.page-news {
  background: #ECE7DC;
}

/* ========== Hero 首屏 ========== */
.page-news .news-hero {
  position: relative;
  background: var(--navy);
  color: var(--cream);
  padding: clamp(36px, 6vw, 76px) 0;
  overflow: hidden;
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: end;
}

.page-news .news-hero__content {
  max-width: 660px;
}

.page-news .news-hero .breadcrumb {
  margin-bottom: 18px;
  color: rgba(245, 239, 228, 0.72);
  font-size: 0.8rem;
}

.page-news .news-hero .breadcrumb a {
  color: var(--lime);
  text-decoration: none;
}

.page-news .news-hero .breadcrumb a:hover {
  text-decoration: underline;
}

.page-news .news-hero__kicker {
  color: var(--lime);
  font-family: var(--font-num);
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.page-news .news-hero__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(2.6rem, 9vw, 5.2rem);
  font-weight: 900;
  line-height: 0.96;
  letter-spacing: 0.01em;
}

.page-news .news-hero__title::after {
  content: "";
  display: inline-block;
  width: 0.85em;
  height: 0.17em;
  background: var(--orange);
  transform: skewX(-16deg);
  margin-left: 0.16em;
  vertical-align: middle;
}

.page-news .news-hero__lead {
  margin: 20px 0 14px;
  padding-left: 16px;
  border-left: 4px solid var(--lime);
  font-family: var(--font-ser);
  font-size: clamp(1.05rem, 2.6vw, 1.5rem);
  font-weight: 700;
  line-height: 1.4;
}

.page-news .news-hero__desc {
  margin: 0;
  color: rgba(245, 239, 228, 0.82);
  font-size: 0.92rem;
  line-height: 1.75;
  max-width: 58ch;
}

.page-news .news-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid rgba(245, 239, 228, 0.24);
  font-family: var(--font-num);
  font-size: 0.78rem;
  color: rgba(245, 239, 228, 0.75);
}

.page-news .news-hero__meta span::before {
  content: "●";
  color: var(--lime);
  margin-right: 6px;
}

.page-news .news-hero__media {
  margin: 0;
  order: -1;
  filter: drop-shadow(8px 8px 0 rgba(184, 225, 70, 0.24));
  clip-path: polygon(8% 0, 100% 0, 100% 100%, 0 100%);
}

.page-news .news-hero__media img {
  display: block;
  width: 100%;
  height: 230px;
  object-fit: cover;
}

/* ========== 主布局 ========== */
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding-top: clamp(28px, 5vw, 58px);
  padding-bottom: 88px;
}

/* ========== 侧边栏索引 ========== */
.page-news .news-sidebar {
  display: block;
  border-top: 3px solid var(--navy);
  padding-top: 24px;
}

.page-news .news-index {
  min-width: 0;
}

.page-news .news-index + .news-index {
  margin-top: 26px;
}

.page-news .news-index__kicker {
  margin-bottom: 8px;
  color: var(--terra);
  font-family: var(--font-num);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
}

.page-news .news-index__title {
  font-family: var(--font-head);
  font-size: 1rem;
  margin: 0 0 14px;
  letter-spacing: 0.04em;
}

.page-news .news-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-index__item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(10, 29, 60, 0.14);
}

.page-news .news-index__num {
  font-family: var(--font-num);
  color: var(--moss);
  font-size: 0.72rem;
  font-weight: 700;
}

.page-news .news-index__label {
  color: var(--graphite);
  font-size: 0.88rem;
  flex: 1;
}

.page-news .news-index__count {
  font-family: var(--font-num);
  color: var(--terra);
  font-size: 0.8rem;
  font-weight: 700;
}

.page-news .news-index__item--link .news-index__link {
  color: var(--navy);
  text-decoration: none;
  font-size: 0.88rem;
  flex: 1;
}

.page-news .news-index__item--link .news-index__link:hover {
  color: var(--orange);
}

.page-news .news-index__arrow {
  color: var(--navy);
  font-family: var(--font-num);
}

/* ========== 右侧主列 ========== */
.page-news .news-main {
  min-width: 0;
}

/* ========== 筛选按钮 ========== */
.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  padding-bottom: 20px;
  border-bottom: 3px solid var(--navy);
}

.page-news .news-filter__label {
  font-family: var(--font-head);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--rockey);
  text-transform: uppercase;
  margin-right: 6px;
}

.page-news .news-filter .filter-btn {
  font-family: var(--font-head);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  padding: 8px 16px;
  border: 2px solid var(--navy);
  background: transparent;
  color: var(--navy);
  cursor: pointer;
  transition: transform 0.14s ease, background 0.14s ease, color 0.14s ease, box-shadow 0.14s ease;
}

.page-news .news-filter .filter-btn:hover {
  transform: translateY(-2px);
  background: rgba(10, 29, 60, 0.06);
}

.page-news .news-filter .filter-btn:active {
  transform: translate(1px, 1px);
}

.page-news .news-filter .filter-btn[data-active] {
  background: var(--navy);
  color: var(--cream);
  box-shadow: 4px 4px 0 var(--lime);
}

