/* ===== 文章中心页面专属样式 ===== */
.page-news {
  --news-sidebar-width: 280px;
  background:
    radial-gradient(circle at 88% 8%, rgba(201, 168, 106, 0.10), transparent 300px),
    var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
}

.page-news .page-container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding: 24px 20px 88px;
}

/* 面包屑 */
.page-news .breadcrumb {
  margin: 0 0 28px;
  color: var(--text-2);
}

/* ---- 首屏框景容器 ---- */
.page-news-hero {
  position: relative;
  padding: 36px 26px 42px;
  background: linear-gradient(135deg, var(--surface) 0%, var(--surface-deep) 100%);
  border: 1px solid var(--border);
}

.page-news-hero::before {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  top: 12px;
  bottom: 12px;
  border: 1px solid rgba(201, 168, 106, 0.32);
  pointer-events: none;
}

.page-news-hero ::selection {
  background: var(--accent);
  color: var(--bg);
}

.page-news-hero-inner {
  position: relative;
  z-index: 1;
  padding: 8px;
}

.page-news-hero .section-label {
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
}

.page-news-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.7rem);
  line-height: 1.24;
  letter-spacing: 0.05em;
  margin: 20px 0 18px;
  max-width: 15em;
  color: var(--text);
}

.page-news-hero-desc {
  max-width: 58rem;
  color: var(--text-2);
  font-size: 1rem;
  line-height: 1.9;
}

.page-news-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-news-hero .frame-index {
  position: absolute;
  top: 22px;
  right: 20px;
  z-index: 2;
  color: var(--accent);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
}

/* ---- 编辑部式布局：左窄栏 + 右宽区 ---- */
.page-news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 48px;
  margin-top: 64px;
}

@media (min-width: 960px) {
  .page-news-layout {
    grid-template-columns: var(--news-sidebar-width) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

/* ---- 左侧窄栏：分类索引 ---- */
.page-news-sidebar {
  display: grid;
  gap: 28px;
  align-content: start;
}

@media (min-width: 960px) {
  .page-news-sidebar {
    position: sticky;
    top: calc(var(--header-h) + 30px);
  }
}

.page-news-sidebar-head {
  display: grid;
  gap: 6px;
}

.page-news-sidebar-head h2 {
  font-family: var(--font-serif);
  font-size: 1.65rem;
  margin: 0;
  letter-spacing: 0.04em;
}

.page-news-filter {
  display: grid;
  gap: 10px;
}

.page-news-filter .filter-btn {
  display: inline-block;
  width: 100%;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--text);
  font-size: 0.92rem;
  letter-spacing: 0.05em;
  text-align: left;
  padding: 10px 14px;
  text-decoration: none;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.page-news-filter .filter-btn:hover,
.page-news-filter .filter-btn.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

.page-news-sidebar-img {
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  filter: saturate(0.72);
}

.page-news-note-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 16px 18px;
  color: var(--text-2);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-news-note-card .page-news-note-label {
  display: block;
  margin-bottom: 6px;
  color: var(--accent);
  font-family: var(--font-serif);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
}

.page-news-note-card a {
  color: var(--accent-2);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---- 右侧宽区：版块标题 ---- */
.page-news-section-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.page-news-section-head h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  line-height: 1.3;
  margin: 0;
  padding-left: 14px;
  border-left: 4px solid var(--accent);
  letter-spacing: 0.04em;
}

/* ---- 精选文章 ---- */
.page-news-featured-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

@media (min-width: 1080px) {
  .page-news-featured-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: stretch;
  }
}

.page-news-feature-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-news-feature-main:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(201, 168, 106, 0.22);
}

.page-news-feature-main-media {
  overflow: hidden;
}

.page-news-feature-main-img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform 0.55s ease;
}

.page-news-feature-main:hover .page-news-feature-main-img {
  transform: scale(1.04);
}

.page-news-feature-body {
  padding: 24px 22px;
}

.page-news-feature-body h3,
.page-news-feature-item-body h3 {
  font-family: var(--font-serif);
  line-height: 1.45;
  color: var(--text);
  margin: 10px 0 10px;
}

