension-item:hover {
  border-color: var(--news-card-border);
}

.page-news__dimension-icon {
  flex-shrink: 0;
  width: var(--news-dimension-dot-size);
  height: var(--news-dimension-dot-size);
  border-radius: 50%;
  margin-top: 0.35rem;
}

.page-news__dimension-title {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}

.page-news__dimension-desc {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.page-news__dimensions-visual {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-news__dimensions-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  object-fit: cover;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

/* ===== 文章归档 ===== */
.page-news__archive {
  background: var(--bg-mid);
}

.page-news__archive-heading {
  max-width: var(--content-max);
  margin-left: auto;
  margin-right: auto;
}

.page-news__archive-intro {
  max-width: var(--content-max);
  margin: -0.5rem auto 0;
  padding: 0 1.5rem 1.75rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== 标签页 ===== */
.page-news__tabs {
  max-width: var(--content-max);
  margin: 0 auto;
}

.page-news__tabs-nav {
  display: flex;
  gap: 0.25rem;
  padding: 0 0 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  flex-wrap: wrap;
}

.page-news__tab-btn {
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.6rem 1.2rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 8px 8px 0 0;
  transition: background 0.2s, color 0.2s;
  position: relative;
}

.page-news__tab-btn:hover {
  background: var(--news-tab-hover-bg);
  color: var(--text-primary);
}

.page-news__tab-btn[aria-selected="true"] {
  background: var(--news-tab-active-bg);
  color: var(--accent-green);
  font-weight: 600;
}

.page-news__tab-btn[aria-selected="true"]::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0.5rem;
  right: 0.5rem;
  height: 2px;
  background: var(--accent-green);
  border-radius: 2px 2px 0 0;
}

.page-news__tabs-panels {
  padding-top: 1.5rem;
}

.page-news__tab-panel[hidden] {
  display: none;
}

/* ===== 卡片网格 ===== */
.page-news__card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-news__article-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.25rem;
  border: 1px solid var(--news-card-border);
  border-radius: var(--border-radius);
  background: var(--bg-card);
  transition: transform 0.25s, box-shadow 0.25s;
}

.page-news__article-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.page-news__card-img-wrap {
  width: 100%;
  display: flex;
  justify-content: flex-start;
}

.page-news__card-icon {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: 10px;
  background: var(--bg-mid);
}

.page-news__card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-white);
  margin: 0;
  line-height: 1.4;
}

.page-news__card-excerpt {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.page-news__card-meta {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--accent-green);
  opacity: 0.8;
  letter-spacing: 0.03em;
  margin-top: auto;
}

/* ===== 相关链接区 ===== */
.page-news__related {
  padding: 2rem 1.5rem 3rem;
}

.page-news__related-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  text-align: center;
  max-width: 580px;
  margin: 0 auto;
}

.page-news__link {
  color: var(--accent-green);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.page-news__link:hover {
  border-bottom-color: var(--accent-green);
}

/* ===== 桌面端 ===== */
@media (min-width: 768px) {
  .page-news__hero {
    min-height: 340px;
    padding: 3rem 2rem 3.5rem;
  }

  .page-news__title {
    font-size: 3rem;
  }

  .page-news__subtitle {
    font-size: 1.05rem;
  }

  .page-news__section {
    padding: 3.5rem 2rem;
  }

  .page-news__section-inner {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
  }

  .page-news__section-inner--reverse {
    flex-direction: row-reverse;
  }

  .page-news__guide-content,
  .page-news__dimensions-content {
    flex: 1.1;
  }

  .page-news__guide-visual,
  .page-news__dimensions-visual {
    flex: 0.9;
  }

  .page-news__guide-img,
  .page-news__dimensions-img {
    max-width: 100%;
    border-radius: 18px;
  }

  .page-news__guide-steps {
    gap: 0.85rem;
  }

  .page-news__dimensions-list {
    grid-template-columns: 1fr 1fr;
  }

  .page-news__card-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-news__card-icon {
    width: 80px;
    height: 80px;
  }

  .page-news__archive-intro {
    padding-left: 0;
    padding-right: 0;
  }

  .page-news__tabs-nav {
    padding-left: 0;
    padding-right: 0;
  }

  .page-news__intro {
    padding-left: 2rem;
    padding-right: 2rem;
  }

  .page-news__related {
    padding: 2.5rem 2rem 4rem;
  }
}

@media (min-width: 1024px) {
  .page-news__hero {
    min-height: 380px;
    padding: 3.5rem 2rem 4rem;
  }

  .page-news__title {
    font-size: 3.5rem;
  }

  .page-news__section {
    padding: 4rem 2rem;
  }

  .page-news__section-heading {
    font-size: 1.85rem;
    padding-left: 1.25rem;
  }

  .page-news__guide-steps {
    gap: 0.75rem;
  }

  .page-news__guide-step {
    padding: 1.1rem 1.4rem;
  }

  .page-news__dimension-item {
    padding: 1rem 1.25rem;
  }

  .page-news__card-grid {
    gap: 1.5rem;
  }

  .page-news__article-card {
    padding: 1.5rem;
  }
}

/* ===== 确保图片响应 ===== */
.page-news img {
  max-width: 100%;
  height: auto;
}

/* ===== 面包屑响应微调 ===== */
@media (max-width: 480px) {
  .page-news__hero {
    min-height: 220px;
    padding: 1.5rem 1rem 2rem;
  }

  .page-news__title {
    font-size: 1.6rem;
  }

  .page-news__subtitle {
    font-size: 0.82rem;
  }

  .page-news__section {
    padding: 1.75rem 1rem;
  }

  .page-news__section-heading {
    font-size: 1.25rem;
    padding-left: 0.75rem;
  }

  .page-news__guide-step {
    padding: 0.75rem 1rem;
    gap: 0.75rem;
  }

  .page-news__step-num {
    font-size: 1.1rem;
    min-width: 1.6rem;
  }

  .page-news__tab-btn {
    font-size: 0.82rem;
    padding: 0.5rem 0.9rem;
  }

  .page-news__card-grid {
    gap: 0.9rem;
  }

  .page-news__article-card {
    padding: 1rem;
  }

  .page-news__card-icon {
    width: 50px;
    height: 50px;
  }

  .page-news__intro,
  .page-news__related {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}