.page-news .news-item[hidden] {
  display: none;
}

/* ========== 横幅 ========== */
.page-news .news-banner {
  position: relative;
  margin: 0 0 14px;
  border: 3px solid var(--navy);
  background: var(--navy);
  box-shadow: 10px 10px 0 rgba(10, 29, 60, 0.12);
}

.page-news .news-banner img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .news-banner__caption {
  position: absolute;
  right: 0;
  bottom: 0;
  margin: 0;
  background: rgba(10, 29, 60, 0.9);
  color: var(--lime);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  padding: 8px 14px;
}

/* ========== 文章列表 ========== */
.page-news .news-list {
  position: relative;
}

.page-news .news-list::before {
  content: "ARTICLES";
  position: absolute;
  top: 8px;
  right: 8px;
  writing-mode: vertical-rl;
  font-family: var(--font-head);
  font-size: 6.5rem;
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(10, 29, 60, 0.07);
  pointer-events: none;
  z-index: 0;
}

/* ========== 文章条目 ========== */
.page-news .news-item {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: clamp(22px, 3.6vw, 40px) 0;
  border-bottom: 1px solid rgba(10, 29, 60, 0.16);
  transition: padding-left 0.18s ease, background 0.18s ease;
}

.page-news .news-item:hover {
  padding-left: 6px;
  background: rgba(245, 239, 228, 0.4);
}

.page-news .news-item__head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.page-news .news-item__id {
  font-family: var(--font-num);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
}

.page-news .news-cat {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border: 1px solid currentColor;
  text-transform: uppercase;
}

.page-news .news-cat--update {
  color: var(--moss);
  background: rgba(74, 106, 58, 0.08);
}

.page-news .news-cat--guide {
  color: var(--terra);
  background: rgba(166, 75, 46, 0.08);
}

.page-news .news-cat--analysis {
  color: var(--orange);
  background: rgba(224, 90, 43, 0.08);
}

.page-news .news-cat--data {
  color: var(--navy);
  background: rgba(10, 29, 60, 0.05);
}

.page-news .news-item__title {
  margin: 0;
  font-family: var(--font-ser);
  font-size: clamp(1.2rem, 2.4vw, 1.75rem);
  line-height: 1.35;
  color: var(--graphite);
  max-width: 25em;
}

.page-news .news-item__excerpt {
  margin: 0;
  color: var(--rockey);
  font-size: 0.92rem;
  line-height: 1.75;
  max-width: 62ch;
}

.page-news .news-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .news-item__tags .tag {
  font-family: var(--font-num);
  font-size: 0.7rem;
  letter-spacing: 0.02em;
  padding: 3px 9px;
  border: 1px solid rgba(10, 29, 60, 0.28);
  color: var(--navy);
  background: transparent;
}

.page-news .news-item__media {
  position: relative;
  margin: 6px 0 0;
  border: 3px solid var(--navy);
  background: var(--navy);
  box-shadow: 8px 8px 0 rgba(10, 29, 60, 0.1);
  overflow: hidden;
}

.page-news .news-item__media img {
  display: block;
  width: 100%;
  height: 200px;
  object-fit: cover;
}

/* ========== 说明条 ========== */
.page-news .news-note {
  margin-top: 36px;
  padding: 18px 22px;
  background: rgba(10, 29, 60, 0.05);
  border-left: 6px solid var(--orange);
}

.page-news .news-note__title {
  font-family: var(--font-head);
  font-size: 0.88rem;
  margin: 0 0 6px;
  color: var(--navy);
}

.page-news .news-note__text {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.7;
  color: var(--rockey);
}

/* ========== 平板增强 ========== */
@media (min-width: 600px) {
  .page-news .news-sidebar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .page-news .news-index + .news-index {
    margin-top: 0;
  }

  .page-news .news-hero__media img {
    height: 300px;
  }

  .page-news .news-item__media img {
    height: 260px;
  }
}

/* ========== 桌面端 ========== */
@media (min-width: 960px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 42%);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-news .news-hero__media {
    order: 2;
  }

  .page-news .news-hero__media img {
    height: 340px;
  }

  .page-news .news-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 68px);
  }

  .page-news .news-sidebar {
    display: block;
    border-top: 0;
    border-left: 3px solid var(--navy);
    padding-top: 4px;
    padding-left: 26px;
    align-self: start;
    position: sticky;
    top: 24px;
  }

  .page-news .news-index + .news-index {
    margin-top: 34px;
  }

  .page-news .news-item--media {
    grid-template-columns: minmax(0, 1fr) 38%;
    grid-template-areas:
      "head media"
      "body media"
      "tags media";
    column-gap: 32px;
    align-items: center;
  }

  .page-news .news-item--media .news-item__head {
    grid-area: head;
  }

  .page-news .news-item--media .news-item__body {
    grid-area: body;
  }

  .page-news .news-item--media .news-item__tags {
    grid-area: tags;
  }

  .page-news .news-item--media .news-item__media {
    grid-area: media;
    margin: 0;
    height: 100%;
    align-self: stretch;
  }

  .page-news .news-item--media .news-item__media img {
    height: 100%;
    min-height: 260px;
    object-fit: cover;
  }
}