.page-news-feature-body h3 {
  font-size: clamp(1.4rem, 2.4vw, 2rem);
}

.page-news-feature-body p,
.page-news-feature-item-body p {
  color: var(--text-2);
  font-size: 0.94rem;
  line-height: 1.75;
  margin: 0 0 12px;
}

@media (min-width: 720px) {
  .page-news-feature-main {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }
  .page-news-feature-main-img {
    height: 100%;
    object-fit: cover;
  }
}

.page-news-feature-side {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-news-feature-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 14px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-news-feature-item:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(201, 168, 106, 0.18);
}

.page-news-feature-thumb-wrap {
  overflow: hidden;
}

.page-news-feature-thumb {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.page-news-feature-item:hover .page-news-feature-thumb {
  transform: scale(1.04);
}

.page-news-feature-item-body h3 {
  font-size: 1.18rem;
}

.page-news-feature-item-body .btn {
  margin-top: 4px;
}

@media (min-width: 760px) {
  .page-news-feature-item {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: center;
  }
  .page-news-feature-thumb-wrap {
    height: 100%;
    align-self: stretch;
  }
  .page-news-feature-thumb {
    height: 100%;
  }
}

/* ---- 文章列表分类区块 ---- */
.page-news-list {
  margin-top: 72px;
}

.page-news-category {
  margin-top: 52px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
}

.page-news-category-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news-category-index {
  color: var(--accent);
  font-family: var(--font-serif);
  font-size: 1.2rem;
  letter-spacing: 0.1em;
}

.page-news-category-head h3 {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  margin: 0;
  letter-spacing: 0.04em;
}

.page-news-category-head .meta-tag {
  margin-left: auto;
}

/* ---- 单篇文章条目 ---- */
.page-news-articles {
  margin-top: 12px;
}

.page-news-article {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 22px 0 22px 20px;
  border-left: 2px solid rgba(201, 168, 106, 0.55);
  margin-left: 4px;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.page-news-article:hover {
  border-left-color: var(--accent-2);
  background: rgba(18, 42, 74, 0.42);
}

.page-news-article::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 8px;
  height: 1px;
  background: var(--accent);
  transform: translateX(-50%);
}

.page-news-article-num {
  color: var(--accent);
  font-family: var(--font-serif);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  padding-top: 4px;
}

.page-news-article-main h4 {
  margin: 0 0 8px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.page-news-article-main p {
  margin: 0 0 12px;
  color: var(--text-2);
  font-size: 0.94rem;
  line-height: 1.8;
}

@media (min-width: 720px) {
  .page-news-article {
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 22px;
  }
}

/* ---- 时间与标签行 ---- */
.page-news-meta-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--text-2);
  font-size: 0.82rem;
}

.page-news-meta-line .artifact-tag {
  margin-right: 2px;
}

/* ---- 订阅与反馈 ---- */
.page-news-subscribe {
  position: relative;
  margin-top: 80px;
  padding: 48px 26px;
  background: linear-gradient(145deg, var(--surface-deep) 0%, var(--surface) 100%);
  border: 1px solid var(--border);
  overflow: hidden;
}

.page-news-subscribe-inner {
  position: relative;
  z-index: 1;
  max-width: 640px;
}

.page-news-subscribe .section-label {
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
}

.page-news-subscribe h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin: 14px 0 16px;
  letter-spacing: 0.04em;
}

.page-news-subscribe p {
  color: var(--text-2);
  line-height: 1.9;
  margin: 0 0 24px;
}

.page-news-subscribe-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-bottom: 22px;
}

.page-news-subscribe-item {
  display: inline-grid;
  gap: 4px;
}

.page-news-subscribe-label {
  color: var(--accent);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
}

.page-news-subscribe-item span:last-child {
  color: var(--text);
  font-size: 0.96rem;
}

.page-news-subscribe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news-subscribe-decor {
  position: absolute;
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
  width: 200px;
  height: auto;
  border-radius: 50%;
  opacity: 0.24;
  pointer-events: none;
}

@media (min-width: 900px) {
  .page-news-subscribe {
    padding: 56px 48px;
  }
  .page-news-subscribe-decor {
    width: 320px;
  }
}